[Bf-blender-cvs] [fc6a1f44d2e] blender-v2.91-release: macOS: use -fno-strict-aliasing for all build types.

[Ankit Meel]

Commit: fc6a1f44d2ed6b3f793cbdc806d7030d6ddac2c3
Author: Ankit Meel
Date:   Wed Oct 28 20:52:51 2020 +0530
Branches: blender-v2.91-release
https://developer.blender.org/rBfc6a1f44d2ed6b3f793cbdc806d7030d6ddac2c3

macOS: use -fno-strict-aliasing for all build types.

The old code was added in {rBbaa4a9c7d4dd}

While the hotfix committed in {rB2ddecfffc3d3a3a1db4ae45e8665ca} fixed
the id_management test, the correct reason was found at
https://bugs.llvm.org/show_bug.cgi?id=47984

This matches the behavior on Linux.

===================================================================

M       build_files/cmake/platform/platform_apple.cmake

===================================================================

diff --git a/build_files/cmake/platform/platform_apple.cmake 
b/build_files/cmake/platform/platform_apple.cmake
index 4697e6bc766..962033c32bc 100644
--- a/build_files/cmake/platform/platform_apple.cmake
+++ b/build_files/cmake/platform/platform_apple.cmake
@@ -194,7 +194,7 @@ if(SYSTEMSTUBS_LIBRARY)
   list(APPEND PLATFORM_LINKLIBS SystemStubs)
 endif()
 
-set(PLATFORM_CFLAGS "${PLATFORM_CFLAGS} -pipe -funsigned-char")
+set(PLATFORM_CFLAGS "${PLATFORM_CFLAGS} -pipe -funsigned-char 
-fno-strict-aliasing")
 set(PLATFORM_LINKFLAGS
   "-fexceptions -framework CoreServices -framework Foundation -framework IOKit 
-framework AppKit -framework Cocoa -framework Carbon -framework AudioUnit 
-framework AudioToolbox -framework CoreAudio -framework Metal -framework 
QuartzCore"
 )
@@ -425,8 +425,8 @@ endif()
 
 set(EXETYPE MACOSX_BUNDLE)
 
-set(CMAKE_C_FLAGS_DEBUG "-fno-strict-aliasing -g")
-set(CMAKE_CXX_FLAGS_DEBUG "-fno-strict-aliasing -g")
+set(CMAKE_C_FLAGS_DEBUG "-g")
+set(CMAKE_CXX_FLAGS_DEBUG "-g")
 if(CMAKE_OSX_ARCHITECTURES MATCHES "x86_64" OR CMAKE_OSX_ARCHITECTURES MATCHES 
"i386")
   set(CMAKE_CXX_FLAGS_RELEASE "-O2 -mdynamic-no-pic -msse -msse2 -msse3 
-mssse3")
   set(CMAKE_C_FLAGS_RELEASE "-O2 -mdynamic-no-pic  -msse -msse2 -msse3 
-mssse3")
@@ -435,8 +435,8 @@ if(CMAKE_OSX_ARCHITECTURES MATCHES "x86_64" OR 
CMAKE_OSX_ARCHITECTURES MATCHES "
     set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -ftree-vectorize  
-fvariable-expansion-in-unroller")
   endif()
 else()
-  set(CMAKE_C_FLAGS_RELEASE "-O2 -mdynamic-no-pic -fno-strict-aliasing")
-  set(CMAKE_CXX_FLAGS_RELEASE "-O2 -mdynamic-no-pic -fno-strict-aliasing")
+  set(CMAKE_C_FLAGS_RELEASE "-O2 -mdynamic-no-pic")
+  set(CMAKE_CXX_FLAGS_RELEASE "-O2 -mdynamic-no-pic")
 endif()
 
 if(${XCODE_VERSION} VERSION_EQUAL 5 OR ${XCODE_VERSION} VERSION_GREATER 5)

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