llvm/test/CodeGen/SystemZ/fp-cmp-07.mir

# RUN: llc -mtriple=s390x-linux-gnu -mcpu=z10 -no-integrated-as -start-after=block-placement %s -o - | FileCheck %s
# Test that LTEBR is used without an unnecessary LER

--- |
  define float @f15(float %val, float %dummy, float* %dest) {
  entry:
    call void asm sideeffect "blah $0", "{f2}"(float %val)
    %cmp = fcmp olt float %val, 0.000000e+00
    br i1 %cmp, label %exit, label %store

  store:                                            ; preds = %entry
    store float %val, float* %dest
    br label %exit

  exit:                                             ; preds = %store, %entry
    ret float %val
  }

...

# CHECK: ltebr %f2, %f0

---
name:            f15
tracksRegLiveness: true
liveins:
  - { reg: '$f0s', virtual-reg: '' }
  - { reg: '$r2d', virtual-reg: '' }
body:             |
  bb.0.entry:
    liveins: $f0s, $r2d

    LTEBRCompare $f0s, $f0s, implicit-def $cc
    $f2s = LER $f0s
    INLINEASM &"blah $0", 1, 9, $f2s
    CondReturn 15, 4, implicit $f0s, implicit $cc

  bb.1.store:
    liveins: $f0s, $r2d

    STE $f0s, killed $r2d, 0, $noreg :: (store 4 into %ir.dest)
    Return implicit $f0s

...