linux.git/lib/tests/shdi3_kunit.c, branch master Linux kernel source tree lib: kunit: add tests for __ashldi3(), __ashrdi3(), and __lshrdi3() 2026-05-29T04:24:51+00:00 Dmitry Antipov dmantipov@yandex.ru 2026-05-19T17:22:58+00:00 6bba2ae43e8f379d3bed4c3eb258ea6d81baae80 Add KUnit tests for '__ashldi3()', '__ashrdi3()', and '__lshrdi3()' helper functions used to implement 64-bit arithmetic shift left, arithmetic shift right and logical shift right, respectively, on a 32-bit CPUs. Tested with 'qemu-system-riscv32 -M virt' and 'qemu-system-arm -M virt'. Link: https://lore.kernel.org/20260519172259.908980-8-dmantipov@yandex.ru Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru> Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com> Tested-by: Charlie Jenkins <thecharlesjenkins@gmail.com> Assisted-by: Gemini:gemini-3.1-pro-preview sashiko Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Ard Biesheuvel <ardb@kernel.org> Cc: Palmer Dabbelt <palmer@dabbelt.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> 
Add KUnit tests for '__ashldi3()', '__ashrdi3()', and '__lshrdi3()' helper
functions used to implement 64-bit arithmetic shift left, arithmetic shift
right and logical shift right, respectively, on a 32-bit CPUs.

Tested with 'qemu-system-riscv32 -M virt' and 'qemu-system-arm -M virt'.

Link: https://lore.kernel.org/20260519172259.908980-8-dmantipov@yandex.ru
Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Tested-by: Charlie Jenkins <thecharlesjenkins@gmail.com>
Assisted-by: Gemini:gemini-3.1-pro-preview sashiko
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Alexandre Ghiti <alex@ghiti.fr>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>