[PATCH] D154193: [X86]Remove TEST in AND32ri+TEST16rr in peephole-opt
Craig Topper via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Mon Jul 3 09:51:35 PDT 2023
craig.topper added inline comments.
================
Comment at: llvm/lib/Target/X86/X86InstrInfo.cpp:1007
+ VregDefInstr->getOpcode() == X86::AND64ri32) &&
+ isInt<16>(VregDefInstr->getOperand(2).getImm())))
+ return false;
----------------
Doesn't it need to be isUint<16>?
Bit 15 would also need to be 0 if the sign flag is being used.
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D154193/new/
https://reviews.llvm.org/D154193
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