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Fix PR1446 by not scalarrepl'ing giant structures.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37326 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2007-05-24 18:43:04 +00:00
parent d20d40299b
commit 7139406707
1 changed files with 5 additions and 1 deletions
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6
lib/Transforms/Scalar/ScalarReplAggregates.cpp
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@ -148,6 +148,8 @@ bool SROA::performScalarRepl(Function &F) {
if (AllocationInst *A = dyn_cast<AllocationInst>(I)) if (AllocationInst *A = dyn_cast<AllocationInst>(I))
WorkList.push_back(A); WorkList.push_back(A);
const TargetData &TD = getAnalysis<TargetData>();
// Process the worklist // Process the worklist
bool Changed = false; bool Changed = false;
while (!WorkList.empty()) { while (!WorkList.empty()) {
@ -177,7 +179,9 @@ bool SROA::performScalarRepl(Function &F) {
// value cannot be decomposed at all. // value cannot be decomposed at all.
if (!AI->isArrayAllocation() && if (!AI->isArrayAllocation() &&
(isa<StructType>(AI->getAllocatedType()) || (isa<StructType>(AI->getAllocatedType()) ||
isa<ArrayType>(AI->getAllocatedType()))) { isa<ArrayType>(AI->getAllocatedType())) &&
AI->getAllocatedType()->isSized() &&
TD.getTypeSize(AI->getAllocatedType()) < 128) {
// Check that all of the users of the allocation are capable of being // Check that all of the users of the allocation are capable of being
// transformed. // transformed.
switch (isSafeAllocaToScalarRepl(AI)) { switch (isSafeAllocaToScalarRepl(AI)) {