src/amd/compiler/aco_interface.cpp - third_party/mesa - Git at Google

 /*
  * Copyright © 2018 Google
  *
  * 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 "aco_interface.h"

 #include "aco_ir.h"

 #include "util/memstream.h"

 #include "ac_gpu_info.h"
 #include <array>
 #include <iostream>
 #include <vector>

 using namespace aco;

 namespace {

 static const std::array<aco_compiler_statistic_info, aco_num_statistics> statistic_infos = []()
 {
    std::array<aco_compiler_statistic_info, aco_num_statistics> ret{};
    ret[aco_statistic_hash] =
       aco_compiler_statistic_info{"Hash", "CRC32 hash of code and constant data"};
    ret[aco_statistic_instructions] =
       aco_compiler_statistic_info{"Instructions", "Instruction count"};
    ret[aco_statistic_copies] =
       aco_compiler_statistic_info{"Copies", "Copy instructions created for pseudo-instructions"};
    ret[aco_statistic_branches] = aco_compiler_statistic_info{"Branches", "Branch instructions"};
    ret[aco_statistic_latency] =
       aco_compiler_statistic_info{"Latency", "Issue cycles plus stall cycles"};
    ret[aco_statistic_inv_throughput] = aco_compiler_statistic_info{
       "Inverse Throughput", "Estimated busy cycles to execute one wave"};
    ret[aco_statistic_vmem_clauses] = aco_compiler_statistic_info{
       "VMEM Clause", "Number of VMEM clauses (includes 1-sized clauses)"};
    ret[aco_statistic_smem_clauses] = aco_compiler_statistic_info{
       "SMEM Clause", "Number of SMEM clauses (includes 1-sized clauses)"};
    ret[aco_statistic_sgpr_presched] =
       aco_compiler_statistic_info{"Pre-Sched SGPRs", "SGPR usage before scheduling"};
    ret[aco_statistic_vgpr_presched] =
       aco_compiler_statistic_info{"Pre-Sched VGPRs", "VGPR usage before scheduling"};
    ret[aco_statistic_valu] = aco_compiler_statistic_info{"VALU", "Number of VALU instructions"};
    ret[aco_statistic_salu] = aco_compiler_statistic_info{"SALU", "Number of SALU instructions"};
    ret[aco_statistic_vmem] = aco_compiler_statistic_info{"VMEM", "Number of VMEM instructions"};
    ret[aco_statistic_smem] = aco_compiler_statistic_info{"SMEM", "Number of SMEM instructions"};
    ret[aco_statistic_vopd] = aco_compiler_statistic_info{"VOPD", "Number of VOPD instructions"};
    return ret;
 }();

 static void
 validate(Program* program)
 {
    if (!(debug_flags & DEBUG_VALIDATE_IR))
       return;

    ASSERTED bool is_valid = validate_ir(program);
    assert(is_valid);
 }

 static std::string
 get_disasm_string(Program* program, std::vector<uint32_t>& code, unsigned exec_size)
 {
    std::string disasm;

    char* data = NULL;
    size_t disasm_size = 0;
    struct u_memstream mem;
    if (u_memstream_open(&mem, &data, &disasm_size)) {
       FILE* const memf = u_memstream_get(&mem);
       if (check_print_asm_support(program)) {
          print_asm(program, code, exec_size / 4u, memf);
       } else {
          fprintf(memf, "Shader disassembly is not supported in the current configuration"
 #if !LLVM_AVAILABLE
                        " (LLVM not available)"
 #endif
                        ", falling back to print_program.\n\n");
          aco_print_program(program, memf);
       }
       fputc(0, memf);
       u_memstream_close(&mem);
       disasm = std::string(data, data + disasm_size);
       free(data);
    }

    return disasm;
 }

 static std::string
 aco_postprocess_shader(const struct aco_compiler_options* options,
                        const struct aco_shader_info* info, std::unique_ptr<Program>& program)
 {
    std::string llvm_ir;

    if (options->dump_preoptir)
       aco_print_program(program.get(), stderr);

    ASSERTED bool is_valid = validate_cfg(program.get());
    assert(is_valid);

    live live_vars;
    if (!info->is_trap_handler_shader) {
       dominator_tree(program.get());
       lower_phis(program.get());
       validate(program.get());

       /* Optimization */
       if (!options->optimisations_disabled) {
          if (!(debug_flags & DEBUG_NO_VN))
             value_numbering(program.get());
          if (!(debug_flags & DEBUG_NO_OPT))
             optimize(program.get());
       }

       /* cleanup and exec mask handling */
       setup_reduce_temp(program.get());
       insert_exec_mask(program.get());
       validate(program.get());

       /* spilling and scheduling */
       live_vars = live_var_analysis(program.get());
       if (program->collect_statistics)
          collect_presched_stats(program.get());
       spill(program.get(), live_vars);
    }

    if (options->record_ir) {
       char* data = NULL;
       size_t size = 0;
       u_memstream mem;
       if (u_memstream_open(&mem, &data, &size)) {
          FILE* const memf = u_memstream_get(&mem);
          aco_print_program(program.get(), memf);
          fputc(0, memf);
          u_memstream_close(&mem);
       }

       llvm_ir = std::string(data, data + size);
       free(data);
    }

    if ((debug_flags & DEBUG_LIVE_INFO) && options->dump_shader)
       aco_print_program(program.get(), stderr, live_vars, print_live_vars | print_kill);

    if (!info->is_trap_handler_shader) {
       if (!options->optimisations_disabled && !(debug_flags & DEBUG_NO_SCHED))
          schedule_program(program.get(), live_vars);
       validate(program.get());

       /* Register Allocation */
       register_allocation(program.get(), live_vars);

       if (validate_ra(program.get())) {
          aco_print_program(program.get(), stderr);
          abort();
       } else if (options->dump_shader) {
          aco_print_program(program.get(), stderr);
       }

       validate(program.get());

       /* Optimization */
       if (!options->optimisations_disabled && !(debug_flags & DEBUG_NO_OPT)) {
          optimize_postRA(program.get());
          validate(program.get());
       }

       ssa_elimination(program.get());
    }

    /* Lower to HW Instructions */
    lower_to_hw_instr(program.get());
    validate(program.get());

    if (!options->optimisations_disabled && !(debug_flags & DEBUG_NO_SCHED_VOPD))
       schedule_vopd(program.get());

    /* Schedule hardware instructions for ILP */
    if (!options->optimisations_disabled && !(debug_flags & DEBUG_NO_SCHED_ILP))
       schedule_ilp(program.get());

    /* Insert Waitcnt */
    insert_wait_states(program.get());
    insert_NOPs(program.get());

    if (program->gfx_level >= GFX10)
       form_hard_clauses(program.get());

    if (program->collect_statistics || (debug_flags & DEBUG_PERF_INFO))
       collect_preasm_stats(program.get());

    return llvm_ir;
 }

 typedef void(select_shader_part_callback)(Program* program, void* pinfo, ac_shader_config* config,
                                           const struct aco_compiler_options* options,
                                           const struct aco_shader_info* info,
                                           const struct ac_shader_args* args);

 static void
 aco_compile_shader_part(const struct aco_compiler_options* options,
                         const struct aco_shader_info* info, const struct ac_shader_args* args,
                         select_shader_part_callback select_shader_part, void* pinfo,
                         aco_shader_part_callback* build_binary, void** binary,
                         bool is_prolog = false)
 {
    init();

    ac_shader_config config = {0};
    std::unique_ptr<Program> program{new Program};

    program->collect_statistics = options->record_stats;
    if (program->collect_statistics)
       memset(program->statistics, 0, sizeof(program->statistics));

    program->debug.func = options->debug.func;
    program->debug.private_data = options->debug.private_data;

    program->is_prolog = is_prolog;

    /* Instruction selection */
    select_shader_part(program.get(), pinfo, &config, options, info, args);

    aco_postprocess_shader(options, info, program);

    /* assembly */
    std::vector<uint32_t> code;
    bool append_endpgm = !(options->is_opengl && is_prolog);
    unsigned exec_size = emit_program(program.get(), code, NULL, append_endpgm);

    bool get_disasm = options->dump_shader || options->record_ir;

    std::string disasm;
    if (get_disasm)
       disasm = get_disasm_string(program.get(), code, exec_size);

    (*build_binary)(binary, config.num_sgprs, config.num_vgprs, code.data(), code.size(),
                    disasm.data(), disasm.size());
 }

 } /* end namespace */

 void
 aco_compile_shader(const struct aco_compiler_options* options, const struct aco_shader_info* info,
                    unsigned shader_count, struct nir_shader* const* shaders,
                    const struct ac_shader_args* args, aco_callback* build_binary, void** binary)
 {
    init();

    ac_shader_config config = {0};
    std::unique_ptr<Program> program{new Program};

    program->collect_statistics = options->record_stats;
    if (program->collect_statistics)
       memset(program->statistics, 0, sizeof(program->statistics));

    program->debug.func = options->debug.func;
    program->debug.private_data = options->debug.private_data;

    /* Instruction Selection */
    if (info->is_trap_handler_shader)
       select_trap_handler_shader(program.get(), shaders[0], &config, options, info, args);
    else
       select_program(program.get(), shader_count, shaders, &config, options, info, args);

    std::string llvm_ir = aco_postprocess_shader(options, info, program);

    /* assembly */
    std::vector<uint32_t> code;
    std::vector<struct aco_symbol> symbols;
    /* OpenGL combine multi shader parts into one continous code block,
     * so only last part need the s_endpgm instruction.
     */
    bool append_endpgm = !(options->is_opengl && info->has_epilog);
    unsigned exec_size = emit_program(program.get(), code, &symbols, append_endpgm);

    if (program->collect_statistics)
       collect_postasm_stats(program.get(), code);

    bool get_disasm = options->dump_shader || options->record_ir;

    std::string disasm;
    if (get_disasm)
       disasm = get_disasm_string(program.get(), code, exec_size);

    size_t stats_size = 0;
    if (program->collect_statistics)
       stats_size = aco_num_statistics * sizeof(uint32_t);

    (*build_binary)(binary, &config, llvm_ir.c_str(), llvm_ir.size(), disasm.c_str(), disasm.size(),
                    program->statistics, stats_size, exec_size, code.data(), code.size(),
                    symbols.data(), symbols.size());
 }

 void
 aco_compile_rt_prolog(const struct aco_compiler_options* options,
                       const struct aco_shader_info* info, const struct ac_shader_args* in_args,
                       const struct ac_shader_args* out_args, aco_callback* build_prolog,
                       void** binary)
 {
    init();

    /* create program */
    ac_shader_config config = {0};
    std::unique_ptr<Program> program{new Program};
    program->collect_statistics = false;
    program->debug.func = NULL;
    program->debug.private_data = NULL;

    select_rt_prolog(program.get(), &config, options, info, in_args, out_args);
    validate(program.get());
    insert_wait_states(program.get());
    insert_NOPs(program.get());
    if (program->gfx_level >= GFX10)
       form_hard_clauses(program.get());

    if (options->dump_shader)
       aco_print_program(program.get(), stderr);

    /* assembly */
    std::vector<uint32_t> code;
    code.reserve(align(program->blocks[0].instructions.size() * 2, 16));
    unsigned exec_size = emit_program(program.get(), code);

    bool get_disasm = options->dump_shader || options->record_ir;

    std::string disasm;
    if (get_disasm)
       disasm = get_disasm_string(program.get(), code, exec_size);

    (*build_prolog)(binary, &config, NULL, 0, disasm.c_str(), disasm.size(), program->statistics, 0,
                    exec_size, code.data(), code.size(), NULL, 0);
 }

 void
 aco_compile_vs_prolog(const struct aco_compiler_options* options,
                       const struct aco_shader_info* info, const struct aco_vs_prolog_info* pinfo,
                       const struct ac_shader_args* args, aco_shader_part_callback* build_prolog,
                       void** binary)
 {
    init();

    /* create program */
    ac_shader_config config = {0};
    std::unique_ptr<Program> program{new Program};
    program->collect_statistics = false;
    program->debug.func = NULL;
    program->debug.private_data = NULL;

    /* create IR */
    select_vs_prolog(program.get(), pinfo, &config, options, info, args);
    validate(program.get());
    insert_NOPs(program.get());

    if (options->dump_shader)
       aco_print_program(program.get(), stderr);

    /* assembly */
    std::vector<uint32_t> code;
    code.reserve(align(program->blocks[0].instructions.size() * 2, 16));
    unsigned exec_size = emit_program(program.get(), code);

    bool get_disasm = options->dump_shader || options->record_ir;

    std::string disasm;
    if (get_disasm)
       disasm = get_disasm_string(program.get(), code, exec_size);

    (*build_prolog)(binary, config.num_sgprs, config.num_vgprs, code.data(), code.size(),
                    disasm.data(), disasm.size());
 }

 void
 aco_compile_ps_epilog(const struct aco_compiler_options* options,
                       const struct aco_shader_info* info, const struct aco_ps_epilog_info* pinfo,
                       const struct ac_shader_args* args, aco_shader_part_callback* build_epilog,
                       void** binary)
 {
    aco_compile_shader_part(options, info, args, select_ps_epilog, (void*)pinfo, build_epilog,
                            binary);
 }

 void
 aco_compile_tcs_epilog(const struct aco_compiler_options* options,
                        const struct aco_shader_info* info, const struct aco_tcs_epilog_info* pinfo,
                        const struct ac_shader_args* args, aco_shader_part_callback* build_epilog,
                        void** binary)
 {
    aco_compile_shader_part(options, info, args, select_tcs_epilog, (void*)pinfo, build_epilog,
                            binary);
 }

 void
 aco_compile_ps_prolog(const struct aco_compiler_options* options,
                       const struct aco_shader_info* info, const struct aco_ps_prolog_info* pinfo,
                       const struct ac_shader_args* args, aco_shader_part_callback* build_prolog,
                       void** binary)
 {
    aco_compile_shader_part(options, info, args, select_ps_prolog, (void*)pinfo, build_prolog,
                            binary, true);
 }

 uint64_t
 aco_get_codegen_flags()
 {
    init();
    /* Exclude flags which don't affect code generation. */
    uint64_t exclude =
       DEBUG_VALIDATE_IR | DEBUG_VALIDATE_RA | DEBUG_PERFWARN | DEBUG_PERF_INFO | DEBUG_LIVE_INFO;
    return debug_flags & ~exclude;
 }

 bool
 aco_is_gpu_supported(const struct radeon_info* info)
 {
    /* Does not support compute only cards yet. */
    return info->gfx_level >= GFX6 && info->has_graphics;
 }

 bool
 aco_nir_op_supports_packed_math_16bit(const nir_alu_instr* alu)
 {
    switch (alu->op) {
    case nir_op_f2f16: {
       nir_shader* shader = nir_cf_node_get_function(&alu->instr.block->cf_node)->function->shader;
       unsigned execution_mode = shader->info.float_controls_execution_mode;
       return (shader->options->force_f2f16_rtz && !nir_is_rounding_mode_rtne(execution_mode, 16)) ||
              nir_is_rounding_mode_rtz(execution_mode, 16);
    }
    case nir_op_fadd:
    case nir_op_fsub:
    case nir_op_fmul:
    case nir_op_ffma:
    case nir_op_fdiv:
    case nir_op_flrp:
    case nir_op_fabs:
    case nir_op_fneg:
    case nir_op_fsat:
    case nir_op_fmin:
    case nir_op_fmax:
    case nir_op_f2f16_rtz:
    case nir_op_iabs:
    case nir_op_iadd:
    case nir_op_iadd_sat:
    case nir_op_uadd_sat:
    case nir_op_isub:
    case nir_op_isub_sat:
    case nir_op_usub_sat:
    case nir_op_ineg:
    case nir_op_imul:
    case nir_op_imin:
    case nir_op_imax:
    case nir_op_umin:
    case nir_op_umax:
    case nir_op_fddx:
    case nir_op_fddy:
    case nir_op_fddx_fine:
    case nir_op_fddy_fine:
    case nir_op_fddx_coarse:
    case nir_op_fddy_coarse: return true;
    case nir_op_ishl: /* TODO: in NIR, these have 32bit shift operands */
    case nir_op_ishr: /* while Radeon needs 16bit operands when vectorized */
    case nir_op_ushr:
    default: return false;
    }
 }

 const aco_compiler_statistic_info* aco_statistic_infos = statistic_infos.data();
	/*
	* Copyright © 2018 Google
	*
	* 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 "aco_interface.h"

	#include "aco_ir.h"

	#include "util/memstream.h"

	#include "ac_gpu_info.h"
	#include <array>
	#include <iostream>
	#include <vector>

	using namespace aco;

	namespace {

	static const std::array<aco_compiler_statistic_info, aco_num_statistics> statistic_infos = []()
	{
	std::array<aco_compiler_statistic_info, aco_num_statistics> ret{};
	ret[aco_statistic_hash] =
	aco_compiler_statistic_info{"Hash", "CRC32 hash of code and constant data"};
	ret[aco_statistic_instructions] =
	aco_compiler_statistic_info{"Instructions", "Instruction count"};
	ret[aco_statistic_copies] =
	aco_compiler_statistic_info{"Copies", "Copy instructions created for pseudo-instructions"};
	ret[aco_statistic_branches] = aco_compiler_statistic_info{"Branches", "Branch instructions"};
	ret[aco_statistic_latency] =
	aco_compiler_statistic_info{"Latency", "Issue cycles plus stall cycles"};
	ret[aco_statistic_inv_throughput] = aco_compiler_statistic_info{
	"Inverse Throughput", "Estimated busy cycles to execute one wave"};
	ret[aco_statistic_vmem_clauses] = aco_compiler_statistic_info{
	"VMEM Clause", "Number of VMEM clauses (includes 1-sized clauses)"};
	ret[aco_statistic_smem_clauses] = aco_compiler_statistic_info{
	"SMEM Clause", "Number of SMEM clauses (includes 1-sized clauses)"};
	ret[aco_statistic_sgpr_presched] =
	aco_compiler_statistic_info{"Pre-Sched SGPRs", "SGPR usage before scheduling"};
	ret[aco_statistic_vgpr_presched] =
	aco_compiler_statistic_info{"Pre-Sched VGPRs", "VGPR usage before scheduling"};
	ret[aco_statistic_valu] = aco_compiler_statistic_info{"VALU", "Number of VALU instructions"};
	ret[aco_statistic_salu] = aco_compiler_statistic_info{"SALU", "Number of SALU instructions"};
	ret[aco_statistic_vmem] = aco_compiler_statistic_info{"VMEM", "Number of VMEM instructions"};
	ret[aco_statistic_smem] = aco_compiler_statistic_info{"SMEM", "Number of SMEM instructions"};
	ret[aco_statistic_vopd] = aco_compiler_statistic_info{"VOPD", "Number of VOPD instructions"};
	return ret;
	}();

	static void
	validate(Program* program)
	{
	if (!(debug_flags & DEBUG_VALIDATE_IR))
	return;

	ASSERTED bool is_valid = validate_ir(program);
	assert(is_valid);
	}

	static std::string
	get_disasm_string(Program* program, std::vector<uint32_t>& code, unsigned exec_size)
	{
	std::string disasm;

	char* data = NULL;
	size_t disasm_size = 0;
	struct u_memstream mem;
	if (u_memstream_open(&mem, &data, &disasm_size)) {
	FILE* const memf = u_memstream_get(&mem);
	if (check_print_asm_support(program)) {
	print_asm(program, code, exec_size / 4u, memf);
	} else {
	fprintf(memf, "Shader disassembly is not supported in the current configuration"
	#if !LLVM_AVAILABLE
	" (LLVM not available)"
	#endif
	", falling back to print_program.\n\n");
	aco_print_program(program, memf);
	}
	fputc(0, memf);
	u_memstream_close(&mem);
	disasm = std::string(data, data + disasm_size);
	free(data);
	}

	return disasm;
	}

	static std::string
	aco_postprocess_shader(const struct aco_compiler_options* options,
	const struct aco_shader_info* info, std::unique_ptr<Program>& program)
	{
	std::string llvm_ir;

	if (options->dump_preoptir)
	aco_print_program(program.get(), stderr);

	ASSERTED bool is_valid = validate_cfg(program.get());
	assert(is_valid);

	live live_vars;
	if (!info->is_trap_handler_shader) {
	dominator_tree(program.get());
	lower_phis(program.get());
	validate(program.get());

	/* Optimization */
	if (!options->optimisations_disabled) {
	if (!(debug_flags & DEBUG_NO_VN))
	value_numbering(program.get());
	if (!(debug_flags & DEBUG_NO_OPT))
	optimize(program.get());
	}

	/* cleanup and exec mask handling */
	setup_reduce_temp(program.get());
	insert_exec_mask(program.get());
	validate(program.get());

	/* spilling and scheduling */
	live_vars = live_var_analysis(program.get());
	if (program->collect_statistics)
	collect_presched_stats(program.get());
	spill(program.get(), live_vars);
	}

	if (options->record_ir) {
	char* data = NULL;
	size_t size = 0;
	u_memstream mem;
	if (u_memstream_open(&mem, &data, &size)) {
	FILE* const memf = u_memstream_get(&mem);
	aco_print_program(program.get(), memf);
	fputc(0, memf);
	u_memstream_close(&mem);
	}

	llvm_ir = std::string(data, data + size);
	free(data);
	}

	if ((debug_flags & DEBUG_LIVE_INFO) && options->dump_shader)
	aco_print_program(program.get(), stderr, live_vars, print_live_vars \| print_kill);

	if (!info->is_trap_handler_shader) {
	if (!options->optimisations_disabled && !(debug_flags & DEBUG_NO_SCHED))
	schedule_program(program.get(), live_vars);
	validate(program.get());

	/* Register Allocation */
	register_allocation(program.get(), live_vars);

	if (validate_ra(program.get())) {
	aco_print_program(program.get(), stderr);
	abort();
	} else if (options->dump_shader) {
	aco_print_program(program.get(), stderr);
	}

	validate(program.get());

	/* Optimization */
	if (!options->optimisations_disabled && !(debug_flags & DEBUG_NO_OPT)) {
	optimize_postRA(program.get());
	validate(program.get());
	}

	ssa_elimination(program.get());
	}

	/* Lower to HW Instructions */
	lower_to_hw_instr(program.get());
	validate(program.get());

	if (!options->optimisations_disabled && !(debug_flags & DEBUG_NO_SCHED_VOPD))
	schedule_vopd(program.get());

	/* Schedule hardware instructions for ILP */
	if (!options->optimisations_disabled && !(debug_flags & DEBUG_NO_SCHED_ILP))
	schedule_ilp(program.get());

	/* Insert Waitcnt */
	insert_wait_states(program.get());
	insert_NOPs(program.get());

	if (program->gfx_level >= GFX10)
	form_hard_clauses(program.get());

	if (program->collect_statistics \|\| (debug_flags & DEBUG_PERF_INFO))
	collect_preasm_stats(program.get());

	return llvm_ir;
	}

	typedef void(select_shader_part_callback)(Program* program, void* pinfo, ac_shader_config* config,
	const struct aco_compiler_options* options,
	const struct aco_shader_info* info,
	const struct ac_shader_args* args);

	static void
	aco_compile_shader_part(const struct aco_compiler_options* options,
	const struct aco_shader_info* info, const struct ac_shader_args* args,
	select_shader_part_callback select_shader_part, void* pinfo,
	aco_shader_part_callback* build_binary, void** binary,
	bool is_prolog = false)
	{
	init();

	ac_shader_config config = {0};
	std::unique_ptr<Program> program{new Program};

	program->collect_statistics = options->record_stats;
	if (program->collect_statistics)
	memset(program->statistics, 0, sizeof(program->statistics));

	program->debug.func = options->debug.func;
	program->debug.private_data = options->debug.private_data;

	program->is_prolog = is_prolog;

	/* Instruction selection */
	select_shader_part(program.get(), pinfo, &config, options, info, args);

	aco_postprocess_shader(options, info, program);

	/* assembly */
	std::vector<uint32_t> code;
	bool append_endpgm = !(options->is_opengl && is_prolog);
	unsigned exec_size = emit_program(program.get(), code, NULL, append_endpgm);

	bool get_disasm = options->dump_shader \|\| options->record_ir;

	std::string disasm;
	if (get_disasm)
	disasm = get_disasm_string(program.get(), code, exec_size);

	(*build_binary)(binary, config.num_sgprs, config.num_vgprs, code.data(), code.size(),
	disasm.data(), disasm.size());
	}

	} /* end namespace */

	void
	aco_compile_shader(const struct aco_compiler_options* options, const struct aco_shader_info* info,
	unsigned shader_count, struct nir_shader* const* shaders,
	const struct ac_shader_args* args, aco_callback* build_binary, void** binary)
	{
	init();

	ac_shader_config config = {0};
	std::unique_ptr<Program> program{new Program};

	program->collect_statistics = options->record_stats;
	if (program->collect_statistics)
	memset(program->statistics, 0, sizeof(program->statistics));

	program->debug.func = options->debug.func;
	program->debug.private_data = options->debug.private_data;

	/* Instruction Selection */
	if (info->is_trap_handler_shader)
	select_trap_handler_shader(program.get(), shaders[0], &config, options, info, args);
	else
	select_program(program.get(), shader_count, shaders, &config, options, info, args);

	std::string llvm_ir = aco_postprocess_shader(options, info, program);

	/* assembly */
	std::vector<uint32_t> code;
	std::vector<struct aco_symbol> symbols;
	/* OpenGL combine multi shader parts into one continous code block,
	* so only last part need the s_endpgm instruction.
	*/
	bool append_endpgm = !(options->is_opengl && info->has_epilog);
	unsigned exec_size = emit_program(program.get(), code, &symbols, append_endpgm);

	if (program->collect_statistics)
	collect_postasm_stats(program.get(), code);

	bool get_disasm = options->dump_shader \|\| options->record_ir;

	std::string disasm;
	if (get_disasm)
	disasm = get_disasm_string(program.get(), code, exec_size);

	size_t stats_size = 0;
	if (program->collect_statistics)
	stats_size = aco_num_statistics * sizeof(uint32_t);

	(*build_binary)(binary, &config, llvm_ir.c_str(), llvm_ir.size(), disasm.c_str(), disasm.size(),
	program->statistics, stats_size, exec_size, code.data(), code.size(),
	symbols.data(), symbols.size());
	}

	void
	aco_compile_rt_prolog(const struct aco_compiler_options* options,
	const struct aco_shader_info* info, const struct ac_shader_args* in_args,
	const struct ac_shader_args* out_args, aco_callback* build_prolog,
	void** binary)
	{
	init();

	/* create program */
	ac_shader_config config = {0};
	std::unique_ptr<Program> program{new Program};
	program->collect_statistics = false;
	program->debug.func = NULL;
	program->debug.private_data = NULL;

	select_rt_prolog(program.get(), &config, options, info, in_args, out_args);
	validate(program.get());
	insert_wait_states(program.get());
	insert_NOPs(program.get());
	if (program->gfx_level >= GFX10)
	form_hard_clauses(program.get());

	if (options->dump_shader)
	aco_print_program(program.get(), stderr);

	/* assembly */
	std::vector<uint32_t> code;
	code.reserve(align(program->blocks[0].instructions.size() * 2, 16));
	unsigned exec_size = emit_program(program.get(), code);

	bool get_disasm = options->dump_shader \|\| options->record_ir;

	std::string disasm;
	if (get_disasm)
	disasm = get_disasm_string(program.get(), code, exec_size);

	(*build_prolog)(binary, &config, NULL, 0, disasm.c_str(), disasm.size(), program->statistics, 0,
	exec_size, code.data(), code.size(), NULL, 0);
	}

	void
	aco_compile_vs_prolog(const struct aco_compiler_options* options,
	const struct aco_shader_info* info, const struct aco_vs_prolog_info* pinfo,
	const struct ac_shader_args* args, aco_shader_part_callback* build_prolog,
	void** binary)
	{
	init();

	/* create program */
	ac_shader_config config = {0};
	std::unique_ptr<Program> program{new Program};
	program->collect_statistics = false;
	program->debug.func = NULL;
	program->debug.private_data = NULL;

	/* create IR */
	select_vs_prolog(program.get(), pinfo, &config, options, info, args);
	validate(program.get());
	insert_NOPs(program.get());

	if (options->dump_shader)
	aco_print_program(program.get(), stderr);

	/* assembly */
	std::vector<uint32_t> code;
	code.reserve(align(program->blocks[0].instructions.size() * 2, 16));
	unsigned exec_size = emit_program(program.get(), code);

	bool get_disasm = options->dump_shader \|\| options->record_ir;

	std::string disasm;
	if (get_disasm)
	disasm = get_disasm_string(program.get(), code, exec_size);

	(*build_prolog)(binary, config.num_sgprs, config.num_vgprs, code.data(), code.size(),
	disasm.data(), disasm.size());
	}

	void
	aco_compile_ps_epilog(const struct aco_compiler_options* options,
	const struct aco_shader_info* info, const struct aco_ps_epilog_info* pinfo,
	const struct ac_shader_args* args, aco_shader_part_callback* build_epilog,
	void** binary)
	{
	aco_compile_shader_part(options, info, args, select_ps_epilog, (void*)pinfo, build_epilog,
	binary);
	}

	void
	aco_compile_tcs_epilog(const struct aco_compiler_options* options,
	const struct aco_shader_info* info, const struct aco_tcs_epilog_info* pinfo,
	const struct ac_shader_args* args, aco_shader_part_callback* build_epilog,
	void** binary)
	{
	aco_compile_shader_part(options, info, args, select_tcs_epilog, (void*)pinfo, build_epilog,
	binary);
	}

	void
	aco_compile_ps_prolog(const struct aco_compiler_options* options,
	const struct aco_shader_info* info, const struct aco_ps_prolog_info* pinfo,
	const struct ac_shader_args* args, aco_shader_part_callback* build_prolog,
	void** binary)
	{
	aco_compile_shader_part(options, info, args, select_ps_prolog, (void*)pinfo, build_prolog,
	binary, true);
	}

	uint64_t
	aco_get_codegen_flags()
	{
	init();
	/* Exclude flags which don't affect code generation. */
	uint64_t exclude =
	DEBUG_VALIDATE_IR \| DEBUG_VALIDATE_RA \| DEBUG_PERFWARN \| DEBUG_PERF_INFO \| DEBUG_LIVE_INFO;
	return debug_flags & ~exclude;
	}

	bool
	aco_is_gpu_supported(const struct radeon_info* info)
	{
	/* Does not support compute only cards yet. */
	return info->gfx_level >= GFX6 && info->has_graphics;
	}

	bool
	aco_nir_op_supports_packed_math_16bit(const nir_alu_instr* alu)
	{
	switch (alu->op) {
	case nir_op_f2f16: {
	nir_shader* shader = nir_cf_node_get_function(&alu->instr.block->cf_node)->function->shader;
	unsigned execution_mode = shader->info.float_controls_execution_mode;
	return (shader->options->force_f2f16_rtz && !nir_is_rounding_mode_rtne(execution_mode, 16)) \|\|
	nir_is_rounding_mode_rtz(execution_mode, 16);
	}
	case nir_op_fadd:
	case nir_op_fsub:
	case nir_op_fmul:
	case nir_op_ffma:
	case nir_op_fdiv:
	case nir_op_flrp:
	case nir_op_fabs:
	case nir_op_fneg:
	case nir_op_fsat:
	case nir_op_fmin:
	case nir_op_fmax:
	case nir_op_f2f16_rtz:
	case nir_op_iabs:
	case nir_op_iadd:
	case nir_op_iadd_sat:
	case nir_op_uadd_sat:
	case nir_op_isub:
	case nir_op_isub_sat:
	case nir_op_usub_sat:
	case nir_op_ineg:
	case nir_op_imul:
	case nir_op_imin:
	case nir_op_imax:
	case nir_op_umin:
	case nir_op_umax:
	case nir_op_fddx:
	case nir_op_fddy:
	case nir_op_fddx_fine:
	case nir_op_fddy_fine:
	case nir_op_fddx_coarse:
	case nir_op_fddy_coarse: return true;
	case nir_op_ishl: /* TODO: in NIR, these have 32bit shift operands */
	case nir_op_ishr: /* while Radeon needs 16bit operands when vectorized */
	case nir_op_ushr:
	default: return false;
	}
	}

	const aco_compiler_statistic_info* aco_statistic_infos = statistic_infos.data();