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1; Check whether nmadd/nmsub instructions are properly generated2; RUN: llc < %s -mtriple=mipsel -mcpu=mips32r2 -enable-no-nans-fp-math | FileCheck %s -check-prefixes=ALL,CHECK-NM3; RUN: llc < %s -mtriple=mipsel -mcpu=mips32r2 -mattr=+fp64 -enable-no-nans-fp-math | FileCheck %s -check-prefixes=ALL,CHECK-NM4; RUN: llc < %s -mtriple=mipsel -mcpu=mips32r2 -mattr=micromips -enable-no-nans-fp-math -asm-show-inst | FileCheck %s -check-prefixes=ALL,CHECK-NM,CHECK-MM5; RUN: llc < %s -mtriple=mips64el -mcpu=mips64 -target-abi=n64 -enable-no-nans-fp-math | FileCheck %s -check-prefixes=ALL,CHECK-NM-646; RUN: llc < %s -mtriple=mips64el -mcpu=mips64r2 -target-abi=n64 -enable-no-nans-fp-math | FileCheck %s -check-prefixes=ALL,CHECK-NM-647; RUN: llc < %s -mtriple=mips64el -mcpu=mips4 -target-abi=n64 -enable-no-nans-fp-math | FileCheck %s -check-prefixes=ALL,CHECK-NM-648; RUN: llc < %s -mtriple=mipsel -mcpu=mips32 -enable-no-nans-fp-math | FileCheck %s -check-prefixes=ALL,CHECK-NOT-NM9; RUN: llc < %s -mtriple=mipsel -mcpu=mips32r6 -enable-no-nans-fp-math | FileCheck %s -check-prefixes=ALL,CHECK-NOT-NM10; RUN: llc < %s -mtriple=mips64el -mcpu=mips3 -target-abi=n64 -enable-no-nans-fp-math | FileCheck %s -check-prefixes=ALL,CHECK-NOT-NM-6411; RUN: llc < %s -mtriple=mipsel -mcpu=mips32r6 -mattr=micromips -enable-no-nans-fp-math | FileCheck %s -check-prefixes=ALL,CHECK-NOT-NM12; RUN: llc < %s -mtriple=mipsel -mcpu=mips32r3 -mattr=micromips -enable-no-nans-fp-math | FileCheck %s -check-prefixes=ALL,CHECK-NM13 14define float @add1(float %f, float %g, float %h) local_unnamed_addr #0 {15entry:16; ALL-LABEL: add117 18; CHECK-NM-64: nmadd.s $f0, $f14, $f12, $f1319; CHECK-NM: nmadd.s $f0, $f0, $f12, $f1420; CHECK-MM: NMADD_S_MM21; CHECK-NOT-NM-64: mul.s $f0, $f12, $f1322; CHECK-NOT-NM-64: neg.s $f0, $f023; CHECK-NOT-NM: mul.s $f0, $f12, $f1424; CHECK-NOT-NM: neg.s $f0, $f025 26 %mul = fmul nnan float %f, %g27 %add = fadd nnan float %mul, %h28 %sub = fsub nnan float -0.000000e+00, %add29 ret float %sub30}31 32define double @add2(double %f, double %g, double %h) local_unnamed_addr #0 {33entry:34; ALL-LABEL: add235 36; CHECK-NM-64: nmadd.d $f0, $f14, $f12, $f1337; CHECK-NM: nmadd.d $f0, $f0, $f12, $f1438; CHECK-MM: NMADD_D32_MM39; CHECK-NOT-NM-64: mul.d $f0, $f12, $f1340; CHECK-NOT-NM-64: neg.d $f0, $f041; CHECK-NOT-NM: mul.d $f0, $f12, $f1442; CHECK-NOT-NM: neg.d $f0, $f043 44 %mul = fmul nnan double %f, %g45 %add = fadd nnan double %mul, %h46 %sub = fsub nnan double -0.000000e+00, %add47 ret double %sub48}49 50define float @sub1(float %f, float %g, float %h) local_unnamed_addr #0 {51entry:52; ALL-LABEL: sub153 54; CHECK-NM-64: nmsub.s $f0, $f14, $f12, $f1355; CHECK-NM: nmsub.s $f0, $f0, $f12, $f1456; CHECK-MM: NMSUB_S_MM57; CHECK-NOT-NM-64: mul.s $f0, $f12, $f1358; CHECK-NOT-NM-64: neg.s $f0, $f059; CHECK-NOT-NM: mul.s $f0, $f12, $f1460; CHECK-NOT-NM: neg.s $f0, $f061 62 %mul = fmul nnan float %f, %g63 %sub = fsub nnan float %mul, %h64 %sub1 = fsub nnan float -0.000000e+00, %sub65 ret float %sub166}67 68define double @sub2(double %f, double %g, double %h) local_unnamed_addr #0 {69entry:70; ALL-LABEL: sub271 72; CHECK-NM-64: nmsub.d $f0, $f14, $f12, $f1373; CHECK-NM: nmsub.d $f0, $f0, $f12, $f1474; CHECK-MM: NMSUB_D32_MM75; CHECK-NOT-NM-64: mul.d $f0, $f12, $f1376; CHECK-NOT-NM-64: neg.d $f0, $f077; CHECK-NOT-NM: mul.d $f0, $f12, $f1478; CHECK-NOT-NM: neg.d $f0, $f079 80 %mul = fmul nnan double %f, %g81 %sub = fsub nnan double %mul, %h82 %sub1 = fsub nnan double -0.000000e+00, %sub83 ret double %sub184}85