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| author | Chris Lattner <sabre@nondot.org> | 2004-10-06 19:29:13 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2004-10-06 19:29:13 +0000 |
| commit | af88fcd4c9d86f7ffe292bb724b06bed400471bf (patch) | |
| tree | ab91edb21871da0030fb5ead05716fd43ac97a6b /llvm/lib/Analysis/DataStructure/Local.cpp | |
| parent | fe643e314fa06fc35d69a6b3fa4814920fb67ba1 (diff) | |
| download | bcm5719-llvm-af88fcd4c9d86f7ffe292bb724b06bed400471bf.tar.gz bcm5719-llvm-af88fcd4c9d86f7ffe292bb724b06bed400471bf.zip | |
Dont' let null nodes sneak past cast instructions
llvm-svn: 16779
Diffstat (limited to 'llvm/lib/Analysis/DataStructure/Local.cpp')
| -rw-r--r-- | llvm/lib/Analysis/DataStructure/Local.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/llvm/lib/Analysis/DataStructure/Local.cpp b/llvm/lib/Analysis/DataStructure/Local.cpp index 070d03738d9..b497c3849c9 100644 --- a/llvm/lib/Analysis/DataStructure/Local.cpp +++ b/llvm/lib/Analysis/DataStructure/Local.cpp @@ -950,8 +950,11 @@ void GraphBuilder::visitFreeInst(FreeInst &FI) { void GraphBuilder::visitCastInst(CastInst &CI) { if (isPointerType(CI.getType())) if (isPointerType(CI.getOperand(0)->getType())) { + DSNodeHandle Ptr = getValueDest(*CI.getOperand(0)); + if (Ptr.getNode() == 0) return; + // Cast one pointer to the other, just act like a copy instruction - setDestTo(CI, getValueDest(*CI.getOperand(0))); + setDestTo(CI, Ptr); } else { // Cast something (floating point, small integer) to a pointer. We need // to track the fact that the node points to SOMETHING, just something we |
