64 lines
1.9 KiB
C
64 lines
1.9 KiB
C
/*
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* Copyright © 2018 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#ifndef _NIR_RANGE_ANALYSIS_H_
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#define _NIR_RANGE_ANALYSIS_H_
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enum PACKED ssa_ranges {
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unknown = 0,
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lt_zero,
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le_zero,
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gt_zero,
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ge_zero,
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ne_zero,
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eq_zero,
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last_range = eq_zero
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};
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struct ssa_result_range {
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enum ssa_ranges range;
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/** A floating-point value that can only have integer values. */
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bool is_integral;
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/** A floating-point value that cannot be NaN. */
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bool is_a_number;
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/** Is the value known to be a finite number? */
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bool is_finite;
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};
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#ifdef __cplusplus
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extern "C" {
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#endif
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extern struct ssa_result_range
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nir_analyze_range(struct hash_table *range_ht,
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const nir_alu_instr *instr, unsigned src);
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uint64_t nir_ssa_def_bits_used(const nir_ssa_def *def);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _NIR_RANGE_ANALYSIS_H_ */
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