AuroraMiddleware/Vulkan-Hpp
1
0
Fork 0
mirror of https://github.com/KhronosGroup/Vulkan-Hpp synced 2024-11-21 11:50:04 +00:00
Code Issues Releases Wiki Activity

Use compile option -fno-strict-aliasing to prevent breaking optimizations due to using reinterpret_cast (#1985)

Browse Source
This commit is contained in:
Andreas Süßenbach 2024-10-31 08:24:05 +01:00 committed by GitHub
parent 17a245e6ec
commit ab5eb71025
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
2 changed files with 7 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
CMakeLists.txt
View File

@ -63,6 +63,9 @@ function( vulkan_hpp__setup_platform )
else()
message( FATAL_ERROR, "Vulkan-Hpp: unhandled platform!" )
endif()
if( !MSVC )
target_compile_options( ${TARGET_NAME} PRIVATE -fno-strict-aliasing )
endif()
endfunction()
function( vulkan_hpp__setup_vulkan_include )

4
README.md
View File

@ -846,6 +846,10 @@ Currently, there are just a couple of such defines:
- `VULKAN_HPP_NO_TO_STRING`, which removes the various `vk::to_string` functions on enums and bitmasks.
- `VULKAN_HPP_USE_REFLECT`, this one needs to be defined to use the reflection function on structures. It's very slow to compile, though!
### Strict aliasing issue
As Vulkan-Hpp often needs to switch between C++ vk-types and corresponding bit-identical C-types, using `reinterpret_cast`, it is highly recommended to use the compile option `-fno-strict-aliasing` to prevent potentially breaking compile optimizations.
## Configuration Options
There are a couple of defines you can use to control the feature set and behaviour of `vulkan.hpp`: