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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 5564 | serge | 1 | /* |
| 2 | * Copyright © 2013 Intel Corporation |
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| 3 | * |
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| 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
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| 5 | * copy of this software and associated documentation files (the "Software"), |
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| 6 | * to deal in the Software without restriction, including without limitation |
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| 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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| 8 | * and/or sell copies of the Software, and to permit persons to whom the |
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| 9 | * Software is furnished to do so, subject to the following conditions: |
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| 10 | * |
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| 11 | * The above copyright notice and this permission notice (including the next |
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| 12 | * paragraph) shall be included in all copies or substantial portions of the |
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| 13 | * Software. |
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| 14 | * |
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| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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| 16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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| 17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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| 18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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| 19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
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| 20 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
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| 21 | * DEALINGS IN THE SOFTWARE. |
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| 22 | */ |
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| 23 | |||
| 24 | #include "ir.h" |
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| 25 | |||
| 26 | /** |
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| 27 | * Helper for checking equality when one instruction might be NULL, since you |
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| 28 | * can't access a's vtable in that case. |
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| 29 | */ |
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| 30 | static bool |
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| 31 | possibly_null_equals(const ir_instruction *a, const ir_instruction *b, |
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| 32 | enum ir_node_type ignore) |
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| 33 | { |
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| 34 | if (!a || !b) |
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| 35 | return !a && !b; |
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| 36 | |||
| 37 | return a->equals(b, ignore); |
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| 38 | } |
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| 39 | |||
| 40 | /** |
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| 41 | * The base equality function: Return not equal for anything we don't know |
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| 42 | * about. |
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| 43 | */ |
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| 44 | bool |
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| 45 | ir_instruction::equals(const ir_instruction *, enum ir_node_type) const |
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| 46 | { |
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| 47 | return false; |
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| 48 | } |
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| 49 | |||
| 50 | bool |
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| 51 | ir_constant::equals(const ir_instruction *ir, enum ir_node_type) const |
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| 52 | { |
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| 53 | const ir_constant *other = ir->as_constant(); |
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| 54 | if (!other) |
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| 55 | return false; |
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| 56 | |||
| 57 | if (type != other->type) |
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| 58 | return false; |
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| 59 | |||
| 60 | for (unsigned i = 0; i < type->components(); i++) { |
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| 61 | if (value.u[i] != other->value.u[i]) |
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| 62 | return false; |
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| 63 | } |
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| 64 | |||
| 65 | return true; |
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| 66 | } |
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| 67 | |||
| 68 | bool |
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| 69 | ir_dereference_variable::equals(const ir_instruction *ir, |
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| 70 | enum ir_node_type) const |
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| 71 | { |
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| 72 | const ir_dereference_variable *other = ir->as_dereference_variable(); |
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| 73 | if (!other) |
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| 74 | return false; |
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| 75 | |||
| 76 | return var == other->var; |
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| 77 | } |
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| 78 | |||
| 79 | bool |
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| 80 | ir_dereference_array::equals(const ir_instruction *ir, |
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| 81 | enum ir_node_type ignore) const |
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| 82 | { |
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| 83 | const ir_dereference_array *other = ir->as_dereference_array(); |
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| 84 | if (!other) |
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| 85 | return false; |
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| 86 | |||
| 87 | if (type != other->type) |
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| 88 | return false; |
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| 89 | |||
| 90 | if (!array->equals(other->array, ignore)) |
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| 91 | return false; |
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| 92 | |||
| 93 | if (!array_index->equals(other->array_index, ignore)) |
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| 94 | return false; |
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| 95 | |||
| 96 | return true; |
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| 97 | } |
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| 98 | |||
| 99 | bool |
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| 100 | ir_swizzle::equals(const ir_instruction *ir, |
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| 101 | enum ir_node_type ignore) const |
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| 102 | { |
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| 103 | const ir_swizzle *other = ir->as_swizzle(); |
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| 104 | if (!other) |
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| 105 | return false; |
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| 106 | |||
| 107 | if (type != other->type) |
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| 108 | return false; |
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| 109 | |||
| 110 | if (ignore != ir_type_swizzle) { |
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| 111 | if (mask.x != other->mask.x || |
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| 112 | mask.y != other->mask.y || |
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| 113 | mask.z != other->mask.z || |
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| 114 | mask.w != other->mask.w) { |
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| 115 | return false; |
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| 116 | } |
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| 117 | } |
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| 118 | |||
| 119 | return val->equals(other->val, ignore); |
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| 120 | } |
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| 121 | |||
| 122 | bool |
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| 123 | ir_texture::equals(const ir_instruction *ir, enum ir_node_type ignore) const |
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| 124 | { |
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| 125 | const ir_texture *other = ir->as_texture(); |
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| 126 | if (!other) |
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| 127 | return false; |
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| 128 | |||
| 129 | if (type != other->type) |
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| 130 | return false; |
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| 131 | |||
| 132 | if (op != other->op) |
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| 133 | return false; |
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| 134 | |||
| 135 | if (!possibly_null_equals(coordinate, other->coordinate, ignore)) |
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| 136 | return false; |
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| 137 | |||
| 138 | if (!possibly_null_equals(projector, other->projector, ignore)) |
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| 139 | return false; |
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| 140 | |||
| 141 | if (!possibly_null_equals(shadow_comparitor, other->shadow_comparitor, ignore)) |
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| 142 | return false; |
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| 143 | |||
| 144 | if (!possibly_null_equals(offset, other->offset, ignore)) |
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| 145 | return false; |
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| 146 | |||
| 147 | if (!sampler->equals(other->sampler, ignore)) |
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| 148 | return false; |
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| 149 | |||
| 150 | switch (op) { |
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| 151 | case ir_tex: |
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| 152 | case ir_lod: |
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| 153 | case ir_query_levels: |
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| 154 | break; |
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| 155 | case ir_txb: |
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| 156 | if (!lod_info.bias->equals(other->lod_info.bias, ignore)) |
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| 157 | return false; |
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| 158 | break; |
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| 159 | case ir_txl: |
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| 160 | case ir_txf: |
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| 161 | case ir_txs: |
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| 162 | if (!lod_info.lod->equals(other->lod_info.lod, ignore)) |
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| 163 | return false; |
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| 164 | break; |
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| 165 | case ir_txd: |
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| 166 | if (!lod_info.grad.dPdx->equals(other->lod_info.grad.dPdx, ignore) || |
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| 167 | !lod_info.grad.dPdy->equals(other->lod_info.grad.dPdy, ignore)) |
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| 168 | return false; |
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| 169 | break; |
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| 170 | case ir_txf_ms: |
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| 171 | if (!lod_info.sample_index->equals(other->lod_info.sample_index, ignore)) |
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| 172 | return false; |
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| 173 | break; |
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| 174 | case ir_tg4: |
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| 175 | if (!lod_info.component->equals(other->lod_info.component, ignore)) |
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| 176 | return false; |
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| 177 | break; |
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| 178 | default: |
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| 179 | assert(!"Unrecognized texture op"); |
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| 180 | } |
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| 181 | |||
| 182 | return true; |
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| 183 | } |
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| 184 | |||
| 185 | bool |
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| 186 | ir_expression::equals(const ir_instruction *ir, enum ir_node_type ignore) const |
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| 187 | { |
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| 188 | const ir_expression *other = ir->as_expression(); |
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| 189 | if (!other) |
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| 190 | return false; |
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| 191 | |||
| 192 | if (type != other->type) |
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| 193 | return false; |
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| 194 | |||
| 195 | if (operation != other->operation) |
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| 196 | return false; |
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| 197 | |||
| 198 | for (unsigned i = 0; i < get_num_operands(); i++) { |
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| 199 | if (!operands[i]->equals(other->operands[i], ignore)) |
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| 200 | return false; |
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| 201 | } |
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| 202 | |||
| 203 | return true; |
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| 204 | } |