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

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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>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167524 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling 2012-11-07 04:42:18 +00:00
parent 796f2b02f7
commit a4c7693118
1 changed files with 37 additions and 36 deletions
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13
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!"); assert(SPDie && "Unable to find subprogram DIE!");
DISubprogram SP(SPNode); 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(); DISubprogram SPDecl = SP.getFunctionDeclaration();
if (!SPDecl.isSubprogram()) { if (!SPDecl.isSubprogram()) {
// There is not any need to generate specification DIE for a function // There is not any need to generate specification DIE for a function
@ -342,12 +349,6 @@ DIE *DwarfDebug::updateSubprogramScopeDIE(CompileUnit *SPCU,
SPCU->addDie(SPDie); 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, SPCU->addLabel(SPDie, dwarf::DW_AT_low_pc, dwarf::DW_FORM_addr,