https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87874
--- Comment #3 from Alexandre Oliva ---
Created attachment 44961
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44961&action=edit
candidate patch
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87891
--- Comment #8 from Douglas Mencken ---
I found that I can add to configure line
AS_FOR_TARGET=as \
AR_FOR_TARGET=ar \
LD_FOR_TARGET=ld \
NM_FOR_TARGET=nm \
RANLIB_FOR_TARGET=ranlib \
LIPO_FOR_TARGET=lipo \
STRIP_FOR_TARGET=strip \
OBJDUMP_FOR_T
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87893
Bug ID: 87893
Summary: ICE in gimplify_expr, at gimplify.c:12557 on
arm-linux-gnueabi
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code,
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87892
Bug ID: 87892
Summary: [9 Regression]: libsanitizer fails to build on CentOS
5.11 (glibc 2.5)
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87891
--- Comment #7 from Douglas Mencken ---
So it’s not enough to just softlink ranlib, which is nothing more than alias to
libtool, and libtool sees it is invoked as ranlib, and fails to work as
"ranlib" when it’s powerpc64-unknown-darwin-ranlib
$
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81878
Alexandre Oliva changed:
What|Removed |Added
Status|RESOLVED|REOPENED
Resolution|FIXED
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87891
Douglas Mencken changed:
What|Removed |Added
Component|c |bootstrap
--- Comment #6 from Douglas
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60497
Eric Gallager changed:
What|Removed |Added
CC||egallager at gcc dot gnu.org
--- Comment
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=38711
Eric Gallager changed:
What|Removed |Added
CC||egallager at gcc dot gnu.org
--- Comment
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53363
Eric Gallager changed:
What|Removed |Added
CC||egallager at gcc dot gnu.org
--- Comment
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87891
--- Comment #5 from Douglas Mencken ---
Then when I do
# header search path is -isystem ./include
ln -s /usr/include/sys ./gcc/include/sys
ln -s /usr/include/machine ./gcc/include/machine
ln -s /usr/include/ppc ./gcc/include/ppc
ln -s /usr/inclu
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87891
--- Comment #4 from Douglas Mencken ---
(In reply to Jonathan Wakely from comment #2)
> Do you have an assembler for the cross-target installed?
The same system’s `as` eats both of ppc and ppc64 assembly. It looks like that
build machinery of GC
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87891
--- Comment #3 from Douglas Mencken ---
When I change
ORIGINAL_AS_FOR_TARGET=""
to
ORIGINAL_AS_FOR_TARGET="as"
inside gcc/as shell script, it succeeds, but not for long
/Volumes/hfsplushd/Development/gcc-toolchain/_build/./gcc/xgcc
-B/Volume
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87891
--- Comment #2 from Jonathan Wakely ---
Do you have an assembler for the cross-target installed?
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87874
Alexandre Oliva changed:
What|Removed |Added
CC||aoliva at gcc dot gnu.org
As
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87891
--- Comment #1 from Douglas Mencken ---
Created attachment 44960
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44960&action=edit
assembly of conftest.c
It really can’t assemble main() { return 0; }
$ /Volumes/hfsplushd/Development/gcc-to
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87891
Bug ID: 87891
Summary: _build/./gcc/as: line 106: exec: ppc64: not found
Product: gcc
Version: 8.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80087
--- Comment #3 from Martin Sebor ---
Most likely because Clang also implements the warning in the front-end and
without the benefit of flow analysis.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87879
Martin Sebor changed:
What|Removed |Added
Keywords||diagnostic
Status|UNCONFIRMED
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80087
--- Comment #2 from Eric Gallager ---
Although, for comparison, clang also only prints the same single
-Wtautological-compare warning that gcc does.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79398
Eric Gallager changed:
What|Removed |Added
CC||jason at gcc dot gnu.org,
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87769
--- Comment #4 from Mateusz Zych ---
Right, the "--with-sysroot=" configuration parameter is the key.
The sysroot directory defines minimal filesystem of a target machine,
in particular it should contain standard C library and Linux kernel header
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83657
Martin Sebor changed:
What|Removed |Added
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87890
Bug ID: 87890
Summary: inconsistency in handling floating built-ins declared
without prototype
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87882
Jonathan Wakely changed:
What|Removed |Added
Keywords||diagnostic
Status|UNCONFIR
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87889
Bug ID: 87889
Summary: [9 Regression] CPU2000 177.mesa failed to build
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tre
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68686
Joseph S. Myers changed:
What|Removed |Added
Status|NEW |RESOLVED
Resolution|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68686
--- Comment #5 from Joseph S. Myers ---
Author: jsm28
Date: Mon Nov 5 23:03:55 2018
New Revision: 265822
URL: https://gcc.gnu.org/viewcvs?rev=265822&root=gcc&view=rev
Log:
Update most of libquadmath/math/ from glibc, automate update (PR
libquad
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87881
--- Comment #1 from Paul Thomas ---
Hi Dominique,
When you have a moment, could you do a bit of diagnosis for me please? I
presume that the ICE is caused by the neglect of a pointer that is sometimes
null but which FC28 passes over. A debug sess
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87886
Jakub Jelinek changed:
What|Removed |Added
Target Milestone|7.4 |---
Summary|[7/8/9 Regression
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87688
Eric Botcazou changed:
What|Removed |Added
Status|NEW |RESOLVED
Resolution|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87886
Jakub Jelinek changed:
What|Removed |Added
Target Milestone|--- |7.4
Summary|ICE in format_hel
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87886
Jakub Jelinek changed:
What|Removed |Added
Status|UNCONFIRMED |NEW
Last reconfirmed|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86850
--- Comment #5 from David Binderman ---
Original problem still exists a couple of months later.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61164
Romain Naour changed:
What|Removed |Added
CC||romain.naour at gmail dot com
--- Comment
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87871
--- Comment #1 from Segher Boessenkool ---
Author: segher
Date: Mon Nov 5 21:18:22 2018
New Revision: 265821
URL: https://gcc.gnu.org/viewcvs?rev=265821&root=gcc&view=rev
Log:
combine: Don't make an intermediate reg for assigning to sfp (PR8787
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87888
Bug ID: 87888
Summary: Behaviour of __builtin_arc_sr differs from its
description in the manual.
Product: gcc
Version: 8.2.0
Status: UNCONFIRMED
Severity: norma
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=18041
--- Comment #10 from Segher Boessenkool ---
If combine tries to split RTL into two instructions, it tries to do that
one way (and one way only). It picked the AND here. It did not work.
You can add some define_split to your target to help comb
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43064
--- Comment #9 from David Malcolm ---
Candidate patch:
https://gcc.gnu.org/ml/gcc-patches/2018-11/msg00304.html
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43486
David Malcolm changed:
What|Removed |Added
Status|NEW |ASSIGNED
Assignee|unassigned a
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87504
David Malcolm changed:
What|Removed |Added
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87583
--- Comment #3 from Segher Boessenkool ---
It's the same problem as many other PRs. You are using -mcpu=power8 (it is
the default for powerpc64le), but disabling some 2.04 insns (power5+).
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87887
Bug ID: 87887
Summary: ICE in make_ssa_name_fn, at tree-ssanames.c:269
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87886
Bug ID: 87886
Summary: ICE in format_helper, at real.h:227
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Ass
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56496
--- Comment #4 from G. Steinmetz ---
Slightly modified :
$ cat z1.f90
program p
class(*), allocatable :: a[:]
allocate (integer :: a[*])
select type (a)
type is (integer)
a = a(1)
end select
end
$ gfortran-9-20181104 -c
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87879
--- Comment #1 from joseph at codesourcery dot com ---
You'd need dataflow information that's not available at that point in the
front end to know that the initializer is indeed the value of fmt at that
point in the code.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69471
--- Comment #6 from Thiago Macieira ---
Clang is not affected:
$ clang -dM -E -xc /dev/null -march=sandybridge -march=native | grep AVX
#define __AVX2__ 1
#define __AVX__ 1
$ clang -dM -E -xc /dev/null -march=native -march=sandybridge | grep AV
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69471
Thiago Macieira changed:
What|Removed |Added
CC||thiago at kde dot org
--- Comment #5 f
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87885
Bug ID: 87885
Summary: ICE in release_ssa_name_fn with -fprofile-report
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86574
ensadc at mailnesia dot com changed:
What|Removed |Added
CC||ensadc at mailnesia dot com
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87813
--- Comment #10 from Aldy Hernandez ---
On 11/5/18 11:06 AM, msebor at gcc dot gnu.org wrote:
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87813
>
> --- Comment #9 from Martin Sebor ---
> (In reply to Aldy Hernandez from comment #6)
>
> I ag
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87814
Marek Polacek changed:
What|Removed |Added
Keywords||ice-on-valid-code
Status|UNC
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87469
Marek Polacek changed:
What|Removed |Added
Status|NEW |RESOLVED
CC|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86572
--- Comment #5 from Andreas Schwab ---
This breaks aarch64 -mabi=ilp32.
/opt/gcc/gcc-20181105/gcc/testsuite/gcc.dg/warn-strlen-no-nul.c:56:1: error:
type mismatch in binary expression
int
int
sizetype
_1 = i1 + 1;
/opt/gcc/gcc-20181105/gcc
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87884
Bug ID: 87884
Summary: ubsan causes wrong -Wformat-overflow warning
Product: gcc
Version: 8.2.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: sani
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87813
--- Comment #9 from Martin Sebor ---
(In reply to Aldy Hernandez from comment #6)
I agree, but it's just a small subset of such cases. There are many optimizing
transformations that GCC does at -O0 that affect the IL later on: calls to
library
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87869
--- Comment #4 from Nick Bowler ---
(In reply to Richard Biener from comment #3)
> I think a better target for optimizing would be the RTL side,
[...]
> I'm sure arc can store to a register address as well.
Yes, if the shortest possible store en
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87813
--- Comment #8 from Jeffrey A. Law ---
Aldy -- fixing that is a TODO for stage3.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87883
Bug ID: 87883
Summary: [ARM] ICE: Segmentation fault in arm_regno_class
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: ta
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87873
--- Comment #7 from Richard Biener ---
Author: rguenth
Date: Mon Nov 5 14:55:53 2018
New Revision: 265812
URL: https://gcc.gnu.org/viewcvs?rev=265812&root=gcc&view=rev
Log:
2018-11-05 Richard Biener
PR tree-optimization/87873
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87873
Richard Biener changed:
What|Removed |Added
Status|ASSIGNED|RESOLVED
Resolution|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87688
--- Comment #5 from simon at pushface dot org ---
Bug no longer present in gcc version 9.0.0 20181103 (experimental) (GCC).
r265766.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87880
--- Comment #5 from Iain Sandoe ---
(In reply to r...@cebitec.uni-bielefeld.de from comment #4)
> > --- Comment #3 from Dominique d'Humieres ---
> >> Weird: can you check where the definition of
> >> ___cxa_rethrow_primary_exception is coming fr
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85669
--- Comment #71 from Iain Sandoe ---
(In reply to Iain Sandoe from comment #70)
>
> powerpc64 darwin is *much* less tested than the 32b variant.
>
> I don't have any access to my ppc64 machine for the next week but... it
> looks like our gcc e
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=18041
Richard Biener changed:
What|Removed |Added
CC||segher at gcc dot gnu.org
--- Comment #
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87882
Bug ID: 87882
Summary: -Wredundant-move false positive
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assig
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87859
--- Comment #9 from Jakub Jelinek ---
Author: jakub
Date: Mon Nov 5 14:12:15 2018
New Revision: 265807
URL: https://gcc.gnu.org/viewcvs?rev=265807&root=gcc&view=rev
Log:
PR tree-optimization/87859
* gimple-ssa-store-merging.c (s
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87837
--- Comment #10 from Jakub Jelinek ---
Author: jakub
Date: Mon Nov 5 14:11:32 2018
New Revision: 265806
URL: https://gcc.gnu.org/viewcvs?rev=265806&root=gcc&view=rev
Log:
PR sanitizer/87837
* match.pd (X + Y < X): Don't optimize
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87725
--- Comment #3 from Jakub Jelinek ---
Author: jakub
Date: Mon Nov 5 14:10:16 2018
New Revision: 265805
URL: https://gcc.gnu.org/viewcvs?rev=265805&root=gcc&view=rev
Log:
Backported from mainline
2018-10-25 Jakub Jelinek
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86288
--- Comment #7 from Jakub Jelinek ---
Author: jakub
Date: Mon Nov 5 14:09:10 2018
New Revision: 265803
URL: https://gcc.gnu.org/viewcvs?rev=265803&root=gcc&view=rev
Log:
Backported from mainline
2018-10-24 Jakub Jelinek
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87647
--- Comment #6 from Jakub Jelinek ---
Author: jakub
Date: Mon Nov 5 14:08:30 2018
New Revision: 265802
URL: https://gcc.gnu.org/viewcvs?rev=265802&root=gcc&view=rev
Log:
Backported from mainline
2018-10-20 Jakub Jelinek
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85488
--- Comment #3 from Jakub Jelinek ---
Author: jakub
Date: Mon Nov 5 14:07:47 2018
New Revision: 265801
URL: https://gcc.gnu.org/viewcvs?rev=265801&root=gcc&view=rev
Log:
Backported from mainline
2018-10-19 Jakub Jelinek
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87649
--- Comment #5 from Jakub Jelinek ---
Author: jakub
Date: Mon Nov 5 14:07:47 2018
New Revision: 265801
URL: https://gcc.gnu.org/viewcvs?rev=265801&root=gcc&view=rev
Log:
Backported from mainline
2018-10-19 Jakub Jelinek
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=18041
--- Comment #8 from Richard Biener ---
We're still "stuck" on GIMPLE, on x86_64 we manage to elide the redundant load
now and get
foo:
.LFB0:
.cfi_startproc
movzbl (%rdi), %eax
movl%eax, %edx
shrb%dl
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85669
--- Comment #70 from Iain Sandoe ---
(In reply to Douglas Mencken from comment #69)
> (In reply to Iain Sandoe from comment #64)
> > so all languages, m32/m64, --enable-checking=all,rtl,tree trunk bootstrap
> > completed without error (with the p
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87860
Martin Liška changed:
What|Removed |Added
Status|ASSIGNED|RESOLVED
Resolution|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87860
--- Comment #3 from Martin Liška ---
Author: marxin
Date: Mon Nov 5 13:34:36 2018
New Revision: 265796
URL: https://gcc.gnu.org/viewcvs?rev=265796&root=gcc&view=rev
Log:
Fix build on sparc64-linux-gnu.
2018-11-05 Martin Liska
PR sa
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87859
--- Comment #8 from Martin Liška ---
> Now that I think about it, I think I could fix this differently by adding a
> flag to the store structures that it has been merged already, but I'll
> postpone that to next week, need to work on stage1 stuff
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87859
--- Comment #7 from Jakub Jelinek ---
I didn't have access to the preprocessed source and was lazy to prepare it
myself, so I just copied the corresponding structure definition without C++
ctors/dtors, figured out what I thought would be a bitset
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87859
--- Comment #6 from Martin Liška ---
(In reply to Jakub Jelinek from comment #5)
> It got reported in http://bugzilla.redhat.com/1645400
Good, thus you nicely reduced the original source files!
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87859
--- Comment #5 from Jakub Jelinek ---
It got reported in http://bugzilla.redhat.com/1645400
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87859
Martin Liška changed:
What|Removed |Added
CC||marxin at gcc dot gnu.org
--- Comment #4
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87860
--- Comment #2 from Martin Liška ---
Fixed in libsanitizer mainline in:
https://reviews.llvm.org/rCRT346129
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85669
--- Comment #69 from Douglas Mencken ---
(In reply to Iain Sandoe from comment #64)
> so all languages, m32/m64, --enable-checking=all,rtl,tree trunk bootstrap
> completed without error (with the patch above + one to enable Ada to work on
> Darwi
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87873
--- Comment #5 from Richard Biener ---
So the vectorizer issue is highlighted by the following assert. It triggers
because scalar and if-converted loop do not have a 1:1 match in the number of
loop-closed PHIs. And that happens because split_lo
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79191
--- Comment #5 from Marc Glisse ---
(In reply to Eric Gallager from comment #4)
> Where exactly in the compiler is this optimization supposed to be done and
Eric, that's part of the problem. The optimization already exists in VRP, but
it is defe
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87875
--- Comment #9 from Martin Liška ---
(In reply to Jakub Jelinek from comment #7)
> Not also sure what happens if the executable and libraries don't need
> executable stack and you later dlopen some shared library that needs it
> (e.g. uses nested
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87875
Martin Liška changed:
What|Removed |Added
Attachment #44956|0 |1
is obsolete|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82857
--- Comment #4 from Tom de Vries ---
Created attachment 44957
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44957&action=edit
WIP patch, follows .gnu_debugaltlink
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87788
--- Comment #16 from MCCCS ---
Hi, could you please change the component from "bootstrap"
to "d" ? The same error occurs during non-bootstrap
compiling too. Otherwise this is in the wrong category,
people might not see this and send duplicates.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86487
Navya changed:
What|Removed |Added
CC||navyadeepika.garakapati@gma
|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87875
--- Comment #7 from Jakub Jelinek ---
Not also sure what happens if the executable and libraries don't need
executable stack and you later dlopen some shared library that needs it (e.g.
uses nested functions). Don't remember if ld.so mprotects t
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87875
--- Comment #6 from Martin Liška ---
(In reply to Jakub Jelinek from comment #5)
> (In reply to Martin Liška from comment #4)
> > Created attachment 44956 [details]
> > Patch candidate
> >
> > @Jakub: What do you think about the suggested patch?
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87875
--- Comment #5 from Jakub Jelinek ---
(In reply to Martin Liška from comment #4)
> Created attachment 44956 [details]
> Patch candidate
>
> @Jakub: What do you think about the suggested patch? May I attempt to
> mainline it?
No, see above, that
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87875
--- Comment #3 from Jakub Jelinek ---
Note, it needs it executable only if the kernel would create an executable
stack normally (i.e. check PT_GNU_STACK segment headers or all libraries and
executable, or check if the real stack is executable or
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87875
--- Comment #3 from Jakub Jelinek ---
Note, it needs it executable only if the kernel would create an executable
stack normally (i.e. check PT_GNU_STACK segment headers or all libraries and
executable, or check if the real stack is executable or
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87875
--- Comment #2 from Martin Liška ---
So I can confirm it's caused by nested functions, more precisely by nested
function trampolines as documented here:
https://gcc.gnu.org/onlinedocs/gccint/Trampolines.html
```
GCC has traditionally supported n
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87706
--- Comment #3 from Martin Liška ---
(In reply to Jan Hubicka from comment #2)
> cow is already dead at profile time (if it would not, we would end up using
> the counter). It seems to me that one remove unreachable code pass is
> missing.
> We u
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87868
--- Comment #3 from Martin Liška ---
You attached the patch to bad PR.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87859
--- Comment #3 from Jakub Jelinek ---
Author: jakub
Date: Mon Nov 5 10:28:19 2018
New Revision: 265794
URL: https://gcc.gnu.org/viewcvs?rev=265794&root=gcc&view=rev
Log:
PR tree-optimization/87859
* gimple-ssa-store-merging.c (s
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