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When we're updating the subprogram scope DIE, we want to determine if we're 

updating an abstract DIE or not. If we are, then we use that. Its children will
be added on later, as well as the object pointer attribute. Otherwise, this
function may be called with a concrete DIE twice and adding the children and
object pointer attribute to it twice.
<rdar://problem/12401423&12600340>

llvm-svn: 167524
This commit is contained in:
Bill Wendling 2012-11-07 04:42:18 +00:00
parent a1046ece32
commit d9bb9b611b
1 changed files with 37 additions and 36 deletions
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13
llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
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@ -307,6 +307,13 @@ DIE *DwarfDebug::updateSubprogramScopeDIE(CompileUnit *SPCU,
assert(SPDie && "Unable to find subprogram DIE!");
DISubprogram SP(SPNode);
// Pick up abstract subprogram DIE.
if (DIE *AbsSPDIE = AbstractSPDies.lookup(SPNode)) {
SPDie = new DIE(dwarf::DW_TAG_subprogram);
SPCU->addDIEEntry(SPDie, dwarf::DW_AT_abstract_origin,
dwarf::DW_FORM_ref4, AbsSPDIE);
SPCU->addDie(SPDie);
} else {
DISubprogram SPDecl = SP.getFunctionDeclaration();
if (!SPDecl.isSubprogram()) {
// There is not any need to generate specification DIE for a function
@ -342,12 +349,6 @@ DIE *DwarfDebug::updateSubprogramScopeDIE(CompileUnit *SPCU,
SPCU->addDie(SPDie);
}
}
// Pick up abstract subprogram DIE.
if (DIE *AbsSPDIE = AbstractSPDies.lookup(SPNode)) {
SPDie = new DIE(dwarf::DW_TAG_subprogram);
SPCU->addDIEEntry(SPDie, dwarf::DW_AT_abstract_origin,
dwarf::DW_FORM_ref4, AbsSPDIE);
SPCU->addDie(SPDie);
}
SPCU->addLabel(SPDie, dwarf::DW_AT_low_pc, dwarf::DW_FORM_addr,