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/*
* Copyright © 2018 Intel Corporation
*
* 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
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* 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 NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS 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.
*/
#ifndef _NIR_RANGE_ANALYSIS_H_
#define _NIR_RANGE_ANALYSIS_H_
enum PACKED ssa_ranges {
unknown = 0,
lt_zero,
le_zero,
gt_zero,
ge_zero,
ne_zero,
eq_zero,
last_range = eq_zero
};
struct ssa_result_range {
enum ssa_ranges range;
/** A floating-point value that can only have integer values. */
bool is_integral;
};
extern struct ssa_result_range
nir_analyze_range(struct hash_table *range_ht,
const nir_alu_instr *instr, unsigned src);
#endif /* _NIR_RANGE_ANALYSIS_H_ */
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