llvm/test/CodeGen/R600/fmuladd.ll
Niels Ole Salscheider 6e4dbcd115 R600/SI: FMA is faster than fmul and fadd for f64
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188136 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-10 10:38:54 +00:00

32 lines
1.2 KiB
LLVM

; RUN: llc < %s -march=r600 -mcpu=SI | FileCheck %s
; CHECK: @fmuladd_f32
; CHECK: V_MAD_F32 {{VGPR[0-9]+, VGPR[0-9]+, VGPR[0-9]+, VGPR[0-9]+}}
define void @fmuladd_f32(float addrspace(1)* %out, float addrspace(1)* %in1,
float addrspace(1)* %in2, float addrspace(1)* %in3) {
%r0 = load float addrspace(1)* %in1
%r1 = load float addrspace(1)* %in2
%r2 = load float addrspace(1)* %in3
%r3 = tail call float @llvm.fmuladd.f32(float %r0, float %r1, float %r2)
store float %r3, float addrspace(1)* %out
ret void
}
declare float @llvm.fmuladd.f32(float, float, float)
; CHECK: @fmuladd_f64
; CHECK: V_FMA_F64 {{VGPR[0-9]+_VGPR[0-9]+, VGPR[0-9]+_VGPR[0-9]+, VGPR[0-9]+_VGPR[0-9]+, VGPR[0-9]+_VGPR[0-9]+}}
define void @fmuladd_f64(double addrspace(1)* %out, double addrspace(1)* %in1,
double addrspace(1)* %in2, double addrspace(1)* %in3) {
%r0 = load double addrspace(1)* %in1
%r1 = load double addrspace(1)* %in2
%r2 = load double addrspace(1)* %in3
%r3 = tail call double @llvm.fmuladd.f64(double %r0, double %r1, double %r2)
store double %r3, double addrspace(1)* %out
ret void
}
declare double @llvm.fmuladd.f64(double, double, double)