[PATCH] D144535: [RISCV] Enable machine copy propagation for copy-like instructions

[Wang Pengcheng via Phabricator via llvm-commits]

pcwang-thead marked an inline comment as done.
pcwang-thead added inline comments.


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Comment at: llvm/lib/Target/RISCV/RISCVTargetMachine.cpp:344
+
+  if (TM->getOptLevel() >= CodeGenOpt::Default && EnableRISCVCopyPropagation)
+    addPass(createMachineCopyPropagationPass(true));
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craig.topper wrote:
> Can this be before the two Expand passes? Especially the one that says "last possible moment"?
How about between the two Expand passes? we may produce MVs when expanding `PseudoCCMOVGPR`.


Repository:
  rG LLVM Github Monorepo

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https://reviews.llvm.org/D144535