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Allocating too large an array for ReachibilityMatrix.

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llvm-svn: 29367
This commit is contained in:
Evan Cheng 2006-07-27 22:35:40 +00:00
parent 17ccdcc415
commit 24b41a766b
1 changed files with 5 additions and 2 deletions
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7
lib/Target/X86/X86ISelDAGToDAG.cpp
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@ -281,8 +281,11 @@ void X86DAGToDAGISel::DetermineTopologicalOrdering() {
void X86DAGToDAGISel::DeterminReachibility(SDNode *f, SDNode *t) {
if (!ReachibilityMatrix) {
DetermineTopologicalOrdering();
ReachibilityMatrix = new unsigned char[DAGSize * DAGSize];
memset(ReachibilityMatrix, 0, DAGSize * DAGSize * sizeof(unsigned char));
unsigned RMSize = DAGSize * DAGSize / 8;
if ((DAGSize * DAGSize) % 8)
RMSize++;
ReachibilityMatrix = new unsigned char[RMSize];
memset(ReachibilityMatrix, 0, RMSize);
}
int Idf = f->getNodeId();