Add support for DW_FORM_dataN and DW_FORM_udata to the DIE hashing
algorithm. Update the split dwarf hashing testcase accordingly - this
should be the last time that the hash of an empty file changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189427 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter/DIEHash.cpp b/lib/CodeGen/AsmPrinter/DIEHash.cpp
index f0ab38c..1322743 100644
--- a/lib/CodeGen/AsmPrinter/DIEHash.cpp
+++ b/lib/CodeGen/AsmPrinter/DIEHash.cpp
@@ -119,6 +119,9 @@
case dwarf::DW_AT_name:
COLLECT_ATTR(DW_AT_name);
break;
+ case dwarf::DW_AT_language:
+ COLLECT_ATTR(DW_AT_language);
+ break;
default:
break;
}
@@ -145,6 +148,13 @@
case dwarf::DW_FORM_strp:
addString(cast<DIEString>(Value)->getString());
break;
+ case dwarf::DW_FORM_data1:
+ case dwarf::DW_FORM_data2:
+ case dwarf::DW_FORM_data4:
+ case dwarf::DW_FORM_data8:
+ case dwarf::DW_FORM_udata:
+ addULEB128(cast<DIEInteger>(Value)->getValue());
+ break;
}
}
@@ -159,6 +169,7 @@
// FIXME: Add the rest.
ADD_ATTR(Attrs.DW_AT_name);
+ ADD_ATTR(Attrs.DW_AT_language);
}
// Add all of the attributes for \param Die to the hash.
diff --git a/lib/CodeGen/AsmPrinter/DIEHash.h b/lib/CodeGen/AsmPrinter/DIEHash.h
index f53529c..d83f78f 100644
--- a/lib/CodeGen/AsmPrinter/DIEHash.h
+++ b/lib/CodeGen/AsmPrinter/DIEHash.h
@@ -29,6 +29,7 @@
// Collection of all attributes used in hashing a particular DIE.
struct DIEAttrs {
AttrEntry DW_AT_name;
+ AttrEntry DW_AT_language;
};
public:
diff --git a/test/DebugInfo/X86/fission-hash.ll b/test/DebugInfo/X86/fission-hash.ll
index f0fe0d4..c4ba9ca 100644
--- a/test/DebugInfo/X86/fission-hash.ll
+++ b/test/DebugInfo/X86/fission-hash.ll
@@ -3,8 +3,8 @@
; The source is an empty file.
-; CHECK: DW_AT_GNU_dwo_id [DW_FORM_data8] (0xa188c11a9264c05d)
-; CHECK: DW_AT_GNU_dwo_id [DW_FORM_data8] (0xa188c11a9264c05d)
+; CHECK: DW_AT_GNU_dwo_id [DW_FORM_data8] (0xc357bdf055b6393d)
+; CHECK: DW_AT_GNU_dwo_id [DW_FORM_data8] (0xc357bdf055b6393d)
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!3}