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/*
* Copyright 2013 Vadim Girlin <vadimgirlin@gmail.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* on the rights to use, copy, modify, merge, publish, distribute, sub
* license, and/or sell copies of the Software, and to permit persons to whom
* the Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
* USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* Authors:
* Vadim Girlin
*/
#ifndef SB_EXPR_H_
#define SB_EXPR_H_
namespace r600_sb {
inline float float_clamp(float v) {
return v < 0.0f ? 0.0f : (v > 1.0f ? 1.0f : v);
}
value* get_select_value_for_em(shader &sh, value *em);
void convert_predset_to_set(shader &sh, alu_node *a);
unsigned invert_setcc_condition(unsigned cc, bool &swap_args);
unsigned get_setcc_op(unsigned cc, unsigned cmp_type, bool int_dst);
unsigned get_predsetcc_op(unsigned cc, unsigned cmp_type);
unsigned get_killcc_op(unsigned cc, unsigned cmp_type);
unsigned get_cndcc_op(unsigned cc, unsigned cmp_type);
class expr_handler {
shader &sh;
value_table &vt;
public:
expr_handler(shader &sh);
bool equal(value *l, value *r);
bool defs_equal(value *l, value *r);
bool args_equal(const vvec &l, const vvec &r);
bool ops_equal(const alu_node *l, const alu_node *r);
bool ivars_equal(value *l, value *r);
value* get_const(const literal &l);
bool try_fold(value *v);
bool try_fold(node *n);
bool fold(node &n);
bool fold(container_node &n);
bool fold(alu_node &n);
bool fold(fetch_node &n);
bool fold(cf_node &n);
bool fold_setcc(alu_node &n);
bool fold_alu_op1(alu_node &n);
bool fold_alu_op2(alu_node &n);
bool fold_alu_op3(alu_node &n);
static void apply_alu_src_mod(const bc_alu &bc, unsigned src, literal &v);
static void apply_alu_dst_mod(const bc_alu &bc, literal &v);
void assign_source(value *dst, value *src);
static bool evaluate_condition(unsigned alu_cnd_flags, literal s1,
literal s2);
};
} // namespace r600_sb
#endif /* SB_EXPR_H_ */
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