1 ; RUN: opt < %s -basicaa -slp-vectorizer -S |FileCheck %s 2 ; RUN: opt < %s -aa-pipeline=basic-aa -passes=slp-vectorizer -S |FileCheck %s 3 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" 4 target triple = "x86_64-unknown-unknown" 5 6 ; Test if SLP can handle GEP expressions. 7 ; The test perform the following action: 8 ; x->first = y->first + 16 9 ; x->second = y->second + 16 10 11 ; CHECK-LABEL: foo1 12 ; CHECK: <2 x i32*> 13 define void @foo1 ({ i32*, i32* }* noalias %x, { i32*, i32* }* noalias %y) { 14 %1 = getelementptr inbounds { i32*, i32* }, { i32*, i32* }* %y, i64 0, i32 0 15 %2 = load i32*, i32** %1, align 8 16 %3 = getelementptr inbounds i32, i32* %2, i64 16 17 %4 = getelementptr inbounds { i32*, i32* }, { i32*, i32* }* %x, i64 0, i32 0 18 store i32* %3, i32** %4, align 8 19 %5 = getelementptr inbounds { i32*, i32* }, { i32*, i32* }* %y, i64 0, i32 1 20 %6 = load i32*, i32** %5, align 8 21 %7 = getelementptr inbounds i32, i32* %6, i64 16 22 %8 = getelementptr inbounds { i32*, i32* }, { i32*, i32* }* %x, i64 0, i32 1 23 store i32* %7, i32** %8, align 8 24 ret void 25 } 26 27 ; Test that we don't vectorize GEP expressions if indexes are not constants. 28 ; We can't produce an efficient code in that case. 29 ; CHECK-LABEL: foo2 30 ; CHECK-NOT: <2 x i32*> 31 define void @foo2 ({ i32*, i32* }* noalias %x, { i32*, i32* }* noalias %y, i32 %i) { 32 %1 = getelementptr inbounds { i32*, i32* }, { i32*, i32* }* %y, i64 0, i32 0 33 %2 = load i32*, i32** %1, align 8 34 %3 = getelementptr inbounds i32, i32* %2, i32 %i 35 %4 = getelementptr inbounds { i32*, i32* }, { i32*, i32* }* %x, i64 0, i32 0 36 store i32* %3, i32** %4, align 8 37 %5 = getelementptr inbounds { i32*, i32* }, { i32*, i32* }* %y, i64 0, i32 1 38 %6 = load i32*, i32** %5, align 8 39 %7 = getelementptr inbounds i32, i32* %6, i32 %i 40 %8 = getelementptr inbounds { i32*, i32* }, { i32*, i32* }* %x, i64 0, i32 1 41 store i32* %7, i32** %8, align 8 42 ret void 43 } 44
