vector.scatter
← vector dialect
Non-atomic scatter of a vector to per-lane signed logical offsets added to the last view axis of a full-rank view origin. Each lane writes origin with the final coordinate adjusted by offsets[lane], and active lane addresses must be distinct because no atomic conflict resolution is implied.
Operation contract
| Property |
Value |
| Semantic phase |
— |
| Interfaces |
MemoryAccess |
| Memory effects |
write view |
Signature
| Kind |
Name |
Type |
Cardinality |
Description |
| Operand |
value |
vector |
required |
Vector value to store. |
| Operand |
view |
view |
required |
Typed destination view. |
| Operand |
offsets |
vector |
required |
Per-lane signed element offsets from the logical origin. |
| Operand |
indices |
index |
variadic |
Dynamic logical origin indices. |
| Attribute |
cache_scope |
enum CacheScope |
optional |
Optional cache/coherency scope required by target lowering. |
| Attribute |
cache_temporal |
enum CacheTemporal |
optional |
Optional temporal cache policy required by target lowering. |
| Attribute |
static_indices |
i64_array |
required |
Static logical origin indices with INT64_MIN sentinels for dynamics. |
Verification constraints
HasIndexOrNonI1IntegerElement(offsets)SameElementType(value, view)SameShape(offsets, value)
Examples
vector.scatter %v, %view[%row, %col][%offsets] : vector<4xf32>, view<[%m]x[%n]xf32, %layout>, vector<4xindex>