diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/vect/no-vfa-vect-61.c')
-rw-r--r-- | gcc/testsuite/gcc.dg/vect/no-vfa-vect-61.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/vect/no-vfa-vect-61.c b/gcc/testsuite/gcc.dg/vect/no-vfa-vect-61.c new file mode 100644 index 0000000..9f4e8e9 --- /dev/null +++ b/gcc/testsuite/gcc.dg/vect/no-vfa-vect-61.c @@ -0,0 +1,64 @@ +/* { 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" } } */ |