| commit | 1d183080ed126bedbe0f3a8b15a09186b9ebbc27 | |
| author | rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> | |
| Thu, 14 Dec 2017 14:32:24 +0000 (14 14:32 +0000) | ||
| committer | rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> | |
| Thu, 14 Dec 2017 14:32:24 +0000 (14 14:32 +0000) | ||
| tree | 4ed9aa324a460c80fca144994aeda6284b57d5b2 | treesnapshot (tar.gz zip) |
| parent | 57904972d5515909edfa4f64cdd51b7ee324c876 | commitdiff |
2017-12-14 Richard Biener <rguenther@suse.de>
PR tree-optimization/83326
* tree-ssa-loop-ivcanon.c (try_unroll_loop_completely): Add
may_be_zero parameter and handle it by not marking the first
peeled copy as not exiting the loop.
(try_peel_loop): Likewise.
(canonicalize_loop_induction_variables): Use number_of_iterations_exit
to handle the case of constant or zero iterations and perform
loop header copying on-the-fly.
* gcc.dg/tree-ssa/pr81388-2.c: Adjust.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@255635 138bc75d-0d04-0410-961f-82ee72b054a4
PR tree-optimization/83326
* tree-ssa-loop-ivcanon.c (try_unroll_loop_completely): Add
may_be_zero parameter and handle it by not marking the first
peeled copy as not exiting the loop.
(try_peel_loop): Likewise.
(canonicalize_loop_induction_variables): Use number_of_iterations_exit
to handle the case of constant or zero iterations and perform
loop header copying on-the-fly.
* gcc.dg/tree-ssa/pr81388-2.c: Adjust.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@255635 138bc75d-0d04-0410-961f-82ee72b054a4
| gcc/ChangeLog | diffblobblamehistory | |
| gcc/testsuite/ChangeLog | diffblobblamehistory | |
| gcc/testsuite/gcc.dg/tree-ssa/pr81388-2.c | diffblobblamehistory | |
| gcc/tree-ssa-loop-ivcanon.c | diffblobblamehistory |