This fixes a compile issue with GCC 12.1
FAILED: src/spirv/libspirv.a.p/spirv_compression.cpp.obj
i686-w64-mingw32-g++ -Isrc/spirv/libspirv.a.p -Isrc/spirv -I../dxvk-9999/src/spirv -I../dxvk-9999/include -fdiagnostics-color=always -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wnon-virtual-dtor -std=c++17 -O0 -DNOMINMAX -D_WIN32_WINNT=0xa00 -msse -msse2 -msse3 -mfpmath=sse -Wimplicit-fallthrough -O3 -march=native -pipe -flto=16 -mno-avx -MD -MQ src/spirv/libspirv.a.p/spirv_compression.cpp.obj -MF src/spirv/libspirv.a.p/spirv_compression.cpp.obj.d -o src/spirv/libspirv.a.p/spirv_compression.cpp.obj -c ../dxvk-9999/src/spirv/spirv_compression.cpp
In file included from ../dxvk-9999/src/spirv/../util/util_flags.h:5,
from ../dxvk-9999/src/spirv/spirv_include.h:7,
from ../dxvk-9999/src/spirv/spirv_instruction.h:6,
from ../dxvk-9999/src/spirv/spirv_code_buffer.h:8,
from ../dxvk-9999/src/spirv/spirv_compression.h:5,
from ../dxvk-9999/src/spirv/spirv_compression.cpp:1:
../dxvk-9999/src/spirv/../util/util_bit.h:300:33: warning: ‘template<class _Category, class _Tp, class _Distance, class _Pointer, class _Reference> struct std::iterator’ is deprecated [-Wdeprecated-declarations]
300 | class iterator: public std::iterator<std::input_iterator_tag,
| ^~~~~~~~
In file included from /usr/lib/gcc/i686-w64-mingw32/12.1.0/include/g++-v12/bits/stl_algobase.h:65,
from /usr/lib/gcc/i686-w64-mingw32/12.1.0/include/g++-v12/vector:60,
from ../dxvk-9999/src/spirv/spirv_compression.h:3:
/usr/lib/gcc/i686-w64-mingw32/12.1.0/include/g++-v12/bits/stl_iterator_base_types.h:127:34: note: declared here
127 | struct _GLIBCXX17_DEPRECATED iterator
| ^~~~~~~~
../dxvk-9999/src/spirv/spirv_code_buffer.h: In member function ‘size_t dxvk::SpirvCodeBuffer::endInsertion()’:
../dxvk-9999/src/spirv/spirv_code_buffer.h:214:19: error: ‘exchange’ is not a member of ‘std’
214 | return std::exchange(m_ptr, m_code.size());
| ^~~~~~~~
Signed-off-by: Mike Lothian <mike@fireburn.co.uk>
Seems to be anything up to 3x as fast to decode than the previous code,
with the compression ratio being slightly worse. Encoding seems faster
as well.
Late constants can be used to reserve a placeholder ID for a constant
before the constant's value is known. The value can be changed later.
Only scalar 32-bit integer and floating point types are supported
as of right now.
