diff --git a/clang/test/CodeGen/builtin-expect.c b/clang/test/CodeGen/builtin-expect.c
@@ -44,7 +44,6 @@ void expect_value_side_effects(void) {
 
 // Make sure that issigprocmask() is called before bar()?
 // There's no compare, so there's nothing to expect?
-// rdar://9330105
 void isigprocmask(void);
 long bar(void);
 

diff --git a/clang/test/CodeGen/builtin-memfns.c b/clang/test/CodeGen/builtin-memfns.c
@@ -23,8 +23,6 @@ int test1(int argc, char **argv) {
   return 0;
 }
 
-// rdar://9289468
-
 // CHECK: @test2
 // CHECK: call void @llvm.memcpy.p0.p0.i32
 char* test2(char* a, char* b) {
@@ -70,7 +68,6 @@ int test7(int *p) {
   // CHECK: call void @llvm.memset{{.*}} align 1{{.*}}256, i1 false)
 }
 
-// <rdar://problem/11314941>
 // Make sure we don't over-estimate the alignment of fields of
 // packed structs.
 struct PS {

diff --git a/clang/test/CodeGen/builtins-overflow.c b/clang/test/CodeGen/builtins-overflow.c
@@ -1,5 +1,4 @@
 // Test CodeGen for Security Check Overflow Builtins.
-// rdar://13421498
 
 // RUN: %clang_cc1 -triple "i686-unknown-unknown"   -emit-llvm -x c %s -o - | FileCheck -DLONG_TYPE=i32 -DLONG_MAX=2147483647 %s
 // RUN: %clang_cc1 -triple "x86_64-unknown-unknown" -emit-llvm -x c %s -o - | FileCheck -DLONG_TYPE=i64 -DLONG_MAX=9223372036854775807 %s

diff --git a/clang/test/CodeGen/byval-memcpy-elim.c b/clang/test/CodeGen/byval-memcpy-elim.c
@@ -21,7 +21,6 @@ void test1(struct Test1S *A, struct Test2S *B) {
 
 // The above gets tricker when the byval argument requires higher alignment
 // than the natural alignment of the type in question.
-// rdar://9483886
 
 // Make sure we do generate a memcpy when we cannot guarantee alignment.
 struct Test3S {

diff --git a/clang/test/CodeGen/c11atomics-ios.c b/clang/test/CodeGen/c11atomics-ios.c
@@ -4,8 +4,6 @@
 // only deploy on processors with native atomics support, so it's a good
 // way to test those code-paths.
 
-// This work was done in pursuit of <rdar://13338582>.
-
 // CHECK-LABEL: define{{.*}} void @testFloat(ptr
 void testFloat(_Atomic(float) *fp) {
 // CHECK:      [[FP:%.*]] = alloca ptr

diff --git a/clang/test/CodeGen/capture-complex-expr-in-block.c b/clang/test/CodeGen/capture-complex-expr-in-block.c
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 %s -emit-llvm -o - -fblocks -triple x86_64-apple-darwin10 | FileCheck %s
-// rdar://10033986
 
 typedef void (^BLOCK)(void);
 int main (void)

diff --git a/clang/test/CodeGen/cfstring.c b/clang/test/CodeGen/cfstring.c
@@ -2,8 +2,8 @@
 
 // RUN: %clang_cc1 -triple x86_64-macho -emit-llvm %s -o %t
 
-// <rdar://problem/10657500>: Check that the backing store of CFStrings are
-// constant with the -fwritable-strings flag.
+// Check that the backing store of CFStrings are constant with the
+// -fwritable-strings flag.
 //
 // RUN: %clang_cc1 -triple x86_64-macho -fwritable-strings -emit-llvm %s -o - | FileCheck %s
 //
@@ -17,7 +17,6 @@ void f(void) {
   CFSTR("Hello, World!");
 }
 
-// rdar://6248329
 void *G = CFSTR("yo joe");
 
 void h(void) {

diff --git a/clang/test/CodeGen/cfstring2.c b/clang/test/CodeGen/cfstring2.c
@@ -9,6 +9,5 @@ void f(void) {
   CFSTR("Hello, World!");
 }
 
-// rdar://6151192
 void *G = CFSTR("yo joe");
 
diff --git a/clang/test/CodeGen/complex-builtins-3.c b/clang/test/CodeGen/complex-builtins-3.c
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 %s -O1 -emit-llvm -o - | FileCheck %s
-// rdar://8315199
 
 /* Test for builtin conj, creal, cimag.  */
 /* Origin: Joseph Myers <jsm28@cam.ac.uk> */

diff --git a/clang/test/CodeGen/complex.c b/clang/test/CodeGen/complex.c
@@ -87,7 +87,6 @@ void t6(void) {
   --ci1;
 }
 
-// <rdar://problem/7958272>
 double t7(double _Complex c) {
   return __builtin_fabs(__real__(c));
 }

diff --git a/clang/test/CodeGen/conditional-gnu-ext.c b/clang/test/CodeGen/conditional-gnu-ext.c
@@ -5,12 +5,10 @@ int foo(int x, short y) {
   return x ?: y;
 }
 
-// rdar://6586493
 float test(float x, int Y) {
   return Y != 0 ? : x;
 }
 
-// rdar://8446940
 extern void abort(void);
 void  test1 (void) {
   char x[1];
@@ -20,7 +18,6 @@ void  test1 (void) {
     abort();
 }
 
-// rdar://8453812
 _Complex int getComplex(_Complex int val) {
   static int count;
   if (count++)

diff --git a/clang/test/CodeGen/conditional.c b/clang/test/CodeGen/conditional.c
@@ -55,7 +55,6 @@ int test10(int c) {
 }
 enum { Gronk = 5 };
 
-// rdar://9289603
 // CHECK: @test11
 // CHECK: select i1 {{.*}}, i32 4, i32 5
 int test11(int c) {

diff --git a/clang/test/CodeGen/debug-info-block-decl.c b/clang/test/CodeGen/debug-info-block-decl.c
@@ -1,6 +1,5 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -debug-info-kind=limited -fblocks -emit-llvm -o - %s | FileCheck %s
 // Assignment and block entry should point to the same line.
-// rdar://problem/14039866
 
 // CHECK: define{{.*}}@main()
 // CHECK: store {{.*}}, !dbg ![[ASSIGNMENT:[0-9]+]]

diff --git a/clang/test/CodeGen/debug-info-crash.c b/clang/test/CodeGen/debug-info-crash.c
@@ -1,7 +1,6 @@
 // REQUIRES: x86-registered-target
 // RUN: %clang_cc1 -std=c89 -triple i386-apple-darwin10 -fblocks -debug-info-kind=limited -S %s -o -
 
-// rdar://7590323
 typedef struct dispatch_queue_s *dispatch_queue_t;
 __attribute__((visibility("default")))
 extern struct dispatch_queue_s _dispatch_main_q;
@@ -21,7 +20,6 @@ dispatch_item_t LEGACY_dispatch_call(dispatch_queue_t dq,
     );
 }
 
-// radar://9008853
 typedef struct P {
   int x;
 } PS;

diff --git a/clang/test/CodeGen/debug-info-file-change.c b/clang/test/CodeGen/debug-info-file-change.c
@@ -1,6 +1,5 @@
 // RUN: %clang -emit-llvm -S -g %s -o - | FileCheck %s
 
-// Radar 8396182
 // There are no lexical blocks, but we need two DILexicalBlockFiles to
 // correctly represent file info.
 

diff --git a/clang/test/CodeGen/debug-info-line2.c b/clang/test/CodeGen/debug-info-line2.c
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -triple x86_64-darwin-apple -debug-info-kind=limited -emit-llvm -o - %s | FileCheck %s
-// Radar 9199234
 
 int bar(void);
 int foo(int i) {

diff --git a/clang/test/CodeGen/debug-info-scope.c b/clang/test/CodeGen/debug-info-scope.c
@@ -2,7 +2,6 @@
 // RUN: %clang_cc1 -dwarf-version=4 -debug-info-kind=line-tables-only -disable-llvm-passes -emit-llvm < %s | FileCheck --check-prefix=GMLT %s
 // RUN: %clang_cc1 -dwarf-version=4 -debug-info-kind=line-directives-only -disable-llvm-passes -emit-llvm < %s | FileCheck --check-prefix=GMLT %s
 // Two variables with same name in separate scope.
-// Radar 8330217.
 int main(void) {
 	int j = 0;
 	int k = 0;

diff --git a/clang/test/CodeGen/debug-info.c b/clang/test/CodeGen/debug-info.c
@@ -41,8 +41,6 @@ struct foo2 {
 
 struct foo2 foo2;
 
-
-// Radar 7325611
 // CHECK-DAG: !DIDerivedType(tag: DW_TAG_typedef, name: "barfoo"
 typedef int barfoo;
 barfoo foo(void) {

diff --git a/clang/test/CodeGen/decl.c b/clang/test/CodeGen/decl.c
@@ -19,7 +19,6 @@ void test1(void) {
 }
 
 
-// rdar://7346691
 void test2(void) {
   // This should codegen as a "@test2.x" global + memcpy.
   int x[] = { 1, 2, 3, 4, 6, 8, 9, 10, 123, 231, 123,23, 24 };
@@ -78,13 +77,11 @@ void test6(void) {
   test6f(&x);
 }
 
-// rdar://7657600
 struct test7s { int a; int b; } test7[] = {
   {1, 2},
   {4},
 };
 
-// rdar://7872531
 #pragma pack(push, 2)
 struct test8s { int f0; char f1; } test8g = {};
 
@@ -104,7 +101,7 @@ void init_error(void) {
 
 
 
-// rdar://8147692 - ABI crash in recursive struct-through-function-pointer.
+// ABI crash in recursive struct-through-function-pointer.
 typedef struct {
   int x5a;
 } x5;

diff --git a/clang/test/CodeGen/designated-initializers.c b/clang/test/CodeGen/designated-initializers.c
@@ -53,7 +53,6 @@ struct ds ds7 = {
 };
 
 
-// <rdar://problem/10465114>
 struct overwrite_string_struct1 {
   __typeof(L"foo"[0]) L[6];
   int M;
@@ -142,7 +141,6 @@ union_16644_t union_16644_instance_4[2] =
 // CHECK: @lab ={{.*}} global { [4 x i8], i32 } { [4 x i8] undef, i32 123 }
 struct leading_anon_bitfield { int : 32; int n; } lab = { .n = 123 };
 
-// rdar://45691981
 struct Base {
   struct {
     int A;

diff --git a/clang/test/CodeGen/dostmt.c b/clang/test/CodeGen/dostmt.c
@@ -61,7 +61,6 @@ int test4(void) {
   return i;
 }
 
-// rdar://6103124
 void test5(void) {
   do { break; } while(0);
 }

diff --git a/clang/test/CodeGen/exceptions-strictfp.c b/clang/test/CodeGen/exceptions-strictfp.c
@@ -3,7 +3,6 @@
 // Verify strictfp attributes on invoke calls (and therefore also on
 // function definitions).
 
-// rdar://problem/8621849
 void test1(void) {
   extern void test1_helper(void (^)(int));
 

diff --git a/clang/test/CodeGen/exceptions.c b/clang/test/CodeGen/exceptions.c
@@ -1,7 +1,6 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -Wno-strict-prototypes -emit-llvm -o - %s -fexceptions -fblocks | FileCheck %s
 // RUN: %clang_cc1 -triple armv7-apple-unknown -Wno-strict-prototypes -emit-llvm -o - %s -fexceptions -exception-model=sjlj -fblocks | FileCheck %s -check-prefix=CHECK-ARM
 
-// rdar://problem/8621849
 void test1(void) {
   extern void test1_helper(void (^)(int));
 

diff --git a/clang/test/CodeGen/exprs.c b/clang/test/CodeGen/exprs.c
@@ -53,7 +53,6 @@ void eMaisUma(void) {
     return;
 }
 
-// rdar://6520707
 void f0(void (*fp)(void), void (*fp2)(void)) {
   int x = fp - fp2;
 }
@@ -105,7 +104,6 @@ int f8(void) {
   return ({ foo(); }).Y;
 }
 
-// rdar://6880558
 struct S;
 struct C {
   int i;
@@ -120,7 +118,6 @@ void f10(void) {
   __builtin_sin(0);
 }
 
-// rdar://7530813
 // CHECK-LABEL: define{{.*}} i32 @f11
 int f11(long X) {
   int A[100];

diff --git a/clang/test/CodeGen/ext-vector.c b/clang/test/CodeGen/ext-vector.c
@@ -113,8 +113,8 @@ void test6(float4 *ap, float4 *bp, float c) {
   a *= c;
   a /= c;
 
-  // Vector comparisons can sometimes crash the x86 backend: rdar://6326239,
-  // reject them until the implementation is stable.
+  // Vector comparisons can sometimes crash the x86 backend, reject them until
+  // the implementation is stable.
 #if 0
   int4 cmp;
   cmp = a < b;

diff --git a/clang/test/CodeGen/func-aligned.c b/clang/test/CodeGen/func-aligned.c
@@ -1,6 +1,5 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin %s -emit-llvm -o - | FileCheck %s
 
-// rdar://7270273
 void foo(void) __attribute__((aligned (64)));
 void foo(void) {
 // CHECK: define{{.*}} void @foo() {{.*}} align 64

diff --git a/clang/test/CodeGen/func-in-block.c b/clang/test/CodeGen/func-in-block.c
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fblocks -emit-llvm -o - %s | FileCheck %s
-// rdar: // 7860965
 
 extern void PRINTF(const char *);
 extern void B(void (^)(void));

diff --git a/clang/test/CodeGen/function-attributes.c b/clang/test/CodeGen/function-attributes.c
@@ -62,7 +62,7 @@ void f13(void) __attribute__((pure)) __attribute__((const));
 void f13(void){}
 
 
-// <rdar://problem/7102668> [irgen] clang isn't setting the optsize bit on functions
+// [irgen] clang isn't setting the optsize bit on functions
 // CHECK-LABEL: define{{.*}} void @f15
 // CHECK: [[NUW]]
 // CHECK: {

diff --git a/clang/test/CodeGen/functions.c b/clang/test/CodeGen/functions.c
@@ -10,7 +10,6 @@ int g(int i) {
   return g(i);
 }
 
-// rdar://6110827
 typedef void T(void);
 void test3(T f) {
   f();

diff --git a/clang/test/CodeGen/global-init.c b/clang/test/CodeGen/global-init.c
@@ -58,6 +58,5 @@ unsigned long long uint_max = 4294967295u;
 // NOTE: tentative definitions are processed at the end of the translation unit.
 
 // This shouldn't be emitted as common because it has an explicit section.
-// rdar://7119244
 // CHECK: @b ={{.*}} global i32 0, section "foo"
 int b __attribute__((section("foo")));
diff --git a/clang/test/CodeGen/implicit-arg.c b/clang/test/CodeGen/implicit-arg.c
@@ -1,6 +1,5 @@
 // RUN: %clang_cc1 %s -emit-llvm     -o -
 // RUN: %clang_cc1 %s -emit-llvm -O1 -o -
-// rdar://6518089
 
 static int bar();
 void foo() {

diff --git a/clang/test/CodeGen/init.c b/clang/test/CodeGen/init.c
@@ -53,7 +53,6 @@ vec3 f5(vec3 value) {
   }};
 }
 
-// rdar://problem/8154689
 void f6(void) {
   int x;
   long ids[] = { (long) &x };  

diff --git a/clang/test/CodeGen/inline.c b/clang/test/CodeGen/inline.c
@@ -87,7 +87,6 @@ void (*P1)() = gnu_inline;
 extern __inline __attribute__((gnu_inline)) void gnu_ei_inline() {}
 void (*P)() = gnu_ei_inline;
 
-// <rdar://problem/6818429>
 int test1();
 __inline int test1() { return 4; }
 __inline int test2() { return 5; }

diff --git a/clang/test/CodeGen/integer-overflow.c b/clang/test/CodeGen/integer-overflow.c
@@ -6,7 +6,6 @@
 
 
 // Tests for signed integer overflow stuff.
-// rdar://7432000 rdar://7221421
 void test1(void) {
   // DEFAULT-LABEL: define{{.*}} void @test1
   // WRAPV-LABEL: define{{.*}} void @test1

diff --git a/clang/test/CodeGen/libcalls-fno-builtin.c b/clang/test/CodeGen/libcalls-fno-builtin.c
@@ -10,8 +10,6 @@
 // RUN: %clang_cc1 -S -O3 -fno-builtin -o - %s | FileCheck --check-prefix=ASM %s
 // RUN: %clang_cc1 -S -O3 -fno-builtin-ceil -o - %s | FileCheck --check-prefix=ASM-INDIV %s
 
-// rdar://10551066
-
 typedef __SIZE_TYPE__ size_t;
 typedef struct FILE FILE;
 

diff --git a/clang/test/CodeGen/ms-inline-asm.cpp b/clang/test/CodeGen/ms-inline-asm.cpp
@@ -1,8 +1,6 @@
 // REQUIRES: x86-registered-target
 // RUN: %clang_cc1 -x c++ %s -triple i386-apple-darwin10 -fasm-blocks -emit-llvm -o - -std=c++11 | FileCheck %s
 
-// rdar://13645930
-
 struct Foo {
   static int *ptr;
   static int a, b;

diff --git a/clang/test/CodeGen/ms_struct-bitfield-1.c b/clang/test/CodeGen/ms_struct-bitfield-1.c
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -emit-llvm-only  -triple x86_64-apple-darwin9 %s
-// rdar://8823265
 
 #define ATTR __attribute__((__ms_struct__))
 

diff --git a/clang/test/CodeGen/ms_struct-bitfield-2.c b/clang/test/CodeGen/ms_struct-bitfield-2.c
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -emit-llvm-only  -triple x86_64-apple-darwin9 %s
-// rdar://8823265
 
 #define ATTR __attribute__((__ms_struct__))
 

diff --git a/clang/test/CodeGen/ms_struct-bitfield-3.c b/clang/test/CodeGen/ms_struct-bitfield-3.c
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -emit-llvm-only  -triple i386-apple-darwin9 %s
-// rdar://8823265
 
 #define ATTR __attribute__((__ms_struct__))
 

diff --git a/clang/test/CodeGen/ms_struct-bitfield-init.c b/clang/test/CodeGen/ms_struct-bitfield-init.c
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -emit-llvm-only  -triple x86_64-apple-darwin9 %s
-// rdar://8823265
 
 extern void abort(void);
 #define ATTR __attribute__((__ms_struct__))

diff --git a/clang/test/CodeGen/ms_struct-bitfield.c b/clang/test/CodeGen/ms_struct-bitfield.c
@@ -1,8 +1,6 @@
 // RUN: %clang_cc1 -emit-llvm -o - -triple x86_64-apple-darwin9 %s | FileCheck %s
 // RUN: %clang_cc1 -emit-llvm -o - -triple thumbv7-apple-ios -target-abi apcs-gnu %s | FileCheck %s -check-prefix=CHECK-ARM
 
-// rdar://8823265
-
 // Note that we're declaring global variables with these types,
 // triggering both Sema and IRGen struct layout.
 
@@ -149,8 +147,7 @@ int s10 = sizeof(t10);
 // CHECK: @s10 ={{.*}} global i32 16
 // CHECK-ARM: @s10 ={{.*}} global i32 8
 
-// rdar://16041826 - ensure that ms_structs work correctly on a
-// !useBitFieldTypeAlignment() target
+// ensure that ms_structs work correctly on a !useBitFieldTypeAlignment() target
 struct {
   unsigned int a : 31;
   unsigned int b : 2;

diff --git a/clang/test/CodeGen/ms_struct-pack.c b/clang/test/CodeGen/ms_struct-pack.c
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -emit-llvm-only  -triple i386-apple-darwin9 -fdump-record-layouts %s | FileCheck %s
-// rdar://8823265
 
 #pragma pack(1)
 struct _one_ms {
@@ -123,7 +122,6 @@ typedef struct _eight_ms eight_ms;
 
 static int a8[(sizeof(eight_ms) == 48) - 1];
 
-// rdar://15926990
 #pragma pack(2)
 struct test0 {
   unsigned long a : 8;

diff --git a/clang/test/CodeGen/no-opt-volatile-memcpy.c b/clang/test/CodeGen/no-opt-volatile-memcpy.c
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -triple=x86_64-apple-darwin  -emit-llvm -o - %s | FileCheck %s
-// rdar://11861085
 
 struct s {
   char filler [128];

diff --git a/clang/test/CodeGen/noinline.c b/clang/test/CodeGen/noinline.c
@@ -1,5 +1,4 @@
 // Make sure -fno-inline-functions is behaving correctly.
-// rdar://10972766
 
 // RUN: %clang_cc1 -O3 -fno-inline -fno-inline-functions -emit-llvm %s -o - | FileCheck -check-prefix=NOINLINE %s
 

diff --git a/clang/test/CodeGen/packed-nest-unpacked.c b/clang/test/CodeGen/packed-nest-unpacked.c
@@ -6,7 +6,6 @@ struct Y g;
 void f(struct X);
 struct X foo(void);
 
-// <rdar://problem/10463337>
 struct X test1(void) {
   // CHECK: @test1
   // CHECK: call void @llvm.memcpy.p0.p0.i64(ptr {{.*}}, ptr align 1 getelementptr inbounds (%struct.Y, ptr @g, i32 0, i32 1), i64 24, i1 false)
@@ -25,7 +24,6 @@ void test3(struct X a) {
   g.y = a;
 }
 
-// <rdar://problem/10530444>
 void test4(void) {
   // CHECK: @test4
   // CHECK: call void @llvm.memcpy.p0.p0.i64(ptr {{.*}}, ptr align 1 getelementptr inbounds (%struct.Y, ptr @g, i32 0, i32 1), i64 24, i1 false)
@@ -39,7 +37,6 @@ int test5(void) {
   return g.y.x[0];
 }
 
-// <rdar://problem/11220251>
 void test6(void) {
   // CHECK: @test6
   // CHECK: call void @llvm.memcpy.p0.p0.i64(ptr align 1 getelementptr inbounds (%struct.Y, ptr @g, i32 0, i32 1), ptr align 4 %{{.*}}, i64 24, i1 false)

diff --git a/clang/test/CodeGen/pascal-wchar-string.c b/clang/test/CodeGen/pascal-wchar-string.c
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -emit-llvm -o -  %s -fpascal-strings -fwchar-type=short -fno-signed-wchar | FileCheck %s
-// rdar://8020384
 
 #include <stddef.h>
 

diff --git a/clang/test/CodeGen/pointer-to-int.c b/clang/test/CodeGen/pointer-to-int.c
@@ -5,7 +5,6 @@ int test(void* i)
   return (int)i;
 }
 
-// rdar://6093986
 int test2(void) {
   float x[2];
   return x;

diff --git a/clang/test/CodeGen/pragma-pack-2.c b/clang/test/CodeGen/pragma-pack-2.c
@@ -5,8 +5,6 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin9 %s -emit-llvm -o - | FileCheck -check-prefix CHECK-X64 %s
 // CHECK-X64: %struct.s0 = type <{ i64, i64, i32, [12 x i32] }>
 // CHECK-X64: %struct.s1 = type { [15 x i32], %struct.s0 }
-
-// rdar://problem/7095436
 #pragma pack(4)
 
 struct s0 {

diff --git a/clang/test/CodeGen/pragma-pack-3.c b/clang/test/CodeGen/pragma-pack-3.c
@@ -4,7 +4,6 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin9 %s -emit-llvm -o - | FileCheck -check-prefix CHECK-X64 %s
 // CHECK-X64: %union.command = type <{ ptr, [2 x i8] }>
 
-// <rdar://problem/7184250>
 #pragma pack(push, 2)
 typedef union command {
   void *windowRef;

diff --git a/clang/test/CodeGen/private-extern-redef.c b/clang/test/CodeGen/private-extern-redef.c
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -triple x86_64-darwin-apple -emit-llvm -o - %s | FileCheck %s
-// rdar://9609649
 
 __private_extern__ const int I;
 __private_extern__ const int J = 927;

diff --git a/clang/test/CodeGen/redef-ext-inline.c b/clang/test/CodeGen/redef-ext-inline.c
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -emit-llvm %s -o - -std=gnu89
-// rdar://7208839
 
 extern inline int f1 (void) {return 1;}
 int f3 (void) {return f1();}

diff --git a/clang/test/CodeGen/sanitize-blocks.c b/clang/test/CodeGen/sanitize-blocks.c
@@ -2,7 +2,6 @@
 
 // Awkward interactions of sanitizers with blocks.
 
-// rdar://22071955
 const char *TheString = "Hello, world!";
 const char *(^getString)(void) = ^{
   return TheString;

diff --git a/clang/test/CodeGen/struct-init.c b/clang/test/CodeGen/struct-init.c
@@ -22,7 +22,6 @@ struct GLGENH ABHFBF = {1};
 typedef __attribute__(( ext_vector_type(2) )) unsigned int uint2;
 typedef __attribute__(( __vector_size__(8) )) unsigned int __neon_uint32x2_t;
 
-// rdar://8183908
 typedef unsigned int uint32_t;
 typedef __attribute__((neon_vector_type(2)))  uint32_t uint32x2_t;
 void foo(void) {

diff --git a/clang/test/CodeGen/switch-dce.c b/clang/test/CodeGen/switch-dce.c
@@ -1,6 +1,6 @@
 // RUN: %clang_cc1 -triple i386-unknown-unknown %s -emit-llvm -o - | FileCheck %s
 
-// PR9322 and rdar://6970405
+// PR9322
 
 // CHECK: @test1
 // CHECK-NOT: switch

diff --git a/clang/test/CodeGen/switch.c b/clang/test/CodeGen/switch.c
@@ -197,7 +197,6 @@ int f13(unsigned x) {
 
 // Don't delete a basic block that we want to introduce later references to.
 // This isn't really specific to switches, but it's easy to show with them.
-// rdar://problem/8837067
 int f14(int x) {
   switch (x) {
 

diff --git a/clang/test/CodeGen/transparent-union-redecl.c b/clang/test/CodeGen/transparent-union-redecl.c
@@ -2,7 +2,6 @@
 
 // Test that different order of declarations is acceptable and that
 // implementing different redeclarations is acceptable.
-// rdar://problem/34949329
 
 typedef union {
   int i;

diff --git a/clang/test/CodeGen/union-align.c b/clang/test/CodeGen/union-align.c
@@ -1,7 +1,6 @@
 // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm %s -o - | grep load | grep "4 x float" | not grep "align 4"
 // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm %s -o - | grep load | grep "4 x float" | grep "align 16"
 // PR3432
-// rdar://6536377
 
 typedef float __m128 __attribute__ ((__vector_size__ (16)));
 

diff --git a/clang/test/CodeGen/unwind-attr.c b/clang/test/CodeGen/unwind-attr.c
@@ -9,14 +9,14 @@ int test0(void) {
   return opaque();
 }
 
-// <rdar://problem/8087431>: locally infer nounwind at -O0
+// locally infer nounwind at -O0
 // CHECK:       define{{.*}} [[INT:i.*]] @test1() [[NUW:#[0-9]+]] {
 // CHECK-NOEXC: define{{.*}} [[INT:i.*]] @test1() [[NUW]] {
 int test1(void) {
   return 0;
 }
 
-// <rdar://problem/8283071>: not for weak functions
+// not for weak functions
 // CHECK:       define weak{{.*}} [[INT:i.*]] @test2() [[TF]] {
 // CHECK-NOEXC: define weak{{.*}} [[INT:i.*]] @test2() [[NUW]] {
 __attribute__((weak)) int test2(void) {

diff --git a/clang/test/CodeGen/utf16-cfstrings.c b/clang/test/CodeGen/utf16-cfstrings.c
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin -emit-llvm %s -o - | FileCheck %s
-// <rdar://problem/10655949>
 
 // CHECK: @.str = private unnamed_addr constant [9 x i16] [i16 252, i16 98, i16 101, i16 114, i16 104, i16 117, i16 110, i16 100, i16 0], section "__TEXT,__ustring", align 2
 

diff --git a/clang/test/CodeGen/vector-alignment.c b/clang/test/CodeGen/vector-alignment.c
@@ -10,7 +10,6 @@
 // RUN:  -emit-llvm -o - %s | FileCheck %s --check-prefix=ALL --check-prefix=AVX512
 // RUN: %clang_cc1 -w -triple   i386-apple-darwin10 -target-feature +avx512f \
 // RUN:  -emit-llvm -o - %s | FileCheck %s --check-prefix=ALL --check-prefix=AVX512
-// rdar://11759609
 
 // At or below target max alignment with no aligned attribute should align based
 // on the size of vector.

diff --git a/clang/test/CodeGen/visibility.c b/clang/test/CodeGen/visibility.c
@@ -51,7 +51,6 @@ int f_def(void) {
 struct Test1 { int field; };
 void  __attribute__((visibility("default"))) test1(struct Test1 *v) { }
 
-// rdar://problem/8595231
 // CHECK-DEFAULT-LABEL: define{{.*}} void @test2()
 // CHECK-PROTECTED-LABEL: define{{.*}} void @test2()
 // CHECK-HIDDEN-LABEL: define{{.*}} void @test2()
@@ -68,7 +67,6 @@ __private_extern__ void test3(void) {}
 extern int test4;
 __private_extern__ int test4 = 10;
 
-// rdar://12399248
 // CHECK-DEFAULT-LABEL: define hidden void @test5()
 // CHECK-PROTECTED-LABEL: define hidden void @test5()
 // CHECK-HIDDEN-LABEL: define hidden void @test5()

diff --git a/clang/test/CodeGen/vla.c b/clang/test/CodeGen/vla.c
@@ -37,7 +37,6 @@ void g(int count) {
   int (*b)[][count];
 }
 
-// rdar://8403108
 // CHECK-LABEL: define{{.*}} void @f_8403108
 void f_8403108(unsigned x) {
   // CHECK: call ptr @llvm.stacksave.p0()
@@ -74,7 +73,6 @@ void test1(void) {
      function(1, bork[2]);
 }
 
-// rdar://8476159
 static int GLOB;
 int test2(int n)
 {
@@ -144,7 +142,6 @@ int test4(unsigned n, char (*p)[n][n+1][6]) {
   return p2 - p;
 }
 
-// rdar://11485774
 void test5(void)
 {
   // CHECK-LABEL: define{{.*}} void @test5(

diff --git a/clang/test/CodeGenCXX/2008-01-12-VecInit.cpp b/clang/test/CodeGenCXX/2008-01-12-VecInit.cpp
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -emit-llvm %s -o -
-// rdar://5685492
-
+// 
 typedef int __attribute__((vector_size(16))) v;
 v vt = {1, 2, 3, 4};
diff --git a/clang/test/CodeGenCXX/2008-05-07-CrazyOffsetOf.cpp b/clang/test/CodeGenCXX/2008-05-07-CrazyOffsetOf.cpp
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -triple=x86_64-unknown-linux -emit-llvm %s -o - | FileCheck %s
-// rdar://5914926
 
 struct bork {
   struct bork *next_local;

diff --git a/clang/test/CodeGenCXX/2009-08-05-ZeroInitWidth.cpp b/clang/test/CodeGenCXX/2009-08-05-ZeroInitWidth.cpp
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -emit-llvm %s -o -
-// rdar://7114564
 struct A {
   unsigned long long : (sizeof(unsigned long long) * 8) - 16;
 };

diff --git a/clang/test/CodeGenCXX/2009-08-11-VectorRetTy.cpp b/clang/test/CodeGenCXX/2009-08-11-VectorRetTy.cpp
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 %s -emit-llvm -o /dev/null
-// <rdar://problem/7096460>
 typedef void (*Func) ();
 typedef long long m64 __attribute__((__vector_size__(8), __may_alias__));
 static inline m64 __attribute__((__always_inline__, __nodebug__)) _mm_set1_pi16() {}

diff --git a/clang/test/CodeGenCXX/2009-10-27-crash.cpp b/clang/test/CodeGenCXX/2009-10-27-crash.cpp
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -emit-llvm %s -o /dev/null
-// Radar 7328944
 
 typedef struct
 {

diff --git a/clang/test/CodeGenCXX/2012-03-16-StoreAlign.cpp b/clang/test/CodeGenCXX/2012-03-16-StoreAlign.cpp
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -emit-llvm -o - -triple x86_64-apple-darwin %s | FileCheck %s
-// <rdar://problem/11043589>
 
 struct Length {
   Length(double v) {

diff --git a/clang/test/CodeGenCXX/align-avx-complete-objects.cpp b/clang/test/CodeGenCXX/align-avx-complete-objects.cpp
@@ -1,6 +1,5 @@
 // RUN: %clang_cc1 %std_cxx11-14 %s -O0 -triple=x86_64-apple-darwin -target-feature +avx2 -fmax-type-align=16 -emit-llvm -o - -Werror | FileCheck %s --check-prefixes=CHECK,PRE17
 // RUN: %clang_cc1 %std_cxx17- %s -O0 -triple=x86_64-apple-darwin -target-feature +avx2 -fmax-type-align=16 -emit-llvm -o - -Werror | FileCheck %s --check-prefixes=CHECK,CXX17
-// rdar://16254558
 
 typedef float AVX2Float __attribute__((__vector_size__(32)));
 

diff --git a/clang/test/CodeGenCXX/anonymous-union-member-initializer.cpp b/clang/test/CodeGenCXX/anonymous-union-member-initializer.cpp
@@ -1,6 +1,5 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -o - %s | FileCheck %s
 
-// rdar://8818236
 namespace rdar8818236 {
 struct S {
   char c2;

diff --git a/clang/test/CodeGenCXX/apple-kext-guard-variable.cpp b/clang/test/CodeGenCXX/apple-kext-guard-variable.cpp
@@ -1,7 +1,5 @@
 // RUN: %clang -target x86_64-apple-darwin10 -S -o %t.s -Wno-stdlibcxx-not-found -mkernel -Xclang -verify %s
 
-// rdar://problem/9143356
-
 int foo();
 void test() {
   static int y = 0;

diff --git a/clang/test/CodeGenCXX/apple-kext-linkage.cpp b/clang/test/CodeGenCXX/apple-kext-linkage.cpp
@@ -18,7 +18,7 @@ inline unsigned f(unsigned n) { return n == 0 ? 0 : n + f(n-1); }
 
 unsigned g(unsigned n) { return f(n); }
 
-// rdar://problem/10133200: give explicit instantiations external linkage in kernel mode
+// give explicit instantiations external linkage in kernel mode
 // CHECK-LABEL: define{{.*}} void @_Z3barIiEvv()
 template <typename T> void bar() {}
 template void bar<int>();

diff --git a/clang/test/CodeGenCXX/apple-kext-no-staticinit-section.cpp b/clang/test/CodeGenCXX/apple-kext-no-staticinit-section.cpp
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fapple-kext -fno-rtti -disable-O0-optnone -emit-llvm -o - %s | FileCheck %s
-// rdar://8825235
 /**
 1) Normally, global object construction code ends up in __StaticInit segment of text section
    .section __TEXT,__StaticInit,regular,pure_instructions

diff --git a/clang/test/CodeGenCXX/apple-kext.cpp b/clang/test/CodeGenCXX/apple-kext.cpp
@@ -22,8 +22,6 @@ D::~D() {}
 // CHECK: define{{.*}} void @_ZN18testBaseDestructor1DD1Ev({{.*}}) unnamed_addr #[[ATTR1:.*]] align 2 {
 
 // CHECK: define{{.*}} void @_ZN18testBaseDestructor1DD0Ev({{.*}}) unnamed_addr #[[ATTR1]] align 2 {
-
-// rdar://11241230
 namespace test0 {
   struct A { A(); ~A(); };
   A a;

diff --git a/clang/test/CodeGenCXX/arm.cpp b/clang/test/CodeGenCXX/arm.cpp
@@ -20,7 +20,6 @@ class bar : public foo {
 };
 
 // The global dtor needs the right calling conv with -fno-use-cxa-atexit
-// rdar://7817590
 bar baz;
 
 // PR9593
@@ -245,7 +244,6 @@ namespace test4 {
   }
 }
 
-// <rdar://problem/8386802>: don't crash
 namespace test5 {
   struct A {
     ~A();
@@ -356,7 +354,6 @@ namespace test8 {
   }
 }
 
-//   rdar://12836470
 // Use a larger-than-mandated array cookie when allocating an
 // array whose type is overaligned.
 namespace test9 {

diff --git a/clang/test/CodeGenCXX/arm64-constructor-return.cpp b/clang/test/CodeGenCXX/arm64-constructor-return.cpp
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 %s -triple=arm64-apple-ios7.0.0 -emit-llvm -o - | FileCheck %s
-// rdar://12162905
 
 struct S {
   S();

diff --git a/clang/test/CodeGenCXX/arm64.cpp b/clang/test/CodeGenCXX/arm64.cpp
@@ -2,7 +2,6 @@
 // RUN: %clang_cc1 %s -triple=arm64-apple-ios -emit-llvm -o - | FileCheck -check-prefix=CHECK-GLOBALS %s
 
 // __cxa_guard_acquire argument is 64-bit
-// rdar://11540122
 struct A {
   A();
 };
@@ -13,7 +12,6 @@ void f() {
 }
 
 // ARM64 uses the C++11 definition of POD.
-// rdar://12650514
 namespace test1 {
   // This class is POD in C++11 and cannot have objects allocated in
   // its tail-padding.
@@ -39,7 +37,7 @@ namespace std {
 }
 
 // ARM64 uses string comparisons for what would otherwise be
-// default-visibility weak RTTI.  rdar://12650568
+// default-visibility weak RTTI.
 namespace test2 {
   struct A {
     virtual void foo();

diff --git a/clang/test/CodeGenCXX/armv7k.cpp b/clang/test/CodeGenCXX/armv7k.cpp
@@ -5,7 +5,6 @@
 // RUN: %clang_cc1 %s -triple=arm64_32-apple-ios -emit-llvm -o - -target-abi darwinpcs | FileCheck -check-prefix=CHECK-GLOBALS %s
 
 // __cxa_guard_acquire argument is 64-bit
-// rdar://11540122
 struct A {
   A();
 };
@@ -16,7 +15,6 @@ void f() {
 }
 
 // ARM64 uses the C++11 definition of POD.
-// rdar://12650514
 namespace test1 {
   // This class is POD in C++11 and cannot have objects allocated in
   // its tail-padding.
@@ -42,7 +40,7 @@ namespace std {
 }
 
 // ARM64 uses string comparisons for what would otherwise be
-// default-visibility weak RTTI.  rdar://12650568
+// default-visibility weak RTTI.
 namespace test2 {
   struct A {
     virtual void foo();

diff --git a/clang/test/CodeGenCXX/asm.cpp b/clang/test/CodeGenCXX/asm.cpp
@@ -11,7 +11,7 @@ int foo(A);
 void bar(A &a)
 {
     // CHECK: call void asm
-    asm("" : : "r"(foo(a)) ); // rdar://8540491
+    asm("" : : "r"(foo(a)) );
     // CHECK: call void @_ZN1AD1Ev
 }
 

diff --git a/clang/test/CodeGenCXX/attr-used.cpp b/clang/test/CodeGenCXX/attr-used.cpp
@@ -1,6 +1,6 @@
 // RUN: %clang_cc1 -emit-llvm -triple %itanium_abi_triple -o - %s | FileCheck %s
 
-// <rdar://problem/8684363>: clang++ not respecting __attribute__((used)) on destructors
+// clang++ not respecting __attribute__((used)) on destructors
 struct X0 {
   // CHECK-DAG: define linkonce_odr {{.*}} @_ZN2X0C1Ev
   __attribute__((used)) X0() {}

diff --git a/clang/test/CodeGenCXX/block-byref-cxx-objc.cpp b/clang/test/CodeGenCXX/block-byref-cxx-objc.cpp
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 %s -std=c++11 -emit-llvm -triple %itanium_abi_triple -o - -fblocks -fexceptions | FileCheck %s
-// rdar://8594790
 
 struct A {
 	int x;
@@ -51,8 +50,6 @@ int testB() {
 // CHECK: define linkonce_odr hidden void @__destroy_helper_block_e{{4|8}}_{{20|32}}r{{24|40}}r(
 
 // CHECK: attributes #[[NOUNWIND_ATTR]] = {{{.*}}nounwind{{.*}}}
-
-// rdar://problem/11135650
 namespace test1 {
   struct A { int x; A(); ~A(); };
 

diff --git a/clang/test/CodeGenCXX/blocks-cxx11.cpp b/clang/test/CodeGenCXX/blocks-cxx11.cpp
@@ -3,7 +3,6 @@
 template <class T> void takeItByValue(T);
 void takeABlock(void (^)());
 
-// rdar://problem/11022704
 namespace test_int {
   void test() {
     const int x = 100;
@@ -81,7 +80,6 @@ namespace test_complex_int_ref_mutable {
   }
 }
 
-// rdar://13295759
 namespace test_block_in_lambda {
   void takeBlock(void (^block)());
 

diff --git a/clang/test/CodeGenCXX/blocks.cpp b/clang/test/CodeGenCXX/blocks.cpp
@@ -89,7 +89,6 @@ namespace test2 {
   // CHECK: call void @_ZN5test21BD1Ev(
 }
 
-// rdar://problem/9334739
 // Make sure we mark destructors for parameters captured in blocks.
 namespace test3 {
   struct A {
@@ -106,7 +105,6 @@ namespace test3 {
   }
 }
 
-// rdar://problem/9971485
 namespace test4 {
   struct A {
     A();
@@ -215,8 +213,7 @@ namespace test7 {
 }
 
 namespace test8 {
-  // <rdar://problem/10832617>: failure to capture this after skipping rebuild
-  // of the 'this' pointer.
+  // failure to capture this after skipping rebuild of the 'this' pointer.
   struct X {
     int x;
 
@@ -229,7 +226,6 @@ namespace test8 {
   template int X::foo<int>();
 }
 
-// rdar://13459289
 namespace test9 {
   struct B {
     void *p;

diff --git a/clang/test/CodeGenCXX/class-layout.cpp b/clang/test/CodeGenCXX/class-layout.cpp
@@ -78,8 +78,8 @@ namespace Test6 {
   E *e;
 }
 
-// <rdar://problem/11324125>: Make sure this doesn't crash.  (It's okay
-// if we start rejecting it at some point.)
+// Make sure this doesn't crash. (It's okay if we start rejecting it at some
+// point.)
 namespace Test7 {
   #pragma pack (1)
   class A {};

diff --git a/clang/test/CodeGenCXX/conditional-gnu-ext.cpp b/clang/test/CodeGenCXX/conditional-gnu-ext.cpp
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -triple x86_64-unknown-unknown -emit-llvm -o - %s | FileCheck %s
-// rdar: // 8353567
 // pr7726
 
 extern "C" int printf(...);
@@ -9,7 +8,6 @@ void test0() {
     printf("%p\n", (void *)0xdeadbeef ? : (void *)0xaaaaaa);
 }
 
-// rdar://8446940
 namespace radar8446940 {
 extern "C" void abort();
 

diff --git a/clang/test/CodeGenCXX/copy-assign-volatile-synthesis.cpp b/clang/test/CodeGenCXX/copy-assign-volatile-synthesis.cpp
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -emit-llvm %s -o - | FileCheck %s
-// rdar://9894548
 
 typedef unsigned long word_t;
 typedef unsigned long u64_t;

diff --git a/clang/test/CodeGenCXX/copy-constructor-synthesis.cpp b/clang/test/CodeGenCXX/copy-constructor-synthesis.cpp
@@ -171,7 +171,6 @@ void f(B b1) {
 // CHECK-NEXT: ret void
 }
 
-// rdar://13816940
 // Test above because things get weirdly re-ordered.
 namespace rdar13816940 {
   struct A {

diff --git a/clang/test/CodeGenCXX/cxx-block-objects.cpp b/clang/test/CodeGenCXX/cxx-block-objects.cpp
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 %s -fblocks -triple x86_64-apple-darwin -emit-llvm -o - | FileCheck %s
-// rdar://8594790
 
 extern "C" {
 extern "C" void *_Block_copy(const void *aBlock);

diff --git a/clang/test/CodeGenCXX/cxx11-special-members.cpp b/clang/test/CodeGenCXX/cxx11-special-members.cpp
@@ -28,7 +28,6 @@ void f2(B &x, B &y) {
 // CHECK: define {{.*}} @_ZN1BaSEOS_(
 // CHECK: call {{.*}} @_ZN1AaSERKS_(
 
-// rdar://18309639 {
 template<int> struct C { C() = default; };
 struct D {
   C<0> c;

diff --git a/clang/test/CodeGenCXX/cxx11-trivial-initializer-struct.cpp b/clang/test/CodeGenCXX/cxx11-trivial-initializer-struct.cpp
@@ -7,8 +7,6 @@
 // RUN: diff %t-c++11.ll  %t-c++17.ll
 // RUN: diff %t.ll  %t-c++03.ll
 
-// rdar://12897704
-
 struct sAFSearchPos {
     unsigned char *pos;
     unsigned char count;

diff --git a/clang/test/CodeGenCXX/debug-info-byval.cpp b/clang/test/CodeGenCXX/debug-info-byval.cpp
@@ -1,7 +1,6 @@
 // FIXME: Check IR rather than asm, then triple is not needed.
 // RUN: %clang --target=%itanium_abi_triple -g -S %s -o - | FileCheck %s
 // Test to check presence of debug info for byval parameter.
-// Radar 8350436.
 class DAG {
 public:
   int i;

diff --git a/clang/test/CodeGenCXX/debug-info-decl-nested.cpp b/clang/test/CodeGenCXX/debug-info-decl-nested.cpp
@@ -7,8 +7,6 @@
 // definition of the constructor for OuterClass. The declaration is
 // necessary so the backend can emit the DW_AT_specification attribute
 // for the definition.
-//
-// rdar://problem/13116508
 
 class Foo;
 class OuterClass

diff --git a/clang/test/CodeGenCXX/debug-info-enum.cpp b/clang/test/CodeGenCXX/debug-info-enum.cpp
@@ -29,7 +29,6 @@ void foo() {
 }
 
 namespace test2 {
-// rdar://8195980
 // CHECK: [[E2]] = !DICompositeType(tag: DW_TAG_enumeration_type, name: "e"
 // CHECK-SAME:                      scope: [[TEST2:![0-9]+]]
 // CHECK-SAME:                      elements: [[TEST1_ENUMS]]

diff --git a/clang/test/CodeGenCXX/debug-info-indirect-field-decl.cpp b/clang/test/CodeGenCXX/debug-info-indirect-field-decl.cpp
@@ -1,8 +1,6 @@
 // RUN: %clang_cc1 -emit-llvm -debug-info-kind=limited -triple x86_64-apple-darwin %s -o - | FileCheck %s
 //
 // Test that indirect field decls are handled gracefully.
-// rdar://problem/16348575
-//
 template <class T, int T::*ptr> class Foo {  };
 
 struct Bar {

diff --git a/clang/test/CodeGenCXX/debug-info-method-spec.cpp b/clang/test/CodeGenCXX/debug-info-method-spec.cpp
@@ -1,6 +1,5 @@
 // FIXME: Check IR rather than asm, then triple is not needed.
 // RUN: %clang --target=%itanium_abi_triple -fverbose-asm -g -S %s -o - | grep DW_AT_specification
-// Radar 9254491
 class A {
 public:
   void doSomething(int i) { ++i; }

diff --git a/clang/test/CodeGenCXX/debug-info-method2.cpp b/clang/test/CodeGenCXX/debug-info-method2.cpp
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -x c++ -debug-info-kind=limited -S -emit-llvm < %s | FileCheck %s
-// rdar://10336845
 // Preserve type qualifiers in -flimit-debug-info mode.
 
 // CHECK:  DW_TAG_const_type

diff --git a/clang/test/CodeGenCXX/debug-info-scope.cpp b/clang/test/CodeGenCXX/debug-info-scope.cpp
@@ -1,8 +1,6 @@
 // RUN: %clang_cc1 -debug-info-kind=limited -gno-column-info -std=c++11 -emit-llvm %s -o -| FileCheck %s
 //
 // Two variables with the same name in subsequent if staments need to be in separate scopes.
-//
-// rdar://problem/14024005
 
 int src();
 

diff --git a/clang/test/CodeGenCXX/debug-info-template-fwd.cpp b/clang/test/CodeGenCXX/debug-info-template-fwd.cpp
@@ -5,7 +5,6 @@
 // CHECK: !DICompositeType(tag: DW_TAG_structure_type, name: "Derived<int>"
 // CHECK-NOT:              DIFlagFwdDecl
 // CHECK-SAME:             ){{$}}
-// rdar://problem/15931354
 template <class A> class Derived;
 
 template <class A> class Base {

diff --git a/clang/test/CodeGenCXX/debug-info-this.cpp b/clang/test/CodeGenCXX/debug-info-this.cpp
@@ -1,5 +1,4 @@
 // RUN: %clang -emit-llvm -g -S %s -o - | FileCheck %s
-// Radar 9239104
 class Class
 {
 public:

diff --git a/clang/test/CodeGenCXX/debug-info-zero-length-arrays.cpp b/clang/test/CodeGenCXX/debug-info-zero-length-arrays.cpp
@@ -1,5 +1,4 @@
 // RUN: %clang -target x86_64-unknown-unknown -fverbose-asm -g -O0 -S -emit-llvm %s -o - | FileCheck %s
-// <rdar://problem/12566646>
 
 class A {
   int x[];

diff --git a/clang/test/CodeGenCXX/delete-two-arg.cpp b/clang/test/CodeGenCXX/delete-two-arg.cpp
@@ -49,7 +49,6 @@ namespace test2 {
   }
 }
 
-// rdar://problem/8913519
 namespace test3 {
   struct A {
     int x;

diff --git a/clang/test/CodeGenCXX/derived-to-base-conv.cpp b/clang/test/CodeGenCXX/derived-to-base-conv.cpp
@@ -72,7 +72,6 @@ void test1(Derived bb) {
 
 // Don't crash after devirtualizing a derived-to-base conversion
 // to an empty base allocated at offset zero.
-// rdar://problem/11993704
 class Test2a {};
 class Test2b final : public virtual Test2a {};
 void test2(Test2b &x) {

diff --git a/clang/test/CodeGenCXX/duplicate-mangled-name.cpp b/clang/test/CodeGenCXX/duplicate-mangled-name.cpp
@@ -5,7 +5,6 @@
 
 #ifdef TEST1
 
-// rdar://15522601
 class MyClass {
  static void meth();
 };

diff --git a/clang/test/CodeGenCXX/eh.cpp b/clang/test/CodeGenCXX/eh.cpp
@@ -64,8 +64,6 @@ void test4() {
 // CHECK:        call void @__cxa_rethrow() [[NR]]
 // CHECK-NEXT:   unreachable
 
-
-// rdar://problem/7696549
 namespace test5 {
   struct A {
     A();
@@ -172,7 +170,6 @@ namespace test8 {
 }
 
 // Constructor function-try-block must rethrow on fallthrough.
-// rdar://problem/7696603
 namespace test9 {
   void opaque();
 
@@ -232,7 +229,6 @@ namespace test10 {
 }
 
 // __cxa_begin_catch returns pointers by value, even when catching by reference
-// <rdar://problem/8212123>
 namespace test11 {
   void opaque();
 
@@ -336,7 +332,6 @@ namespace test13 {
   }
 }
 
-// rdar://problem/8231514
 namespace test14 {
   struct A { ~A(); };
   struct B { ~B(); };
@@ -354,7 +349,6 @@ namespace test14 {
   }
 }
 
-// rdar://problem/8231514
 // JumpDests shouldn't get confused by scopes that aren't normal cleanups.
 namespace test15 {
   struct A { ~A(); };

diff --git a/clang/test/CodeGenCXX/exceptions.cpp b/clang/test/CodeGenCXX/exceptions.cpp
@@ -75,7 +75,6 @@ namespace test1 {
     return new A(B().x);
   }
 
-  //   rdar://11904428
   //   Terminate landing pads should call __cxa_begin_catch first.
   // CHECK98:      define linkonce_odr hidden void @__clang_call_terminate(ptr %0) [[NI_NR_NUW:#[0-9]+]] comdat
   // CHECK98-NEXT:   [[T0:%.*]] = call ptr @__cxa_begin_catch(ptr %0) [[NUW:#[0-9]+]]
@@ -214,7 +213,6 @@ namespace test3 {
     return new(foo(),bar()) A(5);
   }
 
-  // rdar://problem/8439196
   A *b(bool cond) {
 
     // CHECK:    define{{( dso_local)?}} ptr @_ZN5test31bEb(i1 zeroext

diff --git a/clang/test/CodeGenCXX/global-block-literal-helpers.cpp b/clang/test/CodeGenCXX/global-block-literal-helpers.cpp
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -std=c++11 -emit-llvm -fblocks -o - -triple x86_64-apple-darwin10 %s | FileCheck %s
-// rdar://11343499
 
 namespace N {
   typedef void (^BL)();

diff --git a/clang/test/CodeGenCXX/global-init.cpp b/clang/test/CodeGenCXX/global-init.cpp
@@ -40,7 +40,6 @@ C c;
 // CHECK: call i32 @__cxa_atexit(ptr @_ZN1DD1Ev, ptr @d, ptr @__dso_handle)
 D d;
 
-// <rdar://problem/7458115>
 namespace test1 {
   int f();
   const int x = f();   // This has side-effects and gets emitted immediately.
@@ -52,7 +51,6 @@ namespace test1 {
   // All of these initializers end up delayed, so we check them later.
 }
 
-// <rdar://problem/8246444>
 namespace test2 {
   struct allocator { allocator(); ~allocator(); };
   struct A { A(const allocator &a = allocator()); ~A(); };
@@ -203,7 +201,7 @@ namespace test7 {
 // CHECK:   call void [[TEST1_Y_INIT]]
 // CHECK:   call void [[TEST1_Z_INIT]]
 
-// rdar://problem/8090834: this should be nounwind
+// this should be nounwind
 // CHECK-NOEXC: define internal void @_GLOBAL__sub_I_global_init.cpp() [[NUW:#[0-9]+]] section "__TEXT,__StaticInit,regular,pure_instructions" {
 // CHECK-NOEXC: attributes [[NUW]] = { noinline nounwind{{.*}} }
 

diff --git a/clang/test/CodeGenCXX/globalinit-loc.cpp b/clang/test/CodeGenCXX/globalinit-loc.cpp
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -emit-llvm -debug-info-kind=limited %s -o - | FileCheck %s
-// rdar://problem/14985269.
 //
 // Verify that the global init helper function does not get associated
 // with any source location.

diff --git a/clang/test/CodeGenCXX/implicit-copy-constructor.cpp b/clang/test/CodeGenCXX/implicit-copy-constructor.cpp
@@ -72,7 +72,6 @@ void test_X2()
   pdata.f0( new impl(*i));
 }
 
-// rdar://problem/9598341
 namespace test3 {
   struct A { A(const A&); A&operator=(const A&); };
   struct B { A a; unsigned : 0; };

diff --git a/clang/test/CodeGenCXX/inheriting-constructor-cleanup.cpp b/clang/test/CodeGenCXX/inheriting-constructor-cleanup.cpp
@@ -2,7 +2,6 @@
 // RUN: %clang_cc1 -triple x86_64-darwin -std=c++11 -fcxx-exceptions -fexceptions -emit-llvm -o - %s | FileCheck %s --check-prefix=EXCEPTIONS
 
 // PR36748
-// rdar://problem/45805151
 
 // Classes to verify order of destroying function parameters.
 struct S1 {

diff --git a/clang/test/CodeGenCXX/inline-functions.cpp b/clang/test/CodeGenCXX/inline-functions.cpp
@@ -26,7 +26,6 @@ void B<char>::f() { }
 // MSVCCOMPAT-LABEL: define dso_local void @"?f@@YAXXZ"
 void f() { }
 
-// <rdar://problem/8740363>
 inline void f1(int);
 
 // NORMAL-LABEL: define linkonce_odr void @_Z2f1i

diff --git a/clang/test/CodeGenCXX/instantiate-blocks.cpp b/clang/test/CodeGenCXX/instantiate-blocks.cpp
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -fblocks -emit-llvm -o - %s
-// rdar : // 6182276
 
 template <typename T> T foo(T t)
 {

diff --git a/clang/test/CodeGenCXX/internal-linkage.cpp b/clang/test/CodeGenCXX/internal-linkage.cpp
@@ -17,7 +17,6 @@ Anon anon1;
 // CHECK: @anon2 = internal global
 X<Anon> anon2;
 
-// rdar: // 8071804
 char const * const xyzzy = "Hello, world!";
 extern char const * const xyzzy;
 

diff --git a/clang/test/CodeGenCXX/lambda-expressions.cpp b/clang/test/CodeGenCXX/lambda-expressions.cpp
@@ -201,7 +201,6 @@ void h() {
   A (*h)() = [] { return A(); };
 }
 
-// <rdar://problem/12778708>
 struct XXX {};
 void nestedCapture () {
   XXX localKey;

diff --git a/clang/test/CodeGenCXX/lpad-linetable.cpp b/clang/test/CodeGenCXX/lpad-linetable.cpp
@@ -1,6 +1,5 @@
 // RUN: %clang_cc1  -fcxx-exceptions -fexceptions -emit-llvm -debug-info-kind=limited -triple x86_64-apple-darwin10 -std=c++98 %s -o - | FileCheck %s
 // The landing pad should have the line number of the closing brace of the function.
-// rdar://problem/13888152
 // CHECK: ret i32
 // CHECK: landingpad {{.*}}
 // CHECK-NEXT: !dbg ![[LPAD:[0-9]+]]

diff --git a/clang/test/CodeGenCXX/mangle-template.cpp b/clang/test/CodeGenCXX/mangle-template.cpp
@@ -169,7 +169,6 @@ namespace test12 {
   }
 }
 
-// rdar://problem/12072531
 // Test the boundary condition of minimal signed integers.
 namespace test13 {
   template <char c> char returnChar() { return c; }

diff --git a/clang/test/CodeGenCXX/mangle.cpp b/clang/test/CodeGenCXX/mangle.cpp
@@ -395,7 +395,6 @@ namespace test2 {
   // CHECK-LABEL: define linkonce_odr noundef i32 @_ZN5test211read_memberINS_1AEEEDtptcvPT_Li0E6memberERS2_(
 }
 
-// rdar://problem/9280586
 namespace test3 {
   struct AmbiguousBase { int ab; };
   struct Path1 : AmbiguousBase { float p; };
@@ -477,7 +476,6 @@ namespace test9 {
   }
 }
 
-// <rdar://problem/7825453>
 namespace test10 {
   template <char P1> struct S {};
   template <char P2> void f(struct S<false ? 'a' : P2> ) {}
@@ -527,7 +525,6 @@ namespace test14 {
   }
 }
 
-// rdar://problem/8204122
 namespace test15 {
   enum E { e = 3 };
   template <int I> struct S {};
@@ -538,7 +535,6 @@ namespace test15 {
   template void f<7>(S<7 + e>);
 }
 
-// rdar://problem/8302148
 namespace test17 {
   template <int N> struct A {};
 
@@ -583,7 +579,6 @@ namespace test18 {
   // CHECK-LABEL: define weak_odr void @_ZN6test181fINS_1AEEEvNS_1SIXadsrT_onanEEE
 }
 
-// rdar://problem/8332117
 namespace test19 {
   struct A {
     template <typename T> int f();
@@ -622,7 +617,6 @@ namespace test20 {
   template void test1<int>(decltype(f<>(int())));
 }
 
-// rdar:// 8620510
 namespace test21 {
   // CHECK-LABEL: define{{.*}} void @_ZN6test2112vla_arg_funcEiPA_i(
   void vla_arg_func(int X, int a[X][X]) {}
@@ -633,7 +627,6 @@ namespace test22 {
   void f(decltype(nullptr)) { }
 }
 
-// rdar://problem/8913416
 namespace test23 {
   typedef void * const vpc;
 
@@ -659,7 +652,6 @@ namespace test24 {
   }
 }
 
-// rdar://problem/8806641
 namespace test25 {
   template <void (*fn)()> struct A {
     static void call() { fn(); }

diff --git a/clang/test/CodeGenCXX/member-alignment.cpp b/clang/test/CodeGenCXX/member-alignment.cpp
@@ -19,8 +19,6 @@
 // RUN: %clang_cc1 -emit-llvm -triple x86_64-unknown-windows-msvc %s -o - | \
 // RUN: FileCheck -check-prefix CHECK-MSVC %s
 
-// rdar://7268289
-
 class t {
 public:
   virtual void foo(void);

diff --git a/clang/test/CodeGenCXX/member-function-pointers.cpp b/clang/test/CodeGenCXX/member-function-pointers.cpp
@@ -240,9 +240,8 @@ namespace test9 {
   }
 }
 
-// rdar://problem/10815683 - Verify that we can emit reinterprets of
-// member pointers as constant initializers.  For added trickiness,
-// we also add some non-trivial adjustments.
+// Verify that we can emit reinterprets of member pointers as constant
+// initializers. For added trickiness, we also add some non-trivial adjustments.
 namespace test10 {
   struct A {
     int nonEmpty;

diff --git a/clang/test/CodeGenCXX/microsoft-uuidof-mangling.cpp b/clang/test/CodeGenCXX/microsoft-uuidof-mangling.cpp
@@ -1,6 +1,5 @@
 // RUN: %clang_cc1 -emit-llvm %s -o - -triple x86_64-unknown-unknown -fms-extensions | FileCheck %s --check-prefixes=CHECK,CHECK-V12
 // RUN: %clang_cc1 -emit-llvm %s -o - -triple x86_64-unknown-unknown -fms-extensions -fclang-abi-compat=11 | FileCheck %s --check-prefixes=CHECK,CHECK-V11
-// rdar://17784718
 
 typedef struct _GUID
 {

diff --git a/clang/test/CodeGenCXX/ms_struct.cpp b/clang/test/CodeGenCXX/ms_struct.cpp
@@ -1,7 +1,5 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm %s -o - | FileCheck %s
 
-// rdar://20636558
-
 #pragma GCC diagnostic ignored "-Wincompatible-ms-struct"
 #define ATTR __attribute__((__ms_struct__))
 

diff --git a/clang/test/CodeGenCXX/new-overflow.cpp b/clang/test/CodeGenCXX/new-overflow.cpp
@@ -1,7 +1,5 @@
 // RUN: %clang_cc1 -std=c++14 -triple i386-unknown-unknown %s -emit-llvm -o - | FileCheck %s
 
-// rdar://problem/9246208
-
 // Basic test.
 namespace test0 {
   struct A {

diff --git a/clang/test/CodeGenCXX/no-opt-volatile-memcpy.cpp b/clang/test/CodeGenCXX/no-opt-volatile-memcpy.cpp
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -triple=x86_64-apple-darwin  -emit-llvm -o - %s | FileCheck %s
-// rdar://11861085
 
 struct s {
   char filler [128];

diff --git a/clang/test/CodeGenCXX/noexcept.cpp b/clang/test/CodeGenCXX/noexcept.cpp
@@ -1,6 +1,5 @@
 // RUN: %clang_cc1 %s -triple=x86_64-apple-darwin10 -emit-llvm -o - -fcxx-exceptions -fexceptions -std=c++11 | FileCheck %s
 
-// rdar://11904428
 //   Ensure that we call __cxa_begin_catch before calling
 //   std::terminate in a noexcept function.
 namespace test0 {

diff --git a/clang/test/CodeGenCXX/nrvo.cpp b/clang/test/CodeGenCXX/nrvo.cpp
@@ -760,7 +760,6 @@ X test5() { // http://wg21.link/p2025r2#ex-14
 }
 #endif
 
-// rdar://problem/10430868
 // CHECK-LABEL: @_Z5test6v(
 // CHECK-NEXT:  entry:
 // CHECK-NEXT:    [[RESULT_PTR:%.*]] = alloca ptr, align 4

diff --git a/clang/test/CodeGenCXX/operator-new.cpp b/clang/test/CodeGenCXX/operator-new.cpp
@@ -14,7 +14,7 @@ void f1() {
   new teste();
 }
 
-// rdar://5739832 - operator new should check for overflow in multiply.
+// operator new should check for overflow in multiply.
 void *f2(long N) {
   return new int[N];
 

diff --git a/clang/test/CodeGenCXX/pragma-pack-2.cpp b/clang/test/CodeGenCXX/pragma-pack-2.cpp
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -triple x86_64-apple-macosx10.7.2 %s -emit-llvm -o - | FileCheck %s
-// <rdar://problem/10551376>
 
 struct FOO {
 	unsigned int x;

diff --git a/clang/test/CodeGenCXX/predefined-expr.cpp b/clang/test/CodeGenCXX/predefined-expr.cpp
@@ -538,7 +538,6 @@ int main() {
   return 0;
 }
 
-// rdar://19065361
 class XXX {
   XXX();
   ~XXX();

diff --git a/clang/test/CodeGenCXX/reference-in-block-args.cpp b/clang/test/CodeGenCXX/reference-in-block-args.cpp
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -fblocks %s -emit-llvm -o %t
-// rdar: // 8041962
 
 extern "C" int printf(const char*, ...);
 

diff --git a/clang/test/CodeGenCXX/reference-in-blocks.cpp b/clang/test/CodeGenCXX/reference-in-blocks.cpp
@@ -9,7 +9,6 @@ T _i;
         T get() {return _i;};
 };
 
-// rdar: // 7495203
 class A {
     public:
 	A() : field(10), d1(3.14) {}
@@ -25,7 +24,7 @@ class A {
 void A::F()
     {
 	__block A &tlc = *this;
-	// crashed in code gen (radar 7495203)
+	// crashed in code gen
         ^{ tlc.S(); }();
     }
 

diff --git a/clang/test/CodeGenCXX/reference-init.cpp b/clang/test/CodeGenCXX/reference-init.cpp
@@ -24,7 +24,6 @@ namespace PR5911 {
   int test() { return f(iarr); }
 }
 
-// radar 7574896
 struct Foo { int foo; };
 Foo& ignoreSetMutex = *(new Foo);
 

diff --git a/clang/test/CodeGenCXX/rtti-linkage.cpp b/clang/test/CodeGenCXX/rtti-linkage.cpp
@@ -152,13 +152,11 @@ void t3() {
   (void) typeid(T<2>);
 }
 
-// rdar://problem/8778973
 struct T4 {};
 void t4(const T4 *ptr) {
   const void *value = &typeid(ptr);
 }
 
-// rdar://16265084
 void t5() {
   struct A {};
   const void *value = &typeid(A);

diff --git a/clang/test/CodeGenCXX/runtimecc.cpp b/clang/test/CodeGenCXX/runtimecc.cpp
@@ -7,8 +7,6 @@
 // translation units to define these runtime functions (or, equivalently,
 // for us to get LTO'ed with such a translation unit), and then the
 // mismatch will kill us.
-//
-// rdar://12818655
 
 // CHECK: [[A:%.*]] = type { double }
 

diff --git a/clang/test/CodeGenCXX/specialized-static-data-mem-init.cpp b/clang/test/CodeGenCXX/specialized-static-data-mem-init.cpp
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 %s -emit-llvm -triple %itanium_abi_triple -o - | FileCheck %s
-// rdar: // 8562966
 // pr8409
 
 // CHECK: @_ZN1CIiE11needs_guardE = linkonce_odr {{(dso_local )?}}global

diff --git a/clang/test/CodeGenCXX/static-init.cpp b/clang/test/CodeGenCXX/static-init.cpp
@@ -91,7 +91,6 @@ namespace union_static_local {
   }
 }
 
-// rdar://problem/11091093
 //   Static variables should be consistent across constructor
 //   or destructor variants.
 namespace test2 {

diff --git a/clang/test/CodeGenCXX/stmtexpr.cpp b/clang/test/CodeGenCXX/stmtexpr.cpp
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -Wno-unused-value -triple i686-linux-gnu -emit-llvm -o - %s | FileCheck %s
-// rdar: //8540501
 extern "C" int printf(...);
 extern "C" void abort();
 
@@ -64,7 +63,6 @@ int main()
   return foo(1).i-1;
 }
 
-// rdar: // 8600553
 int a[128];
 int* foo5() {
 // CHECK-NOT: memcpy
@@ -73,7 +71,6 @@ int* foo5() {
   return (({ a; }));
 }
 
-// <rdar://problem/14074868>
 // Make sure this doesn't crash.
 int foo5(bool b) {
   int y = 0;

diff --git a/clang/test/CodeGenCXX/template-dependent-bind-temporary.cpp b/clang/test/CodeGenCXX/template-dependent-bind-temporary.cpp
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 %s -emit-llvm -triple %itanium_abi_triple -o - | FileCheck %s
-// rdar: //8620524
 // PR7851
 struct string {
   string (const string& );

diff --git a/clang/test/CodeGenCXX/temporaries.cpp b/clang/test/CodeGenCXX/temporaries.cpp
@@ -495,7 +495,6 @@ namespace Elision {
     // CHECK:      call void @_ZN7Elision1AD1Ev(ptr {{[^,]*}} [[X]])
   }
 
-  // rdar://problem/8433352
   // CHECK: define{{.*}} void @_ZN7Elision5test5Ev(ptr noalias sret([[A]]) align 8
   struct B { A a; B(); };
   A test5() {

diff --git a/clang/test/CodeGenCXX/throw-expressions.cpp b/clang/test/CodeGenCXX/throw-expressions.cpp
@@ -9,7 +9,6 @@ int test2() {
   return val ? throw val : val;
 }
 
-// rdar://problem/8608801
 void test3() {
   throw false;
 }

diff --git a/clang/test/CodeGenCXX/thunk-linkonce-odr.cpp b/clang/test/CodeGenCXX/thunk-linkonce-odr.cpp
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 %s -triple i386-unknown-unknown -emit-llvm -o - | FileCheck %s
-// <rdar://problem/7929157> & <rdar://problem/8104369>
 
 struct A {
   virtual int f() { return 1; }

diff --git a/clang/test/CodeGenCXX/type_visibility.cpp b/clang/test/CodeGenCXX/type_visibility.cpp
@@ -12,8 +12,6 @@
 #define TYPE_PROTECTED __attribute__((type_visibility("protected")))
 #define TYPE_DEFAULT __attribute__((type_visibility("default")))
 
-// type_visibility is rdar://11880378
-
 #if !__has_attribute(type_visibility)
 #error No type_visibility attribute!
 #endif

diff --git a/clang/test/CodeGenCXX/uncode-string.cpp b/clang/test/CodeGenCXX/uncode-string.cpp
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -o - %s | FileCheck %s
-// rdar://8360841
 
 wchar_t s[] = L"\u2722";
 

diff --git a/clang/test/CodeGenCXX/unknown-anytype.cpp b/clang/test/CodeGenCXX/unknown-anytype.cpp
@@ -8,7 +8,6 @@
 // x86-64 is the special case here because of its variadic convention.
 // We want to ensure that it always uses a variadic convention even if
 // other platforms do not.
-// rdar://13731520
 
 int test0() {
   extern __unknown_anytype test0_any;

diff --git a/clang/test/CodeGenCXX/value-init.cpp b/clang/test/CodeGenCXX/value-init.cpp
@@ -196,7 +196,6 @@ void f(const C& c) {
 
 }
 
-// rdar://problem/9355931
 namespace test6 {
   struct A { A(); A(int); };
 

diff --git a/clang/test/CodeGenCXX/varargs.cpp b/clang/test/CodeGenCXX/varargs.cpp
@@ -1,6 +1,5 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm %s -o - | FileCheck %s
 
-// rdar://7309675
 // PR4678
 namespace test0 {
   // test1 should be compmiled to be a varargs function in the IR even

diff --git a/clang/test/CodeGenCXX/vector-splat-conversion.cpp b/clang/test/CodeGenCXX/vector-splat-conversion.cpp
@@ -4,7 +4,6 @@ typedef __attribute__((__ext_vector_type__(8))) float vector_float8;
 
 typedef vector_float8 float8;
 
-// rdar://20000762
 // CHECK-LABEL: define{{.*}} void @_Z23MandelbrotPolyCalcSIMD8v
 void MandelbrotPolyCalcSIMD8() {
   constexpr float8 v4 = 4.0;  // value to compare against abs(z)^2, to see if bounded

diff --git a/clang/test/CodeGenCXX/visibility-hidden-extern-templates.cpp b/clang/test/CodeGenCXX/visibility-hidden-extern-templates.cpp
@@ -12,7 +12,6 @@ extern template struct X<int>;
 template struct X<int>;
 extern template struct X<char>;
 
-// <rdar://problem/8109763>
 void test_X(X<int> xi, X<char> xc) {
   // CHECK-LABEL: define weak_odr hidden {{.*}}void @_ZN1XIiE1fEv
   xi.f();

diff --git a/clang/test/CodeGenCXX/visibility-inlines-hidden.cpp b/clang/test/CodeGenCXX/visibility-inlines-hidden.cpp
@@ -65,7 +65,6 @@ void use(X0 *x0, X1<int> *x1, X2 *x2, X1<float> *x3) {
   x3->f2();
 }
 
-// rdar://problem/8614470
 namespace test1 {
   struct __attribute__((visibility("default"))) A {
     inline void foo();

diff --git a/clang/test/CodeGenCXX/visibility-ms-compat.cpp b/clang/test/CodeGenCXX/visibility-ms-compat.cpp
@@ -5,8 +5,6 @@
 // The two visibility options above are how we translate
 // -fvisibility-ms-compat in the driver.
 
-// rdar://13079314
-
 #define HIDDEN __attribute__((visibility("hidden")))
 #define PROTECTED __attribute__((visibility("protected")))
 #define DEFAULT __attribute__((visibility("default")))

diff --git a/clang/test/CodeGenCXX/visibility.cpp b/clang/test/CodeGenCXX/visibility.cpp
@@ -271,7 +271,6 @@ namespace Test5 {
   }
 }
 
-// <rdar://problem/8091955>
 namespace Test6 {
   struct HIDDEN foo {
     foo() { }
@@ -409,7 +408,6 @@ namespace Test14 {
   struct A *test() { return var; }
 }
 
-// rdar://problem/8613093
 namespace Test15 {
   struct A {};
   template <class T> struct Temp {
@@ -572,7 +570,6 @@ namespace Test20 {
     A<1>::test3();
   }
 
-  // <rdar://problem/8778497>
   // But we should assume that an unknown specialization has the
   // explicit visibility settings of the template.
   template <class T> struct B {
@@ -602,7 +599,6 @@ namespace test21 {
   template void A<en>::foo();
 }
 
-// rdar://problem/9616154
 // Visibility on explicit specializations should take precedence.
 namespace test22 {
   class A1 {};

diff --git a/clang/test/CodeGenCXX/vla.cpp b/clang/test/CodeGenCXX/vla.cpp
@@ -15,7 +15,6 @@ int f() {
   return sizeof a;
 }
 
-// rdar://problem/9506377
 void test0(void *array, int n) {
   // CHECK-LABEL: define{{.*}} void @_Z5test0Pvi(
   // AMDGCN:        [[ARRAY0:%.*]] = alloca ptr, align 8, addrspace(5)

diff --git a/clang/test/CodeGenCXX/volatile.cpp b/clang/test/CodeGenCXX/volatile.cpp
@@ -2,7 +2,7 @@
 // RUN: %clang_cc1 %s -triple=x86_64-apple-darwin10 -emit-llvm -std=c++11 -o - | FileCheck -check-prefix=CHECK -check-prefix=CHECK11 %s
 
 // Check that IR gen doesn't try to do an lvalue-to-rvalue conversion
-// on a volatile reference result.  rdar://problem/8338198
+// on a volatile reference result.
 namespace test0 {
   struct A {
     A(const A& t);

diff --git a/clang/test/CodeGenCXX/vtable-debug-info.cpp b/clang/test/CodeGenCXX/vtable-debug-info.cpp
@@ -1,5 +1,4 @@
 // RUN: %clang -emit-llvm -S -g %s -o /dev/null
-// Radar 8730409
 // XFAIL: target={{.*-windows-msvc}}
 
 // FIXME: This test crashes on *-pc-win32

diff --git a/clang/test/CodeGenCXX/vtable-layout.cpp b/clang/test/CodeGenCXX/vtable-layout.cpp
@@ -1839,7 +1839,6 @@ C* C::f() { return 0; }
 
 }
 
-// rdar://problem/10959710
 namespace Test38 {
   struct A {
     virtual void *foo();

diff --git a/clang/test/CodeGenCXX/vtable-linkage-address-space.cpp b/clang/test/CodeGenCXX/vtable-linkage-address-space.cpp
@@ -97,7 +97,7 @@ void use_F() {
 // CHECK-DAG: @_ZTV1B = external unnamed_addr addrspace(1) constant
 
 // C has no key function, so its vtable should have weak_odr linkage
-// and hidden visibility (rdar://problem/7523229).
+// and hidden visibility
 // CHECK-DAG: @_ZTV1C = linkonce_odr unnamed_addr addrspace(1) constant {{.*}}, comdat, align 8{{$}}
 // CHECK-DAG: @_ZTS1C = linkonce_odr addrspace(1) constant {{.*}}, comdat, align 1{{$}}
 // CHECK-DAG: @_ZTI1C = linkonce_odr addrspace(1) constant {{.*}}, comdat, align 8{{$}}

diff --git a/clang/test/CodeGenCXX/vtable-linkage.cpp b/clang/test/CodeGenCXX/vtable-linkage.cpp
@@ -97,7 +97,7 @@ void use_F() {
 // CHECK-DAG: @_ZTV1B = external unnamed_addr constant
 
 // C has no key function, so its vtable should have weak_odr linkage
-// and hidden visibility (rdar://problem/7523229).
+// and hidden visibility.
 // CHECK-DAG: @_ZTV1C = linkonce_odr unnamed_addr constant {{.*}}, comdat, align 8{{$}}
 // CHECK-DAG: @_ZTS1C = linkonce_odr constant {{.*}}, comdat, align 1{{$}}
 // CHECK-DAG: @_ZTI1C = linkonce_odr constant {{.*}}, comdat, align 8{{$}}

diff --git a/clang/test/CodeGenCXX/weak-extern-typeinfo.cpp b/clang/test/CodeGenCXX/weak-extern-typeinfo.cpp
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 %s -emit-llvm -triple %itanium_abi_triple -o - | FileCheck %s
-// rdar://10246395
 
 #define WEAK __attribute__ ((weak)) 
 

diff --git a/clang/test/CodeGenCXX/x86_64-arguments.cpp b/clang/test/CodeGenCXX/x86_64-arguments.cpp
@@ -62,7 +62,7 @@ void foo() {
 }
 }
 
-namespace PR7742 { // Also rdar://8250764
+namespace PR7742 {
   struct s2 {
     float a[2];
   };
@@ -107,8 +107,8 @@ namespace test5 {
   X getX();
   int takeY(const Y&, int y);
   void g() {
-    // rdar://8340348 - The temporary for the X object needs to have a defined
-    // address when passed into X::f as 'this'.
+    // The temporary for the X object needs to have a defined address when
+    // passed into X::f as 'this'.
     takeY(getX().f(), 42);
   }
   // CHECK: void @_ZN5test51gEv()
@@ -117,8 +117,6 @@ namespace test5 {
   // CHECK: alloca %"struct.test5::Y"
 }
 
-
-// rdar://8360877
 namespace test6 {
   struct outer {
     int x;
@@ -138,7 +136,6 @@ namespace test7 {
   A x(A, A, long, long, StringRef) { return A(); }
   // Check that the StringRef is passed byval instead of expanded
   // (which would split it between registers and memory).
-  // rdar://problem/9686430
   // CHECK: define{{.*}} void @_ZN5test71xENS_1AES0_llNS_9StringRefE({{.*}} byval({{.*}}) align 8 {{%.*}})
 
   // And a couple extra related tests:

diff --git a/clang/test/CodeGenObjC/2007-10-23-GC-WriteBarrier.m b/clang/test/CodeGenObjC/2007-10-23-GC-WriteBarrier.m
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -emit-llvm %s -o /dev/null -fobjc-gc
-// rdar://5541393
 
 typedef unsigned int NSUInteger;
 __attribute__((objc_gc(strong))) float *_scores;

diff --git a/clang/test/CodeGenObjC/2008-11-25-Blocks.m b/clang/test/CodeGenObjC/2008-11-25-Blocks.m
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -fblocks -emit-llvm %s -o /dev/null
-// rdar://6394879
 
 @interface bork
 - (id)B:(void (^)(void))blk;

diff --git a/clang/test/CodeGenObjC/2009-01-26-WriteBarrier-2.m b/clang/test/CodeGenObjC/2009-01-26-WriteBarrier-2.m
@@ -1,7 +1,6 @@
 // RUN: %clang_cc1 -fblocks -emit-llvm %s -fobjc-gc -o - | FileCheck %s
 
 // CHECK: objc_assign_strongCast
-// rdar://5541393
 
 typedef __SIZE_TYPE__ size_t;
 void * malloc(size_t size);

diff --git a/clang/test/CodeGenObjC/2009-02-05-VolatileProp.m b/clang/test/CodeGenObjC/2009-02-05-VolatileProp.m
@@ -1,5 +1,4 @@
 // RUN: %clang -fexceptions -S -emit-llvm %s -o /dev/null -pedantic-errors
-// rdar://6551276
 
 void foo(const unsigned short *);
 void bar(void) {

diff --git a/clang/test/CodeGenObjC/2009-08-05-utf16.m b/clang/test/CodeGenObjC/2009-08-05-utf16.m
@@ -1,7 +1,6 @@
 // REQUIRES: x86-registered-target
 
 // RUN: %clang_cc1 -triple x86_64-macho -emit-llvm -w -x objective-c %s -o - | FileCheck %s
-// rdar://7095855 rdar://7115749
 
 // CHECK: private unnamed_addr constant [6 x i16] [i16 105, i16 80, i16 111, i16 100, i16 8482, i16 0], section "__TEXT,__ustring", align 2
 void *P = @"iPod™";
diff --git a/clang/test/CodeGenObjC/2010-02-01-utf16-with-null.m b/clang/test/CodeGenObjC/2010-02-01-utf16-with-null.m
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -triple i686-apple-darwin -emit-llvm %s -o - | FileCheck %s
-// rdar://7589850
 
 // CHECK: @.str = private unnamed_addr constant [9 x i16] [i16 103, i16 111, i16 111, i16 100, i16 0, i16 98, i16 121, i16 101, i16 0], section "__TEXT,__ustring", align 2
 // CHECK: @_unnamed_cfstring_ = private global %struct.__NSConstantString_tag { ptr @__CFConstantStringClassReference, i32 2000, ptr @.str, i32 8 }, section "__DATA,__cfstring"

diff --git a/clang/test/CodeGenObjC/2010-03-17-StructRef.m b/clang/test/CodeGenObjC/2010-03-17-StructRef.m
@@ -1,6 +1,6 @@
 // RUN: %clang_cc1 %s -emit-llvm -triple x86_64-apple-darwin -fobjc-runtime=macosx-fragile-10.5 -o - | FileCheck %s
 // Bitfield references must not touch memory outside of the enclosing
-// struct.   Radar 7639995
+// struct.
 typedef signed char BOOL;
 @protocol NSObject
 - (id)init;

diff --git a/clang/test/CodeGenObjC/arc-arm.m b/clang/test/CodeGenObjC/arc-arm.m
@@ -1,7 +1,7 @@
 // RUN: %clang_cc1 -triple armv7-apple-darwin10 -emit-llvm -fblocks -fobjc-arc -o - %s | FileCheck %s
 // RUN: %clang_cc1 -triple arm64-apple-ios -emit-llvm -fblocks -fobjc-arc -o - %s | FileCheck %s
 
-// <rdar://12438598>: use an autorelease marker on ARM64.
+// use an autorelease marker on ARM64.
 
 id test0(void) {
   extern id test0_helper(void);
@@ -21,7 +21,6 @@ void test1(void) {
   id x = test1_helper();
 }
 
-// rdar://problem/12133032
 @class A;
 A *test2(void) {
   extern A *test2_helper(void);

diff --git a/clang/test/CodeGenObjC/arc-block-copy-escape.m b/clang/test/CodeGenObjC/arc-block-copy-escape.m
@@ -6,8 +6,6 @@
 void use_block(block_t);
 void use_int(int);
 
-// rdar://problem/10211676
-
 void test0(int i) {
   block_t block = ^{ use_int(i); };
   // CHECK-LABEL:      define {{.*}}void @test0(

diff --git a/clang/test/CodeGenObjC/arc-blocks.m b/clang/test/CodeGenObjC/arc-blocks.m
@@ -303,7 +303,6 @@ id test9(void) {
 // CHECK-NEXT: ret ptr
 }
 
-// rdar://problem/9814099
 // Test that we correctly initialize __block variables
 // when the initialization captures the variable.
 void test10a(void) {
@@ -334,10 +333,9 @@ void test10a(void) {
   // CHECK: ret void
 }
 
-// <rdar://problem/10402698>: do this copy and dispose with
-// objc_retainBlock/release instead of _Block_object_assign/destroy.
-// We can also use _Block_object_assign/destroy with
-// BLOCK_FIELD_IS_BLOCK as long as we don't pass BLOCK_BYREF_CALLER.
+// do this copy and dispose with objc_retainBlock/release instead of
+// _Block_object_assign/destroy. We can also use _Block_object_assign/destroy
+// with BLOCK_FIELD_IS_BLOCK as long as we don't pass BLOCK_BYREF_CALLER.
 
 // CHECK-LABEL: define internal void @__Block_byref_object_copy_.{{[0-9]+}}(ptr noundef %0, ptr noundef %1) #{{[0-9]+}} {
 // CHECK:      [[D0:%.*]] = load ptr, ptr {{%.*}}
@@ -389,7 +387,6 @@ void test10b(void) {
   // CHECK: ret void
 }
 
-// rdar://problem/10088932
 void test11_helper(id);
 void test11a(void) {
   int x;
@@ -418,7 +415,6 @@ void test11b(void) {
   // CHECK: ret void
 }
 
-// rdar://problem/9979150
 @interface Test12
 @property (strong) void(^ablock)(void);
 @property (nonatomic, strong) void(^nblock)(void);
@@ -438,7 +434,6 @@ @implementation Test12
 // CHECK:    call void @objc_setProperty(ptr noundef {{%.*}}, ptr noundef {{%.*}}, i64 noundef {{%.*}}, ptr noundef {{%.*}}, i1 noundef zeroext false, i1 noundef zeroext true)
 @end
 
-// rdar://problem/10131784
 void test13(id x) {
   extern void test13_helper(id);
   extern void test13_use(void(^)(void));
@@ -490,19 +485,16 @@ void test13(id x) {
   // CHECK-NEXT: ret void
 }
 
-// <rdar://problem/10907510>
 void test14(void) {
   void (^const x[1])(void) = { ^{} };
 }
 
-// rdar://11149025
 // Don't make invalid ASTs and crash.
 void test15_helper(void (^block)(void), int x);
 void test15(int a) {
   test15_helper(^{ (void) a; }, ({ a; }));
 }
 
-// rdar://11016025
 void test16(void) {
   void (^BLKVAR)(void) = ^{ BLKVAR(); };
 
@@ -513,8 +505,6 @@ void test16(void) {
   // CHECK-NEXT:  store ptr null, ptr [[BLKVAR]], align 8
 }
 
-// rdar://12151005
-//
 // This is an intentional exception to our conservative jump-scope
 // checking for full-expressions containing block literals with
 // non-trivial cleanups: if the block literal appears in the operand
@@ -592,7 +582,6 @@ void testUnsafeUnretainedLifetimeInCopyAndDestroyHelpers(id x, id y) {
 // CHECK-LABEL: define internal void @__testUnsafeUnretainedLifetimeInCopyAndDestroyHelpers_block_invoke
 // CHECK-UNOPT-LABEL: define internal void @__testUnsafeUnretainedLifetimeInCopyAndDestroyHelpers_block_invoke
 
-// rdar://13588325
 void test19_sink(void (^)(int));
 void test19(void (^b)(void)) {
 // CHECK-LABEL:    define{{.*}} void @test19(

diff --git a/clang/test/CodeGenObjC/arc-captured-32bit-block-var-layout-2.m b/clang/test/CodeGenObjC/arc-captured-32bit-block-var-layout-2.m
@@ -1,7 +1,5 @@
 // RUN: %clang_cc1 -fblocks -fobjc-arc -fobjc-runtime-has-weak -triple i386-apple-darwin -print-ivar-layout -emit-llvm -o /dev/null %s > %t-32.layout
 // RUN: FileCheck --input-file=%t-32.layout %s
-// rdar://12184410
-// rdar://12752901
 
 @class NSString;
 extern void NSLog(NSString *format, ...);

diff --git a/clang/test/CodeGenObjC/arc-captured-32bit-block-var-layout.m b/clang/test/CodeGenObjC/arc-captured-32bit-block-var-layout.m
@@ -1,7 +1,5 @@
 // RUN: %clang_cc1 -fblocks -fobjc-arc -fobjc-runtime-has-weak -triple i386-apple-darwin -print-ivar-layout -emit-llvm -o /dev/null %s > %t-32.layout
 // RUN: FileCheck --input-file=%t-32.layout %s
-// rdar://12184410
-// rdar://12752901
 
 void x(id y) {}
 void y(int a) {}

diff --git a/clang/test/CodeGenObjC/arc-captured-block-var-inlined-layout.m b/clang/test/CodeGenObjC/arc-captured-block-var-inlined-layout.m
@@ -2,7 +2,6 @@
 // RUN: FileCheck --input-file=%t-64.layout %s
 // RUN: %clang_cc1 -fblocks -fobjc-arc -fobjc-runtime-has-weak -triple i386-apple-darwin -print-ivar-layout -emit-llvm -o /dev/null  %s > %t-32.layout
 // RUN: FileCheck --input-file=%t-32.layout %s
-// rdar://12184410
 
 void x(id y) {}
 void y(int a) {}
@@ -95,7 +94,6 @@ void f(void) {
     };
 }
 
-// rdar://12752901
 @class NSString;
 extern void NSLog(NSString *format, ...);
 typedef void (^dispatch_block_t)(void);

diff --git a/clang/test/CodeGenObjC/arc-captured-block-var-layout.m b/clang/test/CodeGenObjC/arc-captured-block-var-layout.m
@@ -1,7 +1,5 @@
 // RUN: %clang_cc1 -fblocks -fobjc-arc -fobjc-runtime-has-weak -triple x86_64-apple-darwin -print-ivar-layout -emit-llvm -o /dev/null %s > %t-64.layout
 // RUN: FileCheck -check-prefix CHECK-LP64 --input-file=%t-64.layout %s
-// rdar://12184410
-// rdar://12752901
 
 void x(id y) {}
 void y(int a) {}

diff --git a/clang/test/CodeGenObjC/arc-compound-stmt.m b/clang/test/CodeGenObjC/arc-compound-stmt.m
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -fobjc-arc -o - %s
-// rdar://9694706
 
 typedef unsigned long NSUInteger;
 

diff --git a/clang/test/CodeGenObjC/arc-cond-stmt.m b/clang/test/CodeGenObjC/arc-cond-stmt.m
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -fobjc-arc -o - %s
-// rdar://10327068
 
 @class NSString;
 

diff --git a/clang/test/CodeGenObjC/arc-exceptions.m b/clang/test/CodeGenObjC/arc-exceptions.m
@@ -2,7 +2,7 @@
 
 @class Ety;
 
-// These first two tests are all PR11732 / rdar://problem/10667070.
+// These first two tests are all PR11732
 
 void test0_helper(void);
 void test0(void) {

diff --git a/clang/test/CodeGenObjC/arc-foreach.m b/clang/test/CodeGenObjC/arc-foreach.m
@@ -1,7 +1,5 @@
 // RUN: %clang_cc1 -no-enable-noundef-analysis -triple x86_64-apple-darwin -fblocks -fobjc-arc -fobjc-runtime-has-weak -emit-llvm %s -o - | FileCheck -check-prefix CHECK-LP64 %s
 // RUN: %clang_cc1 -no-enable-noundef-analysis -triple x86_64-apple-darwin -O1 -fblocks -fobjc-arc -fobjc-runtime-has-weak -emit-llvm %s -o - | FileCheck -check-prefix CHECK-LP64-OPT %s
-// rdar://9503326
-// rdar://9606600
 
 extern void use(id);
 extern void use_block(void (^)(void));
@@ -112,7 +110,6 @@ void test1(NSArray *array) {
 // CHECK-LP64-NEXT: call void @llvm.objc.destroyWeak(ptr [[T0]])
 // CHECK-LP64-NEXT: call void @llvm.objc.destroyWeak(ptr [[X]])
 
-// rdar://problem/9817306
 @interface Test2
 - (NSArray *) array;
 @end

diff --git a/clang/test/CodeGenObjC/arc-i386.m b/clang/test/CodeGenObjC/arc-i386.m
@@ -1,7 +1,7 @@
 // RUN: %clang_cc1 -triple i386-apple-darwin10 -emit-llvm -fblocks -fobjc-arc -o - %s | FileCheck %s
 // RUN: %clang_cc1 -triple i386-apple-iossimulator6.0 -emit-llvm -fblocks -fobjc-arc -o - %s | FileCheck %s
 
-// <rdar://24531556>: implement objc_retainAutoreleasedReturnValue on i386
+// implement objc_retainAutoreleasedReturnValue on i386
 
 // CHECK-LABEL: define{{.*}} ptr @test0()
 id test0(void) {
@@ -23,7 +23,6 @@ void test1(void) {
   id x = test1_helper();
 }
 
-// rdar://problem/12133032
 // CHECK-LABEL: define {{.*}} @test2()
 @class A;
 A *test2(void) {

diff --git a/clang/test/CodeGenObjC/arc-ivar-layout.m b/clang/test/CodeGenObjC/arc-ivar-layout.m
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -fobjc-arc -fobjc-runtime-has-weak -triple x86_64-apple-darwin -print-ivar-layout -emit-llvm %s -o %t-64.s | FileCheck -check-prefix CHECK-LP64 %s
-// rdar://8991729
 
 @interface NSObject {
   id isa;
@@ -54,7 +53,6 @@ @implementation UnsafePerson @end
 
 // CHECK-LP64: strong ivar layout for class 'UnsafePerson': 0x21, 0x00
 
-// rdar://16136439
 @interface rdar16136439
     @property (nonatomic, readonly, weak) id first;
 @end

diff --git a/clang/test/CodeGenObjC/arc-loadweakretained-release.m b/clang/test/CodeGenObjC/arc-loadweakretained-release.m
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -fblocks -fobjc-arc -fobjc-runtime-has-weak -o - %s | FileCheck %s
-// rdar://10849570
 
 @interface NSObject @end
 

diff --git a/clang/test/CodeGenObjC/arc-no-runtime.m b/clang/test/CodeGenObjC/arc-no-runtime.m
@@ -1,6 +1,5 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fobjc-arc -emit-llvm %s -o - | FileCheck %s
 
-// rdar://problem/9224855
 id make(void) __attribute__((ns_returns_retained));
 void test0(void) {
   make();

diff --git a/clang/test/CodeGenObjC/arc-precise-lifetime.m b/clang/test/CodeGenObjC/arc-precise-lifetime.m
@@ -24,11 +24,11 @@ void test0(void) {
   // CHECK-NEXT: ret void
 }
 
-// rdar://problem/9821110 - precise lifetime should suppress extension
-// rdar://problem/22172983 - should work for calls via property syntax, too
+// precise lifetime should suppress extension
+// should work for calls via property syntax, too
 @interface Test1
 - (char*) interior __attribute__((objc_returns_inner_pointer));
-// Should we allow this on properties? Yes! see // rdar://14990439
+// Should we allow this on properties? Yes!
 @property (nonatomic, readonly) char * PropertyReturnsInnerPointer __attribute__((objc_returns_inner_pointer));
 @end
 extern Test1 *test1_helper(void);

diff --git a/clang/test/CodeGenObjC/arc-property.m b/clang/test/CodeGenObjC/arc-property.m
@@ -1,6 +1,5 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fobjc-arc -emit-llvm %s -o - | FileCheck %s
 
-// rdar://problem/10290317
 @interface Test0
 - (void) setValue: (id) x;
 @end
@@ -36,7 +35,6 @@ @implementation Test1
 // CHECK-NEXT: ret void
 
 
-// rdar://problem/12039404
 @interface Test2 {
 @private
   Class _theClass;
@@ -77,7 +75,6 @@ - (void) test {
 // CHECK-NEXT: call void @llvm.objc.storeStrong(ptr [[T2]], ptr null) [[NUW]]
 // CHECK-NEXT: ret void
 
-// rdar://13115896
 @interface Test3
 @property id copyMachine;
 @end
@@ -119,7 +116,6 @@ - (id) copyMachine {
 - (void) setCopyMachine: (id) x {}
 @end
 
-// rdar://31579994
 // When synthesizing a property that's declared in multiple protocols, ensure
 // that the setter is emitted if any of these declarations is readwrite.
 @protocol ABC

diff --git a/clang/test/CodeGenObjC/arc-ternary-op.m b/clang/test/CodeGenObjC/arc-ternary-op.m
@@ -104,7 +104,6 @@ void test1(int cond) {
   // CHECK:      ret void
 }
 
-// rdar://13113981
 // Test that, when emitting an expression at +1 that we can't peephole,
 // we emit the retain inside the full-expression.  If we ever peephole
 // +1s of conditional expressions (which we probably ought to), we'll

diff --git a/clang/test/CodeGenObjC/arc-unbridged-cast.m b/clang/test/CodeGenObjC/arc-unbridged-cast.m
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin11 -emit-llvm  -fobjc-arc -o - %s | FileCheck %s
-// rdar://9744349
 
 typedef const struct __CFString * CFStringRef;
 
@@ -24,7 +23,6 @@ - (CFStringRef) P { return 0; }
 - (void) setP : (CFStringRef)arg {}
 @end
 
-// rdar://9544832
 CFStringRef SomeOtherFunc(void) __attribute__((cf_returns_retained));
 id MMM(void)
 {

diff --git a/clang/test/CodeGenObjC/arc-unopt.m b/clang/test/CodeGenObjC/arc-unopt.m
@@ -45,7 +45,6 @@ @interface Test4_sub : Test4 { id y; } @end
   return test4_helper();
 }
 
-// rdar://problem/9418404
 @class Test5;
 void test5(void) {
   Test5 *x, *y;

diff --git a/clang/test/CodeGenObjC/arc-unoptimized-byref-var.m b/clang/test/CodeGenObjC/arc-unoptimized-byref-var.m
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -fblocks -fobjc-arc -fobjc-runtime-has-weak -o - %s | FileCheck -check-prefix=CHECK-UNOPT %s
-// rdar://12530881
 
 void test19(void) {
    __block id x;

diff --git a/clang/test/CodeGenObjC/arc-weak-property.m b/clang/test/CodeGenObjC/arc-weak-property.m
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -fobjc-runtime-has-weak -fblocks -fobjc-arc -o - %s | FileCheck %s
-// rdar://8899430
 
 @interface WeakPropertyTest {
     __weak id PROP;

diff --git a/clang/test/CodeGenObjC/arc-weak.m b/clang/test/CodeGenObjC/arc-weak.m
@@ -3,7 +3,6 @@
 __attribute((objc_root_class)) @interface A @end
 @interface B : A @end
 
-// rdar://problem/23559789
 //   Ensure that type differences don't cause an assert here.
 void test0(__weak B **src) {
   __weak A *dest = *src;

diff --git a/clang/test/CodeGenObjC/arc-with-atthrow.m b/clang/test/CodeGenObjC/arc-with-atthrow.m
@@ -1,6 +1,5 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -fobjc-arc -fobjc-exceptions -o - %s | FileCheck %s
 // pr10411
-// rdar://10042689
 
 id make(void);
 void test(void) { 

diff --git a/clang/test/CodeGenObjC/arc.m b/clang/test/CodeGenObjC/arc.m
@@ -1,8 +1,8 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -Wno-objc-root-class -Wno-incompatible-pointer-types -Wno-arc-unsafe-retained-assign -emit-llvm -fblocks -fobjc-arc -fobjc-runtime-has-weak -O2 -disable-llvm-passes -o - %s | FileCheck %s
 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -Wno-objc-root-class -Wno-incompatible-pointer-types -Wno-arc-unsafe-retained-assign -emit-llvm -fblocks -fobjc-arc -fobjc-runtime-has-weak -o - %s | FileCheck -check-prefix=CHECK-GLOBALS %s
 
-// rdar://13129783. Check both native/non-native arc platforms. Here we check
-// that they treat nonlazybind differently.
+// Check both native/non-native arc platforms. Here we check that they treat
+// nonlazybind differently.
 // RUN: %clang_cc1 -fobjc-runtime=macosx-10.6.0 -triple x86_64-apple-darwin10 -Wno-objc-root-class -Wno-incompatible-pointer-types -Wno-arc-unsafe-retained-assign -emit-llvm -fblocks -fobjc-arc -fobjc-runtime-has-weak -o - %s | FileCheck -check-prefix=ARC-ALIEN %s
 // RUN: %clang_cc1 -fobjc-runtime=macosx-10.7.0 -triple x86_64-apple-darwin11 -Wno-objc-root-class -Wno-incompatible-pointer-types -Wno-arc-unsafe-retained-assign -emit-llvm -fblocks -fobjc-arc -fobjc-runtime-has-weak -o - %s | FileCheck -check-prefix=ARC-NATIVE %s
 
@@ -562,9 +562,7 @@ void test21(unsigned n) {
   // CHECK-NEXT: ret void
 }
 
-// rdar://problem/8922540
 //   Note that we no longer emit .release_ivars flags.
-// rdar://problem/12492434
 //   Note that we set the flag saying that we need destruction *and*
 //   the flag saying that we don't also need construction.
 // CHECK-GLOBALS: @"_OBJC_CLASS_RO_$_Test23" = internal global [[RO_T:%.*]] { i32 390,
@@ -575,7 +573,6 @@ @implementation Test23 @end
 @interface Test24 {} @end
 @implementation Test24 @end
 
-// rdar://problem/8941012
 @interface Test26 { id x[4]; } @end
 @implementation Test26 @end
 // CHECK:    define internal void @"\01-[Test26 .cxx_destruct]"(
@@ -611,7 +608,6 @@ - (id) init { return self; }
 
 @end
 
-// rdar://problem/8087194
 @interface Test28
 @property (copy) id prop;
 @end
@@ -933,7 +929,6 @@ @implementation Test45
 // CHECK:      [[CALL:%.*]] = tail call ptr @objc_getProperty(
 // CHECK-NEXT: ret ptr [[CALL]]
 
-// rdar://problem/9315552
 void test46(__weak id *wp, __weak volatile id *wvp) {
   extern id test46_helper(void);
 
@@ -958,7 +953,6 @@ void test46(__weak id *wp, __weak volatile id *wvp) {
   id y = *wvp = test46_helper();
 }
 
-// rdar://problem/9378887
 void test47(void) {
   extern id test47_helper(void);
   id x = x = test47_helper();
@@ -1016,16 +1010,13 @@ void test49(void) {
   // CHECK-NEXT: ret void
 }
 
-// rdar://9380136
 id x(void);
 void test50(id y) {
   ({x();});
 // CHECK: [[T0:%.*]] = call ptr @llvm.objc.retain
 // CHECK: call void @llvm.objc.release
 }
 
-
-// rdar://9400762
 struct CGPoint {
   float x;
   float y;
@@ -1040,7 +1031,6 @@ @implementation Foo
 @synthesize point;
 @end
 
-// rdar://problem/9400398
 id test52(void) {
   id test52_helper(int) __attribute__((ns_returns_retained));
   return ({ int x = 5; test52_helper(x); });
@@ -1059,7 +1049,6 @@ id test52(void) {
 // CHECK-NEXT: ret ptr [[T3]]
 }
 
-// rdar://problem/9400644
 void test53(void) {
   id test53_helper(void);
   id x = ({ id y = test53_helper(); y; });
@@ -1088,7 +1077,6 @@ void test53(void) {
 // CHECK-NEXT: ret void
 }
 
-// <rdar://problem/9758798>
 // CHECK-LABEL: define{{.*}} void @test54(i32 noundef %first, ...)
 void test54(int first, ...) {
   __builtin_va_list arglist;
@@ -1112,7 +1100,6 @@ - (void) dealloc {}
 // CHECK-NOT: ret
 // CHECK:     call void @objc_msgSendSuper2(
 
-// rdar://problem/8024350
 @protocol Test56Protocol
 + (id) make __attribute__((ns_returns_retained));
 @end
@@ -1140,7 +1127,6 @@ void test56_test(void) {
   // CHECK-NEXT: ret void
 }
 
-// rdar://problem/9784964
 @interface Test57
 @property (nonatomic, strong) id strong;
 @property (nonatomic, weak) id weak;
@@ -1171,7 +1157,6 @@ @implementation Test57
 // CHECK-NEXT: [[T5:%.*]] = load ptr, ptr [[T3]]
 // CHECK-NEXT: ret ptr [[T5]]
 
-// rdar://problem/9842343
 void test59(void) {
   extern id test59_getlock(void);
   extern void test59_body(void);
@@ -1190,7 +1175,6 @@ void test59(void) {
 }
 
 // Verify that we don't try to reclaim the result of performSelector.
-// rdar://problem/9887545
 @interface Test61
 - (id) performSelector: (SEL) selector;
 - (void) test61_void;
@@ -1227,7 +1211,6 @@ void test61(void) {
   // CHECK-NEXT: ret void
 }
 
-// rdar://problem/9891815
 void test62(void) {
   // CHECK-LABEL:    define{{.*}} void @test62()
   // CHECK:      [[I:%.*]] = alloca i32, align 4
@@ -1277,7 +1260,6 @@ void test62(void) {
   // CHECK:      ret void
 }
 
-// rdar://9971982
 @class NSString;
 
 @interface Person  {
@@ -1318,7 +1300,6 @@ void test66(void) {
 // CHECK: call void @llvm.objc.release(ptr [[T3]])
 // CHECK-NEXT: ret void
 
-// rdar://problem/9953540
 Class test67_helper(void);
 void test67(void) {
   Class cl = test67_helper();
@@ -1346,7 +1327,6 @@ void test68(void) {
 // CHECK-NEXT: call void @llvm.lifetime.end.p0(i64 8, ptr [[CL]])
 // CHECK-NEXT: ret void
 
-// rdar://problem/10564852
 @interface Test69 @end
 @implementation Test69
 - (id) foo { return self; }
@@ -1356,7 +1336,6 @@ - (id) foo { return self; }
 // CHECK:      [[T0:%.*]] = load ptr, ptr [[SELF]], align 8
 // CHECK-NEXT: ret ptr [[T0]]
 
-// rdar://problem/10907547
 void test70(id i) {
   // CHECK-LABEL: define{{.*}} void @test70
   // CHECK: store ptr null, ptr

diff --git a/clang/test/CodeGenObjC/arm-atomic-scalar-setter-getter.m b/clang/test/CodeGenObjC/arm-atomic-scalar-setter-getter.m
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -triple armv7-apple-darwin10 -emit-llvm -o - %s | FileCheck -check-prefix=CHECK-ARM %s
-// rdar://7761305
 
 @interface I
 @property long long LONG_PROP;

diff --git a/clang/test/CodeGenObjC/arm64-int32-ivar.m b/clang/test/CodeGenObjC/arm64-int32-ivar.m
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -triple arm64-apple-ios -emit-llvm  -o - %s | FileCheck %s
-// rdar://12617764
 
 // CHECK: @"OBJC_IVAR_$_I.IVAR2" = global i32 8
 // CHECK: @"OBJC_IVAR_$_I.IVAR1" = global i32 0

diff --git a/clang/test/CodeGenObjC/atomic-aggregate-property.m b/clang/test/CodeGenObjC/atomic-aggregate-property.m
@@ -1,7 +1,5 @@
 // RUN: %clang_cc1 -no-enable-noundef-analysis -triple x86_64-apple-darwin10  -fobjc-gc -emit-llvm -o - %s | FileCheck -check-prefix CHECK-LP64 %s
 // RUN: %clang_cc1 -no-enable-noundef-analysis -x objective-c++ -triple x86_64-apple-darwin10  -fobjc-gc -emit-llvm -o - %s | FileCheck -check-prefix CHECK-LP64 %s
-// rdar: // 7849824
-// <rdar://problem/12547611>
 
 struct s {
   double a, b, c, d;  

diff --git a/clang/test/CodeGenObjC/auto-property-synthesize-protocol.m b/clang/test/CodeGenObjC/auto-property-synthesize-protocol.m
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin -emit-llvm  %s -o - | FileCheck %s
-// rdar://10907410
 
 @protocol P
 @optional

diff --git a/clang/test/CodeGenObjC/autorelease.m b/clang/test/CodeGenObjC/autorelease.m
@@ -1,7 +1,5 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -fobjc-arc -fobjc-runtime=macosx-10.7 -fexceptions -fobjc-exceptions -o - %s | FileCheck %s
 // RUN: %clang_cc1 -triple x86_64-apple-darwin11 -emit-llvm -fobjc-runtime=macosx-10.7 -fexceptions -fobjc-exceptions -o - %s | FileCheck %s
-// rdar://8881826
-// rdar://9412038
 
 @interface I
 {
@@ -29,7 +27,6 @@ + (id) MyAlloc {
 // CHECK: [[T:%.*]] = load ptr, ptr [[A:%.*]]
 // CHECK: call void @llvm.objc.autoreleasePoolPop
 
-// rdar://13660038
 int tryTo(int (*f)(void)) {
   @try {
     @autoreleasepool {

diff --git a/clang/test/CodeGenObjC/block-6.m b/clang/test/CodeGenObjC/block-6.m
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 %s -emit-llvm -o - -fblocks -triple x86_64-apple-darwin10 -fobjc-runtime=macosx-fragile-10.5 | FileCheck %s
-// rdar://8893785
 
 void MYFUNC(void) {
 // CHECK-LABEL:    define{{.*}} void @MYFUNC()

diff --git a/clang/test/CodeGenObjC/block-byref-variable-layout.m b/clang/test/CodeGenObjC/block-byref-variable-layout.m
@@ -1,6 +1,5 @@
 // RUN: %clang_cc1 -fblocks -fobjc-arc -fobjc-runtime-has-weak -triple x86_64-apple-darwin -emit-llvm %s -o - | FileCheck %s
 
-// rdar://12759433
 @class NSString;
 
 void Test12759433(void) {
@@ -41,7 +40,6 @@ int main(void) {
   c();
 }
 
-// rdar://12787751
 typedef char mds_path_t[1024];
 void directVolumePerfWaitForStoreState(void)
 {

diff --git a/clang/test/CodeGenObjC/block-over-align.m b/clang/test/CodeGenObjC/block-over-align.m
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -fblocks -triple x86_64-apple-darwin -emit-llvm -o /dev/null %s
-// rdar://17878679
 
 typedef struct
 {

diff --git a/clang/test/CodeGenObjC/block-ptr-type-crash.m b/clang/test/CodeGenObjC/block-ptr-type-crash.m
@@ -2,8 +2,6 @@
 // REQUIRES: asserts
 // Verify there is no assertion.
 
-// rdar://30111891
-
 typedef unsigned long long uint64_t;
 typedef enum AnEnum : uint64_t AnEnum;
 enum AnEnum: uint64_t {

diff --git a/clang/test/CodeGenObjC/block-var-layout.m b/clang/test/CodeGenObjC/block-var-layout.m
@@ -1,6 +1,5 @@
 // RUN: %clang_cc1 -fblocks -fobjc-gc -triple x86_64-apple-darwin -fobjc-runtime=macosx-fragile-10.5 -print-ivar-layout -emit-llvm -o /dev/null %s > %t-64.layout
 // RUN: FileCheck -check-prefix CHECK-LP64 --input-file=%t-64.layout %s
-// rdar://12752901
 
 struct S {
     int i1;
@@ -137,7 +136,6 @@ void Test5(void) {
   c();
 }
 
-// rdar: //8417746
 void CFRelease(id);
 void notifyBlock(id dependentBlock) {
  id singleObservationToken;
@@ -165,7 +163,6 @@ void test_empty_block(void) {
  wrapperBlock();
 }
 
-// rdar://16111839
 typedef union { char ch[8];  } SS;
 typedef struct { SS s[4]; } CS;
 void test_union_in_layout(void) {

diff --git a/clang/test/CodeGenObjC/blocks-2.m b/clang/test/CodeGenObjC/blocks-2.m
@@ -13,7 +13,7 @@ id test0(id x) {
   return result;
 }
 
-// <rdar://problem/8224178>: cleanup __block variables on EH path
+// cleanup __block variables on EH path
 // CHECK: define{{.*}} void @{{.*}}test1
 void test1(void) {
   extern void test1_help(void (^x)(void));

diff --git a/clang/test/CodeGenObjC/blocks-4.m b/clang/test/CodeGenObjC/blocks-4.m
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -triple i386-apple-darwin9 -fobjc-runtime=macosx-fragile-10.5 -emit-llvm -fobjc-exceptions -fblocks -o %t %s
-// rdar://7590273
 
 void EXIT(id e);
 

diff --git a/clang/test/CodeGenObjC/blocks-5.m b/clang/test/CodeGenObjC/blocks-5.m
@@ -1,7 +1,5 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin9 -fobjc-runtime=macosx-fragile-10.5 -emit-llvm -fblocks -o %t %s
 
-// rdar: // 8064140
-
 @interface IDEWorkspaceDocument 
 {
   id _defaultEditorStateTree;

diff --git a/clang/test/CodeGenObjC/blocks-ivar-debug.m b/clang/test/CodeGenObjC/blocks-ivar-debug.m
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -debug-info-kind=limited %s -fblocks -S -o %t
-// Radar 7959934
 
 @interface NSObject {
   struct objc_object *isa;

diff --git a/clang/test/CodeGenObjC/blocks.m b/clang/test/CodeGenObjC/blocks.m
@@ -7,7 +7,6 @@
 
 void (^gb0)(void);
 
-// test1.  All of this is somehow testing rdar://6676764
 struct S {
   void (^F)(struct S*);
 } P;
@@ -45,7 +44,6 @@ -(void) im3 {
 }
 @end
 
-// rdar://problem/9006315
 // In-depth test for the initialization of a __weak __block variable.
 @interface Test2 -(void) destroy; @end
 void test2(Test2 *x) {
@@ -93,7 +91,6 @@ void test2(Test2 *x) {
   test2_helper(^{ [weakX destroy]; });
 }
 
-// rdar://problem/9124263
 // In the test above, check that the use in the invocation function
 // doesn't require a read barrier.
 // CHECK-LABEL:    define internal void @__test2_block_invoke
@@ -104,7 +101,6 @@ void test2(Test2 *x) {
 // CHECK-NEXT: [[WEAKX:%.*]] = getelementptr inbounds [[WEAK_T]]{{.*}}, ptr [[T4]], i32 0, i32 6
 // CHECK-NEXT: [[T0:%.*]] = load ptr, ptr [[WEAKX]], align 4
 
-// rdar://problem/12722954
 // Make sure that ... is appropriately positioned in a block call.
 void test3(void (^block)(int, ...)) {
   block(0, 1, 2, 3);

diff --git a/clang/test/CodeGenObjC/builtin-constant-p.m b/clang/test/CodeGenObjC/builtin-constant-p.m
@@ -2,7 +2,6 @@
 
 // Test that can call `__builtin_constant_p` with instances of different
 // Objective-C classes.
-// rdar://problem/47499250
 @class Foo;
 @class Bar;
 

diff --git a/clang/test/CodeGenObjC/category-super-class-meth.m b/clang/test/CodeGenObjC/category-super-class-meth.m
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 %s -emit-llvm -triple x86_64-apple-darwin -o - | FileCheck %s
-// rdar://12459358
 @interface NSObject 
 -(id)copy;
 +(id)copy;

diff --git a/clang/test/CodeGenObjC/class-type.m b/clang/test/CodeGenObjC/class-type.m
@@ -26,7 +26,6 @@ @implementation I2
 
 
 // Implementations without interface declarations.
-// rdar://6804402
 @class foo;
 @implementation foo 
 @end

diff --git a/clang/test/CodeGenObjC/complex-double-abi.m b/clang/test/CodeGenObjC/complex-double-abi.m
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -emit-llvm -triple i386-apple-macosx10.7.2 %s -o - | FileCheck %s 
-// rdar://10331109
 
 @interface CNumber
 - (double _Complex)sum;

diff --git a/clang/test/CodeGenObjC/complex-property.m b/clang/test/CodeGenObjC/complex-property.m
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin10  -emit-llvm -o - %s | FileCheck -check-prefix CHECK-LP64 %s
-// rdar: // 7351147
 
 @interface A
 @property __complex int COMPLEX_PROP;
@@ -16,7 +15,6 @@ void f0(A *a) {
 // CHECK-LP64: private unnamed_addr constant [13 x i8] c"COMPLEX_PROP
 // CHECK-LP64: private unnamed_addr constant [17 x i8] c"setCOMPLEX_PROP
 
-// rdar: // 7351147
 @interface B
 @property (assign) _Complex float f_complex_ivar;
 @end

diff --git a/clang/test/CodeGenObjC/compound-literal-property-access.m b/clang/test/CodeGenObjC/compound-literal-property-access.m
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 %s -emit-llvm -triple x86_64-apple-darwin -o - | FileCheck %s
-// rdar://20407999
 
 typedef __attribute__((__ext_vector_type__(2))) float vector_float2;
 

diff --git a/clang/test/CodeGenObjC/constant-string-class.m b/clang/test/CodeGenObjC/constant-string-class.m
@@ -4,7 +4,6 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fno-constant-cfstrings -fconstant-string-class Foo -emit-llvm -o %t %s
 // RUN: FileCheck --check-prefix CHECK-NONFRAGILE < %t %s
 
-// rdar: // 8564463
 // PR6056
 
 @interface Object {

diff --git a/clang/test/CodeGenObjC/debug-info-block-line.m b/clang/test/CodeGenObjC/debug-info-block-line.m
@@ -1,7 +1,6 @@
 // REQUIRES: x86-registered-target
 // RUN: %clang_cc1 -emit-llvm -fblocks -fobjc-arc -debug-info-kind=limited -triple x86_64-apple-darwin10 %s -o - | FileCheck %s
 
-// rdar://11562117
 typedef unsigned int NSUInteger;
 typedef long NSInteger;
 typedef signed char BOOL;

diff --git a/clang/test/CodeGenObjC/debug-info-blocks.m b/clang/test/CodeGenObjC/debug-info-blocks.m
@@ -1,6 +1,5 @@
 // RUN: %clang_cc1 -emit-llvm -fblocks -debug-info-kind=limited  -triple x86_64-apple-darwin10 -fobjc-dispatch-method=mixed -x objective-c < %s -o - | FileCheck %s
 
-// rdar://problem/9279956
 // Test that we generate the proper debug location for a captured self.
 // The second half of this test is in llvm/tests/DebugInfo/debug-info-blocks.ll
 

diff --git a/clang/test/CodeGenObjC/debug-info-crash.m b/clang/test/CodeGenObjC/debug-info-crash.m
@@ -1,7 +1,6 @@
 // REQUIRES: x86-registered-target
 // RUN: %clang_cc1 -triple i386-apple-darwin10 -fobjc-runtime=macosx-fragile-10.5 -fblocks -debug-info-kind=limited -S %s -o -
 
-// rdar://7556129
 @implementation test
 - (void)wait {
   ^{};

diff --git a/clang/test/CodeGenObjC/debug-info-default-synth-ivar.m b/clang/test/CodeGenObjC/debug-info-default-synth-ivar.m
@@ -1,6 +1,5 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -debug-info-kind=limited %s -o %t
 // RUN: grep DW_TAG_member %t | count 5
-// rdar://8493239
 
 @class NSString;
 

diff --git a/clang/test/CodeGenObjC/debug-info-getter-name.m b/clang/test/CodeGenObjC/debug-info-getter-name.m
@@ -3,8 +3,6 @@
 
 // CHECK:  !DISubprogram(name: "-[InstanceVariablesEverywhereButTheInterface someString]"
 
-//rdar: //8498026
-
 @class NSString;
 
 @interface InstanceVariablesEverywhereButTheInterface 

diff --git a/clang/test/CodeGenObjC/debug-info-instancetype.m b/clang/test/CodeGenObjC/debug-info-instancetype.m
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -emit-llvm -debug-info-kind=limited -triple x86_64-apple-darwin10 %s -o - | FileCheck %s
-// rdar://problem/13359718
 // Substitute the actual type for a method returning instancetype.
 @interface NSObject
 + (id)alloc;

diff --git a/clang/test/CodeGenObjC/debug-info-lifetime-crash.m b/clang/test/CodeGenObjC/debug-info-lifetime-crash.m
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -triple arm-apple-ios -emit-llvm -debug-info-kind=limited -fblocks -fobjc-runtime=ios-7.0.0 -fobjc-arc %s -o - | FileCheck %s
-// rdar://problem/14990656
 @protocol NSObject
 - (id)copy;
 @end

diff --git a/clang/test/CodeGenObjC/debug-info-property-accessors.m b/clang/test/CodeGenObjC/debug-info-property-accessors.m
@@ -1,7 +1,5 @@
 // RUN: %clang_cc1 -emit-llvm -x objective-c -debug-info-kind=limited -triple x86_64-apple-macosx10.8.0 %s -o - | FileCheck %s
 //
-// rdar://problem/14035789
-//
 // Ensure we emit the names of explicit/renamed accessors even if they
 // are defined later in the implementation section.
 //

diff --git a/clang/test/CodeGenObjC/debug-info-selector.m b/clang/test/CodeGenObjC/debug-info-selector.m
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -emit-llvm  -debug-info-kind=limited %s -o - | FileCheck %s
-// Radar 8494540
 
 // CHECK: objc_selector
 @interface MyClass {

diff --git a/clang/test/CodeGenObjC/debug-info-static-var.m b/clang/test/CodeGenObjC/debug-info-static-var.m
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -debug-info-kind=limited -emit-llvm -o - %s | FileCheck %s
-// Radar 8801045
 // Do not emit AT_MIPS_linkage_name for static variable i
 
 // CHECK: !DIGlobalVariable(name: "i"

diff --git a/clang/test/CodeGenObjC/debug-property-synth.m b/clang/test/CodeGenObjC/debug-property-synth.m
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -triple %itanium_abi_triple -emit-llvm -debug-info-kind=limited %s -o - | FileCheck %s
-// rdar://problem/9468526
 //
 // Setting a breakpoint on a property should create breakpoints in
 // synthesized getters/setters.

diff --git a/clang/test/CodeGenObjC/debuginfo-properties.m b/clang/test/CodeGenObjC/debuginfo-properties.m
@@ -1,6 +1,5 @@
 // RUN: %clang_cc1 -debug-info-kind=limited -emit-llvm -triple x86_64-apple-darwin -o - %s | FileCheck %s
 // Check that we emit the correct method names for properties from a protocol.
-// rdar://problem/13798000
 @protocol NSObject
 - (id)init;
 @end

diff --git a/clang/test/CodeGenObjC/default-property-synthesis.m b/clang/test/CodeGenObjC/default-property-synthesis.m
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -o %t %s
-// rdar://7923851.
 
 // Superclass declares property. Subclass redeclares the same property.
 // Do not @synthesize-by-default in the subclass. P1

diff --git a/clang/test/CodeGenObjC/designated-initializers.m b/clang/test/CodeGenObjC/designated-initializers.m
@@ -1,6 +1,5 @@
 // RUN: %clang_cc1 -triple i386-unknown-unknown %s -emit-llvm -o - | FileCheck %s
 
-// <rdar://problem/10465114>
 struct overwrite_string_struct {
   char L[3];
   int M;

diff --git a/clang/test/CodeGenObjC/dot-syntax-2.m b/clang/test/CodeGenObjC/dot-syntax-2.m
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -emit-llvm -o %t %s
-// rdar: // 8062778
 
 @interface NSDictionary @end
 

diff --git a/clang/test/CodeGenObjC/encode-cstyle-method.m b/clang/test/CodeGenObjC/encode-cstyle-method.m
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fobjc-runtime=macosx-fragile-10.5  -emit-llvm -o - %s | FileCheck -check-prefix CHECK-LP64 %s
-// rdar: // 7445205
 
 @interface Foo 
 - (id)test:(id)one, id two;

diff --git a/clang/test/CodeGenObjC/encode-test-6.m b/clang/test/CodeGenObjC/encode-test-6.m
@@ -1,6 +1,5 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin -emit-llvm -o %t %s
 // RUN: FileCheck < %t %s
-// rdar://11777609
 
 typedef struct {} Z;
 
@@ -17,8 +16,6 @@ -(void)foo:(Z)a: (char*)b : (Z)c : (double) d {}
 // CHECK: private unnamed_addr constant [14 x i8] c"v16@0:8{?=}16
 // CHECK: private unnamed_addr constant [26 x i8] c"v32@0:8{?=}16*16{?=}24d24
 
-
-// rdar://13190095
 @interface NSObject @end
 
 @class BABugExample;
@@ -36,7 +33,6 @@ @implementation BABugExample
 
 // CHECK: private unnamed_addr constant [8 x i8] c"@16
 
-// rdar://14408244
 @class SCNCamera;
 typedef SCNCamera C3DCamera;
 typedef struct
@@ -54,7 +50,6 @@ @implementation SCNCamera
 @end
 // CHECK: private unnamed_addr constant [39 x i8] c"{?=\22presentationInstance\22@\22SCNCamera\22}\00"
 
-// rdar://16655340
 int i;
 typeof(@encode(typeof(i))) e = @encode(typeof(i));
 const char * Test(void)

diff --git a/clang/test/CodeGenObjC/encode-test.m b/clang/test/CodeGenObjC/encode-test.m
@@ -162,15 +162,13 @@ @implementation Derived1X @end
 // CHECK: @g10 ={{.*}} constant [14 x i8] c"{f=i[4{?=}]i}\00"
 const char g10[] = @encode(struct f);
 
-// rdar://9622422
 // CHECK: @g11 ={{.*}} constant [2 x i8] c"v\00"
 const char g11[] = @encode(void);
 
 // PR14628
 // CHECK: @g12 ={{.*}} constant [3 x i8] c"Ai\00"
 const char g12[] = @encode(_Atomic(int));
 
-// rdar://15824769
 id test_id = 0;
 Class test_class = 0;
 const char g13[] = @encode(__typeof__(*test_class));

diff --git a/clang/test/CodeGenObjC/exceptions-asm-attribute.m b/clang/test/CodeGenObjC/exceptions-asm-attribute.m
@@ -1,7 +1,6 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -Wno-objc-root-class -fexceptions -fobjc-exceptions -o %t %s
 // RUN: FileCheck -check-prefix=CHECK-X86_64 < %t %s
 // RUN: FileCheck -check-prefix=CHECK-EHTYPE < %t %s
-// rdar://16462586
 
 // We need exactly 3 of these.
 // CHECK-EHTYPE: @"OBJC_EHTYPE_$_MySecretNamespace.EH3"

diff --git a/clang/test/CodeGenObjC/exceptions-nonfragile.m b/clang/test/CodeGenObjC/exceptions-nonfragile.m
@@ -1,6 +1,5 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -fexceptions -fobjc-exceptions -o - %s | FileCheck %s
 
-// rdar://problem/8535238
 // CHECK: declare void @objc_exception_rethrow()
 
 void protos(void) {
@@ -16,7 +15,6 @@ void throwing(void) {
   @throw(@"error!");
 }
 
-// rdar://problem/9431547
 void die(void) __attribute__((nothrow, noreturn));
 void test2(void) {
   @try {

diff --git a/clang/test/CodeGenObjC/exceptions.m b/clang/test/CodeGenObjC/exceptions.m
@@ -1,6 +1,6 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fobjc-runtime=macosx-fragile-10.5 -emit-llvm -fobjc-exceptions -mllvm -simplifycfg-sink-common=false -O2 -o - %s | FileCheck %s
 //
-// <rdar://problem/7471679> [irgen] [eh] Exception code built with clang (x86_64) crashes
+// [irgen] [eh] Exception code built with clang (x86_64) crashes
 
 // Just check that we don't emit any dead blocks.
 @interface NSArray @end
@@ -37,7 +37,7 @@ void f1(void) {
 }
 
 // Test that modifications to local variables are respected under
-// optimization.  rdar://problem/8160285
+// optimization.
 
 // CHECK-LABEL: define{{.*}} i32 @f2()
 int f2(void) {
@@ -73,7 +73,7 @@ int f2(void) {
 }
 
 // Test that the cleanup destination is saved when entering a finally
-// block.  rdar://problem/8293901
+// block.
 // CHECK-LABEL: define{{.*}} void @f3()
 void f3(void) {
   extern void f3_helper(int, int*);
@@ -125,7 +125,6 @@ void f3(void) {
   f3_helper(4, &x);
 }
 
-// rdar://problem/8440970
 void f4(void) {
   extern void f4_help(int);
 

diff --git a/clang/test/CodeGenObjC/extended-block-signature-encode.m b/clang/test/CodeGenObjC/extended-block-signature-encode.m
@@ -1,6 +1,5 @@
 // RUN: %clang_cc1 -fblocks -triple x86_64-apple-darwin -fencode-extended-block-signature -emit-llvm %s -o - | FileCheck %s
 // RUN: %clang_cc1 -fblocks -triple x86_64-apple-darwin -emit-llvm %s -o - | FileCheck %s -check-prefix=CHECK-BRIEF
-// rdar://12109031
 
 @class NSString, NSArray;
 

diff --git a/clang/test/CodeGenObjC/extern-void-class-decl.m b/clang/test/CodeGenObjC/extern-void-class-decl.m
@@ -1,7 +1,5 @@
 // RUN: %clang_cc1 -triple x86_64-apple-macosx10.14.0 %s -emit-llvm -o - | FileCheck %s
 
-// rdar://45077269
-
 extern void OBJC_CLASS_$_f;
 Class c = (Class)&OBJC_CLASS_$_f;
 

diff --git a/clang/test/CodeGenObjC/for-in.m b/clang/test/CodeGenObjC/for-in.m
@@ -56,7 +56,6 @@ void t1(void) {
   }
 }
 
-// rdar://problem/9027663
 void t2(NSArray *array) {
   for (NSArray *array in array) { // expected-warning {{collection expression type 'NSArray *' may not respond}}
   }

diff --git a/clang/test/CodeGenObjC/forward-decl-param.m b/clang/test/CodeGenObjC/forward-decl-param.m
@@ -1,7 +1,6 @@
 // RUN: %clang_cc1 %s -emit-llvm -o - 
 
-// <rdar://problem/9123036> crash due to forward-declared struct in
-// protocol method parameter.
+// crash due to forward-declared struct in protocol method parameter.
 
 @protocol P
 - (void) A:(struct z) z;

diff --git a/clang/test/CodeGenObjC/forward-protocol-metadata-symbols.m b/clang/test/CodeGenObjC/forward-protocol-metadata-symbols.m
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fobjc-runtime=macosx-10.14 -emit-llvm -x objective-c %s -o - | FileCheck %s
-// rdar://16203115
 
 @interface NSObject @end
 

diff --git a/clang/test/CodeGenObjC/gc-weak-attribute.m b/clang/test/CodeGenObjC/gc-weak-attribute.m
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fobjc-gc -emit-llvm -o - %s | FileCheck %s
-// rdar://10073896
 
 @interface I
 {

diff --git a/clang/test/CodeGenObjC/getter-property-mismatch.m b/clang/test/CodeGenObjC/getter-property-mismatch.m
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 %s -emit-llvm -triple x86_64-apple-darwin -o - | FileCheck %s
-// rdar://11323676
 
 @interface NSDictionary @end
 @interface NSMutableDictionary : NSDictionary@end@interface CalDAVAddManagedAttachmentsTaskGroup {

diff --git a/clang/test/CodeGenObjC/getter-property-type-mismatch.m b/clang/test/CodeGenObjC/getter-property-type-mismatch.m
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin10  -emit-llvm -o - %s | FileCheck %s
-// rdar://11515196
 
 @interface NSArray @end
 

diff --git a/clang/test/CodeGenObjC/id-isa-codegen.m b/clang/test/CodeGenObjC/id-isa-codegen.m
@@ -27,7 +27,6 @@ - (void)meth : (id)object  : (id)src_object {
 @end
 
 
-// rdar 7470820
 static Class MyClass;
 
 Class Test(const void *inObject1) {
@@ -36,7 +35,6 @@ Class Test(const void *inObject1) {
   return (id)0;
 }
 
-// rdar 7609722
 @interface Foo { 
 @public 
   id isa; 
@@ -50,7 +48,6 @@ id Test2(void) {
     return [Foo method]->isa;
 }
 
-// rdar 7709015
 @interface Cat   {}
 @end
 

diff --git a/clang/test/CodeGenObjC/instance-method-metadata.m b/clang/test/CodeGenObjC/instance-method-metadata.m
@@ -1,8 +1,6 @@
 // REQUIRES: x86-registered-target
 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -S %s -o - | FileCheck %s
 
-// rdar://9072317
-
 /** The problem looks like clang getting confused when a single translation unit 
     contains a protocol with a property and two classes that implement that protocol 
     and synthesize the property.

diff --git a/clang/test/CodeGenObjC/ivar-base-as-invariant-load.m b/clang/test/CodeGenObjC/ivar-base-as-invariant-load.m
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -emit-llvm  -triple x86_64-apple-darwin -x objective-c %s -o - | FileCheck %s
-// rdar://10840980
 
 @interface A {
         struct {

diff --git a/clang/test/CodeGenObjC/ivar-layout-array0-struct.m b/clang/test/CodeGenObjC/ivar-layout-array0-struct.m
@@ -2,7 +2,6 @@
 // RUN: %clang_cc1 -fobjc-gc -triple x86_64-apple-darwin -fobjc-runtime=macosx-fragile-10.5 -S %s -o %t-64.s
 // RUN: FileCheck -check-prefix CHECK-LP64 --input-file=%t-64.s %s
 
-// rdar://8800513
 @interface NSObject {
   id isa;
 }

diff --git a/clang/test/CodeGenObjC/ivar-layout-flexible-array.m b/clang/test/CodeGenObjC/ivar-layout-flexible-array.m
@@ -1,6 +1,5 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin -Wno-objc-root-class -fobjc-arc -emit-llvm -o - %s | FileCheck %s
 
-// rdar://problem/21054495
 @interface FlexibleArrayMember {
   char flexible_array[][4][2];
 }

diff --git a/clang/test/CodeGenObjC/ivar-layout-nonfragile-abi2.m b/clang/test/CodeGenObjC/ivar-layout-nonfragile-abi2.m
@@ -1,6 +1,5 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -o %t %s
 // RUN: %clang_cc1 -x objective-c++ -triple x86_64-apple-darwin10 -emit-llvm -o %t %s
-// rdar: // 7824380
 
 @interface Super {
   int ivar_super_a : 5;

diff --git a/clang/test/CodeGenObjC/ivars.m b/clang/test/CodeGenObjC/ivars.m
@@ -2,7 +2,6 @@
 // RUN: %clang_cc1 -triple i386-apple-darwin9 -fobjc-runtime=macosx-fragile-10.5 -emit-llvm -o - %s
 // RUN: %clang_cc1 -fobjc-gc -emit-llvm -o - %s
 
-// rdar://6800926
 @interface ITF {
 @public
   unsigned field :1 ;
@@ -14,7 +13,6 @@ void foo(ITF *P) {
   P->boolfield = 1;
 }
 
-// rdar://8368320
 @interface R {
   struct {
     union {

diff --git a/clang/test/CodeGenObjC/local-static-block.m b/clang/test/CodeGenObjC/local-static-block.m
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -fblocks -triple x86_64-apple-darwin -fobjc-runtime=macosx-fragile-10.5 -emit-llvm -o - %s | FileCheck %s
-// rdar: // 8390455
 
 // CHECK: @ArrayRecurs = internal global
 // CHECK: @FUNC.ArrayRecurs = internal global

diff --git a/clang/test/CodeGenObjC/messages-2.m b/clang/test/CodeGenObjC/messages-2.m
@@ -144,7 +144,6 @@ -(const float) returnAConstFloat {
 }
 @end
 
-// rdar://problem/7854674
 // CHECK:    define{{.*}} void @test0(ptr
 // CHECK-NF: define{{.*}} void @test0(ptr
 void test0(A *x) {

diff --git a/clang/test/CodeGenObjC/misc-atomic-property.m b/clang/test/CodeGenObjC/misc-atomic-property.m
@@ -1,6 +1,5 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin10  -emit-llvm -o - %s | FileCheck %s
 // RUN: %clang_cc1 -triple i386-apple-darwin9 -fobjc-runtime=macosx-fragile-10.5  -emit-llvm -o - %s | FileCheck %s
-// rdar: //8808439
 
 typedef struct {
 #ifdef __LP64__

diff --git a/clang/test/CodeGenObjC/mrr-autorelease.m b/clang/test/CodeGenObjC/mrr-autorelease.m
@@ -1,7 +1,5 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -o - %s | FileCheck %s
 // RUN: %clang_cc1 -triple i386-apple-darwin10 -fobjc-runtime=macosx-fragile-10.5 -emit-llvm -o - %s | FileCheck %s
-// rdar://8881826
-// rdar://9423507
 
 @interface I
 {

diff --git a/clang/test/CodeGenObjC/mrr-captured-block-var-inlined-layout.m b/clang/test/CodeGenObjC/mrr-captured-block-var-inlined-layout.m
@@ -2,8 +2,6 @@
 // RUN: FileCheck --input-file=%t-64.layout %s
 // RUN: %clang_cc1 -fblocks -fobjc-runtime-has-weak -fobjc-arc -triple i386-apple-darwin -print-ivar-layout -emit-llvm -o /dev/null %s > %t-32.layout
 // RUN: FileCheck --input-file=%t-32.layout %s
-// rdar://12184410
-// rdar://12184410
 
 void x(id y) {}
 void y(int a) {}

diff --git a/clang/test/CodeGenObjC/next-objc-dispatch.m b/clang/test/CodeGenObjC/next-objc-dispatch.m
@@ -13,8 +13,6 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin9 -emit-llvm -o - %s    \
 // RUN:   -fobjc-dispatch-method=mixed | \
 // RUN:   FileCheck -check-prefix CHECK-NONFRAGILE_MIXED %s
-//
-// <rdar://problem/7866951>
 
 // There are basically four ways that we end up doing message dispatch for the
 // NeXT runtime. They are:

diff --git a/clang/test/CodeGenObjC/no-vararg-messaging.m b/clang/test/CodeGenObjC/no-vararg-messaging.m
@@ -1,6 +1,5 @@
 // REQUIRES: x86-registered-target
 // RUN: %clang_cc1 -triple x86_64-apple-darwin10  -S -o - %s | FileCheck %s
-// rdar://9048030
 
 @interface Foo
 +(id)alloc;

diff --git a/clang/test/CodeGenObjC/ns_consume_null_check.m b/clang/test/CodeGenObjC/ns_consume_null_check.m
@@ -12,7 +12,6 @@ +(instancetype)m0:(id) __attribute__((ns_consumed)) object;
 
 MyObject *x;
 
-// rdar://10444476
 void test0(void) {
   id obj = [NSObject new];
   [x isEqual : obj];
@@ -29,7 +28,6 @@ void test0(void) {
 // CHECK:       phi i8 [ [[CALL]], {{%.*}} ], [ 0, {{%.*}} ]
 
 // Ensure that we build PHIs correctly in the presence of cleanups.
-// rdar://12046763
 void test1(void) {
   id obj = [NSObject new];
   __weak id weakObj = obj;

diff --git a/clang/test/CodeGenObjC/null-check-bool-ret.m b/clang/test/CodeGenObjC/null-check-bool-ret.m
@@ -1,7 +1,5 @@
 // RUN: %clang_cc1 -triple arm64e-apple-ios15.0.0 -emit-llvm-bc -fobjc-arc -disable-llvm-passes %s -emit-llvm -o - | FileCheck %s
 
-// rdar://73361264
-
 @protocol NSObject
 @end
 

diff --git a/clang/test/CodeGenObjC/null-objc-empty-vtable.m b/clang/test/CodeGenObjC/null-objc-empty-vtable.m
@@ -1,6 +1,5 @@
 // RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -emit-llvm -o - %s | FileCheck -check-prefix CHECK-OSX %s
 // RUN: %clang_cc1 -triple thumbv7-apple-ios3.0.0  -emit-llvm -o - %s | FileCheck -check-prefix CHECK-IOS %s
-// rdar://14802916
 
 @interface I
 @end

diff --git a/clang/test/CodeGenObjC/objc-alloc-init.m b/clang/test/CodeGenObjC/objc-alloc-init.m
@@ -49,7 +49,6 @@ -(void)instanceMeth {
 }
 @end
 
-// rdar://48247290
 @interface Base
 -(instancetype)init;
 @end

diff --git a/clang/test/CodeGenObjC/objc-asm-attribute-test.m b/clang/test/CodeGenObjC/objc-asm-attribute-test.m
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -emit-llvm -triple x86_64-apple-darwin %s -o - | FileCheck %s
-// rdar://16462586
 
 __attribute__((objc_runtime_name("MySecretNamespace.Protocol")))
 @protocol Protocol
@@ -44,7 +43,6 @@ + (void) ClsMethodP {}
 + (void) ClsMethodP2 {}
 @end
 
-// rdar://16877359
 __attribute__((objc_runtime_name("foo")))
 @interface SLREarth
 - (instancetype)init;

diff --git a/clang/test/CodeGenObjC/objc-dictionary-literal.m b/clang/test/CodeGenObjC/objc-dictionary-literal.m
@@ -1,6 +1,5 @@
 // RUN: %clang_cc1 -x objective-c -triple x86_64-apple-darwin10 -fblocks -emit-llvm %s -o /dev/null
 // RUN: %clang_cc1 -x objective-c++ -triple x86_64-apple-darwin10 -fblocks -emit-llvm %s -o /dev/null
-// rdar://10614657
 
 @interface NSNumber
 + (NSNumber *)numberWithChar:(char)value;

diff --git a/clang/test/CodeGenObjC/objc-literal-tests.m b/clang/test/CodeGenObjC/objc-literal-tests.m
@@ -1,6 +1,5 @@
 // RUN: %clang_cc1 -x objective-c -triple x86_64-apple-darwin10 -fblocks -emit-llvm %s -o - | FileCheck %s
 // RUN: %clang_cc1 -x objective-c++ -triple x86_64-apple-darwin10 -fblocks -emit-llvm %s -o - | FileCheck %s
-// rdar://10111397
 
 #if __has_feature(objc_bool)
 #define YES __objc_yes
@@ -86,7 +85,6 @@ int main(void) {
   return __objc_yes == __objc_no;
 }
 
-// rdar://10579122
 typedef BOOL (^foo)(void);
 extern void bar(foo a);
 

diff --git a/clang/test/CodeGenObjC/objc2-nonfragile-abi-impl.m b/clang/test/CodeGenObjC/objc2-nonfragile-abi-impl.m
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -o %t %s
-// rdar://7547942.
 
 @interface Base @end
 

diff --git a/clang/test/CodeGenObjC/objc2-protocol-metadata.m b/clang/test/CodeGenObjC/objc2-protocol-metadata.m
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -triple x86_64-apple-macosx10.10 -emit-llvm -o - %s | FileCheck %s
-// rdar://20286356
 
 @protocol P1
 - InstP;

diff --git a/clang/test/CodeGenObjC/objc2-strong-cast-block-import.m b/clang/test/CodeGenObjC/objc2-strong-cast-block-import.m
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fobjc-gc-only -fblocks  -emit-llvm -o - %s | FileCheck %s
-// rdar://10150823
 
 @interface Test {
 @package

diff --git a/clang/test/CodeGenObjC/objc2-weak-ivar-debug.m b/clang/test/CodeGenObjC/objc2-weak-ivar-debug.m
@@ -3,7 +3,6 @@
 // RUN: %clang_cc1 -x objective-c++ -triple x86_64-apple-darwin9 -fobjc-runtime=macosx-fragile-10.5 -fobjc-gc -debug-info-kind=limited -emit-llvm -o - %s
 // RUN: %clang_cc1 -x objective-c++ -triple i386-apple-darwin9 -fobjc-runtime=macosx-fragile-10.5 -fobjc-gc -debug-info-kind=limited -emit-llvm -o - %s
 
-// rdar://7252252
 @interface Loop {
 @public
   __weak Loop *_loop;

diff --git a/clang/test/CodeGenObjC/objc2-write-barrier-5.m b/clang/test/CodeGenObjC/objc2-write-barrier-5.m
@@ -28,7 +28,6 @@ - (id)init {
 
 @end
 
-// rdar://10191569
 @interface I
 {
   struct S {

diff --git a/clang/test/CodeGenObjC/optimize-ivar-offset-load.m b/clang/test/CodeGenObjC/optimize-ivar-offset-load.m
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin10  -O0 -emit-llvm %s -o -  | FileCheck %s
-// rdar://16095748
 
 @interface MyNSObject 
 @end

diff --git a/clang/test/CodeGenObjC/optimized-setter-ios-device.m b/clang/test/CodeGenObjC/optimized-setter-ios-device.m
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 %s -emit-llvm -fobjc-runtime=ios-6.0.0 -triple thumbv7-apple-ios6.0.0 -o - | FileCheck %s
-// rdar://11915017
 
 @interface I
 // void objc_setProperty_nonatomic(id self, SEL _cmd, id newValue, ptrdiff_t offset);

diff --git a/clang/test/CodeGenObjC/optimized-setter.m b/clang/test/CodeGenObjC/optimized-setter.m
@@ -1,7 +1,6 @@
 // RUN: %clang_cc1 %s -emit-llvm -fobjc-runtime=macosx-10.8 -triple x86_64-apple-macosx10.8.0 -o - | FileCheck %s
 // RUN: %clang_cc1 %s -emit-llvm -fobjc-runtime=ios-6.0.0  -triple x86_64-apple-ios6.0.0 -o - | FileCheck %s
 // RUN: %clang_cc1 %s -emit-llvm -fobjc-runtime=gnustep-1.7 -triple x86_64-unknown-freebsd -o - | FileCheck %s
-// rdar://10179974
 
 @interface I
 // void objc_setProperty_nonatomic(id self, SEL _cmd, id newValue, ptrdiff_t offset);

diff --git a/clang/test/CodeGenObjC/os_log.m b/clang/test/CodeGenObjC/os_log.m
@@ -6,8 +6,6 @@
 // cleanup. This way we make sure the object will not be released until the
 // end of the full expression.
 
-// rdar://problem/24528966
-
 @interface C
 - (id)m0;
 + (id)m1;

diff --git a/clang/test/CodeGenObjC/overloadable.m b/clang/test/CodeGenObjC/overloadable.m
@@ -1,4 +1,3 @@
-// rdar://6657613
 // RUN: %clang_cc1 -triple %itanium_abi_triple -emit-llvm %s -o - | FileCheck %s
 
 @class C;

diff --git a/clang/test/CodeGenObjC/private-extern-selector-reference.m b/clang/test/CodeGenObjC/private-extern-selector-reference.m
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -triple x86_64-apple-ios6.0.0 -emit-llvm -o - %s | FileCheck %s
-// rdar://18150301
 
 @interface Query
 + (void)_configureCI;

diff --git a/clang/test/CodeGenObjC/property-agrr-getter.m b/clang/test/CodeGenObjC/property-agrr-getter.m
@@ -37,7 +37,6 @@ float f (void)
   return (obj.size).width;
 }
 
-// rdar://problem/9272392
 void test3(AnObject *obj) {
   obj.size;
   (void) obj.size;

diff --git a/clang/test/CodeGenObjC/property-array-type.m b/clang/test/CodeGenObjC/property-array-type.m
@@ -1,5 +1,4 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin10  -emit-llvm -o - %s | FileCheck %s
-// rdar://15610943
 
 struct _GLKMatrix4
 {

diff --git a/clang/test/CodeGenObjC/property-category-impl.m b/clang/test/CodeGenObjC/property-category-impl.m
@@ -1,7 +1,5 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin10  -emit-llvm -o - %s | FileCheck %s
 
-// rdar : // 8093297
-
 @interface Foo @end
 
 @protocol Proto

diff --git a/clang/test/CodeGenObjC/property-ref-cast-to-void.m b/clang/test/CodeGenObjC/property-ref-cast-to-void.m
@@ -1,7 +1,6 @@
 // RUN: %clang_cc1 -no-enable-noundef-analysis -triple x86_64-apple-darwin9 -fobjc-runtime=macosx-fragile-10.5 -emit-llvm -o - %s | FileCheck %s
 // RUN: %clang_cc1 -no-enable-noundef-analysis -x objective-c++ -triple x86_64-apple-darwin9 -fobjc-runtime=macosx-fragile-10.5 -emit-llvm -o - %s | FileCheck %s
 
-// rdar: // 8399655
 @interface TestClass
 @property (readonly) int myProperty;
 - (int)myProperty;
-Original file line number
+Diff line change
@@ Expand Up / @@ -87,7 +87,6 @@ void t6(void) { @@
       --ci1;
     }
-    // <rdar://problem/7958272>
     double t7(double _Complex c) {
       return __builtin_fabs(__real__(c));
     }
@@ Expand Down @@