[PATCH] D105957: [PowerPC] Implement intrinsics for mtfsf[i]

Nemanja Ivanovic via Phabricator via cfe-commits cfe-commits at lists.llvm.org
Tue Jul 13 19:09:58 PDT 2021


nemanjai created this revision.
nemanjai added reviewers: PowerPC, ZhangKang.
Herald added subscribers: shchenz, kbarton, hiraditya.
nemanjai requested review of this revision.
Herald added projects: clang, LLVM.
Herald added a subscriber: cfe-commits.

This provides intrinsics for emitting instructions that set the FPSCR (`mtfsf/mtfsfi`).

The patch also conservatively marks the rounding mode as an implicit def for both since they both may set the rounding mode depending on the operands.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D105957

Files:
  clang/lib/CodeGen/CGBuiltin.cpp
  clang/test/CodeGen/builtins-ppc-xlcompat-math.c
  llvm/include/llvm/IR/IntrinsicsPowerPC.td
  llvm/lib/Target/PowerPC/P9InstrResources.td
  llvm/lib/Target/PowerPC/PPCInstrInfo.td
  llvm/test/CodeGen/PowerPC/builtins-ppc-xlcompat-math.ll
  llvm/test/CodeGen/PowerPC/fpscr-intrinsics.ll

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