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-rw-r--r--gcc/gimple-loop-interchange.cc7
1 files changed, 4 insertions, 3 deletions
diff --git a/gcc/gimple-loop-interchange.cc b/gcc/gimple-loop-interchange.cc
index 01a26c0..eb35263 100644
--- a/gcc/gimple-loop-interchange.cc
+++ b/gcc/gimple-loop-interchange.cc
@@ -1119,6 +1119,10 @@ tree_loop_interchange::interchange_loops (loop_cand &iloop, loop_cand &oloop)
oloop.m_loop->any_likely_upper_bound = false;
free_numbers_of_iterations_estimates (oloop.m_loop);
+ /* Clear all cached scev information. This is expensive but shouldn't be
+ a problem given we interchange in very limited times. */
+ scev_reset_htab ();
+
/* ??? The association between the loop data structure and the
CFG changed, so what was loop N at the source level is now
loop M. We should think of retaining the association or breaking
@@ -2070,9 +2074,6 @@ pass_linterchange::execute (function *fun)
loop_nest.release ();
}
- if (changed_p)
- scev_reset_htab ();
-
return changed_p ? (TODO_update_ssa_only_virtuals) : 0;
}