Mercurial > hg > CbC > CbC_gcc
annotate gcc/testsuite/c-c++-common/rotate-9.c @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
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date | Thu, 25 Oct 2018 07:37:49 +0900 |
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children |
rev | line source |
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131 | 1 /* PR tree-optimization/86401 */ |
2 /* { dg-do compile } */ | |
3 /* { dg-options "-O2 -fno-ipa-icf -fdump-tree-optimized" } */ | |
4 /* { dg-final { scan-tree-dump-times "r\[<>]\[<>]" 2 "optimized" } } */ | |
5 | |
6 unsigned int | |
7 f1 (unsigned int x, unsigned int s) | |
8 { | |
9 unsigned int t = s % (__CHAR_BIT__ * __SIZEOF_INT__); | |
10 return (x << t) | (x >> (((__CHAR_BIT__ * __SIZEOF_INT__) - t) % (__CHAR_BIT__ * __SIZEOF_INT__))); | |
11 } | |
12 | |
13 unsigned int | |
14 f2 (unsigned int x, unsigned int s) | |
15 { | |
16 int n = __CHAR_BIT__ * __SIZEOF_INT__; | |
17 unsigned int t = s % n; | |
18 return (x << t) | (x >> ((n - t) % n)); | |
19 } |