commit c4b6b91bce50e8d710a73265cb62f7a68a94b5d4
author Marius Brehler <marius.brehler@iml.fraunhofer.de> Wed Jan 15 08:44:23 2020 -0800
committer Copybara-Service <copybara-worker@google.com> Wed Jan 15 08:45:19 2020 -0800
tree 6c05f601f530a6435bd1fd319cf8761f6c80e9d6
parent b18c3880f7a113c35ab659234445033902c9e02e

Set default CMAKE_BUILD_TYPE to Release and implement CMAKE_BUILD_TYPE FastBuild

* Sets the default `CMAKE_BUILD_TYPE` to `Release`
* Implements a custom build type `FastBuild`
  * If the `CMAKE_BUILD_TYPE` is set to `FastBuild`, for LLVM the `CMAKE_BUILD_TYPE` is set to `Relase`

Closes https://github.com/google/iree/pull/474

COPYBARA_INTEGRATE_REVIEW=https://github.com/google/iree/pull/474 from marbre:cmake_build_type be143f166341acc4306d36a8e249ca64d2ac1298
PiperOrigin-RevId: 289866898

CMakeLists.txt

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0f0cfae..1ecbe88 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -66,6 +66,23 @@
 
 string(JOIN " " CMAKE_CXX_FLAGS ${IREE_DEFAULT_COPTS})
 
+set(CMAKE_CXX_FLAGS_FASTBUILD "-gmlt" CACHE STRING "Flags used by the C++ compiler during fast builds." FORCE)
+set(CMAKE_C_FLAGS_FASTBUILD "-gmlt" CACHE STRING "Flags used by the C compiler during fast builds." FORCE)
+set(CMAKE_EXE_LINKER_FLAGS_FASTBUILD "-Wl,-S" CACHE STRING "Flags used for linking binaries during fast builds." FORCE)
+set(CMAKE_SHARED_LINKER_FLAGS_FASTBUILD "-Wl,-S" CACHE STRING "Flags used by the shared libraries linker binaries during fast builds." FORCE)
+mark_as_advanced(
+  CMAKE_CXX_FLAGS_FASTBUILD
+  CMAKE_C_FLAGS_FASTBUILD
+  CMAKE_EXE_LINKER_FLAGS_FASTBUILD
+  CMAKE_SHARED_LINKER_FLAGS_FASTBUILD
+)
+
+set(DEFAULT_CMAKE_BUILD_TYPE "Release")
+if (NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
+  message(STATUS "No build type selected, default to ${DEFAULT_CMAKE_BUILD_TYPE}")
+  set(CMAKE_BUILD_TYPE "${DEFAULT_CMAKE_BUILD_TYPE}" CACHE STRING "Build type (default ${DEFAULT_CMAKE_BUILD_TYPE})" FORCE)
+endif()
+
 set(CMAKE_POSITION_INDEPENDENT_CODE TRUE)
 
 #-------------------------------------------------------------------------------
@@ -94,7 +111,18 @@
 add_subdirectory(third_party/vulkan_headers EXCLUDE_FROM_ALL)
 
 if(${IREE_ENABLE_LLVM})
+  # If CMAKE_BUILD_TYPE is FastBuild, set to Debug for llvm
+  set(_CMAKE_BUILD_TYPE "${CMAKE_BUILD_TYPE}")
+  string(TOUPPER "${CMAKE_BUILD_TYPE}" uppercase_CMAKE_BUILD_TYPE)
+  if(NOT uppercase_CMAKE_BUILD_TYPE MATCHES "^(DEBUG|RELEASE|RELWITHDEBINFO|MINSIZEREL)$")
+    set(CMAKE_BUILD_TYPE "Debug")
+  endif()
+
   add_subdirectory(third_party/llvm-project/llvm EXCLUDE_FROM_ALL)
+
+  # Reset CMAKE_BUILD_TYPE to its previous setting
+  set(CMAKE_BUILD_TYPE "${_CMAKE_BUILD_TYPE}" CACHE STRING "Build type (default ${DEFAULT_CMAKE_BUILD_TYPE})" FORCE)
+
   include(external_tablegen_library)
 endif()
 

build_tools/scripts/cmake_build.sh

diff --git a/build_tools/scripts/cmake_build.sh b/build_tools/scripts/cmake_build.sh
index 006990a..e33a961 100755
--- a/build_tools/scripts/cmake_build.sh
+++ b/build_tools/scripts/cmake_build.sh
@@ -26,6 +26,6 @@
 cd ${ROOT_DIR?}
 rm -rf build/
 mkdir build && cd build
-"$CMAKE_BIN" -DIREE_BUILD_COMPILER=ON -DIREE_BUILD_TESTS=ON -DIREE_BUILD_SAMPLES=OFF -DIREE_BUILD_DEBUGGER=OFF ..
+"$CMAKE_BIN" -DCMAKE_BUILD_TYPE=FastBuild -DIREE_BUILD_COMPILER=ON -DIREE_BUILD_TESTS=ON -DIREE_BUILD_SAMPLES=OFF -DIREE_BUILD_DEBUGGER=OFF ..
 "$CMAKE_BIN" --build .
 rm -rf build/