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-rw-r--r--llvm/lib/Target/Hexagon/HexagonTargetMachine.cpp5
1 files changed, 5 insertions, 0 deletions
diff --git a/llvm/lib/Target/Hexagon/HexagonTargetMachine.cpp b/llvm/lib/Target/Hexagon/HexagonTargetMachine.cpp
index 363b703fef2..df65cfd97a4 100644
--- a/llvm/lib/Target/Hexagon/HexagonTargetMachine.cpp
+++ b/llvm/lib/Target/Hexagon/HexagonTargetMachine.cpp
@@ -299,6 +299,11 @@ void HexagonPassConfig::addIRPasses() {
TargetPassConfig::addIRPasses();
bool NoOpt = (getOptLevel() == CodeGenOpt::None);
+ if (!NoOpt) {
+ addPass(createConstantPropagationPass());
+ addPass(createDeadCodeEliminationPass());
+ }
+
addPass(createAtomicExpandPass());
if (!NoOpt) {
if (EnableLoopPrefetch)
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