vasilito
cb424d7448
verify-patch-sanity.py validates every active recipe .patch has internally- consistent hunk line counts — catching the 'malformed patch at line N' failure at commit/CI/preflight time instead of hours into a cook. This cycle hit that class three times (qtwaylandscanner, sddm, xwayland), each only discovered when cookbook tried to apply the patch. Running it across the repo found 29 latent malformed patches (validated against GNU patch: e.g. relibc/P3-sysv-ipc reproduces 'malformed patch at line 22'). They were harmless only because they sit in vendored recipes (baked, not re- applied) — but would fail on any version-bump re-derivation. --fix recounts the hunk headers (body untouched) and repaired all 29. Wired into build-preflight.sh (Phase 1.0D) and redbear-ci.yml, with a unit test (test-patch-sanity.sh). Skips archived/legacy trees and unvalidatable formats (empty placeholders, bare-@@ git hunks).
118 lines
5.0 KiB
C++
118 lines
5.0 KiB
C++
#include "LibcBenchmark.h"
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#include "LibcMemoryBenchmark.h"
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#include "MemorySizeDistributions.h"
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#include "benchmark/benchmark.h"
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#include "llvm/ADT/ArrayRef.h"
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#include "llvm/ADT/Twine.h"
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#include <chrono>
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#include <cstdint>
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#include <random>
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#include <vector>
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using llvm::Align;
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using llvm::ArrayRef;
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using llvm::Twine;
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using llvm::libc_benchmarks::BzeroConfiguration;
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using llvm::libc_benchmarks::ComparisonSetup;
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using llvm::libc_benchmarks::CopySetup;
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using llvm::libc_benchmarks::MemcmpOrBcmpConfiguration;
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using llvm::libc_benchmarks::MemcpyConfiguration;
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using llvm::libc_benchmarks::MemmoveConfiguration;
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using llvm::libc_benchmarks::MemorySizeDistribution;
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using llvm::libc_benchmarks::MemsetConfiguration;
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using llvm::libc_benchmarks::MoveSetup;
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using llvm::libc_benchmarks::OffsetDistribution;
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using llvm::libc_benchmarks::SetSetup;
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// Alignment to use for when accessing the buffers.
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static constexpr Align kBenchmarkAlignment = Align::Constant<1>();
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static std::mt19937_64 &getGenerator() {
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static std::mt19937_64 Generator(
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std::chrono::system_clock::now().time_since_epoch().count());
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return Generator;
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}
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template <typename SetupType, typename ConfigurationType> struct Runner {
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Runner(benchmark::State &S, llvm::ArrayRef<ConfigurationType> Configurations)
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: State(S), Distribution(SetupType::getDistributions()[State.range(0)]),
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Probabilities(Distribution.Probabilities),
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SizeSampler(Probabilities.begin(), Probabilities.end()),
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OffsetSampler(Setup.BufferSize, Probabilities.size() - 1,
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kBenchmarkAlignment),
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Configuration(Configurations[State.range(1)]) {
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for (auto &P : Setup.Parameters) {
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P.OffsetBytes = OffsetSampler(getGenerator());
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P.SizeBytes = SizeSampler(getGenerator());
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Setup.checkValid(P);
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}
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}
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~Runner() {
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const size_t TotalBytes =
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(State.iterations() * Setup.getBatchBytes()) / Setup.BatchSize;
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State.SetBytesProcessed(TotalBytes);
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State.SetItemsProcessed(State.iterations());
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State.SetLabel((Twine(Configuration.Name) + "," + Distribution.Name).str());
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State.counters["bytes_per_cycle"] = benchmark::Counter(
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TotalBytes / benchmark::CPUInfo::Get().cycles_per_second,
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benchmark::Counter::kIsRate);
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}
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inline void runBatch() {
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for (const auto &P : Setup.Parameters)
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benchmark::DoNotOptimize(Setup.Call(P, Configuration.Function));
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}
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size_t getBatchSize() const { return Setup.BatchSize; }
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private:
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SetupType Setup;
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benchmark::State &State;
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MemorySizeDistribution Distribution;
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ArrayRef<double> Probabilities;
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std::discrete_distribution<unsigned> SizeSampler;
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OffsetDistribution OffsetSampler;
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ConfigurationType Configuration;
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};
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#define BENCHMARK_MEMORY_FUNCTION(BM_NAME, SETUP, CONFIGURATION_TYPE, \
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CONFIGURATION_ARRAY_REF) \
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void BM_NAME(benchmark::State &State) { \
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Runner<SETUP, CONFIGURATION_TYPE> Setup(State, CONFIGURATION_ARRAY_REF); \
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const size_t BatchSize = Setup.getBatchSize(); \
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while (State.KeepRunningBatch(BatchSize)) \
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Setup.runBatch(); \
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} \
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BENCHMARK(BM_NAME)->Apply([](benchmark::internal::Benchmark *benchmark) { \
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const int64_t DistributionSize = SETUP::getDistributions().size(); \
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const int64_t ConfigurationSize = CONFIGURATION_ARRAY_REF.size(); \
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for (int64_t DistIndex = 0; DistIndex < DistributionSize; ++DistIndex) \
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for (int64_t ConfIndex = 0; ConfIndex < ConfigurationSize; ++ConfIndex) \
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benchmark->Args({DistIndex, ConfIndex}); \
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})
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extern llvm::ArrayRef<MemcpyConfiguration> getMemcpyConfigurations();
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BENCHMARK_MEMORY_FUNCTION(BM_Memcpy, CopySetup, MemcpyConfiguration,
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getMemcpyConfigurations());
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extern llvm::ArrayRef<MemmoveConfiguration> getMemmoveConfigurations();
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BENCHMARK_MEMORY_FUNCTION(BM_Memmove, MoveSetup, MemmoveConfiguration,
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getMemmoveConfigurations());
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extern llvm::ArrayRef<MemcmpOrBcmpConfiguration> getMemcmpConfigurations();
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BENCHMARK_MEMORY_FUNCTION(BM_Memcmp, ComparisonSetup, MemcmpOrBcmpConfiguration,
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getMemcmpConfigurations());
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extern llvm::ArrayRef<MemcmpOrBcmpConfiguration> getBcmpConfigurations();
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BENCHMARK_MEMORY_FUNCTION(BM_Bcmp, ComparisonSetup, MemcmpOrBcmpConfiguration,
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getBcmpConfigurations());
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extern llvm::ArrayRef<MemsetConfiguration> getMemsetConfigurations();
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BENCHMARK_MEMORY_FUNCTION(BM_Memset, SetSetup, MemsetConfiguration,
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getMemsetConfigurations());
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extern llvm::ArrayRef<BzeroConfiguration> getBzeroConfigurations();
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BENCHMARK_MEMORY_FUNCTION(BM_Bzero, SetSetup, BzeroConfiguration,
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getBzeroConfigurations());
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