44 lines
1.9 KiB
LLVM
44 lines
1.9 KiB
LLVM
; RUN: opt < %s -basicaa -slp-vectorizer -S |FileCheck %s
|
|
; RUN: opt < %s -aa-pipeline=basic-aa -passes=slp-vectorizer -S |FileCheck %s
|
|
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
|
|
target triple = "x86_64-unknown-unknown"
|
|
|
|
; 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* }, { i32*, i32* }* %y, i64 0, i32 0
|
|
%2 = load i32*, i32** %1, align 8
|
|
%3 = getelementptr inbounds i32, i32* %2, i64 16
|
|
%4 = getelementptr inbounds { i32*, i32* }, { i32*, i32* }* %x, i64 0, i32 0
|
|
store i32* %3, i32** %4, align 8
|
|
%5 = getelementptr inbounds { i32*, i32* }, { i32*, i32* }* %y, i64 0, i32 1
|
|
%6 = load i32*, i32** %5, align 8
|
|
%7 = getelementptr inbounds i32, i32* %6, i64 16
|
|
%8 = getelementptr inbounds { i32*, i32* }, { 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* }, { i32*, i32* }* %y, i64 0, i32 0
|
|
%2 = load i32*, i32** %1, align 8
|
|
%3 = getelementptr inbounds i32, i32* %2, i32 %i
|
|
%4 = getelementptr inbounds { i32*, i32* }, { i32*, i32* }* %x, i64 0, i32 0
|
|
store i32* %3, i32** %4, align 8
|
|
%5 = getelementptr inbounds { i32*, i32* }, { i32*, i32* }* %y, i64 0, i32 1
|
|
%6 = load i32*, i32** %5, align 8
|
|
%7 = getelementptr inbounds i32, i32* %6, i32 %i
|
|
%8 = getelementptr inbounds { i32*, i32* }, { i32*, i32* }* %x, i64 0, i32 1
|
|
store i32* %7, i32** %8, align 8
|
|
ret void
|
|
}
|