| /* { dg-require-effective-target vect_int } */ |
| |
| #include <stdarg.h> |
| #include "tree-vect.h" |
| |
| #if VECTOR_BITS > 128 |
| #define N (VECTOR_BITS * 2 / 32) |
| #define OFF (VECTOR_BITS / 32) |
| #else |
| #define N 8 |
| #define OFF 8 |
| #endif |
| |
| /* Check handling of accesses for which the "initial condition" - |
| the expression that represents the first location accessed - is |
| more involved than just an ssa_name. */ |
| |
| int ib[N+OFF] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))) = {0, 1, 3, 5, 7, 11, 13, 17, 0, 2, 6, 10, 14, 22, 26, 34}; |
| |
| __attribute__ ((noinline)) |
| int main1 (int *ib, int off) |
| { |
| int i; |
| int ia[N]; |
| |
| for (i = 0; i < N; i++) |
| { |
| ia[i] = ib[i+off]; |
| } |
| |
| |
| /* check results: */ |
| for (i = 0; i < N; i++) |
| { |
| if (ia[i] != ib[i+off]) |
| abort (); |
| } |
| |
| return 0; |
| } |
| |
| int main (void) |
| { |
| check_vect (); |
| |
| main1 (ib, 8); |
| return 0; |
| } |
| |
| /* For targets that don't support misaligned loads we version for the load. |
| The store is aligned if alignment can be forced on the stack. Otherwise, we need to |
| peel the loop in order to align the store. For targets that can't align variables |
| using peeling (don't guarantee natural alignment) versioning the loop is required |
| both for the load and the store. */ |
| |
| /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */ |
| /* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 2 "vect" { target { ! vect_align_stack_vars } xfail { ! vect_unaligned_possible } } } } */ |
| /* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 1 "vect" { target vect_align_stack_vars xfail { ! vect_unaligned_possible } } } } */ |
| /* { dg-final { scan-tree-dump-times "Alignment of access forced using peeling" 1 "vect" { target { {! vect_no_align} && { unaligned_stack && vector_alignment_reachable } } } } } */ |
| /* { dg-final { scan-tree-dump-times "Alignment of access forced using versioning." 1 "vect" { target { { {! unaligned_stack} && { vect_no_align && { ! vect_hw_misalign } } } || {unaligned_stack && { {! vector_alignment_reachable} && {! vect_no_align } } } } } } } */ |
| /* { dg-final { scan-tree-dump-times "Alignment of access forced using versioning." 2 "vect" { target { { unaligned_stack && { vector_alignment_reachable && vect_no_align } } || {unaligned_stack && { {! vector_alignment_reachable} && vect_no_align } } } } } } */ |