| ; 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 | |
| } |