Introduce a new PragmaPack attribute, and use it for #pragma pack. The PackedAttr now only represents __attribute__((packed)).

This is necessary because #pragma pack and __attribute__((packed)) have different semantics. No functionality change yet, but this lays the groundwork for fixing a record layout bug.

llvm-svn: 78483

1 files changed, 5 insertions, 2 deletions

diff --git a/clang/lib/Frontend/PCHWriter.cpp b/clang/lib/Frontend/PCHWriter.cpp
index 69247d3e859..0e570a61abb 100644
--- a/clang/lib/Frontend/PCHWriter.cpp
+++ b/clang/lib/Frontend/PCHWriter.cpp
@@ -1698,10 +1698,13 @@ void PCHWriter::WriteAttributeRecord(const Attr *Attr) {
     case Attr::Overloadable:
       break;
 
-    case Attr::Packed:
-      Record.push_back(cast<PackedAttr>(Attr)->getAlignment());
+    case Attr::PragmaPack:
+      Record.push_back(cast<PragmaPackAttr>(Attr)->getAlignment());
       break;
 
+    case Attr::Packed:
+      break;
+    
     case Attr::Pure:
       break;