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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [testsuite/] [gcc.dg/] [vect/] [vect-widen-mult-u16.c] - Rev 399
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/* { dg-require-effective-target vect_int } */ #include <stdarg.h> #include "tree-vect.h" #define N 64 unsigned short X[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))); unsigned short Y[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))); unsigned int result[N]; /* short->int widening-mult */ __attribute__ ((noinline)) int foo1(int len) { int i; /* Not vectorized because X[i] and Y[i] are casted to 'int' so the widening multiplication pattern is not recognized. */ for (i=0; i<len; i++) { result[i] = (unsigned int)(X[i] * Y[i]); } } int main (void) { int i; check_vect (); for (i=0; i<N; i++) { X[i] = i; Y[i] = 64-i; __asm__ volatile (""); } foo1 (N); for (i=0; i<N; i++) { if (result[i] != X[i] * Y[i]) abort (); } return 0; } /*The induction loop is vectorized */ /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 2 "vect" { xfail *-*-* } } } */ /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target vect_pack_trunc } } } */ /* { dg-final { cleanup-tree-dump "vect" } } */
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