================
@@ -189,6 +201,9 @@ class DXILPrepareModule : public ModulePass {
for (auto &BB : F) {
IRBuilder<> Builder(&BB);
for (auto &I : make_early_inc_range(BB)) {
+
+ I.dropUnknownNonDebugMetadata(DXILCompatibleMDs);
+
if (I.getOpcode() == Instruction::FNeg) {
----------------
bogner wrote:
I agree. I think DXILPrepare should do things like translate attributes and
metadata, insert no-op bitcasts to appease the bitcode writer, and that sort of
thing. Replacing ops with their equivalents should squarely be a part of
legalization, not here.
I've filed https://github.com/llvm/llvm-project/issues/137685
https://github.com/llvm/llvm-project/pull/136386
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