[PATCH] Fix PR80416

[Richard Biener]

The following hopefully fixes asm constraints (works for ia64 now,
still works on x86_64).

Richard.

2017-04-13  Richard Biener  <rguent...@suse.de>

        PR testsuite/80416
        * g++.dg/torture/pr79671.C: Fix asm constraints.

Index: gcc/testsuite/g++.dg/torture/pr79671.C
===================================================================
--- gcc/testsuite/g++.dg/torture/pr79671.C      (revision 246899)
+++ gcc/testsuite/g++.dg/torture/pr79671.C      (working copy)
@@ -13,7 +13,7 @@ int __attribute__((noinline)) foo()
   new (&x) B (0);
   y = x;
   B *q = reinterpret_cast <B *>(&y);
-  asm volatile ("" : "=r" (q) : "r" (q));
+  asm volatile ("" : "=r" (q) : "0" (q));
   return q->i;
 }