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Fix a huge bug with handling non-pointer instructions

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5491 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2003-02-04 00:59:50 +00:00
parent 24d80079a8
commit 878e521b1e
1 changed files with 16 additions and 1 deletions
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17
lib/Analysis/DataStructure/Local.cpp
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@ -91,7 +91,7 @@ namespace {
void visitSetCondInst(SetCondInst &SCI) {} // SetEQ & friends are ignored void visitSetCondInst(SetCondInst &SCI) {} // SetEQ & friends are ignored
void visitFreeInst(FreeInst &FI); void visitFreeInst(FreeInst &FI);
void visitCastInst(CastInst &CI); void visitCastInst(CastInst &CI);
void visitInstruction(Instruction &I) {} void visitInstruction(Instruction &I);
private: private:
// Helper functions used to implement the visitation functions... // Helper functions used to implement the visitation functions...
@ -411,6 +411,21 @@ void GraphBuilder::visitCastInst(CastInst &CI) {
} }
// visitInstruction - For all other instruction types, if we have any arguments
// that are of pointer type, make them have unknown composition bits, and merge
// the nodes together.
void GraphBuilder::visitInstruction(Instruction &Inst) {
DSNodeHandle CurNode;
if (isPointerType(Inst.getType()))
CurNode = getValueDest(Inst);
for (User::op_iterator I = Inst.op_begin(), E = Inst.op_end(); I != E; ++I)
if (isPointerType((*I)->getType()))
CurNode.mergeWith(getValueDest(**I));
if (CurNode.getNode())
CurNode.getNode()->NodeType |= DSNode::UnknownNode;
}
//===----------------------------------------------------------------------===// //===----------------------------------------------------------------------===//