[libc++][format][1/7] Adds more benchmarks. #101803
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@llvm/pr-subscribers-libcxx Author: Mark de Wever (mordante) ChangesThis patch is the start of a series to improve the speed of std::format, std::format_to, std::format_to_n, and std::formatted_size. This is mostly achieved by changing the __output_buffer class. This new __output_buffer class also makes it easier to implement buffering for P3107R5 "Permit an efficient implementation of std::print" Patch is 22.06 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/101803.diff 4 Files Affected:
diff --git a/libcxx/test/benchmarks/CMakeLists.txt b/libcxx/test/benchmarks/CMakeLists.txt
index d61367a367738..6849305257ab0 100644
--- a/libcxx/test/benchmarks/CMakeLists.txt
+++ b/libcxx/test/benchmarks/CMakeLists.txt
@@ -146,6 +146,9 @@ set(BENCHMARK_TESTS
deque_iterator.bench.cpp
exception_ptr.bench.cpp
filesystem.bench.cpp
+ format/write_double_comparison.bench.cpp
+ format/write_int_comparison.bench.cpp
+ format/write_string_comparison.bench.cpp
format_to_n.bench.cpp
format_to.bench.cpp
format.bench.cpp
diff --git a/libcxx/test/benchmarks/format/write_double_comparison.bench.cpp b/libcxx/test/benchmarks/format/write_double_comparison.bench.cpp
new file mode 100644
index 0000000000000..29851d02fa600
--- /dev/null
+++ b/libcxx/test/benchmarks/format/write_double_comparison.bench.cpp
@@ -0,0 +1,106 @@
+//===----------------------------------------------------------------------===//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include <array>
+#include <charconv>
+#include <cstdio>
+#include <format>
+#include <iterator>
+#include <list>
+#include <random>
+#include <vector>
+
+#include "benchmark/benchmark.h"
+
+std::array data = [] {
+ std::uniform_real_distribution<double> distribution;
+ std::mt19937 generator;
+ std::array<double, 1000> result;
+ std::generate_n(result.begin(), result.size(), [&] { return distribution(generator); });
+ return result;
+}();
+
+static void BM_sprintf(benchmark::State& state) {
+ std::array<char, 100> output;
+ while (state.KeepRunningBatch(data.size()))
+ for (auto value : data)
+ benchmark::DoNotOptimize(sprintf(output.data(), "%f", value));
+}
+
+static void BM_to_string(benchmark::State& state) {
+ while (state.KeepRunningBatch(data.size()))
+ for (auto value : data)
+ benchmark::DoNotOptimize(std::to_string(value));
+}
+
+static void BM_to_chars(benchmark::State& state) {
+ std::array<char, 100> output;
+
+ while (state.KeepRunningBatch(data.size()))
+ for (auto value : data)
+ benchmark::DoNotOptimize(std::to_chars(output.data(), output.data() + output.size(), value));
+}
+
+static void BM_to_chars_as_string(benchmark::State& state) {
+ std::array<char, 100> output;
+
+ while (state.KeepRunningBatch(data.size()))
+ for (auto value : data) {
+ char* end = std::to_chars(output.data(), output.data() + output.size(), value).ptr;
+ std::string s{output.data(), end};
+ benchmark::DoNotOptimize(s);
+ }
+}
+
+static void BM_format(benchmark::State& state) {
+ while (state.KeepRunningBatch(data.size()))
+ for (auto value : data)
+ benchmark::DoNotOptimize(std::format("{}", value));
+}
+
+template <class C>
+static void BM_format_to_back_inserter(benchmark::State& state) {
+ while (state.KeepRunningBatch(data.size()))
+ for (auto value : data) {
+ C c;
+ std::format_to(std::back_inserter(c), "{}", value);
+ benchmark::DoNotOptimize(c);
+ }
+}
+
+template <class F>
+static void BM_format_to_iterator(benchmark::State& state, F&& f) {
+ auto output = f();
+ while (state.KeepRunningBatch(data.size()))
+ for (auto value : data)
+ benchmark::DoNotOptimize(std::format_to(std::begin(output), "{}", value));
+}
+
+BENCHMARK(BM_sprintf);
+BENCHMARK(BM_to_string);
+BENCHMARK(BM_to_chars);
+BENCHMARK(BM_to_chars_as_string);
+BENCHMARK(BM_format);
+BENCHMARK_TEMPLATE(BM_format_to_back_inserter, std::string);
+BENCHMARK_TEMPLATE(BM_format_to_back_inserter, std::vector<char>);
+BENCHMARK_TEMPLATE(BM_format_to_back_inserter, std::list<char>);
+BENCHMARK_CAPTURE(BM_format_to_iterator, <std::array>, ([] {
+ std::array<char, 100> a;
+ return a;
+ }));
+BENCHMARK_CAPTURE(BM_format_to_iterator, <std::string>, ([] {
+ std::string s;
+ s.resize(100);
+ return s;
+ }));
+BENCHMARK_CAPTURE(BM_format_to_iterator, <std::vector>, ([] {
+ std::vector<char> v;
+ v.resize(100);
+ return v;
+ }));
+
+BENCHMARK_MAIN();
diff --git a/libcxx/test/benchmarks/format/write_int_comparison.bench.cpp b/libcxx/test/benchmarks/format/write_int_comparison.bench.cpp
new file mode 100644
index 0000000000000..6390558fbc6e7
--- /dev/null
+++ b/libcxx/test/benchmarks/format/write_int_comparison.bench.cpp
@@ -0,0 +1,106 @@
+//===----------------------------------------------------------------------===//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include <array>
+#include <charconv>
+#include <cstdio>
+#include <format>
+#include <iterator>
+#include <list>
+#include <random>
+#include <vector>
+
+#include "benchmark/benchmark.h"
+
+std::array data = [] {
+ std::uniform_int_distribution<int> distribution{std::numeric_limits<int>::min(), std::numeric_limits<int>::max()};
+ std::mt19937 generator;
+ std::array<int, 1000> result;
+ std::generate_n(result.begin(), result.size(), [&] { return distribution(generator); });
+ return result;
+}();
+
+static void BM_sprintf(benchmark::State& state) {
+ std::array<char, 100> output;
+ while (state.KeepRunningBatch(data.size()))
+ for (auto value : data)
+ benchmark::DoNotOptimize(sprintf(output.data(), "%d", value));
+}
+
+static void BM_to_string(benchmark::State& state) {
+ while (state.KeepRunningBatch(data.size()))
+ for (auto value : data)
+ benchmark::DoNotOptimize(std::to_string(value));
+}
+
+static void BM_to_chars(benchmark::State& state) {
+ std::array<char, 100> output;
+
+ while (state.KeepRunningBatch(data.size()))
+ for (auto value : data)
+ benchmark::DoNotOptimize(std::to_chars(output.data(), output.data() + output.size(), value));
+}
+
+static void BM_to_chars_as_string(benchmark::State& state) {
+ std::array<char, 100> output;
+
+ while (state.KeepRunningBatch(data.size()))
+ for (auto value : data) {
+ char* end = std::to_chars(output.data(), output.data() + output.size(), value).ptr;
+ std::string s{output.data(), end};
+ benchmark::DoNotOptimize(s);
+ }
+}
+
+static void BM_format(benchmark::State& state) {
+ while (state.KeepRunningBatch(data.size()))
+ for (auto value : data)
+ benchmark::DoNotOptimize(std::format("{}", value));
+}
+
+template <class C>
+static void BM_format_to_back_inserter(benchmark::State& state) {
+ while (state.KeepRunningBatch(data.size()))
+ for (auto value : data) {
+ C c;
+ std::format_to(std::back_inserter(c), "{}", value);
+ benchmark::DoNotOptimize(c);
+ }
+}
+
+template <class F>
+static void BM_format_to_iterator(benchmark::State& state, F&& f) {
+ auto output = f();
+ while (state.KeepRunningBatch(data.size()))
+ for (auto value : data)
+ benchmark::DoNotOptimize(std::format_to(std::begin(output), "{}", value));
+}
+
+BENCHMARK(BM_sprintf);
+BENCHMARK(BM_to_string);
+BENCHMARK(BM_to_chars);
+BENCHMARK(BM_to_chars_as_string);
+BENCHMARK(BM_format);
+BENCHMARK_TEMPLATE(BM_format_to_back_inserter, std::string);
+BENCHMARK_TEMPLATE(BM_format_to_back_inserter, std::vector<char>);
+BENCHMARK_TEMPLATE(BM_format_to_back_inserter, std::list<char>);
+BENCHMARK_CAPTURE(BM_format_to_iterator, <std::array>, ([] {
+ std::array<char, 100> a;
+ return a;
+ }));
+BENCHMARK_CAPTURE(BM_format_to_iterator, <std::string>, ([] {
+ std::string s;
+ s.resize(100);
+ return s;
+ }));
+BENCHMARK_CAPTURE(BM_format_to_iterator, <std::vector>, ([] {
+ std::vector<char> v;
+ v.resize(100);
+ return v;
+ }));
+
+BENCHMARK_MAIN();
diff --git a/libcxx/test/benchmarks/format/write_string_comparison.bench.cpp b/libcxx/test/benchmarks/format/write_string_comparison.bench.cpp
new file mode 100644
index 0000000000000..e32bee08a7ca8
--- /dev/null
+++ b/libcxx/test/benchmarks/format/write_string_comparison.bench.cpp
@@ -0,0 +1,220 @@
+//===----------------------------------------------------------------------===//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include <array>
+#include <concepts>
+#include <cstdio>
+#include <deque>
+#include <format>
+#include <iterator>
+#include <list>
+#include <string>
+#include <string_view>
+#include <vector>
+
+#include "benchmark/benchmark.h"
+#include "test_macros.h"
+
+const char* c_string_6_characters = "abcdef";
+const char* c_string_60_characters = "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef";
+const char* c_string_6000_characters =
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"
+ "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef"; // 100 lines
+
+std::string string_6_characters = c_string_6_characters;
+std::string string_60_characters = c_string_60_characters;
+std::string string_6000_characters = c_string_6000_characters;
+
+std::string_view string_view_6_characters = c_string_6_characters;
+std::string_view string_view_60_characters = c_string_60_characters;
+std::string_view string_view_6000_characters = c_string_6000_characters;
+
+static void BM_sprintf(benchmark::State& state, const char* value) {
+ std::array<char, 10'000> output;
+ for (auto _ : state)
+ benchmark::DoNotOptimize(sprintf(output.data(), "%s", value));
+}
+
+template <class T>
+static void BM_format(benchmark::State& state, const T& value) {
+ for (auto _ : state)
+ benchmark::DoNotOptimize(std::format("{}", value));
+}
+
+template <class C, class T>
+static void BM_format_to_back_inserter(benchmark::State& state, const T& value) {
+ for (auto _ : state) {
+ C c;
+ std::format_to(std::back_inserter(c), "{}", value);
+ benchmark::DoNotOptimize(c);
+ }
+}
+
+template <class T, class F>
+static void BM_format_to_iterator(benchmark::State& state, const T& value, F&& f) {
+ auto output = f();
+ for (auto _ : state) {
+ benchmark::DoNotOptimize(std::format_to(std::begin(output), "{}", value));
+ }
+}
+
+#define FORMAT_BENCHMARKS(name, variable) \
+ BENCHMARK_CAPTURE(BM_format, name, variable); \
+ \
+ BENCHMARK_TEMPLATE1_CAPTURE(BM_format_to_back_inserter, std::string, name, variable); \
+ BENCHMARK_TEMPLATE1_CAPTURE(BM_format_to_back_inserter, std::vector<char>, name, variable); \
+ BENCHMARK_TEMPLATE1_CAPTURE(BM_format_to_back_inserter, std::deque<char>, name, variable); \
+ BENCHMARK_TEMPLATE1_CAPTURE(BM_format_to_back_inserter, std::list<char>, name, variable); \
+ \
+ BENCHMARK_CAPTURE(BM_format_to_iterator, <std::array> name, variable, ([] { \
+ std::array<char, 10'000> a; \
+ return a; \
+ })); \
+ BENCHMARK_CAPTURE(BM_format_to_iterator, <std::string> name, variable, ([] { \
+ std::string s; \
+ s.resize(10'000); \
+ return s; \
+ })); \
+ BENCHMARK_CAPTURE(BM_format_to_iterator, <std::vector> name, variable, ([] { \
+ std::vector<char> v; \
+ v.resize(10'000); \
+ return v; \
+ })); \
+ BENCHMARK_CAPTURE(BM_format_to_iterator, <std::deque> name, variable, ([] { \
+ std::deque<char> d; \
+ d.resize(10'000); ...
[truncated]
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libcxx/test/benchmarks/format/write_string_comparison.bench.cpp
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This patch is the start of a series to improve the speed of std::format, std::format_to, std::format_to_n, and std::formatted_size. This is mostly achieved by changing the __output_buffer class. This new __output_buffer class also makes it easier to implement buffering for P3107R5 "Permit an efficient implementation of std::print"
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Oct 6, 2024
* commit 'FETCH_HEAD': [X86] combineAndLoadToBZHI - don't do an return early return if we fail to match a load [X86] replace-load-and-with-bzhi.ll - add commuted test cases to show failure to fold [X86] replace-load-and-with-bzhi.ll - cleanup check-prefixes to use X86/X64 for 32/64-bit targets [ExecutionEngine] Avoid repeated hash lookups (NFC) (llvm#111275) [ByteCode] Avoid repeated hash lookups (NFC) (llvm#111273) [StaticAnalyzer] Avoid repeated hash lookups (NFC) (llvm#111272) [CodeGen] Avoid repeated hash lookups (NFC) (llvm#111274) [RISCV] Simplify fixed-vector-fp.ll run lines. NFC [libc++][format][1/3] Adds more benchmarks. (llvm#101803) [X86] combineOrXorWithSETCC - avoid duplicate SDLoc/operands code. NFC. [X86] convertIntLogicToFPLogic - avoid duplicate SDLoc/operands code. NFC. [libc] Clean up some include in `libc`. (llvm#110980) [X86] combineBitOpWithPACK - avoid duplicate SDLoc/operands code. NFC. [X86] combineBitOpWithMOVMSK - avoid duplicate SDLoc/operands code. NFC. [X86] combineBitOpWithShift - avoid duplicate SDLoc/operands code. NFC. [x86] combineMul - use computeKnownBits directly to find MUL_IMM constant splat. [X86] combineSubABS - avoid duplicate SDLoc. NFC. [ValueTypes][RISCV] Add v1bf16 type (llvm#111112) [VPlan] Add additional FOR hoisting test. [clang-tidy] Create bugprone-bitwise-pointer-cast check (llvm#108083) [InstCombine] Canonicalize more geps with constant gep bases and constant offsets. (llvm#110033) [LV] Honor uniform-after-vectorization in setVectorizedCallDecision. [ELF] Pass Ctx & to Arch/ [ELF] Pass Ctx & to Arch/ [libc++] Fix a typo (llvm#111239) [X86] For minsize memset/memcpy, use byte or double-word accesses (llvm#87003) [RISCV] Unify RVBShift_ri and RVBShiftW_ri with Shift_ri and ShiftW_ri. NFC (llvm#111263) Revert "Reapply "[AMDGPU][GlobalISel] Fix load/store of pointer vectors, buffer.*.pN (llvm#110714)" (llvm#111059)" [libc] Add missing include to __support/StringUtil/tables/stdc_errors.h. (llvm#111271) [libc] remove errno.h includes (llvm#110934) [NFC][rtsan] Update docs to include [[clang::blocking]] (llvm#111249) [RISCV] Give ZEXT_H_RV32 and ZEXT_H_RV64 R-type format to match PACK. NFC [mlir][SPIRV] Fix build (2) (llvm#111265) [mlir][SPIRV] Fix build error (llvm#111264) [mlir][NFC] Mark type converter in `populate...` functions as `const` (llvm#111250) [Basic] Avoid repeated hash lookups (NFC) (llvm#111228) [RISCV] Use THShift_ri class instead of RVBShift_ri for TH_TST instruction. NFC [VPlan] Only generate first lane for VPPredInstPHI if no others used. [ELF] Don't call getPPC64TargetInfo outside Driver. NFC [GISel] Don't preserve NSW flag when converting G_MUL of INT_MIN to G_SHL. (llvm#111230) [APInt] Slightly simplify APInt::ashrSlowCase. NFC (llvm#111220) [Sema] Avoid repeated hash lookups (NFC) (llvm#111227) [Affine] Avoid repeated hash lookups (NFC) (llvm#111226) [Driver] Avoid repeated hash lookups (NFC) (llvm#111225) [clang][test] Remove a broken bytecode test [ELF] Pass Ctx & [ELF] Pass Ctx & to Relocations Signed-off-by: kyvangka1610 <[email protected]>
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This patch is the start of a series to improve the speed of std::format, std::format_to, std::format_to_n, and std::formatted_size.
This is mostly achieved by changing the __output_buffer class. This new __output_buffer class also makes it easier to implement buffering for P3107R5 "Permit an efficient implementation of std::print"