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| author | Richard Biener <rguenther@suse.de> | 2018-05-16 13:02:27 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2018-05-16 13:02:27 +0000 |
| commit | 311eb8168ea83b8b7ce76735fee8c594cda5a0e0 (patch) | |
| tree | 458fa57074883441e57ab838c7d5537943e23ee7 /gcc/tree-vectorizer.c | |
| parent | 1f3cb66326d724cca10ac6097ab32c53191c53ff (diff) | |
| download | gcc-311eb8168ea83b8b7ce76735fee8c594cda5a0e0.zip gcc-311eb8168ea83b8b7ce76735fee8c594cda5a0e0.tar.gz gcc-311eb8168ea83b8b7ce76735fee8c594cda5a0e0.tar.bz2 | |
params.def (PARAM_DSE_MAX_ALIAS_QUERIES_PER_STORE): New param.
2018-05-16 Richard Biener <rguenther@suse.de>
* params.def (PARAM_DSE_MAX_ALIAS_QUERIES_PER_STORE): New param.
* doc/invoke.texi (dse-max-alias-queries-per-store): Document.
* tree-ssa-dse.c: Include tree-ssa-loop.h.
(check_name): New callback.
(dse_classify_store): Track cycles via a visited bitmap of PHI
defs and simplify handling of in-loop and across loop dead stores
and properly fail for loop-variant refs. Handle byte-tracking with
multiple defs. Use PARAM_DSE_MAX_ALIAS_QUERIES_PER_STORE for
limiting the walk.
* gcc.dg/tree-ssa/ssa-dse-32.c: New testcase.
* gcc.dg/tree-ssa/ssa-dse-33.c: Likewise.
* gcc.dg/uninit-pr81897-2.c: Use -fno-tree-dse.
From-SVN: r260288
Diffstat (limited to 'gcc/tree-vectorizer.c')
0 files changed, 0 insertions, 0 deletions