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Fix PR15800. Do not try to vectorize vectors and structs. 

llvm-svn: 179960
This commit is contained in:
Nadav Rotem 2013-04-20 22:29:43 +00:00
parent 51fe3a48aa
commit 8aca44a623
2 changed files with 24 additions and 1 deletions
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11
llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
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@ -157,7 +157,8 @@ unsigned SLPVectorizer::collectStores(BasicBlock *BB, BoUpSLP &R) {
continue;
// Check that the pointer points to scalars.
if (SI->getValueOperand()->getType()->isAggregateType())
Type *Ty = SI->getValueOperand()->getType();
if (Ty->isAggregateType() || Ty->isVectorTy())
return 0;
// Find the base of the GEP.
@ -180,6 +181,14 @@ bool SLPVectorizer::tryToVectorizePair(Value *A, Value *B, BoUpSLP &R) {
bool SLPVectorizer::tryToVectorizeList(ArrayRef<Value *> VL, BoUpSLP &R) {
DEBUG(dbgs()<<"SLP: Vectorizing a list of length = " << VL.size() << ".\n");
// Check that all of the parts are scalar.
for (int i = 0, e = VL.size(); i < e; ++i) {
Type *Ty = VL[i]->getType();
if (Ty->isAggregateType() || Ty->isVectorTy())
return 0;
}
int Cost = R.getTreeCost(VL);
int ExtrCost = R.getScalarizationCost(VL);
DEBUG(dbgs()<<"SLP: Cost of pair:" << Cost <<

14
llvm/test/Transforms/SLPVectorizer/X86/vector.ll Normal file
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@ -0,0 +1,14 @@
; RUN: opt < %s -slp-vectorizer -S -mtriple=x86_64-apple-macosx10.8.0 -mcpu=corei7-avx | FileCheck %s
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.8.0"
; Make sure that we are not crashing or changing the code.
;CHECK: test
;CHECK: icmp
;CHECK: ret
define void @test(<4 x i32> %in, <4 x i32> %in2) {
%k = icmp eq <4 x i32> %in, %in2
ret void
}