diff options
Diffstat (limited to 'gcc/target.def')
| -rw-r--r-- | gcc/target.def | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/gcc/target.def b/gcc/target.def index 427dc40..5dd8f25 100644 --- a/gcc/target.def +++ b/gcc/target.def @@ -2060,6 +2060,20 @@ all zeros. GCC can then try to branch around the instruction instead.", (unsigned ifn), default_empty_mask_is_expensive) +/* Prefer gather/scatter loads/stores to e.g. elementwise accesses if\n\ +we cannot use a contiguous access. */ +DEFHOOK +(prefer_gather_scatter, + "This hook returns TRUE if gather loads or scatter stores are cheaper on\n\ +this target than a sequence of elementwise loads or stores. The @var{mode}\n\ +and @var{scale} correspond to the @code{gather_load} and\n\ +@code{scatter_store} instruction patterns. The @var{group_size} is the\n\ +number of scalar elements in each scalar loop iteration that are to be\n\ +combined into the vector.", + bool, + (machine_mode mode, int scale, unsigned int group_size), + hook_bool_mode_int_unsigned_false) + /* Target builtin that implements vector gather operation. */ DEFHOOK (builtin_gather, |