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Cleanup: remove 2.1 to 2.3 updater
[people/pmueller/ipfire-2.x.git] / src / patches / gcc-pr28045.patch
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1Index: fold-const.c
2===================================================================
3*** gcc4.0.3/gcc/fold-const.c (revision 114755)
4--- gcc4.0.3/fold-const.c (working copy)
5*************** operand_equal_p (tree arg0, tree arg1, u
6*** 2497,2502 ****
7--- 2497,2507 ----
8 if (TYPE_UNSIGNED (TREE_TYPE (arg0)) != TYPE_UNSIGNED (TREE_TYPE (arg1)))
9 return 0;
10
11+ /* If both types don't have the same precision, then it is not safe
12+ to strip NOPs. */
13+ if (TYPE_PRECISION (TREE_TYPE (arg0)) != TYPE_PRECISION (TREE_TYPE (arg1)))
14+ return 0;
15+
16 STRIP_NOPS (arg0);
17 STRIP_NOPS (arg1);
18
19
20
21/* { dg-do run } */
22
23extern void abort(void);
24struct a
25{
26 unsigned int bits : 1;
27 signed long val : ((sizeof(long) * 8) - 1);
28};
29int Fnegate (struct a b)
30{
31 if ((-((long)b.val)) <= ((long) ((1UL << ((sizeof(long) * 8) - 2)) -1UL))
32 && (-((long)b.val)) >= (-(((long) ((1UL << ((sizeof(long) * 8) - 2)) -1UL))) - 1))
33 return 0 ;
34 abort ();
35}
36int main ()
37{
38 struct a b = {1, 1};
39 Fnegate (b);
40 return 0;
41}