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Diffstat (limited to 'gcc/testsuite/gcc.dg/20031202-1.c')
-rw-r--r--gcc/testsuite/gcc.dg/20031202-1.c44
1 files changed, 44 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/20031202-1.c b/gcc/testsuite/gcc.dg/20031202-1.c
new file mode 100644
index 00000000000..8edfb3fb2be
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/20031202-1.c
@@ -0,0 +1,44 @@
+/* { dg-do run } */
+/* { dg-options "-O2" } */
+/* { dg-options "-O2 -mcpu=i686" { target i?86-*-* } } */
+
+extern void abort (void);
+extern void exit (int);
+
+struct A { char p[6]; } __attribute__((packed));
+struct B {
+ struct A a;
+ void * const b;
+ struct A const * const c;
+ struct A const *d;
+};
+
+char v;
+
+int __attribute__((noinline))
+foo (struct B *b)
+{
+ int i;
+ for (i = 0; i < 6; ++i)
+ if (b->a.p[i])
+ abort ();
+ if (b->b != &v || b->c || b->d)
+ abort ();
+ return 12;
+}
+
+int __attribute__((noinline))
+bar (void *x)
+{
+ __asm __volatile ("" : "=r" (x) : "0" (x));
+ struct B y = { .b = x, .c = (void *) 0 };
+ return foo (&y) + 1;
+}
+
+int
+main (void)
+{
+ if (bar (&v) != 13)
+ abort ();
+ exit (0);
+}