1 ; RUN: llc -fp-contract=fast -mattr=+fma -disable-cgp < %s -o - | FileCheck %s 2 ; Check that the 2nd and 3rd arguments of fmaXXX231 reg1, reg2, mem3 are not commuted. 3 ; <rdar://problem/16800495> 4 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" 5 target triple = "x86_64-apple-macosx" 6 7 ; CHECK-LABEL: test1: 8 ; %arg lives in xmm0 and it shouldn't be redefined until it is used in the FMA. 9 ; CHECK-NOT {{.*}}, %xmm0 10 ; %addr lives in rdi. 11 ; %addr2 lives in rsi. 12 ; CHECK: vmovss (%rsi), [[ADDR2:%xmm[0-9]+]] 13 ; The assembly syntax is in the reverse order. 14 ; CHECK: vfmadd231ss (%rdi), [[ADDR2]], %xmm0 15 define void @test1(float* %addr, float* %addr2, float %arg) { 16 entry: 17 br label %loop 18 19 loop: 20 %sum0 = phi float [ %fma, %loop ], [ %arg, %entry ] 21 %addrVal = load float* %addr, align 4 22 %addr2Val = load float* %addr2, align 4 23 %fmul = fmul float %addrVal, %addr2Val 24 %fma = fadd float %sum0, %fmul 25 br i1 true, label %exit, label %loop 26 27 exit: 28 store float %fma, float* %addr, align 4 29 ret void 30 } 31
