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b1544352c0
Adds these statistics: - hash of code and constant data - number of instructions - number of copies from pseudo-instructions - number of branches - estimate of cycles spent not waiting in s_waitcnt - number of vmem/smem "clauses" - sgpr/vgpr usage before scheduling Signed-off-by: Rhys Perry <pendingchaos02@gmail.com> Acked-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl> Reviewed-by: Daniel Schürmann <daniel@schuermann.dev> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/2965>
88 lines
3.5 KiB
C++
88 lines
3.5 KiB
C++
/*
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* Copyright © 2020 Valve Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*
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*/
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#include "aco_ir.h"
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#include "util/crc32.h"
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namespace aco {
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/* sgpr_presched/vgpr_presched */
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void collect_presched_stats(Program *program)
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{
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RegisterDemand presched_demand;
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for (Block& block : program->blocks)
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presched_demand.update(block.register_demand);
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program->statistics[statistic_sgpr_presched] = presched_demand.sgpr;
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program->statistics[statistic_vgpr_presched] = presched_demand.vgpr;
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}
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/* instructions/branches/vmem_clauses/smem_clauses/cycles */
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void collect_preasm_stats(Program *program)
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{
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for (Block& block : program->blocks) {
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std::set<Temp> vmem_clause_res;
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std::set<Temp> smem_clause_res;
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program->statistics[statistic_instructions] += block.instructions.size();
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for (aco_ptr<Instruction>& instr : block.instructions) {
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if (instr->format == Format::SOPP && static_cast<SOPP_instruction*>(instr.get())->block != -1)
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program->statistics[statistic_branches]++;
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if (instr->opcode == aco_opcode::p_constaddr)
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program->statistics[statistic_instructions] += 2;
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if (instr->isVMEM() && !instr->operands.empty()) {
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vmem_clause_res.insert(instr->operands[0].getTemp());
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} else {
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program->statistics[statistic_vmem_clauses] += vmem_clause_res.size();
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vmem_clause_res.clear();
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}
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if (instr->format == Format::SMEM && !instr->operands.empty()) {
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if (instr->operands[0].size() == 2)
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smem_clause_res.insert(Temp(0, s2));
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else
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smem_clause_res.insert(instr->operands[0].getTemp());
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} else {
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program->statistics[statistic_smem_clauses] += smem_clause_res.size();
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smem_clause_res.clear();
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}
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/* TODO: this incorrectly assumes instructions always take 4 cycles */
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/* assume loops execute 4 times (TODO: it would be nice to be able to consider loop unrolling) */
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unsigned iter = 1 << (block.loop_nest_depth * 2);
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program->statistics[statistic_cycles] += 4 * iter;
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}
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program->statistics[statistic_vmem_clauses] += vmem_clause_res.size();
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program->statistics[statistic_smem_clauses] += smem_clause_res.size();
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}
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}
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void collect_postasm_stats(Program *program, const std::vector<uint32_t>& code)
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{
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program->statistics[aco::statistic_hash] = util_hash_crc32(code.data(), code.size() * 4);
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}
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}
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