https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97046
--- Comment #5 from Igor Gayday ---
I'd like to add that Gilles Gouaillardet is the author of the reproducer in my
original post.
On Wed, Sep 09, 2020 at 02:42:36PM +0100, Jonathan Wakely wrote:
> Sorry for the slow reply to this.
>
> On Fri, 7 Aug 2020 at 22:14, Michael Meissner wrote:
> >
> > One issue with doing the transition is what mangling should be used with the
> > new long double.
> >
> > At the moment, the
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97055
Bug ID: 97055
Summary: Copy and move constructors shadowed by templatized
constructor
Product: gcc
Version: 10.2.0
Status: UNCONFIRMED
Severity: normal
On Thu, Sep 10, 2020 at 04:58:03PM -0500, Peter Bergner via Gcc-patches wrote:
> +unsigned long
> +test0 (void)
> +{
> + return 0x0000UL;
> +}
> +
> +unsigned long
> +test1 (void)
> +{
> + return 0x0000UL;
> +}
> +
> +unsigned long
> +test2 (void)
> +{
> + return
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97054
H.J. Lu changed:
What|Removed |Added
Status|UNCONFIRMED |NEW
CC|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97054
Bug ID: 97054
Summary: [r10-3559 Regression] Runtime segfault with attached
test code
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
On 2020/9/14 17:47, Richard Biener wrote:
On Mon, Sep 14, 2020 at 10:05 AM luoxhu wrote:
Not sure whether this reflects the issues you discussed above.
I constructed below test cases and tested with and without this patch,
only if "a+c"(which means store only), the performance is getting
>@@ -3426,8 +3426,16 @@ dt_simplify::gen_1 (FILE *f, int indent, bool
>gimple, operand *result)
> /* Re-fold the toplevel result. It's basically an embedded
> gimple_build w/o actually building the stmt. */
> if (!is_predicate)
>- fprintf_indent (f,
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94234
--- Comment #4 from CVS Commits ---
The master branch has been updated by Feng Xue :
https://gcc.gnu.org/g:f9d2def016410a2095df6b399097b482f82064a5
commit r11-3199-gf9d2def016410a2095df6b399097b482f82064a5
Author: Feng Xue
Date: Tue Sep 1
> On Sep 14, 2020, at 6:09 PM, Segher Boessenkool
> wrote:
>
> On Fri, Sep 11, 2020 at 05:41:47PM -0500, Qing Zhao wrote:
>>> On Sep 11, 2020, at 4:51 PM, Segher Boessenkool
>>> wrote:
>>> It is definitely *not* effective if there are gadgets that set rax to
>>> a value the attacker wants
Hi:
This patch would avoid spill gprs to mask registers for non-AVX512
micro-architecture and fix regression in PR96744.
Bootstrap is ok, regression test for i386/x86-64 backend is ok.
No big performance impact on SPEC2017.
gcc/ChangeLog:
PR taregt/96744
*
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97053
Bug ID: 97053
Summary: an O3 codegen bug
Product: gcc
Version: 10.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97035
H.J. Lu changed:
What|Removed |Added
Status|UNCONFIRMED |RESOLVED
Resolution|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97051
--- Comment #2 from Marek Polacek ---
This compiles when __builtin_is_constant_evaluated is used instead.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97051
Marek Polacek changed:
What|Removed |Added
Last reconfirmed||2020-09-15
Keywords|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97052
Marek Polacek changed:
What|Removed |Added
Last reconfirmed||2020-09-15
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97052
Bug ID: 97052
Summary: Internal compiler error with substitution failure in
template parameter list of concept declaration
Product: gcc
Version: 11.0
Status: UNCONFIRMED
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97042
--- Comment #9 from Alan Modra ---
I think that splitter should disappear and rs6000_emit_set_long_const handle
all special cases where you might want combinations of two logical instructions
before handling the li;rldicl, li;rldicr or any other
On Mon, Sep 14, 2020 at 08:39:36PM +, Joseph Myers wrote:
> On Mon, 14 Sep 2020, Marek Polacek via Gcc-patches wrote:
>
> > so I followed suit. In the C++ FE this was rather easy, because
> > finish_parenthesized_expr already set TREE_NO_WARNING. In the C FE
> > it was trickier; I've added
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97051
Bug ID: 97051
Summary: Evaluating is_constant_evaluated in requires clause
fails
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
These functions do behave a little differently for SImode, so the
mode should be passed.
* config/rs6000/rs6000.c (rs6000_rtx_costs): Pass mode to
reg_or_add_cint_operand and reg_or_sub_cint_operand.
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index
The existing "case AND" in this function is not sufficient for
optabs.c:avoid_expensive_constant usage, where the AND is passed in
outer_code.
* config/rs6000/rs6000.c (rs6000_rtx_costs): Move costing for
AND to CONST_INT case.
diff --git a/gcc/config/rs6000/rs6000.c
Prior patches in this series were small bug fixes. This lays out the
ground rules for following patches.
* config/rs6000/rs6000.c (rs6000_rtx_costs): Expand comment.
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index 523d029800a..5b3c0ee0e8c 100644
---
Also use rs6000_cost only for speed.
* config/rs6000/rs6000.c (rs6000_rtx_costs): Reduce cost for SETs
when insn operation cost handled on recursive call. Only use
rs6000_cost for speed. Tidy break/return. Tidy AND costing.
diff --git a/gcc/config/rs6000/rs6000.c
This small patch to rs6000_rtx_const considerably improves code
generated for large constants in 64-bit code, teaching gcc that it is
better to load a constant from memory than to generate a sequence of
up to five dependent instructions. Note that the rs6000 backend does
generate large constants
Implement more two insn constants.
PR 94393
* config/rs6000/rs6000.c (rotate_and_mask_constant): New function.
(num_insns_constant_multi, rs6000_emit_set_long_const): Use it here.
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index
* config/rs6000/rs6000.c (rs6000_rtx_costs): Cost IOR.
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index 8c300b82b11..fb5fe7969a3 100644
--- a/gcc/config/rs6000/rs6000.c
+++ b/gcc/config/rs6000/rs6000.c
@@ -21177,6 +21177,7 @@ static bool
rs6000_rtx_costs (rtx x,
This patch series fixes a number of issues in rs6000_rtx_costs, the
aim being to provide costing somewhat closer to reality. Probably the
most important patch of the series is patch 4, which just adds a
comment. Without the analysis that went into that comment, I found
myself making what seemed
rldimi is generated by rs6000_emit_set_long_const when the high and
low 32 bits of a 64-bit constant are equal.
* config/rs6000/rs6000.c (num_insns_constant_gpr): Count rldimi
constants correctly.
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index
On Mon, Sep 14, 2020 at 11:13:18AM -0400, Jason Merrill via Gcc-patches wrote:
> On Mon, Jun 29, 2020 at 1:25 PM Martin Liška wrote:
> >
> > On 6/29/20 4:57 PM, Marek Polacek wrote:
> > > On Mon, Jun 29, 2020 at 09:51:57AM +0200, Martin Liška wrote:
> > >> On 6/26/20 9:34 PM, Marek Polacek via
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97046
--- Comment #4 from Gilles Gouaillardet
---
I crafted the reproducer based on a previous one that has already been merged,
and using a libc subroutine was not an issue back then.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97042
--- Comment #8 from Segher Boessenkool ---
(In reply to Alan Modra from comment #7)
> and of course, li 0x is li -1 which sets all bits.
Erm, yes. Duh.
So that g:5d3ae76af13 splitter should not fire for numbers that fit in
32 bits but
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97046
--- Comment #3 from Steve Kargl ---
On Mon, Sep 14, 2020 at 11:56:18PM +, gilles.gouaillardet at gmail dot com
wrote:
> This is the libc subroutine
>
> void sync(void);
>
> The point here is any subroutine (that will not cause a crash) can
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96983
--- Comment #26 from Segher Boessenkool ---
What Joseph says in c#25. Also, the documentation currently says
The @code{KIND} value matches the storage size in bytes, [...]
which will have to change, too (the standard does not require this,
it
On Linux/x86_64,
e9fdb9a73249f95f3da2d7fde6f268ae12d0d22c is the first bad commit
commit e9fdb9a73249f95f3da2d7fde6f268ae12d0d22c
Author: Nathan Sidwell
Date: Mon Sep 14 09:42:29 2020 -0700
c++: local externs in templates do not get template head
caused
FAIL: libgomp.c++/udr-3.C
On Linux/x86_64,
e9fdb9a73249f95f3da2d7fde6f268ae12d0d22c is the first bad commit
commit e9fdb9a73249f95f3da2d7fde6f268ae12d0d22c
Author: Nathan Sidwell
Date: Mon Sep 14 09:42:29 2020 -0700
c++: local externs in templates do not get template head
caused
FAIL: libgomp.c++/udr-13.C
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97046
Gilles Gouaillardet changed:
What|Removed |Added
CC||gilles.gouaillardet at gmail
dot
On Mon, Sep 14, 2020 at 05:33:33PM +0100, Richard Sandiford wrote:
> > However, for the cases on Power as Segher mentioned, there are also some
> > scratch registers used for
> > Other purpose, not sure whether we can correctly generate zeroing in
> > middle-end for Power?
>
> Segher would be
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97042
--- Comment #7 from Alan Modra ---
and of course, li 0x is li -1 which sets all bits.
Hi!
On Fri, Sep 11, 2020 at 05:24:58PM -0500, Qing Zhao wrote:
> > So IMO the pass should just search for all the
> > returns in a function and insert the zeroing instructions before
> > each one.
>
> I was considering this approach too for some time, however, there is one
> major issue with
On Fri, Sep 11, 2020 at 05:41:47PM -0500, Qing Zhao wrote:
> > On Sep 11, 2020, at 4:51 PM, Segher Boessenkool
> > wrote:
> > It is definitely *not* effective if there are gadgets that set rax to
> > a value the attacker wants and then do a syscall.
>
> You mean the following gadget:
>
>
>
On Mon, 14 Sep 2020 09:34:08 +0200
Richard Biener wrote:
> On Fri, Sep 11, 2020 at 11:56 PM Sergei Trofimovich via Gcc-patches
> wrote:
> >
> > From: Sergei Trofimovich
> >
> > Before the change option handling did not accept an argument:
> > xgcc: error: unknown profile reproducibility
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96041
Tobias Burnus changed:
What|Removed |Added
CC||burnus at gcc dot gnu.org
--- Comment
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97042
--- Comment #6 from Alan Modra ---
That's easy. rs6000_emit_set_long_const doesn't generate that sequence.
Incidentally, a patch I had to generate more constants from li;rldicl also
fixes this pr.
On 9/14/20 1:03 PM, Jakub Jelinek wrote:
+
+ if (flag_openmp && !(TYPE_QUALS (TREE_TYPE (ptr)) & TYPE_QUAL_RESTRICT))
+always_modifier = true;
I think we don't want to depend on flag_openmp here, ... Guess for now
an openacc flag with (ctx->region_type & ORT_ACC) != 0 passed to it
This patch cause run-time fails for
g++ -fopenmp libgomp/testsuite/libgomp.c++/udr-13.C
The follow-up fix does not help.
Namely, in udr-3.C:115:
115 if (t.s != 11 || v.v != 9 || q != 0 || d != 3.0) abort ();
(gdb) p t.s
$1 = 11
(gdb) p v.v
$2 = 4
(gdb) p q
$3 = 0
(gdb) p d
$4 = 3
On Linux/x86_64,
e9fdb9a73249f95f3da2d7fde6f268ae12d0d22c is the first bad commit
commit e9fdb9a73249f95f3da2d7fde6f268ae12d0d22c
Author: Nathan Sidwell
Date: Mon Sep 14 09:42:29 2020 -0700
c++: local externs in templates do not get template head
caused
FAIL: libgomp.c++/udr-13.C
On Linux/x86_64,
e9fdb9a73249f95f3da2d7fde6f268ae12d0d22c is the first bad commit
commit e9fdb9a73249f95f3da2d7fde6f268ae12d0d22c
Author: Nathan Sidwell
Date: Mon Sep 14 09:42:29 2020 -0700
c++: local externs in templates do not get template head
caused
FAIL: libgomp.c++/udr-3.C
On Mon, Sep 14, 2020 at 08:35:44PM +0100, Richard Sandiford wrote:
> Segher Boessenkool writes:
> >> Although this looks/sounds complicated, the advantage is that everything
> >> remains up-to-date. If we instead added a second attribute and only
> >> defined it for instructions like *add__,
After the previous patch we are left with an unreachable BB. This will
ICE if either we have -fschedule-fusion, or we do not have peephole2.
This fixes it. Okay for trunk?
Segher
2020-09-14 Segher Boessenkool
PR rtl-optimization/96475
* bb-reorder.c
On 9/4/20 11:14 AM, Jason Merrill wrote:
On 9/3/20 2:44 PM, Martin Sebor wrote:
On 9/1/20 1:22 PM, Jason Merrill wrote:
On 8/11/20 12:19 PM, Martin Sebor via Gcc-patches wrote:
-Wplacement-new handles array indices and pointer offsets the same:
by adjusting them by the size of the element.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97049
Martin Sebor changed:
What|Removed |Added
Known to work||11.0, 9.3.0
Ever confirmed|0
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96650
David Malcolm changed:
What|Removed |Added
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed|
> On Sep 14, 2020, at 7:30 AM, Ville Voutilainen via Libstdc++
> wrote:
>
> On Mon, 14 Sep 2020 at 15:49, Glen Fernandes wrote:
>>
>> On Mon, Sep 14, 2020 at 5:52 AM Ville Voutilainen wrote:
>>> On Mon, 14 Sep 2020 at 12:51, Ville Voutilainen
>>> wrote:
On Mon, 14 Sep 2020 at 09:18,
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93608
Ian Lance Taylor changed:
What|Removed |Added
Resolution|--- |FIXED
Status|UNCONFIRMED
This patch to libbacktrace adds support for MiniDebugInfo, as
requested in PR 93608.
MiniDebugInfo stores compressed symbol tables for an executable, where
the executable is otherwise stripped. It is documented at
https://fedoraproject.org/wiki/Features/MiniDebugInfo and
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93608
--- Comment #4 from CVS Commits ---
The master branch has been updated by Ian Lance Taylor :
https://gcc.gnu.org/g:05f40bc4c116ba48843728201bc7290a5e518598
commit r11-3196-g05f40bc4c116ba48843728201bc7290a5e518598
Author: Ian Lance Taylor
On Mon, Sep 14, 2020 at 11:47:52AM +0100, Richard Sandiford wrote:
> Would it be worth changing the optab so that the input and output are
> separate? Having a single operand would be justified if the operation
> was only supposed to touch the selected bytes, but most targets wouldn't
> guarantee
On Mon, Sep 14, 2020 at 11:47:56AM +0200, Richard Biener wrote:
> this should be
>
>u[n % 4] = i;
>
> I guess. Is the % 4 mandated by the vec_insert semantics btw?
Yes:
VEC_INSERT (ARG1, ARG2, ARG3)
Purpose: Returns a copy of vector ARG2 with element ARG3 replaced by
the value of
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96983
--- Comment #25 from joseph at codesourcery dot com ---
On Mon, 14 Sep 2020, anlauf at gcc dot gnu.org wrote:
> Remember that Fortran needs a correspondence between a storage representation
> (in bytes / bits) and the kind type on the language
On Mon, 14 Sep 2020, Marek Polacek via Gcc-patches wrote:
> so I followed suit. In the C++ FE this was rather easy, because
> finish_parenthesized_expr already set TREE_NO_WARNING. In the C FE
> it was trickier; I've added a NOP_EXPR to discern between the non-()
> and () versions.
This sort
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97050
--- Comment #2 from Marek Polacek ---
Reduced:
namespace a {
template constexpr bool f = __is_same_as(d, e);
}
struct g {};
struct h;
template auto operator+(i, j) {
auto k = [](auto l) requires a::f{};
return k;
}
void m() {
struct n {
On 10/09/20 5:19 pm, Jonathan Wakely wrote:
On 09/09/20 22:12 +0200, François Dumont via Libstdc++ wrote:
libstdc++: Add std::advance overload for ostreambuf_iterator
Implement std::advance overload for ostreambuf_iterator using
basic_streambuf
pubseekof.
libstdc++-v3/ChangeLog:
    Â
On Mon, Sep 14, 2020 at 10:05 AM Jakub Jelinek wrote:
>
> On Mon, Sep 14, 2020 at 08:57:18AM -0700, H.J. Lu via Gcc-patches wrote:
> > Something like this for GCC 8 and 9.
>
> Guess my preference would be to do this everywhere and then let's discuss if
The same patch also works on master branch.
On Sun, 13 Sep 2020, Uecker, Martin wrote:
> Hi Joseph,
>
> here is the (unfinished) patch to support
> mixing of labels in C2X.
I think there should be explicit tests for old standard versions
(c11-labels-1.c etc.) that these usages are errors with -pedantic-errors
with the old -std option,
> On Sep 14, 2020, at 2:20 PM, Richard Sandiford
> wrote:
>
> Qing Zhao mailto:qing.z...@oracle.com>> writes:
>>> On Sep 14, 2020, at 11:33 AM, Richard Sandiford
>>> wrote:
>>>
>>> Qing Zhao writes:
> Like I mentioned earlier though, passes that run after
>
On Thu, Sep 10, 2020 at 12:08:44PM +0200, Richard Biener wrote:
> On Wed, Sep 9, 2020 at 6:03 PM Segher Boessenkool
> wrote:
> > There often are problems over function calls (where the compiler cannot
> > usually *see* how something is used).
>
> Yep. The best way would be to use small loads
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97050
Marek Polacek changed:
What|Removed |Added
Last reconfirmed||2020-09-14
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97050
Bug ID: 97050
Summary: ICE with segfault in lambda overload resolution
Product: gcc
Version: og10 (devel/omp/gcc-10)
Status: UNCONFIRMED
Severity: normal
Priority: P3
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96983
--- Comment #24 from anlauf at gcc dot gnu.org ---
I've submitted the patch in comment#19 for review:
https://gcc.gnu.org/pipermail/fortran/2020-September/055079.html
This would also change the affected testcase to include comment#2,
and defer
Dear all,
my fix for PR fortran/96711 adds a testcase that failed on powerpc64-*-*
as well as sparc*-sun-solaris2.11. This is a consequence of the, say,
mess, on x86, where we have real kinds 4,8,10,16, with kind=10 being long
double and kind=16 being represented as float128, while on sparc
Segher Boessenkool writes:
>> Although this looks/sounds complicated, the advantage is that everything
>> remains up-to-date. If we instead added a second attribute and only
>> defined it for instructions like *add__, other instructions
>> (including config/arm instructions) would still have
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97048
Bug 97048 depends on bug 81437, which changed state.
Bug 81437 Summary: missing -Wstringop-overread reading past the end of a string
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81437
What|Removed |Added
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81437
Martin Sebor changed:
What|Removed |Added
Target Milestone|--- |11.0
Blocks|88443
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97048
Bug 97048 depends on bug 82456, which changed state.
Bug 82456 Summary: missing -Wstringop-overread on strcpy reading past the end
of an array
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82456
What|Removed
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82456
Martin Sebor changed:
What|Removed |Added
Known to fail|10.0|10.2.0
Assignee|unassigned at
Qing Zhao writes:
>> On Sep 14, 2020, at 11:33 AM, Richard Sandiford
>> wrote:
>>
>> Qing Zhao writes:
Like I mentioned earlier though, passes that run after
pass_thread_prologue_and_epilogue can use call-clobbered registers that
weren't previously used. For example, on
The BPF ISA doesn't have a no-operation instruction, but in practice
the Linux kernel verifier performs some optimizations that rely on
these instructions to be encoded in a particular way. As it turns
out, we were using the "wrong" instruction in GCC.
This patch makes GCC to generate the
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96475
--- Comment #23 from Dimitar Dimitrov ---
(In reply to Segher Boessenkool from comment #20)
> Could you guys please test the attached patch? Thanks in advance!
Yes, it fixed all new regressions for pru-elf. Thanks.
Hi Richard,
>On 14/09/2020 15:19, Wilco Dijkstra wrote:
>> The --with-cpu/--with-arch configure option processing not only checks valid
>> arguments
>> but also sets TARGET_CPU_DEFAULT with a CPU and extension bitmask. This
>> isn't used
>> however since a --with-cpu is translated into a -mcpu
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96983
--- Comment #23 from anlauf at gcc dot gnu.org ---
(In reply to jos...@codesourcery.com from comment #22)
> Closely related: the LONG_DOUBLE_TYPE_SIZE target macro which assumes
> "size in bits" can uniquely determine the format of long double.
On Mon, Sep 14, 2020 at 12:53:18PM -0400, Nathan Sidwell wrote:
> On 9/14/20 12:49 PM, Marek Polacek wrote:
> > On Mon, Sep 14, 2020 at 12:45:33PM -0400, Nathan Sidwell wrote:
> > > Now we consistently mark local externs with DECL_LOCAL_DECL_P, we can
> > > teach the template machinery not to give
Hi
The tests assume non-PIC for m32 (which means that they fail on default
PIC targets, like Darwin), also on Linux with -fpic, FWIW.
There is also a missing space before the closing '}' on one of the dg-require-
effective-target which means that test fails on machines without avx512f.
Tested
> On Sep 14, 2020, at 11:33 AM, Richard Sandiford
> wrote:
>
> Qing Zhao writes:
>>> Like I mentioned earlier though, passes that run after
>>> pass_thread_prologue_and_epilogue can use call-clobbered registers that
>>> weren't previously used. For example, on x86_64, the function might
Hi!
On Mon, Sep 14, 2020 at 10:55:35AM +0100, Richard Sandiford wrote:
> "Qian, Jianhua" writes:
> > - If we cannot resolve it, the existing CPUs' descriptions need
> > to be changed. This is not what I expected.
> > - If we want to add new attribute to resolve this
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97049
Bug ID: 97049
Summary: Cryptic warning "__builtin_memmove pointer overflow
between offset ... and size ..." with -m32
Product: gcc
Version: 10.2.0
Status: UNCONFIRMED
This patch implements a new warning, -Wsizeof-array-div. It warns about
code like
int arr[10];
sizeof (arr) / sizeof (short);
where we have a division of two sizeof expressions, where the first
argument is an array, and the second sizeof does not equal the size
of the array element. See
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91741
Marek Polacek changed:
What|Removed |Added
Keywords||patch
--- Comment #3 from Marek Polacek
Erick,
I assume that this needs to be done on all the functions since
you mention "cfun".
Gary
From: Erick Ochoa
Sent: Monday, September 14, 2020 12:10 AM
To: Gary Oblock ; gcc@gcc.gnu.org
Subject: Re: Dominance information problem
[EXTERNAL EMAIL NOTICE: This
Patch posted at:
https://gcc.gnu.org/pipermail/gcc-patches/2020-September/553882.html
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96968
--- Comment #4 from Andrea Corallo ---
Patch posted at:
https://gcc.gnu.org/pipermail/gcc-patches/2020-September/553882.html
Hi!
On Mon, Sep 14, 2020 at 05:53:13PM +0800, Kewen.Lin wrote:
> This patch is to extend the existing function find_alignment_op to
> check all defintions of base_reg are AND operations with mask -16B
> to force the alignment. If all are satifised, it passes all AND
> operations and instructions
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97046
kargl at gcc dot gnu.org changed:
What|Removed |Added
CC||kargl at gcc dot gnu.org
---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96983
--- Comment #22 from joseph at codesourcery dot com ---
On Fri, 11 Sep 2020, segher at gcc dot gnu.org wrote:
> > #ifndef RS6000_MODES_H
> > #define RS6000_MODES_H 1
> > #define FLOAT_PRECISION_IFmode 128
> > #define
On Mon, Sep 14, 2020 at 08:57:18AM -0700, H.J. Lu via Gcc-patches wrote:
> Something like this for GCC 8 and 9.
Guess my preference would be to do this everywhere and then let's discuss if
we change the warning into error there or keep it being deprecated.
Though, let's see what others want to
Hi All,
I need to update include/hsa.h to access some newer APIs. The existing
file was created by copying from the user manual, thus side-stepping
licensing issues, but the updated user manual omits some important
details from the APIs I need (mostly the contents of structs and value
of
On 9/14/20 12:49 PM, Marek Polacek wrote:
On Mon, Sep 14, 2020 at 12:45:33PM -0400, Nathan Sidwell wrote:
Now we consistently mark local externs with DECL_LOCAL_DECL_P, we can
teach the template machinery not to give them a TEMPLATE_DECL head,
and the instantiation machinery treat them as the
On Mon, Sep 14, 2020 at 12:45:33PM -0400, Nathan Sidwell wrote:
> Now we consistently mark local externs with DECL_LOCAL_DECL_P, we can
> teach the template machinery not to give them a TEMPLATE_DECL head,
> and the instantiation machinery treat them as the local specialiations
> they are.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96653
David Malcolm changed:
What|Removed |Added
Summary|Compile time and memory hog |-Wanalyzer-too-complex on
Now we consistently mark local externs with DECL_LOCAL_DECL_P, we can
teach the template machinery not to give them a TEMPLATE_DECL head,
and the instantiation machinery treat them as the local specialiations
they are. (openmp UDRs also fall into this category, and are dealt
with similarly.)
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