https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123870
--- Comment #14 from Ilya Kurdyukov <jpegqs at gmail dot com> --- Created attachment 63536 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=63536&action=edit jpegqs_test.zip You need libjpeg-dev to build this. $ bash run.sh -DRVV_PATH1=1 -DRVV_PATH2=1 quantsmooth: 16.314ms MD5(/dev/shm/output.jpg)= faccc689fe1910dfd364f83dbf2649df -rw-rw-r-- 1 debian debian 4191 Jan 30 07:35 /dev/shm/output.jpg quantsmooth: 3.363ms MD5(/dev/shm/output.jpg)= faccc689fe1910dfd364f83dbf2649df -rw-rw-r-- 1 debian debian 4191 Jan 30 07:35 /dev/shm/output.jpg quantsmooth: 3.410ms MD5(/dev/shm/output.jpg)= faccc689fe1910dfd364f83dbf2649df -rw-rw-r-- 1 debian debian 4191 Jan 30 07:35 /dev/shm/output.jpg $ cp /dev/shm/output.jpg result11.jpg Enlarge the image and you will see that there are artifacts to the left of the car. $ bash run.sh -DRVV_PATH1=1 -DRVV_PATH2=0 quantsmooth: 3.332ms MD5(/dev/shm/output.jpg)= 3bd354cc91258b8c7f814cadf85437ef -rw-rw-r-- 1 debian debian 4098 Jan 30 07:37 /dev/shm/output.jpg quantsmooth: 3.292ms MD5(/dev/shm/output.jpg)= 3bd354cc91258b8c7f814cadf85437ef -rw-rw-r-- 1 debian debian 4098 Jan 30 07:37 /dev/shm/output.jpg quantsmooth: 3.309ms MD5(/dev/shm/output.jpg)= 3bd354cc91258b8c7f814cadf85437ef -rw-rw-r-- 1 debian debian 4098 Jan 30 07:37 /dev/shm/output.jpg $ cp /dev/shm/output.jpg result10.jpg There are no artifacts. $ gcc-16 -v Using built-in specs. COLLECT_GCC=riscv64-linux-gnu-gcc-16 Target: riscv64-linux-gnu Configured with: ../src/configure -v --with-pkgversion='Debian 16-20251214-1' --with-bugurl=file:///usr/share/doc/gcc-16/README.Bugs --enable-languages=c,ada,c++,go,d,fortran,objc,obj-c++,m2,rust,cobol,algol68 --prefix=/usr --with-gcc-major-version-only --program-suffix=-16 --program-prefix=riscv64-linux-gnu- --enable-shared --enable-linker-build-id --libexecdir=/usr/libexec --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-libstdcxx-backtrace --enable-gnu-unique-object --disable-libquadmath --disable-libquadmath-support --enable-plugin --enable-default-pie --with-system-zlib --enable-libphobos-checking=release --with-target-system-zlib=auto --enable-objc-gc=auto --enable-multiarch --disable-werror --disable-multilib --with-abi=lp64d --with-arch=rv64gc --enable-checking=yes --build=riscv64-linux-gnu --host=riscv64-linux-gnu --target=riscv64-linux-gnu Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 16.0.0 20251214 (experimental) [trunk r16-6108-g427ddf95eef] (Debian 16-20251214-1)
