test/CodeGen/Mips/fabs.ll

; Check that abs.[ds] is selected and does not depend on -enable-no-nans-fp-math
; They obey the Has2008 and ABS2008 configuration bits which govern the
; conformance to IEEE 754 (1985) and IEEE 754 (2008). When these bits are not
; present, they confirm to 1985.
; In 1985 mode, abs.[ds] are arithmetic (i.e. they raise invalid operation
; exceptions when given NaN's). In 2008 mode, they are non-arithmetic (i.e.
; they are copies and don't raise any exceptions).

; RUN: llc  < %s -mtriple=mipsel-linux-gnu -mcpu=mips32 | FileCheck %s
; RUN: llc  < %s -mtriple=mipsel-linux-gnu -mcpu=mips32r2 | FileCheck %s
; RUN: llc  < %s -mtriple=mipsel-linux-gnu -mcpu=mips32 -enable-no-nans-fp-math | FileCheck %s

; RUN: llc  < %s -mtriple=mips64el-linux-gnu -mcpu=mips64 | FileCheck %s
; RUN: llc  < %s -mtriple=mips64el-linux-gnu -mcpu=mips64 -enable-no-nans-fp-math | FileCheck %s

define float @foo0(float %a) nounwind readnone {
entry:

; CHECK-LABEL: foo0
; CHECK: abs.s

  %call = tail call float @fabsf(float %a) nounwind readnone
  ret float %call
}

declare float @fabsf(float) nounwind readnone

define double @foo1(double %a) nounwind readnone {
entry:

; CHECK-LABEL: foo1:
; CHECK: abs.d

  %call = tail call double @fabs(double %a) nounwind readnone
  ret double %call
}

declare double @fabs(double) nounwind readnone