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11 * The above copyright notice and this permission notice (including the next
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16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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24 #include <gtest/gtest.h>
32 class copy_propagation_test
: public ::testing::Test
{
36 struct brw_context
*brw
;
37 struct gl_context
*ctx
;
38 struct gl_shader_program
*shader_prog
;
39 struct brw_vertex_program
*vp
;
43 class copy_propagation_vec4_visitor
: public vec4_visitor
46 copy_propagation_vec4_visitor(struct brw_context
*brw
,
47 struct gl_shader_program
*shader_prog
)
48 : vec4_visitor(brw
, NULL
, NULL
, NULL
, NULL
, shader_prog
,
49 MESA_SHADER_VERTEX
, NULL
,
50 false /* no_spills */,
51 ST_NONE
, ST_NONE
, ST_NONE
)
56 virtual dst_reg
*make_reg_for_system_value(ir_variable
*ir
)
58 unreachable("Not reached");
61 virtual void setup_payload()
63 unreachable("Not reached");
66 virtual void emit_prolog()
68 unreachable("Not reached");
71 virtual void emit_program_code()
73 unreachable("Not reached");
76 virtual void emit_thread_end()
78 unreachable("Not reached");
81 virtual void emit_urb_write_header(int mrf
)
83 unreachable("Not reached");
86 virtual vec4_instruction
*emit_urb_write_opcode(bool complete
)
88 unreachable("Not reached");
93 void copy_propagation_test::SetUp()
95 brw
= (struct brw_context
*)calloc(1, sizeof(*brw
));
98 vp
= ralloc(NULL
, struct brw_vertex_program
);
100 shader_prog
= ralloc(NULL
, struct gl_shader_program
);
102 v
= new copy_propagation_vec4_visitor(brw
, shader_prog
);
104 _mesa_init_vertex_program(ctx
, &vp
->program
, GL_VERTEX_SHADER
, 0);
110 copy_propagation(vec4_visitor
*v
)
115 fprintf(stderr
, "instructions before:\n");
116 v
->dump_instructions();
120 v
->opt_copy_propagation();
123 fprintf(stderr
, "instructions after:\n");
124 v
->dump_instructions();
128 TEST_F(copy_propagation_test
, test_swizzle_swizzle
)
130 dst_reg a
= dst_reg(v
, glsl_type::vec4_type
);
131 dst_reg b
= dst_reg(v
, glsl_type::vec4_type
);
132 dst_reg c
= dst_reg(v
, glsl_type::vec4_type
);
134 v
->emit(v
->ADD(a
, src_reg(a
), src_reg(a
)));
136 v
->emit(v
->MOV(b
, swizzle(src_reg(a
), BRW_SWIZZLE4(SWIZZLE_Y
,
141 vec4_instruction
*test_mov
=
142 v
->MOV(c
, swizzle(src_reg(b
), BRW_SWIZZLE4(SWIZZLE_Y
,
150 EXPECT_EQ(test_mov
->src
[0].reg
, a
.reg
);
151 EXPECT_EQ(test_mov
->src
[0].swizzle
, BRW_SWIZZLE4(SWIZZLE_Z
,
157 TEST_F(copy_propagation_test
, test_swizzle_writemask
)
159 dst_reg a
= dst_reg(v
, glsl_type::vec4_type
);
160 dst_reg b
= dst_reg(v
, glsl_type::vec4_type
);
161 dst_reg c
= dst_reg(v
, glsl_type::vec4_type
);
163 v
->emit(v
->MOV(b
, swizzle(src_reg(a
), BRW_SWIZZLE4(SWIZZLE_X
,
168 v
->emit(v
->MOV(writemask(a
, WRITEMASK_XYZ
), src_reg(1.0f
)));
170 vec4_instruction
*test_mov
=
171 v
->MOV(c
, swizzle(src_reg(b
), BRW_SWIZZLE4(SWIZZLE_W
,
179 /* should not copy propagate */
180 EXPECT_EQ(test_mov
->src
[0].reg
, b
.reg
);
181 EXPECT_EQ(test_mov
->src
[0].swizzle
, BRW_SWIZZLE4(SWIZZLE_W
,