CMake: Enable WMO for Release builds #146
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The new interpreter heavily benefits from WMO and it's even slower than the old one without it. This change enables WMO for Release builds for CMake builds as it's not enabled by default. Use `CMAKE_Swift_COMPILATION_MODE` if CMake 3.29 or newer is used, and fall back to `add_compile_options` if older. https://cmake.org/cmake/help/latest/prop_tgt/Swift_COMPILATION_MODE.html
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This release includes a fix to the build system that enables WMO for release builds. swiftwasm/WasmKit#146
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The new interpreter heavily benefits from WMO and it's even slower than the old one without it. This change enables WMO for Release builds for CMake builds as it's not enabled by default.
Use
CMAKE_Swift_COMPILATION_MODEif CMake 3.29 or newer is used, and fall back toadd_compile_optionsif older.https://cmake.org/cmake/help/latest/prop_tgt/Swift_COMPILATION_MODE.html