[PATCH] D95858: [Statepoint] Handle 'undef' operand tied to def
Serguei Katkov via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Tue Feb 2 02:18:52 PST 2021
skatkov created this revision.
skatkov added reviewers: reames, dantrushin.
Herald added subscribers: pengfei, jfb, hiraditya.
skatkov requested review of this revision.
Herald added a project: LLVM.
FixupStatepoints pass does not take into account the undef use
it skips may have a tied def. So when defs are handled pass
considers that tied-use should be spilled and triggers an assert.
FixupStatepoints should skip undef def as well.
https://reviews.llvm.org/D95858
Files:
llvm/lib/CodeGen/FixupStatepointCallerSaved.cpp
llvm/test/CodeGen/X86/statepoint-fixup-undef-def.mir
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