[PATCH] D121210: [X86] convertIntLogicToFPLogic - enable fp-logic on pre-AVX targets for supported fp predicates (PR34563)
Simon Pilgrim via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Tue Mar 8 05:50:09 PST 2022
RKSimon created this revision.
RKSimon added reviewers: spatel, craig.topper, pengfei.
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Herald added a project: LLVM.
If the SETCC fp-condcode is supported on SSE as a single CMPPS/PD op then we can use convertIntLogicToFPLogic to reduce EFLAGS and XMM->GPR traffic like we do for AVX targets.
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D121210
Files:
llvm/lib/Target/X86/X86ISelLowering.cpp
llvm/test/CodeGen/X86/fcmp-logic.ll
llvm/test/CodeGen/X86/pr40539.ll
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