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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/gcc.dg/vect/vect-reduc-pattern-2c.c | |
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Diffstat (limited to 'gcc/testsuite/gcc.dg/vect/vect-reduc-pattern-2c.c')
-rw-r--r-- | gcc/testsuite/gcc.dg/vect/vect-reduc-pattern-2c.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/vect/vect-reduc-pattern-2c.c b/gcc/testsuite/gcc.dg/vect/vect-reduc-pattern-2c.c new file mode 100644 index 000000000..36f51496f --- /dev/null +++ b/gcc/testsuite/gcc.dg/vect/vect-reduc-pattern-2c.c @@ -0,0 +1,48 @@ +/* { dg-require-effective-target vect_int } */ + +#include <stdarg.h> +#include "tree-vect.h" + +#define N 16 +signed char data_ch[N] = + { 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28 }; +#define SUM 210 + +__attribute__ ((noinline)) int +foo () +{ + int i; + signed short shortsum = 0; + + /* widenning sum: sum chars into short. + The widening-summation pattern is currently not detected because of this + patch: + + 2005-12-26 Kazu Hirata <kazu@codesourcery.com> + + PR tree-optimization/25125 + */ + + for (i = 0; i < N; i++) + { + shortsum += data_ch[i]; + } + + /* check results: */ + if (shortsum != SUM) + abort (); + + return 0; +} + +int +main (void) +{ + check_vect (); + return foo (); +} + +/* { dg-final { scan-tree-dump-times "vect_recog_widen_sum_pattern: detected" 1 "vect" { xfail *-*-* } } } */ +/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { xfail *-*-* } } } */ +/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 0 "vect" { target { ! vect_widen_sum_qi_to_hi } } } } */ +/* { dg-final { cleanup-tree-dump "vect" } } */ |