Displaying 20 results from an estimated 1000 matches similar to: "Mapping InlineAsm parameters to ConstraintInfoVector elements"
2018 Mar 16
0
Mapping InlineAsm parameters to ConstraintInfoVector elements
Could you provide an example where MSan checks an output parameter?
On Fri, Mar 16, 2018 at 9:53 AM, Alexander Potapenko via llvm-dev
<llvm-dev at lists.llvm.org> wrote:
> Hi all,
>
> I'm trying to figure out which parameters of a given InlineAsm instruction
> are its inputs, and which are the outputs (rationale: make sure MSan
> doesn't check the output parameters of
2019 Aug 01
2
Dead store elimination in the backend for -ftrivial-auto-var-init
On Thu, Aug 1, 2019 at 6:09 PM JF Bastien <jfbastien at apple.com> wrote:
>
> Hi Alexander,
>
> The code doesn’t compile. Could you send a godbolt.org link that shows the issue?
Sorry about that, here's the link: https://godbolt.org/z/-PinQP
Lines 4 to 8 are initializing |acpar|.
If I'm understanding correctly, the store to 8(%rsp) at line 7 can be
removed because of the
2019 Aug 01
2
Dead store elimination in the backend for -ftrivial-auto-var-init
On Thu, Aug 1, 2019 at 6:38 PM JF Bastien <jfbastien at apple.com> wrote:
>
>
>
> > On Aug 1, 2019, at 9:20 AM, Alexander Potapenko <glider at google.com> wrote:
> >
> > On Thu, Aug 1, 2019 at 6:09 PM JF Bastien <jfbastien at apple.com> wrote:
> >>
> >> Hi Alexander,
> >>
> >> The code doesn’t compile. Could you send
2019 Aug 07
2
Dead store elimination in the backend for -ftrivial-auto-var-init
There are two problems:
1. padding after union and call to q(), without LTO we can't remove that
store.
2. shortcut which I have which ignores all instructions q() . this assume
that memset to acpar.match, acpar.matchinfo also useful which is not true. I
should be able to improve this case.
On Thu, Aug 1, 2019 at 11:29 PM Vitaly Buka <vitalybuka at google.com> wrote:
> On a first
2018 Sep 19
2
Obtaining the origin function for a local var after inlining
On Tue, Sep 18, 2018 at 1:56 AM Adrian Prantl <aprantl at apple.com> wrote:
>
>
>
> > On Sep 17, 2018, at 6:59 AM, Alexander Potapenko via llvm-dev <llvm-dev at lists.llvm.org> wrote:
> >
> > (I think I've asked a similar question off-list a couple of times, but
> > never got an answer)
> >
> > Hi folks,
> >
> > For [K]MSAN
2018 Sep 17
3
Obtaining the origin function for a local var after inlining
(I think I've asked a similar question off-list a couple of times, but
never got an answer)
Hi folks,
For [K]MSAN we need to figure out which inlined function a local var
originally belonged to in the source file.
E.g. when a local buffer %buf is declared in @bar(), but @bar() is
inlined into @foo(), then there's a local %buf.i in @foo(), but we
need to determine that the local came from
2019 Aug 01
2
Dead store elimination in the backend for -ftrivial-auto-var-init
Hi folks,
When compiling the attached example with -ftrivial-auto-var-init=zero:
$ clang -no-integrated-as -mno-sse -m64 -mstack-alignment=8 -O2
-ftrivial-auto-var-init=zero
-enable-trivial-auto-var-init-zero-knowing-it-will-be-removed-from-clang
-g -o ipt.ll -c ipt.i -w -S -emit-llvm
, Clang generates an initialization memset() call for |acpar| in the IR:
%0 = bitcast
2018 Sep 05
2
AddressSanitizer on SPECCPU2006
Hi Alex
Thanks for your email. But it seems not work. I removed the
-fsanitize=address flag.
The global buffer overflow message doesn't show. However, no *.sancov file
is created after I run perlbench. Thus, I could not get the BB coverage. Do
you have any ideas? Many Thanks
Regards
Muhui
Alexander Potapenko <glider at google.com> 于2018年9月5日周三 下午7:14写道:
> Hi Muhui,
>
> If
2018 Sep 25
1
Obtaining the origin function for a local var after inlining
On Wed, Sep 19, 2018 at 5:18 PM Adrian Prantl <aprantl at apple.com> wrote:
>
>
>
> > On Sep 19, 2018, at 4:08 AM, Alexander Potapenko <glider at google.com> wrote:
> >
> > On Tue, Sep 18, 2018 at 1:56 AM Adrian Prantl <aprantl at apple.com> wrote:
> >>
> >>
> >>
> >>> On Sep 17, 2018, at 6:59 AM, Alexander
2018 Sep 05
2
AddressSanitizer on SPECCPU2006
Hi
If so, is it able to disable this check. All I need is just to get the BB
coverage information
Regards
Muhui
Alexander Potapenko <glider at google.com>于2018年9月5日 周三下午6:57写道:
> This is a known problem in SPECCPU2006, see
> https://github.com/google/sanitizers/wiki/AddressSanitizerFoundBugs
> On Wed, Sep 5, 2018 at 7:36 AM Muhui Jiang via llvm-dev
> <llvm-dev at
2019 Apr 16
2
Interprocedural DSE for -ftrivial-auto-var-init
On Mon, Apr 15, 2019 at 11:02 PM Amara Emerson via llvm-dev
<llvm-dev at lists.llvm.org> wrote:
>
>
> > On Apr 15, 2019, at 1:51 PM, Vitaly Buka via llvm-dev <llvm-dev at lists.llvm.org> wrote:
> >
> > Hi JF,
> >
> > I've heard that you are interested DSE improvements and maybe we need to be in sync.
> > So far I experimented with
2019 Apr 16
2
Interprocedural DSE for -ftrivial-auto-var-init
Can you post numbers for how many stores get eliminated from CTMark?
> On Apr 16, 2019, at 11:45 AM, Vitaly Buka <vitalybuka at google.com> wrote:
>
> I tried -Os and effect of new approach significantly increases.
> I run regular DSE and immediately myDSE. With -Os myDSE removes more than 50% of DSE number.
> Which is expected as -Os inlines less and regular DSE can't
2019 May 13
2
Interprocedural DSE for -ftrivial-auto-var-init
> On May 10, 2019, at 8:59 PM, Vitaly Buka via llvm-dev <llvm-dev at lists.llvm.org> wrote:
>
> Sorry for delay, I was busy with other stuff.
> CTMark results.
>
> dse is the current DSE.
> dsem is my experimental module level DSE.
> dsem runs after dse, so it's additionally deleted stores.
>
> -O3
> dse - Number of stores deleted
2018 Sep 05
2
AddressSanitizer on SPECCPU2006
Hi
I am using SanitizerCoverage feature supported by clang to get the
basicblock coverage.
my tested binaries are spec cpu2006. I compiled the binary with the option
COPTIMIZE = -O0 -fsanitize=address -fsanitize-coverage=bb -flto
-fno-strict-aliasing -std=gnu89 -gdwarf-3
After the compiling process is end. I run the 400.perlbench. with the
command
ASAN_OPTIONS=coverage=1 ./perlbench.
2019 Apr 15
3
Interprocedural DSE for -ftrivial-auto-var-init
Hi JF,
I've heard that you are interested DSE improvements and maybe we need to
be in sync.
So far I experimented with following DSE improvements:
* Cross-block DSE, it eliminates additional 7% stores comparing to existing
DSE. But it's not visible on benchmarks.
* Cross-block + Interprocedural analysis to annotate each function argument
with:
- can read before write
- will
2020 Oct 28
2
GT710 and Nouveau on ARM/ARM64
Hi
Seeing as we (Raspberry Pi) have just launched the Compute Module 4
with an exposed PCIe x1 lane, people are asking about adding graphics
cards.
Seeing as you are the people who have the knowledge with regard to
NVidia and nouveau, what are your immediate thoughts of nouveau
working on ARM/ARM64? Is there a chance of this working? I'm no PCIe
expert, although I can call on some expertise
2020 Feb 25
2
[PATCH 04/12] drm: Nuke mode->vrefresh
On Tue, Feb 25, 2020 at 04:19:27PM +0100, Andrzej Hajda wrote:
> On 25.02.2020 12:21, Ville Syrj?l? wrote:
> > On Mon, Feb 24, 2020 at 03:14:54PM +0100, Andrzej Hajda wrote:
> >> On 19.02.2020 21:35, Ville Syrjala wrote:
> >>> From: Ville Syrj?l? <ville.syrjala at linux.intel.com>
> >>>
> >>> Get rid of mode->vrefresh and just
2024 Jul 28
1
[PATCH v2 02/37] drm/nouveau: handle pci/tegra drm_dev_{alloc, register} from common code
On Sun, Jul 28, 2024 at 11:34:14PM +0200, Danilo Krummrich wrote:
> On Sun, Jul 28, 2024 at 03:13:08PM -0300, Jason Gunthorpe wrote:
> I think we're on the same page with all that. As clarified in [1], that's not a
> big concern, I was referring to the changes required to integrate the auxbus
> stuff.
Well, I see this thread having the realization that things are not
setup
2020 Sep 18
2
[PATCH v6 0/4] Add a vhost RPMsg API
Hi Arnaud,
On Thu, Sep 17, 2020 at 05:21:02PM +0200, Arnaud POULIQUEN wrote:
> Hi Guennadi,
>
> > -----Original Message-----
> > From: Guennadi Liakhovetski <guennadi.liakhovetski at linux.intel.com>
> > Sent: jeudi 17 septembre 2020 07:47
> > To: Arnaud POULIQUEN <arnaud.pouliquen at st.com>
> > Cc: kvm at vger.kernel.org; linux-remoteproc at
2020 Sep 18
2
[PATCH v6 0/4] Add a vhost RPMsg API
Hi Arnaud,
On Thu, Sep 17, 2020 at 05:21:02PM +0200, Arnaud POULIQUEN wrote:
> Hi Guennadi,
>
> > -----Original Message-----
> > From: Guennadi Liakhovetski <guennadi.liakhovetski at linux.intel.com>
> > Sent: jeudi 17 septembre 2020 07:47
> > To: Arnaud POULIQUEN <arnaud.pouliquen at st.com>
> > Cc: kvm at vger.kernel.org; linux-remoteproc at