================
@@ -1678,6 +1680,8 @@ void
Instruction::dropUnknownNonDebugMetadata(ArrayRef<unsigned> KnownIDs) {
// A DIAssignID attachment is debug metadata, don't drop it.
KnownSet.insert(LLVMContext::MD_DIAssignID);
+ if (!ProfcheckDisableMetadataFixes)
+ KnownSet.insert(LLVMContext::MD_prof);
----------------
mtrofin wrote:
I also have mixed feelings about this, I got worried we may accidentally keep
the wrong profile info (meaning, uses should reason about what the right info
is) - I'm curious what your reasoning was?
https://github.com/llvm/llvm-project/pull/152420
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