[PATCH] D135693: [RegisterScavenger][RISCV] Don't search for FrameSetup instrs if we were searching from Non-FrameSetup instrs
luxufan via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Tue Oct 25 23:55:16 PDT 2022
StephenFan added inline comments.
================
Comment at: llvm/lib/CodeGen/RegisterScavenging.cpp:376
const MachineInstr &MI = *I;
+ // Don't search to FrameSetup instructions if we were searching from
+ // Non-FrameSetup instructions. Otherwise, the spill position may point
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craig.topper wrote:
> Can this be done in the `FoundTo` path? Does this matter before we find `To`?
You are right. It doesn't matter before we find `To`.
Repository:
rG LLVM Github Monorepo
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https://reviews.llvm.org/D135693/new/
https://reviews.llvm.org/D135693
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