diff options
Diffstat (limited to 'llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp | 32 |
1 files changed, 24 insertions, 8 deletions
diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp index 2425948ae9a..3c5868111d7 100644 --- a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp +++ b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp @@ -403,15 +403,21 @@ DIE *DwarfDebug::updateSubprogramScopeDIE(DwarfCompileUnit *SPCU, DIArray Args = SPTy.getTypeArray(); uint16_t SPTag = SPTy.getTag(); if (SPTag == dwarf::DW_TAG_subroutine_type) + // FIXME: Use DwarfUnit::constructSubprogramArguments() here. for (unsigned i = 1, N = Args.getNumElements(); i < N; ++i) { - DIE *Arg = - SPCU->createAndAddDIE(dwarf::DW_TAG_formal_parameter, *SPDie); DIType ATy(Args.getElement(i)); - 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, Arg); + if (ATy.isUnspecifiedParameter()) { + assert(i == N-1 && "ellipsis must be the last argument"); + SPCU->createAndAddDIE(dwarf::DW_TAG_unspecified_parameters, *SPDie); + } else { + DIE *Arg = + SPCU->createAndAddDIE(dwarf::DW_TAG_formal_parameter, *SPDie); + 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, Arg); + } } DIE *SPDeclDie = SPDie; SPDie = SPCU->createAndAddDIE(dwarf::DW_TAG_subprogram, @@ -582,7 +588,7 @@ DIE *DwarfDebug::createScopeChildrenDIE(DwarfCompileUnit *TheCU, DIE *ObjectPointer = NULL; // Collect arguments for current function. - if (LScopes.isCurrentFunctionScope(Scope)) + if (LScopes.isCurrentFunctionScope(Scope)) { for (unsigned i = 0, N = CurrentFnArguments.size(); i < N; ++i) if (DbgVariable *ArgDV = CurrentFnArguments[i]) if (DIE *Arg = @@ -592,6 +598,16 @@ DIE *DwarfDebug::createScopeChildrenDIE(DwarfCompileUnit *TheCU, ObjectPointer = Arg; } + // Create the unspecified parameter that marks a function as variadic. + DISubprogram SP(Scope->getScopeNode()); + assert(SP.Verify()); + DIArray FnArgs = SP.getType().getTypeArray(); + if (FnArgs.getElement(FnArgs.getNumElements()-1).isUnspecifiedParameter()) { + DIE *Ellipsis = new DIE(dwarf::DW_TAG_unspecified_parameters); + Children.push_back(Ellipsis); + } + } + // Collect lexical scope children first. const SmallVectorImpl<DbgVariable *> &Variables = ScopeVariables.lookup(Scope); |
