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-rw-r--r--llvm/lib/Transforms/Scalar/GVN.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Scalar/GVN.cpp b/llvm/lib/Transforms/Scalar/GVN.cpp
index d898b1796b6..cbb9c1bc00b 100644
--- a/llvm/lib/Transforms/Scalar/GVN.cpp
+++ b/llvm/lib/Transforms/Scalar/GVN.cpp
@@ -1780,6 +1780,7 @@ static void patchReplacementInstruction(Instruction *I, Value *Repl) {
// regions, and so we need a conservative combination of the noalias
// scopes.
static const unsigned KnownIDs[] = {
+ LLVMContext::MD_dbg,
LLVMContext::MD_tbaa,
LLVMContext::MD_alias_scope,
LLVMContext::MD_noalias,
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