[CodeGen] Refactor TLI/AtomicExpand interface to make LLSC explicit.

[oota-llvm.git] / lib / Target / Hexagon / HexagonISelLowering.cpp

diff --git a/lib/Target/Hexagon/HexagonISelLowering.cpp b/lib/Target/Hexagon/HexagonISelLowering.cpp
index 6f25e1e2df92057d093cd577162ad81f213db57d..90b46efdf730ede47afa0433c63238d4bbbc6841 100644 (file)
--- a/lib/Target/Hexagon/HexagonISelLowering.cpp
+++ b/lib/Target/Hexagon/HexagonISelLowering.cpp
@@ -2499,9 +2499,12 @@ Value *HexagonTargetLowering::emitStoreConditional(IRBuilder<> &Builder,
   return Ext;
 }
 
-bool HexagonTargetLowering::shouldExpandAtomicLoadInIR(LoadInst *LI) const {
+TargetLowering::AtomicExpansionKind
+HexagonTargetLowering::shouldExpandAtomicLoadInIR(LoadInst *LI) const {
   // Do not expand loads and stores that don't exceed 64 bits.
-  return LI->getType()->getPrimitiveSizeInBits() > 64;
+  return LI->getType()->getPrimitiveSizeInBits() > 64
+             ? AtomicExpansionKind::LLSC
+             : AtomicExpansionKind::None;
 }
 
 bool HexagonTargetLowering::shouldExpandAtomicStoreInIR(StoreInst *SI) const {