test/CodeGen/Mips/fmadd1.ll

; Check that madd.[ds], msub.[ds], nmadd.[ds], and nmsub.[ds] are supported
; correctly.
; The spec for nmadd.[ds], and nmsub.[ds] does not state that they obey the
; the Has2008 and ABS2008 configuration bits which govern the conformance to
; IEEE 754 (1985) and IEEE 754 (2008). These instructions are therefore only
; available when -enable-no-nans-fp-math is given.

; RUN: llc < %s -march=mipsel   -mcpu=mips32              -enable-no-nans-fp-math | FileCheck %s -check-prefix=ALL -check-prefix=32   -check-prefix=32-NONAN
; RUN: llc < %s -march=mipsel   -mcpu=mips32r2            -enable-no-nans-fp-math | FileCheck %s -check-prefix=ALL -check-prefix=32R2 -check-prefix=32R2-NONAN
; RUN: llc < %s -march=mipsel   -mcpu=mips32r6            -enable-no-nans-fp-math | FileCheck %s -check-prefix=ALL -check-prefix=32R6 -check-prefix=32R6-NONAN
; RUN: llc < %s -march=mips64el -mcpu=mips64   -mattr=n64 -enable-no-nans-fp-math | FileCheck %s -check-prefix=ALL -check-prefix=64   -check-prefix=64-NONAN
; RUN: llc < %s -march=mips64el -mcpu=mips64r2 -mattr=n64 -enable-no-nans-fp-math | FileCheck %s -check-prefix=ALL -check-prefix=64R2 -check-prefix=64R2-NONAN
; RUN: llc < %s -march=mips64el -mcpu=mips64r6 -mattr=n64 -enable-no-nans-fp-math | FileCheck %s -check-prefix=ALL -check-prefix=64R6 -check-prefix=64R6-NONAN
; RUN: llc < %s -march=mipsel   -mcpu=mips32              | FileCheck %s -check-prefix=ALL -check-prefix=32 -check-prefix=32-NAN
; RUN: llc < %s -march=mipsel   -mcpu=mips32r2            | FileCheck %s -check-prefix=ALL -check-prefix=32R2 -check-prefix=32R2-NAN
; RUN: llc < %s -march=mipsel   -mcpu=mips32r6            | FileCheck %s -check-prefix=ALL -check-prefix=32R6 -check-prefix=32R6-NAN
; RUN: llc < %s -march=mips64el -mcpu=mips64   -mattr=n64 | FileCheck %s -check-prefix=ALL -check-prefix=64   -check-prefix=64-NAN
; RUN: llc < %s -march=mips64el -mcpu=mips64r2 -mattr=n64 | FileCheck %s -check-prefix=ALL -check-prefix=64R2 -check-prefix=64R2-NAN
; RUN: llc < %s -march=mips64el -mcpu=mips64r6 -mattr=n64 | FileCheck %s -check-prefix=ALL -check-prefix=64R6 -check-prefix=64R6-NAN

define float @FOO0float(float %a, float %b, float %c) nounwind readnone {
entry:
; ALL-LABEL: FOO0float:

; 32-DAG:        mtc1 $6, $[[T0:f[0-9]+]]
; 32-DAG:        mul.s $[[T1:f[0-9]+]], $f12, $f14
; 32-DAG:        add.s $[[T2:f[0-9]+]], $[[T1]], $[[T0]]
; 32-DAG:        mtc1 $zero, $[[T2:f[0-9]+]]
; 32-DAG:        add.s $f0, $[[T1]], $[[T2]]

; 32R2:          mtc1 $6, $[[T0:f[0-9]+]]
; 32R2:          madd.s $[[T1:f[0-9]+]], $[[T0]], $f12, $f14
; 32R2:          mtc1 $zero, $[[T2:f[0-9]+]]
; 32R2:          add.s $f0, $[[T1]], $[[T2]]

; 32R6-DAG:      mtc1 $6, $[[T0:f[0-9]+]]
; 32R6-DAG:      mul.s $[[T1:f[0-9]+]], $f12, $f14
; 32R6-DAG:      add.s $[[T2:f[0-9]+]], $[[T1]], $[[T0]]
; 32R6-DAG:      mtc1 $zero, $[[T2:f[0-9]+]]
; 32R6-DAG:      add.s $f0, $[[T1]], $[[T2]]

; 64-DAG:        mul.s $[[T1:f[0-9]+]], $f12, $f13
; 64-DAG:        add.s $[[T2:f[0-9]+]], $[[T1]], $f14
; 64-DAG:        mtc1 $zero, $[[T2:f[0-9]+]]
; 64-DAG:        add.s $f0, $[[T1]], $[[T2]]

; 64R2:          madd.s $[[T0:f[0-9]+]], $f14, $f12, $f13
; 64R2:          mtc1 $zero, $[[T1:f[0-9]+]]
; 64R2:          add.s $f0, $[[T0]], $[[T1]]

; 64R6-DAG:      mul.s $[[T0:f[0-9]+]], $f12, $f13
; 64R6-DAG:      add.s $[[T1:f[0-9]+]], $[[T0]], $f14
; 64R6-DAG:      mtc1 $zero, $[[T2:f[0-9]+]]
; 64R6-DAG:      add.s $f0, $[[T1]], $[[T2]]

  %mul = fmul float %a, %b
  %add = fadd float %mul, %c
  %add1 = fadd float %add, 0.000000e+00
  ret float %add1
}

define float @FOO1float(float %a, float %b, float %c) nounwind readnone {
entry:
; ALL-LABEL: FOO1float:

; 32-DAG:        mtc1 $6, $[[T0:f[0-9]+]]
; 32-DAG:        mul.s $[[T1:f[0-9]+]], $f12, $f14
; 32-DAG:        sub.s $[[T2:f[0-9]+]], $[[T1]], $[[T0]]
; 32-DAG:        mtc1 $zero, $[[T2:f[0-9]+]]
; 32-DAG:        add.s $f0, $[[T1]], $[[T2]]

; 32R2:          mtc1 $6, $[[T0:f[0-9]+]]
; 32R2:          msub.s $[[T1:f[0-9]+]], $[[T0]], $f12, $f14
; 32R2:          mtc1 $zero, $[[T2:f[0-9]+]]
; 32R2:          add.s $f0, $[[T1]], $[[T2]]

; 32R6-DAG:      mtc1 $6, $[[T0:f[0-9]+]]
; 32R6-DAG:      mul.s $[[T1:f[0-9]+]], $f12, $f14
; 32R6-DAG:      sub.s $[[T2:f[0-9]+]], $[[T1]], $[[T0]]
; 32R6-DAG:      mtc1 $zero, $[[T2:f[0-9]+]]
; 32R6-DAG:      add.s $f0, $[[T1]], $[[T2]]

; 64-DAG:        mul.s $[[T1:f[0-9]+]], $f12, $f13
; 64-DAG:        sub.s $[[T2:f[0-9]+]], $[[T1]], $f14
; 64-DAG:        mtc1 $zero, $[[T2:f[0-9]+]]
; 64-DAG:        add.s $f0, $[[T1]], $[[T2]]

; 64R2:          msub.s $[[T0:f[0-9]+]], $f14, $f12, $f13
; 64R2:          mtc1 $zero, $[[T1:f[0-9]+]]
; 64R2:          add.s $f0, $[[T0]], $[[T1]]

; 64R6-DAG:      mul.s $[[T0:f[0-9]+]], $f12, $f13
; 64R6-DAG:      sub.s $[[T1:f[0-9]+]], $[[T0]], $f14
; 64R6-DAG:      mtc1 $zero, $[[T2:f[0-9]+]]
; 64R6-DAG:      add.s $f0, $[[T1]], $[[T2]]

  %mul = fmul float %a, %b
  %sub = fsub float %mul, %c
  %add = fadd float %sub, 0.000000e+00
  ret float %add
}

define float @FOO2float(float %a, float %b, float %c) nounwind readnone {
entry:
; ALL-LABEL: FOO2float:

; 32-DAG:        mtc1 $6, $[[T0:f[0-9]+]]
; 32-DAG:        mul.s $[[T1:f[0-9]+]], $f12, $f14
; 32-DAG:        add.s $[[T2:f[0-9]+]], $[[T1]], $[[T0]]
; 32-DAG:        mtc1 $zero, $[[T2:f[0-9]+]]
; 32-DAG:        sub.s $f0, $[[T2]], $[[T1]]

; 32R2-NONAN:    mtc1 $6, $[[T0:f[0-9]+]]
; 32R2-NONAN:    nmadd.s $f0, $[[T0]], $f12, $f14

; 32R2-NAN:      mtc1 $6, $[[T0:f[0-9]+]]
; 32R2-NAN:      madd.s $[[T1:f[0-9]+]], $[[T0]], $f12, $f14
; 32R2-NAN:      mtc1 $zero, $[[T2:f[0-9]+]]
; 32R2-NAN:      sub.s  $f0, $[[T2]], $[[T1]]

; 32R6-DAG:      mtc1 $6, $[[T0:f[0-9]+]]
; 32R6-DAG:      mul.s $[[T1:f[0-9]+]], $f12, $f14
; 32R6-DAG:      add.s $[[T2:f[0-9]+]], $[[T1]], $[[T0]]
; 32R6-DAG:      mtc1 $zero, $[[T2:f[0-9]+]]
; 32R6-DAG:      sub.s $f0, $[[T2]], $[[T1]]

; 64-DAG:        mul.s $[[T1:f[0-9]+]], $f12, $f13
; 64-DAG:        add.s $[[T2:f[0-9]+]], $[[T1]], $f14
; 64-DAG:        mtc1 $zero, $[[T2:f[0-9]+]]
; 64-DAG:        sub.s $f0, $[[T2]], $[[T1]]

; 64R2-NONAN:    nmadd.s $f0, $f14, $f12, $f13

; 64R2-NAN:      madd.s $[[T0:f[0-9]+]], $f14, $f12, $f13
; 64R2-NAN:      mtc1 $zero, $[[T1:f[0-9]+]]
; 64R2-NAN:      sub.s  $f0, $[[T1]], $[[T0]]

; 64R6-DAG:      mul.s $[[T1:f[0-9]+]], $f12, $f13
; 64R6-DAG:      add.s $[[T2:f[0-9]+]], $[[T1]], $f14
; 64R6-DAG:      mtc1 $zero, $[[T2:f[0-9]+]]
; 64R6-DAG:      sub.s $f0, $[[T2]], $[[T1]]

  %mul = fmul float %a, %b
  %add = fadd float %mul, %c
  %sub = fsub float 0.000000e+00, %add
  ret float %sub
}

define float @FOO3float(float %a, float %b, float %c) nounwind readnone {
entry:
; ALL-LABEL: FOO3float:

; 32-DAG:        mtc1 $6, $[[T0:f[0-9]+]]
; 32-DAG:        mul.s $[[T1:f[0-9]+]], $f12, $f14
; 32-DAG:        sub.s $[[T2:f[0-9]+]], $[[T1]], $[[T0]]
; 32-DAG:        mtc1 $zero, $[[T2:f[0-9]+]]
; 32-DAG:        sub.s $f0, $[[T2]], $[[T1]]

; 32R2-NONAN:    mtc1 $6, $[[T0:f[0-9]+]]
; 32R2-NONAN:    nmsub.s $f0, $[[T0]], $f12, $f14

; 32R2-NAN:      mtc1 $6, $[[T0:f[0-9]+]]
; 32R2-NAN:      msub.s $[[T1:f[0-9]+]], $[[T0]], $f12, $f14
; 32R2-NAN:      mtc1 $zero, $[[T2:f[0-9]+]]
; 32R2-NAN:      sub.s  $f0, $[[T2]], $[[T1]]

; 64-DAG:        mul.s $[[T1:f[0-9]+]], $f12, $f13
; 64-DAG:        sub.s $[[T2:f[0-9]+]], $[[T1]], $f14
; 64-DAG:        mtc1 $zero, $[[T2:f[0-9]+]]
; 64-DAG:        sub.s $f0, $[[T2]], $[[T1]]

; 64R2-NAN:      msub.s $[[T0:f[0-9]+]], $f14, $f12, $f13
; 64R2-NAN:      mtc1 $zero, $[[T1:f[0-9]+]]
; 64R2-NAN:      sub.s  $f0, $[[T1]], $[[T0]]

; 64R6-DAG:      mul.s $[[T1:f[0-9]+]], $f12, $f13
; 64R6-DAG:      sub.s $[[T2:f[0-9]+]], $[[T1]], $f14
; 64R6-DAG:      mtc1 $zero, $[[T2:f[0-9]+]]
; 64R6-DAG:      sub.s $f0, $[[T2]], $[[T1]]

  %mul = fmul float %a, %b
  %sub = fsub float %mul, %c
  %sub1 = fsub float 0.000000e+00, %sub
  ret float %sub1
}

define double @FOO10double(double %a, double %b, double %c) nounwind readnone {
entry:
; ALL-LABEL: FOO10double:

; 32-DAG:        ldc1 $[[T0:f[0-9]+]], 16($sp)
; 32-DAG:        mul.d $[[T1:f[0-9]+]], $f12, $f14
; 32-DAG:        add.d $[[T2:f[0-9]+]], $[[T1]], $[[T0]]
; 32-DAG:        mtc1 $zero, $[[T2:f[0-9]+]]
; 32-DAG:        add.d $f0, $[[T1]], $[[T2]]

; 32R2:          ldc1 $[[T0:f[0-9]+]], 16($sp)
; 32R2:          madd.d $[[T1:f[0-9]+]], $[[T0]], $f12, $f14
; 32R2:          mtc1 $zero, $[[T2:f[0-9]+]]
; 32R2:          mthc1 $zero, $[[T2]]
; 32R2:          add.d $f0, $[[T1]], $[[T2]]

; 32R6-DAG:      ldc1 $[[T0:f[0-9]+]], 16($sp)
; 32R6-DAG:      mul.d $[[T1:f[0-9]+]], $f12, $f14
; 32R6-DAG:      add.d $[[T2:f[0-9]+]], $[[T1]], $[[T0]]
; 32R6-DAG:      mtc1 $zero, $[[T2:f[0-9]+]]
; 32R6-DAG:      add.d $f0, $[[T1]], $[[T2]]

; 64-DAG:        mul.d $[[T1:f[0-9]+]], $f12, $f13
; 64-DAG:        add.d $[[T2:f[0-9]+]], $[[T1]], $f14
; 64-DAG:        dmtc1 $zero, $[[T2:f[0-9]+]]
; 64-DAG:        add.d $f0, $[[T1]], $[[T2]]

; 64R2:          madd.d $[[T0:f[0-9]+]], $f14, $f12, $f13
; 64R2:          mtc1 $zero, $[[T1:f[0-9]+]]
; 64R2:          add.d $f0, $[[T0]], $[[T1]]

; 64R6-DAG:      mul.d $[[T1:f[0-9]+]], $f12, $f13
; 64R6-DAG:      add.d $[[T2:f[0-9]+]], $[[T1]], $f14
; 64R6-DAG:      dmtc1 $zero, $[[T2:f[0-9]+]]
; 64R6-DAG:      add.d $f0, $[[T1]], $[[T2]]

  %mul = fmul double %a, %b
  %add = fadd double %mul, %c
  %add1 = fadd double %add, 0.000000e+00
  ret double %add1
}

define double @FOO11double(double %a, double %b, double %c) nounwind readnone {
entry:
; ALL-LABEL: FOO11double:

; 32-DAG:        ldc1 $[[T0:f[0-9]+]], 16($sp)
; 32-DAG:        mul.d $[[T1:f[0-9]+]], $f12, $f14
; 32-DAG:        sub.d $[[T2:f[0-9]+]], $[[T1]], $[[T0]]
; 32-DAG:        mtc1 $zero, $[[T2:f[0-9]+]]
; 32-DAG:        add.d $f0, $[[T1]], $[[T2]]

; 32R2:          ldc1 $[[T0:f[0-9]+]], 16($sp)
; 32R2:          msub.d $[[T1:f[0-9]+]], $[[T0]], $f12, $f14
; 32R2:          mtc1 $zero, $[[T2:f[0-9]+]]
; 32R2:          mthc1 $zero, $[[T2]]
; 32R2:          add.d $f0, $[[T1]], $[[T2]]

; 32R6-DAG:      ldc1 $[[T0:f[0-9]+]], 16($sp)
; 32R6-DAG:      mul.d $[[T1:f[0-9]+]], $f12, $f14
; 32R6-DAG:      sub.d $[[T2:f[0-9]+]], $[[T1]], $[[T0]]
; 32R6-DAG:      mtc1 $zero, $[[T2:f[0-9]+]]
; 32R6-DAG:      add.d $f0, $[[T1]], $[[T2]]

; 64-DAG:        mul.d $[[T1:f[0-9]+]], $f12, $f13
; 64-DAG:        sub.d $[[T2:f[0-9]+]], $[[T1]], $f14
; 64-DAG:        dmtc1 $zero, $[[T2:f[0-9]+]]
; 64-DAG:        add.d $f0, $[[T1]], $[[T2]]

; 64R2:          msub.d $[[T0:f[0-9]+]], $f14, $f12, $f13
; 64R2:          mtc1 $zero, $[[T1:f[0-9]+]]
; 64R2:          add.d $f0, $[[T0]], $[[T1]]

; 64R6-DAG:      mul.d $[[T1:f[0-9]+]], $f12, $f13
; 64R6-DAG:      sub.d $[[T2:f[0-9]+]], $[[T1]], $f14
; 64R6-DAG:      dmtc1 $zero, $[[T2:f[0-9]+]]
; 64R6-DAG:      add.d $f0, $[[T1]], $[[T2]]

  %mul = fmul double %a, %b
  %sub = fsub double %mul, %c
  %add = fadd double %sub, 0.000000e+00
  ret double %add
}

define double @FOO12double(double %a, double %b, double %c) nounwind readnone {
entry:
; ALL-LABEL: FOO12double:

; 32-DAG:        ldc1 $[[T0:f[0-9]+]], 16($sp)
; 32-DAG:        mul.d $[[T1:f[0-9]+]], $f12, $f14
; 32-DAG:        add.d $[[T2:f[0-9]+]], $[[T1]], $[[T0]]
; 32-DAG:        mtc1 $zero, $[[T2:f[0-9]+]]
; 32-DAG:        sub.d $f0, $[[T2]], $[[T1]]

; 32R2-NONAN:    ldc1 $[[T0:f[0-9]+]], 16($sp)
; 32R2-NONAN:    nmadd.d $f0, $[[T0]], $f12, $f14

; 32R2-NAN:      ldc1 $[[T0:f[0-9]+]], 16($sp)
; 32R2-NAN:      madd.d $[[T1:f[0-9]+]], $[[T0]], $f12, $f14
; 32R2-NAN:      mtc1 $zero, $[[T2:f[0-9]+]]
; 32R2-NAN:      mthc1 $zero, $[[T2]]
; 32R2-NAN:      sub.d $f0, $[[T2]], $[[T1]]

; 32R6-DAG:      ldc1 $[[T0:f[0-9]+]], 16($sp)
; 32R6-DAG:      mul.d $[[T1:f[0-9]+]], $f12, $f14
; 32R6-DAG:      add.d $[[T2:f[0-9]+]], $[[T1]], $[[T0]]
; 32R6-DAG:      mtc1 $zero, $[[T2:f[0-9]+]]
; 32R6-DAG:      sub.d $f0, $[[T2]], $[[T1]]

; 64-DAG:        mul.d $[[T1:f[0-9]+]], $f12, $f13
; 64-DAG:        add.d $[[T2:f[0-9]+]], $[[T1]], $f14
; 64-DAG:        dmtc1 $zero, $[[T2:f[0-9]+]]
; 64-DAG:        sub.d $f0, $[[T2]], $[[T1]]

; 64R2-NONAN:    nmadd.d $f0, $f14, $f12, $f13

; 64R2-NAN:      madd.d $[[T0:f[0-9]+]], $f14, $f12, $f13
; 64R2-NAN:      mtc1 $zero, $[[T1:f[0-9]+]]
; 64R2-NAN:      sub.d $f0, $[[T1]], $[[T0]]

; 64R6-DAG:      mul.d $[[T1:f[0-9]+]], $f12, $f13
; 64R6-DAG:      add.d $[[T2:f[0-9]+]], $[[T1]], $f14
; 64R6-DAG:      dmtc1 $zero, $[[T2:f[0-9]+]]
; 64R6-DAG:      sub.d $f0, $[[T2]], $[[T1]]

  %mul = fmul double %a, %b
  %add = fadd double %mul, %c
  %sub = fsub double 0.000000e+00, %add
  ret double %sub
}

define double @FOO13double(double %a, double %b, double %c) nounwind readnone {
entry:
; ALL-LABEL: FOO13double:

; 32-DAG:        ldc1 $[[T0:f[0-9]+]], 16($sp)
; 32-DAG:        mul.d $[[T1:f[0-9]+]], $f12, $f14
; 32-DAG:        sub.d $[[T2:f[0-9]+]], $[[T1]], $[[T0]]
; 32-DAG:        mtc1 $zero, $[[T2:f[0-9]+]]
; 32-DAG:        sub.d $f0, $[[T2]], $[[T1]]

; 32R2-NONAN:    ldc1 $[[T0:f[0-9]+]], 16($sp)
; 32R2-NONAN:    nmsub.d $f0, $[[T0]], $f12, $f14

; 32R2-NAN:      ldc1 $[[T0:f[0-9]+]], 16($sp)
; 32R2-NAN:      msub.d $[[T1:f[0-9]+]], $[[T0]], $f12, $f14
; 32R2-NAN:      mtc1 $zero, $[[T2:f[0-9]+]]
; 32R2-NAN:      mthc1 $zero, $[[T2]]
; 32R2-NAN:      sub.d $f0, $[[T2]], $[[T1]]

; 32R6-DAG:      ldc1 $[[T0:f[0-9]+]], 16($sp)
; 32R6-DAG:      mul.d $[[T1:f[0-9]+]], $f12, $f14
; 32R6-DAG:      sub.d $[[T2:f[0-9]+]], $[[T1]], $[[T0]]
; 32R6-DAG:      mtc1 $zero, $[[T2:f[0-9]+]]
; 32R6-DAG:      sub.d $f0, $[[T2]], $[[T1]]

; 64-DAG:        mul.d $[[T1:f[0-9]+]], $f12, $f13
; 64-DAG:        sub.d $[[T2:f[0-9]+]], $[[T1]], $f14
; 64-DAG:        dmtc1 $zero, $[[T2:f[0-9]+]]
; 64-DAG:        sub.d $f0, $[[T2]], $[[T1]]

; 64R2-NONAN:    nmsub.d $f0, $f14, $f12, $f13

; 64R2-NAN:      msub.d $[[T0:f[0-9]+]], $f14, $f12, $f13
; 64R2-NAN:      mtc1 $zero, $[[T1:f[0-9]+]]
; 64R2-NAN:      sub.d $f0, $[[T1]], $[[T0]]

; 64R6-DAG:      mul.d $[[T1:f[0-9]+]], $f12, $f13
; 64R6-DAG:      sub.d $[[T2:f[0-9]+]], $[[T1]], $f14
; 64R6-DAG:      dmtc1 $zero, $[[T2:f[0-9]+]]
; 64R6-DAG:      sub.d $f0, $[[T2]], $[[T1]]

  %mul = fmul double %a, %b
  %sub = fsub double %mul, %c
  %sub1 = fsub double 0.000000e+00, %sub
  ret double %sub1
}