| /* { dg-do compile } */ |
| /* { dg-require-effective-target int32plus } */ |
| /* { dg-options "-fdump-tree-gimple" } */ |
| |
| /* Checks the simplification of: |
| 1 << (C - x) to (1 << C) >> x, where C = precision (type) - 1 |
| f1 is not simplified but f2, f3 and f4 are. */ |
| |
| __INT64_TYPE__ f1 (__INT64_TYPE__ i) |
| { |
| return (__INT64_TYPE__)1 << (31 - i); |
| } |
| |
| __INT64_TYPE__ f2 (__INT64_TYPE__ i) |
| { |
| return (__INT64_TYPE__)1 << (63 - i); |
| } |
| |
| __UINT64_TYPE__ f3 (__INT64_TYPE__ i) |
| { |
| return (__UINT64_TYPE__)1 << (63 - i); |
| } |
| |
| __INT32_TYPE__ f4 (__INT32_TYPE__ i) |
| { |
| return (__INT32_TYPE__)1 << (31 - i); |
| } |
| |
| /* { dg-final { scan-tree-dump-times "= 31 -" 1 "gimple" } } */ |
| /* { dg-final { scan-tree-dump-times "9223372036854775808 >>" 2 "gimple" } } */ |
| /* { dg-final { scan-tree-dump "2147483648 >>" "gimple" } } */ |
