Misc fixes for atomics. Biggest fix is doing alignment correctly for _Atomic types.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142002 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 9 insertions, 0 deletions

diff --git a/include/clang/Basic/TargetInfo.h b/include/clang/Basic/TargetInfo.h
index e5a732a4cc..0a7d2f1ea0 100644
--- a/include/clang/Basic/TargetInfo.h
+++ b/include/clang/Basic/TargetInfo.h
@@ -75,6 +75,7 @@ protected:
   unsigned char LargeArrayMinWidth, LargeArrayAlign;
   unsigned char LongWidth, LongAlign;
   unsigned char LongLongWidth, LongLongAlign;
+  unsigned char MaxAtomicPromoteWidth, MaxAtomicInlineWidth;
   const char *DescriptionString;
   const char *UserLabelPrefix;
   const char *MCountName;
@@ -246,6 +247,14 @@ public:
   unsigned getLargeArrayMinWidth() const { return LargeArrayMinWidth; }
   unsigned getLargeArrayAlign() const { return LargeArrayAlign; }
 
+  /// getMaxAtomicPromoteWidth - Return the maximum width lock-free atomic
+  /// operation which will ever be supported for the given target
+  unsigned getMaxAtomicPromoteWidth() const { return MaxAtomicPromoteWidth; }
+  /// getMaxAtomicInlineWidth - Return the maximum width lock-free atomic
+  /// operation which can be inlined given the supported features of the
+  /// given target.
+  unsigned getMaxAtomicInlineWidth() const { return MaxAtomicInlineWidth; }
+
   /// getIntMaxTWidth - Return the size of intmax_t and uintmax_t for this
   /// target, in bits.
   unsigned getIntMaxTWidth() const {