Change Details

In some cases, AArch64 use SBFMXri + COPY to implement "sign_extend_inreg (truncate)", However COPY is usually erased after Register Coalescing, so if we want to zext this result, we need to avoid using implicit zero-extend.

In some cases, AArch64 use SBFMXri + COPY to implement "sign_extend_inreg (truncate)", However COPY is usually erased after Register Coalescing, so if we want to zext this result, we need to avoid using implicit zero-extend.

In some cases, AArch64 use SBFMXri + COPY to implement "sign_extend_inreg (truncate)", However COPY is usually erased after Register Coalescing, so if we want to zext this result, we need to avoid using implicit zero-extend.