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[WebAssembly] Set MaxAtomicInlineWidth to 64. 

The WebAssembly threads proposal has changed such that C++
implementations can now declare that atomics up to 64 bits are
"lock free" in C++'s terms.

llvm-svn: 304859
This commit is contained in:
Dan Gohman 2017-06-07 02:22:40 +00:00
parent d9bc851fb3
commit 7dee171f69
2 changed files with 3 additions and 3 deletions
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2
clang/lib/Basic/Targets.cpp
View File

@ -8476,7 +8476,7 @@ public:
explicit WebAssembly32TargetInfo(const llvm::Triple &T,
const TargetOptions &Opts)
: WebAssemblyTargetInfo(T, Opts) {
MaxAtomicPromoteWidth = MaxAtomicInlineWidth = 32;
MaxAtomicPromoteWidth = MaxAtomicInlineWidth = 64;
resetDataLayout("e-m:e-p:32:32-i64:64-n32:64-S128");
}

4
clang/test/Preprocessor/init.c
View File

@ -8851,7 +8851,7 @@
// WEBASSEMBLY32-NEXT:#define __CLANG_ATOMIC_CHAR32_T_LOCK_FREE 2
// WEBASSEMBLY32-NEXT:#define __CLANG_ATOMIC_CHAR_LOCK_FREE 2
// WEBASSEMBLY32-NEXT:#define __CLANG_ATOMIC_INT_LOCK_FREE 2
// WEBASSEMBLY32-NEXT:#define __CLANG_ATOMIC_LLONG_LOCK_FREE 1
// WEBASSEMBLY32-NEXT:#define __CLANG_ATOMIC_LLONG_LOCK_FREE 2
// WEBASSEMBLY32-NEXT:#define __CLANG_ATOMIC_LONG_LOCK_FREE 2
// WEBASSEMBLY32-NEXT:#define __CLANG_ATOMIC_POINTER_LOCK_FREE 2
// WEBASSEMBLY32-NEXT:#define __CLANG_ATOMIC_SHORT_LOCK_FREE 2
@ -8895,7 +8895,7 @@
// WEBASSEMBLY32-NEXT:#define __GCC_ATOMIC_CHAR32_T_LOCK_FREE 2
// WEBASSEMBLY32-NEXT:#define __GCC_ATOMIC_CHAR_LOCK_FREE 2
// WEBASSEMBLY32-NEXT:#define __GCC_ATOMIC_INT_LOCK_FREE 2
// WEBASSEMBLY32-NEXT:#define __GCC_ATOMIC_LLONG_LOCK_FREE 1
// WEBASSEMBLY32-NEXT:#define __GCC_ATOMIC_LLONG_LOCK_FREE 2
// WEBASSEMBLY32-NEXT:#define __GCC_ATOMIC_LONG_LOCK_FREE 2
// WEBASSEMBLY32-NEXT:#define __GCC_ATOMIC_POINTER_LOCK_FREE 2
// WEBASSEMBLY32-NEXT:#define __GCC_ATOMIC_SHORT_LOCK_FREE 2