obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 124 insertions, 0 deletions

diff --git a/gcc/testsuite/obj-c++.dg/bitfield-1.mm b/gcc/testsuite/obj-c++.dg/bitfield-1.mm
new file mode 100644
index 000000000..7b8e861ca
--- /dev/null
+++ b/gcc/testsuite/obj-c++.dg/bitfield-1.mm
@@ -0,0 +1,124 @@
+/* Check if ObjC class layout follows the ABI (informally)
+   set in the past.  ObjC structs must be laid out as if
+   all ivars, including those inherited from superclasses,
+   were defined at once (i.e., any padding introduced for
+   superclasses should be removed).  */
+/* Contributed by Ziemowit Laski <zlaski@apple.com>.  */
+/* { dg-do run } */
+/* { dg-options "-Wpadded -Wabi" } */
+
+/* Leave blank lines here to keep warnings on the same lines.  */
+
+#include "../objc-obj-c++-shared/Object1.h"
+#include <objc/objc.h>
+#include <stdlib.h>
+
+#define CHECK_IF(expr) if(!(expr)) abort()
+
+enum Enum { zero, one, two, three, four };
+
+@interface Base: Object {
+@public
+  unsigned a: 2;
+  int b: 3;
+  enum Enum c: 4;
+  unsigned d: 5;
+} /* { dg-warning "padding struct size to alignment boundary" } */
+@end
+
+struct Base_0 { /* { dg-warning "padding struct size to alignment boundary" } */
+  Class isa;
+  unsigned a: 2;
+  int b: 3;
+  enum Enum c: 4;
+  unsigned d: 5;
+};
+
+@interface Derived: Base {
+@public
+  signed e: 5;
+  unsigned f: 4;
+  enum Enum g: 3;
+}
+@end
+
+struct Derived_0 {
+  Class isa;
+  unsigned a: 2;
+  int b: 3;
+  enum Enum c: 4;
+  unsigned d: 5;
+  signed e: 5;
+  int f: 4;
+  enum Enum g: 3;
+};
+
+@interface Leaf: Derived {
+@public
+  signed h: 2;
+}
+@end
+
+struct Leaf_0 {
+  Class isa;
+  unsigned a: 2;
+  int b: 3;
+  enum Enum c: 4;
+  unsigned d: 5;
+  signed e: 5;
+  unsigned f: 4;
+  enum Enum g: 3;
+  signed h: 2;
+};
+  
+/* Note that the semicolon after @defs(...) is optional.  */
+
+typedef struct { @defs(Base) } Base_t; /* { dg-warning "padding struct size to alignment boundary" } */
+typedef struct { @defs(Derived); } Derived_t;
+typedef struct { @defs(Leaf); } Leaf_t;
+
+int main(void)
+{
+  struct Leaf_0 l_0;
+  Leaf *l = (Leaf *)&l_0;
+  Leaf_t *l_t = (Leaf_t *)&l_0;
+
+  CHECK_IF(sizeof(Base_t) == sizeof(Base));
+  CHECK_IF(sizeof(Derived_t) == sizeof(Derived));
+  CHECK_IF(sizeof(Leaf_t) == sizeof(Leaf));
+
+  CHECK_IF(sizeof(struct Base_0) == sizeof(Base));
+  CHECK_IF(sizeof(struct Derived_0) == sizeof(Derived));
+  CHECK_IF(sizeof(struct Leaf_0) == sizeof(Leaf));
+
+  l_0.isa = (Class)0;
+  l_0.a = 3;
+  l_0.b = 0;
+  l_0.c = three;
+  l_0.d = 31;
+  l_0.e = 0;
+  l_0.f = 15;
+  l_0.g = zero;
+  l_0.h = -2;
+
+  CHECK_IF(!l_t->isa);
+  CHECK_IF(l->a == 3 && l_t->a == 3);
+  CHECK_IF(!l->b && !l_t->b);
+  CHECK_IF(l->c == three && l_t->c == three);
+  CHECK_IF(l->d == 31 && l_t->d == 31);
+  CHECK_IF(!l->e && !l_t->e);
+  CHECK_IF(l->f == 15 && l_t->f == 15);
+  CHECK_IF(l->g == zero && l_t->g == zero);
+  CHECK_IF(l->h == -2 && l_t->h == -2);
+  
+  return 0;
+}
+
+/* { dg-prune-output "In file included from" }  Ignore this message.  */
+/* { dg-bogus "padding struct to align" "PR23610" { target *-*-* } 0 } */
+/* { dg-bogus "padding struct size" "PR23610" { xfail lp64 } 42 } */
+/* { dg-bogus "padding struct size" "PR23610" { xfail lp64 } 45 } */
+/* { dg-bogus "padding struct size" "PR23610" { xfail lp64 } 59 } */
+/* { dg-bogus "padding struct size" "PR23610" { xfail lp64 } 62 } */
+/* { dg-bogus "padding struct size" "PR23610" { xfail lp64 } 77 } */
+/* { dg-bogus "padding struct size" "PR23610" { xfail lp64 } 78 } */