Mercurial > hg > CbC > CbC_gcc
comparison gcc/testsuite/gcc.dg/pr80131-1.c @ 131:84e7813d76e9
gcc-8.2
| author | mir3636 |
|---|---|
| date | Thu, 25 Oct 2018 07:37:49 +0900 |
| parents | |
| children |
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| 111:04ced10e8804 | 131:84e7813d76e9 |
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| 1 /* { dg-do compile } */ | |
| 2 /* { dg-require-effective-target int32plus } */ | |
| 3 /* { dg-options "-fdump-tree-gimple" } */ | |
| 4 | |
| 5 /* Checks the simplification of: | |
| 6 1 << (C - x) to (1 << C) >> x, where C = precision (type) - 1 | |
| 7 f1 is not simplified but f2, f3 and f4 are. */ | |
| 8 | |
| 9 __INT64_TYPE__ f1 (__INT64_TYPE__ i) | |
| 10 { | |
| 11 return (__INT64_TYPE__)1 << (31 - i); | |
| 12 } | |
| 13 | |
| 14 __INT64_TYPE__ f2 (__INT64_TYPE__ i) | |
| 15 { | |
| 16 return (__INT64_TYPE__)1 << (63 - i); | |
| 17 } | |
| 18 | |
| 19 __UINT64_TYPE__ f3 (__INT64_TYPE__ i) | |
| 20 { | |
| 21 return (__UINT64_TYPE__)1 << (63 - i); | |
| 22 } | |
| 23 | |
| 24 __INT32_TYPE__ f4 (__INT32_TYPE__ i) | |
| 25 { | |
| 26 return (__INT32_TYPE__)1 << (31 - i); | |
| 27 } | |
| 28 | |
| 29 /* { dg-final { scan-tree-dump-times "= 31 -" 1 "gimple" } } */ | |
| 30 /* { dg-final { scan-tree-dump-times "9223372036854775808 >>" 2 "gimple" } } */ | |
| 31 /* { dg-final { scan-tree-dump "2147483648 >>" "gimple" } } */ |