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Do not emit specification DIE with DW_AT_specification attribute for member functions of a funcation local class. This trips gdb's partial scan of DIEs at load time. Fixes Radar 7833483.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100586 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel
2010-04-06 23:53:48 +00:00
parent e7b744fe64
commit 5f0940002a
2 changed files with 106 additions and 2 deletions
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19
lib/CodeGen/AsmPrinter/DwarfDebug.cpp
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@ -1332,6 +1332,19 @@ DbgScope *DwarfDebug::getOrCreateAbstractScope(MDNode *N) {
return AScope;
}
/// isSubprogramContext - Return true if Context is either a subprogram
/// or another context nested inside a subprogram.
bool isSubprogramContext(MDNode *Context) {
if (!Context)
return false;
DIDescriptor D(Context);
if (D.isSubprogram())
return true;
if (D.isType())
return isSubprogramContext(DIType(Context).getContext().getNode());
return false;
}
/// updateSubprogramScopeDIE - Find DIE for the given subprogram and
/// attach appropriate DW_AT_low_pc and DW_AT_high_pc attributes.
/// If there are global variables in this scope then create and insert
@ -1347,7 +1360,8 @@ DIE *DwarfDebug::updateSubprogramScopeDIE(MDNode *SPNode) {
// expect specification DIE in parent function. So avoid creating
// specification DIE for a function defined inside a function.
if (SP.isDefinition() && !SP.getContext().isCompileUnit() &&
!SP.getContext().isFile() && !SP.getContext().isSubprogram()) {
!SP.getContext().isFile() &&
!isSubprogramContext(SP.getContext().getNode())) {
addUInt(SPDie, dwarf::DW_AT_declaration, dwarf::DW_FORM_flag, 1);
// Add arguments.
@ -1766,7 +1780,8 @@ void DwarfDebug::constructGlobalVariableDIE(MDNode *N) {
// Do not create specification DIE if context is either compile unit
// or a subprogram.
if (DI_GV.isDefinition() && !GVContext.isCompileUnit() &&
!GVContext.isFile() && !GVContext.isSubprogram()) {
!GVContext.isFile() &&
!isSubprogramContext(GVContext.getNode())) {
// Create specification DIE.
DIE *VariableSpecDIE = new DIE(dwarf::DW_TAG_variable);
addDIEEntry(VariableSpecDIE, dwarf::DW_AT_specification,