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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-dot-s8c.c | |
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Diffstat (limited to 'gcc/testsuite/gcc.dg/vect/vect-reduc-dot-s8c.c')
-rw-r--r-- | gcc/testsuite/gcc.dg/vect/vect-reduc-dot-s8c.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/vect/vect-reduc-dot-s8c.c b/gcc/testsuite/gcc.dg/vect/vect-reduc-dot-s8c.c new file mode 100644 index 000000000..59b174e3f --- /dev/null +++ b/gcc/testsuite/gcc.dg/vect/vect-reduc-dot-s8c.c @@ -0,0 +1,46 @@ +/* { dg-require-effective-target vect_int } */ + +#include <stdarg.h> +#include "tree-vect.h" + +#define N 64 + +#define DOT3 43680 + +signed char X[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))); +signed char Y[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))); + +/* char->int->int dot product. + Not detected as a dot-product pattern. */ +__attribute__ ((noinline)) int +foo3(int len) { + int i; + int result = 0; + + for (i=0; i<len; i++) { + result += (X[i] * Y[i]); + } + return result; +} + +int main (void) +{ + int i, dot3; + + check_vect (); + + for (i=0; i<N; i++) { + X[i] = i; + Y[i] = 64-i; + __asm__ volatile (""); + } + + dot3 = foo3 (N); + if (dot3 != DOT3) + abort (); + + return 0; +} + +/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target vect_unpack } } } */ +/* { dg-final { cleanup-tree-dump "vect" } } */ |