From a61aa38ee1739c8e89b8faa769a8deb7eb16e83c Mon Sep 17 00:00:00 2001 From: Daniel Sanders Date: Thu, 12 Jun 2014 11:04:18 +0000 Subject: [mips][mips64r6] madd.[ds], msub.[ds], nmadd.[ds], and nmsub.[ds] are not available on MIPS32r6/MIPS64r6 Summary: This patch updates both the assembler and the code generator. MIPS32r6/MIPS64r6 replaces them with maddf.[ds] and msubf.[ds] which are fused multiply-add/sub operations. We don't emit these yet, this patch only prevents the removed instructions from being emitted. Depends on D3955 Reviewers: jkolek, zoran.jovanovic, vmedic Reviewed By: vmedic Differential Revision: http://reviews.llvm.org/D3956 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210763 91177308-0d34-0410-b5e6-96231b3b80d8 --- test/CodeGen/Mips/fmadd1.ll | 324 +++++++++++++++++++++++++++++++++++++++----- 1 file changed, 292 insertions(+), 32 deletions(-) (limited to 'test/CodeGen') diff --git a/test/CodeGen/Mips/fmadd1.ll b/test/CodeGen/Mips/fmadd1.ll index a9a8e212e4..bd672ef4b0 100644 --- a/test/CodeGen/Mips/fmadd1.ll +++ b/test/CodeGen/Mips/fmadd1.ll @@ -5,15 +5,54 @@ ; 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=mips32r2 -enable-no-nans-fp-math | FileCheck %s -check-prefix=32R2 -check-prefix=CHECK -; RUN: llc < %s -march=mips64el -mcpu=mips64r2 -mattr=n64 -enable-no-nans-fp-math | FileCheck %s -check-prefix=64R2 -check-prefix=CHECK -; RUN: llc < %s -march=mipsel -mcpu=mips32r2 | FileCheck %s -check-prefix=32R2NAN -check-prefix=CHECK -; RUN: llc < %s -march=mips64el -mcpu=mips64r2 -mattr=n64 | FileCheck %s -check-prefix=64R2NAN -check-prefix=CHECK +; 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: -; CHECK-LABEL: FOO0float: -; CHECK: madd.s +; 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 @@ -22,8 +61,39 @@ entry: define float @FOO1float(float %a, float %b, float %c) nounwind readnone { entry: -; CHECK-LABEL: FOO1float: -; CHECK: msub.s +; 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 @@ -32,11 +102,44 @@ entry: define float @FOO2float(float %a, float %b, float %c) nounwind readnone { entry: -; CHECK-LABEL: FOO2float: -; 32R2: nmadd.s -; 64R2: nmadd.s -; 32R2NAN: madd.s -; 64R2NAN: madd.s +; 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 @@ -45,11 +148,36 @@ entry: define float @FOO3float(float %a, float %b, float %c) nounwind readnone { entry: -; CHECK-LABEL: FOO3float: -; 32R2: nmsub.s -; 64R2: nmsub.s -; 32R2NAN: msub.s -; 64R2NAN: msub.s +; 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 @@ -58,8 +186,40 @@ entry: define double @FOO10double(double %a, double %b, double %c) nounwind readnone { entry: -; CHECK-LABEL: FOO10double: -; CHECK: madd.d +; 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[02468]+]] +; 32R2: mtc1 $zero, ${{f[13579]+}} +; 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 @@ -68,8 +228,40 @@ entry: define double @FOO11double(double %a, double %b, double %c) nounwind readnone { entry: -; CHECK-LABEL: FOO11double: -; CHECK: msub.d +; 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[02468]+]] +; 32R2: mtc1 $zero, ${{f[13579]+}} +; 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 @@ -78,11 +270,45 @@ entry: define double @FOO12double(double %a, double %b, double %c) nounwind readnone { entry: -; CHECK-LABEL: FOO12double: -; 32R2: nmadd.d -; 64R2: nmadd.d -; 32R2NAN: madd.d -; 64R2NAN: madd.d +; 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[02468]+]] +; 32R2-NAN: mtc1 $zero, ${{f[13579]+}} +; 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 @@ -91,11 +317,45 @@ entry: define double @FOO13double(double %a, double %b, double %c) nounwind readnone { entry: -; CHECK-LABEL: FOO13double: -; 32R2: nmsub.d -; 64R2: nmsub.d -; 32R2NAN: msub.d -; 64R2NAN: msub.d +; 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[02468]+]] +; 32R2-NAN: mtc1 $zero, ${{f[13579]+}} +; 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 -- cgit v1.2.3