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Make sure we're not attempting to construct a subprogram DIE

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twice and just look up the value. Fix the one case where
we were trying to create a subprogram DIE and we should already
have had one. Reflow formatting in collectDeadVariables while fixing.

llvm-svn: 192749
This commit is contained in:
Eric Christopher 2013-10-15 23:31:38 +00:00
parent f506a0ede8
commit 1b0b6a1077
1 changed files with 18 additions and 16 deletions
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34
lib/CodeGen/AsmPrinter/DwarfDebug.cpp
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@ -826,12 +826,8 @@ CompileUnit *DwarfDebug::constructCompileUnit(const MDNode *N) {
}
// Construct subprogram DIE.
void DwarfDebug::constructSubprogramDIE(CompileUnit *TheCU,
const MDNode *N) {
CompileUnit *&CURef = SPMap[N];
if (CURef)
return;
CURef = TheCU;
void DwarfDebug::constructSubprogramDIE(CompileUnit *TheCU, const MDNode *N) {
assert(!SPMap[N] && "Trying to create a subprogram DIE twice!");
DISubprogram SP(N);
if (!SP.isDefinition())
@ -840,6 +836,7 @@ void DwarfDebug::constructSubprogramDIE(CompileUnit *TheCU,
return;
DIE *SubprogramDie = TheCU->getOrCreateSubprogramDIE(SP);
SPMap[N] = TheCU;
// Expose as a global name.
TheCU->addGlobalName(SP.getName(), SubprogramDie);
@ -974,28 +971,33 @@ void DwarfDebug::collectDeadVariables() {
DIArray Subprograms = TheCU.getSubprograms();
for (unsigned i = 0, e = Subprograms.getNumElements(); i != e; ++i) {
DISubprogram SP(Subprograms.getElement(i));
if (ProcessedSPNodes.count(SP) != 0) continue;
if (!SP.isSubprogram()) continue;
if (!SP.isDefinition()) continue;
if (ProcessedSPNodes.count(SP) != 0)
continue;
if (!SP.isSubprogram())
continue;
if (!SP.isDefinition())
continue;
DIArray Variables = SP.getVariables();
if (Variables.getNumElements() == 0) continue;
if (Variables.getNumElements() == 0)
continue;
LexicalScope *Scope =
new LexicalScope(NULL, DIDescriptor(SP), NULL, false);
new LexicalScope(NULL, DIDescriptor(SP), NULL, false);
DeadFnScopeMap[SP] = Scope;
// Construct subprogram DIE and add variables DIEs.
CompileUnit *SPCU = CUMap.lookup(TheCU);
assert(SPCU && "Unable to find Compile Unit!");
constructSubprogramDIE(SPCU, SP);
DIE *ScopeDIE = SPCU->getDIE(SP);
DIE *SPDIE = SPCU->getDIE(SP);
assert(SPDIE && "Subprogram wasn't created?");
for (unsigned vi = 0, ve = Variables.getNumElements(); vi != ve; ++vi) {
DIVariable DV(Variables.getElement(vi));
if (!DV.isVariable()) continue;
if (!DV.isVariable())
continue;
DbgVariable NewVar(DV, NULL, this);
if (DIE *VariableDIE =
SPCU->constructVariableDIE(&NewVar, Scope->isAbstractScope()))
ScopeDIE->addChild(VariableDIE);
SPCU->constructVariableDIE(&NewVar, Scope->isAbstractScope()))
SPDIE->addChild(VariableDIE);
}
}
}