Re-apply r174919 - smarter copy/move assignment/construction, with fixes for
bitfield related issues.

The original commit broke Takumi's builder. The bug was caused by bitfield sizes
being determined by their underlying type, rather than the field info. A similar
issue with bitfield alignments showed up on closer testing. Both have been fixed
in this patch.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175389 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGenCXX/implicit-copy-constructor.cpp b/test/CodeGenCXX/implicit-copy-constructor.cpp
index 8a3a422..24e84d5 100644
--- a/test/CodeGenCXX/implicit-copy-constructor.cpp
+++ b/test/CodeGenCXX/implicit-copy-constructor.cpp
@@ -46,7 +46,7 @@
 // CHECK: call void @_ZN1AD1Ev
 // CHECK: call void @_ZN1AC2ERS_
 // CHECK: call void @_ZN1BC2ERS_
-// CHECK: {{call void @llvm.memcpy.p0i8.p0i8.i64.*i64 24}}
+// CHECK: {{call void @llvm.memcpy.p0i8.p0i8.i64.*i64 28}}
 // CHECK: call void @_ZN1BC1ERS_
 // CHECK: br
 // CHECK: {{icmp ult.*, 2}}
@@ -54,8 +54,7 @@
 // CHECK: call void @_ZN1AC1Ev
 // CHECK: call void @_ZN1CC1ERS_1A
 // CHECK: call void @_ZN1AD1Ev
-// CHECK: {{call void @llvm.memcpy.p0i8.p0i8.i64.*i64 288}}
-// CHECK: {{call void @llvm.memcpy.p0i8.p0i8.i64.*i64 12}}
+// CHECK: {{call void @llvm.memcpy.p0i8.p0i8.i64.*i64 300}}
 // CHECK: ret void