> (I don't have svn write access so I'll need someone else to commit it if
> it's approved.)
I can apply it for you. But ... do you have a copyright assignment in place
for contributions to GCC ? The patch looks small and trivial enough that
I think I can apply it without a signed copyright assi
Hi,
To negate a double word (HImode) register, I used to take the
instruction all the way to assembly generation and then expand into
three assembly instructions like so:
xor %t0, # ; invert bits in top word of op0
nadd %b0, #0; negate bottom bits of op0
addc %t0, #0; add ca
On Mon, Oct 17, 2011 at 02:57, Richard Guenther
> It would simply be an alternate ABI
that makes all registers callee-saved?
> I suppose that would be not too hard to add.
That would be great. There are quite a few interfaces which have a
trivial normal case and only in special situations you ne
> > At least the Linux kernel has a couple such cases ("nasty inline asm to
> > hide register clobbering in calls") and it's always ugly and hard to
> > maintain.
>
> It would simply be an alternate ABI that makes all registers callee-saved?
Yes exactly that.
-Andi
--
a...@linux.intel.com -- Sp
I'm sorry I haven't gotten around to chasing this sooner. I needed to learn
how to use objdump and read the assembler. The code now lets you define the
depth.
It generates some pretty crappy code even with gcc-4.6.0 on O3. The code when
generating a 20 deep template inlines every 6 levels.
On Mon, Oct 17, 2011 at 3:50 AM, Paulo J. Matos wrote:
> addc_internal looks like:
> (define_insn "addc_internal"
> [(set (match_operand:QI 0 "nonimmediate_operand" "=c")
> (plus:QI
> (plus:QI
> (ltu:QI (reg:CC RCC) (const_int 0))
> (match_operand:QI 1 "noni
-Original Message-
From: Liu Wang
Sent: Saturday, October 15, 2011 5:42 PM
To: 'gcc-h...@gcc.gnu.org'
Subject: How to let Linux kernel Makefile generate intermediate *.i files ? It
doesn't work to add "EXTRA_CFLAGS += -save-temps" in Makefile and gets "cc:
warning: -pipe ignored becaus
On 10/17/2011 09:27 AM, Liu Wang wrote:
>
>
> -Original Message-
> From: Liu Wang
> Sent: Saturday, October 15, 2011 5:42 PM
> To: 'gcc-h...@gcc.gnu.org'
> Subject: How to let Linux kernel Makefile generate intermediate *.i files ?
> It doesn't work to add "EXTRA_CFLAGS += -save-temps"
On 10/17/2011 07:09 AM, Bob Breuer wrote:
> I don't think this is a free/g_free issue. If I use the following
> patch, then I at least get the openbios messages:
>
> diff --git a/cpu-exec.c b/cpu-exec.c
> index a9fa608..dfbd6ea 100644
> --- a/cpu-exec.c
> +++ b/cpu-exec.c
> @@ -180,6 +180,7 @@ st
On Mon, Oct 17, 2011 at 5:22 PM, Richard Henderson wrote:
> On 10/17/2011 07:09 AM, Bob Breuer wrote:
>> I don't think this is a free/g_free issue. If I use the following
>> patch, then I at least get the openbios messages:
>>
>> diff --git a/cpu-exec.c b/cpu-exec.c
>> index a9fa608..dfbd6ea 1006
On 10/17/2011 12:14 PM, Blue Swirl wrote:
> IIRC buggy versions of alloca() could also fail without a frame pointer.
(1) GCC always uses a frame pointer for alloca,
(2) Unless you do -fno-builtin-alloca, we always implement it inline.
r~
Richard Henderson wrote:
> On 10/17/2011 07:09 AM, Bob Breuer wrote:
>> I don't think this is a free/g_free issue. If I use the following
>> patch, then I at least get the openbios messages:
>>
>> diff --git a/cpu-exec.c b/cpu-exec.c
>> index a9fa608..dfbd6ea 100644
>> --- a/cpu-exec.c
>> +++ b/cp
2011/10/17 Bob Breuer :
> Richard Henderson wrote:
>> On 10/17/2011 07:09 AM, Bob Breuer wrote:
>>> I don't think this is a free/g_free issue. If I use the following
>>> patch, then I at least get the openbios messages:
>>>
>>> diff --git a/cpu-exec.c b/cpu-exec.c
>>> index a9fa608..dfbd6ea 100644
Kai Tietz wrote:
> 2011/10/17 Bob Breuer :
>> Richard Henderson wrote:
>>> On 10/17/2011 07:09 AM, Bob Breuer wrote:
I don't think this is a free/g_free issue. If I use the following
patch, then I at least get the openbios messages:
diff --git a/cpu-exec.c b/cpu-exec.c
ind
2011/10/18 Bob Breuer :
> Kai Tietz wrote:
>> 2011/10/17 Bob Breuer :
>>> Richard Henderson wrote:
On 10/17/2011 07:09 AM, Bob Breuer wrote:
> I don't think this is a free/g_free issue. If I use the following
> patch, then I at least get the openbios messages:
>
> diff --git a
I've discovered an issue which I can't believe I'm the first to bump
in to. But I've checked older gcc installs and find the same issue.
I did a brief internet search and found sorta similar issues but I'm
not sure if they explained it as I see it.
I bumped into this while trying to build lzma.
On 15/10/2011 23:44, H.J. Lu wrote:
> Hi,
>
> ---plugin option for ar/nm is very long. I am proposing to add
> a --plugin-gcc option. It can be implemented with
>
> 1. Move LTOPLUGINSONAME from gcc to config/plugins.m4.
> 2. Define LTOPLUGINSONAME for ar/nm.
> 3. For --plugin-gcc, ar/nm call p
Hello Everyone,
Is it possible to extract the function name (as a tree or char *) from
a CALL_INSN RTX? Is there a #define or a series of #defines that can accomplish
this?
The tried to find this information by stepping through the print_rtx
function using gdb and the inf
"Iyer, Balaji V" writes:
>Is it possible to extract the function name (as a tree or char *)
> from a CALL_INSN RTX? Is there a #define or a series of #defines that can
> accomplish this?
Not always, of course. A call through a function pointer has no name.
The function get_callee_f
In my .md file there is an insn
(define_insn abssf2
(clobber (match_scratch 2 ""))
the %2 register is allocated as r0 in the real code.
My problem is that i want other than r0 to be allocated
for operand 2.
Please help how to do that.
--
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