llvm-project

80064b6e - AMDGPU: Try constant fold after folding immediate (#141862)

AMDGPU: Try constant fold after folding immediate (#141862) This helps avoid some regressions in a future patch. The or 0 pattern appears in the division tests because the reduce 64-bit bit operation to a 32-bit one with half identity value is only implemented for constants. We could fix that by using computeKnownBits. Additionally the pattern disappears if I optimize the IR division expansion, so that IR should probably be emitted more optimally in the first place.