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-rw-r--r--lib/Target/ARM/ARMFastISel.cpp8
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/Target/ARM/ARMFastISel.cpp b/lib/Target/ARM/ARMFastISel.cpp
index 390cd92cd6..79c13913e9 100644
--- a/lib/Target/ARM/ARMFastISel.cpp
+++ b/lib/Target/ARM/ARMFastISel.cpp
@@ -946,6 +946,10 @@ bool ARMFastISel::ARMEmitLoad(EVT VT, unsigned &ResultReg, Address &Addr) {
}
bool ARMFastISel::SelectLoad(const Instruction *I) {
+ // Atomic loads need special handling.
+ if (cast<LoadInst>(I)->isAtomic())
+ return false;
+
// Verify we have a legal type before going any further.
MVT VT;
if (!isLoadTypeLegal(I->getType(), VT))
@@ -1008,6 +1012,10 @@ bool ARMFastISel::SelectStore(const Instruction *I) {
Value *Op0 = I->getOperand(0);
unsigned SrcReg = 0;
+ // Atomic stores need special handling.
+ if (cast<StoreInst>(I)->isAtomic())
+ return false;
+
// Verify we have a legal type before going any further.
MVT VT;
if (!isLoadTypeLegal(I->getOperand(0)->getType(), VT))