Profiling Dolphin using Heaptrack, this turns out to be the cause of
more than half of all temporary allocations. Though since it's in a
separate thread, I suppose it wasn't affecting performance very much.
Combined with the previous commit, this brings the TrampolineInfo struct
down to 48 bytes. This matters, because Jit64 has a big
std::unordered_map where it stores many megabytes of TrampolineInfo
entries.
The key saving comes from shrinking the len member from u32 to u16. It
should be safe to even turn it into a u8, but going that far brings no
additional savings due to how the padding works out.
By moving members of the OpArg struct around, we can cut down on how
much padding the struct needs. Now it has a size of 16 bytes, small
enough for function calls to pass it in two registers instead of on the
stack.
Re-added a line of code from a cancelled PR (that I thought was in
main already) that RetroAchievements uses to properly synchronize
memory reads and writes with the emulator frames. This appears to
fix some pretty major freezing and deadlocks in the RA dev tools.
CMake support for c++23 was added in 3.20.
Remove statements explicitly setting the following policies to NEW.
These policies were introduced in or before 3.20, and now that 3.20 is
the minimum version they will automatically have the NEW behavior.
Policy: Introduced in
CMP0079: 3.13
CMP0084: 3.14
CMP0091: 3.15
CMP0092: 3.15
CMP0099: 3.17
CMP0117: 3.20
Disable scanning c++ source files for module imports (introduced as
CMP0155 in 3.28) since we don't use modules and that policy triggers
build errors with Clang if the clang-scan-deps tool isn't installed.
cpp-ipc is explicitely only available on Windows, Linux, QNX, and FreeBSD. Trying to build dolphin on any another BSD such as OpenBSD or Haiku currently leads to failure because of this.
Move the constructor and destructor after the definition of the class
`Internal`.
This fixes an error generated by Clang from the destructor of
`std::unique_ptr<Internal>` when setting the standard version to c++23:
`invalid application of 'sizeof' to an incomplete type 'Metal::ObjectCache::Internal'`.
Fix an error generated by Clang from the destructor of
`std::unique_ptr<FileInfo> m_file_info` when setting the standard
version to c++23:
`invalid application of 'sizeof' to an incomplete type 'DiscIO::FileInfo'`
