mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-24 20:20:10 +01:00
Jon Ross-Perkins
f67791cfee
Move subtree sizes over to TreeAndSubtrees, using the different structure to represent the additional parse work that occurs, as well as making it clear which functions require the extra information. My intent is to make it hard to use this by accident. The subtree size is still tracked during Parse::Tree construction. I think a lot of that can be cleaned up, although we use it during placeholder assignment so it may take some work. I wanted to see what people thought about this before taking action on such a change. I'm using a 1m line source file generated by #4124 for testing. Command is `time bazel-bin/toolchain/install/prefix_root/bin/carbon compile --phase=check --dump-mem-usage ~/tmp/data.carbon` At head, what I'm seeing is: ``` ... parse_tree_.node_impls_: used_bytes: 61516116 reserved_bytes: 61516116 ... Total: used_bytes: 447814230 reserved_bytes: 551663894 ... 1.43s user 0.14s system 99% cpu 1.565 total ``` With `Tree::Verify` disabled completely, it looks like: ``` parse_tree_.node_impls_: used_bytes: 41010744 reserved_bytes: 41010744 ... Total: used_bytes: 427308858 reserved_bytes: 531158522 ... 1.20s user 0.13s system 99% cpu 1.332 total ``` Re-enabling just the basic verification (what is now `Tree::Verify`), I'm seeing maybe 0.05s slower, but that's within noise for my system. I do see variability in my timing results, and overall I think this is a 0.2s +/- 0.1s improvement versus the earlier (always testing `Extract` code) implementation. That's opt; debug builds will be unaffected, because the same checking occurs as before. Note, the subtree size is a third of the node representation, which is why I'm showing the decrease in memory usage here.
197 lines
4.5 KiB
Python
197 lines
4.5 KiB
Python
# 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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load("@rules_cc//cc:defs.bzl", "cc_library", "cc_test")
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load("//testing/fuzzing:rules.bzl", "cc_fuzz_test")
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package(default_visibility = ["//visibility:public"])
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filegroup(
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name = "testdata",
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data = glob(["testdata/**/*.carbon"]),
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)
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cc_library(
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name = "node_kind",
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srcs = ["node_kind.cpp"],
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hdrs = [
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"node_ids.h",
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"node_kind.h",
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"typed_nodes.h",
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],
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textual_hdrs = ["node_kind.def"],
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deps = [
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"//common:check",
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"//common:enum_base",
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"//common:ostream",
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"//toolchain/base:index_base",
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"//toolchain/lex:token_index",
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"//toolchain/lex:token_kind",
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"@llvm-project//llvm:Support",
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],
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)
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cc_test(
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name = "typed_nodes_test",
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size = "small",
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srcs = ["typed_nodes_test.cpp"],
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deps = [
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":node_kind",
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":parse",
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":tree",
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"//testing/base:gtest_main",
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"//toolchain/diagnostics:diagnostic_emitter",
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"//toolchain/diagnostics:mocks",
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"//toolchain/lex",
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"//toolchain/lex:tokenized_buffer",
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"@googletest//:gtest",
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],
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)
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cc_library(
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name = "context",
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srcs = ["context.cpp"],
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hdrs = ["context.h"],
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deps = [
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":node_kind",
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":precedence",
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":state",
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":tree",
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"//common:check",
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"//common:ostream",
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"//common:vlog",
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"//toolchain/lex:token_kind",
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"//toolchain/lex:tokenized_buffer",
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"@llvm-project//llvm:Support",
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],
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)
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cc_library(
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name = "parse",
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srcs = ["parse.cpp"] +
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# Glob handler files to avoid missing any.
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glob([
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"handle_*.cpp",
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]),
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hdrs = [
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"handle.h",
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"parse.h",
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],
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deps = [
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":context",
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":node_kind",
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":state",
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":tree",
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"//common:check",
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"//common:ostream",
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"//toolchain/base:pretty_stack_trace_function",
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"//toolchain/base:value_store",
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"//toolchain/diagnostics:diagnostic_emitter",
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"//toolchain/lex:token_kind",
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"//toolchain/lex:tokenized_buffer",
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],
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)
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cc_library(
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name = "state",
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srcs = ["state.cpp"],
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hdrs = ["state.h"],
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textual_hdrs = ["state.def"],
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deps = ["//common:enum_base"],
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)
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cc_library(
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name = "tree",
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srcs = [
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"extract.cpp",
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"tree.cpp",
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"tree_and_subtrees.cpp",
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],
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hdrs = [
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"tree.h",
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"tree_and_subtrees.h",
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],
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deps = [
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":node_kind",
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"//common:check",
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"//common:error",
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"//common:ostream",
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"//common:struct_reflection",
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"//toolchain/lex:tokenized_buffer",
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"@llvm-project//llvm:Support",
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],
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)
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cc_test(
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name = "tree_test",
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size = "small",
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srcs = ["tree_test.cpp"],
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deps = [
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":node_kind",
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":parse",
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":tree",
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"//common:ostream",
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"//testing/base:gtest_main",
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"//testing/base:test_raw_ostream",
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"//toolchain/base:value_store",
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"//toolchain/diagnostics:diagnostic_emitter",
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"//toolchain/diagnostics:mocks",
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"//toolchain/lex",
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"//toolchain/lex:tokenized_buffer",
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"//toolchain/testing:yaml_test_helpers",
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"@googletest//:gtest",
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"@llvm-project//llvm:Support",
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],
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)
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cc_fuzz_test(
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name = "parse_fuzzer",
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size = "small",
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srcs = ["parse_fuzzer.cpp"],
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corpus = glob(["fuzzer_corpus/*"]),
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deps = [
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":parse",
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"//common:check",
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"//testing/fuzzing:libfuzzer_header",
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"//toolchain/base:value_store",
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"//toolchain/diagnostics:diagnostic_emitter",
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"//toolchain/diagnostics:null_diagnostics",
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"//toolchain/lex",
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"@llvm-project//llvm:Support",
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],
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)
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cc_library(
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name = "tree_node_diagnostic_converter",
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hdrs = ["tree_node_diagnostic_converter.h"],
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deps = [
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":tree",
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"//toolchain/diagnostics:diagnostic_emitter",
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"//toolchain/lex:tokenized_buffer",
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],
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)
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cc_library(
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name = "precedence",
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srcs = ["precedence.cpp"],
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hdrs = ["precedence.h"],
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deps = [
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"//common:check",
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"//toolchain/lex:token_kind",
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"@llvm-project//llvm:Support",
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],
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)
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cc_test(
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name = "precedence_test",
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size = "small",
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srcs = ["precedence_test.cpp"],
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deps = [
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":precedence",
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"//testing/base:gtest_main",
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"//toolchain/lex:token_kind",
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"@googletest//:gtest",
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],
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)
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