[PATCH] D110862: X86InstrInfo: Look across basic blocks in optimizeCompareInstr
Pengfei Wang via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Fri Oct 1 02:54:38 PDT 2021
pengfei added inline comments.
================
Comment at: llvm/lib/Target/X86/X86InstrInfo.cpp:4476-4479
+ // Only move within the same block so we don't accidentally move to a
+ // block with higher execution frequency.
+ if (&CmpMBB != SubBB)
+ return false;
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Do we have a test for it?
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D110862/new/
https://reviews.llvm.org/D110862
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