[all-commits] [llvm/llvm-project] a67867: [X86] add mayRaiseFPException flag and FPCW regist...

[topperc via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: a678677da498a45f59c16ee74fea438e34a801ce
      https://github.com/llvm/llvm-project/commit/a678677da498a45f59c16ee74fea438e34a801ce
  Author: Craig Topper <craig.topper at intel.com>
  Date:   2019-10-31 (Thu, 31 Oct 2019)

  Changed paths:
    M llvm/lib/Target/X86/X86InstrFPStack.td
    M llvm/lib/Target/X86/X86InstrFormats.td
    A llvm/test/CodeGen/X86/x87-reg-usage.mir

  Log Message:
  -----------
  [X86] add mayRaiseFPException flag and FPCW registers for X87 instructions

This patch adds flag "mayRaiseFPException" , FPCW and FPSW for X87 instructions which could raise
float exception.

Patch by LiuChen. With a couple small fixes from me.

Differential Revision: https://reviews.llvm.org/D68854