Discard metadata produced by LLVM 2.7. The value enumeration it used

is different from what the code now uses in a two ways: NamedMDNodes
were considered Values and included in the numbering, and the
function-local metadata counter wasn't reset between functions.

The later problem breaks lazy deserialization, so instead of trying
to emulate the old numbering, just drop the old metadata. The only
in-tree use case is debug info with LTO, where the QOI loss is
considered acceptable.

llvm-svn: 113557

1 files changed, 6 insertions, 0 deletions

diff --git a/llvm/tools/llvm-bcanalyzer/llvm-bcanalyzer.cpp b/llvm/tools/llvm-bcanalyzer/llvm-bcanalyzer.cpp
index 80a8d74988f..9c0d675793d 100644
--- a/llvm/tools/llvm-bcanalyzer/llvm-bcanalyzer.cpp
+++ b/llvm/tools/llvm-bcanalyzer/llvm-bcanalyzer.cpp
@@ -236,6 +236,8 @@ static const char *GetCodeName(unsigned CodeID, unsigned BlockID,
     case bitc::FUNC_CODE_INST_VSELECT:      return "INST_VSELECT";
     case bitc::FUNC_CODE_DEBUG_LOC:         return "DEBUG_LOC";
     case bitc::FUNC_CODE_DEBUG_LOC_AGAIN:   return "DEBUG_LOC_AGAIN";
+    case bitc::FUNC_CODE_INST_CALL2:        return "INST_CALL2";
+    case bitc::FUNC_CODE_DEBUG_LOC2:        return "DEBUG_LOC2";
     }
   case bitc::TYPE_SYMTAB_BLOCK_ID:
     switch (CodeID) {
@@ -263,6 +265,10 @@ static const char *GetCodeName(unsigned CodeID, unsigned BlockID,
     case bitc::METADATA_NAMED_NODE:  return "METADATA_NAMED_NODE";
     case bitc::METADATA_KIND:        return "METADATA_KIND";
     case bitc::METADATA_ATTACHMENT:  return "METADATA_ATTACHMENT";
+    case bitc::METADATA_NODE2:       return "METADATA_NODE2";
+    case bitc::METADATA_FN_NODE2:    return "METADATA_FN_NODE2";
+    case bitc::METADATA_NAMED_NODE2: return "METADATA_NAMED_NODE2";
+    case bitc::METADATA_ATTACHMENT2: return "METADATA_ATTACHMENT2";
     }
   }
 }