Use llvm 19 for macos package

CMakeLists.txt

@@ -31,19 +31,11 @@ if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
                                                "MinSizeRel" "RelWithDebInfo")
 endif()
 
-add_compile_options(
+add_compile_options(-fdata-sections -ffunction-sections -Wswitch-enum
-  -Werror=switch-enum -Wswitch-enum -fPIC -fdata-sections -ffunction-sections
+                    -Werror=switch-enum -fPIC)
-  -fno-jump-tables # https://github.com/llvm/llvm-project/issues/54247
-)
 
 if(CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
   add_link_options("-Wno-unused-command-line-argument")
-  find_program(LLVM_OBJCOPY llvm-objcopy)
-  if(LLVM_OBJCOPY)
-    set(CMAKE_OBJCOPY
-        ${LLVM_OBJCOPY}
-        CACHE FILEPATH "path to objcopy binary" FORCE)
-  endif()
 endif()
 
 if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
@@ -64,21 +56,6 @@ if(HAS_FULL_RELRO)
 endif()
 cmake_pop_check_state()
 
-if(CMAKE_SYSTEM_PROCESSOR STREQUAL aarch64)
-  add_compile_options(-mbranch-protection=standard)
-else()
-  add_compile_options(-fcf-protection)
-  set(rewrite_endbr_flags "-fuse-ld=mold;LINKER:-z,rewrite-endbr")
-  cmake_push_check_state()
-  list(APPEND CMAKE_REQUIRED_LINK_OPTIONS ${rewrite_endbr_flags})
-  check_cxx_source_compiles("int main(){}" HAS_REWRITE_ENDBR FAIL_REGEX
-                            "warning:")
-  if(HAS_REWRITE_ENDBR)
-    add_link_options(${rewrite_endbr_flags})
-  endif()
-  cmake_pop_check_state()
-endif()
-
 set(version_script_flags
     LINKER:--version-script=${CMAKE_CURRENT_SOURCE_DIR}/linker.map)
 cmake_push_check_state()
@@ -346,8 +323,7 @@ if(CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR AND BUILD_TESTING)
   # c++98
   add_executable(conflict_set_cxx_api_test conflict_set_cxx_api_test.cpp)
   target_compile_options(conflict_set_cxx_api_test PRIVATE ${TEST_FLAGS})
-  target_link_libraries(conflict_set_cxx_api_test
+  target_link_libraries(conflict_set_cxx_api_test PRIVATE ${PROJECT_NAME})
-                        PRIVATE ${PROJECT_NAME}-static)
   set_target_properties(conflict_set_cxx_api_test PROPERTIES CXX_STANDARD 98)
   set_target_properties(conflict_set_cxx_api_test
                         PROPERTIES CXX_STANDARD_REQUIRED ON)
@@ -380,15 +356,6 @@ if(CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR AND BUILD_TESTING)
         ${symbol_imports})
   endif()
 
-  if(NOT CMAKE_CROSSCOMPILING)
-    find_program(HARDENING_CHECK hardening-check)
-    if(HARDENING_CHECK)
-      add_test(NAME hardening_check
-               COMMAND ${HARDENING_CHECK} $<TARGET_FILE:${PROJECT_NAME}>
-                       --nofortify --nostackprotector)
-    endif()
-  endif()
-
   # bench
   add_executable(conflict_set_bench Bench.cpp)
   target_link_libraries(conflict_set_bench PRIVATE ${PROJECT_NAME} nanobench)

ConflictSet.cpp

@@ -3183,12 +3183,6 @@ Node *firstGeqPhysical(Node *n, const TrivialSpan key) {
 #define PRESERVE_NONE
 #endif
 
-#if __has_attribute(musttail) && __has_attribute(preserve_none)
-constexpr bool kEnableInterleaved = true;
-#else
-constexpr bool kEnableInterleaved = false;
-#endif
-
 namespace check {
 
 typedef PRESERVE_NONE void (*Continuation)(struct Job *, struct Context *);
@@ -4975,50 +4969,51 @@ struct __attribute__((visibility("hidden"))) ConflictSet::Impl {
     check::Context context;
     context.readContext.impl = this;
 
-    if constexpr (kEnableInterleaved) {
+#if __has_attribute(musttail)
-      if (count == 1) {
+    if (count == 1) {
-        useSequential(reads, result, count, context);
+      useSequential(reads, result, count, context);
-      } else {
+    } else {
-        constexpr int kConcurrent = 16;
+      constexpr int kConcurrent = 16;
-        check::Job inProgress[kConcurrent];
+      check::Job inProgress[kConcurrent];
-        context.count = count;
+      context.count = count;
-        context.oldestVersionFullPrecision = oldestVersionFullPrecision;
+      context.oldestVersionFullPrecision = oldestVersionFullPrecision;
-        context.root = root;
+      context.root = root;
-        context.queries = reads;
+      context.queries = reads;
-        context.results = result;
+      context.results = result;
-        int64_t started = std::min(kConcurrent, count);
+      int64_t started = std::min(kConcurrent, count);
-        context.started = started;
+      context.started = started;
-        for (int i = 0; i < started; i++) {
+      for (int i = 0; i < started; i++) {
-          inProgress[i].init(reads + i, result + i, root,
+        inProgress[i].init(reads + i, result + i, root,
-                             oldestVersionFullPrecision);
+                           oldestVersionFullPrecision);
-        }
+      }
-        for (int i = 0; i < started - 1; i++) {
+      for (int i = 0; i < started - 1; i++) {
-          inProgress[i].next = inProgress + i + 1;
+        inProgress[i].next = inProgress + i + 1;
-        }
+      }
-        for (int i = 1; i < started; i++) {
+      for (int i = 1; i < started; i++) {
-          inProgress[i].prev = inProgress + i - 1;
+        inProgress[i].prev = inProgress + i - 1;
-        }
+      }
-        inProgress[0].prev = inProgress + started - 1;
+      inProgress[0].prev = inProgress + started - 1;
-        inProgress[started - 1].next = inProgress;
+      inProgress[started - 1].next = inProgress;
 
-        // Kick off the sequence of tail calls that finally returns once all
+      // Kick off the sequence of tail calls that finally returns once all jobs
-        // jobs are done
+      // are done
-        inProgress->continuation(inProgress, &context);
+      inProgress->continuation(inProgress, &context);
 
 #ifndef NDEBUG
-        Arena arena;
+      Arena arena;
-        auto *results2 = new (arena) Result[count];
+      auto *results2 = new (arena) Result[count];
-        check::Context context2;
+      check::Context context2;
-        context2.readContext.impl = this;
+      context2.readContext.impl = this;
-        useSequential(reads, results2, count, context2);
+      useSequential(reads, results2, count, context2);
-        assert(memcmp(result, results2, count) == 0);
+      assert(memcmp(result, results2, count) == 0);
-        assert(context.readContext == context2.readContext);
+      assert(context.readContext == context2.readContext);
 #endif
-      }
-    } else {
-      useSequential(reads, result, count, context);
     }
 
+#else
+    useSequential(reads, result, count, context);
+#endif
+
     for (int i = 0; i < count; ++i) {
       assert(reads[i].readVersion >= 0);
       assert(reads[i].readVersion <= newestVersionFullPrecision);
@@ -5191,6 +5186,11 @@ struct __attribute__((visibility("hidden"))) ConflictSet::Impl {
     assert(allPointWrites || sorted);
 #endif
 
+#if __has_attribute(musttail)
+    constexpr bool kEnableInterleaved = true;
+#else
+    constexpr bool kEnableInterleaved = false;
+#endif
     if (kEnableInterleaved && count > 1) {
       interleavedWrites(writes, count, InternalVersionT(writeVersion));
     } else {

Dockerfile

@@ -13,14 +13,12 @@ RUN TZ=America/Los_Angeles DEBIAN_FRONTEND=noninteractive apt-get install -y \
     ccache \
     cmake \
     curl \
-    devscripts \
     g++-aarch64-linux-gnu \
     gcovr \
     git \
     gnupg \
     libc6-dbg \
     lsb-release \
-    mold \
     ninja-build \
     pre-commit \
     python3-requests \

RealDataBench.cpp

@@ -5,7 +5,7 @@
 #include <cstdio>
 #include <cstring>
 #include <fcntl.h>
-#include <string_view>
+#include <span>
 #include <sys/mman.h>
 #include <sys/stat.h>
 #include <unistd.h>
@@ -64,7 +64,7 @@ int main(int argc, const char **argv) {
     auto *const mapOriginal = begin;
     const auto sizeOriginal = size;
 
-    using StringView = std::basic_string_view<uint8_t>;
+    using StringView = std::span<const uint8_t>;
 
     StringView write;
     std::vector<StringView> reads;
@@ -78,9 +78,9 @@ int main(int argc, const char **argv) {
       end = (uint8_t *)memchr(begin, '\n', size);
 
       if (line.size() > 0 && line[0] == 'P') {
-        write = line.substr(2, line.size());
+        write = line.subspan(2, line.size());
       } else if (line.size() > 0 && line[0] == 'L') {
-        reads.push_back(line.substr(2, line.size()));
+        reads.push_back(line.subspan(2, line.size()));
       } else if (line.empty()) {
         {
           readRanges.resize(reads.size());

ServerBench.cpp

@@ -64,47 +64,31 @@ template <class... Ts> std::string tupleKey(const Ts &...ts) {
   return result;
 }
 
-constexpr int kTotalKeyRange = 1'000'000'000;
+constexpr int kWindowSize = 300000;
-constexpr int kWindowSize = 1'000'000;
-constexpr int kNumKeys = 10;
 
 void workload(weaselab::ConflictSet *cs) {
   int64_t version = kWindowSize;
+  constexpr int kNumWrites = 16;
   for (;; transactions.fetch_add(1, std::memory_order_relaxed)) {
     std::vector<int64_t> keyIndices;
-    for (int i = 0; i < kNumKeys; ++i) {
+    for (int i = 0; i < kNumWrites; ++i) {
-      keyIndices.push_back(rand() % kTotalKeyRange);
+      keyIndices.push_back(rand() % 100'000'000);
     }
     std::sort(keyIndices.begin(), keyIndices.end());
     std::vector<std::string> keys;
-    constexpr std::string_view fullString =
+    std::vector<weaselab::ConflictSet::WriteRange> writes;
-        "this is a string, where a prefix of it is used as an element of the "
+    constexpr std::string_view suffix = "this is a suffix";
-        "tuple forming the key";
+    for (int i = 0; i < kNumWrites; ++i) {
-    for (int i = 0; i < kNumKeys; ++i) {
+      keys.push_back(tupleKey(0x100, i, keyIndices[i],
-      keys.push_back(
+                              suffix.substr(0, rand() % suffix.size()),
-          tupleKey(0x100, keyIndices[i] / fullString.size(),
+                              rand()));
-                   fullString.substr(0, keyIndices[i] % fullString.size())));
       // printf("%s\n", printable(keys.back()).c_str());
     }
-
+    for (int i = 0; i < kNumWrites; ++i) {
-    std::vector<weaselab::ConflictSet::ReadRange> reads;
-    std::vector<weaselab::ConflictSet::WriteRange> writes;
-    std::vector<weaselab::ConflictSet::Result> results;
-    for (int i = 0; i < kNumKeys; ++i) {
       writes.push_back({{(const uint8_t *)keys[i].data(), int(keys[i].size())},
                         {nullptr, 0}});
-      reads.push_back({{(const uint8_t *)keys[i].data(), int(keys[i].size())},
-                       {nullptr, 0},
-                       version - kWindowSize});
     }
-    results.resize(reads.size());
+    cs->addWrites(writes.data(), writes.size(), version);
-
-    cs->check(reads.data(), results.data(), reads.size());
-    bool ok = true;
-    for (auto result : results) {
-      ok &= result == weaselab::ConflictSet::Commit;
-    }
-    cs->addWrites(writes.data(), ok ? writes.size() : 0, version);
     cs->setOldestVersion(version - kWindowSize);
     ++version;
   }

SkipList.cpp

@@ -767,9 +767,7 @@ struct __attribute__((visibility("hidden"))) ConflictSet::Impl {
           false, true);
     }
 
-    if (!std::is_sorted(points.begin(), points.end())) {
+    sortPoints(points);
-      sortPoints(points);
-    }
 
     int activeWriteCount = 0;
     std::vector<std::pair<StringRef, StringRef>> combinedWriteConflictRanges;

apple-symbol-imports.txt

@@ -1,3 +1,4 @@
+___chkstk_darwin
 ___stack_chk_fail
 ___stack_chk_guard
 __tlv_bootstrap
@@ -5,6 +6,7 @@ _abort
 _bzero
 _free
 _malloc
+_memcmp
 _memcpy
 _memmove
 dyld_stub_binder

package_macos.sh

@@ -8,7 +8,7 @@ SRC_DIR="${0%/*}"
 BUILD_ARM="$(mktemp -d -t conflict-set-arm)"
 BUILD_X86="$(mktemp -d -t conflict-set-x86)"
 
-cmake_args=(-DCMAKE_CXX_FLAGS=-DNVALGRIND -DCPACK_PACKAGING_INSTALL_PREFIX=/usr/local)
+cmake_args=(-DCMAKE_CXX_FLAGS=-DNVALGRIND -DCPACK_PACKAGING_INSTALL_PREFIX=/usr/local -DCMAKE_CXX_COMPILER=/opt/homebrew/opt/llvm/bin/clang++)
 
 cmake -S"$SRC_DIR" -B"$BUILD_ARM" -DCMAKE_OSX_ARCHITECTURES=arm64 "${cmake_args[@]}"
 cmake --build "$BUILD_ARM" --target conflict-set --target conflict-set-static