[clang] a7db230 - [X86] Add CMPXCHG16B feature to amdfam10 in the frontend.

[Craig Topper via cfe-commits]

Author: Craig Topper
Date: 2020-06-25T22:55:36-07:00
New Revision: a7db230d752be4a104c496eb68a82a5acb4bb35c

URL: https://github.com/llvm/llvm-project/commit/a7db230d752be4a104c496eb68a82a5acb4bb35c
DIFF: https://github.com/llvm/llvm-project/commit/a7db230d752be4a104c496eb68a82a5acb4bb35c.diff

LOG: [X86] Add CMPXCHG16B feature to amdfam10 in the frontend.

We already have this feature on it in the backend.

Added: 
    

Modified: 
    clang/lib/Basic/Targets/X86.cpp
    clang/test/Preprocessor/predefined-arch-macros.c

Removed: 
    


################################################################################
diff  --git a/clang/lib/Basic/Targets/X86.cpp b/clang/lib/Basic/Targets/X86.cpp
index cc37c8a5cba0..184090fe104f 100644
--- a/clang/lib/Basic/Targets/X86.cpp
+++ b/clang/lib/Basic/Targets/X86.cpp
@@ -336,6 +336,7 @@ bool X86TargetInfo::initFeatureMap(
     setFeatureEnabledImpl(Features, "popcnt", true);
     setFeatureEnabledImpl(Features, "sahf", true);
     setFeatureEnabledImpl(Features, "prfchw", true);
+    setFeatureEnabledImpl(Features, "cx16", true);
     LLVM_FALLTHROUGH;
   case CK_K8SSE3:
     setFeatureEnabledImpl(Features, "sse3", true);

diff  --git a/clang/test/Preprocessor/predefined-arch-macros.c b/clang/test/Preprocessor/predefined-arch-macros.c
index 4e1535c91c08..91f6a99a29c2 100644
--- a/clang/test/Preprocessor/predefined-arch-macros.c
+++ b/clang/test/Preprocessor/predefined-arch-macros.c
@@ -2397,6 +2397,7 @@
 // RUN:   | FileCheck -match-full-lines %s -check-prefix=CHECK_AMDFAM10_M64
 // CHECK_AMDFAM10_M64: #define __3dNOW_A__ 1
 // CHECK_AMDFAM10_M64: #define __3dNOW__ 1
+// CHECK_AMDFAM10_M64: #define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_16 1
 // CHECK_AMDFAM10_M64: #define __LZCNT__ 1
 // CHECK_AMDFAM10_M64: #define __MMX__ 1
 // CHECK_AMDFAM10_M64: #define __POPCNT__ 1