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1; RUN: opt < %s -basicaa -slp-vectorizer -S -mcpu=corei7-avx | FileCheck %s
2; RUN: opt < %s -basicaa -slp-vectorizer -slp-max-reg-size=128 -S -mcpu=corei7-avx | FileCheck %s --check-prefix=V128
3
4target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
5target triple = "x86_64-unknown-linux-gnu"
6
7; CHECK-LABEL: @foo(
8; CHECK: load <4 x double>
9; CHECK: fadd <4 x double>
10; CHECK: fadd <4 x double>
11; CHECK: store <4 x double>
12
13; V128-LABEL: @foo(
14; V128: load <2 x double>
15; V128: fadd <2 x double>
16; V128: fadd <2 x double>
17; V128: store <2 x double>
18; V128: load <2 x double>
19; V128: fadd <2 x double>
20; V128: fadd <2 x double>
21; V128: store <2 x double>
22
23define void @foo(double* %x) {
24  %1 = load double, double* %x, align 8
25  %2 = fadd double %1, %1
26  %3 = fadd double %2, %1
27  store double %3, double* %x, align 8
28  %4 = getelementptr inbounds double, double* %x, i64 1
29  %5 = load double, double* %4, align 8
30  %6 = fadd double %5, %5
31  %7 = fadd double %6, %5
32  store double %7, double* %4, align 8
33  %8 = getelementptr inbounds double, double* %x, i64 2
34  %9 = load double, double* %8, align 8
35  %10 = fadd double %9, %9
36  %11 = fadd double %10, %9
37  store double %11, double* %8, align 8
38  %12 = getelementptr inbounds double, double* %x, i64 3
39  %13 = load double, double* %12, align 8
40  %14 = fadd double %13, %13
41  %15 = fadd double %14, %13
42  store double %15, double* %12, align 8
43  ret void
44}
45
46