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llvmc: Properly handle (error) in edge properties.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111827 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Mikhail Glushenkov
2010-08-23 19:24:08 +00:00
parent c712edc785
commit 7555f0a2bc
4 changed files with 21 additions and 20 deletions
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15
lib/CompilerDriver/CompilationGraph.cpp
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@ -46,19 +46,24 @@ namespace llvmc {
namespace {
/// ChooseEdge - Return the edge with the maximum weight.
/// ChooseEdge - Return the edge with the maximum weight. Returns 0 on error.
template <class C>
const Edge* ChooseEdge(const C& EdgesContainer,
const InputLanguagesSet& InLangs,
const std::string& NodeName = "root") {
const Edge* MaxEdge = 0;
unsigned MaxWeight = 0;
int MaxWeight = 0;
bool SingleMax = true;
for (typename C::const_iterator B = EdgesContainer.begin(),
E = EdgesContainer.end(); B != E; ++B) {
const Edge* e = B->getPtr();
unsigned EW = e->Weight(InLangs);
int EW = e->Weight(InLangs);
if (EW < 0) {
// (error) invocation in TableGen -> we don't need to print an error
// message.
return 0;
}
if (EW > MaxWeight) {
MaxEdge = e;
MaxWeight = EW;
@ -474,7 +479,7 @@ int CompilationGraph::CheckMultipleDefaultEdges() const {
for (const_nodes_iterator B = this->NodesMap.begin(),
E = this->NodesMap.end(); B != E; ++B) {
const Node& N = B->second;
unsigned MaxWeight = 0;
int MaxWeight = 0;
// Ignore the root node.
if (!N.ToolPtr)
@ -482,7 +487,7 @@ int CompilationGraph::CheckMultipleDefaultEdges() const {
for (Node::const_iterator EB = N.EdgesBegin(), EE = N.EdgesEnd();
EB != EE; ++EB) {
unsigned EdgeWeight = (*EB)->Weight(Dummy);
int EdgeWeight = (*EB)->Weight(Dummy);
if (EdgeWeight > MaxWeight) {
MaxWeight = EdgeWeight;
}