third_party/llvm-7.0/llvm/test/CodeGen/ARM/GlobalISel/select-pr35926.mir

# RUN: llc -mtriple arm-gnueabihf -mattr=+vfp4 -run-pass=instruction-select -o - %s | FileCheck %s
--- |
  declare double @llvm.fma.f64(double, double, double) #0
  
  define double @vfnmsd(double %x, double %y, double %z) #1 {
    %minus.y = fsub double -0.000000e+00, %y
    %fma = tail call double @llvm.fma.f64(double %x, double %minus.y, double %z)
    %minus.fma = fsub double -0.000000e+00, %fma
    ret double %minus.fma
  }
  
  ; Function Attrs: nounwind
  declare void @llvm.stackprotector(i8*, i8**) #2
  
  attributes #0 = { nounwind readnone speculatable "target-features"="+vfp4" }
  attributes #1 = { "target-features"="+vfp4" }
  attributes #2 = { nounwind }

...
---
name:            vfnmsd
legalized:       true
regBankSelected: true
selected:        false
body:             |
  bb.1 (%ir-block.0):
    liveins: $d0, $d1, $d2
  
    %0:fprb(s64) = COPY $d0
    %1:fprb(s64) = COPY $d1
    %2:fprb(s64) = COPY $d2
    %3:fprb(s64) = G_FNEG %1
    %4:fprb(s64) = G_FMA %0, %3, %2
    %5:fprb(s64) = G_FNEG %4
    $d0 = COPY %5(s64)
    MOVPCLR 14, $noreg, implicit $d0

# CHECK: %{{[0-9]+}}:dpr = VFNMSD %{{[0-9]+}}, %{{[0-9]+}}, %{{[0-9]+}}, 14, $noreg

...