On Thu, Jul 30, 2020 at 1:22 AM HAO CHEN GUI <guih...@linux.ibm.com> wrote: > > David, > > Seems there is something wrong with my email box. I lost your email. I > reconfigured the box and it should be OK now. > > Could you inform me how to exclude AIX from the condition testing? By > the ABI? Thanks a lot.
The purpose should not be to exclude AIX. If there is no fundamental limitation with use of the new tablejump design on AIX then the patch is not acceptable without AIX support. The patch should use DOUBLE_INT_ASM_OP, not explicit ".quad". AIX always is PIC. It's not obvious to me why the patch should limit support to PPC64 Linux. The section selection seems Linux/ELF specific, but the rest seems like a general design optimization for all PowerPC-based operating systems. If you have questions about AIX details, that's fine. But limiting the implementation to Linux is not acceptable. All other ISA and optimization features added to GCC that are supported on all OSes are implemented on all OSes. This tablejump change should be no different. Thanks, David Thanks, David Thanks, David
