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llvm-mirror/test/CodeGen/X86/fma.ll
Cameron Zwarich c23366d357 Add an intrinsic and codegen support for fused multiply-accumulate. The intent
is to use this for architectures that have a native FMA instruction.

llvm-svn: 134742
2011-07-08 21:39:21 +00:00

34 lines
1.0 KiB
LLVM

; RUN: llc < %s -mtriple=i386-apple-darwin10 | FileCheck %s
; RUN: llc < %s -mtriple=x86_64-apple-darwin10 | FileCheck %s
; CHECK: test_f32
; CHECK: _fmaf
define float @test_f32(float %a, float %b, float %c) nounwind readnone ssp {
entry:
%call = tail call float @llvm.fma.f32(float %a, float %b, float %c) nounwind readnone
ret float %call
}
; CHECK: test_f64
; CHECK: _fma
define double @test_f64(double %a, double %b, double %c) nounwind readnone ssp {
entry:
%call = tail call double @llvm.fma.f64(double %a, double %b, double %c) nounwind readnone
ret double %call
}
; CHECK: test_f80
; CHECK: _fmal
define x86_fp80 @test_f80(x86_fp80 %a, x86_fp80 %b, x86_fp80 %c) nounwind readnone ssp {
entry:
%call = tail call x86_fp80 @llvm.fma.f80(x86_fp80 %a, x86_fp80 %b, x86_fp80 %c) nounwind readnone
ret x86_fp80 %call
}
declare float @llvm.fma.f32(float, float, float) nounwind readnone
declare double @llvm.fma.f64(double, double, double) nounwind readnone
declare x86_fp80 @llvm.fma.f80(x86_fp80, x86_fp80, x86_fp80) nounwind readnone