Pierre-vh wrote: > Then isUnneededShiftMask should probably recognize more forms of the pattern
Yes, but with a cast operation it gets tricky. If I add `(zext node:$src0)` to the PatFrag, it doesn't work because the PatFrag is always used like this: `(cshl_32 (i32 $src0))`. As `$src0` is inferred to i32, it proceeds to infer the zext as a zext to i64 and then we get a type mismatch error. I'm not sure how to proceed with this one, I need someone to help me figure out the right syntax https://github.com/llvm/llvm-project/pull/131310 _______________________________________________ llvm-branch-commits mailing list llvm-branch-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-branch-commits
