diff options
| author | rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2013-09-17 07:47:49 +0000 |
|---|---|---|
| committer | rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2013-09-17 07:47:49 +0000 |
| commit | 157cd65f8f218bfa79ae6765409f6bb122e71496 (patch) | |
| tree | 5503f1fa8c1ef7d6aec0b94ebada2f7c4bcb7308 /gcc/tree-loop-distribution.c | |
| parent | 3f8e75547a9af18ed9e2da238869b34f8e651553 (diff) | |
| download | gcc-157cd65f8f218bfa79ae6765409f6bb122e71496.tar.gz | |
2013-09-17 Richard Biener <rguenther@suse.de>
PR tree-optimization/58432
* tree-loop-distribution.c (tree_loop_distribution): Also
scan PHIs for outside loop uses and seed a partition from them.
* gcc.dg/pr58432.c: New testcase.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@202644 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tree-loop-distribution.c')
| -rw-r--r-- | gcc/tree-loop-distribution.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/gcc/tree-loop-distribution.c b/gcc/tree-loop-distribution.c index e3e4e12b025..7482d8c68bc 100644 --- a/gcc/tree-loop-distribution.c +++ b/gcc/tree-loop-distribution.c @@ -1676,6 +1676,17 @@ tree_loop_distribution (void) for (i = 0; i < loop->num_nodes; ++i) { gimple_stmt_iterator gsi; + for (gsi = gsi_start_phis (bbs[i]); !gsi_end_p (gsi); gsi_next (&gsi)) + { + gimple phi = gsi_stmt (gsi); + if (virtual_operand_p (gimple_phi_result (phi))) + continue; + /* Distribute stmts which have defs that are used outside of + the loop. */ + if (!stmt_has_scalar_dependences_outside_loop (loop, phi)) + continue; + work_list.safe_push (phi); + } for (gsi = gsi_start_bb (bbs[i]); !gsi_end_p (gsi); gsi_next (&gsi)) { gimple stmt = gsi_stmt (gsi); |