2 * Copyright © 2015 Intel Corporation
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9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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21 * DEALINGS IN THE SOFTWARE.
23 #include <gtest/gtest.h>
25 #include "nir_builder.h"
27 class nir_cf_test
: public ::testing::Test
{
35 nir_cf_test::nir_cf_test()
37 glsl_type_singleton_init_or_ref();
39 static const nir_shader_compiler_options options
= { };
40 nir_builder_init_simple_shader(&b
, NULL
, MESA_SHADER_VERTEX
, &options
);
43 nir_cf_test::~nir_cf_test()
45 ralloc_free(b
.shader
);
46 glsl_type_singleton_decref();
49 TEST_F(nir_cf_test
, delete_break_in_loop
)
53 * while (...) { break; }
55 nir_loop
*loop
= nir_loop_create(b
.shader
);
56 nir_cf_node_insert(nir_after_cf_list(&b
.impl
->body
), &loop
->cf_node
);
58 b
.cursor
= nir_after_cf_list(&loop
->body
);
60 nir_jump_instr
*jump
= nir_jump_instr_create(b
.shader
, nir_jump_break
);
61 nir_builder_instr_insert(&b
, &jump
->instr
);
63 /* At this point, we should have:
81 nir_block
*block_0
= nir_start_block(b
.impl
);
82 nir_block
*block_1
= nir_loop_first_block(loop
);
83 nir_block
*block_2
= nir_cf_node_as_block(nir_cf_node_next(&loop
->cf_node
));
84 nir_block
*block_3
= b
.impl
->end_block
;
85 ASSERT_EQ(nir_cf_node_block
, block_0
->cf_node
.type
);
86 ASSERT_EQ(nir_cf_node_block
, block_1
->cf_node
.type
);
87 ASSERT_EQ(nir_cf_node_block
, block_2
->cf_node
.type
);
88 ASSERT_EQ(nir_cf_node_block
, block_3
->cf_node
.type
);
90 /* Verify the successors and predecessors. */
91 EXPECT_EQ(block_1
, block_0
->successors
[0]);
92 EXPECT_EQ(NULL
, block_0
->successors
[1]);
93 EXPECT_EQ(block_2
, block_1
->successors
[0]);
94 EXPECT_EQ(NULL
, block_1
->successors
[1]);
95 EXPECT_EQ(block_3
, block_2
->successors
[0]);
96 EXPECT_EQ(NULL
, block_2
->successors
[1]);
97 EXPECT_EQ(NULL
, block_3
->successors
[0]);
98 EXPECT_EQ(NULL
, block_3
->successors
[1]);
99 EXPECT_EQ(0, block_0
->predecessors
->entries
);
100 EXPECT_EQ(1, block_1
->predecessors
->entries
);
101 EXPECT_EQ(1, block_2
->predecessors
->entries
);
102 EXPECT_EQ(1, block_3
->predecessors
->entries
);
103 EXPECT_TRUE(_mesa_set_search(block_1
->predecessors
, block_0
));
104 EXPECT_TRUE(_mesa_set_search(block_2
->predecessors
, block_1
));
105 EXPECT_TRUE(_mesa_set_search(block_3
->predecessors
, block_2
));
107 nir_print_shader(b
.shader
, stderr
);
109 /* Now remove the break. */
110 nir_instr_remove(&jump
->instr
);
112 nir_print_shader(b
.shader
, stderr
);
114 /* At this point, we should have:
122 * // preds: block_0 block_1
131 * Re-verify the predecessors and successors.
133 EXPECT_EQ(block_1
, block_0
->successors
[0]);
134 EXPECT_EQ(NULL
, block_0
->successors
[1]);
135 EXPECT_EQ(block_1
, block_1
->successors
[0]); /* back to itself */
136 EXPECT_EQ(NULL
, block_1
->successors
[1]);
137 EXPECT_EQ(block_3
, block_2
->successors
[0]);
138 EXPECT_EQ(NULL
, block_2
->successors
[1]);
139 EXPECT_EQ(NULL
, block_3
->successors
[0]);
140 EXPECT_EQ(NULL
, block_3
->successors
[1]);
141 EXPECT_EQ(0, block_0
->predecessors
->entries
);
142 EXPECT_EQ(2, block_1
->predecessors
->entries
);
143 EXPECT_EQ(0, block_2
->predecessors
->entries
);
144 EXPECT_EQ(1, block_3
->predecessors
->entries
);
145 EXPECT_TRUE(_mesa_set_search(block_1
->predecessors
, block_0
));
146 EXPECT_TRUE(_mesa_set_search(block_1
->predecessors
, block_1
));
147 EXPECT_FALSE(_mesa_set_search(block_2
->predecessors
, block_1
));
148 EXPECT_TRUE(_mesa_set_search(block_3
->predecessors
, block_2
));
150 nir_metadata_require(b
.impl
, nir_metadata_dominance
);