[all-commits] [llvm/llvm-project] 58e19d: [PowerPC] Don't convert Loop to CTR Loop for fp128...

[Zhang Kang via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 58e19d465a13b4ada2f7f3ea0252601dc700b777
      https://github.com/llvm/llvm-project/commit/58e19d465a13b4ada2f7f3ea0252601dc700b777
  Author: Kang Zhang <shkzhang at cn.ibm.com>
  Date:   2020-06-18 (Thu, 18 Jun 2020)

  Changed paths:
    M llvm/lib/Target/PowerPC/PPCTargetTransformInfo.cpp
    M llvm/test/CodeGen/PowerPC/ctrloop-fp128.ll

  Log Message:
  -----------
  [PowerPC] Don't convert Loop to CTR Loop for fp128 BinaryOperator

Summary:
For PPC BinaryOperator of fp128 will become libcall, we shouldn't
convert loop to CTR loop if the loop contain libCall.

But currently, in the PPCTTIImpl::mightUseCTR() function, we only deal
with BinaryOperator for ppc_fp128, don't deal with the fp128.

Reviewed By: shchenz

Differential Revision: https://reviews.llvm.org/D81353