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make MI_OPT_ARCH by default OFF except for arm64 where we assume v8.1-a for fast atomics

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Daan Leijen 2025-03-05 15:37:37 -08:00
parent 438903421a
commit 5c6ab532d9
1 changed files with 36 additions and 41 deletions
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77
CMakeLists.txt
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@ -14,7 +14,7 @@ option(MI_TRACK_VALGRIND "Compile with Valgrind support (adds a small overhea
option(MI_TRACK_ASAN "Compile with address sanitizer support (adds a small overhead)" OFF)
option(MI_TRACK_ETW "Compile with Windows event tracing (ETW) support (adds a small overhead)" OFF)
option(MI_USE_CXX "Use the C++ compiler to compile the library (instead of the C compiler)" OFF)
option(MI_OPT_ARCH "Only for optimized builds: turn on architecture specific optimizations (for arm64: '-march=armv8.1-a' (2016))" ON)
option(MI_OPT_ARCH "Only for optimized builds: turn on architecture specific optimizations (for arm64: '-march=armv8.1-a' (2016))" OFF)
option(MI_SEE_ASM "Generate assembly files" OFF)
option(MI_OSX_INTERPOSE "Use interpose to override standard malloc on macOS" ON)
option(MI_OSX_ZONE "Use malloc zone to override standard malloc on macOS" ON)
@ -116,9 +116,44 @@ if("${CMAKE_BINARY_DIR}" MATCHES ".*(S|s)ecure$")
set(MI_SECURE "ON")
endif()
# Determine architecture
set(MI_OPT_ARCH_FLAGS "")
set(MI_ARCH "unknown")
if(CMAKE_SYSTEM_PROCESSOR MATCHES "^(x86|i[3456]86)$" OR CMAKE_GENERATOR_PLATFORM MATCHES "^(x86|Win32)$")
set(MI_ARCH "x86")
elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(x86_64|x64|amd64|AMD64)$" OR CMAKE_GENERATOR_PLATFORM STREQUAL "x64" OR "x86_64" IN_LIST CMAKE_OSX_ARCHITECTURES) # must be before arm64
set(MI_ARCH "x64")
elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(aarch64|arm64|armv[89].?|ARM64)$" OR CMAKE_GENERATOR_PLATFORM STREQUAL "ARM64" OR "arm64" IN_LIST CMAKE_OSX_ARCHITECTURES)
set(MI_ARCH "arm64")
elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(arm|armv[34567]|ARM)$")
set(MI_ARCH "arm32")
elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(riscv|riscv32|riscv64)$")
if(CMAKE_SIZEOF_VOID_P==4)
set(MI_ARCH "riscv32")
else()
set(MI_ARCH "riscv64")
endif()
else()
set(MI_ARCH ${CMAKE_SYSTEM_PROCESSOR})
endif()
message(STATUS "Architecture: ${MI_ARCH}") # (${CMAKE_SYSTEM_PROCESSOR}, ${CMAKE_GENERATOR_PLATFORM}, ${CMAKE_GENERATOR})")
# negative overrides (mainly to support vcpkg features)
if(MI_NO_USE_CXX)
set(MI_USE_CXX "OFF")
endif()
if(MI_NO_OPT_ARCH)
set(MI_OPT_ARCH "OFF")
elseif(MI_ARCH STREQUAL "arm64")
set(MI_OPT_ARCH "ON") # enable armv8.1-a by default on arm64 unless MI_NO_OPT_ARCH is set
endif()
# -----------------------------------------------------------------------------
# Process options
# -----------------------------------------------------------------------------
if(CMAKE_C_COMPILER_ID STREQUAL "Clang" AND CMAKE_CXX_COMPILER_FRONTEND_VARIANT STREQUAL "MSVC")
set(MI_CLANG_CL "ON")
endif()
@ -138,27 +173,10 @@ if(CMAKE_C_COMPILER_ID MATCHES "Intel")
list(APPEND mi_cflags -Wall)
endif()
# negative overrides (mainly to support vcpkg features)
if(MI_NO_USE_CXX)
set(MI_USE_CXX "OFF")
endif()
if(MI_NO_OPT_ARCH)
set(MI_OPT_ARCH "OFF")
endif()
if(CMAKE_C_COMPILER_ID MATCHES "MSVC|Intel")
set(MI_USE_CXX "ON")
endif()
if(CMAKE_BUILD_TYPE MATCHES "Release|RelWithDebInfo")
if (NOT MI_OPT_ARCH)
message(STATUS "Architecture specific optimizations are disabled (MI_OPT_ARCH=OFF)")
endif()
else()
set(MI_OPT_ARCH OFF)
endif()
if(MI_OVERRIDE)
message(STATUS "Override standard malloc (MI_OVERRIDE=ON)")
if(APPLE)
@ -365,28 +383,6 @@ if(MI_WIN_USE_FIXED_TLS)
list(APPEND mi_defines MI_WIN_USE_FIXED_TLS=1)
endif()
# Determine architecture
set(MI_OPT_ARCH_FLAGS "")
set(MI_ARCH "unknown")
if(CMAKE_SYSTEM_PROCESSOR MATCHES "^(x86|i[3456]86)$" OR CMAKE_GENERATOR_PLATFORM MATCHES "^(x86|Win32)$")
set(MI_ARCH "x86")
elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(x86_64|x64|amd64|AMD64)$" OR CMAKE_GENERATOR_PLATFORM STREQUAL "x64" OR "x86_64" IN_LIST CMAKE_OSX_ARCHITECTURES) # must be before arm64
set(MI_ARCH "x64")
elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(aarch64|arm64|armv[89].?|ARM64)$" OR CMAKE_GENERATOR_PLATFORM STREQUAL "ARM64" OR "arm64" IN_LIST CMAKE_OSX_ARCHITECTURES)
set(MI_ARCH "arm64")
elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(arm|armv[34567]|ARM)$")
set(MI_ARCH "arm32")
elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(riscv|riscv32|riscv64)$")
if(CMAKE_SIZEOF_VOID_P==4)
set(MI_ARCH "riscv32")
else()
set(MI_ARCH "riscv64")
endif()
else()
set(MI_ARCH ${CMAKE_SYSTEM_PROCESSOR})
endif()
message(STATUS "Architecture: ${MI_ARCH}") # (${CMAKE_SYSTEM_PROCESSOR}, ${CMAKE_GENERATOR_PLATFORM}, ${CMAKE_GENERATOR})")
# Check /proc/cpuinfo for an SV39 MMU and limit the virtual address bits.
# (this will skip the aligned hinting in that case. Issue #939, #949)
if (EXISTS /proc/cpuinfo)
@ -439,7 +435,6 @@ endif()
if(CMAKE_C_COMPILER_ID MATCHES "AppleClang|Clang|GNU|Intel" AND NOT CMAKE_SYSTEM_NAME MATCHES "Haiku")
if(MI_OPT_ARCH)
if(APPLE AND CMAKE_C_COMPILER_ID STREQUAL "AppleClang" AND CMAKE_OSX_ARCHITECTURES) # to support multi-arch binaries (#999)
set(MI_OPT_ARCH_FLAGS "")
if("arm64" IN_LIST CMAKE_OSX_ARCHITECTURES)
list(APPEND MI_OPT_ARCH_FLAGS "-Xarch_arm64;-march=armv8.1-a")
endif()