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-rw-r--r--lib/Transforms/Utils/SimplifyCFG.cpp4
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/Transforms/Utils/SimplifyCFG.cpp b/lib/Transforms/Utils/SimplifyCFG.cpp
index e155daf6fc..ff2f2a0362 100644
--- a/lib/Transforms/Utils/SimplifyCFG.cpp
+++ b/lib/Transforms/Utils/SimplifyCFG.cpp
@@ -3313,6 +3313,10 @@ static bool ForwardSwitchConditionToPHI(SwitchInst *SI) {
static bool ValidLookupTableConstant(Constant *C) {
if (ConstantExpr *CE = dyn_cast<ConstantExpr>(C))
return CE->isGEPWithNoNotionalOverIndexing();
+ if (C->isThreadDependent())
+ return false;
+ if (C->isDLLImportDependent())
+ return false;
return isa<ConstantFP>(C) ||
isa<ConstantInt>(C) ||