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| author | Richard Sandiford <richard.sandiford@arm.com> | 2019-10-20 12:58:22 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2019-10-20 12:58:22 +0000 |
| commit | fa0c8df71d4f0476834db0b7cd88524878b46cf7 (patch) | |
| tree | 1308c01dcb8bc9938758c3c6bab4f813000992fe /gcc/testsuite | |
| parent | b4edf5c524fd0d8fef50f991ce876c6eb5ed3a28 (diff) | |
| download | gcc-fa0c8df71d4f0476834db0b7cd88524878b46cf7.zip gcc-fa0c8df71d4f0476834db0b7cd88524878b46cf7.tar.gz gcc-fa0c8df71d4f0476834db0b7cd88524878b46cf7.tar.bz2 | |
Avoid recomputing data references in BB SLP
If the first attempt at applying BB SLP to a region fails, the main loop
in vect_slp_bb recomputes the region's bounds and datarefs for the next
vector size. AFAICT this isn't needed any more; we should be able
to reuse the datarefs from the first attempt instead.
2019-10-20 Richard Sandiford <richard.sandiford@arm.com>
gcc/
* tree-vect-slp.c (vect_slp_analyze_bb_1): Call save_datarefs
when processing the given datarefs for the first time and
check_datarefs subsequently.
(vect_slp_bb_region): New function, split out of...
(vect_slp_bb): ...here. Don't recompute the region bounds and
dataref sets when retrying with a different vector size.
From-SVN: r277210
Diffstat (limited to 'gcc/testsuite')
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