| /* |
| * Copyright © 2016 Intel Corporation |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the next |
| * paragraph) shall be included in all copies or substantial portions of the |
| * Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
| * IN THE SOFTWARE. |
| */ |
| |
| #include <gtest/gtest.h> |
| #include "brw_fs.h" |
| #include "brw_cfg.h" |
| #include "program/program.h" |
| |
| using namespace brw; |
| |
| class copy_propagation_test : public ::testing::Test { |
| virtual void SetUp(); |
| |
| public: |
| struct brw_compiler *compiler; |
| struct gen_device_info *devinfo; |
| struct gl_context *ctx; |
| struct brw_wm_prog_data *prog_data; |
| struct gl_shader_program *shader_prog; |
| fs_visitor *v; |
| }; |
| |
| class copy_propagation_fs_visitor : public fs_visitor |
| { |
| public: |
| copy_propagation_fs_visitor(struct brw_compiler *compiler, |
| struct brw_wm_prog_data *prog_data, |
| nir_shader *shader) |
| : fs_visitor(compiler, NULL, NULL, NULL, |
| &prog_data->base, (struct gl_program *) NULL, |
| shader, 8, -1) {} |
| }; |
| |
| |
| void copy_propagation_test::SetUp() |
| { |
| ctx = (struct gl_context *)calloc(1, sizeof(*ctx)); |
| compiler = (struct brw_compiler *)calloc(1, sizeof(*compiler)); |
| devinfo = (struct gen_device_info *)calloc(1, sizeof(*devinfo)); |
| compiler->devinfo = devinfo; |
| |
| prog_data = ralloc(NULL, struct brw_wm_prog_data); |
| nir_shader *shader = |
| nir_shader_create(NULL, MESA_SHADER_FRAGMENT, NULL, NULL); |
| |
| v = new copy_propagation_fs_visitor(compiler, prog_data, shader); |
| |
| devinfo->gen = 4; |
| } |
| |
| static fs_inst * |
| instruction(bblock_t *block, int num) |
| { |
| fs_inst *inst = (fs_inst *)block->start(); |
| for (int i = 0; i < num; i++) { |
| inst = (fs_inst *)inst->next; |
| } |
| return inst; |
| } |
| |
| static bool |
| copy_propagation(fs_visitor *v) |
| { |
| const bool print = getenv("TEST_DEBUG"); |
| |
| if (print) { |
| fprintf(stderr, "= Before =\n"); |
| v->cfg->dump(v); |
| } |
| |
| bool ret = v->opt_copy_propagation(); |
| |
| if (print) { |
| fprintf(stderr, "\n= After =\n"); |
| v->cfg->dump(v); |
| } |
| |
| return ret; |
| } |
| |
| TEST_F(copy_propagation_test, basic) |
| { |
| const fs_builder &bld = v->bld; |
| fs_reg vgrf0 = v->vgrf(glsl_type::float_type); |
| fs_reg vgrf1 = v->vgrf(glsl_type::float_type); |
| fs_reg vgrf2 = v->vgrf(glsl_type::float_type); |
| fs_reg vgrf3 = v->vgrf(glsl_type::float_type); |
| bld.MOV(vgrf0, vgrf2); |
| bld.ADD(vgrf1, vgrf0, vgrf3); |
| |
| /* = Before = |
| * |
| * 0: mov(8) vgrf0 vgrf2 |
| * 1: add(8) vgrf1 vgrf0 vgrf3 |
| * |
| * = After = |
| * 0: mov(8) vgrf0 vgrf2 |
| * 1: add(8) vgrf1 vgrf2 vgrf3 |
| */ |
| |
| v->calculate_cfg(); |
| bblock_t *block0 = v->cfg->blocks[0]; |
| |
| EXPECT_EQ(0, block0->start_ip); |
| EXPECT_EQ(1, block0->end_ip); |
| |
| EXPECT_TRUE(copy_propagation(v)); |
| EXPECT_EQ(0, block0->start_ip); |
| EXPECT_EQ(1, block0->end_ip); |
| |
| fs_inst *mov = instruction(block0, 0); |
| EXPECT_EQ(BRW_OPCODE_MOV, mov->opcode); |
| EXPECT_TRUE(mov->dst.equals(vgrf0)); |
| EXPECT_TRUE(mov->src[0].equals(vgrf2)); |
| |
| fs_inst *add = instruction(block0, 1); |
| EXPECT_EQ(BRW_OPCODE_ADD, add->opcode); |
| EXPECT_TRUE(add->dst.equals(vgrf1)); |
| EXPECT_TRUE(add->src[0].equals(vgrf2)); |
| EXPECT_TRUE(add->src[1].equals(vgrf3)); |
| } |
| |
| TEST_F(copy_propagation_test, maxmax_sat_imm) |
| { |
| const fs_builder &bld = v->bld; |
| fs_reg vgrf0 = v->vgrf(glsl_type::float_type); |
| fs_reg vgrf1 = v->vgrf(glsl_type::float_type); |
| fs_reg vgrf2 = v->vgrf(glsl_type::float_type); |
| |
| static const struct { |
| enum brw_conditional_mod conditional_mod; |
| float immediate; |
| bool expected_result; |
| } test[] = { |
| /* conditional mod, imm, expected_result */ |
| { BRW_CONDITIONAL_GE , 0.1f, true }, |
| { BRW_CONDITIONAL_L , 0.1f, true }, |
| { BRW_CONDITIONAL_GE , 0.5f, true }, |
| { BRW_CONDITIONAL_L , 0.5f, true }, |
| { BRW_CONDITIONAL_GE , 0.9f, true }, |
| { BRW_CONDITIONAL_L , 0.9f, true }, |
| { BRW_CONDITIONAL_GE , -1.5f, false }, |
| { BRW_CONDITIONAL_L , -1.5f, false }, |
| { BRW_CONDITIONAL_GE , 1.5f, false }, |
| { BRW_CONDITIONAL_L , 1.5f, false }, |
| |
| { BRW_CONDITIONAL_NONE, 0.5f, false }, |
| { BRW_CONDITIONAL_Z , 0.5f, false }, |
| { BRW_CONDITIONAL_NZ , 0.5f, false }, |
| { BRW_CONDITIONAL_G , 0.5f, false }, |
| { BRW_CONDITIONAL_LE , 0.5f, false }, |
| { BRW_CONDITIONAL_R , 0.5f, false }, |
| { BRW_CONDITIONAL_O , 0.5f, false }, |
| { BRW_CONDITIONAL_U , 0.5f, false }, |
| }; |
| |
| for (unsigned i = 0; i < sizeof(test) / sizeof(test[0]); i++) { |
| fs_inst *mov = set_saturate(true, bld.MOV(vgrf0, vgrf1)); |
| fs_inst *sel = set_condmod(test[i].conditional_mod, |
| bld.SEL(vgrf2, vgrf0, |
| brw_imm_f(test[i].immediate))); |
| |
| v->calculate_cfg(); |
| |
| bblock_t *block0 = v->cfg->blocks[0]; |
| |
| EXPECT_EQ(0, block0->start_ip); |
| EXPECT_EQ(1, block0->end_ip); |
| |
| EXPECT_EQ(test[i].expected_result, copy_propagation(v)); |
| EXPECT_EQ(0, block0->start_ip); |
| EXPECT_EQ(1, block0->end_ip); |
| |
| EXPECT_EQ(BRW_OPCODE_MOV, mov->opcode); |
| EXPECT_TRUE(mov->saturate); |
| EXPECT_TRUE(mov->dst.equals(vgrf0)); |
| EXPECT_TRUE(mov->src[0].equals(vgrf1)); |
| |
| EXPECT_EQ(BRW_OPCODE_SEL, sel->opcode); |
| EXPECT_EQ(test[i].conditional_mod, sel->conditional_mod); |
| EXPECT_EQ(test[i].expected_result, sel->saturate); |
| EXPECT_TRUE(sel->dst.equals(vgrf2)); |
| if (test[i].expected_result) { |
| EXPECT_TRUE(sel->src[0].equals(vgrf1)); |
| } else { |
| EXPECT_TRUE(sel->src[0].equals(vgrf0)); |
| } |
| EXPECT_TRUE(sel->src[1].equals(brw_imm_f(test[i].immediate))); |
| |
| delete v->cfg; |
| v->cfg = NULL; |
| } |
| } |
