On Wed, Sep 16, 2020 at 10:24 PM Jeff Law via Gcc-patches
wrote:
>
>
> On 9/16/20 11:52 AM, Joseph Myers wrote:
> > On Wed, 16 Sep 2020, Jeff Law via Gcc-patches wrote:
> >
> >> ISTM this is a lot like the problem we have where we inline functions
> >> with static data. To fix those we use STB_G
It looks good to me. Approved.
Thanks,
Cooper
On 9/16/20 7:47 PM, Jojo R wrote:
gcc/ChangeLog:
* config/csky/csky.opt (msim): New.
* doc/invoke.texi (C-SKY Options): Document -msim.
* config/csky/csky-elf.h (LIB_SPEC): Add simulator runtime.
---
gcc/config/csky/cs
Alex Coplan writes:
> Hi Richard,
>
> On 10/09/2020 19:18, Richard Sandiford wrote:
>> Alex Coplan writes:
>> > Hello,
>> >
>> > Since r11-2903-g6b3034eaba83935d9f6dfb20d2efbdb34b5b00bf introduced a
>> > canonicalization from mult to shift on address reloads, a missing
>> > pattern in the AArch64
On Thu, 17 Sep 2020 at 06:16, Jeff Law wrote:
>
>
> On 9/11/20 6:21 AM, Christophe Lyon via Gcc-patches wrote:
> > pz_tmp_base and pz_tmp_dot are always set, but used only when
> > _PC_NAME_MAX is defined.
> >
> > This patch moves their declaration and definition undef #ifdef
> > _PC_NAME_MAX to a
contrib/ChangeLog:
PR other/97076
* clang-format: Update.
---
contrib/clang-format | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/contrib/clang-format b/contrib/clang-format
index 7a4e96f64ca..ceb5c1d524f 100644
--- a/contrib/clang-format
+++ b/contrib/clang-fo
Wei Wentao writes:
> Hi,
>
>This patch modify an unused variable in aarch64-unwing.h because the
> warning says "unused parameter 'fs'".
Thanks, pushed. I also broke the line after the parameter, to keep
things within the 80-character limit.
RichardR
>
> Weiwt
> regards!
>
> ---
> libgcc
On Wed, 16 Sep 2020 at 15:40, Andrea Corallo wrote:
>
> Richard Sandiford writes:
>
> > OK with two incredibly petty comments fixed:
>
> [...]
>
> Installed with the two suggestions as 052204fac58.
>
Hi,
There is a typo with clastb_8.c:
gcc.target/aarch64/sve/clastb_8.c -march=armv8.2-a+sve: er
> -Original Message-
> From: Christophe Lyon
> Sent: 11 September 2020 20:05
> To: Kyrylo Tkachov
> Cc: i...@airs.com; gcc-patches@gcc.gnu.org
> Subject: Re: [PATCH] libgcc/config/arm/fp16.c: Add missing prototypes
>
> On Fri, 11 Sep 2020 at 14:35, Kyrylo Tkachov
> wrote:
> >
> > Hi C
The libgomp.oacc-fortran/privatized-ref-1.f95 also has the same issue, and has
been fixed in the same way.
Kwok
On 16/09/2020 11:33 am, Kwok Cheung Yeung wrote:
Hello
The libgomp.oacc-c++/privatized-ref-[23].C testcases request 64 workers in a
parallel section, but Nvidia only supports a max
This is the irange storage class. It is used to allocate the minimum
amount of storage needed for a given irange. Storage is automatically
freed at destruction.
It is meant for long term storage, as opposed to int_range_max which is
meant for intermediate temporary results on the stack.
Th
Christophe Lyon writes:
> On Wed, 16 Sep 2020 at 15:40, Andrea Corallo wrote:
>>
>> Richard Sandiford writes:
>>
>> > OK with two incredibly petty comments fixed:
>>
>> [...]
>>
>> Installed with the two suggestions as 052204fac58.
>>
>
> Hi,
>
> There is a typo with clastb_8.c:
> gcc.target/aa
Hi,
this patch fixes rather old bug that prevents ipa-reference to wrok
across partition boundary. What happens is that availability code
thinks that function is not available and thus we ignore the summary we
stream.
Bootstrapped/regtested x86_64-linux. Comitted.
I have a testcase that I will s
> This introduces an ICE building the glibc testsuite for alpha (bisected),
> s390 and sparc (symptoms appear the same, not bisected to confirm the
> exact revision). See bug 97078.
Fixed thus, tested on x86_64-suse-linux, applied on mainline as obvious.
PR middle-end/97078
* fu
This adds the capability to look for available negated multiplications
and divisions, replacing them with cheaper negates.
Bootstrapped and tested on x86_64-unknown-linux-gnu, pushed.
2020-09-17 Richard Biener
* tree-ssa-sccvn.c (visit_nary_op): Value-number multiplications
an
Hi Tobias,
I see. Then OK for trunk by me.
- Andre
On Wed, 16 Sep 2020 10:35:53 +0200
Tobias Burnus wrote:
> Hi Andre,
>
> On 9/16/20 9:58 AM, Andre Vehreschild wrote:
> > + st->n.sym = NULL;
> >
> > Don't we need free or unlink the st node from the symtree, too?
>
> I did not see a w
On Thu, 17 Sep 2020 at 12:27, Kyrylo Tkachov wrote:
>
>
>
> > -Original Message-
> > From: Christophe Lyon
> > Sent: 11 September 2020 20:05
> > To: Kyrylo Tkachov
> > Cc: i...@airs.com; gcc-patches@gcc.gnu.org
> > Subject: Re: [PATCH] libgcc/config/arm/fp16.c: Add missing prototypes
> >
Hi Christophe,
> -Original Message-
> From: Christophe Lyon
> Sent: 17 September 2020 12:56
> To: Kyrylo Tkachov
> Cc: i...@airs.com; gcc-patches@gcc.gnu.org
> Subject: Re: [PATCH] libgcc/config/arm/fp16.c: Add missing prototypes
>
> On Thu, 17 Sep 2020 at 12:27, Kyrylo Tkachov
> wrote
Hello,
On Wed, 16 Sep 2020, Richard Biener wrote:
> This removes the canonicalization of X + -CST to X - CST to facilitate
> SLP vectorization analysis where we currently treat the added testcase
> as two-operation plus blend vectorization opportunity. While there
> may be the possibility to avo
On Thu, 17 Sep 2020, Michael Matz wrote:
> Hello,
>
> On Wed, 16 Sep 2020, Richard Biener wrote:
>
> > This removes the canonicalization of X + -CST to X - CST to facilitate
> > SLP vectorization analysis where we currently treat the added testcase
> > as two-operation plus blend vectorization o
Hi all,
this is to fix a typo in a dejaGNU directive introduced with
with 052204fac58 "vec: don't select partial vectors when
unnecessary".
Okay for trunk?
gcc/testsuite/ChangeLog
2020-09-17 Andre Corallo
* gcc.target/aarch64/sve/clastb_8.c: Fix a dg-final scan
directive
Hi Kyrill,
> It's been a while, but I believe you had the following comment about
> implementing CSEL:
>
>> (define_insn_and_split "*thumb2_movsicc_insn"
>>[(set (match_operand:SI 0 "s_register_operand" "=l,l,r,r,r,r,r,r,r,r,r,r")
>> (if_then_else:SI
>> @@ -449,17 +473,14 @@
>>
On 9/9/20 8:20 PM, Sandra Loosemore wrote:
On 9/9/20 3:13 PM, Jason Merrill wrote:
My impression from Jeff's analysis in January and David's in March was
that many of the testsuite changes were from the C++ approach actually
providing better results, so the reversal here surprises me. Can yo
> On Sep 17, 2020, at 1:17 AM, Richard Sandiford
> wrote:
>
> Qing Zhao writes:
>> Segher and Richard,
>>
>> Now there are two major concerns from the discussion so far:
>>
>> 1. (From Richard): Inserting zero insns should be done after
>> pass_thread_prologue_and_epilogue since later p
__builtin_FUNCTION () returns __FUNCTION__ of its invoker.
Any thoughts about extending it to provide:
a) the qualified name of the caller
b) the full signature of the invoker (__PRETTY_FUNCTION__)
we could do this with another __builtin, or permitting
__builtin_FUNCTION to take an optional (o
Hi all,
second version of the patch here implementing the suggestion of using
create_output_operand and the expand_insn machinery.
Regtested and bootsraped on aarch64-linux-gnu.
Okay for trunk?
Thanks
Andrea
>From bb35b56810f908c575fec11435071d1c37f6f1a3 Mon Sep 17 00:00:00 2001
From: Andre
On Mon, 2020-08-24 at 22:26 +0200, Mark Wielaard wrote:
> On Mon, Aug 24, 2020 at 07:44:27PM +0200, Jakub Jelinek wrote:
> > On Mon, Aug 24, 2020 at 02:56:56PM +0200, Mark Wielaard wrote:
> > > Some DWARF tests scan the assembly output looking for constant values.
> > > When using DWARF5 those cons
On 9/16/20 9:23 PM, Jeff Law wrote:
On 9/15/20 1:47 PM, Martin Sebor wrote:
Overflowing the size of a dynamic allocation (e.g., malloc or VLA)
can lead to a subsequent buffer overflow corrupting the heap or
stack. The attached patch diagnoses a subset of these cases where
the overflow/wraparou
Qing Zhao writes:
>> On Sep 17, 2020, at 1:17 AM, Richard Sandiford
>> wrote:
>>
>> Qing Zhao writes:
>>> Segher and Richard,
>>>
>>> Now there are two major concerns from the discussion so far:
>>>
>>> 1. (From Richard): Inserting zero insns should be done after
>>> pass_thread_prologue_
According to [expr.const]/14, the result of substitution into an atomic
constraint is manifestly constant-evaluated; this patch adjusts the call
to maybe_constant_value in satisfy_atom to that effect.
Tested on x86_64-pc-linux-gnu, and also tested on the cmcstl2 and
range-v3 libraries. Does this
On Thu, Sep 17, 2020 at 06:03:28PM +0200, Mark Wielaard wrote:
> On Mon, 2020-08-24 at 22:26 +0200, Mark Wielaard wrote:
> > On Mon, Aug 24, 2020 at 07:44:27PM +0200, Jakub Jelinek wrote:
> > > On Mon, Aug 24, 2020 at 02:56:56PM +0200, Mark Wielaard wrote:
> > > > Some DWARF tests scan the assembly
Andrea Corallo writes:
> Hi all,
>
> this is to fix a typo in a dejaGNU directive introduced with
> with 052204fac58 "vec: don't select partial vectors when
> unnecessary".
>
> Okay for trunk?
OK, thanks. FWIW, this would also have been OK under the
“obviously correct” rule (but asking is obvio
Andrea Corallo writes:
> Hi all,
>
> second version of the patch here implementing the suggestion of using
> create_output_operand and the expand_insn machinery.
>
> Regtested and bootsraped on aarch64-linux-gnu.
>
> Okay for trunk?
>
> Thanks
>
> Andrea
>
> From bb35b56810f908c575fec11435071d1c
Richard Sandiford writes:
>> @@ -2034,6 +2034,18 @@ aarch64_expand_fpsr_fpcr_setter (int unspec,
>> machine_mode mode, tree exp)
>>emit_insn (gen_aarch64_set (unspec, mode, op));
>> }
>>
>> +/* Expand a fpsr or fpcr getter (depending on UNSPEC) using MODE.
>> + Return the target. */
>>
OG10 = devel/omp/gcc-10
Merge:GCC into branch:
18677004f40 Merge remote-tracking branch 'origin/releases/gcc-10' into
devel/omp/gcc-10
Applied mainline submitted patch:
ef509d1985a OpenMP: Handle cpp_implicit_alias in declare-target discovery
(PR96390)
https://gcc.gnu.org/pipermail/gcc-patches
The 'mod' and 'div' operators in eBPF are unsigned, with no signed
counterpart. xBPF adds two new ALU operations, sdiv and smod, for
signed division and modulus, respectively. Update bpf.md with
'define_insn' blocks for signed div and mod to use them when targetting
xBPF, and add new tests to ensur
On Linux/x86_64,
c7f4be78cb61006492d16375aba5392f580cd633 is the first bad commit
commit c7f4be78cb61006492d16375aba5392f580cd633
Author: Richard Biener
Date: Thu Sep 17 11:48:36 2020 +0200
CSE negated multiplications and divisions
caused
FAIL: gfortran.dg/array_constructor_11.f90 -O3
Richard Sandiford writes:
> OK, thanks. FWIW, this would also have been OK under the
> “obviously correct” rule (but asking is obviously OK too :-))
>
> Richard
Installed as ee7aa7e7b9d
Thanks for having a look and for the info!
Andrea
Hi!
On Tue, Sep 15, 2020 at 10:49:45AM +0930, Alan Modra wrote:
> Also use rs6000_cost only for speed.
More directly: use something completely different for !speed, namely,
code size.
> - if (CONST_INT_P (XEXP (x, 1))
> - && satisfies_constraint_I (XEXP (x, 1)))
> + if (!speed)
>
On 9/17/20 4:36 AM, Aldy Hernandez via Gcc-patches wrote:
This is the irange storage class. It is used to allocate the minimum
amount of storage needed for a given irange. Storage is automatically
freed at destruction.
It is meant for long term storage, as opposed to int_range_max which is
On 9/17/20 1:04 AM, Richard Biener wrote:
> On Wed, Sep 16, 2020 at 10:24 PM Jeff Law via Gcc-patches
> wrote:
>>
>> On 9/16/20 11:52 AM, Joseph Myers wrote:
>>> On Wed, 16 Sep 2020, Jeff Law via Gcc-patches wrote:
>>>
ISTM this is a lot like the problem we have where we inline functions
>>>
On 9/9/20 4:33 AM, Jozef Lawrynowicz wrote:
> There is no CFA information generated for instructions which manipulate the
> stack during function epilogues. This means a debugger cannot determine the
> position of variables on the stack whilst the epilogue is in progress.
>
> This can cause the de
On Thu, 10 Sep 2020, Patrick Palka wrote:
> On Thu, 10 Sep 2020, David Malcolm wrote:
>
> > On Tue, 2020-07-28 at 20:22 -0400, Patrick Palka wrote:
> > > On Tue, 28 Jul 2020, David Malcolm wrote:
> > >
> > > > On Tue, 2020-07-28 at 15:50 -0400, Patrick Palka wrote:
> > > > > Currently the -Wmisl
On 9/17/20 12:08 PM, Martin Sebor via Gcc-patches wrote:
On 9/16/20 9:23 PM, Jeff Law wrote:
On 9/15/20 1:47 PM, Martin Sebor wrote:
Overflowing the size of a dynamic allocation (e.g., malloc or VLA)
can lead to a subsequent buffer overflow corrupting the heap or
stack. The attached patch dia
On Thu, Sep 17, 2020 at 12:18:40PM -0600, Jeff Law via Gcc-patches wrote:
> >> In an LTO world the TU isn't indivisible anymore. LTO will happily
> >> discard things which don't appear to be used. So parts of the TU may
> >> be in the main program, other parts may be in DSOs used by the main
> >
> On Sep 17, 2020, at 11:27 AM, Richard Sandiford
> wrote:
>
> Qing Zhao mailto:qing.z...@oracle.com>> writes:
>>> On Sep 17, 2020, at 1:17 AM, Richard Sandiford
>>> wrote:
>>>
>>> Qing Zhao writes:
Segher and Richard,
Now there are two major concerns from the discussion
This patch by Paul Murphy fixes calls from libgo to ptrace. In glibc,
ptrace is actually declared as a variadic function. On ppc64le the
ABI requires to the caller to allocate space for the parameters and
allows the caller to modify them.
On ppc64le, depending on how and what version of GCC is u
On Linux/x86_64,
c7f4be78cb61006492d16375aba5392f580cd633 is the first bad commit
commit c7f4be78cb61006492d16375aba5392f580cd633
Author: Richard Biener
Date: Thu Sep 17 11:48:36 2020 +0200
CSE negated multiplications and divisions
caused
FAIL: gfortran.dg/array_constructor_11.f90 -O3
Hi!
On Thu, Sep 17, 2020 at 08:10:22AM +0100, Richard Sandiford wrote:
> Alex Coplan writes:
> The combine parts LGTM otherwise, but Segher should have the
> final say.
I am doubtful this does not regress on many targets.
I'll test it, we'll see :-)
Segher
Bugzilla inspection turned up a bunch of old(er) PRs that have been
fixed. Let's include them not to regress in the future.
Tested x86_64-pc-linux-gnu, applying to trunk.
PR c++/87530
PR c++/58156
PR c++/68828
PR c++/86002
PR c++/91525
PR c++/96223
On 9/17/20 12:39 PM, Andrew MacLeod wrote:
On 9/17/20 12:08 PM, Martin Sebor via Gcc-patches wrote:
On 9/16/20 9:23 PM, Jeff Law wrote:
On 9/15/20 1:47 PM, Martin Sebor wrote:
Overflowing the size of a dynamic allocation (e.g., malloc or VLA)
can lead to a subsequent buffer overflow corruptin
On 9/17/20 3:37 AM, Dimitrij Mijoski via Gcc-patches wrote:
> contrib/ChangeLog:
> PR other/97076
> * clang-format: Update.
THanks. Installed.
jeff
pEpkey.asc
Description: application/pgp-keys
On 9/14/20 5:06 AM, Yeting Kuo via Gcc-patches wrote:
> Hi Kito,
>
>>> Could you provide a test case for that?
> I add the test case and update the git message.
> RISC-V: fix a typo in riscv.h
>
> The missing parentheses would make shorten-memrefs pass give a
> wrong base when the offs
On 9/14/20 3:29 AM, Christophe Lyon via Gcc-patches wrote:
> Initializing orig_err avoids a warning: "may be used uninitialized".
>
> 2020-09-14 Torbjörn SVENSSON
> Christophe Lyon
>
> libiberty/
> * pex-win32 (pex_win32_exec_child): Initialize orig_err.
Rather than just bli
On 9/10/20 6:01 AM, Tom de Vries wrote:
> Hi,
>
> Consider test-case gcc.c-torture/compile/pr71109.c.
>
> It contains a prototype-less declaration of foo:
> ...
> static void foo ();
> ...
> followed by a call to foo
> ...
> foo (bar, a);
> ...
> followed by the definition of foo:
> ...
> st
On 9/10/20 3:44 AM, Jozef Lawrynowicz wrote:
> The new operand modifiers can be used to select odd-numbered bytes of a memory
> reference or constant value.
>
> Successfully regtested on trunk for msp430-elf in the default, -mlarge,
> -mcpu=msp430 and -mlarge/-mcode-region=either/-mdata-region=eit
On 9/4/20 3:24 PM, Sergei Trofimovich via Gcc-patches wrote:
> From: Sergei Trofimovich
>
> gcc/ChangeLog:
>
> * gcc/profile.c (sort_hist_values): Clarify hist format:
> start with a value, not counter.
OK
jeff
pEpkey.asc
Description: application/pgp-keys
On 9/2/20 7:28 AM, Martin Liška wrote:
> On 9/1/20 2:31 PM, Martin Liška wrote:
>> Hey.
>>
>> I've just applied to patches to glibc introducing a new mallinfo2
>> function.
>> Limitation of the current function mallinfo is usage of int type
>> which overflows
>> for allocation > 2GB.
>>
>> The pat
On 9/2/20 7:28 AM, Martin Liška wrote:
> On 9/1/20 4:04 PM, Jan Hubicka wrote:
>>> The patch is about usage of MiB in memory allocation reports.
>>> I see it much better readable than values displayed in KiB:
>>>
>>> Reading object files: tramp3d-v4.o {GC released 1 MiB} {GC 19 MiB ->
>>> 19 MiB}
On 9/2/20 7:29 AM, Martin Liška wrote:
> On 9/1/20 2:33 PM, Martin Liška wrote:
>> The last patch is a refactoring using ONE_* macros.
>>
>> Thoughts?
>> Thanks,
>> Martin
>
> There's rebassed version of the patch.
>
> Patch can bootstrap on x86_64-linux-gnu and survives regression tests.
>
> Read
On 8/28/20 12:33 AM, Jojo R wrote:
> gcc/ChangeLog:
>
> * config.gcc (C-SKY): Add compatibility of elf target name.
>
> libgcc/ChangeLog:
>
> * config.host (C-SKY): Add compatibility of elf target name.
OK
jeff
pEpkey.asc
Description: application/pgp-keys
On Thu, Sep 17, 2020 at 05:27:59PM +0100, Richard Sandiford wrote:
> Qing Zhao writes:
> > The following is what I see from i386.md: (I didn’t look at how
> > “UNSPEC_volatile” is used in data flow analysis in GCC yet)
> >
> > ;; UNSPEC_VOLATILE is considered to use and clobber all hard registers
On Wed, 16 Sep 2020, Martin Sebor via Gcc-patches wrote:
> Attached is an updated revision of the patch. Besides the tweaks
> above it also contains a cosmetic change to the warning issued
> for mismatches in unspecified VLA bounds: it points at the decl
> with more of them to guide the user to s
On 8/27/20 7:18 AM, Alex Coplan wrote:
> This simple patch rewords a comment in cfgloop.h to improve the
> grammar and readability.
>
> OK for master?
>
> Thanks,
> Alex
>
> ---
>
> gcc/ChangeLog:
>
> * cfgloop.h (nb_iter_bound): Reword comment describing is_exit.
OK
jeff
pEpkey.asc
De
On Thu, 17 Sep 2020, Jason Merrill via Gcc-patches wrote:
> The C++ changes are OK. A C maintainer will need to sign off on the changes
> there.
The C front-end changes are OK.
Note: for a long time there used to be actual (undesired) semantic
differences between the C and C++ loop handling, b
On 9/17/20 11:15 AM, David Faust via Gcc-patches wrote:
> The 'mod' and 'div' operators in eBPF are unsigned, with no signed
> counterpart. xBPF adds two new ALU operations, sdiv and smod, for
> signed division and modulus, respectively. Update bpf.md with
> 'define_insn' blocks for signed div and
On 9/16/20 8:46 AM, Richard Sandiford wrote:
> "H.J. Lu" writes:
>> On Tue, Sep 15, 2020 at 7:44 AM Richard Sandiford
>> wrote:
>>> Thanks for looking at this.
>>>
>>> "H.J. Lu" writes:
commit 1bcb4c4faa4bd6b1c917c75b100d618faf9e628c
Author: Richard Sandiford
Date: Wed Oct 2 0
On 9/17/20 8:32 AM, Jason Merrill wrote:
> On 9/9/20 8:20 PM, Sandra Loosemore wrote:
>> On 9/9/20 3:13 PM, Jason Merrill wrote:
>>>
>>> My impression from Jeff's analysis in January and David's in March
>>> was that many of the testsuite changes were from the C++ approach
>>> actually providing b
On 9/3/20 4:37 PM, Segher Boessenkool wrote:
>> Apart from that, one P9 specific point is that the update form load isn't
>> preferred, the reason is that the instruction can not retire until both
>> parts complete, it can hold up subsequent instructions from retiring.
>> If the addi stalls (star
Hi Jeff,
On Thu, Sep 17, 2020 at 05:12:17PM -0600, Jeff Law wrote:
> On 9/3/20 4:37 PM, Segher Boessenkool wrote:
> >> Apart from that, one P9 specific point is that the update form load isn't
> >> preferred, the reason is that the instruction can not retire until both
> >> parts complete, it can
On Thu, 2020-09-17 at 12:36 +0200, Aldy Hernandez via Gcc-patches
wrote:
> This is the irange storage class. It is used to allocate the
> minimum
> amount of storage needed for a given irange. Storage is
> automatically
> freed at destruction.
>
> It is meant for long term storage, as opposed
On 9/17/20 8:32 AM, Jason Merrill wrote:
We discussed this in a team meeting the other day, and agreed that it's
probably simpler to switch back to gotos for C++ than fix up all the
optimizers. And that there probably isn't much benefit to the
middle-end to retain the higher level representat
Hi,
The commit r11-3230 brings a nice improvement to use full
vectors instead of partial vectors when available. But
it caused some vector with length test cases to fail on
Power.
The failure on gcc.target/powerpc/p9-vec-length-epil-7.c
exposed one issue that: we call function
vect_need_peeling
Martin's -Wplacement-new patch ran into a problem with DECL_SIZE not being
set on an extern variable for which the type was not complete until after
its declaration. complete_vars was deliberately not calling layout_decl for
some reason, instead leaving that for expand_expr_real_1 much later in th
On Thu, Sep 17, 2020 at 12:51:25PM -0500, Segher Boessenkool wrote:
> Hi!
>
> On Tue, Sep 15, 2020 at 10:49:45AM +0930, Alan Modra wrote:
> > Also use rs6000_cost only for speed.
>
> More directly: use something completely different for !speed, namely,
> code size.
Yes, that might be better.
>
On 9/18/20 3:43 AM, David Malcolm wrote:
On Thu, 2020-09-17 at 12:36 +0200, Aldy Hernandez via Gcc-patches
wrote:
This is the irange storage class. It is used to allocate the
minimum
amount of storage needed for a given irange. Storage is
automatically
freed at destruction.
It is meant for
On Thu, Sep 17, 2020 at 12:10 PM Jeff Law wrote:
>
>
> On 9/15/20 9:20 PM, Hongtao Liu via Gcc-patches wrote:
> > Hi:
> > Rtx cost of sse_to_integer would be used by pass_stv as a
> > measurement for the scalar-to-vector transformation. As
> > https://gcc.gnu.org/pipermail/gcc-patches/2019-Augus
On 9/17/20 8:02 PM, Martin Sebor wrote:
> On 9/17/20 4:36 AM, Aldy Hernandez via Gcc-patches wrote:
>> This is the irange storage class. It is used to allocate the minimum
>> amount of storage needed for a given irange. Storage is automatically
>> freed at destruction.
>>
>> It is meant for long
vec_insert accepts 3 arguments, arg0 is input vector, arg1 is the value
to be insert, arg2 is the place to insert arg1 to arg0. Current expander
generates stxv+stwx+lxv if arg2 is variable instead of constant, which
causes serious store hit load performance issue on Power. This patch tries
1) Bu
This patch enables transformation from ARRAY_REF(VIEW_CONVERT_EXPR) to
VEC_SET internal function in gimple-isel pass if target supports
vec_set with variable index by checking can_vec_set_var_idx_p.
gcc/ChangeLog:
2020-09-18 Xionghu Luo
* gimple-isel.cc (gimple_expand_vec_set_expr): N
On 9/17/20 10:18 PM, Martin Sebor wrote:
On 9/17/20 12:39 PM, Andrew MacLeod wrote:
On 9/17/20 12:08 PM, Martin Sebor via Gcc-patches wrote:
On 9/16/20 9:23 PM, Jeff Law wrote:
On 9/15/20 1:47 PM, Martin Sebor wrote:
Overflowing the size of a dynamic allocation (e.g., malloc or VLA)
can l
On Fri, Sep 18, 2020 at 5:20 AM Jason Merrill via Gcc-patches
wrote:
>
> Martin's -Wplacement-new patch ran into a problem with DECL_SIZE not being
> set on an extern variable for which the type was not complete until after
> its declaration. complete_vars was deliberately not calling layout_decl
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