On 2020/9/25 21:28, Richard Sandiford wrote:
> xionghu luo writes:
>> @@ -2658,6 +2659,45 @@ expand_vect_cond_mask_optab_fn (internal_fn, gcall
>> *stmt, convert_optab optab)
>>
>> #define expand_vec_cond_mask_optab_fn expand_vect_cond_mask_optab_fn
>>
>> +/* Expand VEC_SET internal
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96789
--- Comment #23 from Hongtao.liu ---
> _813 = {_437, _448, _459, _470, _490, _501, _512, _523, _543, _554, _565,
> _576, _125, _143, _161, _179};
The cost of vec_construct in i386 backend is 64, calculated as 16 x 4
cut from i386.c
---
/* N
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96789
--- Comment #22 from Hongtao.liu ---
>One of my workmates found that if we disable vectorization for SPEC2017
>>525.x264_r function sub4x4_dct in source file x264_src/common/dct.c with
>?>explicit function attribute
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97215
--- Comment #5 from Georgi ---
(In reply to Andrew Pinski from comment #3)
> fopen/fread/fwrite DOES NOT come from GCC, but rather than in this case
> mingw.
Ugh, thanks, will alert them about this issue by giving the link to this
tracker.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97215
--- Comment #4 from Georgi ---
(In reply to Andrew Pinski from comment #2)
> You need b if you don't want \r\n to be turned into just \n.
At 11,945th line I use:
```
if ((fp = fopen(argv[1], "rb")) == NULL) {
Hi,
Has this patch been merged ?
Jojo
在 2020年9月15日 +0800 PM5:16，Jojo R ，写道：
> gcc/ChangeLog:
>
> * genemit.c (main): Print 'split line'.
> * Makefile.in (insn-emit.c): Define split count and file
>
> ---
> gcc/Makefile.in | 19 +
> gcc/genemit.c | 104
Hi,
Got it, Thanks :)
Jojo
在 2020年9月27日 +0800 AM3:22，Segher Boessenkool ，写道：
> Hi!
>
> On Wed, Sep 23, 2020 at 10:50:52AM +0800, Jojo R wrote:
> > insn seqs:
> >
> > s1:
> >
> > __builtin_set_float_convert_mode(0);
> > r1 = __builtin_load(a1, a2);
> > r2 = __builtin_float_convert(r1);
>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97215
--- Comment #3 from Andrew Pinski ---
fopen/fread/fwrite DOES NOT come from GCC, but rather than in this case mingw.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97215
Andrew Pinski changed:
What|Removed |Added
Resolution|--- |INVALID
Status|UNCONFIRMED
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97215
--- Comment #1 from Georgi ---
Oops, here are the mentioned files:
www.sanmayce.com/Nakamichi/Satanichi_aka_Nakamichi_2020-Jun-09_BUG_ZEROED-END.zip
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97215
Bug ID: 97215
Summary: Possible fread() malfunction of GCC 7.3.0 (Windows)
Product: gcc
Version: 7.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
The dust seems to have settled from the GCC repository conversion. I
haven't seen any complaints about the conversion since it was
finalized in January, so I'm gathering there have not been any
significant problems with it.
Unfortunately, it left *me* with a problem.
If you're on this list,
Snapshot gcc-10-20200926 is now available on
https://gcc.gnu.org/pub/gcc/snapshots/10-20200926/
and on various mirrors, see http://gcc.gnu.org/mirrors.html for details.
This snapshot has been generated from the GCC 10 git branch
with the following options: git://gcc.gnu.org/git/gcc.git branch
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97208
--- Comment #1 from Romain Naour ---
Hello,
I had to disable -ftree-loop-distribute-patterns while building the kernel on
microblaze (using -Os).
The regression appear since the commit [1] that moved
-ftree-loop-distribute-patterns from -O3
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97210
kargl at gcc dot gnu.org changed:
What|Removed |Added
Priority|P3 |P4
CC|
> On September 26, 2020 12:04:24 AM GMT+02:00, Jan Hubicka
> wrote:
> >Hi,
> >while adding check for gimple_clobber I reversed the return value
> >so instead of ignoring the statement ipa-modref gives up. Fixed thus.
> >This explains the drop between originally reported disambinguations
>
Glibc 2.32 adds a global variable that says whether the process is
single-threaded. We can use this to decide whether to elide atomic
operations, as a more precise and reliable indicator than
__gthread_active_p.
This means that guard variables for statics and reference counting in
shared_ptr can
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96817
--- Comment #17 from CVS Commits ---
The master branch has been updated by Jonathan Wakely :
https://gcc.gnu.org/g:e6923541fae5081b646f240d54de2a32e17a0382
commit r11-3484-ge6923541fae5081b646f240d54de2a32e17a0382
Author: Jonathan Wakely
Hi!
On Wed, Sep 23, 2020 at 10:50:52AM +0800, Jojo R wrote:
> insn seqs:
>
> s1:
>
> __builtin_set_float_convert_mode(0);
> r1 = __builtin_load(a1, a2);
> r2 = __builtin_float_convert(r1);
> __builtin_store(a3, r2);
> __builtin_set_float_convert_mode(0);
>
> s2:
>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94195
Dmitry G. Dyachenko changed:
What|Removed |Added
CC||dimhen at gmail dot com
---
Found when looking at PR97203 (but having no effect there).
The GCC ME optimizes with -O1 (or higher) the
a = sinf(x)
b = cosf(x)
to __builtin_cexpi(x, , )
(...i as in internal; like cexp(z) but with with __real__ z == 0)
In expand_builtin_cexpi, that is handles as:
if (optab_handler
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97044
--- Comment #5 from CVS Commits ---
The master branch has been updated by David Edelsohn :
https://gcc.gnu.org/g:081b3517b4df826ac917147eb906bbb8fc6528b1
commit r11-3482-g081b3517b4df826ac917147eb906bbb8fc6528b1
Author: David Edelsohn
Date:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97214
Bug ID: 97214
Summary: ICE in lookup_template_class_1, at cp/pt.c:9896
Product: gcc
Version: 10.2.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component:
The code that collect2 generates, compiles and links into applications
and shared libraries to initialize constructors and register DWARF tables
is built with the compiler options used to invoke the linker. If the
compiler options change the visibility from default, the library
initialization
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97213
Thanassis Tsiodras changed:
What|Removed |Added
Resolution|--- |FIXED
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97213
--- Comment #3 from Jakub Jelinek ---
Note, I think significant speedup is in tail recursion optimization which will
be prevented even with mergeable task. Computing fibonacci this way is not
efficient.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97213
--- Comment #2 from Thanassis Tsiodras ---
I see. I was not aware of "mergeable", TBH - thanks for pointing it out (it led
me to reading about "data environments").
Thanks, Jakub.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97213
--- Comment #1 from Jakub Jelinek ---
Even with if(false) the implementation has to create a new data environment
etc.
if(false) just means the task will be included, i.e. the generating task will
only continue when the included task finishes
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97213
Bug ID: 97213
Summary: OpenMP "if" is dramatically slower than code-level
"if" - why?
Product: gcc
Version: 10.2.0
Status: UNCONFIRMED
Severity: normal
On Wed, 2 Sep 2020, Jose E. Marchesi via Gcc-patches wrote:
> Your patch dealt with board/multilib_flags, but the same problem exists
> for board/cflags and many other flag-containing options.
What's the use case for that? IIUC board flags are supposed to be ones
that are absolutely required
> Bootstrapped/regtested on x86_64-linux and i686-linux, ok for trunk and
> release branches?
>
> 2020-09-18 Jakub Jelinek
>
> PR middle-end/97073
> * optabs.c (expand_binop, expand_absneg_bit, expand_unop,
> expand_copysign_bit): Check reg_overlap_mentioned_p between target
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96495
--- Comment #6 from CVS Commits ---
The master branch has been updated by Paul Thomas :
https://gcc.gnu.org/g:5b26b3b3f5c75a86a5a3e851866247ac7fcb6c8b
commit r11-3480-g5b26b3b3f5c75a86a5a3e851866247ac7fcb6c8b
Author: Paul Thomas
Date: Sat
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97212
Bug ID: 97212
Summary: [OpenMP] 'depend' clause with 'target nowait' (!) +
'task' does not work
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Keywords:
> On September 26, 2020 12:04:24 AM GMT+02:00, Jan Hubicka
> wrote:
> >Hi,
> >while adding check for gimple_clobber I reversed the return value
> >so instead of ignoring the statement ipa-modref gives up. Fixed thus.
> >This explains the drop between originally reported disambinguations
>
On September 26, 2020 10:20:20 AM GMT+02:00, Jan Hubicka wrote:
>Hi,
>this patchs finishes the parameter tracking by implementing the
>iterative
>dataflow in propagation stage. This is necessary since we now can
>propagate how the pointers are passed around recursive calls (as done
>in
>a
Hi,
this patchs finishes the parameter tracking by implementing the iterative
dataflow in propagation stage. This is necessary since we now can
propagate how the pointers are passed around recursive calls (as done in
a testcase) and thus it is no-longer safe to simply merge all summaries
in one
Hi!
As mentioned earlier, the vectorizer punts on vectorization of loops with
non-constant
steps. As for OpenMP loops it is by the language restriction always possible
to compute
the number of loop iterations before the loop, this change helps those cases
by computing it and using an alternate
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97163
--- Comment #8 from CVS Commits ---
The master branch has been updated by Jakub Jelinek :
https://gcc.gnu.org/g:d00b1b023ecfc3ddc3fe952c0063dab7529d5f7a
commit r11-3476-gd00b1b023ecfc3ddc3fe952c0063dab7529d5f7a
Author: Jakub Jelinek
Date:
> On September 26, 2020 12:04:24 AM GMT+02:00, Jan Hubicka
> wrote:
> >Hi,
> >while adding check for gimple_clobber I reversed the return value
> >so instead of ignoring the statement ipa-modref gives up. Fixed thus.
> >This explains the drop between originally reported disambinguations
>
Hi,
this is variant i comitted. Some further testing has shown a problem in
merge operation returing true even if summary was cleanuped to its
original form. This resulted in infinite loop building firefox.
Second problem was that for recurisve functions we need to merge summary
to itself and
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