build: Enable LTO/LTCG on Windows Release builds

royswale · Jul 7, 2020 · 0ad6adc · 0ad6adc
1 parent 9a631ff
commit 0ad6adc
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -120,6 +120,11 @@ if(MSVC)
   # COMDAT folding/remove unused functions.
   set(CMAKE_EXE_LINKER_FLAGS_RELEASE "${CMAKE_EXE_LINKER_FLAGS_RELEASE} /OPT:REF /OPT:ICF")
   set(CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO "${CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO} /OPT:REF /OPT:ICF")
+
+  # Enable LTO/LTCG on Release builds.
+  if(${CMAKE_BUILD_TYPE} STREQUAL "Release")
+    set(CMAKE_INTERPROCEDURAL_OPTIMIZATION ON)
+  endif()
 endif()