| /* PR debug/49580 */ |
| /* { dg-do compile } */ |
| /* { dg-options "-O2 -ftree-parallelize-loops=4 -fdump-tree-parloops2-details" } */ |
| |
| #include <stdarg.h> |
| #include <stdlib.h> |
| |
| #define N 1600 |
| |
| unsigned int ub[N]; |
| unsigned char reg_has_output_reload[N]; |
| unsigned int uc[N]; |
| |
| __attribute__ ((noinline)) |
| void main2 (unsigned int regno, unsigned int n_reloads) |
| { |
| unsigned int nr=0; |
| |
| if (regno> ub[regno]) |
| nr=regno; |
| else |
| nr=ub[nr]; |
| |
| while (nr-- > 0) |
| if (n_reloads == 0 || reg_has_output_reload[regno + nr] == 0) |
| ub[regno + nr] = 0; |
| } |
| |
| int main (void) |
| { |
| main2 (799, 0); |
| return 0; |
| } |
| |
| |
| /* { dg-final { scan-tree-dump-times "SUCCESS: may be parallelized" 1 "parloops2" } } */ |
| |
