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llvm/test/CodeGen/X86/strict-fadd-combines.ll
- This file was added.
| ; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s | |||||
| define float @fneg_strict_fadd_to_strict_fsub(float %x, float %y) { | |||||
| ; CHECK: subss %{{.*}}, %{{.*}} | |||||
| ; CHECK-NEXT: retq | |||||
| %neg = fneg float %y | |||||
| %add = call float @llvm.experimental.constrained.fadd.f32(float %x, float %neg, metadata!"round.dynamic", metadata!"fpexcept.strict") | |||||
| ret float %add | |||||
| } | |||||
| define float @fneg_strict_fadd_to_strict_fsub_2(float %x, float %y) { | |||||
| ; CHECK: subss %{{.*}}, %{{.*}} | |||||
| ; CHECK-NEXT: retq | |||||
| %neg = fneg float %y | |||||
| %add = call float @llvm.experimental.constrained.fadd.f32(float %neg, float %x, metadata!"round.dynamic", metadata!"fpexcept.strict") | |||||
| ret float %add | |||||
| } | |||||
| define double @fneg_strict_fadd_to_strict_fsub_d(double %x, double %y) { | |||||
| ; CHECK: subsd %{{.*}}, %{{.*}} | |||||
| ; CHECK-NEXT: retq | |||||
| %neg = fneg double %y | |||||
| %add = call double @llvm.experimental.constrained.fadd.f64(double %x, double %neg, metadata!"round.dynamic", metadata!"fpexcept.strict") | |||||
| ret double %add | |||||
| } | |||||
| define double @fneg_strict_fadd_to_strict_fsub_2d(double %x, double %y) { | |||||
| ; CHECK: subsd %{{.*}}, %{{.*}} | |||||
| ; CHECK-NEXT: retq | |||||
| %neg = fneg double %y | |||||
| %add = call double @llvm.experimental.constrained.fadd.f64(double %neg, double %x, metadata!"round.dynamic", metadata!"fpexcept.strict") | |||||
| ret double %add | |||||
| } | |||||
| declare float @llvm.experimental.constrained.fadd.f32(float, float, metadata, metadata) | |||||
| declare double @llvm.experimental.constrained.fadd.f64(double, double, metadata, metadata) | |||||