commit e9a05b7fd6ece68310707d10bc747a702a9af4a8
author Anders Carlsson <andersca@mac.com> Thu Jun 03 15:36:07 2010 +0000
committer Anders Carlsson <andersca@mac.com> Thu Jun 03 15:36:07 2010 +0000
tree 42c1ecf698feb7112821ee40400add0565919091
parent d6db976dd4c48b556862d093fb564b9cbc09aae3

Don't try to explicitly zero out bit-fields.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@105391 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/CGExprConstant.cpp

diff --git a/lib/CodeGen/CGExprConstant.cpp b/lib/CodeGen/CGExprConstant.cpp
index 21a2a60..a145a66 100644
--- a/lib/CodeGen/CGExprConstant.cpp
+++ b/lib/CodeGen/CGExprConstant.cpp
@@ -1117,6 +1117,11 @@
     for (RecordDecl::field_iterator I = RD->field_begin(),
          E = RD->field_end(); I != E; ++I) {
       const FieldDecl *FD = *I;
+      
+      // Ignore bit fields.
+      if (FD->isBitField())
+        continue;
+
       unsigned FieldNo = Layout.getLLVMFieldNo(FD);
       Elements[FieldNo] = EmitNullConstant(FD->getType());
     }

test/CodeGenCXX/pointers-to-data-members.cpp

diff --git a/test/CodeGenCXX/pointers-to-data-members.cpp b/test/CodeGenCXX/pointers-to-data-members.cpp
index e0e4e0c..e527c72 100644
--- a/test/CodeGenCXX/pointers-to-data-members.cpp
+++ b/test/CodeGenCXX/pointers-to-data-members.cpp
@@ -172,3 +172,14 @@
 D d;
 
 }
+
+namespace Test1 {
+
+// Don't crash when A contains a bit-field.
+struct A {
+  int A::* a;
+  int b : 10;
+};
+A a;
+
+}