| /* { dg-do compile } */ |
| /* { dg-options "-O2 -fdump-tree-pre-stats" } */ |
| #ifdef _WIN64 |
| #define LONG long long |
| #else |
| #define LONG long |
| #endif |
| |
| unsigned LONG outcnt; |
| extern void flush_outbuf(void); |
| |
| void |
| bi_windup(unsigned int *outbuf, unsigned int bi_buf) |
| { |
| unsigned LONG t1 = outcnt; |
| outbuf[t1] = bi_buf; |
| |
| unsigned LONG t2 = outcnt; |
| if (t2 == 16384) |
| flush_outbuf(); |
| |
| unsigned LONG t3 = outcnt; |
| outbuf[t3] = bi_buf; |
| } |
| /* We should eliminate one load of outcnt, which will in turn let us eliminate |
| one multiply of outcnt which will in turn let us eliminate |
| one add involving outcnt and outbuf. */ |
| /* { dg-final { scan-tree-dump-times "Eliminated: 3" 1 "pre" { target { ! { avr-*-* msp430-*-* } } } } } */ |
| /* { dg-final { scan-tree-dump-times "Eliminated: 4" 1 "pre" { target avr-*-* msp430-*-* } } } */ |
