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| author | Richard Biener <rguenther@suse.de> | 2015-03-23 12:47:54 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2015-03-23 12:47:54 +0000 |
| commit | 89d390e57a34432f9a8f14b752eec061fcb2b64e (patch) | |
| tree | 6b21732ccd16640529efa5c8589edbb5d82d1f92 /gcc/tree-vect-slp.c | |
| parent | c61928d098559fedd9032e4292740ba020103629 (diff) | |
| download | gcc-89d390e57a34432f9a8f14b752eec061fcb2b64e.zip gcc-89d390e57a34432f9a8f14b752eec061fcb2b64e.tar.gz gcc-89d390e57a34432f9a8f14b752eec061fcb2b64e.tar.bz2 | |
re PR tree-optimization/65494 (Loop is not vectorized because of operand canonicalization.)
2015-03-23 Richard Biener <rguenther@suse.de>
PR tree-optimization/65494
* tree-vect-slp.c (vect_build_slp_tree): Do not (re-)allocate
matches here.
(vect_analyze_slp_instance): But do that here, always and once.
* gcc.dg/vect/pr65494.c: New testcase.
From-SVN: r221592
Diffstat (limited to 'gcc/tree-vect-slp.c')
| -rw-r--r-- | gcc/tree-vect-slp.c | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/gcc/tree-vect-slp.c b/gcc/tree-vect-slp.c index ce0ca91..c57a5ca 100644 --- a/gcc/tree-vect-slp.c +++ b/gcc/tree-vect-slp.c @@ -926,14 +926,9 @@ vect_build_slp_tree (loop_vec_info loop_vinfo, bb_vec_info bb_vinfo, bool *matches, unsigned *npermutes, unsigned *tree_size, unsigned max_tree_size) { - unsigned nops, i, this_npermutes = 0, this_tree_size = 0; + unsigned nops, i, this_tree_size = 0; gimple stmt; - if (!matches) - matches = XALLOCAVEC (bool, group_size); - if (!npermutes) - npermutes = &this_npermutes; - matches[0] = false; stmt = SLP_TREE_SCALAR_STMTS (*node)[0]; @@ -1012,7 +1007,6 @@ vect_build_slp_tree (loop_vec_info loop_vinfo, bb_vec_info bb_vinfo, return false; } - bool *matches = XALLOCAVEC (bool, group_size); if (vect_build_slp_tree (loop_vinfo, bb_vinfo, &child, group_size, max_nunits, loads, vectorization_factor, matches, @@ -1637,9 +1631,11 @@ vect_analyze_slp_instance (loop_vec_info loop_vinfo, bb_vec_info bb_vinfo, loads.create (group_size); /* Build the tree for the SLP instance. */ + bool *matches = XALLOCAVEC (bool, group_size); + unsigned npermutes = 0; if (vect_build_slp_tree (loop_vinfo, bb_vinfo, &node, group_size, &max_nunits, &loads, - vectorization_factor, NULL, NULL, NULL, + vectorization_factor, matches, &npermutes, NULL, max_tree_size)) { /* Calculate the unrolling factor based on the smallest type. */ |