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79ba5c1c77
Vector registers are zero initialized by the kernel. Stop accepting "all ones" as a clean value. Note that this was not working as expected given that value == 0xff can be assumed to be always false by the compiler as value's range is [-128, 127]. Both GCC (-Wtype-limits) and clang (-Wtautological-constant-out-of-range-compare) warn about this. Reviewed-by: Charlie Jenkins <charlie@rivosinc.com> Tested-by: Charlie Jenkins <charlie@rivosinc.com> Signed-off-by: Ignacio Encinas <ignacio@iencinas.com> Link: https://lore.kernel.org/r/20250306-fix-v_exec_initval_nolibc-v2-1-97f9dc8a7faf@iencinas.com Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>