diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/fold-bitand-1.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/fold-bitand-1.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/fold-bitand-1.c b/gcc/testsuite/gcc.dg/fold-bitand-1.c new file mode 100644 index 000000000..f490b153b --- /dev/null +++ b/gcc/testsuite/gcc.dg/fold-bitand-1.c @@ -0,0 +1,33 @@ +/* { dg-do compile } */ +/* { dg-options "-w -fdump-tree-original" } */ + +char c1 __attribute__ ((aligned (1))); +char c2 __attribute__ ((aligned (2))); +char c4 __attribute__ ((aligned (4))); +char c8 __attribute__ ((aligned (8))); +unsigned f1(void) +{ + return 3 & (__SIZE_TYPE__)&c1; +} + +unsigned f2(void) +{ + return 3 & (__SIZE_TYPE__)&c2; +} + +unsigned f3(void) +{ + return 3 & (__SIZE_TYPE__)&c4; +} + +unsigned f4(void) +{ + return 3 & (__SIZE_TYPE__)&c8; +} + +/* { dg-final { scan-tree-dump-times "\&c1 \& 3" 1 "original" } } */ +/* { dg-final { scan-tree-dump-times "\&c2 \& 3" 1 "original" } } */ +/* { dg-final { scan-tree-dump-times "\&c4 \& 3" 0 "original" } } */ +/* { dg-final { scan-tree-dump-times "\&c8 \& 3" 0 "original" } } */ +/* { dg-final { scan-tree-dump-times "return 0" 2 "original" } } */ +/* { dg-final { cleanup-tree-dump "original" } } */ |