Mercurial > hg > CbC > CbC_gcc

annotate gcc/testsuite/gcc.dg/Wrestrict-3.c @ 131:84e7813d76e9

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
parents
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
131
84e7813d76e9 gcc-8.2
mir3636
parents:
diff changeset
1 /* Test to verify that the call below with the out-of-bounds offset
84e7813d76e9 gcc-8.2
mir3636
parents:
diff changeset
2 doesn't trigger an internal assertion and is diagnosed.
84e7813d76e9 gcc-8.2
mir3636
parents:
diff changeset
3 { dg-do compile }
84e7813d76e9 gcc-8.2
mir3636
parents:
diff changeset
4 { dg-options "-O2 -Wrestrict" } */
84e7813d76e9 gcc-8.2
mir3636
parents:
diff changeset
5
84e7813d76e9 gcc-8.2
mir3636
parents:
diff changeset
6 #define DIFF_MAX __PTRDIFF_MAX__
84e7813d76e9 gcc-8.2
mir3636
parents:
diff changeset
7
84e7813d76e9 gcc-8.2
mir3636
parents:
diff changeset
8 void test_no_ice (int *d, __PTRDIFF_TYPE__ i, __SIZE_TYPE__ n)
84e7813d76e9 gcc-8.2
mir3636
parents:
diff changeset
9 {
84e7813d76e9 gcc-8.2
mir3636
parents:
diff changeset
10 if (i < DIFF_MAX / sizeof *d - 1 || DIFF_MAX / sizeof *d + 2 < i)
84e7813d76e9 gcc-8.2
mir3636
parents:
diff changeset
11 i = DIFF_MAX / sizeof *d - 1;
84e7813d76e9 gcc-8.2
mir3636
parents:
diff changeset
12
84e7813d76e9 gcc-8.2
mir3636
parents:
diff changeset
13 if (n < DIFF_MAX)
84e7813d76e9 gcc-8.2
mir3636
parents:
diff changeset
14 n = DIFF_MAX / sizeof *d;
84e7813d76e9 gcc-8.2
mir3636
parents:
diff changeset
15
84e7813d76e9 gcc-8.2
mir3636
parents:
diff changeset
16 __builtin_strncpy ((char*)(d + i), (char*)d, n); /* { dg-warning "\\\[-Wrestrict]" } */
84e7813d76e9 gcc-8.2
mir3636
parents:
diff changeset
17 }