Re: [PATCH v2] rs6000: Remove unspecs for vec_mrghl[bhw]

2021-10-18 Thread David Edelsohn via Gcc-patches
On Tue, Oct 12, 2021 at 9:50 PM Xionghu Luo wrote: > > Resend this patch. Previous discussion is: > > https://gcc.gnu.org/pipermail/gcc-patches/2021-June/572330.html > > vmrghb only accepts permute index {0, 16, 1, 17, 2, 18, 3, 19, 4, 20, > 5, 21, 6, 22, 7, 23} no matter for BE or LE in ISA, sim

[PATCH v2] rs6000: Remove unspecs for vec_mrghl[bhw]

2021-10-12 Thread Xionghu Luo via Gcc-patches
Resend this patch. Previous discussion is: https://gcc.gnu.org/pipermail/gcc-patches/2021-June/572330.html vmrghb only accepts permute index {0, 16, 1, 17, 2, 18, 3, 19, 4, 20, 5, 21, 6, 22, 7, 23} no matter for BE or LE in ISA, similarly for vmrglb. Remove UNSPEC_VMRGH_DIRECT/UNSPEC_VMRGL_DIREC