diff options
Diffstat (limited to 'src/mesa')
| -rw-r--r-- | src/mesa/drivers/dri/i965/Makefile.am | 7 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/test_vec4_cmod_propagation.cpp | 822 |
2 files changed, 829 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/Makefile.am b/src/mesa/drivers/dri/i965/Makefile.am index 04b3f9cc8ce..9d003e48bd8 100644 --- a/src/mesa/drivers/dri/i965/Makefile.am +++ b/src/mesa/drivers/dri/i965/Makefile.am @@ -59,6 +59,7 @@ TESTS = \ test_fs_saturate_propagation \ test_eu_compact \ test_vf_float_conversions \ + test_vec4_cmod_propagation \ test_vec4_copy_propagation \ test_vec4_register_coalesce @@ -94,6 +95,12 @@ test_vec4_copy_propagation_LDADD = \ $(top_builddir)/src/gtest/libgtest.la \ $(TEST_LIBS) +test_vec4_cmod_propagation_SOURCES = \ + test_vec4_cmod_propagation.cpp +test_vec4_cmod_propagation_LDADD = \ + $(top_builddir)/src/gtest/libgtest.la \ + $(TEST_LIBS) + test_eu_compact_SOURCES = \ test_eu_compact.c nodist_EXTRA_test_eu_compact_SOURCES = dummy.cpp diff --git a/src/mesa/drivers/dri/i965/test_vec4_cmod_propagation.cpp b/src/mesa/drivers/dri/i965/test_vec4_cmod_propagation.cpp new file mode 100644 index 00000000000..5ca697a0b21 --- /dev/null +++ b/src/mesa/drivers/dri/i965/test_vec4_cmod_propagation.cpp @@ -0,0 +1,822 @@ +/* + * Copyright © 2015 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. + * + * Based on test_fs_cmod_propagation.cpp + */ + +#include <gtest/gtest.h> +#include "brw_vec4.h" +#include "brw_vec4_builder.h" +#include "brw_cfg.h" +#include "program/program.h" + +using namespace brw; + +class cmod_propagation_test : public ::testing::Test { + virtual void SetUp(); + +public: + struct brw_compiler *compiler; + struct brw_device_info *devinfo; + struct gl_context *ctx; + struct gl_shader_program *shader_prog; + struct brw_vertex_program *vp; + vec4_visitor *v; +}; + +class cmod_propagation_vec4_visitor : public vec4_visitor +{ +public: + cmod_propagation_vec4_visitor(struct brw_compiler *compiler, + nir_shader *shader) + : vec4_visitor(compiler, NULL, NULL, NULL, shader, NULL, + false, -1) {} + +protected: + /* Dummy implementation for pure virtual methods */ + virtual dst_reg *make_reg_for_system_value(int location, + const glsl_type *type) + { + unreachable("Not reached"); + } + + virtual void setup_payload() + { + unreachable("Not reached"); + } + + virtual void emit_prolog() + { + unreachable("Not reached"); + } + + virtual void emit_program_code() + { + unreachable("Not reached"); + } + + virtual void emit_thread_end() + { + unreachable("Not reached"); + } + + virtual void emit_urb_write_header(int mrf) + { + unreachable("Not reached"); + } + + virtual vec4_instruction *emit_urb_write_opcode(bool complete) + { + unreachable("Not reached"); + } +}; + + +void cmod_propagation_test::SetUp() +{ + ctx = (struct gl_context *)calloc(1, sizeof(*ctx)); + compiler = (struct brw_compiler *)calloc(1, sizeof(*compiler)); + devinfo = (struct brw_device_info *)calloc(1, sizeof(*devinfo)); + compiler->devinfo = devinfo; + + vp = ralloc(NULL, struct brw_vertex_program); + + nir_shader *shader = nir_shader_create(NULL, MESA_SHADER_VERTEX, NULL); + + v = new cmod_propagation_vec4_visitor(compiler, shader); + + _mesa_init_gl_program(&vp->program.Base, GL_VERTEX_SHADER, 0); + + devinfo->gen = 4; +} + +static vec4_instruction * +instruction(bblock_t *block, int num) +{ + vec4_instruction *inst = (vec4_instruction *)block->start(); + for (int i = 0; i < num; i++) { + inst = (vec4_instruction *)inst->next; + } + return inst; +} + +static bool +cmod_propagation(vec4_visitor *v) +{ + const bool print = false; + + if (print) { + fprintf(stderr, "= Before =\n"); + v->dump_instructions(); + } + + bool ret = v->opt_cmod_propagation(); + + if (print) { + fprintf(stderr, "\n= After =\n"); + v->dump_instructions(); + } + + return ret; +} + +TEST_F(cmod_propagation_test, basic) +{ + const vec4_builder bld = vec4_builder(v).at_end(); + dst_reg dest = dst_reg(v, glsl_type::float_type); + src_reg src0 = src_reg(v, glsl_type::float_type); + src_reg src1 = src_reg(v, glsl_type::float_type); + src_reg zero(0.0f); + dst_reg dest_null = bld.null_reg_f(); + dest_null.writemask = WRITEMASK_X; + + bld.ADD(dest, src0, src1); + bld.CMP(dest_null, src_reg(dest), zero, BRW_CONDITIONAL_GE); + + /* = Before = + * + * 0: add dest.x src0.xxxx src1.xxxx + * 1: cmp.ge.f0 null.x dest.xxxx 0.0f + * + * = After = + * 0: add.ge.f0 dest.x src0.xxxx src1.xxxx + */ + + v->calculate_cfg(); + bblock_t *block0 = v->cfg->blocks[0]; + + EXPECT_EQ(0, block0->start_ip); + EXPECT_EQ(1, block0->end_ip); + + EXPECT_TRUE(cmod_propagation(v)); + + ASSERT_EQ(0, block0->start_ip); + ASSERT_EQ(0, block0->end_ip); + EXPECT_EQ(BRW_OPCODE_ADD, instruction(block0, 0)->opcode); + EXPECT_EQ(BRW_CONDITIONAL_GE, instruction(block0, 0)->conditional_mod); +} + +TEST_F(cmod_propagation_test, basic_different_dst_writemask) +{ + const vec4_builder bld = vec4_builder(v).at_end(); + dst_reg dest = dst_reg(v, glsl_type::float_type); + src_reg src0 = src_reg(v, glsl_type::float_type); + src_reg src1 = src_reg(v, glsl_type::float_type); + src_reg zero(0.0f); + dst_reg dest_null = bld.null_reg_f(); + + bld.ADD(dest, src0, src1); + bld.CMP(dest_null, src_reg(dest), zero, BRW_CONDITIONAL_GE); + + /* = Before = + * + * 0: add dest.x src0 src1 + * 1: cmp.ge.f0 null.xyzw dest 0.0f + * + * = After = + * (no changes) + */ + + v->calculate_cfg(); + bblock_t *block0 = v->cfg->blocks[0]; + + EXPECT_EQ(0, block0->start_ip); + EXPECT_EQ(1, block0->end_ip); + + EXPECT_FALSE(cmod_propagation(v)); + + ASSERT_EQ(0, block0->start_ip); + ASSERT_EQ(1, block0->end_ip); + EXPECT_EQ(BRW_OPCODE_ADD, instruction(block0, 0)->opcode); + EXPECT_EQ(BRW_CONDITIONAL_NONE, instruction(block0, 0)->conditional_mod); + EXPECT_EQ(BRW_OPCODE_CMP, instruction(block0, 1)->opcode); + EXPECT_EQ(BRW_CONDITIONAL_GE, instruction(block0, 1)->conditional_mod); +} + +TEST_F(cmod_propagation_test, andz_one) +{ + const vec4_builder bld = vec4_builder(v).at_end(); + dst_reg dest = dst_reg(v, glsl_type::int_type); + src_reg src0 = src_reg(v, glsl_type::float_type); + src_reg zero(0.0f); + src_reg one(1); + + bld.CMP(retype(dest, BRW_REGISTER_TYPE_F), src0, zero, BRW_CONDITIONAL_L); + set_condmod(BRW_CONDITIONAL_Z, + bld.AND(bld.null_reg_d(), src_reg(dest), one)); + + /* = Before = + * 0: cmp.l.f0 dest:F src0:F 0F + * 1: and.z.f0 null:D dest:D 1D + * + * = After = + * (no changes) + */ + + v->calculate_cfg(); + bblock_t *block0 = v->cfg->blocks[0]; + + EXPECT_EQ(0, block0->start_ip); + EXPECT_EQ(1, block0->end_ip); + + EXPECT_FALSE(cmod_propagation(v)); + + ASSERT_EQ(0, block0->start_ip); + ASSERT_EQ(1, block0->end_ip); + EXPECT_EQ(BRW_OPCODE_CMP, instruction(block0, 0)->opcode); + EXPECT_EQ(BRW_CONDITIONAL_L, instruction(block0, 0)->conditional_mod); + EXPECT_EQ(BRW_OPCODE_AND, instruction(block0, 1)->opcode); + EXPECT_EQ(BRW_CONDITIONAL_EQ, instruction(block0, 1)->conditional_mod); +} + +TEST_F(cmod_propagation_test, non_cmod_instruction) +{ + const vec4_builder bld = vec4_builder(v).at_end(); + dst_reg dest = dst_reg(v, glsl_type::uint_type); + src_reg src0 = src_reg(v, glsl_type::uint_type); + src_reg zero(0u); + bld.FBL(dest, src0); + bld.CMP(bld.null_reg_ud(), src_reg(dest), zero, BRW_CONDITIONAL_GE); + + /* = Before = + * + * 0: fbl dest src0 + * 1: cmp.ge.f0 null dest 0u + * + * = After = + * (no changes) + */ + + v->calculate_cfg(); + bblock_t *block0 = v->cfg->blocks[0]; + + EXPECT_EQ(0, block0->start_ip); + EXPECT_EQ(1, block0->end_ip); + + EXPECT_FALSE(cmod_propagation(v)); + + ASSERT_EQ(0, block0->start_ip); + ASSERT_EQ(1, block0->end_ip); + EXPECT_EQ(BRW_OPCODE_FBL, instruction(block0, 0)->opcode); + EXPECT_EQ(BRW_OPCODE_CMP, instruction(block0, 1)->opcode); + EXPECT_EQ(BRW_CONDITIONAL_GE, instruction(block0, 1)->conditional_mod); +} + +TEST_F(cmod_propagation_test, intervening_flag_write) +{ + const vec4_builder bld = vec4_builder(v).at_end(); + dst_reg dest = dst_reg(v, glsl_type::float_type); + src_reg src0 = src_reg(v, glsl_type::float_type); + src_reg src1 = src_reg(v, glsl_type::float_type); + src_reg src2 = src_reg(v, glsl_type::float_type); + src_reg zero(0.0f); + bld.ADD(dest, src0, src1); + bld.CMP(bld.null_reg_f(), src2, zero, BRW_CONDITIONAL_GE); + bld.CMP(bld.null_reg_f(), src_reg(dest), zero, BRW_CONDITIONAL_GE); + + /* = Before = + * + * 0: add dest src0 src1 + * 1: cmp.ge.f0 null src2 0.0f + * 2: cmp.ge.f0 null dest 0.0f + * + * = After = + * (no changes) + */ + + v->calculate_cfg(); + bblock_t *block0 = v->cfg->blocks[0]; + + EXPECT_EQ(0, block0->start_ip); + EXPECT_EQ(2, block0->end_ip); + + EXPECT_FALSE(cmod_propagation(v)); + + ASSERT_EQ(0, block0->start_ip); + ASSERT_EQ(2, block0->end_ip); + EXPECT_EQ(BRW_OPCODE_ADD, instruction(block0, 0)->opcode); + EXPECT_EQ(BRW_OPCODE_CMP, instruction(block0, 1)->opcode); + EXPECT_EQ(BRW_CONDITIONAL_GE, instruction(block0, 1)->conditional_mod); + EXPECT_EQ(BRW_OPCODE_CMP, instruction(block0, 2)->opcode); + EXPECT_EQ(BRW_CONDITIONAL_GE, instruction(block0, 2)->conditional_mod); +} + +TEST_F(cmod_propagation_test, intervening_flag_read) +{ + const vec4_builder bld = vec4_builder(v).at_end(); + dst_reg dest0 = dst_reg(v, glsl_type::float_type); + dst_reg dest1 = dst_reg(v, glsl_type::float_type); + src_reg src0 = src_reg(v, glsl_type::float_type); + src_reg src1 = src_reg(v, glsl_type::float_type); + src_reg src2 = src_reg(v, glsl_type::float_type); + src_reg zero(0.0f); + bld.ADD(dest0, src0, src1); + set_predicate(BRW_PREDICATE_NORMAL, bld.SEL(dest1, src2, zero)); + bld.CMP(bld.null_reg_f(), src_reg(dest0), zero, BRW_CONDITIONAL_GE); + + /* = Before = + * + * 0: add dest0 src0 src1 + * 1: (+f0) sel dest1 src2 0.0f + * 2: cmp.ge.f0 null dest0 0.0f + * + * = After = + * (no changes) + */ + + v->calculate_cfg(); + bblock_t *block0 = v->cfg->blocks[0]; + + EXPECT_EQ(0, block0->start_ip); + EXPECT_EQ(2, block0->end_ip); + + EXPECT_FALSE(cmod_propagation(v)); + + ASSERT_EQ(0, block0->start_ip); + ASSERT_EQ(2, block0->end_ip); + EXPECT_EQ(BRW_OPCODE_ADD, instruction(block0, 0)->opcode); + EXPECT_EQ(BRW_OPCODE_SEL, instruction(block0, 1)->opcode); + EXPECT_EQ(BRW_PREDICATE_NORMAL, instruction(block0, 1)->predicate); + EXPECT_EQ(BRW_OPCODE_CMP, instruction(block0, 2)->opcode); + EXPECT_EQ(BRW_CONDITIONAL_GE, instruction(block0, 2)->conditional_mod); +} + +TEST_F(cmod_propagation_test, intervening_dest_write) +{ + const vec4_builder bld = vec4_builder(v).at_end(); + dst_reg dest = dst_reg(v, glsl_type::vec4_type); + src_reg src0 = src_reg(v, glsl_type::float_type); + src_reg src1 = src_reg(v, glsl_type::float_type); + src_reg src2 = src_reg(v, glsl_type::vec2_type); + src_reg zero(0.0f); + bld.ADD(offset(dest, 2), src0, src1); + bld.emit(SHADER_OPCODE_TEX, dest, src2) + ->regs_written = 4; + bld.CMP(bld.null_reg_f(), offset(src_reg(dest), 2), zero, BRW_CONDITIONAL_GE); + + /* = Before = + * + * 0: add dest+2 src0 src1 + * 1: tex rlen 4 dest+0 src2 + * 2: cmp.ge.f0 null dest+2 0.0f + * + * = After = + * (no changes) + */ + + v->calculate_cfg(); + bblock_t *block0 = v->cfg->blocks[0]; + + EXPECT_EQ(0, block0->start_ip); + EXPECT_EQ(2, block0->end_ip); + + EXPECT_FALSE(cmod_propagation(v)); + + ASSERT_EQ(0, block0->start_ip); + ASSERT_EQ(2, block0->end_ip); + EXPECT_EQ(BRW_OPCODE_ADD, instruction(block0, 0)->opcode); + EXPECT_EQ(BRW_CONDITIONAL_NONE, instruction(block0, 0)->conditional_mod); + EXPECT_EQ(SHADER_OPCODE_TEX, instruction(block0, 1)->opcode); + EXPECT_EQ(BRW_CONDITIONAL_NONE, instruction(block0, 0)->conditional_mod); + EXPECT_EQ(BRW_OPCODE_CMP, instruction(block0, 2)->opcode); + EXPECT_EQ(BRW_CONDITIONAL_GE, instruction(block0, 2)->conditional_mod); +} + +TEST_F(cmod_propagation_test, intervening_flag_read_same_value) +{ + const vec4_builder bld = vec4_builder(v).at_end(); + dst_reg dest0 = dst_reg(v, glsl_type::float_type); + dst_reg dest1 = dst_reg(v, glsl_type::float_type); + src_reg src0 = src_reg(v, glsl_type::float_type); + src_reg src1 = src_reg(v, glsl_type::float_type); + src_reg src2 = src_reg(v, glsl_type::float_type); + src_reg zero(0.0f); + dst_reg dest_null = bld.null_reg_f(); + dest_null.writemask = WRITEMASK_X; + + set_condmod(BRW_CONDITIONAL_GE, bld.ADD(dest0, src0, src1)); + set_predicate(BRW_PREDICATE_NORMAL, bld.SEL(dest1, src2, zero)); + bld.CMP(dest_null, src_reg(dest0), zero, BRW_CONDITIONAL_GE); + + /* = Before = + * + * 0: add.ge.f0 dest0 src0 src1 + * 1: (+f0) sel dest1 src2 0.0f + * 2: cmp.ge.f0 null.x dest0 0.0f + * + * = After = + * 0: add.ge.f0 dest0 src0 src1 + * 1: (+f0) sel dest1 src2 0.0f + */ + + v->calculate_cfg(); + bblock_t *block0 = v->cfg->blocks[0]; + + EXPECT_EQ(0, block0->start_ip); + EXPECT_EQ(2, block0->end_ip); + + EXPECT_TRUE(cmod_propagation(v)); + ASSERT_EQ(0, block0->start_ip); + ASSERT_EQ(1, block0->end_ip); + EXPECT_EQ(BRW_OPCODE_ADD, instruction(block0, 0)->opcode); + EXPECT_EQ(BRW_CONDITIONAL_GE, instruction(block0, 0)->conditional_mod); + EXPECT_EQ(BRW_OPCODE_SEL, instruction(block0, 1)->opcode); + EXPECT_EQ(BRW_PREDICATE_NORMAL, instruction(block0, 1)->predicate); +} + +TEST_F(cmod_propagation_test, negate) +{ + const vec4_builder bld = vec4_builder(v).at_end(); + dst_reg dest = dst_reg(v, glsl_type::float_type); + src_reg src0 = src_reg(v, glsl_type::float_type); + src_reg src1 = src_reg(v, glsl_type::float_type); + src_reg zero(0.0f); + bld.ADD(dest, src0, src1); + src_reg tmp_src = src_reg(dest); + tmp_src.negate = true; + dst_reg dest_null = bld.null_reg_f(); + dest_null.writemask = WRITEMASK_X; + bld.CMP(dest_null, tmp_src, zero, BRW_CONDITIONAL_GE); + + /* = Before = + * + * 0: add dest src0 src1 + * 1: cmp.ge.f0 null.x -dest 0.0f + * + * = After = + * 0: add.le.f0 dest src0 src1 + */ + + v->calculate_cfg(); + bblock_t *block0 = v->cfg->blocks[0]; + + EXPECT_EQ(0, block0->start_ip); + EXPECT_EQ(1, block0->end_ip); + + EXPECT_TRUE(cmod_propagation(v)); + EXPECT_EQ(0, block0->start_ip); + EXPECT_EQ(0, block0->end_ip); + EXPECT_EQ(BRW_OPCODE_ADD, instruction(block0, 0)->opcode); + EXPECT_EQ(BRW_CONDITIONAL_LE, instruction(block0, 0)->conditional_mod); +} + +TEST_F(cmod_propagation_test, movnz) +{ + const vec4_builder bld = vec4_builder(v).at_end(); + dst_reg dest = dst_reg(v, glsl_type::float_type); + src_reg src0 = src_reg(v, glsl_type::float_type); + src_reg src1 = src_reg(v, glsl_type::float_type); + dst_reg dest_null = bld.null_reg_f(); + dest_null.writemask = WRITEMASK_X; + + bld.CMP(dest, src0, src1, BRW_CONDITIONAL_L); + set_condmod(BRW_CONDITIONAL_NZ, + bld.MOV(dest_null, src_reg(dest))); + + /* = Before = + * + * 0: cmp.l.f0 dest:F src0:F src1:F + * 1: mov.nz.f0 null.x dest:F + * + * = After = + * 0: cmp.l.f0 dest src0:F src1:F + */ + + v->calculate_cfg(); + bblock_t *block0 = v->cfg->blocks[0]; + + EXPECT_EQ(0, block0->start_ip); + EXPECT_EQ(1, block0->end_ip); + + EXPECT_TRUE(cmod_propagation(v)); + + ASSERT_EQ(0, block0->start_ip); + ASSERT_EQ(0, block0->end_ip); + EXPECT_EQ(BRW_OPCODE_CMP, instruction(block0, 0)->opcode); + EXPECT_EQ(BRW_CONDITIONAL_L, instruction(block0, 0)->conditional_mod); +} + +TEST_F(cmod_propagation_test, different_types_cmod_with_zero) +{ + const vec4_builder bld = vec4_builder(v).at_end(); + dst_reg dest = dst_reg(v, glsl_type::int_type); + src_reg src0 = src_reg(v, glsl_type::int_type); + src_reg src1 = src_reg(v, glsl_type::int_type); + src_reg zero(0.0f); + bld.ADD(dest, src0, src1); + bld.CMP(bld.null_reg_f(), retype(src_reg(dest), BRW_REGISTER_TYPE_F), zero, + BRW_CONDITIONAL_GE); + + /* = Before = + * + * 0: add dest:D src0:D src1:D + * 1: cmp.ge.f0 null:F dest:F 0.0f + * + * = After = + * (no changes) + */ + + v->calculate_cfg(); + bblock_t *block0 = v->cfg->blocks[0]; + + EXPECT_EQ(0, block0->start_ip); + EXPECT_EQ(1, block0->end_ip); + + EXPECT_FALSE(cmod_propagation(v)); + + ASSERT_EQ(0, block0->start_ip); + ASSERT_EQ(1, block0->end_ip); + EXPECT_EQ(BRW_OPCODE_ADD, instruction(block0, 0)->opcode); + EXPECT_EQ(BRW_OPCODE_CMP, instruction(block0, 1)->opcode); + EXPECT_EQ(BRW_CONDITIONAL_GE, instruction(block0, 1)->conditional_mod); +} + +TEST_F(cmod_propagation_test, andnz_non_one) +{ + const vec4_builder bld = vec4_builder(v).at_end(); + dst_reg dest = dst_reg(v, glsl_type::int_type); + src_reg src0 = src_reg(v, glsl_type::float_type); + src_reg zero(0.0f); + src_reg nonone(38); + + bld.CMP(retype(dest, BRW_REGISTER_TYPE_F), src0, zero, BRW_CONDITIONAL_L); + set_condmod(BRW_CONDITIONAL_NZ, + bld.AND(bld.null_reg_d(), src_reg(dest), nonone)); + + /* = Before = + * 0: cmp.l.f0 dest:F src0:F 0F + * 1: and.nz.f0 null:D dest:D 38D + * + * = After = + * (no changes) + */ + + v->calculate_cfg(); + bblock_t *block0 = v->cfg->blocks[0]; + + EXPECT_EQ(0, block0->start_ip); + EXPECT_EQ(1, block0->end_ip); + + EXPECT_FALSE(cmod_propagation(v)); + + ASSERT_EQ(0, block0->start_ip); + ASSERT_EQ(1, block0->end_ip); + EXPECT_EQ(BRW_OPCODE_CMP, instruction(block0, 0)->opcode); + EXPECT_EQ(BRW_CONDITIONAL_L, instruction(block0, 0)->conditional_mod); + EXPECT_EQ(BRW_OPCODE_AND, instruction(block0, 1)->opcode); + EXPECT_EQ(BRW_CONDITIONAL_NZ, instruction(block0, 1)->conditional_mod); +} + +/* Note that basic is using glsl_type:float types, while this one is using + * glsl_type::vec4 */ +TEST_F(cmod_propagation_test, basic_vec4) +{ + const vec4_builder bld = vec4_builder(v).at_end(); + dst_reg dest = dst_reg(v, glsl_type::vec4_type); + src_reg src0 = src_reg(v, glsl_type::vec4_type); + src_reg src1 = src_reg(v, glsl_type::vec4_type); + src_reg zero(0.0f); + + bld.MUL(dest, src0, src1); + bld.CMP(bld.null_reg_f(), src_reg(dest), zero, BRW_CONDITIONAL_NZ); + + /* = Before = + * 0: mul dest.xyzw src0.xyzw src1.xyzw + * 1: cmp.nz.f0.0 null.xyzw dest.xyzw 0.0f + * + * = After = + * 0: mul.nz.f0.0 dest.xyzw src0.xyzw src1.xyzw + */ + + v->calculate_cfg(); + bblock_t *block0 = v->cfg->blocks[0]; + + EXPECT_EQ(0, block0->start_ip); + EXPECT_EQ(1, block0->end_ip); + + EXPECT_TRUE(cmod_propagation(v)); + + ASSERT_EQ(0, block0->start_ip); + ASSERT_EQ(0, block0->end_ip); + EXPECT_EQ(BRW_OPCODE_MUL, instruction(block0, 0)->opcode); + EXPECT_EQ(BRW_CONDITIONAL_NZ, instruction(block0, 0)->conditional_mod); +} + +TEST_F(cmod_propagation_test, basic_vec4_different_dst_writemask) +{ + const vec4_builder bld = vec4_builder(v).at_end(); + dst_reg dest = dst_reg(v, glsl_type::vec4_type); + dest.writemask = WRITEMASK_X; + src_reg src0 = src_reg(v, glsl_type::vec4_type); + src_reg src1 = src_reg(v, glsl_type::vec4_type); + src_reg zero(0.0f); + dst_reg dest_null = bld.null_reg_f(); + + bld.MUL(dest, src0, src1); + bld.CMP(dest_null, src_reg(dest), zero, BRW_CONDITIONAL_NZ); + + /* = Before = + * 0: mul dest.x src0 src1 + * 1: cmp.nz.f0.0 null dest 0.0f + * + * = After = + * (no changes) + */ + + v->calculate_cfg(); + bblock_t *block0 = v->cfg->blocks[0]; + + EXPECT_EQ(0, block0->start_ip); + EXPECT_EQ(1, block0->end_ip); + + EXPECT_FALSE(cmod_propagation(v)); + + ASSERT_EQ(0, block0->start_ip); + ASSERT_EQ(1, block0->end_ip); + EXPECT_EQ(BRW_OPCODE_MUL, instruction(block0, 0)->opcode); + EXPECT_EQ(BRW_CONDITIONAL_NONE, instruction(block0, 0)->conditional_mod); + EXPECT_EQ(BRW_OPCODE_CMP, instruction(block0, 1)->opcode); + EXPECT_EQ(BRW_CONDITIONAL_NZ, instruction(block0, 1)->conditional_mod); +} + +TEST_F(cmod_propagation_test, mad_one_component_vec4) +{ + const vec4_builder bld = vec4_builder(v).at_end(); + dst_reg dest = dst_reg(v, glsl_type::vec4_type); + dest.writemask = WRITEMASK_X; + src_reg src0 = src_reg(v, glsl_type::vec4_type); + src_reg src1 = src_reg(v, glsl_type::vec4_type); + src_reg src2 = src_reg(v, glsl_type::vec4_type); + src0.swizzle = src1.swizzle = src2.swizzle = BRW_SWIZZLE_XXXX; + src2.negate = true; + src_reg zero(0.0f); + src_reg tmp(dest); + tmp.swizzle = BRW_SWIZZLE_XXXX; + dst_reg dest_null = bld.null_reg_f(); + dest_null.writemask = WRITEMASK_X; + + bld.MAD(dest, src0, src1, src2); + bld.CMP(dest_null, tmp, zero, BRW_CONDITIONAL_L); + + /* = Before = + * + * 0: mad dest.x:F src0.xxxx:F src10.xxxx:F -src2.xxxx:F + * 1: cmp.l.f0.0 null.x:F dest.xxxx:F 0.0f + * + * = After = + * 0: mad.l.f0 dest.x:F src0.xxxx:F src10.xxxx:F -src2.xxxx:F + */ + + v->calculate_cfg(); + bblock_t *block0 = v->cfg->blocks[0]; + + EXPECT_EQ(0, block0->start_ip); + EXPECT_EQ(1, block0->end_ip); + + EXPECT_TRUE(cmod_propagation(v)); + + ASSERT_EQ(0, block0->start_ip); + ASSERT_EQ(0, block0->end_ip); + EXPECT_EQ(BRW_OPCODE_MAD, instruction(block0, 0)->opcode); + EXPECT_EQ(BRW_CONDITIONAL_L, instruction(block0, 0)->conditional_mod); +} + +TEST_F(cmod_propagation_test, mad_more_one_component_vec4) +{ + const vec4_builder bld = vec4_builder(v).at_end(); + dst_reg dest = dst_reg(v, glsl_type::vec4_type); + dest.writemask = WRITEMASK_XW; + src_reg src0 = src_reg(v, glsl_type::vec4_type); + src_reg src1 = src_reg(v, glsl_type::vec4_type); + src_reg src2 = src_reg(v, glsl_type::vec4_type); + src0.swizzle = src1.swizzle = src2.swizzle = BRW_SWIZZLE_XXXX; + src2.negate = true; + src_reg zero(0.0f); + src_reg tmp(dest); + tmp.swizzle = BRW_SWIZZLE_XXXX; + dst_reg dest_null = bld.null_reg_f(); + + bld.MAD(dest, src0, src1, src2); + bld.CMP(dest_null, tmp, zero, BRW_CONDITIONAL_L); + + /* = Before = + * + * 0: mad dest.xw:F src0.xxxx:F src10.xxxx:F -src2.xxxx:F + * 1: cmp.l.f0.0 null:F dest.xxxx:F zeroF + * + * = After = + * (No changes) + */ + + v->calculate_cfg(); + bblock_t *block0 = v->cfg->blocks[0]; + + EXPECT_EQ(0, block0->start_ip); + EXPECT_EQ(1, block0->end_ip); + + EXPECT_FALSE(cmod_propagation(v)); + + ASSERT_EQ(0, block0->start_ip); + ASSERT_EQ(1, block0->end_ip); + EXPECT_EQ(BRW_OPCODE_MAD, instruction(block0, 0)->opcode); + EXPECT_EQ(BRW_CONDITIONAL_NONE, instruction(block0, 0)->conditional_mod); + EXPECT_EQ(BRW_OPCODE_CMP, instruction(block0, 1)->opcode); + EXPECT_EQ(BRW_CONDITIONAL_L, instruction(block0, 1)->conditional_mod); +} + +TEST_F(cmod_propagation_test, cmp_mov_vec4) +{ + const vec4_builder bld = vec4_builder(v).at_end(); + dst_reg dest = dst_reg(v, glsl_type::ivec4_type); + dest.writemask = WRITEMASK_X; + src_reg src0 = src_reg(v, glsl_type::ivec4_type); + src0.swizzle = BRW_SWIZZLE_XXXX; + src0.file = UNIFORM; + src_reg nonone = retype(src_reg(16), BRW_REGISTER_TYPE_D); + src_reg mov_src = src_reg(dest); + mov_src.swizzle = BRW_SWIZZLE_XXXX; + dst_reg dest_null = bld.null_reg_d(); + dest_null.writemask = WRITEMASK_X; + + bld.CMP(dest, src0, nonone, BRW_CONDITIONAL_GE); + set_condmod(BRW_CONDITIONAL_NZ, + bld.MOV(dest_null, mov_src)); + + /* = Before = + * + * 0: cmp.ge.f0 dest.x:D u.xxxx:D 16D + * 1: mov.nz.f0 null.x:D dest.xxxx:D + * + * = After = + * 0: cmp.ge.f0 dest.x:D u.xxxx:D 16D + */ + + v->calculate_cfg(); + bblock_t *block0 = v->cfg->blocks[0]; + + EXPECT_EQ(0, block0->start_ip); + EXPECT_EQ(1, block0->end_ip); + + EXPECT_TRUE(cmod_propagation(v)); + + ASSERT_EQ(0, block0->start_ip); + ASSERT_EQ(0, block0->end_ip); + EXPECT_EQ(BRW_OPCODE_CMP, instruction(block0, 0)->opcode); + EXPECT_EQ(BRW_CONDITIONAL_GE, instruction(block0, 0)->conditional_mod); +} + +TEST_F(cmod_propagation_test, mul_cmp_different_channels_vec4) +{ + const vec4_builder bld = vec4_builder(v).at_end(); + dst_reg dest = dst_reg(v, glsl_type::vec4_type); + src_reg src0 = src_reg(v, glsl_type::vec4_type); + src_reg src1 = src_reg(v, glsl_type::vec4_type); + src_reg zero(0.0f); + src_reg cmp_src = src_reg(dest); + cmp_src.swizzle = BRW_SWIZZLE4(0,1,3,2); + + bld.MUL(dest, src0, src1); + bld.CMP(bld.null_reg_f(), cmp_src, zero, BRW_CONDITIONAL_NZ); + + /* = Before = + * 0: mul dest src0 src1 + * 1: cmp.nz.f0.0 null dest.xywz 0.0f + * + * = After = + * (No changes) + */ + + v->calculate_cfg(); + bblock_t *block0 = v->cfg->blocks[0]; + + EXPECT_EQ(0, block0->start_ip); + EXPECT_EQ(1, block0->end_ip); + + EXPECT_FALSE(cmod_propagation(v)); + + ASSERT_EQ(0, block0->start_ip); + ASSERT_EQ(1, block0->end_ip); + EXPECT_EQ(BRW_OPCODE_MUL, instruction(block0, 0)->opcode); + EXPECT_EQ(BRW_CONDITIONAL_NONE, instruction(block0, 0)->conditional_mod); + EXPECT_EQ(BRW_OPCODE_CMP, instruction(block0, 1)->opcode); + EXPECT_EQ(BRW_CONDITIONAL_NZ, instruction(block0, 1)->conditional_mod); +} |