[PATCH] D139893: [RISCV] Set ShouldSignExtI32Param in TargetLibraryInfo for riscv64.

[Craig Topper via Phabricator via llvm-commits]

craig.topper created this revision.
craig.topper added reviewers: asb, luismarques, reames, jyknight, efriedma.
Herald added subscribers: sunshaoce, VincentWu, StephenFan, vkmr, frasercrmck, evandro, apazos, sameer.abuasal, s.egerton, Jim, benna, psnobl, jocewei, PkmX, the_o, brucehoult, MartinMosbeck, rogfer01, atanasyan, edward-jones, zzheng, jrtc27, shiva0217, kito-cheng, niosHD, sabuasal, simoncook, johnrusso, rbar, hiraditya, arichardson, sdardis.
Herald added a project: All.
craig.topper requested review of this revision.
Herald added subscribers: pcwang-thead, eopXD, MaskRay.
Herald added a project: LLVM.

riscv64 sign extends signed and unsigned i32 arguments like Mips.

Based on discussion here
https://discourse.llvm.org/t/can-we-preserve-signext-return-attribute-when-converting-memcmp-to-bcmp/67126

I'll work on returns next.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D139893

Files:
  llvm/lib/Analysis/TargetLibraryInfo.cpp
  llvm/test/Transforms/InstCombine/RISCV/libcall-arg-exts.ll

-------------- next part --------------
A non-text attachment was scrubbed...
Name: D139893.482306.patch
Type: text/x-patch
Size: 3467 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20221213/9b4a27a4/attachment.bin>