1 ; RUN: opt < %s -basicaa -slp-vectorizer -S |FileCheck %s
2 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
4 ; Test if SLP can handle GEP expressions.
5 ; The test perform the following action:
6 ; x->first = y->first + 16
7 ; x->second = y->second + 16
11 define void @foo1 ({ i32*, i32* }* noalias %x, { i32*, i32* }* noalias %y) {
12 %1 = getelementptr inbounds { i32*, i32* }, { i32*, i32* }* %y, i64 0, i32 0
13 %2 = load i32** %1, align 8
14 %3 = getelementptr inbounds i32, i32* %2, i64 16
15 %4 = getelementptr inbounds { i32*, i32* }, { i32*, i32* }* %x, i64 0, i32 0
16 store i32* %3, i32** %4, align 8
17 %5 = getelementptr inbounds { i32*, i32* }, { i32*, i32* }* %y, i64 0, i32 1
18 %6 = load i32** %5, align 8
19 %7 = getelementptr inbounds i32, i32* %6, i64 16
20 %8 = getelementptr inbounds { i32*, i32* }, { i32*, i32* }* %x, i64 0, i32 1
21 store i32* %7, i32** %8, align 8
25 ; Test that we don't vectorize GEP expressions if indexes are not constants.
26 ; We can't produce an efficient code in that case.
28 ; CHECK-NOT: <2 x i32*>
29 define void @foo2 ({ i32*, i32* }* noalias %x, { i32*, i32* }* noalias %y, i32 %i) {
30 %1 = getelementptr inbounds { i32*, i32* }, { i32*, i32* }* %y, i64 0, i32 0
31 %2 = load i32** %1, align 8
32 %3 = getelementptr inbounds i32, i32* %2, i32 %i
33 %4 = getelementptr inbounds { i32*, i32* }, { i32*, i32* }* %x, i64 0, i32 0
34 store i32* %3, i32** %4, align 8
35 %5 = getelementptr inbounds { i32*, i32* }, { i32*, i32* }* %y, i64 0, i32 1
36 %6 = load i32** %5, align 8
37 %7 = getelementptr inbounds i32, i32* %6, i32 %i
38 %8 = getelementptr inbounds { i32*, i32* }, { i32*, i32* }* %x, i64 0, i32 1
39 store i32* %7, i32** %8, align 8