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DebugInfoFinder::processModule was foiling my plot by

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materializing an MDNode for every debugloc.  don't do that! :)

"clang -g -S t.c" really no longer makes mdnodes for location 
tuples now.

llvm-svn: 100224
This commit is contained in:
Chris Lattner 2010-04-02 20:44:29 +00:00
parent 9da2b8a955
commit abbd9ae4d3
1 changed files with 20 additions and 5 deletions
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25
lib/Analysis/DebugInfo.cpp
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@ -1146,16 +1146,31 @@ Instruction *DIFactory::InsertDbgValueIntrinsic(Value *V, uint64_t Offset,
/// processModule - Process entire module and collect debug info. /// processModule - Process entire module and collect debug info.
void DebugInfoFinder::processModule(Module &M) { void DebugInfoFinder::processModule(Module &M) {
unsigned MDDbgKind = M.getMDKindID("dbg");
for (Module::iterator I = M.begin(), E = M.end(); I != E; ++I) for (Module::iterator I = M.begin(), E = M.end(); I != E; ++I)
for (Function::iterator FI = (*I).begin(), FE = (*I).end(); FI != FE; ++FI) for (Function::iterator FI = (*I).begin(), FE = (*I).end(); FI != FE; ++FI)
for (BasicBlock::iterator BI = (*FI).begin(), BE = (*FI).end(); BI != BE; for (BasicBlock::iterator BI = (*FI).begin(), BE = (*FI).end(); BI != BE;
++BI) { ++BI) {
if (DbgDeclareInst *DDI = dyn_cast<DbgDeclareInst>(BI)) if (DbgDeclareInst *DDI = dyn_cast<DbgDeclareInst>(BI)) {
processDeclare(DDI); processDeclare(DDI);
else if (MDNode *L = BI->getMetadata(MDDbgKind)) continue;
processLocation(DILocation(L)); }
DebugLoc Loc = BI->getDebugLoc();
if (Loc.isUnknown())
continue;
LLVMContext &Ctx = BI->getContext();
DIDescriptor Scope(Loc.getScope(Ctx));
if (Scope.isCompileUnit())
addCompileUnit(DICompileUnit(Scope.getNode()));
else if (Scope.isSubprogram())
processSubprogram(DISubprogram(Scope.getNode()));
else if (Scope.isLexicalBlock())
processLexicalBlock(DILexicalBlock(Scope.getNode()));
if (MDNode *IA = Loc.getInlinedAt(Ctx))
processLocation(DILocation(IA));
} }
NamedMDNode *NMD = M.getNamedMetadata("llvm.dbg.gv"); NamedMDNode *NMD = M.getNamedMetadata("llvm.dbg.gv");