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[CodeGen][ObjC] Remove the leading l_ from ObjC symbols and make
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private symbols in the __DATA segment internal.

This prevents the linker from removing the symbol names. Keeping the
symbols visible enables tools to collect various information about the
symbols, for example, tools that discover whether or not a symbol gets
dirtied.

rdar://problem/48887111

Differential Revision: https://reviews.llvm.org/D61454

llvm-svn: 360359
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@ahatanaka @MrSidims
ahatanaka authored and MrSidims committed May 24, 2019
1 parent 8df493f commit b124b0f
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Showing 24 changed files with 232 additions and 214 deletions.
185 changes: 99 additions & 86 deletions clang/lib/CodeGen/CGObjCMac.cpp
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4 changes: 2 additions & 2 deletions clang/test/CodeGenObjC/arc.m
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Expand Up @@ -634,11 +634,11 @@ void test21(unsigned n) {
// 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: @"\01l_OBJC_CLASS_RO_$_Test23" = private global [[RO_T:%.*]] { i32 390,
// CHECK-GLOBALS: @"_OBJC_CLASS_RO_$_Test23" = internal global [[RO_T:%.*]] { i32 390,
@interface Test23 { id x; } @end
@implementation Test23 @end

// CHECK-GLOBALS: @"\01l_OBJC_CLASS_RO_$_Test24" = private global [[RO_T:%.*]] { i32 130,
// CHECK-GLOBALS: @"_OBJC_CLASS_RO_$_Test24" = internal global [[RO_T:%.*]] { i32 130,
@interface Test24 {} @end
@implementation Test24 @end

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12 changes: 6 additions & 6 deletions clang/test/CodeGenObjC/boxing.m
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Expand Up @@ -57,17 +57,17 @@ + (id)stringWithUTF8String:(const char *)nullTerminatedCString;
// CHECK: [[STRUCT_NSCONSTANT_STRING_TAG:%.*]] = type { i32*, i32, i8*, i64 }

// CHECK: [[WithIntMeth:@.*]] = private unnamed_addr constant [15 x i8] c"numberWithInt:\00"
// CHECK: [[WithIntSEL:@.*]] = private externally_initialized global i8* getelementptr inbounds ([15 x i8], [15 x i8]* [[WithIntMeth]]
// CHECK: [[WithIntSEL:@.*]] = internal externally_initialized global i8* getelementptr inbounds ([15 x i8], [15 x i8]* [[WithIntMeth]]
// CHECK: [[WithCharMeth:@.*]] = private unnamed_addr constant [16 x i8] c"numberWithChar:\00"
// CHECK: [[WithCharSEL:@.*]] = private externally_initialized global i8* getelementptr inbounds ([16 x i8], [16 x i8]* [[WithCharMeth]]
// CHECK: [[WithCharSEL:@.*]] = internal externally_initialized global i8* getelementptr inbounds ([16 x i8], [16 x i8]* [[WithCharMeth]]
// CHECK: [[WithBoolMeth:@.*]] = private unnamed_addr constant [16 x i8] c"numberWithBool:\00"
// CHECK: [[WithBoolSEL:@.*]] = private externally_initialized global i8* getelementptr inbounds ([16 x i8], [16 x i8]* [[WithBoolMeth]]
// CHECK: [[WithBoolSEL:@.*]] = internal externally_initialized global i8* getelementptr inbounds ([16 x i8], [16 x i8]* [[WithBoolMeth]]
// CHECK: [[WithIntegerMeth:@.*]] = private unnamed_addr constant [19 x i8] c"numberWithInteger:\00"
// CHECK: [[WithIntegerSEL:@.*]] = private externally_initialized global i8* getelementptr inbounds ([19 x i8], [19 x i8]* [[WithIntegerMeth]]
// CHECK: [[WithIntegerSEL:@.*]] = internal externally_initialized global i8* getelementptr inbounds ([19 x i8], [19 x i8]* [[WithIntegerMeth]]
// CHECK: [[WithUnsignedIntegerMeth:@.*]] = private unnamed_addr constant [27 x i8] c"numberWithUnsignedInteger:\00"
// CHECK: [[WithUnsignedIntegerSEL:@.*]] = private externally_initialized global i8* getelementptr inbounds ([27 x i8], [27 x i8]* [[WithUnsignedIntegerMeth]]
// CHECK: [[WithUnsignedIntegerSEL:@.*]] = internal externally_initialized global i8* getelementptr inbounds ([27 x i8], [27 x i8]* [[WithUnsignedIntegerMeth]]
// CHECK: [[stringWithUTF8StringMeth:@.*]] = private unnamed_addr constant [22 x i8] c"stringWithUTF8String:\00"
// CHECK: [[stringWithUTF8StringSEL:@.*]] = private externally_initialized global i8* getelementptr inbounds ([22 x i8], [22 x i8]* [[stringWithUTF8StringMeth]]
// CHECK: [[stringWithUTF8StringSEL:@.*]] = internal externally_initialized global i8* getelementptr inbounds ([22 x i8], [22 x i8]* [[stringWithUTF8StringMeth]]
// CHECK: [[STR0:.*]] = private unnamed_addr constant [4 x i8] c"abc\00", section "__TEXT,__cstring,cstring_literals", align 1
// CHECK: [[UNNAMED_CFSTRING:.*]] = private global [[STRUCT_NSCONSTANT_STRING_TAG]] { i32* getelementptr inbounds ([0 x i32], [0 x i32]* @__CFConstantStringClassReference, i32 0, i32 0), i32 1992, i8* getelementptr inbounds ([4 x i8], [4 x i8]* [[STR0]], i32 0, i32 0), i64 3 }, section "__DATA,__cfstring", align 8

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4 changes: 2 additions & 2 deletions clang/test/CodeGenObjC/exceptions-asm-attribute.m
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Expand Up @@ -15,7 +15,7 @@
// CHECK-X86_64: @"OBJC_EHTYPE_$_MySecretNamespace.EH1" = weak global {{.*}}, align 8
// CHECK-X86_64: @"OBJC_EHTYPE_$_MySecretNamespace.EH2" = external global
// CHECK-X86_64: @"OBJC_EHTYPE_$_MySecretNamespace.EH3" = global {{.*}}, section "__DATA,__objc_const", align 8
// CHECK-X86_64: @"OBJC_LABEL_CLASS_$" = private global {{.*}}, section "__DATA,__objc_classlist,regular,no_dead_strip", align 8
// CHECK-X86_64: @"OBJC_LABEL_CLASS_$" = internal global {{.*}}, section "__DATA,__objc_classlist,regular,no_dead_strip", align 8
// CHECK-X86_64: define internal void @"\01-[A im0]"
// CHECK-X86_64: define internal void @"\01-[A(Cat) im1]"

Expand All @@ -39,7 +39,7 @@
// CHECK-ARMV6: @"OBJC_EHTYPE_$_MySecretNamespace.EH1" = weak global {{.*}}, align 4
// CHECK-ARMV6: @"OBJC_EHTYPE_$_MySecretNamespace.EH2" = external global
// CHECK-ARMV6: @"OBJC_EHTYPE_$_MySecretNamespace.EH3" = global {{.*}}, section "__DATA,__objc_const", align 4
// CHECK-ARMV6: @"OBJC_LABEL_CLASS_$" = private global {{.*}}, section "__DATA,__objc_classlist,regular,no_dead_strip", align 4
// CHECK-ARMV6: @"OBJC_LABEL_CLASS_$" = internal global {{.*}}, section "__DATA,__objc_classlist,regular,no_dead_strip", align 4
// CHECK-ARMV6: define internal void @"\01-[A im0]"
// CHECK-ARMV6: define internal void @"\01-[A(Cat) im1]"

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7 changes: 4 additions & 3 deletions clang/test/CodeGenObjC/externally-initialized-selectors.m
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@@ -1,7 +1,8 @@
// RUN: %clang_cc1 -fobjc-runtime=macosx-fragile-10.5 -o - -emit-llvm %s | FileCheck %s
// RUN: %clang_cc1 -o - -emit-llvm %s | FileCheck %s
// RUN: %clang_cc1 -fobjc-runtime=macosx-fragile-10.5 -o - -emit-llvm %s | FileCheck -check-prefix=FRAGILE %s
// RUN: %clang_cc1 -o - -emit-llvm %s | FileCheck -check-prefix=NONFRAGILE %s

// CHECK: @OBJC_SELECTOR_REFERENCES_ = private externally_initialized global
// NONFRAGILE: @OBJC_SELECTOR_REFERENCES_ = internal externally_initialized global
// FRAGILE: @OBJC_SELECTOR_REFERENCES_ = private externally_initialized global

void test(id x) {
[x doSomething];
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10 changes: 5 additions & 5 deletions clang/test/CodeGenObjC/forward-protocol-metadata-symbols.m
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Expand Up @@ -20,20 +20,20 @@ int main() {

// CHECK: @"_OBJC_PROTOCOL_$_P0" = weak hidden global
// CHECK: @"_OBJC_LABEL_PROTOCOL_$_P0" = weak hidden global
// CHECK: @"\01l_OBJC_CLASS_PROTOCOLS_$_A" = private global
// CHECK: @"\01l_OBJC_PROTOCOL_REFERENCE_$_P0" = weak hidden global
// CHECK: @"_OBJC_CLASS_PROTOCOLS_$_A" = internal global
// CHECK: @"_OBJC_PROTOCOL_REFERENCE_$_P0" = weak hidden global

// CHECK: llvm.used = appending global [3 x i8*]
// CHECK-SAME: "_OBJC_PROTOCOL_$_P0"
// CHECK-SAME: "_OBJC_LABEL_PROTOCOL_$_P0"
// CHECK-SAME: "\01l_OBJC_PROTOCOL_REFERENCE_$_P0"
// CHECK-SAME: "_OBJC_PROTOCOL_REFERENCE_$_P0"

// CHECK: llvm.compiler.used = appending global [7 x i8*]
// CHECK-SAME: OBJC_CLASS_NAME_
// CHECK-SAME: OBJC_METH_VAR_NAME_
// CHECK-SAME: OBJC_METH_VAR_TYPE_
// CHECK-SAME: "\01l_OBJC_$_CLASS_METHODS_A"
// CHECK-SAME: "_OBJC_$_CLASS_METHODS_A"
// CHECK-SAME: OBJC_CLASS_NAME_.1
// CHECK-SAME: "\01l_OBJC_CLASS_PROTOCOLS_$_A"
// CHECK-SAME: "_OBJC_CLASS_PROTOCOLS_$_A"
// CHECK-SAME: "OBJC_LABEL_CLASS_$"
// CHECK-SAME: section "llvm.metadata"
2 changes: 1 addition & 1 deletion clang/test/CodeGenObjC/instance-method-metadata.m
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Expand Up @@ -27,7 +27,7 @@ @implementation Bar
@synthesize prop;
@end

// CHECK: l_OBJC_$_INSTANCE_METHODS_Bar:
// CHECK: _OBJC_$_INSTANCE_METHODS_Bar:
// CHECK-NEXT: .long 24
// CHECK-NEXT: .long 2
// CHECK-NEXT: .quad L_OBJC_METH_VAR_NAME_
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18 changes: 9 additions & 9 deletions clang/test/CodeGenObjC/interface-layout-64.m
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Expand Up @@ -2,24 +2,24 @@

// CHECK: @"OBJC_IVAR_$_I3._iv2" = global i64 8, section "__DATA, __objc_ivar", align 8
// CHECK: @"OBJC_IVAR_$_I3._iv3" = global i64 12, section "__DATA, __objc_ivar", align 8
// CHECK: _OBJC_CLASS_RO_$_I3" = private global {{.*}} { i32 0, i32 8, i32 13
// CHECK: _OBJC_CLASS_RO_$_I3" = internal global {{.*}} { i32 0, i32 8, i32 13
// CHECK: @"OBJC_IVAR_$_I4._iv4" = global i64 13, section "__DATA, __objc_ivar", align 8
// CHECK: _OBJC_CLASS_RO_$_I4" = private global {{.*}} { i32 0, i32 13, i32 14, {{.*}}
// CHECK: _OBJC_CLASS_RO_$_I4" = internal global {{.*}} { i32 0, i32 13, i32 14, {{.*}}
// CHECK: @"OBJC_IVAR_$_I5._iv6_synth" = hidden global i64 16, section "__DATA, __objc_ivar", align 8
// CHECK: @"OBJC_IVAR_$_I5._iv7_synth" = hidden global i64 20, section "__DATA, __objc_ivar", align 8
// CHECK: @"OBJC_IVAR_$_I5._iv5" = global i64 14, section "__DATA, __objc_ivar", align 8
// CHECK: _OBJC_CLASS_RO_$_I5" = private global {{.*}} { i32 0, i32 14, i32 24, {{.*}}
// CHECK: _OBJC_CLASS_RO_$_I5" = internal global {{.*}} { i32 0, i32 14, i32 24, {{.*}}
// CHECK: @"OBJC_IVAR_$_I6.iv0" = global i64 0, section "__DATA, __objc_ivar", align 8
// CHECK: _OBJC_CLASS_RO_$_I6" = private global {{.*}} { i32 2, i32 0, i32 1, {{.*}}
// CHECK: _OBJC_CLASS_RO_$_I6" = internal global {{.*}} { i32 2, i32 0, i32 1, {{.*}}
// CHECK: @"OBJC_IVAR_$_I8.b" = global i64 8, section "__DATA, __objc_ivar", align 8
// CHECK: _OBJC_CLASS_RO_$_I8" = private global {{.*}} { i32 0, i32 8, i32 16, {{.*}}
// CHECK: _OBJC_CLASS_RO_$_I8" = internal global {{.*}} { i32 0, i32 8, i32 16, {{.*}}
// CHECK: @"OBJC_IVAR_$_I9.iv0" = global i64 0, section "__DATA, __objc_ivar", align 8
// CHECK: _OBJC_CLASS_RO_$_I9" = private global {{.*}} { i32 2, i32 0, i32 4, {{.*}}
// CHECK: _OBJC_CLASS_RO_$_I9" = internal global {{.*}} { i32 2, i32 0, i32 4, {{.*}}
// CHECK: @"OBJC_IVAR_$_I10.iv1" = global i64 4, section "__DATA, __objc_ivar", align 8
// CHECK: _OBJC_CLASS_RO_$_I10" = private global {{.*}} { i32 0, i32 4, i32 5, {{.*}}
// CHECK: _OBJC_CLASS_RO_$_I11" = private global {{.*}} { i32 0, i32 5, i32 5, {{.*}}
// CHECK: _OBJC_CLASS_RO_$_I10" = internal global {{.*}} { i32 0, i32 4, i32 5, {{.*}}
// CHECK: _OBJC_CLASS_RO_$_I11" = internal global {{.*}} { i32 0, i32 5, i32 5, {{.*}}
// CHECK: @"OBJC_IVAR_$_I12.iv2" = global i64 8, section "__DATA, __objc_ivar", align 8
// CHECK: _OBJC_CLASS_RO_$_I12" = private global {{.*}} { i32 0, i32 8, i32 12, {{.*}}
// CHECK: _OBJC_CLASS_RO_$_I12" = internal global {{.*}} { i32 0, i32 8, i32 12, {{.*}}

/*
Compare to:
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32 changes: 16 additions & 16 deletions clang/test/CodeGenObjC/metadata-class-properties.m
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Expand Up @@ -2,33 +2,33 @@
// RUN: %clang_cc1 -triple x86_64-apple-macosx10.10 -emit-llvm -o - %s | FileCheck -check-prefix=CHECK-NULL %s
// RUN: %clang_cc1 -triple x86_64-apple-macosx10.11 -emit-llvm -o - -fobjc-runtime=macosx-fragile-10.5 %s | FileCheck -check-prefix=CHECK-FRAGILE %s

// CHECK: @"\01l_OBJC_$_CLASS_PROP_LIST_Proto" = private global {{.*}} section "__DATA, __objc_const", align 8
// CHECK: @"_OBJC_PROTOCOL_$_Proto" = {{.*}} global %struct._protocol_t { {{.*}} i32 96, i32 {{.*}} @"\01l_OBJC_$_CLASS_PROP_LIST_Proto" {{.*}} }
// CHECK: @"\01l_OBJC_$_CLASS_PROP_LIST_Foo_$_Category" = private global {{.*}} section "__DATA, __objc_const", align 8
// CHECK: @"\01l_OBJC_$_CATEGORY_Foo_$_Category" = private global %struct._category_t { {{.*}} @"\01l_OBJC_$_CLASS_PROP_LIST_Foo_$_Category" {{.*}}, i32 64 }, section "__DATA, __objc_const", align 8
// CHECK: @"_OBJC_$_CLASS_PROP_LIST_Proto" = internal global {{.*}} section "__DATA, __objc_const", align 8
// CHECK: @"_OBJC_PROTOCOL_$_Proto" = {{.*}} global %struct._protocol_t { {{.*}} i32 96, i32 {{.*}} @"_OBJC_$_CLASS_PROP_LIST_Proto" {{.*}} }
// CHECK: @"_OBJC_$_CLASS_PROP_LIST_Foo_$_Category" = internal global {{.*}} section "__DATA, __objc_const", align 8
// CHECK: @"_OBJC_$_CATEGORY_Foo_$_Category" = internal global %struct._category_t { {{.*}} @"_OBJC_$_CLASS_PROP_LIST_Foo_$_Category" {{.*}}, i32 64 }, section "__DATA, __objc_const", align 8

// CHECK: @"\01l_OBJC_$_CLASS_PROP_LIST_C" = private global {{.*}} section "__DATA, __objc_const", align 8
// CHECK: @"\01l_OBJC_METACLASS_RO_$_C" = private global %struct._class_ro_t { {{.*}} @"\01l_OBJC_$_CLASS_PROP_LIST_C" {{.*}} }, section "__DATA, __objc_const", align 8
// CHECK: @"_OBJC_$_CLASS_PROP_LIST_C" = internal global {{.*}} section "__DATA, __objc_const", align 8
// CHECK: @"_OBJC_METACLASS_RO_$_C" = internal global %struct._class_ro_t { {{.*}} @"_OBJC_$_CLASS_PROP_LIST_C" {{.*}} }, section "__DATA, __objc_const", align 8

// CHECK: !{i32 1, !"Objective-C Class Properties", i32 64}

// CHECK-NULL-NOT: @"\01l_OBJC_$_CLASS_PROP_LIST_Proto"
// CHECK-NULL-NOT: @"_OBJC_$_CLASS_PROP_LIST_Proto"
// CHECK-NULL: @"_OBJC_PROTOCOL_$_Proto" = {{.*}} global %struct._protocol_t { {{.*}} %struct._prop_list_t* null, i32 96, i32 {{.*}} %struct._prop_list_t* null }
// CHECK-NULL-NOT: @"\01l_OBJC_$_CLASS_PROP_LIST_Foo_$_Category" = private global {{.*}} section "__DATA, __objc_const", align 8
// CHECK-NULL: @"\01l_OBJC_$_CATEGORY_Foo_$_Category" = private global %struct._category_t { {{.*}} %struct._prop_list_t* null, %struct._prop_list_t* null, {{.*}} }, section "__DATA, __objc_const", align 8
// CHECK-NULL-NOT: @"_OBJC_$_CLASS_PROP_LIST_Foo_$_Category" = internal global {{.*}} section "__DATA, __objc_const", align 8
// CHECK-NULL: @"_OBJC_$_CATEGORY_Foo_$_Category" = internal global %struct._category_t { {{.*}} %struct._prop_list_t* null, %struct._prop_list_t* null, {{.*}} }, section "__DATA, __objc_const", align 8

// CHECK-NULL-NOT: @"\01l_OBJC_$_CLASS_PROP_LIST_C" = private global {{.*}} section "__DATA, __objc_const", align 8
// CHECK-NULL: @"\01l_OBJC_METACLASS_RO_$_C" = private global %struct._class_ro_t { {{.*}} %struct._prop_list_t* null }, section "__DATA, __objc_const", align 8
// CHECK-NULL-NOT: @"_OBJC_$_CLASS_PROP_LIST_C" = internal global {{.*}} section "__DATA, __objc_const", align 8
// CHECK-NULL: @"_OBJC_METACLASS_RO_$_C" = internal global %struct._class_ro_t { {{.*}} %struct._prop_list_t* null }, section "__DATA, __objc_const", align 8

// CHECK-NULL: !{i32 1, !"Objective-C Class Properties", i32 64}

// CHECK-FRAGILE: @"OBJC_$_CLASS_PROP_PROTO_LIST_Proto" = private global {{.*}} section "__OBJC,__property,regular,no_dead_strip", align 8
// CHECK-FRAGILE: @"\01l_OBJC_PROTOCOLEXT_Proto" = private global %struct._objc_protocol_extension { i32 48, {{.*}} @"OBJC_$_CLASS_PROP_PROTO_LIST_Proto" {{.*}} }, align 8
// CHECK-FRAGILE: @"\01l_OBJC_$_CLASS_PROP_LIST_Foo_Category" = private global {{.*}} section "__OBJC,__property,regular,no_dead_strip", align 8
// CHECK-FRAGILE: @OBJC_CATEGORY_Foo_Category = private global %struct._objc_category { {{.*}}, i32 64, {{.*}} @"\01l_OBJC_$_CLASS_PROP_LIST_Foo_Category" {{.*}} }, section "__OBJC,__category,regular,no_dead_strip", align 8
// CHECK-FRAGILE: @_OBJC_PROTOCOLEXT_Proto = internal global %struct._objc_protocol_extension { i32 48, {{.*}} @"OBJC_$_CLASS_PROP_PROTO_LIST_Proto" {{.*}} }, align 8
// CHECK-FRAGILE: @"_OBJC_$_CLASS_PROP_LIST_Foo_Category" = private global {{.*}} section "__OBJC,__property,regular,no_dead_strip", align 8
// CHECK-FRAGILE: @OBJC_CATEGORY_Foo_Category = private global %struct._objc_category { {{.*}}, i32 64, {{.*}} @"_OBJC_$_CLASS_PROP_LIST_Foo_Category" {{.*}} }, section "__OBJC,__category,regular,no_dead_strip", align 8

// CHECK-FRAGILE: @"\01l_OBJC_$_CLASS_PROP_LIST_C" = private global {{.*}} section "__OBJC,__property,regular,no_dead_strip", align 8
// CHECK-FRAGILE: @OBJC_CLASSEXT_C = private global %struct._objc_class_extension { {{.*}} @"\01l_OBJC_$_CLASS_PROP_LIST_C" {{.*}} }, section "__OBJC,__class_ext,regular,no_dead_strip", align 8
// CHECK-FRAGILE: @"_OBJC_$_CLASS_PROP_LIST_C" = private global {{.*}} section "__OBJC,__property,regular,no_dead_strip", align 8
// CHECK-FRAGILE: @OBJC_CLASSEXT_C = private global %struct._objc_class_extension { {{.*}} @"_OBJC_$_CLASS_PROP_LIST_C" {{.*}} }, section "__OBJC,__class_ext,regular,no_dead_strip", align 8

// CHECK-FRAGILE: !{i32 1, !"Objective-C Class Properties", i32 64}

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4 changes: 2 additions & 2 deletions clang/test/CodeGenObjC/metadata-symbols-32.m
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Expand Up @@ -3,7 +3,7 @@
// CHECK: .lazy_reference .objc_class_name_J0

// CHECK: @OBJC_METH_VAR_TYPE_{{.*}} = private unnamed_addr constant {{.*}}section "__TEXT,__cstring,cstring_literals", align 1
// CHECK: @"\01l_OBJC_PROTOCOLEXT_P" = private global {{.*}}}, align
// CHECK: @_OBJC_PROTOCOLEXT_P = internal global {{.*}}}, align
// CHECK: @OBJC_CLASS_NAME_{{[0-9]*}} = private unnamed_addr constant {{.*}}section "__TEXT,__cstring,cstring_literals", align 1
// CHECK: @OBJC_METH_VAR_NAME_{{.*}} = private unnamed_addr constant {{.*}}section "__TEXT,__cstring,cstring_literals", align 1
// CHECK: @OBJC_PROTOCOL_INSTANCE_METHODS_P = private global {{.*}}section "__OBJC,__cat_inst_meth,regular,no_dead_strip", align 4
Expand All @@ -15,7 +15,7 @@
// CHECK: @OBJC_INSTANCE_VARIABLES_A = private global {{.*}}section "__OBJC,__instance_vars,regular,no_dead_strip", align 4
// CHECK: @OBJC_INSTANCE_METHODS_A = private global {{.*}}section "__OBJC,__inst_meth,regular,no_dead_strip", align 4
// CHECK: @OBJC_PROP_NAME_ATTR_{{[0-9]*}} = private unnamed_addr constant {{.*}}section "__TEXT,__cstring,cstring_literals", align 1
// CHECK: @"\01l_OBJC_$_PROP_LIST_A" = private global {{.*}}section "__OBJC,__property,regular,no_dead_strip", align 4
// CHECK: @"_OBJC_$_PROP_LIST_A" = private global {{.*}}section "__OBJC,__property,regular,no_dead_strip", align 4
// CHECK: @OBJC_CLASSEXT_A = private global {{.*}}section "__OBJC,__class_ext,regular,no_dead_strip", align 4
// CHECK: @OBJC_CLASS_A = private global {{.*}}section "__OBJC,__class,regular,no_dead_strip", align 4
// CHECK: @OBJC_CATEGORY_INSTANCE_METHODS_A_Cat = private global {{.*}}section "__OBJC,__cat_inst_meth,regular,no_dead_strip", align 4
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