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[/] [scarts/] [trunk/] [toolchain/] [scarts-gcc/] [gcc-4.1.1/] [gcc/] [testsuite/] [gcc.dg/] [vect/] [vect-37.c] - Rev 12
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/* { dg-require-effective-target vect_int } */ #include <stdarg.h> #include "tree-vect.h" #define N 16 char x[N] __attribute__ ((__aligned__(16))); int main1 (char *y) { struct { char *p; char *q; } s; char cb[N] __attribute__ ((__aligned__(16))) = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45}; int i; /* Not vectorized - can't antialias the pointer s.p from the array cb. */ s.p = y; for (i = 0; i < N; i++) { s.p[i] = cb[i]; } /* check results: */ for (i = 0; i < N; i++) { if (s.p[i] != cb[i]) abort (); } /* Not vectorized - can't antialias the pointer s.p from the pointer s.q. */ s.q = cb; for (i = 0; i < N; i++) { s.p[i] = s.q[i]; } /* check results: */ for (i = 0; i < N; i++) { if (s.p[i] != s.q[i]) abort (); } return 0; } int main (void) { check_vect (); return main1 (x); } /* Currently the loops fail to vectorize due to aliasing problems. If/when the aliasing problems are resolved, unalignment may prevent vectorization on some targets. */ /* { dg-final { scan-tree-dump-times "vectorized 2 loops" 1 "vect" { xfail *-*-* } } } */ /* { dg-final { scan-tree-dump-times "can't determine dependence between" 2 "vect" } } */ /* { dg-final { cleanup-tree-dump "vect" } } */