| /* { dg-require-effective-target alloca } */ | |
| int __re_compile_fastmap(unsigned char *p) | |
| { | |
| unsigned char **stack; | |
| unsigned size; | |
| unsigned avail; | |
| stack = __builtin_alloca(5 * sizeof(unsigned char*)); | |
| if (stack == 0) | |
| return -2; | |
| size = 5; | |
| avail = 0; | |
| for (;;) { | |
| switch (*p++) { | |
| case 0: | |
| if (avail == size) | |
| return -2; | |
| stack[avail++] = p; | |
| } | |
| } | |
| return 0; | |
| } | |