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Recommit, with fixes:

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Add some support for dealing with an object pointer on arguments.

    Part of rdar://9797999

which now supports adding the object pointer attribute to the
subprogram as it should.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163754 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eric Christopher
2012-09-12 23:36:19 +00:00
parent afc945b614
commit e521278f00
7 changed files with 140 additions and 2 deletions
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12
lib/CodeGen/AsmPrinter/DwarfDebug.cpp
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@ -330,6 +330,9 @@ DIE *DwarfDebug::updateSubprogramScopeDIE(CompileUnit *SPCU,
SPCU->addType(Arg, ATy);
if (ATy.isArtificial())
SPCU->addFlag(Arg, dwarf::DW_AT_artificial);
if (ATy.isObjectPointer())
SPCU->addDIEEntry(SPDie, dwarf::DW_AT_object_pointer, dwarf::DW_FORM_ref4,
Arg);
SPDie->addChild(Arg);
}
DIE *SPDeclDie = SPDie;
@ -496,14 +499,17 @@ DIE *DwarfDebug::constructScopeDIE(CompileUnit *TheCU, LexicalScope *Scope) {
return NULL;
SmallVector<DIE *, 8> Children;
DIE *ObjectPointer = NULL;
// Collect arguments for current function.
if (LScopes.isCurrentFunctionScope(Scope))
for (unsigned i = 0, N = CurrentFnArguments.size(); i < N; ++i)
if (DbgVariable *ArgDV = CurrentFnArguments[i])
if (DIE *Arg =
TheCU->constructVariableDIE(ArgDV, Scope->isAbstractScope()))
TheCU->constructVariableDIE(ArgDV, Scope->isAbstractScope())) {
Children.push_back(Arg);
if (ArgDV->isObjectPointer()) ObjectPointer = Arg;
}
// Collect lexical scope children first.
const SmallVector<DbgVariable *, 8> &Variables = ScopeVariables.lookup(Scope);
@ -544,6 +550,10 @@ DIE *DwarfDebug::constructScopeDIE(CompileUnit *TheCU, LexicalScope *Scope) {
E = Children.end(); I != E; ++I)
ScopeDIE->addChild(*I);
if (DS.isSubprogram() && ObjectPointer != NULL)
TheCU->addDIEEntry(ScopeDIE, dwarf::DW_AT_object_pointer,
dwarf::DW_FORM_ref4, ObjectPointer);
if (DS.isSubprogram())
TheCU->addPubTypes(DISubprogram(DS));