https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99428
Bug ID: 99428
Summary: possible missed optimization for dead code elimination
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
/local/include/c++/11.0.1/istream: At global scope:
/usr/local/include/c++/11.0.1/istream: warning: not writing module
‘/usr/local/include/c++/11.0.1/istream’ due to errors
g++ (GCC) 11.0.1 20210305 (experimental)
Copyright (C) 2021 Free Software Foundation, Inc.
This is free software; see
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99426
Bug ID: 99426
Summary: [modules] failed to read compiled module cluster 1186:
Bad file data
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
g++ (GCC) 11.0.1 20210305 (experimental)
Copyright (C) 2021 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTAB
ructions.
g++ (GCC) 11.0.1 20210305 (experimental)
Copyright (C) 2021 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
gcc/cp/parser.c:20411
0xad6988 cp_parser_declaration
../../gcc/gcc/cp/parser.c:14096
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
g++ (GCC) 11.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99283
--- Comment #4 from Alexander Lelyakin ---
ICE in assert_definition is not seen in version 20210305.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96330
--- Comment #3 from CVS Commits ---
The master branch has been updated by Patrick Palka :
https://gcc.gnu.org/g:574e7601829733d7cae20b5dc7034b876cc76b30
commit r11-7541-g574e7601829733d7cae20b5dc7034b876cc76b30
Author: Patrick Palka
Date:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99365
--- Comment #4 from CVS Commits ---
The master branch has been updated by Patrick Palka :
https://gcc.gnu.org/g:b49d23f3e238c08bdbc5b892b2ed0a57b5f5caf9
commit r11-7540-gb49d23f3e238c08bdbc5b892b2ed0a57b5f5caf9
Author: Patrick Palka
Date:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99422
Bug ID: 99422
Summary: [11 Regression] ICE in extract_constrain_insn building
glibc pthread_create
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Keywords:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93355
--- Comment #9 from David Malcolm ---
Going back to the summary from comment #4:
(a) It happens to successfully explore enough of the graph to find the leak,
but hits complexity limits at a program point
(b) Without -fno-analyzer-feasibility, it
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99363
Jakub Jelinek changed:
What|Removed |Added
Keywords|needs-bisection |
CC|
ab349a cp_parser_qualifying_entity
../../gcc/gcc/cp/parser.c:6994
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
--
g++ (GCC) 11.0.1 20210305 (experimental)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99374
Marek Polacek changed:
What|Removed |Added
Summary|[8/9/10/11 Regression] |[8/9/10 Regression]
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99374
--- Comment #5 from CVS Commits ---
The master branch has been updated by Marek Polacek :
https://gcc.gnu.org/g:02a3554879001e8f1405d17e096ed68fc3f76975
commit r11-7536-g02a3554879001e8f1405d17e096ed68fc3f76975
Author: Marek Polacek
Date:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99120
Marek Polacek changed:
What|Removed |Added
Summary|[8/9/10/11 Regression] ICE |[8/9/10 Regression] ICE in
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99120
--- Comment #2 from CVS Commits ---
The master branch has been updated by Marek Polacek :
https://gcc.gnu.org/g:c2e64c33d9d903f0a52565ad98300feea0ffc580
commit r11-7535-gc2e64c33d9d903f0a52565ad98300feea0ffc580
Author: Marek Polacek
Date:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99363
--- Comment #3 from CVS Commits ---
The master branch has been updated by Jason Merrill :
https://gcc.gnu.org/g:812230c63c3efcf2cb36965fe178420b5f1892a6
commit r11-7534-g812230c63c3efcf2cb36965fe178420b5f1892a6
Author: Jason Merrill
Date:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99285
--- Comment #1 from Nathan Sidwell ---
//bug_a.ii
template struct common_type;
template<> struct common_type<> {};
template struct common_type<_Tp0> {};
template struct common_type<_Tp1, _Tp2> {};
//bug_b.ii
import "bug_a.ii";
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99314
Sinan Lin changed:
What|Removed |Added
Status|ASSIGNED|RESOLVED
Resolution|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99283
--- Comment #2 from Alexander Lelyakin ---
It is(was) reproducible in version:
g++ (GCC) 11.0.1 20210303 (experimental)
Last version I will check tomorrow.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99283
Nathan Sidwell changed:
What|Removed |Added
Ever confirmed|0 |1
Last reconfirmed|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99322
Jakub Jelinek changed:
What|Removed |Added
Status|NEW |RESOLVED
Resolution|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99322
--- Comment #5 from CVS Commits ---
The master branch has been updated by Jakub Jelinek :
https://gcc.gnu.org/g:a3ad6489d38982434faef3bc5f33e3c28c5f7c74
commit r11-7533-ga3ad6489d38982434faef3bc5f33e3c28c5f7c74
Author: Jakub Jelinek
Date:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99227
Bug 99227 depends on bug 99245, which changed state.
Bug 99245 Summary: [modules] ICE in write_cluster, at cp/module.cc:14600
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99245
What|Removed |Added
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99245
Nathan Sidwell changed:
What|Removed |Added
Status|ASSIGNED|RESOLVED
Resolution|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99245
--- Comment #3 from CVS Commits ---
The master branch has been updated by Nathan Sidwell :
https://gcc.gnu.org/g:9e64dd6b3f6706de571c6ed3c4b7a8c8b67f22b7
commit r11-7532-g9e64dd6b3f6706de571c6ed3c4b7a8c8b67f22b7
Author: Nathan Sidwell
Date:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99421
Bug ID: 99421
Summary: ICE:in code_motion_process_successors, at
sel-sched.c:6389 on aarch64
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99420
Bug ID: 99420
Summary: New warning -Warray-parameter
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99402
--- Comment #8 from Kip Warner ---
And for anyone finding this from a search engine, the temporary workaround is
to use std::copy_n.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99218
--- Comment #5 from CVS Commits ---
The master branch has been updated by Harald Anlauf :
https://gcc.gnu.org/g:b1bee29167df6b0fbc9a4c8d06e2acbf3367af47
commit r11-7531-gb1bee29167df6b0fbc9a4c8d06e2acbf3367af47
Author: Harald Anlauf
Date:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99377
Nathan Sidwell changed:
What|Removed |Added
Status|ASSIGNED|RESOLVED
Resolution|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99377
--- Comment #2 from CVS Commits ---
The master branch has been updated by Nathan Sidwell :
https://gcc.gnu.org/g:1e5cdb9f896fb220b26fd2080406504c4badf5af
commit r11-7530-g1e5cdb9f896fb220b26fd2080406504c4badf5af
Author: Nathan Sidwell
Date:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99245
Nathan Sidwell changed:
What|Removed |Added
Last reconfirmed||2021-03-05
Ever confirmed|0
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99410
--- Comment #3 from Giulio Benetti ---
Ah no, wait, that happens with older binutils too, so it doesn't look like the
same and most of all it stop to show with gcc 8.x, so it seems that gcc create
a particular Assembly that GAS doesn't like or
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99402
François Dumont changed:
What|Removed |Added
Assignee|unassigned at gcc dot gnu.org |fdumont at gcc dot
gnu.org
Supported LTO compression algorithms: zlib
gcc version 11.0.1 20210305 (experimental) [master revision
9ee91079fd5:70357716fd6:3d9577c254003f2d18185015b75ce6e3e4af9ca2] (GCC)
[553] %
[553] % gcctk -O3 -S small.c
[554] %
[554] % cat small.c
extern void foo(void);
int a;
static int b[2] = {0,0};
int
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99418
Bug ID: 99418
Summary: sanitizer checks for accessing multidimentional
VLA-array
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97927
Tobias Burnus changed:
What|Removed |Added
Status|WAITING |NEW
--- Comment #14 from Tobias Burnus
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99410
--- Comment #2 from Giulio Benetti ---
You’re right, it’s an assembler bug, not gcc.
And yes it’s the same.
Thank you.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97927
--- Comment #13 from Tobias Burnus ---
Created attachment 50313
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=50313=edit
Reduced testcase - run with 'gfortran file.f90' (seems to require
--enable-checking=yes)
The generated code has:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99410
--- Comment #1 from Andrew Pinski ---
I think this is the same as
https://sourceware.org/bugzilla/show_bug.cgi?id=27243 .
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99321
Jakub Jelinek changed:
What|Removed |Added
Attachment #50311|0 |1
is obsolete|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99227
Bug 99227 depends on bug 99247, which changed state.
Bug 99247 Summary: [modules] ICE in write_macro_maps, at cp/module.cc:16154
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99247
What|Removed |Added
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98718
--- Comment #8 from Nathan Sidwell ---
*** Bug 99247 has been marked as a duplicate of this bug. ***
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99247
Nathan Sidwell changed:
What|Removed |Added
Resolution|--- |DUPLICATE
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99321
--- Comment #6 from Jakub Jelinek ---
Created attachment 50311
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=50311=edit
gcc11-pr99321.patch
One possible way to fix the above testcase (but not the many other insns, like
maybe:
vdbpsadbw
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97461
--- Comment #32 from Sergei Trofimovich ---
(In reply to Martin Liška from comment #28)
> Should be fixed now.
Tested today's gcc against firefox-86 in lto+pgo mode. Built fine. Thank you!
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99321
Jakub Jelinek changed:
What|Removed |Added
CC||hjl.tools at gmail dot com
--- Comment
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99417
Bug ID: 99417
Summary: [C++17] std::variant assignment fails to compile
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99377
--- Comment #1 from Nathan Sidwell ---
// bug_a.ii
template
struct Widget
{
Widget (int) { }
bool First() const { return true; }
bool Second () const { return true;}
};
inline void Frob (const Widget& w) noexcept
{
w.First ();
}
//
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98118
--- Comment #5 from CVS Commits ---
The master branch has been updated by Iain D Sandoe :
https://gcc.gnu.org/g:3d9577c254003f2d18185015b75ce6e3e4af9ca2
commit r11-7529-g3d9577c254003f2d18185015b75ce6e3e4af9ca2
Author: Iain Sandoe
Date: Wed
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95616
--- Comment #4 from CVS Commits ---
The master branch has been updated by Iain D Sandoe :
https://gcc.gnu.org/g:9ee91079fd5879cba046e452ab5593372166b2ab
commit r11-7528-g9ee91079fd5879cba046e452ab5593372166b2ab
Author: Iain Sandoe
Date: Mon
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95615
--- Comment #5 from CVS Commits ---
The master branch has been updated by Iain D Sandoe :
https://gcc.gnu.org/g:fe55086547c9360b530e040a6673dae10ac77847
commit r11-7527-gfe55086547c9360b530e040a6673dae10ac77847
Author: Iain Sandoe
Date: Mon
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99322
Jakub Jelinek changed:
What|Removed |Added
Assignee|unassigned at gcc dot gnu.org |jakub at gcc dot gnu.org
---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98078
--- Comment #6 from Martin Jambor ---
Fixed on master so far (both gcc-10 and gcc-9 branches remain affected).
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93847
--- Comment #3 from Giulio Benetti ---
Hello,
can you point me a way to provide the test cases you need?
Also, now the bug shows using Buildroot but while compiling a toolchain from
scratch, instructions follow:
To reproduce it:
# git clone
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99378
--- Comment #3 from CVS Commits ---
The master branch has been updated by Vladimir Makarov :
https://gcc.gnu.org/g:9105757a59b890194ebf5b4fcbacd58db34ef332
commit r11-7526-g9105757a59b890194ebf5b4fcbacd58db34ef332
Author: Vladimir N. Makarov
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96330
--- Comment #2 from Patrick Palka ---
(In reply to Jakub Jelinek from comment #1)
> Tried
> --- gcc/cp/pt.c.jj2020-07-27 10:38:19.0 +0200
> +++ gcc/cp/pt.c 2020-07-27 17:25:09.748240198 +0200
> @@ -16838,14 +16838,17 @@
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98078
--- Comment #5 from CVS Commits ---
The master branch has been updated by Martin Jambor :
https://gcc.gnu.org/g:b8188b7d7382e4a74af5dd6a125e76e8d43a68a5
commit r11-7525-gb8188b7d7382e4a74af5dd6a125e76e8d43a68a5
Author: Martin Jambor
Date:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99322
--- Comment #3 from Jakub Jelinek ---
void bar (void *);
void
foo (void)
{
bar (&);
#pragma omp parallel
for (;;)
;
lab:;
}
ICEs likely since r0-88143-gb357f682db35f4431e3011e7486a0ac865686e3e
Not really sure what to do if we find
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99416
Bug ID: 99416
Summary: s211 benchmark of TSVC is vectorized by icc and not by
gcc
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99102
--- Comment #4 from Joel Hutton ---
It seems it is vectorizing a 'MASK_STORE' into a 'SCATTER_STORE' when it should
be using a 'MASK_SCATTER_STORE'. Currently it's choosing between
IFN_SCATTER_STORE and IFN_MASK_SCATTER_STORE based on the
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99287
--- Comment #6 from Patrick Palka ---
(In reply to Jakub Jelinek from comment #4)
> (In reply to Patrick Palka from comment #3)
> > IIUC, those two types are actually the same, it's just that one of them was
> > obtained through the char_type
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99413
--- Comment #2 from Nathan Sidwell ---
Correct. We're only picking headers that are either (a) user-facing or (b)
included from more than one place.
Specifically we're partitioning the include graph into a set of multi-reached
sub-graphs.
And
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99287
--- Comment #5 from Jakub Jelinek ---
Or perhaps another option would be instead of
return mod;
do
return cxx_eval_constant_expression (ctx, mod, false, non_constant_p,
overflow_p);
?
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99415
Bug ID: 99415
Summary: s115 benchmark of TSVC is vectorized by icc and not by
gcc
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99413
Jonathan Wakely changed:
What|Removed |Added
Status|UNCONFIRMED |NEW
Last reconfirmed|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99395
--- Comment #3 from Jan Hubicka ---
ICC version seems to run faster
0040a050 :
40a050: 55 push %rbp
40a051: 48 89 e5mov%rsp,%rbp
40a054: 48 83 e4 e0 and
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99414
Bug ID: 99414
Summary: s235 benchmark of TSVC is vectorized better by icc
than gcc (loop interchange)
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99287
--- Comment #4 from Jakub Jelinek ---
(In reply to Patrick Palka from comment #3)
> IIUC, those two types are actually the same, it's just that one of them was
> obtained through the char_type alias, and it seems debug_tree prefers to
> show the
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99287
Patrick Palka changed:
What|Removed |Added
Assignee|unassigned at gcc dot gnu.org |ppalka at gcc dot
gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99413
Bug ID: 99413
Summary: internal library headers are not header-unit ready
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99405
--- Comment #6 from cqwrteur ---
(In reply to Jakub Jelinek from comment #5)
> The valid C code if it is correct without UB and is pattern matched is
> definitely better than some intrinsics, it is portable and can be optimized
> generally
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99411
Jan Hubicka changed:
What|Removed |Added
Summary|s311, s312, s3 and |s311, s312, s3, s3,
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99405
--- Comment #5 from Jakub Jelinek ---
The valid C code if it is correct without UB and is pattern matched is
definitely better than some intrinsics, it is portable and can be optimized
generally sooner and better than the intrinsics.
Just be
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99405
--- Comment #4 from cqwrteur ---
(In reply to Jakub Jelinek from comment #3)
> Created attachment 50307 [details]
> gcc11-pr99405.patch
>
> No particular reason, it just feeled weird to have constraints on pre-reload
> splitters.
>
> Anyway,
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99412
Bug ID: 99412
Summary: s352 benchmark of TSVC is vectorized by clang and not
by gcc
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99322
Jakub Jelinek changed:
What|Removed |Added
CC||jakub at gcc dot gnu.org
--- Comment #2
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99411
Jan Hubicka changed:
What|Removed |Added
Summary|s311, s312, s3 and |s311, s312, s3 and
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99411
Jan Hubicka changed:
What|Removed |Added
Summary|s311, s312 and s3 |s311, s312, s3 and
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99411
Jan Hubicka changed:
What|Removed |Added
Summary|s311 and s3 benchmark |s311, s312 and s3
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99411
Jan Hubicka changed:
What|Removed |Added
Summary|s311 benchmark of TSVC is |s311 and s3 benchmark
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98856
--- Comment #35 from Richard Biener ---
(In reply to Richard Biener from comment #33)
> Created attachment 50308 [details]
> patch
>
> I am testing the following.
It FAILs
FAIL: gcc.target/i386/avx512dq-concatv2di-1.c scan-assembler
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99410
Bug ID: 99410
Summary: Nios II Error: branch offset out of range
Product: gcc
Version: 7.3.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99411
Bug ID: 99411
Summary: s311 benchmark of TSVC is vectorized by clang better
than by gcc
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99122
--- Comment #25 from Martin Jambor ---
I have proposed a patch for the IPA-CP part on the mailing list:
https://gcc.gnu.org/pipermail/gcc-patches/2021-March/566333.html
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99409
Bug ID: 99409
Summary: s252 benchmark of TSVC is vectorized by clang and not
by gcc
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99408
Bug ID: 99408
Summary: s3251 benchmark of TSVC vectorized by clang runs about
7 times faster compared to gcc
Product: gcc
Version: 11.0
Status: UNCONFIRMED
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99407
--- Comment #1 from Jan Hubicka ---
Here we get:
s243.c:27:18: missed: not vectorized, possible dependence between data-refs
a[i_29] and a[_9]
s243.c:26:27: missed: bad data dependence.
s243.c:26:27: note: * Analysis failed with vector
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98092
--- Comment #4 from Jakub Jelinek ---
Any progress on this?
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98810
--- Comment #8 from Marek Polacek ---
It probably needs target c++2a instead.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99407
Bug ID: 99407
Summary: s243 benchmark of TSVC is vectorized by clang and not
by gcc
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99394
--- Comment #3 from Jan Hubicka ---
testcase is:
typedef float real_t;
#define iterations 10
#define LEN_1D 32000
#define LEN_2D 256
// array definitions
real_t flat_2d_array[LEN_2D*LEN_2D];
real_t x[LEN_1D];
real_t
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97927
--- Comment #12 from Tobias Burnus ---
(In reply to Matthias Klose from comment #10)
> seen again with 20210227
I tried it with the attached file and the build.sh but calling gfortran
directly w/o mpif90 wrapper.
That's with
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97927
--- Comment #11 from Matthias Klose ---
20210227 trunk
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99406
--- Comment #4 from Jakub Jelinek ---
Created attachment 50309
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=50309=edit
gcc11-pr99406.patch
Like this.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99406
Martin Liška changed:
What|Removed |Added
Assignee|unassigned at gcc dot gnu.org |marxin at gcc dot
gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99406
Jakub Jelinek changed:
What|Removed |Added
CC||jakub at gcc dot gnu.org
--- Comment #2
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99406
--- Comment #1 from Iain Sandoe ---
(In reply to Rainer Orth from comment #0)
> The unconditional use of MAP_ANONYMOUS in libgcov.h broke Mac OS X
> 10.7/Darwin 11
> bootstrap:
>
> In file included from
>
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