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Use named MDNode, llvm.dbg.sp, to collect subprogram info. This will be used to emit local variable's debug info of deleted functions.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106989 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel
2010-06-28 05:53:08 +00:00
parent e9e3f20ffb
commit fd5fdc3863
1 changed files with 23 additions and 11 deletions
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34
lib/Analysis/DebugInfo.cpp
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@@ -971,7 +971,12 @@ DISubprogram DIFactory::CreateSubprogram(DIDescriptor Context,
ConstantInt::get(Type::getInt1Ty(VMContext), isOptimized), ConstantInt::get(Type::getInt1Ty(VMContext), isOptimized),
Fn Fn
}; };
return DISubprogram(MDNode::get(VMContext, &Elts[0], 17)); MDNode *Node = MDNode::get(VMContext, &Elts[0], 17);
// Create a named metadata so that we do not lose this mdnode.
NamedMDNode *NMD = M.getOrInsertNamedMetadata("llvm.dbg.sp");
NMD->addOperand(Node);
return DISubprogram(Node);
} }
/// CreateSubprogramDefinition - Create new subprogram descriptor for the /// CreateSubprogramDefinition - Create new subprogram descriptor for the
@@ -1000,7 +1005,12 @@ DISubprogram DIFactory::CreateSubprogramDefinition(DISubprogram &SPDeclaration)
DeclNode->getOperand(15), // isOptimized DeclNode->getOperand(15), // isOptimized
SPDeclaration.getFunction() SPDeclaration.getFunction()
}; };
return DISubprogram(MDNode::get(VMContext, &Elts[0], 16)); MDNode *Node =MDNode::get(VMContext, &Elts[0], 16);
// Create a named metadata so that we do not lose this mdnode.
NamedMDNode *NMD = M.getOrInsertNamedMetadata("llvm.dbg.sp");
NMD->addOperand(Node);
return DISubprogram(Node);
} }
/// CreateGlobalVariable - Create a new descriptor for the specified global. /// CreateGlobalVariable - Create a new descriptor for the specified global.
@@ -1230,17 +1240,19 @@ void DebugInfoFinder::processModule(Module &M) {
processLocation(DILocation(IA)); processLocation(DILocation(IA));
} }
NamedMDNode *NMD = M.getNamedMetadata("llvm.dbg.gv"); if (NamedMDNode *NMD = M.getNamedMetadata("llvm.dbg.gv")) {
if (!NMD) for (unsigned i = 0, e = NMD->getNumOperands(); i != e; ++i) {
return; DIGlobalVariable DIG(cast<MDNode>(NMD->getOperand(i)));
if (addGlobalVariable(DIG)) {
for (unsigned i = 0, e = NMD->getNumOperands(); i != e; ++i) { addCompileUnit(DIG.getCompileUnit());
DIGlobalVariable DIG(cast<MDNode>(NMD->getOperand(i))); processType(DIG.getType());
if (addGlobalVariable(DIG)) { }
addCompileUnit(DIG.getCompileUnit());
processType(DIG.getType());
} }
} }
if (NamedMDNode *NMD = M.getNamedMetadata("llvm.dbg.sp"))
for (unsigned i = 0, e = NMD->getNumOperands(); i != e; ++i)
processSubprogram(DISubprogram(NMD->getOperand(i)));
} }
/// processLocation - Process DILocation. /// processLocation - Process DILocation.