| ; RUN: llc -fp-contract=fast -mattr=+fma -disable-cgp < %s -o - | FileCheck %s |
| ; Check that the 2nd and 3rd arguments of fmaXXX231 reg1, reg2, mem3 are not commuted. |
| ; <rdar://problem/16800495> |
| target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-apple-macosx" |
| |
| ; CHECK-LABEL: test1: |
| ; %arg lives in xmm0 and it shouldn't be redefined until it is used in the FMA. |
| ; CHECK-NOT: {{.*}}, %xmm0 |
| ; %addr lives in rdi. |
| ; %addr2 lives in rsi. |
| ; CHECK: vmovss (%rdi), [[ADDR:%xmm[0-9]+]] |
| ; The assembly syntax is in the reverse order. |
| ; CHECK: vfmadd231ss (%rsi), [[ADDR]], %xmm0 |
| define void @test1(float* %addr, float* %addr2, float %arg) { |
| entry: |
| br label %loop |
| |
| loop: |
| %sum0 = phi float [ %fma, %loop ], [ %arg, %entry ] |
| %addrVal = load float, float* %addr, align 4 |
| %addr2Val = load float, float* %addr2, align 4 |
| %fmul = fmul float %addrVal, %addr2Val |
| %fma = fadd float %sum0, %fmul |
| br i1 true, label %exit, label %loop |
| |
| exit: |
| store float %fma, float* %addr, align 4 |
| ret void |
| } |
