pr37868

[Mike Stump]

Concerning:

2008-11-20  Richard Guenther  <rguent...@suse.de>

        PR tree-optimization/37868  
        * gcc.dg/torture/pr37868.c: New testcase.
        * gcc.c-torture/execute/pr38048-1.c: Likewise.
        * gcc.c-torture/execute/pr38048-2.c: Likewise.

So, is there any reason why we can't make the test case portable as in the 
below instead of skipping on all the targets that blow on misaligned data?

Ok?

diff --git a/gcc/testsuite/gcc.dg/torture/pr37868.c 
b/gcc/testsuite/gcc.dg/torture/pr37868.c
index 380b089..b7ff43f 100644
--- a/gcc/testsuite/gcc.dg/torture/pr37868.c
+++ b/gcc/testsuite/gcc.dg/torture/pr37868.c
@@ -24,15 +24,18 @@ struct X {
 
 int main (void)
 {
-  struct X x;
+  union {
+    struct X x;
+    unsigned int i;
+  } s;
   unsigned int bad_bits;
 
-  x.pad = -1;
-  x.a = -1;
-  x.b = -1;
-  x.c = -1;
+  s.x.pad = -1;
+  s.x.a = -1;
+  s.x.b = -1;
+  s.x.c = -1;
 
-  bad_bits = ((unsigned int)-1) ^ *(1+(unsigned int *) &x);
+  bad_bits = ((unsigned int)-1) ^ *(1+(unsigned int *) &s.x);
   if (bad_bits != 0)
     abort ();
   return 0;