[PATCH] D137949: [RISCV] Branchless lowering for select (x < 0), TrueConstant, FalseConstant)
Liao Chunyu via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Mon Nov 14 17:27:36 PST 2022
liaolucy added inline comments.
================
Comment at: llvm/lib/Target/RISCV/RISCVISelLowering.cpp:9639
+ // register.
+ if (isInt<12>((uint64_t)TrueSImm) && isInt<12>((uint64_t)FalseSImm) &&
+ isInt<12>((uint64_t)FalseSImm - (uint64_t)TrueSImm)) {
----------------
reames wrote:
> You shouldn't need these casts.
Is it open to all constants? There will be some code size increase
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rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D137949/new/
https://reviews.llvm.org/D137949
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