[cmake] Enable IPO for ICC

diff --git a/CMakeLists.txt b/CMakeLists.txt
index f91d16b..6647eb5 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -213,7 +213,10 @@ if(MSVC)
     string(APPEND CMAKE_C_FLAGS_RELEASE " /Zi /guard:cf")
     string(APPEND CMAKE_CXX_FLAGS_RELEASE " /Zi /guard:cf")
 
-    if("${CMAKE_C_COMPILER_ID}" MATCHES "Clang")
+    if("${CMAKE_C_COMPILER_ID}" MATCHES "Intel")
+        string(APPEND CMAKE_C_FLAGS_RELEASE " /Qipo")
+        string(APPEND CMAKE_CXX_FLAGS_RELEASE " /Qipo")
+    elseif("${CMAKE_C_COMPILER_ID}" MATCHES "Clang")
         string(APPEND CMAKE_C_FLAGS_RELEASE " -flto=thin")
         string(APPEND CMAKE_CXX_FLAGS_RELEASE " -flto=thin")
     elseif("${CMAKE_C_COMPILER_ID}" MATCHES "MSVC")