On Wed, Feb 15, 2012 at 10:04:15AM +, Paulo J. Matos wrote:
> It doesn't look like you can actually do that because, according to
> the internals manual:
> "For a named pattern, the condition (if present) may not depend on
> the data in the insn being matched, but only the target-machine-type
>
On 14/02/12 14:10, Jakub Jelinek wrote:
On Tue, Feb 14, 2012 at 02:05:30PM +, Paulo J. Matos wrote:
I think the register allocator will generate good code using % if you
make your predicate nonimmediate_operand in operand 1:
(define_insn "iorqi3"
[(set (match_operand:QI 0 "register_operand"
On 14/02/12 14:10, Jakub Jelinek wrote:
It doesn't allow that, because the condition on the insn then fails,
as neither operand 1 nor operand 2 is register_operand.
Jakub
Oh!!!
I incorrectly read the instruction as I had initially tried it and I
knew it was failing, however, I didn
On Tue, Feb 14, 2012 at 02:05:30PM +, Paulo J. Matos wrote:
> >I think the register allocator will generate good code using % if you
> >make your predicate nonimmediate_operand in operand 1:
> >
> >(define_insn "iorqi3"
> >[(set (match_operand:QI 0 "register_operand" "=c")
> >(ior:QI (match_ope
On 14/02/12 13:46, Paolo Bonzini wrote:
On 02/14/2012 10:52 AM, Jakub Jelinek wrote:
> /* Complex expressions should be the first, so decrease priority
> of objects. Prefer pointer objects over non pointer objects. */
> - if ((REG_P (op) && REG_POINTER (op))
> - || (MEM_P (op) && MEM_POINTER (op
On 14/02/12 09:52, Jakub Jelinek wrote:
On Tue, Feb 14, 2012 at 07:27:21AM +, Paulo J. Matos wrote:
case RTX_OBJ:
/* Complex expressions should be the first, so decrease priority
of objects. Prefer pointer objects over non pointer objects. */
- if ((REG_P (op)
On 02/14/2012 10:52 AM, Jakub Jelinek wrote:
>/* Complex expressions should be the first, so decrease priority
> of objects. Prefer pointer objects over non pointer objects. */
> - if ((REG_P (op) && REG_POINTER (op))
> -|| (MEM_P (op) && MEM_POINTER (op)))
> - retur
On Tue, Feb 14, 2012 at 07:27:21AM +, Paulo J. Matos wrote:
> case RTX_OBJ:
>/* Complex expressions should be the first, so decrease priority
> of objects. Prefer pointer objects over non pointer objects. */
> - if ((REG_P (op) && REG_POINTER (op))
> - || (ME
Hi,
This patch was submitted as part of PR 52235.
It increases the preference of a register for first operand of a
commutative operator.
2012-02-13 Paulo Matos
* gcc/rtlanal.c: Increase preference of a register for the
first operand in a commutative operator.
--- gcc46/gcc/rt
