[Sema] Teach Clang that aligned allocation is not supported with maco…

…sx10.13

Summary:
r306722 added diagnostics when aligned allocation is used with deployment
targets that do not support it, but the first macosx supporting aligned
allocation was incorrectly set to 10.13. In reality, the dylib shipped
with macosx10.13 does not support aligned allocation, but the dylib
shipped with macosx10.14 does.

Reviewers: ahatanak

Subscribers: christof, jkorous, dexonsmith, cfe-commits

Differential Revision: https://reviews.llvm.org/D56445

llvm-svn: 350649

clang/include/clang/Basic/AlignedAllocation.h

@@ -27,8 +27,8 @@ inline llvm::VersionTuple alignedAllocMinVersion(llvm::Triple::OSType OS) {
   default:
     break;
   case llvm::Triple::Darwin:
-  case llvm::Triple::MacOSX: // Earliest supporting version is 10.13.
-    return llvm::VersionTuple(10U, 13U);
+  case llvm::Triple::MacOSX: // Earliest supporting version is 10.14.
+    return llvm::VersionTuple(10U, 14U);
   case llvm::Triple::IOS:
   case llvm::Triple::TvOS: // Earliest supporting version is 11.0.0.
     return llvm::VersionTuple(11U);

clang/test/Driver/unavailable_aligned_allocation.cpp

@@ -1,4 +1,4 @@
-// RUN: %clang -target x86_64-apple-macosx10.12 -c -### %s 2>&1 \
+// RUN: %clang -target x86_64-apple-macosx10.13 -c -### %s 2>&1 \
 // RUN:   | FileCheck %s -check-prefix=UNAVAILABLE
 //
 // RUN: %clang -target arm64-apple-ios10 -c -### %s 2>&1 \
@@ -24,7 +24,7 @@
 //
 // UNAVAILABLE: "-faligned-alloc-unavailable"
 
-// RUN: %clang -target x86_64-apple-macosx10.13 -c -### %s 2>&1 \
+// RUN: %clang -target x86_64-apple-macosx10.14 -c -### %s 2>&1 \
 // RUN:   | FileCheck %s -check-prefix=AVAILABLE
 //
 // RUN: %clang -target arm64-apple-ios11 -c -### %s 2>&1 \
@@ -54,10 +54,10 @@
 // Check that passing -faligned-allocation or -fno-aligned-allocation stops the
 // driver from passing -faligned-alloc-unavailable to cc1.
 //
-// RUN: %clang -target x86_64-apple-macosx10.12 -faligned-allocation -c -### %s 2>&1 \
+// RUN: %clang -target x86_64-apple-macosx10.13 -faligned-allocation -c -### %s 2>&1 \
 // RUN:   | FileCheck %s -check-prefix=AVAILABLE
 //
-// RUN: %clang -target x86_64-apple-macosx10.12 -fno-aligned-allocation -c -### %s 2>&1 \
+// RUN: %clang -target x86_64-apple-macosx10.13 -fno-aligned-allocation -c -### %s 2>&1 \
 // RUN:   | FileCheck %s -check-prefix=AVAILABLE
 
 // AVAILABLE-NOT: "-faligned-alloc-unavailable"

clang/test/SemaCXX/unavailable_aligned_allocation.cpp

@@ -1,6 +1,6 @@
-// RUN: %clang_cc1 -triple x86_64-apple-macosx10.12.0 -fexceptions -faligned-alloc-unavailable -std=c++1z -verify %s
-// RUN: %clang_cc1 -triple x86_64-apple-macosx10.12.0 -fexceptions -std=c++1z -verify -DNO_ERRORS %s
-// RUN: %clang_cc1 -triple x86_64-apple-macosx10.12.0 -fexceptions -faligned-allocation -faligned-alloc-unavailable -std=c++14 -verify %s
+// RUN: %clang_cc1 -triple x86_64-apple-macosx10.13.0 -fexceptions -faligned-alloc-unavailable -std=c++1z -verify %s
+// RUN: %clang_cc1 -triple x86_64-apple-macosx10.13.0 -fexceptions -std=c++1z -verify -DNO_ERRORS %s
+// RUN: %clang_cc1 -triple x86_64-apple-macosx10.13.0 -fexceptions -faligned-allocation -faligned-alloc-unavailable -std=c++14 -verify %s
 // RUN: %clang_cc1 -triple arm64-apple-ios10.0.0 -fexceptions -faligned-alloc-unavailable -std=c++1z -verify -DIOS %s
 // RUN: %clang_cc1 -triple arm64-apple-ios10.0.0 -fexceptions -std=c++1z -verify -DNO_ERRORS %s
 // RUN: %clang_cc1 -triple arm64-apple-tvos10.0.0 -fexceptions -faligned-alloc-unavailable -std=c++1z -verify -DTVOS %s
@@ -117,8 +117,8 @@ void testOveralignedCheckOS() {
 // expected-error@-13 {{aligned allocation function of type 'void *(unsigned long, enum std::align_val_t)' is only available on watchOS 4 or newer}}}
 // expected-error@-14 {{aligned deallocation function of type 'void (void *, enum std::align_val_t) noexcept' is only available on watchOS 4 or newer}}}
 #else
-// expected-error@-16 {{aligned allocation function of type 'void *(unsigned long, enum std::align_val_t)' is only available on macOS 10.13 or newer}}}
-// expected-error@-17 {{aligned deallocation function of type 'void (void *, enum std::align_val_t) noexcept' is only available on macOS 10.13 or newer}}}
+// expected-error@-16 {{aligned allocation function of type 'void *(unsigned long, enum std::align_val_t)' is only available on macOS 10.14 or newer}}}
+// expected-error@-17 {{aligned deallocation function of type 'void (void *, enum std::align_val_t) noexcept' is only available on macOS 10.14 or newer}}}
 #endif
 
 // expected-note@-20 2 {{if you supply your own aligned allocation functions}}
@@ -146,7 +146,7 @@ OveralignedS2::~OveralignedS2() {}
 // expected-error@-12 {{aligned deallocation function of type 'void (void *, enum std::align_val_t) noexcept' is only available on watchOS 4 or newer}}}
 // expected-note@-13 {{if you supply your own aligned allocation functions}}
 #else
-// expected-error@-15 {{aligned deallocation function of type 'void (void *, enum std::align_val_t) noexcept' is only available on macOS 10.13 or newer}}}
+// expected-error@-15 {{aligned deallocation function of type 'void (void *, enum std::align_val_t) noexcept' is only available on macOS 10.14 or newer}}}
 // expected-note@-16 {{if you supply your own aligned allocation functions}}
 #endif
 #endif

libcxx/test/libcxx/language.support/support.dynamic/libcpp_deallocate.sh.cpp

@@ -14,9 +14,15 @@
 // definitions, which does not yet provide aligned allocation
 // XFAIL: LIBCXX-WINDOWS-FIXME
 
-// Clang 10 (and older) will trigger an availability error when the deployment
+// AppleClang 10 (and older) will trigger an availability error when the deployment
 // target does not support aligned allocation, even if we pass `-faligned-allocation`.
+// XFAIL: apple-clang-10 && availability=macosx10.13
 // XFAIL: apple-clang-10 && availability=macosx10.12
+// XFAIL: apple-clang-10 && availability=macosx10.11
+// XFAIL: apple-clang-10 && availability=macosx10.10
+// XFAIL: apple-clang-10 && availability=macosx10.9
+// XFAIL: apple-clang-10 && availability=macosx10.8
+// XFAIL: apple-clang-10 && availability=macosx10.7
 
 // The dylibs shipped before macosx10.14 do not contain the aligned allocation
 // functions, so trying to force using those with -faligned-allocation results

libcxx/test/libcxx/memory/aligned_allocation_macro.pass.cpp

@@ -9,14 +9,17 @@
 
 // UNSUPPORTED: c++98, c++03, c++11, c++14
 
-// Aligned allocation functions are not provided prior to macosx10.13, but
-// AppleClang <= 10 does not know about this restriction and always enables them.
-// XFAIL: !(apple-clang-9 || apple-clang-10) && availability=macosx10.12
-// XFAIL: !(apple-clang-9 || apple-clang-10) && availability=macosx10.11
-// XFAIL: !(apple-clang-9 || apple-clang-10) && availability=macosx10.10
-// XFAIL: !(apple-clang-9 || apple-clang-10) && availability=macosx10.9
-// XFAIL: !(apple-clang-9 || apple-clang-10) && availability=macosx10.8
-// XFAIL: !(apple-clang-9 || apple-clang-10) && availability=macosx10.7
+// AppleClang <= 10 enables aligned allocation regardless of the deployment
+// target, so this test would fail.
+// UNSUPPORTED: apple-clang-9, apple-clang-10
+
+// XFAIL: availability=macosx10.13
+// XFAIL: availability=macosx10.12
+// XFAIL: availability=macosx10.11
+// XFAIL: availability=macosx10.10
+// XFAIL: availability=macosx10.9
+// XFAIL: availability=macosx10.8
+// XFAIL: availability=macosx10.7
 
 #include <new>