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-rw-r--r--gcc/ChangeLog4
-rw-r--r--gcc/tree-ssa-loop.c9
2 files changed, 10 insertions, 3 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 8267d67..2e20b43 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,9 @@
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
uses of ssa_name with constant.
diff --git a/gcc/tree-ssa-loop.c b/gcc/tree-ssa-loop.c
index 8ecd140..afdef12 100644
--- a/gcc/tree-ssa-loop.c
+++ b/gcc/tree-ssa-loop.c
@@ -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;