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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [testsuite/] [gcc.dg/] [vect/] [vect-reduc-dot-s16b.c] - Rev 298
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/* { dg-require-effective-target vect_int } */ #include <stdarg.h> #include "tree-vect.h" #define N 64 #define DOT 43680 signed short X[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))); signed short Y[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))); /* short->short->int dot product. Should be vectorized on architectures supporting vectorized multiplication of two short args with short result, e.g "mulv4hi3" and widenning sum */ __attribute__ ((noinline)) int foo (int len) { int i; int result = 0; short prod; for (i = 0; i < len; i++) { prod = X[i] * Y[i]; result += prod; } return result; } int main (void) { int i, dot; check_vect (); for (i = 0; i < N; i++) { X[i] = i; Y[i] = 64 - i; __asm__ volatile (""); } dot = foo (N); if (dot != DOT) abort (); return 0; } /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target { vect_short_mult && { vect_widen_sum_hi_to_si || vect_unpack } } } } } */ /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 0 "vect" { target { ! vect_short_mult } } } } */ /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 0 "vect" { target { { ! vect_widen_sum_hi_to_si } && { ! vect_unpack } } } } } */ /* { dg-final { cleanup-tree-dump "vect" } } */