/*
* Copyright © 2011 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.
*/
/**
* \file test_optpass.cpp
*
* Standalone test for optimization passes.
*
* This file provides the "optpass" command for the standalone
* glsl_test app. It accepts either GLSL or high-level IR as input,
* and performs the optimiation passes specified on the command line.
* It outputs the IR, both before and after optimiations.
*/
#include <string>
#include <iostream>
#include <sstream>
#include <getopt.h>
#include "ast.h"
#include "ir_optimization.h"
#include "program.h"
#include "ir_reader.h"
#include "standalone_scaffolding.h"
using namespace std;
static string read_stdin_to_eof()
{
stringbuf sb;
cin.get(sb, '\0');
return sb.str();
}
static GLboolean
do_optimization(struct exec_list *ir, const char *optimization,
const struct gl_shader_compiler_options *options)
{
int int_0;
int int_1;
int int_2;
int int_3;
int int_4;
if (sscanf(optimization, "do_common_optimization ( %d , %d ) ",
&int_0, &int_1) == 2) {
return do_common_optimization(ir, int_0 != 0, false, int_1, options);
} else if (strcmp(optimization, "do_algebraic") == 0) {
return do_algebraic(ir);
} else if (strcmp(optimization, "do_constant_folding") == 0) {
return do_constant_folding(ir);
} else if (strcmp(optimization, "do_constant_variable") == 0) {
return do_constant_variable(ir);
} else if (strcmp(optimization, "do_constant_variable_unlinked") == 0) {
return do_constant_variable_unlinked(ir);
} else if (strcmp(optimization, "do_copy_propagation") == 0) {
return do_copy_propagation(ir);
} else if (strcmp(optimization, "do_copy_propagation_elements") == 0) {
return do_copy_propagation_elements(ir);
} else if (strcmp(optimization, "do_constant_propagation") == 0) {
return do_constant_propagation(ir);
} else if (strcmp(optimization, "do_dead_code") == 0) {
return do_dead_code(ir, false);
} else if (strcmp(optimization, "do_dead_code_local") == 0) {
return do_dead_code_local(ir);
} else if (strcmp(optimization, "do_dead_code_unlinked") == 0) {
return do_dead_code_unlinked(ir);
} else if (strcmp(optimization, "do_dead_functions") == 0) {
return do_dead_functions(ir);
} else if (strcmp(optimization, "do_function_inlining") == 0) {
return do_function_inlining(ir);
} else if (sscanf(optimization,
"do_lower_jumps ( %d , %d , %d , %d , %d ) ",
&int_0, &int_1, &int_2, &int_3, &int_4) == 5) {
return do_lower_jumps(ir, int_0 != 0, int_1 != 0, int_2 != 0,
int_3 != 0, int_4 != 0);
} else if (strcmp(optimization, "do_lower_texture_projection") == 0) {
return do_lower_texture_projection(ir);
} else if (strcmp(optimization, "do_if_simplification") == 0) {
return do_if_simplification(ir);
} else if (sscanf(optimization, "lower_if_to_cond_assign ( %d ) ",
&int_0) == 1) {
return lower_if_to_cond_assign(ir, int_0);
} else if (strcmp(optimization, "do_mat_op_to_vec") == 0) {
return do_mat_op_to_vec(ir);
} else if (strcmp(optimization, "do_noop_swizzle") == 0) {
return do_noop_swizzle(ir);
} else if (strcmp(optimization, "do_structure_splitting") == 0) {
return do_structure_splitting(ir);
} else if (strcmp(optimization, "do_swizzle_swizzle") == 0) {
return do_swizzle_swizzle(ir);
} else if (strcmp(optimization, "do_tree_grafting") == 0) {
return do_tree_grafting(ir);
} else if (strcmp(optimization, "do_vec_index_to_cond_assign") == 0) {
return do_vec_index_to_cond_assign(ir);
} else if (strcmp(optimization, "do_vec_index_to_swizzle") == 0) {
return do_vec_index_to_swizzle(ir);
} else if (strcmp(optimization, "lower_discard") == 0) {
return lower_discard(ir);
} else if (sscanf(optimization, "lower_instructions ( %d ) ",
&int_0) == 1) {
return lower_instructions(ir, int_0);
} else if (strcmp(optimization, "lower_noise") == 0) {
return lower_noise(ir);
} else if (sscanf(optimization, "lower_variable_index_to_cond_assign "
"( %d , %d , %d , %d ) ", &int_0, &int_1, &int_2,
&int_3) == 4) {
return lower_variable_index_to_cond_assign(ir, int_0 != 0, int_1 != 0,
int_2 != 0, int_3 != 0);
} else if (sscanf(optimization, "lower_quadop_vector ( %d ) ",
&int_0) == 1) {
return lower_quadop_vector(ir, int_0 != 0);
} else if (strcmp(optimization, "optimize_redundant_jumps") == 0) {
return optimize_redundant_jumps(ir);
} else {
printf("Unrecognized optimization %s\n", optimization);
exit(EXIT_FAILURE);
return false;
}
}
static GLboolean
do_optimization_passes(struct exec_list *ir, char **optimizations,
int num_optimizations, bool quiet,
const struct gl_shader_compiler_options *options)
{
GLboolean overall_progress = false;
for (int i = 0; i < num_optimizations; ++i) {
const char *optimization = optimizations[i];
if (!quiet) {
printf("*** Running optimization %s...", optimization);
}
GLboolean progress = do_optimization(ir, optimization, options);
if (!quiet) {
printf("%s\n", progress ? "progress" : "no progress");
}
validate_ir_tree(ir);
overall_progress = overall_progress || progress;
}
return overall_progress;
}
int test_optpass(int argc, char **argv)
{
int input_format_ir = 0; /* 0=glsl, 1=ir */
int loop = 0;
int shader_type = GL_VERTEX_SHADER;
int quiet = 0;
const struct option optpass_opts[] = {
{ "input-ir", no_argument, &input_format_ir, 1 },
{ "input-glsl", no_argument, &input_format_ir, 0 },
{ "loop", no_argument, &loop, 1 },
{ "vertex-shader", no_argument, &shader_type, GL_VERTEX_SHADER },
{ "fragment-shader", no_argument, &shader_type, GL_FRAGMENT_SHADER },
{ "quiet", no_argument, &quiet, 1 },
{ NULL, 0, NULL, 0 }
};
int idx = 0;
int c;
while ((c = getopt_long(argc, argv, "", optpass_opts, &idx)) != -1) {
if (c != 0) {
printf("*** usage: %s optpass <optimizations> <options>\n", argv[0]);
printf("\n");
printf("Possible options are:\n");
printf(" --input-ir: input format is IR\n");
printf(" --input-glsl: input format is GLSL (the default)\n");
printf(" --loop: run optimizations repeatedly until no progress\n");
printf(" --vertex-shader: test with a vertex shader (the default)\n");
printf(" --fragment-shader: test with a fragment shader\n");
exit(EXIT_FAILURE);
}
}
struct gl_context local_ctx;
struct gl_context *ctx = &local_ctx;
initialize_context_to_defaults(ctx, API_OPENGL_COMPAT);
ctx->Driver.NewShader = _mesa_new_shader;
struct gl_shader *shader = rzalloc(NULL, struct gl_shader);
shader->Type = shader_type;
string input = read_stdin_to_eof();
struct _mesa_glsl_parse_state *state
= new(shader) _mesa_glsl_parse_state(ctx, shader->Type, shader);
if (input_format_ir) {
shader->ir = new(shader) exec_list;
_mesa_glsl_initialize_types(state);
_mesa_glsl_read_ir(state, shader->ir, input.c_str(), true);
} else {
shader->Source = input.c_str();
const char *source = shader->Source;
state->error = glcpp_preprocess(state, &source, &state->info_log,
state->extensions, ctx) != 0;
if (!state->error) {
_mesa_glsl_lexer_ctor(state, source);
_mesa_glsl_parse(state);
_mesa_glsl_lexer_dtor(state);
}
shader->ir = new(shader) exec_list;
if (!state->error && !state->translation_unit.is_empty())
_mesa_ast_to_hir(shader->ir, state);
}
/* Print out the initial IR */
if (!state->error && !quiet) {
printf("*** pre-optimization IR:\n");
_mesa_print_ir(shader->ir, state);
printf("\n--\n");
}
/* Optimization passes */
if (!state->error) {
GLboolean progress;
const struct gl_shader_compiler_options *options =
&ctx->ShaderCompilerOptions[_mesa_shader_type_to_index(shader_type)];
do {
progress = do_optimization_passes(shader->ir, &argv[optind],
argc - optind, quiet != 0, options);
} while (loop && progress);
}
/* Print out the resulting IR */
if (!state->error) {
if (!quiet) {
printf("*** resulting IR:\n");
}
_mesa_print_ir(shader->ir, state);
if (!quiet) {
printf("\n--\n");
}
}
if (state->error) {
printf("*** error(s) occurred:\n");
printf("%s\n", state->info_log);
printf("--\n");
}
ralloc_free(state);
ralloc_free(shader);
return state->error;
}