* tree-data-refs.c (split_constant_offset): Expose.
* tree-data-refs.h (split_constant_offset): Add declaration.
* tree-vectorizer.h (dr_alignment_support): Renamed
dr_unaligned_software_pipeline to dr_explicit_realign_optimized.
Added a new value dr_explicit_realign.
(_stmt_vec_info): Added new fields: dr_base_address, dr_init,
dr_offset, dr_step, and dr_aligned_to, along with new access
functions for these fields: STMT_VINFO_DR_BASE_ADDRESS,
STMT_VINFO_DR_INIT, STMT_VINFO_DR_OFFSET, STMT_VINFO_DR_STEP, and
STMT_VINFO_DR_ALIGNED_TO.
* tree-vectorizer.c (vect_supportable_dr_alignment): Add
documentation.
In case of outer-loop vectorization with non-fixed misalignment - use
the dr_explicit_realign scheme instead of the optimized realignment
scheme.
(new_stmt_vec_info): Initialize new fields.
* tree-vect-analyze.c (vect_compute_data_ref_alignment): Handle the
'nested_in_vect_loop' case. Change verbosity level.
(vect_analyze_data_ref_access): Handle the 'nested_in_vect_loop' case.
Don't fail on zero step in the outer-loop for loads.
(vect_analyze_data_refs): Call split_constant_offset to calculate base,
offset and init relative to the outer-loop.
* tree-vect-transform.c (vect_create_data_ref_ptr): Replace the unused
BSI function argument with a new function argument - at_loop.
Simplify the condition that determines STEP. Takes additional argument
INV_P. Support outer-loop vectorization (handle the nested_in_vect_loop
case), including zero step in the outer-loop. Call
vect_create_addr_base_for_vector_ref with additional argument.
(vect_create_addr_base_for_vector_ref): Takes additional argument LOOP.
Updated function documentation. Handle the 'nested_in_vect_loop' case.
Fixed and simplified calculation of step.
(vectorizable_store): Call vect_create_data_ref_ptr with loop instead
of bsi, and with additional argument. Call bump_vector_ptr with
additional argument. Fix typos. Handle the 'nested_in_vect_loop' case.
(vect_setup_realignment): Takes additional arguments INIT_ADDR and
DR_ALIGNMENT_SUPPORT. Returns another value AT_LOOP. Handle the case
when the realignment setup needs to take place inside the loop. Support
the dr_explicit_realign scheme. Allow generating the optimized
realignment scheme for outer-loop vectorization. Added documentation.
(vectorizable_load): Support the dr_explicit_realign scheme. Handle the
'nested_in_vect_loop' case, including loads that are invariant in the
outer-loop and the realignment schemes. Handle the case when the
realignment setup needs to take place inside the loop. Call
vect_setup_realignment with additional arguments. Call
vect_create_data_ref_ptr with additional argument and with loop instead
of bsi. Fix 80-column overflow. Fix typos. Rename PHI_STMT to PHI.
(vect_gen_niters_for_prolog_loop): Call
vect_create_addr_base_for_vector_ref with additional arguments.
(vect_create_cond_for_align_checks): Likewise.
(bump_vector_ptr): Updated to support the new dr_explicit_realign
scheme: takes additional argument bump; argument ptr_incr is now
optional; updated documentation.
(vect_init_vector): Takes additional argument (bsi). Use it, if
available, to insert the vector initialization.
(get_initial_def_for_induction): Pass additional argument in call to
vect_init_vector.
(vect_get_vec_def_for_operand): Likewise.
(vect_setup_realignment): Likewise.
(vectorizable_load): Likewise.
From-SVN: r127624
This directory contains the GNU Compiler Collection (GCC).
The GNU Compiler Collection is free software. See the file COPYING
for copying permission. The manuals, and some of the runtime
libraries, are under different terms; see the individual source files
for details.
The directory INSTALL contains copies of the installation information
as HTML and plain text. The source of this information is
gcc/doc/install.texi. The installation information includes details
of what is included in the GCC sources and what files GCC installs.
See the file gcc/doc/gcc.texi (together with other files that it
includes) for usage and porting information. An online readable
version of the manual is in the files gcc/doc/gcc.info*.
See http://gcc.gnu.org/bugs.html for how to report bugs usefully.
468c2ac0cc