On Thu, Jun 26, 2025 at 6:21 AM H.J. Lu <hjl.to...@gmail.com> wrote:
>
> On Tue, Jun 24, 2025 at 2:21 PM H.J. Lu <hjl.to...@gmail.com> wrote:
> >
> > Add debug dump for the remove_redundant_vector pass with the following
> > output:
> >
> > Replace:
> >
> > (insn 7 4 8 2 (set (reg:V2DI 103)
> > (const_vector:V2DI [
> > (const_int 0 [0]) repeated x2
> > ])) "x.c":8:13 2406 {movv2di_internal}
> > (nil))
> >
> > with:
> >
> > (insn 7 4 8 2 (set (reg:V2DI 103)
> > (subreg:V2DI (reg:V32QI 109) 0)) "x.c":8:13 2406 {movv2di_internal}
> > (nil))
> >
> > ...
> >
> > Replace:
> >
> > (insn 16 15 17 3 (set (reg:V4DI 105)
> > (const_vector:V4DI [
> > (const_int 0 [0]) repeated x4
> > ])) "x.c":13:28 2405 {movv4di_internal}
> > (nil))
> >
> > with:
> >
> > (insn 16 15 17 3 (set (reg:V4DI 105)
> > (subreg:V4DI (reg:V32QI 109) 0)) "x.c":13:28 2405 {movv4di_internal}
> > (nil))
> >
> > ...
> >
> > Place:
> >
> > (insn 25 5 23 2 (set (reg:V32QI 109)
> > (const_vector:V32QI [
> > (const_int 0 [0]) repeated x32
> > ])) -1
> > (nil))
> >
> > after:
> >
> > (insn 23 25 24 2 (set (reg/f:DI 107 [ mem1 ])
> > (reg:DI 5 di [ mem1 ])) "x.c":5:1 95 {*movdi_internal}
> > (expr_list:REG_DEAD (reg:DI 5 di [ mem1 ])
> > (nil)))
> >
> > in the *.309r.rrvl debug dump.
> >
> > * config/i386/i386-features.cc (ix86_place_single_vector_set):
> > Add debug dump.
> > (replace_vector_const): Likewise.
> > (remove_redundant_vector_load): Likewise.
> >
> > OK for master?
> >
> > Thanks.
> >
> > --
> > H.J.
>
> I am checking it in to help debug issues in the remove_redundant_vector
> pass.
Ok.
>
> --
> H.J.
--
BR,
Hongtao
