diff options
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/vect/vect-reduc-pattern-2b-big-array.c')
-rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/vect/vect-reduc-pattern-2b-big-array.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/vect/vect-reduc-pattern-2b-big-array.c b/gcc-4.9/gcc/testsuite/gcc.dg/vect/vect-reduc-pattern-2b-big-array.c new file mode 100644 index 000000000..fa0100b9a --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/vect/vect-reduc-pattern-2b-big-array.c @@ -0,0 +1,50 @@ +/* { dg-require-effective-target vect_int } */ + +#include <stdarg.h> +#include "tree-vect.h" + +#define N 128 +signed char data_ch[N]; + +volatile int y = 0; + +__attribute__ ((noinline)) int +foo () +{ + int i; + signed int intsum = 0; + signed int check_intsum = 0; + + for (i = 0; i < N; i++) + { + data_ch[i] = i*2; + check_intsum += data_ch[i]; + /* Avoid vectorization. */ + if (y) + abort (); + } + + /* widenning sum: sum chars into int. */ + for (i = 0; i < N; i++) + { + intsum += data_ch[i]; + } + + /* check results: */ + if (intsum != check_intsum) + abort (); + + return 0; +} + +int +main (void) +{ + check_vect (); + return foo (); +} + +/* { dg-final { scan-tree-dump-times "vect_recog_widen_sum_pattern: detected" 1 "vect" } } */ +/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target { vect_widen_sum_qi_to_si && vect_unpack } } } } */ +/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 0 "vect" { target { { ! vect_widen_sum_qi_to_si } && { ! vect_unpack } } } } } */ +/* { dg-final { cleanup-tree-dump "vect" } } */ |