From ec51171319f90ddec80fab09cfc08fcb5ce0171a Mon Sep 17 00:00:00 2001
From: Devang Patel <dpatel@apple.com>
Date: Thu, 8 Nov 2007 00:32:12 +0000
Subject: Add assert for the case that is not handled. struct { char a; short
 b:2; };

llvm-svn: 43859
---
 clang/CodeGen/CodeGenTypes.cpp | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'clang/CodeGen/CodeGenTypes.cpp')

diff --git a/clang/CodeGen/CodeGenTypes.cpp b/clang/CodeGen/CodeGenTypes.cpp
index 30ef78f333a..5f040bbb802 100644
--- a/clang/CodeGen/CodeGenTypes.cpp
+++ b/clang/CodeGen/CodeGenTypes.cpp
@@ -399,7 +399,12 @@ void RecordOrganizer::layoutStructFields(const ASTRecordLayout &RL) {
       assert (isBitField  && "Invalid BitField size expression");
       uint64_t BitFieldSize =  FieldSize.getZExtValue();
       if (ExtraBits == 0) {
+        const llvm::Type *PrevTy = LLVMFields.back();
         const llvm::Type *Ty = CGT.ConvertType(FD->getType());
+        assert (CGT.getTargetData().getTypeSizeInBits(PrevTy) >=
+                CGT.getTargetData().getTypeSizeInBits(Ty) 
+                && "FIXME Unable to handle bit field. Reuse last field");
+                
         // Calculate extra bits available in this bitfield.
         ExtraBits = CGT.getTargetData().getTypeSizeInBits(Ty) - BitFieldSize;
         addLLVMField(Ty, BitFieldSize, FD, 0, ExtraBits);
-- 
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