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tree-if-conv.c (tree_if_conversion): Move call to ifcvt_local_dce after local CSE. 

2019-10-01  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

	* tree-if-conv.c (tree_if_conversion): Move call to ifcvt_local_dce
	after local CSE.

From-SVN: r276417
This commit is contained in:
Prathamesh Kulkarni 2019-10-01 17:10:01 +00:00 committed by Prathamesh Kulkarni
parent 0b92cf305d
commit f30b3d2891
2 changed files with 8 additions and 3 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2019-10-01 Prathamesh Kulkarni <prathamesh.kulkarni@linaro.org>
* tree-if-conv.c (tree_if_conversion): Move call to ifcvt_local_dce
after local CSE.
2019-10-01 Jan Hubicka <hubicka@ucw.cz>
* doc/invoke.texi (early-inlining-insns-O2): Document.

6
gcc/tree-if-conv.c
View File

@ -3060,9 +3060,6 @@ tree_if_conversion (class loop *loop, vec<gimple *> *preds)
on-the-fly. */
combine_blocks (loop);
/* Delete dead predicate computations. */
ifcvt_local_dce (loop->header);
/* Perform local CSE, this esp. helps the vectorizer analysis if loads
and stores are involved. CSE only the loop body, not the entry
PHIs, those are to be kept in sync with the non-if-converted copy.
@ -3071,6 +3068,9 @@ tree_if_conversion (class loop *loop, vec<gimple *> *preds)
bitmap_set_bit (exit_bbs, single_exit (loop)->dest->index);
bitmap_set_bit (exit_bbs, loop->latch->index);
todo |= do_rpo_vn (cfun, loop_preheader_edge (loop), exit_bbs);
/* Delete dead predicate computations. */
ifcvt_local_dce (loop->header);
BITMAP_FREE (exit_bbs);
todo |= TODO_cleanup_cfg;