Have the bitcode writer and reader handle the new attribute references.

The bitcode writer emits a reference to the attribute group that the object at
the given index refers to. The bitcode reader is modified to read this in and
map it back to the attribute group.

llvm-svn: 174952

1 files changed, 8 insertions, 0 deletions

diff --git a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
index 476c68a6c0a..f34884391a7 100644
--- a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
+++ b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
@@ -494,6 +494,14 @@ bool BitcodeReader::ParseAttributeBlock() {
       Attrs.clear();
       break;
     }
+    case bitc::PARAMATTR_CODE_ENTRY: { // ENTRY: [attrgrp0, attrgrp1, ...]
+      for (unsigned i = 0, e = Record.size(); i != e; ++i)
+        Attrs.push_back(MAttributeGroups[Record[i]]);
+
+      MAttributes.push_back(AttributeSet::get(Context, Attrs));
+      Attrs.clear();
+      break;
+    }
     }
   }
 }