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; RUN: opt < %s -basicaa -slp-vectorizer -S |FileCheck %s
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
; Test if SLP can handle GEP expressions.
; The test perform the following action:
; x->first = y->first + 16
; x->second = y->second + 16
; CHECK-LABEL: foo1
; CHECK: <2 x i32*>
define void @foo1 ({ i32*, i32* }* noalias %x, { i32*, i32* }* noalias %y) {
%1 = getelementptr inbounds { i32*, i32* }* %y, i64 0, i32 0
%2 = load i32** %1, align 8
%3 = getelementptr inbounds i32* %2, i64 16
%4 = getelementptr inbounds { i32*, i32* }* %x, i64 0, i32 0
store i32* %3, i32** %4, align 8
%5 = getelementptr inbounds { i32*, i32* }* %y, i64 0, i32 1
%6 = load i32** %5, align 8
%7 = getelementptr inbounds i32* %6, i64 16
%8 = getelementptr inbounds { i32*, i32* }* %x, i64 0, i32 1
store i32* %7, i32** %8, align 8
ret void
}
; Test that we don't vectorize GEP expressions if indexes are not constants.
; We can't produce an efficient code in that case.
; CHECK-LABEL: foo2
; CHECK-NOT: <2 x i32*>
define void @foo2 ({ i32*, i32* }* noalias %x, { i32*, i32* }* noalias %y, i32 %i) {
%1 = getelementptr inbounds { i32*, i32* }* %y, i64 0, i32 0
%2 = load i32** %1, align 8
%3 = getelementptr inbounds i32* %2, i32 %i
%4 = getelementptr inbounds { i32*, i32* }* %x, i64 0, i32 0
store i32* %3, i32** %4, align 8
%5 = getelementptr inbounds { i32*, i32* }* %y, i64 0, i32 1
%6 = load i32** %5, align 8
%7 = getelementptr inbounds i32* %6, i32 %i
%8 = getelementptr inbounds { i32*, i32* }* %x, i64 0, i32 1
store i32* %7, i32** %8, align 8
ret void
}
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