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[PR tree-optimization/68599] Avoid over-zealous optimization with -funsafe-loop-optim...
authorlaw <law@138bc75d-0d04-0410-961f-82ee72b054a4>
Thu, 3 Dec 2015 15:40:08 +0000 (15:40 +0000)
committerlaw <law@138bc75d-0d04-0410-961f-82ee72b054a4>
Thu, 3 Dec 2015 15:40:08 +0000 (15:40 +0000)
commit005f5910d046176b0c8c8f7d399111740225a270
tree9f82d6adb1a1a1767cf5c5002c5f241448ca67b7tree | snapshot
parent10cb5d058edfe5448d98b9556bd9a2bc5b26984dcommit | diff
[PR tree-optimization/68599] Avoid over-zealous optimization with -funsafe-loop-optimizations

PR tree-optimization/68599
* loop-init.c (rtl_loop_init): Set LOOPS_HAVE_RECORDED_EXITS
in call to loop_optimizer_init.
* loop-iv.c (get_simple_loop_desc): Only allow unsafe loop
optimization to drop the assumptions/infinite notations if
the loop has a single exit.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231231 138bc75d-0d04-0410-961f-82ee72b054a4
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