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Improve comments in pass_tree_loop_init::execute

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2015-11-17  Tom de Vries  <tom@codesourcery.com>

	* tree-ssa-loop.c (pass_tree_loop_init::execute): Improve comments.

From-SVN: r230505
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Tom de Vries 2015-11-17 21:42:36 +00:00 committed by Tom de Vries
parent ed22b76f3f
commit 33c6daf478
2 changed files with 10 additions and 3 deletions
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4
gcc/ChangeLog
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@ -1,3 +1,7 @@
2015-11-17 Tom de Vries <tom@codesourcery.com>
* tree-ssa-loop.c (pass_tree_loop_init::execute): Improve comments.
2015-11-17 Tom de Vries <tom@codesourcery.com>
* tree-scalar-evolution.c (scev_const_prop): Dump details if replacing

9
gcc/tree-ssa-loop.c
View File

@ -211,12 +211,15 @@ public:
unsigned int
pass_tree_loop_init::execute (function *fun ATTRIBUTE_UNUSED)
{
/* When processing a loop in the loop pipeline, we should be able to assert
that:
(loops_state_satisfies_p (LOOPS_NORMAL | LOOPS_HAVE_RECORDED_EXITS
| LOOP_CLOSED_SSA)
&& scev_initialized_p ())
*/
loop_optimizer_init (LOOPS_NORMAL
| LOOPS_HAVE_RECORDED_EXITS);
rewrite_into_loop_closed_ssa (NULL, TODO_update_ssa);
/* We might discover new loops, e.g. when turning irreducible
regions into reducible. */
scev_initialize ();
return 0;