From: Devang Patel <dpatel@apple.com>
Date: Thu, 8 Nov 2007 00:32:12 +0000 (+0000)
Subject: Add assert for the case that is not handled.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=9b591f6f0d3e689bfb3a6cee6e64c9e95712f621;p=clang

Add assert for the case that is not handled.
struct { char a; short b:2; };


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43859 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/CodeGen/CodeGenTypes.cpp b/CodeGen/CodeGenTypes.cpp
index 30ef78f333..5f040bbb80 100644
--- a/CodeGen/CodeGenTypes.cpp
+++ b/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);