[PATCH] D31797: [ARM] Prefer BIC over BFC in ARM mode.

Eli Friedman via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Thu Apr 6 16:49:05 PDT 2017


efriedma created this revision.
Herald added a subscriber: aemerson.

BIC is generally faster, and it can put the output in a different register from the input.

We already do this in Thumb2 mode; not sure why the equivalent fix never got applied to ARM mode.


Repository:
  rL LLVM

https://reviews.llvm.org/D31797

Files:
  lib/Target/ARM/ARMInstrInfo.td
  test/CodeGen/ARM/2012-10-04-AAPCS-byval-align8.ll
  test/CodeGen/ARM/bfi.ll
  test/CodeGen/ARM/bic.ll
  test/CodeGen/ARM/fp16-promote.ll
  test/CodeGen/ARM/fpcmp-opt.ll
  test/CodeGen/ARM/softfp-fabs-fneg.ll
  test/CodeGen/ARM/va_arg.ll

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