Add CMake project

CMakeLists.txt

@@ -0,0 +1,80 @@
+cmake_minimum_required(VERSION 3.9)
+
+if(CLANG OR CLANG_SUFFIX)
+  set(CMAKE_C_COMPILER   "clang${CLANG_SUFFIX}")
+  set(CMAKE_CXX_COMPILER "clang++${CLANG_SUFFIX}")
+  set(CMAKE_C_FLAGS   "${CMAKE_C_FLAGS}   -fuse-ld=lld")
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fuse-ld=lld")
+endif()
+
+if(CLANG_CL)
+  set(CMAKE_C_COMPILER   "clang-cl")
+  set(CMAKE_CXX_COMPILER "clang-cl")
+  set(CMAKE_LINKER       "lld-link")
+endif()
+
+if(NOT CMAKE_BUILD_TYPE)
+  set(CMAKE_BUILD_TYPE "Release" CACHE STRING "set build type to Release")
+endif()
+
+project(wasm3)
+
+message("----")
+message("Generator:  ${CMAKE_GENERATOR}")
+message("Compiler:   ${CMAKE_C_COMPILER_ID}")
+message("Build Type: ${CMAKE_BUILD_TYPE}")
+
+
+include(CheckIPOSupported)
+
+set(CMAKE_C_STANDARD 11)
+set(CMAKE_C_STANDARD_REQUIRED YES)
+set(CMAKE_C_EXTENSIONS NO)
+
+set(CMAKE_CXX_STANDARD 11)
+set(CMAKE_CXX_STANDARD_REQUIRED YES)
+set(CMAKE_CXX_EXTENSIONS NO)
+
+#For gcc -O3
+#For clang -Ofast
+
+file(GLOB M3_SRC "source/*.c" "source/*.cpp")
+
+if((CMAKE_C_COMPILER_ID MATCHES "GNU") OR
+   (CMAKE_C_COMPILER_ID MATCHES "MSVC"))
+  # Compile C files as C++
+  set_source_files_properties(${M3_SRC} PROPERTIES LANGUAGE CXX)
+  # Let m3.hpp file know
+  add_definitions(-DM3_COMPILED_AS_CPP=1)
+endif()
+
+if(WIN32)
+  add_definitions(-D_CRT_SECURE_NO_WARNINGS -D_MBCS) # -DM3_RUN_LOOPS=10
+
+  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /WX- /diagnostics:column")
+
+  if (CMAKE_C_COMPILER_ID MATCHES "MSVC")
+    set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} /Zi /Zo /Oxs /w /fp:fast /arch:AVX2")
+    set(CMAKE_EXE_LINKER_FLAGS_RELEASE "/DEBUG:FULL")
+  else()
+    set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} /O3 /Oy /GS- /Qvec /w -Xclang -Oz /fp:fast") # /Gr
+  endif()
+  set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE}") # /GR- /GX-
+else()
+  set(CMAKE_C_FLAGS_RELEASE "-Oz -fomit-frame-pointer -march=native -w -Wfatal-errors") #-fno-inline
+  set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE}") # -fno-rtti -fno-exceptions
+  set(CMAKE_EXE_LINKER_FLAGS_DEBUG "-O0")
+  set(CMAKE_EXE_LINKER_FLAGS_RELEASE "-O3")
+endif()
+
+add_executable(wasm3 ${M3_SRC})
+
+check_ipo_supported(RESULT result)
+if(result)
+  set_property(TARGET wasm3 PROPERTY INTERPROCEDURAL_OPTIMIZATION True)
+  message("LTO:        ON")
+else()
+  message("LTO:        OFF")
+endif()
+
+message("----")