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This PR adds a `--dump-timings` flag to the `compile` subcommand (similar to the existing `--dump-mem-usage` flag), which collects timing data per compilation unit for each compilation phase. For example, on my 2020 M1 MacBook: ``` $ bazel build -c opt //toolchain $ bazel-bin/toolchain/install/run_carbon compile --phase=lower --dump-timings examples/sieve.carbon | tail ... --- filename: 'examples/sieve.carbon' nanoseconds: lex: 30792 parse: 25458 check: 226625 lower: 1136958 Total: 1419833 ... ``` Most of the changes are pretty straightforward. There were a couple I wasn't sure about though; let me know if I should change: - new `Timings` class in its own file, pretty similar to the existing `MemUsage` class - added a `timings_` field to the `CompilationUnit` class - added a `timings` field to the `Check::Unit` struct - renamed `CheckParseTree` function to `CheckParseTreeInner` for ease of timing with early `return` --------- Co-authored-by: Jon Ross-Perkins <jperkins@google.com>
43 lines
1.5 KiB
C++
43 lines
1.5 KiB
C++
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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#ifndef CARBON_TOOLCHAIN_CHECK_CHECK_H_
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#define CARBON_TOOLCHAIN_CHECK_CHECK_H_
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#include "common/ostream.h"
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#include "toolchain/base/shared_value_stores.h"
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#include "toolchain/base/timings.h"
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#include "toolchain/check/sem_ir_diagnostic_converter.h"
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#include "toolchain/diagnostics/diagnostic_emitter.h"
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#include "toolchain/lex/tokenized_buffer.h"
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#include "toolchain/parse/tree.h"
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#include "toolchain/parse/tree_and_subtrees.h"
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#include "toolchain/sem_ir/file.h"
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namespace Carbon::Check {
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// Checking information that's tracked per file.
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struct Unit {
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SharedValueStores* value_stores;
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std::optional<Timings>* timings;
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const Lex::TokenizedBuffer* tokens;
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const Parse::Tree* parse_tree;
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DiagnosticConsumer* consumer;
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// Returns a lazily constructed TreeAndSubtrees.
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std::function<const Parse::TreeAndSubtrees&()> get_parse_tree_and_subtrees;
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// The generated IR. Unset on input, set on output.
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std::optional<SemIR::File>* sem_ir;
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};
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// Checks a group of parse trees. This will use imports to decide the order of
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// checking.
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auto CheckParseTrees(
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llvm::MutableArrayRef<Unit> units,
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llvm::MutableArrayRef<Parse::NodeLocConverter> node_converters,
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bool prelude_import, llvm::raw_ostream* vlog_stream) -> void;
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} // namespace Carbon::Check
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#endif // CARBON_TOOLCHAIN_CHECK_CHECK_H_
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