diff options
| author | Cong Hou <congh@google.com> | 2014-06-24 22:58:43 -0400 |
|---|---|---|
| committer | Cong Hou <congh@gcc.gnu.org> | 2014-06-24 22:58:43 -0400 |
| commit | 79d652a570805345efea0ee370c0f7f07eada78c (patch) | |
| tree | 84fbd0fced8d4e426b96dfd6edf4dfa423455a70 /gcc/tree.def | |
| parent | 22543f17af2e2f04ab57d7fc9bfed94da90345ba (diff) | |
tree-vect-patterns.c (vect_recog_sad_pattern): New function for SAD pattern recognition.
2014-06-24 Cong Hou <congh@google.com>
* tree-vect-patterns.c (vect_recog_sad_pattern): New function for SAD
pattern recognition.
(type_conversion_p): PROMOTION is true if it's a type promotion
conversion, and false otherwise. Return true if the given expression
is a type conversion one.
* tree-vectorizer.h: Adjust the number of patterns.
* tree.def: Add SAD_EXPR.
* optabs.def: Add sad_optab.
* cfgexpand.c (expand_debug_expr): Add SAD_EXPR case.
* expr.c (expand_expr_real_2): Likewise.
* gimple-pretty-print.c (dump_ternary_rhs): Likewise.
* gimple.c (get_gimple_rhs_num_ops): Likewise.
* optabs.c (optab_for_tree_code): Likewise.
* tree-cfg.c (estimate_operator_cost): Likewise.
* tree-ssa-operands.c (get_expr_operands): Likewise.
* tree-vect-loop.c (get_initial_def_for_reduction): Likewise.
* config/i386/sse.md: Add SSE2 and AVX2 expand for SAD.
* doc/generic.texi: Add document for SAD_EXPR.
* doc/md.texi: Add document for ssad and usad.
2014-06-24 Cong Hou <congh@google.com>
* gcc.dg/vect/vect-reduc-sad.c: New.
* lib/target-supports.exp (check_effective_target_vect_usad_char): New.
From-SVN: r211966
Diffstat (limited to 'gcc/tree.def')
| -rw-r--r-- | gcc/tree.def | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/gcc/tree.def b/gcc/tree.def index 299aacc06cc..84ffe93aa6f 100644 --- a/gcc/tree.def +++ b/gcc/tree.def @@ -1185,6 +1185,22 @@ DEFTREECODE (DOT_PROD_EXPR, "dot_prod_expr", tcc_expression, 3) with the second argument. */ DEFTREECODE (WIDEN_SUM_EXPR, "widen_sum_expr", tcc_binary, 2) +/* Widening sad (sum of absolute differences). + The first two arguments are of type t1 which should be integer. + The third argument and the result are of type t2, such that t2 is at least + twice the size of t1. Like DOT_PROD_EXPR, SAD_EXPR (arg1,arg2,arg3) is + equivalent to (note we don't have WIDEN_MINUS_EXPR now, but we assume its + behavior is similar to WIDEN_SUM_EXPR): + tmp = WIDEN_MINUS_EXPR (arg1, arg2) + tmp2 = ABS_EXPR (tmp) + arg3 = PLUS_EXPR (tmp2, arg3) + or: + tmp = WIDEN_MINUS_EXPR (arg1, arg2) + tmp2 = ABS_EXPR (tmp) + arg3 = WIDEN_SUM_EXPR (tmp2, arg3) + */ +DEFTREECODE (SAD_EXPR, "sad_expr", tcc_expression, 3) + /* Widening multiplication. The two arguments are of type t1. The result is of type t2, such that t2 is at least twice |