2 * Copyright © 2014 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
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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
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20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
24 #include <gtest/gtest.h>
27 #include "program/program.h"
33 class copy_propagation_test
: public ::testing::Test
{
37 struct brw_compiler
*compiler
;
38 struct brw_device_info
*devinfo
;
39 struct gl_context
*ctx
;
40 struct gl_shader_program
*shader_prog
;
41 struct brw_vertex_program
*vp
;
42 struct brw_vue_prog_data
*prog_data
;
46 class copy_propagation_vec4_visitor
: public vec4_visitor
49 copy_propagation_vec4_visitor(struct brw_compiler
*compiler
,
51 struct brw_vue_prog_data
*prog_data
)
52 : vec4_visitor(compiler
, NULL
, NULL
, prog_data
, shader
, NULL
,
53 false /* no_spills */, -1)
55 prog_data
->dispatch_mode
= DISPATCH_MODE_4X2_DUAL_OBJECT
;
59 virtual dst_reg
*make_reg_for_system_value(int location
,
60 const glsl_type
*type
)
62 unreachable("Not reached");
65 virtual void setup_payload()
67 unreachable("Not reached");
70 virtual void emit_prolog()
72 unreachable("Not reached");
75 virtual void emit_thread_end()
77 unreachable("Not reached");
80 virtual void emit_urb_write_header(int mrf
)
82 unreachable("Not reached");
85 virtual vec4_instruction
*emit_urb_write_opcode(bool complete
)
87 unreachable("Not reached");
92 void copy_propagation_test::SetUp()
94 ctx
= (struct gl_context
*)calloc(1, sizeof(*ctx
));
95 compiler
= (struct brw_compiler
*)calloc(1, sizeof(*compiler
));
96 devinfo
= (struct brw_device_info
*)calloc(1, sizeof(*devinfo
));
97 prog_data
= (struct brw_vue_prog_data
*)calloc(1, sizeof(*prog_data
));
98 compiler
->devinfo
= devinfo
;
100 vp
= ralloc(NULL
, struct brw_vertex_program
);
102 nir_shader
*shader
= nir_shader_create(NULL
, MESA_SHADER_VERTEX
, NULL
);
104 v
= new copy_propagation_vec4_visitor(compiler
, shader
, prog_data
);
106 _mesa_init_gl_program(&vp
->program
.Base
, GL_VERTEX_SHADER
, 0);
112 copy_propagation(vec4_visitor
*v
)
117 fprintf(stderr
, "instructions before:\n");
118 v
->dump_instructions();
122 v
->opt_copy_propagation();
125 fprintf(stderr
, "instructions after:\n");
126 v
->dump_instructions();
130 TEST_F(copy_propagation_test
, test_swizzle_swizzle
)
132 dst_reg a
= dst_reg(v
, glsl_type::vec4_type
);
133 dst_reg b
= dst_reg(v
, glsl_type::vec4_type
);
134 dst_reg c
= dst_reg(v
, glsl_type::vec4_type
);
136 v
->emit(v
->ADD(a
, src_reg(a
), src_reg(a
)));
138 v
->emit(v
->MOV(b
, swizzle(src_reg(a
), BRW_SWIZZLE4(SWIZZLE_Y
,
143 vec4_instruction
*test_mov
=
144 v
->MOV(c
, swizzle(src_reg(b
), BRW_SWIZZLE4(SWIZZLE_Y
,
152 EXPECT_EQ(test_mov
->src
[0].nr
, a
.nr
);
153 EXPECT_EQ(test_mov
->src
[0].swizzle
, BRW_SWIZZLE4(SWIZZLE_Z
,
159 TEST_F(copy_propagation_test
, test_swizzle_writemask
)
161 dst_reg a
= dst_reg(v
, glsl_type::vec4_type
);
162 dst_reg b
= dst_reg(v
, glsl_type::vec4_type
);
163 dst_reg c
= dst_reg(v
, glsl_type::vec4_type
);
165 v
->emit(v
->MOV(b
, swizzle(src_reg(a
), BRW_SWIZZLE4(SWIZZLE_X
,
170 v
->emit(v
->MOV(writemask(a
, WRITEMASK_XYZ
), brw_imm_f(1.0f
)));
172 vec4_instruction
*test_mov
=
173 v
->MOV(c
, swizzle(src_reg(b
), BRW_SWIZZLE4(SWIZZLE_W
,
181 /* should not copy propagate */
182 EXPECT_EQ(test_mov
->src
[0].nr
, b
.nr
);
183 EXPECT_EQ(test_mov
->src
[0].swizzle
, BRW_SWIZZLE4(SWIZZLE_W
,