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| author | Alexander Ivchenko <alexander.ivchenko@intel.com> | 2015-03-16 10:30:57 +0300 |
|---|---|---|
| committer | Alexander Ivchenko <alexander.ivchenko@intel.com> | 2015-03-17 13:03:08 +0300 |
| commit | 3951a3654b8197466bee3e6732b3bc94e4018f68 (patch) | |
| tree | 5f71295bf4a3df8c9d8187ae983591466ff82a86 /gcc-4.9/gcc/tree-vect-stmts.c | |
| parent | 8075018d7ad15059179e6ff7d0dd12071e1749b9 (diff) | |
| download | toolchain_gcc-3951a3654b8197466bee3e6732b3bc94e4018f68.tar.gz toolchain_gcc-3951a3654b8197466bee3e6732b3bc94e4018f68.tar.bz2 toolchain_gcc-3951a3654b8197466bee3e6732b3bc94e4018f68.zip | |
[4.9] Several improvements in code generation for x86. Backport from trunk.
2014-11-21 Evgeny Stupachenko <evstupac@gmail.com>
PR target/60451
* config/i386/i386.c (expand_vec_perm_even_odd_pack): New.
(expand_vec_perm_even_odd_1): Add new expand for V8HI mode,
replace for V16QI, V16HI and V32QI modes.
(ix86_expand_vec_perm_const_1): Add new expand.
2014-06-11 Evgeny Stupachenko <evstupac@gmail.com>
* tree-vect-data-refs.c (vect_grouped_store_supported): New
check for stores group of length 3.
(vect_permute_store_chain): New permutations for stores group of
length 3.
* tree-vect-stmts.c (vect_model_store_cost): Change cost
of vec_perm_shuffle for the new permutations.
2014-11-28 Evgeny Stupachenko <evstupac@gmail.com>
* tree-vect-data-refs.c (vect_transform_grouped_load): Limit shift
permutations to loads group of size 3.
2014-12-18 Bin Cheng <bin.cheng@arm.com>
PR tree-optimization/62178
* tree-ssa-loop-ivopts.c (cheaper_cost_with_cand): New function.
(iv_ca_replace): New function.
(try_improve_iv_set): New parameter try_replace_p.
Break local optimal fixed-point by calling iv_ca_replace.
(find_optimal_iv_set_1): Pass new argument to try_improve_iv_set.
Change-Id: I5dca8236d3807cedc5e09d7eda65f0ccec9f5cb2
Signed-off-by: Alexander Ivchenko <alexander.ivchenko@intel.com>
Diffstat (limited to 'gcc-4.9/gcc/tree-vect-stmts.c')
| -rw-r--r-- | gcc-4.9/gcc/tree-vect-stmts.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/gcc-4.9/gcc/tree-vect-stmts.c b/gcc-4.9/gcc/tree-vect-stmts.c index d208f2d6b..9677d601c 100644 --- a/gcc-4.9/gcc/tree-vect-stmts.c +++ b/gcc-4.9/gcc/tree-vect-stmts.c @@ -974,9 +974,9 @@ vect_model_store_cost (stmt_vec_info stmt_info, int ncopies, include the cost of the permutes. */ if (!store_lanes_p && group_size > 1) { - /* Uses a high and low interleave operation for each needed permute. */ - - int nstmts = ncopies * exact_log2 (group_size) * group_size; + /* Uses a high and low interleave or shuffle operations for each + needed permute. */ + int nstmts = ncopies * ceil_log2 (group_size) * group_size; inside_cost = record_stmt_cost (body_cost_vec, nstmts, vec_perm, stmt_info, 0, vect_body); |