The current implementation returns
(_M_y & (__is_multiple_of_100 ? 15 : 3)) == 0;
where __is_multiple_of_100 is calculated using an obfuscated algorithm which
saves one ror instruction when compared to _M_y % 100 == 0 [1].
In leap years calculation, it's mathematically correct to replace the
d
When year_month_day_last::day() was implemented, Dr. Matthias Kretz realised
that the operation "& 1" wasn't necessary but we did not patch it at that
time. This patch removes the unnecessary operation.
libstdc++-v3/ChangeLog:
* include/std/chrono:
---
libstdc++-v3/include/std/chrono | 24 +
On Thu, Nov 09, 2023 at 07:07:03PM -0500, Jason Merrill wrote:
> On 11/9/23 14:58, Marek Polacek wrote:
> > Bootstrapped/regtested on x86_64-pc-linux-gnu, ok for trunk?
> >
> > -- >8 --
> > Here we are wrongly parsing
> >
> >int y(auto(42));
> >
> > which uses the C++23 cast-to-prvalue featu
Hello-
The PR may be 20 years old, but by now it only needs a one-line fix :). Is
it OK please? Bootstrapped + regtested all langauges on x86-64 Linux.
Thanks!
-Lewis
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=9471
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=47857
-- >8 --
libcpp will gener
> I pushed this to the trunk after fixing a few minor whitespace nits.
> You didn't mention the divdf change, but I'll assume that was just an
> oversight.
Yeah, a couple of minor fixes there that I forgot to mention in the log.
> I'm largely trusting your reputation on the fpgnulib changes.
Tested x86_64-linux (-m32 and -m64). Pushed to trunk.
-- >8 --
Clang has an 'assume' attribute, but it's a function attribute not a
statement attribute. The recently-added use of the statement form causes
an error with Clang.
libstdc++-v3/ChangeLog:
PR libstdc++/112467
* include
Tested x86_64-linux. Pushed to trunk.
-- >8 --
LWG 3950 points out that the comparisons of std::basic_string_view can
be simplified to just a single overload of operator== and a single
overload of operator<=>. Those overloads work fine for homogeneous
comparisons of two string view objects.
libs
Tested x86_64-linux. Pushed to trunk.
-- >8 --
C++20 allows class types as non-type template parameters, but
std::integer_sequence explicitly disallows them. Enforce that.
libstdc++-v3/ChangeLog:
PR libstdc++/112473
* include/bits/utility.h (integer_sequence): Add static_assert.
Tested x86_64-linux. Pushed to trunk.
-- >8 --
When I added these tests I gave them .h file extensions, so they've
never been run.
They need to use the no_pch option, so that they only test the
header and don't get via .
libstdc++-v3/ChangeLog:
* testsuite/26_numerics/headers/complex
Tested x86_64-linux. Pushed to trunk.
-- >8 --
These overloads are deprecated in C++20 (and likely to be removed for
C++26). The std::atomic> specialization should be
preferred in new code.
libstdc++-v3/ChangeLog:
* include/bits/shared_ptr_atomic.h (atomic_is_lock_free)
(atomic_
Tested x86_64-linux. Pushed to trunk.
-- >8 --
The -ffreestanding option disables Debug Mode, forcibly #undef'ing
_GLIBCXX_DEBUG. This means that the dangling checks in std::pair are
disabled for -ffreestanding in C++17 and earlier, because they depend on
_GLIBCXX_DEBUG. Adjust the target specifi
Tested x86_64-linux. Pushed to trunk.
-- >8 --
All std::span member functions are pure functions that have no side
effects. They are only useful for their return value, so they should all
warn if that value is not used.
libstdc++-v3/ChangeLog:
* include/std/span (span, as_bytes, as_writ
Tested x86_64-linux. Pushed to trunk.
-- >8 --
Adding this attribute means users get a warning when they accidentally
create a temporary lock instead of creating an automatic variable with
block scope.
For std::lock_guard both constructors have side effects (they both take
a mutex and so both ca
Tested x86_64-linux. Pushed to trunk.
-- >8 --
The checks in linkage.m4 try to support math functions prefixed with
underscores, like _acosf and _isinf. However, that doesn't work because
they're renamed to the standard names using a macro, but then
undefines that macro again.
This simply remov
I've finally convinced myself that this patch is OK, because we
provide stub versions of all the functions being declared here. So if
a target is missing them, we provide them anyway. That happens to be
broken for the avr target, but that defaults to --disable-libstdcxx
anyway.
I've pushed the pat
Tested x86_64-pc-linux-gnu, applying to trunk.
-- >8 --
This fixes
FAIL: g++.dg/cpp0x/lambda/lambda-decltype3.C -std=c++11 (test for excess
errors)
due to
lambda-decltype3.C:25:6: error: lambda capture initializers only available with
'-std=c++14' or '-std=gnu++14' [-Wc++14-extensions]
gcc/tes
On 11/10/23 03:00, Prathamesh Kulkarni wrote:
On Thu, 5 Oct 2023 at 00:00, Brendan Shanks wrote:
Hi,
This patch implements pex_unix_exec_child using posix_spawn when
available.
This should especially benefit recent macOS (where vfork just calls
fork), but should have equivalent or faster per
On 8/25/23 6:20 AM, Kewen.Lin wrote:
> btw, I was also expecting that we don't implicitly set
> OPTION_MASK_PCREL any more for Power10, that is to remove
> OPTION_MASK_PCREL from OTHER_POWER10_MASKS.
So my patch removes the flag from the default power10 flags, like
you want. However, it doesn't r
On 11/10/23 15:06, Florian Weimer wrote:
gcc/testsuite/
* gcc.c-torture/compile/BUG17.c (main): Add missing int
return type and missing void type.
* gcc.c-torture/compile/BUG18.c (main): Likewise. Call
__builtin_printf instead of printf.
* gcc.c-tortur
On 11/10/23 15:07, Florian Weimer wrote:
gcc/testsuite/
* gcc.c-torture/compile/386.c: Compile with -std=gnu89.
* gcc.c-torture/compile/BUG1.c: Likewise.
* gcc.c-torture/compile/BUG11.c: Likewise.
* gcc.c-torture/compile/BUG16.c: Likewise.
* gcc.c-tortu
On 11/10/23 15:07, Florian Weimer wrote:
The execute tests use abort/exit to report failure/success, but
they generally do not declare these functions (or include ).
This change adds declarations as appropriate.
It would have been possible to switch to __builtin_abort and
__builtin_exit inste
On 11/10/23 15:07, Florian Weimer wrote:
This change updates the gcc.c-torture/execute/ to avoid obsolete
language constructs. In the changed tests, use of the features
appears to be accidental, and updating allows the tests run with
the default compiler flags.
gcc/testsuite/
* gcc.
On 8/27/23 9:06 PM, Kewen.Lin wrote:
> Assuming we only have ELFv2_ABI_CHECK in PCREL_SUPPORTED_BY_OS, we
> can have either TARGET_PCREL or !TARGET_PCREL after the checking.
> For the latter, it's fine and don't need any checks. For the former,
> if it's implicit, for !TARGET_PREFIXED we will clean
ChangeLog:
* MAINTAINERS (Write After Approval): Fix indentation and missing email
bracket.
Signed-off-by: Sam James
---
MAINTAINERS | 14 +++---
1 file changed, 7 insertions(+), 7 deletions(-)
diff --git a/MAINTAINERS b/MAINTAINERS
index c43167d9a752..9ad68687f769 100644
--- a
On 8/13/23 20:11, Hans-Peter Nilsson wrote:
On Mon, 1 May 2023, Jeff Law wrote:
Spurred by Segher's RFC, I went ahead and tested several ports with LRA
enabled. Not surprisingly, many failed, but a few built their full set of
libraries successful and of those a few even ran their testsuite
On 8/22/23 20:15, Keith Packard via Gcc-patches wrote:
Check for non-zero denorm in __adddf3. Need to check both the upper and
lower 32-bit chunks of a 64-bit float for a non-zero value when
checking to see if the value is -0.
Fix __addsf3 when the sum exponent is exactly 0xff to ensure that
Joseph Myers writes:
> On Thu, 2 Nov 2023, Sam James wrote:
>
>> maintainer-scripts/
>> * gcc_release: Cleanup whitespace.
>
> OK.
Thanks. Would you mind pushing the two you approved?
As PR: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112469
which has been fixed by Richard patch:
https://gcc.gnu.org/pipermail/gcc-patches/2023-November/635994.html
Add tests to avoid regression. Committed.
PR target/112469
gcc/testsuite/ChangeLog:
* gcc.target/riscv/rvv/autov
On 8/28/23 23:25, Mao via Gcc-patches wrote:
The -fpatchable-function-entry is missing in both the web doc [1]
and the man page's "Option Summary" section.
This patch is to add it.
[1]: https://gcc.gnu.org/onlinedocs/gcc/Option-Summary.html
THanks. I created a ChangeLog and pushed this to t
On 8/30/23 04:13, Manolis Tsamis wrote:
The existing implementation of need_cmov_or_rewire and
noce_convert_multiple_sets_1 assumes that sets are either REG or SUBREG.
This commit enchances them so they can handle/rewire arbitrary set statements.
To do that a new helper struct noce_multiple_s
This patch adds a series of built-in functions to allow users to write code to
do a number of simple operations where the loop is done using the __vector_pair
type. The __vector_pair type is an opaque type. These built-in functions keep
the two 128-bit vectors within the __vector_pair together, a
On Fri, 2023-11-10 at 11:02 -0500, Antoni Boucher wrote:
> Hi.
> This patch fixes the segfault when using -flto with libgccjit (bug
> 111396).
>
> You mentioned in bugzilla that this didn't fix the reproducer for
> you,
Rereading https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111396 it looks
like a
This patch adds a series of built-in functions to allow users to write code to
do a number of simple operations where the loop is done using the __vector_pair
type. The __vector_pair type is an opaque type. These built-in functions keep
the two 128-bit vectors within the __vector_pair together, a
This patch adds a series of built-in functions to allow users to write code to
do a number of simple operations where the loop is done using the __vector_pair
type. The __vector_pair type is an opaque type. These built-in functions keep
the two 128-bit vectors within the __vector_pair together, a
[combined reply to all three threads]
On 11/9/23 23:24, waffl3x wrote:
I'm unfortunately going down a rabbit hole again.
--function.h:608
`/* If pointers to member functions use the least significant bit to indicate
whether a function is virtual, ensure a pointer to this function will have t
This patch adds a series of built-in functions to allow users to write code to
do a number of simple operations where the loop is done using the __vector_pair
type. The __vector_pair type is an opaque type. These built-in functions keep
the two 128-bit vectors within the __vector_pair together, a
These set of patches add support for using the vector pair load (lxvp, plxvp,
and lxvpx) instructions and the vector pair store (stxvp, pstxvp, and stxvpx)
that were introduced with ISA 3.1 on Power10 systems.
With GCC 13, the only place vector pairs (and vector quads) were used were to
feed into
This is version 2 of the patch to add -mno-load-vector-pair and
-mno-store-vector-pair undocumented tuning switches.
The differences between the first version of the patch and this version is that
I added explicit RTL abi attributes for when the compiler can generate the load
vector pair and store
I noticed while fixing PR106849 that we don't currently check validity
of exporting non-functions via using-declarations either; this patch
adds those checks factored out into a new function. I also tried to make
the error messages a bit more descriptive.
This patch is based on [1] (with the adjus
gcc/testsuite/
* gcc.c-torture/compile/386.c: Compile with -std=gnu89.
* gcc.c-torture/compile/BUG1.c: Likewise.
* gcc.c-torture/compile/BUG11.c: Likewise.
* gcc.c-torture/compile/BUG16.c: Likewise.
* gcc.c-torture/compile/BUG2.c: Likewise.
* gcc.c-t
gcc/testsuite/
* gcc.c-torture/compile/BUG17.c (main): Add missing int
return type and missing void type.
* gcc.c-torture/compile/BUG18.c (main): Likewise. Call
__builtin_printf instead of printf.
* gcc.c-torture/compile/BUG21.c (Nase): Add missing void
gcc/testsuite/
* gcc.c-torture/compile/20080613-1.c (hop_sendmsg): Call
__builtin_memcpy instead of memcpy.
* gcc.c-torture/compile/complex-6.c (bar): Declare.
* gcc.c-torture/compile/pr23445.c (__brelse): Declare.
* gcc.c-torture/compile/pr23946.c (long2str)
These tests use obsolete language constructs, but they are not
clearly targeting C89, either. So use -fpermissive to keep
future errors as warnings.
The reasons why obsolete constructs are used used vary from
test to test. Some tests deliberately exercise later stages
of the compiler that only o
On 8/30/23 04:14, Manolis Tsamis wrote:
This code used to handle register replacement issues with SUBREG before
simplify_replace_rtx was introduced. This should not be needed anymore as
new_val has the correct mode and that should be preserved by
simplify_replace_rtx.
gcc/ChangeLog:
The "length" attribute calculation expressions for branches and jumps
are incorrectly and misleadingly indented, and they overrun the 80
column limit as well, all of this causing troubles in following them.
Correct all these issues.
gcc/
* config/riscv/riscv.md (length): Fix inde
On 10/19/23 13:46, Richard Sandiford wrote:
+ /* Allow a wide range of operations and let the costing function decide
+if the conversion is worth it later. */
+ enum rtx_code code = GET_CODE (src);
+ if (!(CONSTANT_P (src)
+ || code == REG
+ || code
On 10/20/23 03:16, Richard Sandiford wrote:
Thanks for the context.
Robin Dapp writes:
Sorry for the slow review. TBH I was hoping someone else would pick
it up, since (a) I'm not very familiar with this code, and (b) I don't
really agree with the way that the current code works. I'm not
gcc/ChangeLog:
* doc/options.texi (Option properties): Add UrlSuffix and
description of regenerate-opt-urls.py.
* regenerate-opt-urls.py: New file.
---
gcc/doc/options.texi | 17 ++
gcc/regenerate-opt-urls.py | 366 +
2 files chang
This patch adds machinery for using the .opt.urls files linking
to the documentation of our options in gcc_urlifier.
For every enabled .opt file, the corresponding .opt.urls file
will also be used when constructing the "optionslist" file.
The patch adds a new awk script to process the optionslist
In r14-5118-gc5db4d8ba5f3de I added a mechanism to automatically add
URLs to quoted strings in diagnostics. This was based on a data table
mapping strings to URLs, with placeholder data covering various pragmas
and a couple of options.
The following patches add automatic URLification in our diagn
On 11/10/23 10:28, Patrick Palka wrote:
On Fri, 10 Nov 2023, Patrick Palka wrote:
On Thu, 9 Nov 2023, Jason Merrill wrote:
On 11/8/23 16:59, Patrick Palka wrote:
Bootstrapped and regtested on x86_64-pc-linux-gnu, does this look OK for
trunk?
-- >8 --
Here when building up the non-dependent
On 10/20/23 01:04, Robin Dapp wrote:
But I'm not sure which cases this code is trying to catch. Is it trying
to catch cases where seq2 "spontaneously" uses registers that happen to
overlap with cond? If so, then when does that happen? And if it does
happen, wouldn't the sequence also have
On 10/19/23 13:41, Richard Sandiford wrote:
Manolis Tsamis writes:
This is an extension of what was done in PR106590.
Currently if a sequence generated in noce_convert_multiple_sets clobbers the
condition rtx (cc_cmp or rev_cc_cmp) then only seq1 is used afterwards
(sequences that emit the
On Fri, Nov 10, 2023 at 5:12 AM Richard Biener wrote:
>
> On Fri, 10 Nov 2023, Tamar Christina wrote:
>
> >
> > Hi Prathamesh,
> >
> > Yes Arm requires SIMD for copysign. The testcases fail because they don't
> > turn on Neon.
> >
> > I'll update them.
>
> On x86_64 with -m32 I see
>
> FAIL: gcc.
On 10/25/23 04:15, Jin Ma wrote:
+;; The conversion of DF to BF needs to be done with SF if there is a
+;; chance to generate at least one instruction, otherwise just using
+;; libfunc __truncdfbf2.
+(define_expand "truncdfbf2"
+ [(set (match_operand:BF 0 "register_operand" "=f")
+
On 10/21/23 05:09, Martin Uecker wrote:
C programmers increasingly use static to indicate that
pointer parameters are non-null. Clang can exploit this
for warnings and optimizations. GCC has some warnings
but not all warnings it has for nonnull. Below is a
patch to add a nonnull attribute
On 11/6/23 05:32, Richard Sandiford wrote:
Ping.
Richard Sandiford via Gcc-patches writes:
excl_hash_traits can be defined more simply by reusing existing traits.
Tested on aarch64-linux-gnu. OK to install?
Richard
gcc/
* attribs.cc (excl_hash_traits): Delete.
(test_att
On 11/6/23 05:24, Richard Sandiford wrote:
attribute_ignored_p already used a namespace-aware query
to find the attribute_spec for an existing attribute:
const attribute_spec *as = lookup_attribute_spec (TREE_PURPOSE (attr));
This patch does the same for other callers in the file.
Te
On 11/8/23 04:09, Mary Bennett wrote:
Spec:
github.com/openhwgroup/core-v-sw/blob/master/specifications/corev-builtin-spec.md
Contributors:
Mary Bennett
Nandni Jamnadas
Pietra Ferreira
Charlie Keaney
Jessica Mills
Craig Blackmore
Simon Cook
Jeremy Bennett
Hel
On Fri, 10 Nov 2023, Jason Merrill wrote:
> On 11/10/23 12:25, Patrick Palka wrote:
> > On Thu, 9 Nov 2023, Jason Merrill wrote:
> >
> > > On 11/7/23 10:08, Patrick Palka wrote:
> > > > bootstrapped and regtested on x86_64-pc-linxu-gnu, does this look OK for
> > > > trunk?
> > > >
> > > > -- >8
On Thu, Nov 09, 2023 at 03:27:11PM +0800, Hongtao Liu wrote:
> On Thu, Nov 9, 2023 at 3:15 PM Hu, Lin1 wrote:
> >
> > This patch aims to avoid generate vblendps with ymm16+, And have
> > bootstrapped and tested on x86_64-pc-linux-gnu{-m32,-m64}. Ok for trunk?
> >
> > gcc/ChangeLog:
> >
> >
On 11/10/23 12:25, Patrick Palka wrote:
On Thu, 9 Nov 2023, Jason Merrill wrote:
On 11/7/23 10:08, Patrick Palka wrote:
bootstrapped and regtested on x86_64-pc-linxu-gnu, does this look OK for
trunk?
-- >8 --
In the COMPOUND_EXPR case of tsubst_expr, we were redundantly clearing
the tf_declt
On 11/9/23 17:20, Jeff Law wrote:
On 11/2/23 17:45, Patrick O'Neill wrote:
Testcases in g++.dg/vect rely on check_vect_support_and_set_flags
to set dg-do-what-default and avoid running vector tests on non-vector
targets. The three testcases in this patch overwrite the default with
dg-do run.
* config/aarch64/linux-unwind.h
(aarch64_fallback_frame_state): Add cast to the expected type
in sc assignment.
(Almost a v2, but the other issue was already fixed via in r14-4183.)
---
libgcc/config/aarch64/linux-unwind.h | 5 -
1 file changed, 4 insertions(+), 1 del
On 11/9/23 17:34, Jeff Law wrote:
On 11/3/23 00:18, Patrick O'Neill wrote:
On non-vector targets dejagnu attempts dg-do compile for pr95401.cc.
This produces a command like this:
g++ pr95401.cc pr95401a.cc -S -o pr95401.s
which isn't valid (gcc does not accept multiple input files when using
On Thu, 9 Nov 2023, Jason Merrill wrote:
> On 11/7/23 10:08, Patrick Palka wrote:
> > bootstrapped and regtested on x86_64-pc-linxu-gnu, does this look OK for
> > trunk?
> >
> > -- >8 --
> >
> > In the COMPOUND_EXPR case of tsubst_expr, we were redundantly clearing
> > the tf_decltype flag when
The following patch fixes
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112337
The patch was successfully bootstrapped an tested on x86-64, ppc64le,
and aarch64.
commit b3d1d30eeed67c78e223c146a464d2fdd1dde894
Author: Vladimir N. Makarov
Date: Fri Nov 10 11:14:46 2023 -0500
[IRA]: Check
Andris Pavēnis writes:
> Fixing these errors (attached patch for master branch) was not sufficient for
> building Ada cross-compiler, but it fixed compiler errors.
>
> This would perhaps qualify for trivial change, but it seems that I no more
> have
> write access (I got it in 2015, but have n
Hi.
This patch fixes the segfault when using -flto with libgccjit (bug
111396).
You mentioned in bugzilla that this didn't fix the reproducer for you,
but it does for me.
At first, the test case would not pass, but running "make install" made
it pass.
Not sure if this is normal.
Could you please
On Fri, Nov 10, 2023 at 04:53:57PM +0800, Lehua Ding wrote:
> > > The divide by zero error above is interesting. I'm not sure why
> > > ira_reg_class_max_nregs[] yields 0 for the pseudo register 168 in
> > > the following rtx:
> > > (debug_insn 168 167 169 19 (var_location:SI encoding (reg/v:SI 168
This patch allows an .md iterator to include the contents of
previous iterators, possibly with an extra condition attached.
Too much indirection might become hard to follow, so for the
AArch64 changes I tried to stick to things that seemed likely
to be uncontroversial:
(a) structure iterators tha
Use unrelated register initializations using zero/sign-extend instructions
to clear stack protector scratch register.
Handle only SI -> DImode extensions for 64-bit targets, as this is the
only extension that triggers the peephole in a non-negligible number.
Also use explicit check for word_mode
On Fri, 10 Nov 2023, Patrick Palka wrote:
> On Thu, 9 Nov 2023, Jason Merrill wrote:
>
> > On 11/8/23 16:59, Patrick Palka wrote:
> > > Bootstrapped and regtested on x86_64-pc-linux-gnu, does this look OK for
> > > trunk?
> > >
> > > -- >8 --
> > >
> > > Here when building up the non-dependent
On 10/11/2023 14:46, Kyrylo Tkachov wrote:
-Original Message-
From: Richard Earnshaw
Sent: Friday, November 10, 2023 11:31 AM
To: Wilco Dijkstra ; Kyrylo Tkachov
; GCC Patches
Cc: Richard Sandiford ; Richard Earnshaw
Subject: Re: [PATCH] AArch64: Cleanup memset expansion
On 10
On Thu, 9 Nov 2023, Jason Merrill wrote:
> On 11/8/23 16:59, Patrick Palka wrote:
> > Bootstrapped and regtested on x86_64-pc-linux-gnu, does this look OK for
> > trunk?
> >
> > -- >8 --
> >
> > Here when building up the non-dependent .* expression, we crash from
> > fold_convert on 'b.a' due to
On Tue, Nov 7, 2023 at 4:04 AM Jin Ma wrote:
>
> The XTheadInt ISA extension provides acceleration interruption
> instructions as defined in T-Head-specific:
>
> * th.ipush
> * th.ipop
Overall, it looks ok to me.
There are just a few small issues to clean up (see below).
>
> gcc/ChangeLog:
>
>
On Wed, 1 Nov 2023, Patrick Palka wrote:
> On Tue, 31 Oct 2023, Patrick Palka wrote:
>
> > Bootstrapped and regtested on x86_64-pc-linux-gnu, does this look OK for
> > trunk? Does it look OK for release branches as well for sake of PR111703?
Ping.
> >
> > -- >8 --
> >
> > potential_constant_
> -Original Message-
> From: Richard Earnshaw
> Sent: Friday, November 10, 2023 11:31 AM
> To: Wilco Dijkstra ; Kyrylo Tkachov
> ; GCC Patches
> Cc: Richard Sandiford ; Richard Earnshaw
>
> Subject: Re: [PATCH] AArch64: Cleanup memset expansion
>
>
>
> On 10/11/2023 10:17, Wilco Dij
On Fri, 10 Nov 2023, Richard Biener wrote:
> On Fri, Nov 10, 2023 at 3:18 PM Alexander Monakov wrote:
> >
> >
> > On Fri, 10 Nov 2023, Richard Biener wrote:
> >
> > > > I'm afraid ignoring debug-only BBs goes contrary to overall
> > > > var-tracking design:
> > > > DEBUG_INSNs participate in de
Hello Richard:
On 10/11/23 7:29 pm, Richard Biener wrote:
> On Fri, Nov 10, 2023 at 7:42 AM Ajit Agarwal wrote:
>>
>> Hello Richard:
>>
>>
>> On 09/11/23 6:21 pm, Richard Biener wrote:
>>> On Wed, Nov 8, 2023 at 4:00 PM Ajit Agarwal wrote:
tree-ssa-loop-ivopts : Add live analysis in re
On 11/10/23 03:39, Richard Sandiford wrote:
Lehua Ding writes:
On 2023/11/10 18:16, Richard Sandiford wrote:
Lehua Ding writes:
Hi Richard,
On 2023/11/8 17:40, Richard Sandiford wrote:
Tracking subreg liveness will sometimes expose dead code that
wasn't obvious without it. PR89606 has
On Fri, Nov 10, 2023 at 3:18 PM Alexander Monakov wrote:
>
>
> On Fri, 10 Nov 2023, Richard Biener wrote:
>
> > > I'm afraid ignoring debug-only BBs goes contrary to overall var-tracking
> > > design:
> > > DEBUG_INSNs participate in dependency graph so that schedulers can remove
> > > or
> > >
I'm very sorry, I misunderstood. There's no difference between them, please
ignore it.
马进
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On Fri, 10 Nov 2023, Richard Biener wrote:
> > I'm afraid ignoring debug-only BBs goes contrary to overall var-tracking
> > design:
> > DEBUG_INSNs participate in dependency graph so that schedulers can remove or
> > mutate them as needed when moving real insns across them.
>
> Note that debug
I thought Christoph was already committed? Do you mind describing the
difference between v1 and v2?
On Fri, Nov 10, 2023 at 9:55 PM Jin Ma wrote:
> The t0 register is used as a temporary register for interrupts, so it needs
> special treatment. It is necessary to avoid using "th.ldd" in the inte
On Fri, Nov 10, 2023 at 7:42 AM Ajit Agarwal wrote:
>
> Hello Richard:
>
>
> On 09/11/23 6:21 pm, Richard Biener wrote:
> > On Wed, Nov 8, 2023 at 4:00 PM Ajit Agarwal wrote:
> >>
> >> tree-ssa-loop-ivopts : Add live analysis in regs used in decision making.
> >>
> >> Add live anaysis in regs use
The t0 register is used as a temporary register for interrupts, so it needs
special treatment. It is necessary to avoid using "th.ldd" in the interrupt
program to stop the subsequent operation of the t0 register, so they need to
exchange positions in the function "riscv_for_each_saved_reg".
gcc/Ch
On Fri, Nov 10, 2023 at 2:52 AM liuhongt wrote:
>
> When I'm working on PR112443, I notice there's some misoptimizations: after we
> fold _mm{,256}_blendv_epi8/pd/ps into gimple, the backend fails to combine it
> back to v{,p}blendv{v,ps,pd} since the pattern is too complicated, so I think
> maybe
On Fri, Nov 10, 2023 at 11:10 AM HAO CHEN GUI wrote:
>
> Hi Richard,
>
> 在 2023/11/10 17:06, Richard Biener 写道:
> > On Fri, Nov 10, 2023 at 8:52 AM HAO CHEN GUI wrote:
> >>
> >> Hi Richard,
> >> Thanks so much for your comments.
> >>
> >> 在 2023/11/9 19:41, Richard Biener 写道:
> >>> I'm not sure
On Fri, 10 Nov 2023, Juzhe-Zhong wrote:
> PR: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112438
>
> 1. Since SELECT_VL result is not necessary always VF in non-final iteration.
>
> Current GIMPLE IR is wrong:
>
> # vect_vec_iv_.8_22 = PHI <_21(4), { 0, 1, 2, ... }(3)>
> ...
> _35 = .SELECT_VL
On Fri, Nov 10, 2023 at 12:25 PM Alexander Monakov wrote:
>
>
> On Thu, 9 Nov 2023, Jeff Law wrote:
>
> > > Yeah, I noticed that the scheduler takes care of DEBUG_INSNs as normal
> > > operations. When I started to work on this issue, initially I wanted to
> > > try
> > > something similar to yo
On Fri, Nov 10, 2023 at 12:17 PM Eric Botcazou wrote:
>
> Hi,
>
> this teaches operand_compare to compare constant CONSTRUCTORs, which is quite
> helpful for so-called fat pointers in Ada, i.e. objects that are semantically
> pointers but are represented by structures made up of two pointers. Thi
On Fri, Nov 10, 2023 at 2:20 PM Kito Cheng wrote:
>
> LGTM
Committed after shortening the commit message's heading.
>
> Christoph Müllner 於 2023年11月10日 週五，20:55寫道：
>>
>> On Fri, Nov 10, 2023 at 8:14 AM Jin Ma wrote:
>> >
>> > The t0 register is used as a temporary register for interrupts, so it
On Fri, Nov 10, 2023 at 12:01 PM Prathamesh Kulkarni
wrote:
>
> On Thu, 5 Oct 2023 at 00:00, Brendan Shanks wrote:
> >
> > Hi,
> >
> > This patch implements pex_unix_exec_child using posix_spawn when
> > available.
> >
> > This should especially benefit recent macOS (where vfork just calls
> > fo
Thanks. Robin. Committed.
>> The test patterns are a bit unwieldy but not a blocker
>>IMHO. Could probably done shorter using macro magic?
I have no idea. But I think we can revisit it and refine tests when we have
time.
juzhe.zh...@rivai.ai
From: Robin Dapp
Date: 2023-11-10 20:47
To: Juzhe
LGTM
Christoph Müllner 於 2023年11月10日 週五，20:55寫道：
> On Fri, Nov 10, 2023 at 8:14 AM Jin Ma wrote:
> >
> > The t0 register is used as a temporary register for interrupts, so it
> needs
> > special treatment. It is necessary to avoid using "th.ldd" in the
> interrupt
> > program to stop the subsequ
The following fixes the issue that when SLP stmts are internal defs
but appear invariant because they end up only using invariant defs
then they get scheduled outside of the loop. This nice optimization
breaks down when loop masks or lens are applied since those are not
explicitly tracked as depen
On Fri, 10 Nov 2023, Tamar Christina wrote:
>
> Hi Prathamesh,
>
> Yes Arm requires SIMD for copysign. The testcases fail because they don't
> turn on Neon.
>
> I'll update them.
On x86_64 with -m32 I see
FAIL: gcc.dg/pr55152-2.c scan-tree-dump-times optimized ".COPYSIGN" 1
FAIL: gcc.dg/pr55
On Fri, Nov 10, 2023 at 8:14 AM Jin Ma wrote:
>
> The t0 register is used as a temporary register for interrupts, so it needs
> special treatment. It is necessary to avoid using "th.ldd" in the interrupt
> program to stop the subsequent operation of the t0 register, so they need to
> exchange posi
Hi,
this patch fixes several more FAILs that would only show up in 32-bit runs.
Regards
Robin
gcc/testsuite/ChangeLog:
* gcc.target/riscv/rvv/autovec/binop/vmul-zvfh-run.c: Adjust.
* gcc.target/riscv/rvv/autovec/binop/vsub-zvfh-run.c: Ditto.
* gcc.target/riscv/rvv/autov
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