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[/] [scarts/] [trunk/] [toolchain/] [scarts-gcc/] [gcc-4.1.1/] [gcc/] [testsuite/] [gcc.dg/] [vect/] [vect-61.c] - Rev 12
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/* { dg-require-effective-target vect_int } */ /* { 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 with known alignment, and an unaligned write access with unknown alignment. The loop bound is iunknown. Can't prove that the pointers don't alias. vect-57.c is similar to this one with one difference: the loop bound is known. vect-60.c is similar to this one with two differences: aliasing is not a problem, and the write access is unaligned. */ int main1 (int n , float *pa) { int i; 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 *pb = b; float *pc = c; for (i = 0; i < n/2; i++) { pa[i] = pb[i+1] * pc[i+1]; } bar (pa,pb,pc); return 0; } int main (void) { int i; int n=N; float a[N] __attribute__ ((__aligned__(16))); check_vect (); main1 (n,a); return 0; } /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { xfail *-*-* } } } */ /* { dg-final { cleanup-tree-dump "vect" } } */