Mercurial > hg > CbC > CbC_gcc
annotate gcc/testsuite/gcc.dg/errno-1.c @ 111:04ced10e8804
gcc 7
| author | kono |
|---|---|
| date | Fri, 27 Oct 2017 22:46:09 +0900 |
| parents | |
| children |
| rev | line source |
|---|---|
| 111 | 1 /* { dg-do compile } */ |
| 2 /* { dg-options "-O2" } */ | |
| 3 | |
| 4 #include <errno.h> | |
| 5 #include <stdlib.h> | |
| 6 | |
| 7 void do_not_optimize_away (); | |
| 8 | |
| 9 int main() | |
| 10 { | |
| 11 void * volatile p; | |
| 12 errno = 0; | |
| 13 /* The malloc call below may cause a -Walloc-size-larger-than warning. */ | |
| 14 p = malloc (-1); | |
| 15 if (errno != 0) | |
| 16 do_not_optimize_away (); | |
| 17 return 0; | |
| 18 } | |
| 19 | |
| 20 /* { dg-final { scan-assembler "do_not_optimize_away" } } */ | |
| 21 /* { dg-prune-output "exceeds maximum object size" } */ |