https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100017
--- Comment #79 from Jonathan Wakely ---
I'm doing that now.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103966
Bug ID: 103966
Summary: std::atomic relaxed load, inc, store sub-optimal
codegen
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Prio
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103966
--- Comment #1 from Witold Baryluk ---
Current codegen on gcc 12 on 64-bit x86:
inc_a():
inc QWORD PTR x[rip]
ret
inc_b_non_atomic():
mov rax, QWORD PTR y[rip]
inc rax
mov QWORD PTR y[rip]
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103966
--- Comment #2 from Witold Baryluk ---
Similarly, dec, add, sub, are affected, as well mul.
Example:
#include
#include
uint64_t x;
void add_a() {
x += 5;
}
std::atomic y;
void add_b_non_atomic() {
y.store(y.load(std::memory_order_
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103964
Jakub Jelinek changed:
What|Removed |Added
CC||amorenoz at redhat dot com
--- Comment
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103465
--- Comment #30 from CVS Commits ---
The releases/gcc-11 branch has been updated by Eric Botcazou
:
https://gcc.gnu.org/g:27e6c84c1f14a8195a3f9fb489c240ecc7a6257d
commit r11-9447-g27e6c84c1f14a8195a3f9fb489c240ecc7a6257d
Author: Eric Botcazou
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103465
--- Comment #31 from CVS Commits ---
The releases/gcc-10 branch has been updated by Eric Botcazou
:
https://gcc.gnu.org/g:331733c384ed74539b38e5fa933b35818a109f5c
commit r10-10388-g331733c384ed74539b38e5fa933b35818a109f5c
Author: Eric Botcazou
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103465
--- Comment #32 from CVS Commits ---
The releases/gcc-9 branch has been updated by Eric Botcazou
:
https://gcc.gnu.org/g:90e463661d81f85a2365b89bea2b0cc6070ae024
commit r9-9905-g90e463661d81f85a2365b89bea2b0cc6070ae024
Author: Eric Botcazou
D
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103465
Eric Botcazou changed:
What|Removed |Added
Status|REOPENED|RESOLVED
Target Milestone|12.0
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103966
Jakub Jelinek changed:
What|Removed |Added
CC||jakub at gcc dot gnu.org
--- Comment #3
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103967
Bug ID: 103967
Summary: x86-64: bitfields make inefficient indexing for array
with 16 byte+ objects
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: no
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102024
--- Comment #17 from CVS Commits ---
The master branch has been updated by Jakub Jelinek :
https://gcc.gnu.org/g:3159da6c46568a7c600f78fb3a3b76e2ea4bf4cc
commit r12-6418-g3159da6c46568a7c600f78fb3a3b76e2ea4bf4cc
Author: Jakub Jelinek
Date:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103366
--- Comment #8 from CVS Commits ---
The master branch has been updated by Paul Thomas :
https://gcc.gnu.org/g:828474fafd2ed33430172fe227f9da7d6fb98723
commit r12-6419-g828474fafd2ed33430172fe227f9da7d6fb98723
Author: Paul Thomas
Date: Mon J
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103948
--- Comment #7 from Uroš Bizjak ---
(In reply to Uroš Bizjak from comment #6)
> I'll try your proposed patch from Comment #5 later today and report here.
Yes, the patch works for me.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93848
--- Comment #13 from Martin Sebor ---
The patch submitted (but not approved) for GCC 11:
https://gcc.gnu.org/pipermail/gcc-patches/2020-November/558775.html
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103945
Martin Sebor changed:
What|Removed |Added
CC||msebor at gcc dot gnu.org
--- Comment #4
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103945
--- Comment #5 from Martin Sebor ---
(The patch review was never finished.)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93848
--- Comment #14 from Martin Sebor ---
Created attachment 52156
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52156&action=edit
Updated patch.
The attached patch is an updated version that fixes a few ICEs. It's not in
the archives becaus
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103944
--- Comment #7 from Iain Buclaw ---
(In reply to Iain Buclaw from comment #6)
> (In reply to Jakub Jelinek from comment #4)
> > Note, it isn't just i686-linux, I was getting the hangs on x86_64-linux,
> > s390x-linux or armv7hl-linux-gnueabi too
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103866
--- Comment #14 from Nicolas Noble ---
Thank you, I'll check it out.
On Mon, Jan 10, 2022, 04:24 redi at gcc dot gnu.org <
gcc-bugzi...@gcc.gnu.org> wrote:
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103866
>
> Jonathan Wakely changed:
>
>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100017
--- Comment #80 from CVS Commits ---
The releases/gcc-11 branch has been updated by Jonathan Wakely
:
https://gcc.gnu.org/g:01a70ccd723eb9a479186fe37c972b0d0f8676cf
commit r11-9448-g01a70ccd723eb9a479186fe37c972b0d0f8676cf
Author: Jonathan Wak
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100017
Jonathan Wakely changed:
What|Removed |Added
Resolution|--- |FIXED
Status|ASSIGNED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: aliaume.morel at baracoda dot com
Target Milestone: ---
The following compiles with clang, GCC 10.3, but gives an ICE on GCC 11.1 and
12.0.0 (20220110
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103968
Marek Polacek changed:
What|Removed |Added
CC||mpolacek at gcc dot gnu.org
K
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103948
--- Comment #8 from CVS Commits ---
The master branch has been updated by Uros Bizjak :
https://gcc.gnu.org/g:de0faa56a10406b50fba159957e3a3fd2f95c64b
commit r12-6422-gde0faa56a10406b50fba159957e3a3fd2f95c64b
Author: Uros Bizjak
Date: Mon J
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103948
Uroš Bizjak changed:
What|Removed |Added
Target Milestone|--- |12.0
Status|UNCONFIRMED
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53947
Bug 53947 depends on bug 103948, which changed state.
Bug 103948 Summary: Vectorizer does not use vec_cmpMN without vcondMN pattern
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103948
What|Removed |Added
---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88670
Bug 88670 depends on bug 103948, which changed state.
Bug 103948 Summary: Vectorizer does not use vec_cmpMN without vcondMN pattern
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103948
What|Removed |Added
---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103912
--- Comment #5 from CVS Commits ---
The master branch has been updated by Jakub Jelinek :
https://gcc.gnu.org/g:54fa7daefe35cacf4a933947d1802318da193c01
commit r12-6423-g54fa7daefe35cacf4a933947d1802318da193c01
Author: Jakub Jelinek
Date: M
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103969
Bug ID: 103969
Summary: 'auto' parameter not permitted in this context
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103783
--- Comment #5 from CVS Commits ---
The master branch has been updated by Patrick Palka :
https://gcc.gnu.org/g:3e95a974c39e922d19bf7ac1246730c516ae01f2
commit r12-6424-g3e95a974c39e922d19bf7ac1246730c516ae01f2
Author: Patrick Palka
Date: M
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103879
--- Comment #11 from CVS Commits ---
The master branch has been updated by Patrick Palka :
https://gcc.gnu.org/g:ab36b554bd90e8db279d13b133369118814f13fb
commit r12-6425-gab36b554bd90e8db279d13b133369118814f13fb
Author: Patrick Palka
Date:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103861
--- Comment #10 from CVS Commits ---
The master branch has been updated by Uros Bizjak :
https://gcc.gnu.org/g:04a745556021b7a1c6e81a41d0a12b60a4d9475d
commit r12-6426-g04a745556021b7a1c6e81a41d0a12b60a4d9475d
Author: Uros Bizjak
Date: Mon
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103879
Patrick Palka changed:
What|Removed |Added
Status|ASSIGNED|RESOLVED
Resolution|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103970
Bug ID: 103970
Summary: Multi-image co_broadcast of derived type with
allocatable components fails
Product: gcc
Version: 11.2.0
Status: UNCONFIRMED
Severity: n
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99674
--- Comment #2 from David Binderman ---
(In reply to David Binderman from comment #1)
> Interestingly, there are about 125 cases of this in the gcc source code,
> so this warning would be of immediate use for gcc itself.
Now up to 161 cases.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103966
Andrew Pinski changed:
What|Removed |Added
Status|UNCONFIRMED |RESOLVED
Resolution|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80817
Andrew Pinski changed:
What|Removed |Added
CC||witold.baryluk+gcc at gmail
dot co
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=47867
John David Anglin changed:
What|Removed |Added
Status|NEW |RESOLVED
Resolution|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103971
Bug ID: 103971
Summary: [12 regression] build fails after r12-6420, ICE at
libgfortran/generated/matmul_i1.c:2450
Product: gcc
Version: 12.0
Status: UNCONFIRMED
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103821
--- Comment #3 from Andrew Macleod ---
Interesting. This isn't caused by jump threading, just exposed by it.
We end up unrolling this loop, and the pattern of code creates a set of
cascading multiplies for which we can precisely evaluate them
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103726
--- Comment #9 from Jonathan Wakely ---
Ah it was left out of libstdc++'s freestanding builds intentionally:
> When the final header is added it will need to be in
> libsupc++ so that it's included for freestanding builds (and at that
> point
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103783
--- Comment #6 from CVS Commits ---
The releases/gcc-11 branch has been updated by Patrick Palka
:
https://gcc.gnu.org/g:1e4a9f22ac21da012fc93198a22e30b70e8fdf84
commit r11-9450-g1e4a9f22ac21da012fc93198a22e30b70e8fdf84
Author: Patrick Palka
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103783
Patrick Palka changed:
What|Removed |Added
Resolution|--- |FIXED
Target Milestone|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67491
Bug 67491 depends on bug 103783, which changed state.
Bug 103783 Summary: Ambiguous overload between constrained static member and
unconstrained non-static member
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103783
What|Removed
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100536
Karine EM changed:
What|Removed |Added
CC||k.even-mendoza at imperial dot
ac.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103945
Eric Gallager changed:
What|Removed |Added
Resolution|--- |DUPLICATE
CC|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81453
Eric Gallager changed:
What|Removed |Added
CC||dcb314 at hotmail dot com
--- Comment #3
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87403
Bug 87403 depends on bug 103945, which changed state.
Bug 103945 Summary: No warning for ordered comparison of function pointers ?
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103945
What|Removed |Added
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103972
Bug ID: 103972
Summary: Building Go Frontend Failure on FreeBSD Powerpc64
Product: gcc
Version: og11 (devel/omp/gcc-11)
Status: UNCONFIRMED
Severity: normal
Priority: P3
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81453
Martin Sebor changed:
What|Removed |Added
Keywords||patch
--- Comment #4 from Martin Sebor -
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103972
--- Comment #1 from Andrew Pinski ---
go/runtime/os_freebsd.go should have been used
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103971
Andrew Pinski changed:
What|Removed |Added
Target Milestone|--- |12.0
Component|bootstrap
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100536
--- Comment #6 from Andrew Pinski ---
(In reply to Karine EM from comment #5)
> With GCC-11 and GCC-10, the compiler does not crash but returns: "confused
> by earlier errors, bailing out" and ends gracefully.
That is actually still a crash :)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103961
Andrew Pinski changed:
What|Removed |Added
Keywords|needs-reduction |
--- Comment #9 from Andrew Pinski ---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103961
Andrew Pinski changed:
What|Removed |Added
Keywords||diagnostic
--- Comment #10 from Andrew
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103961
Andrew Pinski changed:
What|Removed |Added
Severity|normal |blocker
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53652
--- Comment #8 from CVS Commits ---
The master branch has been updated by hongtao Liu :
https://gcc.gnu.org/g:4bb79e27c02c5cd57d5781bef20e70982d898c40
commit r12-6428-g4bb79e27c02c5cd57d5781bef20e70982d898c40
Author: Haochen Jiang
Date: Thu
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53652
--- Comment #9 from Hongtao.liu ---
Fixed in GCC12.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53652
Andrew Pinski changed:
What|Removed |Added
Status|NEW |RESOLVED
Resolution|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103969
Andrew Pinski changed:
What|Removed |Added
Keywords|rejects-valid |
Summary|'auto' parameter no
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103969
Andrew Pinski changed:
What|Removed |Added
Status|UNCONFIRMED |RESOLVED
Resolution|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101884
Andrew Pinski changed:
What|Removed |Added
CC||egor.pugin at gmail dot com
--- Comment
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54367
Bug 54367 depends on bug 103969, which changed state.
Bug 103969 Summary: generic lambda is rejected as a template argument default
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103969
What|Removed |Added
---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103969
--- Comment #3 from Andrew Pinski ---
actually dup of bug 88313.
*** This bug has been marked as a duplicate of bug 88313 ***
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88313
Andrew Pinski changed:
What|Removed |Added
CC||egor.pugin at gmail dot com
--- Comment
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101884
Andrew Pinski changed:
What|Removed |Added
Resolution|--- |DUPLICATE
Status|UNCONFIRME
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88313
Andrew Pinski changed:
What|Removed |Added
CC||johelegp at gmail dot com
--- Comment #2
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103967
--- Comment #1 from Andrew Pinski ---
There are two issues, the first issue deals with array accesses not always
being lowered at the gimple level and the second issue is bitfield accesses are
not being lowered either.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103967
Andrew Pinski changed:
What|Removed |Added
Status|UNCONFIRMED |NEW
Last reconfirmed|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103964
Andrew Pinski changed:
What|Removed |Added
Target Milestone|--- |9.5
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78855
Andrew Pinski changed:
What|Removed |Added
Status|WAITING |RESOLVED
Resolution|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103973
Bug ID: 103973
Summary: x86: 4-way comparison of floats/doubles with spaceship
operator possibly suboptimal
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Seve
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103974
Bug ID: 103974
Summary: [12 Regression] ICE in ira_flattening building
libstdc++ with r12-6415-g01f3e6a40e72
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Key
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70425
Andrew Pinski changed:
What|Removed |Added
Status|UNCONFIRMED |NEW
Ever confirmed|0
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103974
--- Comment #1 from Hans-Peter Nilsson ---
Created attachment 52157
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52157&action=edit
gzipped preprocessed (>1 MB) floating_to_chars.ii
Reproduce using the ungzipped file for example like so:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103974
--- Comment #2 from Hans-Peter Nilsson ---
Created attachment 52158
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52158&action=edit
brief gdb inspection session
I had to "rm *ira*.o" and "make all-gcc CXXFLAGS=-g3" and re-start the gdb
s
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103726
--- Comment #10 from cqwrteur ---
(In reply to Jonathan Wakely from comment #9)
> Ah it was left out of libstdc++'s freestanding builds intentionally:
>
> > When the final header is added it will need to be in
> > libsupc++ so that it's includ
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103974
Andrew Pinski changed:
What|Removed |Added
Target Milestone|--- |12.0
CC|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103974
Andrew Pinski changed:
What|Removed |Added
Ever confirmed|0 |1
Status|UNCONFIRMED
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103973
Hongtao.liu changed:
What|Removed |Added
CC||crazylht at gmail dot com
--- Comment #1
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103973
--- Comment #2 from Hongtao.liu ---
W/ -ffast-math only one COMISD is used.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103973
--- Comment #3 from Andrew Pinski ---
With -O2 -fno-trapping-math, we get:
ucomisd %xmm1, %xmm0
jp .L9
movl$0, %eax
jne .L9
ret
.p2align 4,,10
.p2align 3
.L9:
ucomisd %
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103973
--- Comment #4 from Ivan ---
So there is nothing to improve here? That's good to know, I suppose it can be
closed then.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103974
--- Comment #4 from Andrew Pinski ---
Created attachment 52159
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52159&action=edit
reduced testcase as much as I could get it
Just needs -O2. It is both a C or C++ testcase even.
I can't reduce
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103974
--- Comment #5 from Andrew Pinski ---
This the steps I needed to reproduce this bug;
mkdir objdir-cris
cd objdir-cris
../configure --target=cris-elf
make -j24 all-gcc
cd gcc
wget https://gcc.gnu.org/bugzilla/attachment.cgi?id=52159
mv attach* t.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103975
Bug ID: 103975
Summary: DWARF .debug_frame incorrect for ISRs on AVR; pushing
SREG creates off-by-one error
Product: gcc
Version: 7.3.0
Status: UNCONFIRMED
Sev
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103975
--- Comment #1 from Aaron Kimball ---
Created attachment 52160
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52160&action=edit
isr.i that generates incorrect .debug_frame info
Attaching isr.i test case file
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