[SPARC] Allows inlining of atomics for Sparc32 with appropriate store barrier.

The final change is required to extend the back-end's AtomicExpandPass that was implemented for Sparc (64 bit) and later extended for Sparc (32 bit).

llvm-svn: 274012

1 files changed, 1 insertions, 0 deletions

diff --git a/clang/lib/Basic/Targets.cpp b/clang/lib/Basic/Targets.cpp
index 56a19a03248..91cc9867aff 100644
--- a/clang/lib/Basic/Targets.cpp
+++ b/clang/lib/Basic/Targets.cpp
@@ -6601,6 +6601,7 @@ public:
       PtrDiffType = SignedLong;
       break;
     }
+    MaxAtomicPromoteWidth = MaxAtomicInlineWidth = 64;
   }
 
   void getTargetDefines(const LangOptions &Opts,