gdb uses DW_AT_prototyped to identify K&R style in C based languages.
This fixes objc.dg/dwarf-prototypes.m scan-assembler DW_AT_prototyped from llvmgcc42 test suite.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65357 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter/DwarfWriter.cpp b/lib/CodeGen/AsmPrinter/DwarfWriter.cpp
index 6121d4b..26973b1 100644
--- a/lib/CodeGen/AsmPrinter/DwarfWriter.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfWriter.cpp
@@ -1942,6 +1942,11 @@
}
}
+ unsigned Lang = SP.getCompileUnit().getLanguage();
+ if (Lang == DW_LANG_C99 || Lang == DW_LANG_C89
+ || Lang == DW_LANG_ObjC)
+ AddUInt(SPDie, DW_AT_prototyped, DW_FORM_flag, 1);
+
if (!SP.isLocalToUnit())
AddUInt(SPDie, DW_AT_external, DW_FORM_flag, 1);
return SPDie;