Test for (llvm-gcc) 70231.

llvm-svn: 70233

llvm/test/FrontendObjC/2009-04-27-bitfield-vs-ivar.m

@@ -0,0 +1,44 @@
+// RUN: %llvmgcc -S -x objective-c -m64 -fobjc-abi-version=2 %s -o %t
+// RUN: grep {OBJC_CLASS_RO_\\\$_I4} %t | grep {i32 0, i32 1, i32 2, i32 0}
+// RUN: grep {OBJC_CLASS_RO_\\\$_I2} %t | grep {i32 0, i32 1, i32 1, i32 0}
+// RUN: grep {OBJC_CLASS_RO_\\\$_I5} %t | grep {i32 0, i32 0, i32 0, i32 0}
+// XTARGETS: darwin
+
+// Test instance variable sizing when base class ends in bitfield
+@interface I3 {
+  unsigned int _iv2 :1;
+}
+@end
+
+@interface I4 : I3 {
+  char _iv4;
+}
+@end
+
+// Test case with no instance variables in derived class
+@interface I1 {
+  unsigned int _iv2 :1;
+}
+@end
+
+@interface I2 : I1 {
+}
+@end
+
+// Test case with no instance variables anywhere
+@interface I6 {
+}
+@end
+
+@interface I5 : I6 {
+}
+@end
+
+@implementation I4
+@end
+
+@implementation I2
+@end
+
+@implementation I5
+@end