[dwarfdump] Improve -diff option by hiding more data.

The -diff option makes it easy to diff dwarf by hiding addresses and
offsets. However not all of them were hidden, which should be fixed by
this patch.

Differential revision: https://reviews.llvm.org/D51593

llvm-svn: 341377

llvm/lib/DebugInfo/DWARF/DWARFDie.cpp

@@ -244,15 +244,17 @@ static void dumpAttribute(raw_ostream &OS, const DWARFDie &Die,
   else
     formValue.dump(OS, DumpOpts);
 
+  std::string Space = DumpOpts.ShowAddresses ? " " : "";
+
   // We have dumped the attribute raw value. For some attributes
   // having both the raw value and the pretty-printed value is
   // interesting. These attributes are handled below.
   if (Attr == DW_AT_specification || Attr == DW_AT_abstract_origin) {
     if (const char *Name = Die.getAttributeValueAsReferencedDie(Attr).getName(
             DINameKind::LinkageName))
-      OS << " \"" << Name << '\"';
+      OS << Space << "\"" << Name << '\"';
   } else if (Attr == DW_AT_type) {
-    OS << " \"";
+    OS << Space << "\"";
     dumpTypeName(OS, Die);
     OS << '"';
   } else if (Attr == DW_AT_APPLE_property_attribute) {

llvm/lib/DebugInfo/DWARF/DWARFFormValue.cpp

@@ -387,16 +387,16 @@ void DWARFFormValue::dump(raw_ostream &OS, DIDumpOptions DumpOpts) const {
       switch (Form) {
       case DW_FORM_exprloc:
       case DW_FORM_block:
-        OS << format("<0x%" PRIx64 "> ", UValue);
+        AddrOS << format("<0x%" PRIx64 "> ", UValue);
         break;
       case DW_FORM_block1:
-        OS << format("<0x%2.2x> ", (uint8_t)UValue);
+        AddrOS << format("<0x%2.2x> ", (uint8_t)UValue);
         break;
       case DW_FORM_block2:
-        OS << format("<0x%4.4x> ", (uint16_t)UValue);
+        AddrOS << format("<0x%4.4x> ", (uint16_t)UValue);
         break;
       case DW_FORM_block4:
-        OS << format("<0x%8.8x> ", (uint32_t)UValue);
+        AddrOS << format("<0x%8.8x> ", (uint32_t)UValue);
         break;
       default:
         break;
@@ -407,7 +407,7 @@ void DWARFFormValue::dump(raw_ostream &OS, DIDumpOptions DumpOpts) const {
         // UValue contains size of block
         const uint8_t *EndDataPtr = DataPtr + UValue;
         while (DataPtr < EndDataPtr) {
-          OS << format("%2.2x ", *DataPtr);
+          AddrOS << format("%2.2x ", *DataPtr);
           ++DataPtr;
         }
       } else
@@ -501,8 +501,9 @@ void DWARFFormValue::dump(raw_ostream &OS, DIDumpOptions DumpOpts) const {
   if (CURelativeOffset) {
     if (DumpOpts.Verbose)
       OS << " => {";
-    WithColor(OS, HighlightColor::Address).get()
-        << format("0x%8.8" PRIx64, UValue + (U ? U->getOffset() : 0));
+    if (DumpOpts.ShowAddresses)
+      WithColor(OS, HighlightColor::Address).get()
+          << format("0x%8.8" PRIx64, UValue + (U ? U->getOffset() : 0));
     if (DumpOpts.Verbose)
       OS << "}";
   }