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[/] [openrisc/] [trunk/] [gnu-old/] [gcc-4.2.2/] [gcc/] [testsuite/] [gcc.dg/] [vect/] [vect-60.c] - Rev 867
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/* { dg-require-effective-target vect_float } */ #include <stdarg.h> #include "tree-vect.h" #define N 256 void bar (float *pa, float *pb, float *pc) { int i; /* check results: */ for (i = 0; i < N/2; i++) { if (pa[i] != (pb[i+1] * pc[i+1])) abort (); } return; } /* Unaligned pointer read accesses, aligned write access. The loop bound is unknown No aliasing problems. vect-52.c is similar to this one with one difference: the alignment of the read accesses is unknown. vect-56.c is similar to this one with one difference: the loop bound is known. vect-61.c is similar to this one with two differences: aliasing is not a problem, and the write access has unknown alignment. */ int main1 (int n) { int i; float a[N] __attribute__ ((__aligned__(16))); float b[N] __attribute__ ((__aligned__(16))) = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57}; float c[N] __attribute__ ((__aligned__(16))) = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19}; float *pa = a; float *pb = b; float *pc = c; for (i = 0; i < n/2; i++) { pa[i] = pb[i+1] * pc[i+1]; } /* check results: */ for (i = 0; i < N/2; i++) { if (pa[i] != (pb[i+1] * pc[i+1])) abort (); } return 0; } int main (void) { int i; int n=N; check_vect (); main1 (n); return 0; } /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { xfail vect_no_align } } } */ /* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 2 "vect" { xfail vect_no_align } } } */ /* { dg-final { scan-tree-dump-times "Alignment of access forced using peeling" 0 "vect" } } */ /* { dg-final { cleanup-tree-dump "vect" } } */
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