[Bug tree-optimization/109714] mesa/aux/draw_llvm: bogus "may be used uninitialized warning"

["david at ixit dot cz" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109714

--- Comment #8 from David Heidelberg (okias) <david at ixit dot cz> ---
Thank you for your patience with me!

ccache cc -Isrc/panfrost/vulkan/libvulkan_panfrost.so.p -Isrc/panfrost/vulkan
-I../src/panfrost/vulkan -Iinclude -I../include -Isrc -I../src -Isrc/compiler
-I../src/compiler -I../src/gallium/include -Isrc/gallium/auxiliary
-I../src/gallium/auxiliary -Isrc/panfrost -I../src/panfrost
-I../src/panfrost/include -Isrc/panfrost/shared -I../src/panfrost/shared
-Isrc/panfrost/midgard -I../src/panfrost/midgard -Isrc/panfrost/compiler
-I../src/panfrost/compiler -Isrc/panfrost/lib -I../src/panfrost/lib
-Isrc/compiler/nir -I../src/compiler/nir -Isrc/panfrost/lib/genxml
-I../src/panfrost/lib/genxml -Isrc/vulkan/util -I../src/vulkan/util
-Isrc/vulkan/runtime -I../src/vulkan/runtime -Isrc/vulkan/wsi
-I../src/vulkan/wsi -Isrc/egl/wayland/wayland-drm -I/usr/include/libdrm
-I/usr/include/valgrind -I/usr/include/x86_64-linux-gnu
-fdiagnostics-color=always -DNDEBUG -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch
-std=c11 -O3 -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS
-D__STDC_LIMIT_MACROS '-DPACKAGE_VERSION="23.2.0-devel"'
'-DPACKAGE_BUGREPORT="https://gitlab.freedesktop.org/mesa/mesa/-/issues"'
-DHAVE_OPENGL=1 -DHAVE_OPENGL_ES_1=1 -DHAVE_OPENGL_ES_2=1 -DHAVE_SWRAST
-DVIDEO_CODEC_VC1DEC=0 -DVIDEO_CODEC_H264DEC=1 -DVIDEO_CODEC_H264ENC=1
-DVIDEO_CODEC_H265DEC=1 -DVIDEO_CODEC_H265ENC=1 -DHAVE_X11_PLATFORM
-DHAVE_WAYLAND_PLATFORM -DHAVE_SURFACELESS_PLATFORM -DHAVE_DRM_PLATFORM
-DHAVE_XCB_PLATFORM -DENABLE_ST_OMX_BELLAGIO=0 -DENABLE_ST_OMX_TIZONIA=0
-DGLX_INDIRECT_RENDERING -DGLX_DIRECT_RENDERING -DGLX_USE_DRM -DALLOW_KCMP
-DENABLE_SHADER_CACHE -DHAVE___BUILTIN_BSWAP32 -DHAVE___BUILTIN_BSWAP64
-DHAVE___BUILTIN_CLZ -DHAVE___BUILTIN_CLZLL -DHAVE___BUILTIN_CTZ
-DHAVE___BUILTIN_EXPECT -DHAVE___BUILTIN_FFS -DHAVE___BUILTIN_FFSLL
-DHAVE___BUILTIN_POPCOUNT -DHAVE___BUILTIN_POPCOUNTLL
-DHAVE___BUILTIN_UNREACHABLE -DHAVE___BUILTIN_TYPES_COMPATIBLE_P
-DHAVE_FUNC_ATTRIBUTE_CONST -DHAVE_FUNC_ATTRIBUTE_FLATTEN
-DHAVE_FUNC_ATTRIBUTE_MALLOC -DHAVE_FUNC_ATTRIBUTE_PURE
-DHAVE_FUNC_ATTRIBUTE_UNUSED -DHAVE_FUNC_ATTRIBUTE_WARN_UNUSED_RESULT
-DHAVE_FUNC_ATTRIBUTE_WEAK -DHAVE_FUNC_ATTRIBUTE_FORMAT
-DHAVE_FUNC_ATTRIBUTE_PACKED -DHAVE_FUNC_ATTRIBUTE_RETURNS_NONNULL
-DHAVE_FUNC_ATTRIBUTE_ALIAS -DHAVE_FUNC_ATTRIBUTE_NORETURN
-DHAVE_FUNC_ATTRIBUTE_VISIBILITY -DHAVE_UINT128 -DHAVE_REALLOCARRAY
-DHAVE_FMEMOPEN -D_GNU_SOURCE -DUSE_SSE41 -DUSE_GCC_ATOMIC_BUILTINS
-DUSE_X86_64_ASM -DMAJOR_IN_SYSMACROS -DHAS_SCHED_H -DHAS_SCHED_GETAFFINITY
-DHAVE_LINUX_FUTEX_H -DHAVE_ENDIAN_H -DHAVE_DLFCN_H -DHAVE_SYS_SHM_H
-DHAVE_CET_H -DHAVE_SYS_INOTIFY_H -DHAVE_STRTOF -DHAVE_MKOSTEMP
-DHAVE_TIMESPEC_GET -DHAVE_MEMFD_CREATE -DHAVE_RANDOM_R -DHAVE_FLOCK
-DHAVE_STRTOK_R -DHAVE_GETRANDOM -DHAVE_POSIX_FALLOCATE -DHAVE_GNU_QSORT_R
-DHAVE_STRUCT_TIMESPEC -DHAVE_PROGRAM_INVOCATION_NAME -DHAVE_ISSIGNALING
-DHAVE_POSIX_MEMALIGN -DHAVE_DIRENT_D_TYPE -DHAVE_STRTOD_L -DHAVE_DLADDR
-DHAVE_DL_ITERATE_PHDR -DHAVE_ZLIB -DHAVE_ZSTD -DHAVE_COMPRESSION
-DHAVE_PTHREAD -DHAVE_PTHREAD_SETAFFINITY -DHAVE_LIBDRM -DHAVE_LIBUDEV
-DLLVM_AVAILABLE '-DMESA_LLVM_VERSION_STRING="14.0.6"' -DLLVM_IS_SHARED=1
-DDRAW_LLVM_AVAILABLE -DUSE_LIBELF -DHAVE_VALGRIND -DMESA_EXECMEM
-DHAVE_LIBUNWIND -DWL_HIDE_DEPRECATED -DHAVE_OPENMP -DHAVE_DRI -DHAVE_DRI2
-DHAVE_DRI3 -DHAVE_DRI3_MODIFIERS -DHAVE_DRISW_KMS -DHAVE_GALLIUM_EXTRA_HUD=1
-mtls-dialect=gnu2 -Werror=implicit-function-declaration
-Werror=missing-prototypes -Werror=return-type -Werror=empty-body
-Werror=incompatible-pointer-types -Werror=int-conversion
-Wimplicit-fallthrough -Wmisleading-indentation -Wno-missing-field-initializers
-Wno-format-truncation -Wno-nonnull-compare -fno-math-errno -fno-trapping-math
-fno-common -Wno-unused-function -Werror=format -Wformat-security
-ffunction-sections -fdata-sections -Wno-unused-variable
-Wno-unused-but-set-variable -save-temps -fPIC -DVK_USE_PLATFORM_XCB_KHR
-DVK_USE_PLATFORM_XLIB_KHR -DVK_USE_PLATFORM_WAYLAND_KHR
-DVK_USE_PLATFORM_DISPLAY_KHR -DVK_USE_PLATFORM_XLIB_XRANDR_EXT -pthread
-Wno-override-init -MD -MQ
src/panfrost/vulkan/libvulkan_panfrost.so.p/panvk_cmd_buffer.c.o -MF
src/panfrost/vulkan/libvulkan_panfrost.so.p/panvk_cmd_buffer.c.o.d -o
src/panfrost/vulkan/libvulkan_panfrost.so.p/panvk_cmd_buffer.c.o -c
../src/panfrost/vulkan/panvk_cmd_buffer.c