r304859 - [WebAssembly] Set MaxAtomicInlineWidth to 64.

[Dan Gohman via cfe-commits]

Author: djg
Date: Tue Jun  6 21:22:40 2017
New Revision: 304859

URL: http://llvm.org/viewvc/llvm-project?rev=304859&view=rev
Log:
[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.

Modified:
    cfe/trunk/lib/Basic/Targets.cpp
    cfe/trunk/test/Preprocessor/init.c

Modified: cfe/trunk/lib/Basic/Targets.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Basic/Targets.cpp?rev=304859&r1=304858&r2=304859&view=diff
==============================================================================
--- cfe/trunk/lib/Basic/Targets.cpp (original)
+++ cfe/trunk/lib/Basic/Targets.cpp Tue Jun  6 21:22:40 2017
@@ -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");
   }
 

Modified: cfe/trunk/test/Preprocessor/init.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Preprocessor/init.c?rev=304859&r1=304858&r2=304859&view=diff
==============================================================================
--- cfe/trunk/test/Preprocessor/init.c (original)
+++ cfe/trunk/test/Preprocessor/init.c Tue Jun  6 21:22:40 2017
@@ -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