diff options
Diffstat (limited to 'gcc/doc/tm.texi')
| -rw-r--r-- | gcc/doc/tm.texi | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi index 5e30564..215552c 100644 --- a/gcc/doc/tm.texi +++ b/gcc/doc/tm.texi @@ -6382,12 +6382,14 @@ return type of the vectorized function shall be of vector type @var{vec_type_out} and the argument types should be @var{vec_type_in}. @end deftypefn -@deftypefn {Target Hook} bool TARGET_VECTORIZE_SUPPORT_VECTOR_MISALIGNMENT (machine_mode @var{mode}, const_tree @var{type}, int @var{misalignment}, bool @var{is_packed}) +@deftypefn {Target Hook} bool TARGET_VECTORIZE_SUPPORT_VECTOR_MISALIGNMENT (machine_mode @var{mode}, const_tree @var{type}, int @var{misalignment}, bool @var{is_packed}, bool @var{is_gather_scatter}) This hook should return true if the target supports misaligned vector store/load of a specific factor denoted in the @var{misalignment} parameter. The vector store/load should be of machine mode @var{mode} and -the elements in the vectors should be of type @var{type}. @var{is_packed} -parameter is true if the memory access is defined in a packed struct. +the elements in the vectors should be of type @var{type}. The +@var{is_packed} parameter is true if the misalignment is unknown and the +memory access is defined in a packed struct. @var{is_gather_scatter} is true +if the load/store is a gather or scatter. @end deftypefn @deftypefn {Target Hook} machine_mode TARGET_VECTORIZE_PREFERRED_SIMD_MODE (scalar_mode @var{mode}) @@ -6511,6 +6513,15 @@ The default is @code{NULL_TREE} which means to not vectorize scatter stores. @end deftypefn +@deftypefn {Target Hook} bool TARGET_VECTORIZE_PREFER_GATHER_SCATTER (machine_mode @var{mode}, int @var{scale}, unsigned int @var{group_size}) +This hook returns TRUE if gather loads or scatter stores are cheaper on +this target than a sequence of elementwise loads or stores. The @var{mode} +and @var{scale} correspond to the @code{gather_load} and +@code{scatter_store} instruction patterns. The @var{group_size} is the +number of scalar elements in each scalar loop iteration that are to be +combined into the vector. +@end deftypefn + @deftypefn {Target Hook} int TARGET_SIMD_CLONE_COMPUTE_VECSIZE_AND_SIMDLEN (struct cgraph_node *@var{}, struct cgraph_simd_clone *@var{}, @var{tree}, @var{int}, @var{bool}) This hook should set @var{vecsize_mangle}, @var{vecsize_int}, @var{vecsize_float} fields in @var{simd_clone} structure pointed by @var{clone_info} argument and also |