| /* Test LOOP recognition */ |
| |
| /* { dg-do run } */ |
| /* { dg-options "-O1 -mloop" } */ |
| |
| /* -O1 in the options is significant. Without it do-loop will not be |
| run. */ |
| |
| extern void abort (void); |
| |
| volatile unsigned int int_12345 = 12345; |
| volatile unsigned int int_0 = 0; |
| volatile unsigned int int_1 = 1; |
| |
| unsigned int |
| test_loop (unsigned int n) |
| { |
| unsigned int i; |
| volatile unsigned int s = 0; |
| |
| if (n >= 0x10000) return 0; |
| |
| for (i = 0; i < n; i++) |
| s++; |
| return s; |
| } |
| |
| |
| int |
| main (int argc, char** argv) |
| { |
| if (test_loop (int_0) != 0) |
| abort(); |
| if (test_loop (int_1) != 1) |
| abort(); |
| if (test_loop (int_12345) != 12345) |
| abort(); |
| |
| return 0; |
| } |
| |