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Simplify by creating parent first.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137056 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel 2011-08-08 18:22:10 +00:00
parent 66b0f515d5
commit c040529269
1 changed files with 14 additions and 19 deletions
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33
lib/CodeGen/AsmPrinter/DwarfDebug.cpp
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@ -149,12 +149,14 @@ public:
DbgScope(DbgScope *P, DIDescriptor D, const MDNode *I = 0)
: Parent(P), Desc(D), InlinedAtLocation(I), AbstractScope(false),
LastInsn(0), FirstInsn(0),
DFSIn(0), DFSOut(0), IndentLevel(0) {}
DFSIn(0), DFSOut(0), IndentLevel(0) {
if (Parent)
Parent->addScope(this);
}
virtual ~DbgScope();
// Accessors.
DbgScope *getParent() const { return Parent; }
void setParent(DbgScope *P) { Parent = P; }
DIDescriptor getDesc() const { return Desc; }
const MDNode *getInlinedAt() const { return InlinedAtLocation; }
const MDNode *getScopeNode() const { return Desc; }
@ -421,11 +423,7 @@ DbgScope *DwarfDebug::getOrCreateAbstractScope(const MDNode *N) {
DIDescriptor ParentDesc = DB.getContext();
Parent = getOrCreateAbstractScope(ParentDesc);
}
AScope = new DbgScope(Parent, DIDescriptor(N), NULL);
if (Parent)
Parent->addScope(AScope);
AScope->setAbstractScope();
AbstractScopes[N] = AScope;
if (DIDescriptor(N).isSubprogram())
@ -1590,17 +1588,16 @@ void DwarfDebug::endInstruction(const MachineInstr *MI) {
/// getOrCreateRegularScope - Create regular DbgScope.
DbgScope *DwarfDebug::getOrCreateRegularScope(MDNode *Scope) {
DbgScope *WScope = DbgScopeMap.lookup(Scope);
if (WScope)
if (WScope)
return WScope;
WScope = new DbgScope(NULL, DIDescriptor(Scope), NULL);
DbgScope *Parent = NULL;
if (DIDescriptor(Scope).isLexicalBlock())
Parent = getOrCreateDbgScope(DebugLoc::getFromDILexicalBlock(Scope));
WScope = new DbgScope(Parent, DIDescriptor(Scope), NULL);
DbgScopeMap.insert(std::make_pair(Scope, WScope));
if (DIDescriptor(Scope).isLexicalBlock()) {
DbgScope *Parent =
getOrCreateDbgScope(DebugLoc::getFromDILexicalBlock(Scope));
WScope->setParent(Parent);
Parent->addScope(WScope);
} else if (DIDescriptor(Scope).isSubprogram()
&& DISubprogram(Scope).describes(Asm->MF->getFunction()))
if (!Parent && DIDescriptor(Scope).isSubprogram()
&& DISubprogram(Scope).describes(Asm->MF->getFunction()))
CurrentFnDbgScope = WScope;
return WScope;
@ -1612,13 +1609,11 @@ DbgScope *DwarfDebug::getOrCreateInlinedScope(MDNode *Scope, MDNode *InlinedAt){
if (InlinedScope)
return InlinedScope;
InlinedScope = new DbgScope(NULL, DIDescriptor(Scope), InlinedAt);
DebugLoc InlinedLoc = DebugLoc::getFromDILocation(InlinedAt);
InlinedScope = new DbgScope(getOrCreateDbgScope(InlinedLoc),
DIDescriptor(Scope), InlinedAt);
InlinedDbgScopeMap[InlinedLoc] = InlinedScope;
DbgScopeMap[InlinedAt] = InlinedScope;
DbgScope *Parent = getOrCreateDbgScope(InlinedLoc);
InlinedScope->setParent(Parent);
Parent->addScope(InlinedScope);
return InlinedScope;
}