On 06/12/2011 20:33, Jeff Law wrote:
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On 12/06/11 12:21, Ian Lance Taylor wrote:
While using the optimizers to improve the quality of uninitialized
warnings does have some benefits, those benefits are outweighed by
the drawbacks. We need to complete
Hi Diego,
> For the time being, however, it is easier for me to edit the document
> online. The document is at
> https://docs.google.com/document/pub?id=1ZfyfkB62EFaR4_g4JKm4--guz3vxm9pciOBziMHTnK4
I am looking at "Developer tools - Patch submission and review". I have been
working on QEMU for
Quoting Richard Henderson :
I can fix this in libgcc/config/epiphany/t-epiphany with:
unwind-sjlj.o : CFLAGS += -fno-exceptions
unwind-sjlj.o : c_flags := $(filter-out -fexceptions,$(cflags))
Is that the right way to do it? Or should we more generally remove
-fexceptions
from the build ru
2011/12/7 Joern Rennecke :
> Quoting Richard Henderson :
>
>>> I can fix this in libgcc/config/epiphany/t-epiphany with:
>>>
>>> unwind-sjlj.o : CFLAGS += -fno-exceptions
>>> unwind-sjlj.o : c_flags := $(filter-out -fexceptions,$(cflags))
>>>
>>> Is that the right way to do it? Or should we more g
Diego Novillo a écrit:
> https://docs.google.com/document/pub?id=1ZfyfkB62EFaR4_g4JKm4--guz3vxm9pciOBziMHTnK4
3. Debugging. [...] the compiler would show a stuck dump [...]
Maybe you meant a stack dump?
--
Dodji
On 12/06/11 18:37, Ian Lance Taylor wrote:
Lawrence Crowl writes:
It appears that "cd gcc; make" now fails to build crtbegin.o.
An additional "make all-install" seems to be needed. Was
this change intentional?
It moved to libgcc. Look in TARGET/libgcc in your build directory.
The problem
On 12/07/2011 01:00 AM, Joern Rennecke wrote:
> Quoting Richard Henderson :
>
>>> I can fix this in libgcc/config/epiphany/t-epiphany with:
>>>
>>> unwind-sjlj.o : CFLAGS += -fno-exceptions
>>> unwind-sjlj.o : c_flags := $(filter-out -fexceptions,$(cflags))
>>>
>>> Is that the right way to do it?
On 12/07/11 04:39, Dodji Seketeli wrote:
Diego Novillo a écrit:
https://docs.google.com/document/pub?id=1ZfyfkB62EFaR4_g4JKm4--guz3vxm9pciOBziMHTnK4
3. Debugging. [...] the compiler would show a stuck dump [...]
Maybe you meant a stack dump?
Thanks. I fixed this yesterday. Reload
On 12/07/11 03:52, 陳韋任 wrote:
Hi Diego,
For the time being, however, it is easier for me to edit the document
online. The document is at
https://docs.google.com/document/pub?id=1ZfyfkB62EFaR4_g4JKm4--guz3vxm9pciOBziMHTnK4
I am looking at "Developer tools - Patch submission and review". I
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On 12/07/11 01:19, David Brown wrote:
>
> Would it be possible then to have switches for different levels,
> such as is done with the strict aliasing warnings?
Well, there's two obvious levels... Not sure if there's a good way to
get something in be
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On 12/7/2011 1:05 PM, Jeff Law wrote:
Do people often intentionally run gcc without any optimisations
these days?
Certainly. Compile speed and debugging being the primary reasons.
Actually speaking for myself, I run the compiler at -O0 much
*more* than I used to do. Why? Because gdb simply d
I am trying to build gcc trunk on cygwin (with the snapshot of
20111207) and get this:
/usr/local/src/trunk/objdir.withada/./prev-gcc/g++
-B/usr/local/src/trunk/objdir.withada/./prev-gcc/
-B/usr/i686-pc-cygwin/bin/ -nostdinc++
-B/usr/local/src/trunk/objdir.withada/prev-i686-pc-cygwin/libstdc++-v3
On 07/12/11 19:05, Jeff Law wrote:
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On 12/07/11 01:19, David Brown wrote:
Would it be possible then to have switches for different levels,
such as is done with the strict aliasing warnings?
Well, there's two obvious levels... Not sure if there's
On 12/7/2011 2:36 PM, David Brown wrote:
\
I guess experiences vary. As I said, I find debugging easier with -O1 -
but maybe that's because most of my work is on embedded targets, which
usually means RISC cpus with plenty of registers. The unoptimised code
for these is usually totally incompreh
On 07/12/2011 19:14, Christian Joensson wrote:
> I am trying to build gcc trunk on cygwin (with the snapshot of
> 20111207) and get this:
> /usr/local/src/trunk/gcc/gcc/ada/adaint.c -o ada/adaint.o
> In file included from /usr/local/src/trunk/gcc/gcc/system.h:346:0,
>
> "Robert" == Robert Dewar writes:
Robert> Now the debugging at -O1 is hopeless (even parameters routinely
Robert> disappear), and so I am forced to do everything at -O0.
There's been a lot of work on gcc in this area.
Please file bugs for cases you find.
Tom
On Wednesday, 7 December 2011, Dave Korn wrote:
> On 07/12/2011 19:14, Christian Joensson wrote:
>> I am trying to build gcc trunk on cygwin (with the snapshot of
>> 20111207) and get this:
>
>> /usr/local/src/trunk/gcc/gcc/ada/adaint.c -o ada/adaint.o
>> In fil
Jonathan Wakely writes:
>> Should the Cygwin header use
>> extern "C++" on those declarations even though they're inside #ifdef
>> __cplusplus, or should adaint.c not #include things inside extern "C"?
>
> You could surround them in extern "C++", linkage specifications nest.
...but I think it wo
On 8 December 2011 01:09, Ian Lance Taylor wrote:
> Jonathan Wakely writes:
>
>>> Should the Cygwin header use
>>> extern "C++" on those declarations even though they're inside #ifdef
>>> __cplusplus, or should adaint.c not #include things inside extern "C"?
>>
>> You could surround them in extern
> However, it is true that some patches are not in that category. In
> general, we prefer to keep patch traffic in a single place
> (gcc-patches@), but we use message tagging extensively. How about
> '[trivial]'?
If reviwer can pick up trivial patches easily by this way, I have no
objection
Robert Dewar writes:
> The worst thing for me about -O1 is arguments disappearing in the trace
> back, that's really a deal breaker.
Wasn't Alexandre Oliva's "VTA" work supposed to help this kind of
thing...? Did that ever get merged?
-miles
--
Joy, n. An emotion variously excited, but in its
Miles Bader writes:
> Robert Dewar writes:
>> The worst thing for me about -O1 is arguments disappearing in the trace
>> back, that's really a deal breaker.
>
> Wasn't Alexandre Oliva's "VTA" work supposed to help this kind of
> thing...? Did that ever get merged?
It did get merged. My sense
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