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Implement cast nodes correctly.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2964 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2002-07-18 15:54:42 +00:00
parent f7ccb70604
commit 055dc2c67e
2 changed files with 19 additions and 14 deletions
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4
lib/Analysis/DataStructure/DataStructure.cpp
View File

@ -248,9 +248,9 @@ void DSGraph::markIncompleteNodes() {
markIncompleteNode(Args[i]);
}
// Mark all of the nodes pointed to by global nodes as incomplete...
// Mark all of the nodes pointed to by global or cast nodes as incomplete...
for (unsigned i = 0, e = Nodes.size(); i != e; ++i)
if (Nodes[i]->NodeType & DSNode::GlobalNode) {
if (Nodes[i]->NodeType & (DSNode::GlobalNode | DSNode::CastNode)) {
DSNode *N = Nodes[i];
for (unsigned i = 0, e = N->getNumLinks(); i != e; ++i)
markIncompleteNode(N->getLink(i));

29
lib/Analysis/DataStructure/Local.cpp
View File

@ -5,6 +5,7 @@
//
//===----------------------------------------------------------------------===//
#include "llvm/Analysis/DataStructure.h"
#include "llvm/Function.h"
#include "llvm/iMemory.h"
#include "llvm/iTerminators.h"
@ -14,7 +15,6 @@
#include "llvm/GlobalVariable.h"
#include "llvm/DerivedTypes.h"
#include "llvm/Support/InstVisitor.h"
#include "llvm/Analysis/DataStructure.h" // FIXME:
using std::map;
using std::vector;
@ -66,17 +66,7 @@ namespace {
void visitCallInst(CallInst &CI);
void visitSetCondInst(SetCondInst &SCI) {} // SetEQ & friends are ignored
void visitFreeInst(FreeInst &FI) {} // Ignore free instructions
void visitInstruction(Instruction &I) {
#ifndef NDEBUG
bool bad = isa<PointerType>(I.getType());
for (Instruction::op_iterator i = I.op_begin(), E = I.op_end(); i!=E; ++i)
bad |= isa<PointerType>(i->get()->getType());
if (bad) {
std::cerr << "\n\n\nUNKNOWN PTR INSTRUCTION type: " << I << "\n\n\n";
assert(0 && "Cannot proceed");
}
#endif
}
void visitInstruction(Instruction &I); // Visit unsafe ptr instruction
private:
// Helper functions used to implement the visitation functions...
@ -307,3 +297,18 @@ void GraphBuilder::visitCallInst(CallInst &CI) {
if (isa<PointerType>(CI.getOperand(i)->getType()))
Args.push_back(getLink(getValueNode(*CI.getOperand(i)), 0));
}
// visitInstruction - All safe instructions have been processed above, this case
// is where unsafe ptr instructions land.
//
void GraphBuilder::visitInstruction(Instruction &I) {
// If the return type is a pointer, mark the pointed node as being a cast node
if (isa<PointerType>(I.getType()))
getLink(getValueNode(I), 0)->NodeType |= DSNode::CastNode;
// If any operands are pointers, mark the pointed nodes as being a cast node
for (Instruction::op_iterator i = I.op_begin(), E = I.op_end(); i!=E; ++i)
if (isa<PointerType>(i->get()->getType()))
getLink(getValueNode(*i->get()), 0)->NodeType |= DSNode::CastNode;
}