Mercurial > hg > CbC > CbC_gcc

comparison gcc/testsuite/gcc.dg/Wvla-larger-than-1.c @ 111:04ced10e8804

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
parents
children
comparison
equal deleted inserted replaced
68:561a7518be6b 111:04ced10e8804
1 /* { dg-do compile } */
2 /* { dg-require-effective-target alloca } */
3 /* { dg-options "-Wvla-larger-than=100 -O2" } */
4
5 typedef __SIZE_TYPE__ size_t;
6
7 extern void useit (char *);
8
9 int num;
10
11 void test_vlas (size_t num)
12 {
13 char str2[num]; /* { dg-warning "unbounded use" } */
14 useit(str2);
15
16 num = 98;
17 for (int i=0; i < 1234; ++i) {
18 char str[num]; // OK, VLA in a loop, but it is a
19 // known size *AND* the compiler takes
20 // care of cleaning up between
21 // iterations with
22 // __builtin_stack_restore.
23 useit(str);
24 }
25 }