maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

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

llvm-svn: 106989
This commit is contained in:
Devang Patel 2010-06-28 05:53:08 +00:00
parent 7ea5fc0794
commit f7869a4b81
1 changed files with 23 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
llvm/lib/Analysis/DebugInfo.cpp
View File

@ -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.
@ -1230,10 +1240,7 @@ 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)
return;
for (unsigned i = 0, e = NMD->getNumOperands(); i != e; ++i) { for (unsigned i = 0, e = NMD->getNumOperands(); i != e; ++i) {
DIGlobalVariable DIG(cast<MDNode>(NMD->getOperand(i))); DIGlobalVariable DIG(cast<MDNode>(NMD->getOperand(i)));
if (addGlobalVariable(DIG)) { if (addGlobalVariable(DIG)) {
@ -1243,6 +1250,11 @@ void DebugInfoFinder::processModule(Module &M) {
} }
} }
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.
void DebugInfoFinder::processLocation(DILocation Loc) { void DebugInfoFinder::processLocation(DILocation Loc) {
if (!Loc.Verify()) return; if (!Loc.Verify()) return;