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Diffstat (limited to 'gcc/tree-vect-loop-manip.c')
| -rw-r--r-- | gcc/tree-vect-loop-manip.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/gcc/tree-vect-loop-manip.c b/gcc/tree-vect-loop-manip.c index fabf52d..b0120a9 100644 --- a/gcc/tree-vect-loop-manip.c +++ b/gcc/tree-vect-loop-manip.c @@ -1057,6 +1057,15 @@ slpeel_tree_peel_loop_to_edge (struct loop *loop, if (!slpeel_can_duplicate_loop_p (loop, e)) return NULL; + /* We might have a queued need to update virtual SSA form. As we + delete the update SSA machinery below after doing a regular + incremental SSA update during loop copying make sure we don't + lose that fact. + ??? Needing to update virtual SSA form by renaming is unfortunate + but not all of the vectorizer code inserting new loads / stores + properly assigns virtual operands to those statements. */ + update_ssa (TODO_update_ssa_only_virtuals); + /* If the loop has a virtual PHI, but exit bb doesn't, create a virtual PHI in the exit bb and rename all the uses after the loop. This simplifies the *guard[12] routines, which assume loop closed SSA form for all PHIs |