From patchwork Tue Jul 20 16:18:06 2010
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Subject: Testcase for the recent vt_expand_*loc max depth change
From: Jakub Jelinek <jakub@redhat.com>
X-Patchwork-Id: 59340
Message-Id: <20100720161806.GD19172@tyan-ft48-01.lab.bos.redhat.com>
To: Richard Guenther <rguenther@suse.de>
Cc: gcc-patches@gcc.gnu.org
Date: Tue, 20 Jul 2010 18:18:06 +0200

Hi!

Here is a testcase that failed before the var-tracking.c fix from today and
succeeds now (tested on x86_64-linux and i686-linux).  Ok for trunk?

2010-07-20  Jakub Jelinek  <jakub@redhat.com>

	* gcc.dg/guality/asm-1.c: New test.


	Jakub


--- gcc/testsuite/gcc.dg/guality/asm-1.c.jj	2010-07-20 16:42:34.000000000 +0200
+++ gcc/testsuite/gcc.dg/guality/asm-1.c	2010-07-20 16:49:09.000000000 +0200
@@ -0,0 +1,25 @@
+/* { dg-do run } */
+/* { dg-options "-g" } */
+
+struct A { int x; unsigned short y; char z[64]; };
+
+void __attribute__((noinline))
+foo (struct A *p, char *q)
+{
+  int f = &p->z[p->y] - q;
+  asm volatile ("nop");
+  asm volatile ("nop" : : "g" (f));		/* { dg-final { gdb-test 12 "f" "14" } } */
+  asm volatile ("" : : "g" (p), "g" (q));
+}
+
+int
+main ()
+{
+  struct A a;
+  __builtin_memset (&a, 0, sizeof a);
+  a.y = 26;
+  a.x = 12;
+  asm volatile ("" : : "r" (&a) : "memory");
+  foo (&a, &a.z[a.x]);
+  return 0;
+}