On Thu, Nov 03, 2016 at 05:43:50PM +0100, Bernd Schmidt wrote:
> On 11/03/2016 05:35 PM, Martin Jambor wrote:
> >
> > * print-rtl.c (print_rtx_operand_codes_E_and_V): Print how many times
> > an element is repeated istead of printing each repeated element.
>
> "instead"
Will fix.
>
> > ---
> > gcc/print-rtl.c | 15 ++++++++++++++-
> > 1 file changed, 14 insertions(+), 1 deletion(-)
> >
> > diff --git a/gcc/print-rtl.c b/gcc/print-rtl.c
> > index 341ecdf..9752c85 100644
> > --- a/gcc/print-rtl.c
> > +++ b/gcc/print-rtl.c
> > @@ -252,7 +252,20 @@ rtx_writer::print_rtx_operand_codes_E_and_V (const_rtx
> > in_rtx, int idx)
> > m_sawclose = 1;
> >
> > for (int j = 0; j < XVECLEN (in_rtx, idx); j++)
> > - print_rtx (XVECEXP (in_rtx, idx, j));
> > + {
> > + int j1;
> > +
> > + print_rtx (XVECEXP (in_rtx, idx, j));
> > + for (j1 = j + 1; j1 < XVECLEN (in_rtx, idx); j1++)
> > + if (XVECEXP (in_rtx, idx, j) != XVECEXP (in_rtx, idx, j1))
> > + break;
> > +
> > + if (j1 != j + 1)
> > + {
> > + fprintf (m_outfile, " repeated %ix", j1 - j);
> > + j = j1;
> > + }
> > + }
>
> Good idea, but can you give an example of how this looks in
> practice?
For example, after the patch dumps of constant vectors look like this:
(insn 27 26 28 2 (set (reg:V64SI 450)
(vec_merge:V64SI (ashift:V64SI (reg/v:V64SI 433 [ workitem_id ])
(const_vector:V64SI [
(const_int 2 [0x2]) repeated 64x
]))
(unspec:V64SI [
(const_int 0 [0])
] UNSPEC_VECTOR)
(reg:DI 425 [ exec.1_4 ]))) "kernel.c":35 -1
(nil))
Without it, the very same insn is printed as following:
(insn 27 26 28 2 (set (reg:V64SI 450)
(vec_merge:V64SI (ashift:V64SI (reg/v:V64SI 433 [ workitem_id ])
(const_vector:V64SI [
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
(const_int 2 [0x2])
]))
(unspec:V64SI [
(const_int 0 [0])
] UNSPEC_VECTOR)
(reg:DI 425 [ exec.1_4 ]))) "kernel.c":35 -1
(nil))
> Also,
> it would be nice (and necessary for David's rtl-testing) to also teach the
> rtl reader to parse this format.
>
I see, thanks for the pointer, I will have a look at it, although I
may not make it soon enough for gcc 7.
Martin
