llvm-project

d0fe52d9 - [AMDGPU] Fix sign confusion in performMulLoHiCombine (#105831)

[AMDGPU] Fix sign confusion in performMulLoHiCombine (#105831) SMUL_LOHI and UMUL_LOHI are different operations because the high part of the result is different, so it is not OK to optimize the signed version to MUL_U24/MULHI_U24 or the unsigned version to MUL_I24/MULHI_I24.