[PATCH] D127871: [RISCV] Optimize 2x SELECT for floating-point types

[Craig Topper via Phabricator via llvm-commits]

craig.topper added inline comments.


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Comment at: llvm/lib/Target/RISCV/RISCVISelLowering.cpp:9855
+  auto Next = next_nodbg(MI.getIterator(), BB->instr_end());
+  if (MI.getOpcode() != RISCV::Select_GPR_Using_CC_GPR && Next != BB->end() &&
+      Next->getOpcode() == MI.getOpcode() &&
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I think we also need to make sure the condition for the second select doesn't use the output from the first select.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D127871/new/

https://reviews.llvm.org/D127871