[PATCH] D101525: RegAlloc: do not consider liveins to EH-pad successors as liveout.
Eli Friedman via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Tue May 4 14:46:59 PDT 2021
efriedma added inline comments.
================
Comment at: llvm/lib/CodeGen/RegAllocFast.cpp:1455
+ LI.PhysReg == TLI->getExceptionSelectorRegister(PersonalityFn)))
+ continue;
setPhysRegState(LI.PhysReg, regPreAssigned);
----------------
Calling getExceptionPointerRegister() directly from fast regalloc seems hacky. We don't want to copy-paste this code everywhere that cares about physical register live-outs.
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D101525/new/
https://reviews.llvm.org/D101525
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