maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

scalarrepl should not split the two elements of the vsiidx array: 

int func(vFloat v0, vFloat v1) {
        int ii;
        vSInt32 vsiidx[2];
        vsiidx[0] = _mm_cvttps_epi32(v0);
        vsiidx[1] = _mm_cvttps_epi32(v1);
        ii = ((int *) vsiidx)[4];
        return ii;
}

This fixes Transforms/ScalarRepl/2006-11-07-InvalidArrayPromote.ll

llvm-svn: 31524
This commit is contained in:
Chris Lattner 2006-11-07 22:42:47 +00:00
parent 2d7a5d9b5d
commit 4967f6ddea
1 changed files with 7 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
llvm/lib/Transforms/Scalar/ScalarReplAggregates.cpp
View File

@ -316,9 +316,13 @@ int SROA::isSafeUseOfAllocation(Instruction *User) {
//
// Scalar replacing *just* the outer index of the array is probably not
// going to be a win anyway, so just give up.
for (++I; I != E && isa<ArrayType>(*I); ++I) {
const ArrayType *SubArrayTy = cast<ArrayType>(*I);
uint64_t NumElements = SubArrayTy->getNumElements();
for (++I; I != E && (isa<ArrayType>(*I) || isa<PackedType>(*I)); ++I) {
uint64_t NumElements;
if (const ArrayType *SubArrayTy = dyn_cast<ArrayType>(*I))
NumElements = SubArrayTy->getNumElements();
else
NumElements = cast<PackedType>(*I)->getNumElements();
if (!isa<ConstantInt>(I.getOperand())) return 0;
if (cast<ConstantInt>(I.getOperand())->getZExtValue() >= NumElements)
return 0;