Hi,
When building trunk on openSUSE Leap 15.3 with system gcc 7.5.0, I run into:
...
In file included from ../bfd/bfd.h:46:0,
from gdb/defs.h:37,
from gdb/debuginfod-support.c:19:
gdb/debuginfod-support.c: In function ‘bool debuginfod_is_enabled()’:
gdb/../include
Hi!
Both IFN_ATOMIC_BIT_TEST_AND_* and IFN_ATOMIC_*_FETCH_CMP_0 ifns
are matched if their corresponding optab is implemented for the particular
mode. The fact that those optabs are implemented doesn't guarantee
they will succeed though, they can just FAIL in their expansion.
The expansion in that
On Wed, 15 Jun 2022, Jakub Jelinek wrote:
> Hi!
>
> Both IFN_ATOMIC_BIT_TEST_AND_* and IFN_ATOMIC_*_FETCH_CMP_0 ifns
> are matched if their corresponding optab is implemented for the particular
> mode. The fact that those optabs are implemented doesn't guarantee
> they will succeed though, they
This reverts commit 37d57ac9a636f2235f9060e84fb8dd7968abd1dc.
The resolution to https://sourceware.org/bugzilla/show_bug.cgi?id=22962
let GCC pass -m emulation to ld and let the ld emulation configure
default library paths. This scheme is problematic:
* It's not ld's business to specify default
On Wed, Jun 15, 2022 at 09:45:25AM +0200, Richard Biener wrote:
> I wonder if that matching to IFN_ATOMIC_BIT_TEST_AND_* should then
> happen at the time we expand the original builtin call to RTL? Or
> did the matching expose secondary optimization opportunities?
I don't see how we could do what
Segher Boessenkool writes:
Hi Segher,
Thanks so much for your review and sugguestions!
> Hi!
>
> On Tue, Jun 14, 2022 at 09:23:55PM +0800, Jiufu Guo wrote:
>> This patch reduces the threshold of instruction number for storing
>> constant to pool and update cost for constant and mem accessing.
>
On Tue, Jun 7, 2022 at 9:54 AM liuhongt wrote:
>
> >> + (mult:c (plus:c@4 (mult:c@5 @0 INTEGER_CST@1) INTEGER_CST@2)
> >> INTEGER_CST@3)
>
> >since canonicalization puts INTEGER_CSTs last the :c should not be necessary.
>
> Changed.
>
> >> + (if (single_use (@4)
> >> + && single_use (@5))
>
On Wed, 15 Jun 2022, Jakub Jelinek wrote:
> On Wed, Jun 15, 2022 at 09:45:25AM +0200, Richard Biener wrote:
> > I wonder if that matching to IFN_ATOMIC_BIT_TEST_AND_* should then
> > happen at the time we expand the original builtin call to RTL? Or
> > did the matching expose secondary optimizati
On Mon, Jun 13, 2022 at 3:20 PM Christoph Muellner
wrote:
>
> From: Christoph Müllner
>
> This adds Allwinner's D1 to the list of known cores.
> The Allwinner includes a single-core XuanTie C906 and is available
> for quite some time. Note, that the tuning struct for the C906
> is already part of
This was introduced in 2014-12 to use local binding for external symbols
for -fPIE. It avoids a GOT indirection but the same optimizationis
obtained with ld's R_X86_64_[REX_]GOTPCRELX optimization (albeit with
slightly longer code).
One design goal of -fPIE was to avoid copy relocations.
HAVE_LD_
On Wed, 15 Jun 2022 at 10:30, Christoph Müllner
wrote:
>
> On Mon, Jun 13, 2022 at 3:20 PM Christoph Muellner
> wrote:
> >
> > From: Christoph Müllner
> >
> > This adds Allwinner's D1 to the list of known cores.
> > The Allwinner includes a single-core XuanTie C906 and is available
> > for quite
On Tue, Jun 14, 2022 at 06:41:37PM +0200, Thomas Schwinge wrote:
> Hi Jakub!
>
> On 2022-06-13T14:06:39+0200, Jakub Jelinek via Gcc-patches
> wrote:
> > OpenMP 5.2 changed once more what device numbers are allowed.
>
> > libgomp/
>
> > * testsuite/libgomp.c-c++-common/target-is-accessibl
On Wed, Jun 15, 2022 at 10:39 AM Philipp Tomsich
wrote:
>
> On Wed, 15 Jun 2022 at 10:30, Christoph Müllner
> wrote:
> >
> > On Mon, Jun 13, 2022 at 3:20 PM Christoph Muellner
> > wrote:
> > >
> > > From: Christoph Müllner
> > >
> > > This adds Allwinner's D1 to the list of known cores.
> > > T
Please update the commit message to reflect this.
On Wed, 15 Jun 2022 at 10:56, Christoph Müllner
wrote:
>
> On Wed, Jun 15, 2022 at 10:39 AM Philipp Tomsich
> wrote:
> >
> > On Wed, 15 Jun 2022 at 10:30, Christoph Müllner
> > wrote:
> > >
> > > On Mon, Jun 13, 2022 at 3:20 PM Christoph Muellne
On Wed, Jun 15, 2022 at 10:26:39AM +0200, Richard Biener wrote:
> Ah, that might be a nice way to simplify the fallback indeed.
>
> > > The back-and-forth is a big ugly IMHO and it would suggest we can
> > > always match to the IFN since we can fall back to the builtin
> > > call as expansion...?
Ping
في الجمعة، ١٠ يونيو، ٢٠٢٢ ٥:٥٦ م Mohamed Atef
كتب:
>
> libgomp/ChangeLog
>
> 2022-06-10 Mohamed Atef
>
> * ompd-helper.h (DEREFERENCE, ACCESS_VALUE): New macros.
> * ompd-helper.c (gompd_get_nthread, gompd_get_thread_limit,
> gomp_get_run_shed, gompd_get_run_sched_chunk_size,
> gompd_get
Tamar pointed out that:
(unspec:M ... )
didn't work when a value of attribute FOO was defined by
define_constant, such as in:
(define_int_attribute FOO [(UNSPEC_A "UNSPEC_B") ...])
This is because symbolic constants are substituted during lexing
and only apply to bare symbol names, not stri
In f2ebf2d98efe0ac2314b58cf474f44cb8ebd5244 I'd forced the
chosen unroll factor to be a factor of the VF, in order to
work around an exact_div ICE in PR105254. This was completely
bogus -- clearly I didn't look in enough detail at why we ended
up with an unrolled VF that wasn't a multiple of the U
Hi,
This patch rejigs the logic for completing D types with (eventually)
recursive references to itself within its members. Because of these
forward/recursive references, the TYPE_SIZE, TYPE_ALIGN, and TYPE_MODE
of structs and enums were set before laying out its members.
This adds a new macro T
When DSE asks whether __real a is using __imag a it gets a surprising
result when a is a FUNCTION_DECL. The following makes sure this case
is less surprising to callers but keeping the bail-out for the
non-decl case where it is true that PTA doesn't track aliases to code
correctly.
Bootstrapped a
For a [0][0] array we have to be careful when dividing by the element
size which is zero for the outermost dimension. Luckily the division
is only for an overflow check which is pointless for array size zero.
Bootstrapped and tested on x86_64-unknown-linux-gnu, pushed.
2022-06-15 Richard Biener
Jeff Law via Gcc-patches writes:
> On 6/13/2022 5:54 AM, Richard Biener wrote:
>> On Sun, Jun 12, 2022 at 7:27 PM Jeff Law via Gcc-patches
>> wrote:
>> [...]
>>> On a related topic, any thoughts on keeping complex objects as complex
>>> types/modes through gimple and into at least parts of the RT
From: Christoph Müllner
The current description of RISCV_CORE() does not match the
implementation. This commit provides a fix for that.
gcc/ChangeLog:
* config/riscv/riscv-cores.def: Fix comment.
Signed-off-by: Christoph Müllner
---
gcc/config/riscv/riscv-cores.def | 12 +---
From: Christoph Müllner
This adds T-Head's XuanTie C906 to the list of known cores as "thead-c906".
The C906 is shipped for quite some time (it is the core of the Allwinner D1).
Note, that the tuning struct for the C906 is already part of GCC (it is
also name "thead-c906").
gcc/ChangeLog:
Hi,
This patch sets the TYPE_ARTIFICIAL flag on internally generated
object.TypeInfo types, preventing them from triggering warnings when
compiling with `-Wpadded'.
Regression tested on x86_64-linux-gnu/-m32/-mx32, committed to mainline,
and backported to the release/gcc-10, gcc-11, and gcc-12 br
On 2022/06/15 5:17, Max Filippov wrote:
> Hi Suwa-san,
hi!
> This change results in a bunch of new regression test failures:
> The code generated for e.g. gcc.c-torture/execute/921208-2.c looks like this:
oh, PICed...
indirect (incl. via function pointer, virtual functions and of course PIC ones
I clearly wasn't thinking straight when I wrote the arm_bfi_1_p
function and used XUINT rather than UINTVAL when extracting CONST_INT
values. It seemed to work in testing, but was incorrect and failed
RTL checking.
Fixed thusly:
gcc/ChangeLog:
PR target/105974
* config/arm/arm.
On 6/15/22 04:24, Richard Biener wrote:
diff --git a/gcc/match.pd b/gcc/match.pd
index 44a385b912d..54f53a1f988 100644
--- a/gcc/match.pd
+++ b/gcc/match.pd
@@ -489,6 +489,88 @@ DEFINE_INT_AND_FLOAT_ROUND_FN (RINT)
(if (!overflow || TYPE_OVERFLOW_WRAPS (type))
(mult @0 { wide_int_to_tr
On 6/13/22 21:24, David Malcolm wrote:
On Mon, 2022-06-13 at 20:45 -0400, Aldy Hernandez wrote:
Final implies we can't further derive from the derived class, right?
"final" on a vfunc implies that nothing overrides that vfunc, but you
could still have further derived classes.
You can think of
It turns out that 'implementation partition' is not a term used in the
std, and is confusing to users. Let's use the better term 'internal
partition'. While there, adjust header unit naming.
nathan
--
Nathan SidwellFrom 052d89537a4c09e1e1437042e2d1ea215656325f Mon Sep 17 00:00:00 2001
From:
The code in gen_cpymem_ldrd_strd has been incorrect for big-endian
since r230663. The problem is that we use gen_lowpart, etc. to split
the 64-bit quantity, but fail to account for the fact that these
routines are really dealing with 64-bit /values/ and in big-endian the
ordering of the sub-regis
The recent internal-fn “clean-ups” triggered problems on nvptx
because some of the omp_simt_* patterns had modeless operands.
I wondered about adapting expand_fn_using_insn to cope with that,
but then the problem becomes: what should the mode of operand 0
be when there is no lhs? The answer depend
Hi Wei,
On 6/8/22 02:35, jiawei wrote:
From: Jia-wei Chen
In rv32 regression test, this cases will report an error:
"cc1: error: ABI requires '-march=rv32'"
Add '-mabi' option will fix this.
gcc/testsuite/ChangeLog:
* gcc.target/riscv/pr105666.c: New options.
---
gcc/testsuite/
Hi!
On Wed, Jun 15, 2022 at 04:19:41PM +0800, Jiufu Guo wrote:
> Segher Boessenkool writes:
> > Have you tried with different limits?
> I drafted cases(C code, and updated asm code) to test runtime costs for
> different code sequences: building constants with 5 insns; with 3
> insns and 2 insns;
Hi,
This patch adds the visibility attribute to the D compiler, and library
helpers `@visibility' and `@hidden' to the run-time library.
The `@visibility' attribute is functionality the same as
`__attribute__((visibility))', and `@hidden' is a convenience alias to
`@visibility("hidden")' defined
On Tue, Jun 14, 2022 at 05:26:49PM -0400, Lewis Hyatt wrote:
> Hello-
>
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103902
>
> The attached patch resolves PR preprocessor/103902 as described in the patch
> message inline below. bootstrap + regtest all languages was successful on
> x86-64 Linux
Dear all,
we need to check the POS (and LEN) arguments of bit intrinsics
when simplifying, e.g. when used in array constructors.
Otherwise we ICE. Found by Gerhard.
The fix is straightforward, see attached.
Regtested on x86_64-pc-linux-gnu. OK for mainline?
Thanks,
Harald
From 32c95012378ada
On 6/14/22 07:44, Jakub Jelinek wrote:
On Mon, Jun 13, 2022 at 03:53:13PM -0400, Jason Merrill via Gcc-patches wrote:
When not optimizing, we can't do anything useful with unreachability in
terms of code performance, so we might as well improve debugging by turning
__builtin_unreachable into a t
On 6/14/22 22:53, Yonghong Song wrote:
>
>
> On 6/7/22 2:43 PM, David Faust wrote:
>> Hello,
>>
>> This patch series adds support for:
>>
>> - Two new C-language-level attributes that allow to associate (to "annotate"
>> or
>>to "tag") particular declarations and types with arbitrary stri
Hi Jakub!
On 2022-06-15T10:46:30+0200, Jakub Jelinek wrote:
> On Tue, Jun 14, 2022 at 06:41:37PM +0200, Thomas Schwinge wrote:
>> On 2022-06-13T14:06:39+0200, Jakub Jelinek via Gcc-patches
>> wrote:
>> > OpenMP 5.2 changed once more what device numbers are allowed.
>>
>> > libgomp/
>>
>> >
Hi,
This patch adds the `@no_sanitize' attribute to the D front-end.
The `@no_sanitize` attribute disables a particular sanitizer for this
function, analogous to `__attribute__((no_sanitize))'. The library also
defines `@noSanitize' to be compatible with the LLVM D compiler's
`ldc.attributes'.
Hi Tom!
On 2022-05-13T16:20:14+0200, I wrote:
> On 2022-02-04T13:09:29+0100, Tom de Vries via Gcc wrote:
>> On 2/4/22 08:21, Thomas Schwinge wrote:
>>> On 2022-02-03T13:35:55+, "vries at gcc dot gnu.org via Gcc-bugs"
>>> wrote:
I've tested this using (recommended) driver 470.94 on boar
On Mon, Jun 13, 2022 at 9:01 AM Richard Biener
wrote:
>
>
>
> > Am 13.06.2022 um 16:36 schrieb H.J. Lu :
> >
> > On Mon, Jun 13, 2022 at 3:11 AM Richard Biener
> > wrote:
> >>
> >>> On Tue, Jun 7, 2022 at 9:02 PM H.J. Lu via Gcc-patches
> >>> wrote:
> >>>
> >>> Add -fextra-libc-function=memcmpe
Tested on x86_64-pc-linux-gnu.
Pushed to trunk as r13-1116-g44681d45473883.
gcc/testsuite/ChangeLog:
* gcc.dg/analyzer/uninit-1.c: Add test coverage of attempts
to jump through an uninitialized function pointer, and of attempts
to pass an uninitialized value to a function
I've been using this tweak to the output of
-fdump-analyzer-exploded-graph in my working copies for a while;
the extra red nodes make it *much* easier to find the places where
diagnostics are being emitted (or rejected by the diagnostic_manager).
Successfully bootstrapped & regrtested on x86_64-pc
On Wed, 2022-06-15 at 09:33 -0400, Andrew MacLeod wrote:
> On 6/13/22 21:24, David Malcolm wrote:
> > On Mon, 2022-06-13 at 20:45 -0400, Aldy Hernandez wrote:
> > > Final implies we can't further derive from the derived class,
> > > right?
> > "final" on a vfunc implies that nothing overrides that
-fanalyzer runs late compared to other code analysis tools, in that in
runs on the partially-optimized gimple-ssa representation. I chose this
point to run in the hope of easy integration with LTO.
As PR analyzer/105962 notes, this means that function inlining can occur
before the -fanalyzer "see
On 6/15/22 1:57 PM, David Faust wrote:
On 6/14/22 22:53, Yonghong Song wrote:
On 6/7/22 2:43 PM, David Faust wrote:
Hello,
This patch series adds support for:
- Two new C-language-level attributes that allow to associate (to "annotate" or
to "tag") particular declarations and types
On Wed, 15 Jun 2022 10:35:36 PDT (-0700), Vineet Gupta wrote:
Hi Wei,
On 6/8/22 02:35, jiawei wrote:
From: Jia-wei Chen
In rv32 regression test, this cases will report an error:
"cc1: error: ABI requires '-march=rv32'"
Add '-mabi' option will fix this.
gcc/testsuite/ChangeLog:
*
On Wed, Jun 15, 2022 at 2:44 PM H.J. Lu via Gcc-patches
wrote:
>
> On Mon, Jun 13, 2022 at 9:01 AM Richard Biener
> wrote:
> >
> >
> >
> > > Am 13.06.2022 um 16:36 schrieb H.J. Lu :
> > >
> > > On Mon, Jun 13, 2022 at 3:11 AM Richard Biener
> > > wrote:
> > >>
> > >>> On Tue, Jun 7, 2022 at 9:0
On Wed, Jun 15, 2022 at 5:23 AM Takayuki 'January June' Suwa
wrote:
>
> On 2022/06/15 5:17, Max Filippov wrote:
> > Hi Suwa-san,
> hi!
>
> > This change results in a bunch of new regression test failures:
> > The code generated for e.g. gcc.c-torture/execute/921208-2.c looks like
> > this:
> oh,
On Mon, Jun 13, 2022 at 8:54 PM Takayuki 'January June' Suwa
wrote:
>
> This patch offers better RTL representations against straightforward
> derivations from some tree optimizers' canonicalized forms.
>
> - rounding up to even, such as '(x + (x & 1))', is canonicalized to
> '((x + 1) & -2)', b
On Mon, Jun 13, 2022 at 8:54 PM Takayuki 'January June' Suwa
wrote:
>
> When spilled DFmode registers are reloaded in, once loaded into a pair of
> SImode regs and then copied from that regs. Such unwanted reg-reg moves
> seems not to be eliminated at the "cprop_hardreg" stage, despite no problem
On Mon, Jun 13, 2022 at 8:54 PM Takayuki 'January June' Suwa
wrote:
>
> RTL expansion of substitution to [DS]Cmode hard register includes obstructive
> register clobber.
>
> A simplest example:
>
> double _Complex test(double _Complex c) {
> return c;
> }
>
> will be converted to:
>
On Mon, Jun 13, 2022 at 8:54 PM Takayuki 'January June' Suwa
wrote:
>
>
> gcc/ChangeLog:
> * doc/invoke.texi: Document -mextra-l32r-costs= option.
> ---
> gcc/doc/invoke.texi | 11 ++-
> 1 file changed, 10 insertions(+), 1 deletion(-)
Committed to master.
--
Thanks.
-- Max
Committed with a minor commit log fix, thanks!
>
> In rv32 regression test, this cases will report an error:
>
> "cc1: error: ABI requires '-march=rv32'"
>
> Add '-mabi' option will fix this.
>
> gcc/testsuite/ChangeLog:
>
> * gcc.target/riscv/pr105666.c: New options.
^^^ here should be a
LGTM, thanks for correcting the comments !
On Wed, Jun 15, 2022 at 7:47 PM Christoph Muellner
wrote:
>
> From: Christoph Müllner
>
> The current description of RISCV_CORE() does not match the
> implementation. This commit provides a fix for that.
>
> gcc/ChangeLog:
>
> * config/riscv/ris
LGTM, thanks!
On Wed, Jun 15, 2022 at 7:48 PM Christoph Muellner
wrote:
>
> From: Christoph Müllner
>
> This adds T-Head's XuanTie C906 to the list of known cores as "thead-c906".
> The C906 is shipped for quite some time (it is the core of the Allwinner D1).
> Note, that the tuning struct for t
Hi,
Recently we added arm star-mc1 cpu support to upstream:
https://gcc.gnu.org/pipermail/gcc-patches/2022-June/596379.html
It would be great if we can describe it on gcc-13 changes.html as well.
Attached is the patch for gcc-wwwdocs repository.
Is it OK?
Regards,
jasonwucjFrom 379e1b67b92beca
@Honza: PING
On 5/20/22 09:46, Martin Liška wrote:
> On 5/19/22 17:02, Jan Hubicka wrote:
>>> Similarly to cgraph_nodes, it may happen that body_removed is set
>>> during merging of symbols.
>>>
>>> PR ipa/105600
>>>
>>> Patch can bootstrap on x86_64-linux-gnu and survives regression tests.
>>
PING^2
On 5/24/22 13:35, Martin Liška wrote:
> PING^1
>
> On 5/5/22 20:15, Martin Liška wrote:
>> On 5/5/22 15:49, Jan Hubicka wrote:
>>> Hi,
The patch simplifies usage of the profile_{count,probability} types.
Patch can bootstrap on x86_64-linux-gnu and survives regression tests.
On 6/1/22 17:14, Jeff Law via Gcc-patches wrote:
>
>
> On 5/4/2022 1:14 PM, Martin Liška wrote:
>> Right now, when a \$x escape sequence occures, the
>> next character after $x is skipped, which is bogus.
>>
>> The code has very low coverage right now.
>>
>> Patch can bootstrap on x86_64-linux-gn
Hi,
This patch uses CC instead of CCFP for all BCD operations. Thus, infinite
math flag has no impact on BCD operations. To support BCD overflow and
invalid coding, ordered and unordered are added into CC mode. With CC,
"ge" and "le" are converted to reverse comparison. So the invalid coding
need
Fixes:
gcc/cp/decl2.cc:158:54: warning: unused parameter 'entry' [-Wunused-parameter]
---
gcc/cp/decl2.cc | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/gcc/cp/decl2.cc b/gcc/cp/decl2.cc
index a8f3e6e5fba..0c4492f7354 100644
--- a/gcc/cp/decl2.cc
+++ b/gcc/cp/decl2.cc
@@ -155,
That supports skipping of an object file (LDPS_NO_SYMS).
lto-plugin/ChangeLog:
* lto-plugin.c (struct plugin_file_info): Add skip_file flag.
(write_resolution): Write resolution only if get_symbols !=
LDPS_NO_SYMS.
(all_symbols_read_handler): Ignore file if skip_file is t
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