[llvm] [RISCV][TII] Add and use new hook to optimize/canonicalize instructions after MachineCopyPropagation (PR #137973)
Philip Reames via llvm-commits
llvm-commits at lists.llvm.org
Wed Apr 30 15:11:54 PDT 2025
================
@@ -3850,6 +3865,207 @@ MachineInstr *RISCVInstrInfo::commuteInstructionImpl(MachineInstr &MI,
return TargetInstrInfo::commuteInstructionImpl(MI, NewMI, OpIdx1, OpIdx2);
}
+bool RISCVInstrInfo::optimizeInstruction(MachineInstr &MI) const {
+ switch (MI.getOpcode()) {
+ default:
+ break;
+ case RISCV::OR:
+ case RISCV::XOR:
+ // Normalize:
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preames wrote:
Is this the result of clang-format? It looks like the spacing is off here.
https://github.com/llvm/llvm-project/pull/137973
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