llvm/test/CodeGen/X86/fast-isel-undef-fp.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc %s -o - -verify-machineinstrs -fast-isel=true -mattr=-sse | FileCheck %s

target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

define dso_local x86_fp80 @test_f80() {
; CHECK-LABEL: test_f80:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    fldz
; CHECK-NEXT:    fchs
; CHECK-NEXT:    retq
entry:
  %fneg1 = fneg contract x86_fp80 undef
  br label %exit

exit:                                             ; preds = %entry
  ret x86_fp80 %fneg1
}

define dso_local void @test_f32(float *%p) {
; CHECK-LABEL: test_f32:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    fldz
; CHECK-NEXT:    fchs
; CHECK-NEXT:    fstps (%rdi)
; CHECK-NEXT:    retq
entry:
  %fneg1 = fneg contract float undef
  br label %exit

exit:                                             ; preds = %entry
  store float %fneg1, float *%p
  ret void
}

define dso_local void @test_f64(double *%p) {
; CHECK-LABEL: test_f64:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    fldz
; CHECK-NEXT:    fchs
; CHECK-NEXT:    fstpl (%rdi)
; CHECK-NEXT:    retq
entry:
  %fneg1 = fneg contract double undef
  br label %exit

exit:                                             ; preds = %entry
  store double %fneg1, double *%p
  ret void
}