1 files changed, 72 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/i386/20000724-1.c b/gcc/testsuite/gcc.target/i386/20000724-1.c
new file mode 100644
index 000000000..b3be437b5
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/20000724-1.c
@@ -0,0 +1,72 @@
+/* { dg-do run { target *-*-linux* } } */
+/* { dg-require-effective-target ilp32 } */
+/* { dg-options "-O2 -fomit-frame-pointer" } */
+
+extern void abort (void);
+extern void exit (int);
+
+struct s {
+  struct { int a; } a;
+  int b;
+  struct { struct { int a; } a; struct t { struct t *a, *b; } b; } c;
+};
+
+int bar(int (*fn)(void *), void *arg, unsigned long flags)
+{
+  return 0;
+}
+
+int baz(void *x)
+{
+  return 0;
+}
+
+void do_check (struct s *) asm ("do_check") __attribute__((regparm(1)));
+
+void __attribute__((regparm(1))) do_check(struct s *x)
+{
+  if (x->a.a || x->b || x->c.a.a)
+    abort();
+  if (x->c.b.a != &x->c.b || x->c.b.b != &x->c.b)
+    abort();
+}
+
+#define NT "\n\t"
+
+asm ("\n"
+"___checkme:"
+NT	"pushl %eax; pushl %ebx; pushl %ecx; pushl %edx; pushl %esi; pushl %edi"
+
+NT	"pushl $0; pushl $0; pushl $0; pushl $0; pushl $0"
+NT	"pushl $0; pushl $0; pushl $0; pushl $0; pushl $0"
+
+NT	"movl %ecx, %eax"
+NT	"call do_check"
+
+NT	"popl %eax; popl %eax; popl %eax; popl %eax; popl %eax"
+NT	"popl %eax; popl %eax; popl %eax; popl %eax; popl %eax"
+
+NT	"popl %edi; popl %esi; popl %edx; popl %ecx; popl %ebx;	popl %eax"
+NT	"ret"
+);
+
+extern inline void do_asm(struct s * x)
+{
+  asm volatile("call ___checkme" : : "c" (x) : "memory");
+}
+
+int foo(void)
+{
+  struct s x = { { 0 }, 0, { { 0 }, { &x.c.b, &x.c.b } } };
+  bar(baz, &x, 1);
+  do_asm(&x);
+  bar(baz, &x, 1);
+  do_asm(&x);
+  return 0;
+}
+
+int main()
+{
+  foo();
+  exit(0);
+}