llvm-project

d085b42c - [InstSimplify] Do not simplify freeze in `simplifyWithOpReplaced` (#91215)

[InstSimplify] Do not simplify freeze in `simplifyWithOpReplaced` (#91215) See the LangRef: > All uses of a value returned by the same ‘freeze’ instruction are guaranteed to always observe the same value, while different ‘freeze’ instructions may yield different values. It is incorrect to replace freezes with the simplified value. Proof: https://alive2.llvm.org/ce/z/3Dn9Cd https://alive2.llvm.org/ce/z/Qyh5h6 Fixes https://github.com/llvm/llvm-project/issues/91178