search for: subtlety

I've just wasted a day chasing my tail because of subtleties introduced to handle the optionality of the DataLayout. I would like to never do this again. =] We now have this attached to the Module with just a flimsy faked-up pass to keep APIs consistent. So, is there any problem with beginning down the path of: 1) Synthesizing a "default" boring DataLayout for all modules that

From: Stefano Stabellini <stefano.stabellini@eu.citrix.com> When disk is a cdrom and the drive is empty the "params" node in xenstore might be missing completely: cope with it instead of segfaulting. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> --- hw/xen_disk.c | 16 +++++++++++----- 1 files changed, 11 insertions(+), 5 deletions(-) diff --git

...the command just hung trying to load the library. Here is the content of the description file, Package: nws Title: R functions for NetWorkSpaces and Sleigh Version: 1.3.0 License: GPL Version 2 or later Depends: R (>=2.1), methods SaveImage: true URL: http://nws-r.sourceforge.net Is there any subtlety between building R packages in Linux and Windows? I can build and load this package under Linux. But can't figure out what's causing the hang on Windows and how to debug the problem. Has anyone ran into similar problem before, and steps you took to debug the problem? I very much apprec...

...tter or for worse, I'm trying to understand this code. So far, > I've come up with this patch: > > https://git.kernel.org/pub/scm/linux/kernel/git/luto/linux.git/commit/?h=x86/vdso-tglx&id=14fd71e12b1c4492a06f368f75041f263e6862bf > > Is it correct, or am I missing some subtlety? The master clock, when initialized, has a pair masterclockvalues=(TSC value, time-of-day data). When updating the guest clock, we only update relative to (TSC value) that was read on masterclock initialization. See the following comment on x86.c: /* * * Assuming a stable TSC across physical...

...tter or for worse, I'm trying to understand this code. So far, > I've come up with this patch: > > https://git.kernel.org/pub/scm/linux/kernel/git/luto/linux.git/commit/?h=x86/vdso-tglx&id=14fd71e12b1c4492a06f368f75041f263e6862bf > > Is it correct, or am I missing some subtlety? The master clock, when initialized, has a pair masterclockvalues=(TSC value, time-of-day data). When updating the guest clock, we only update relative to (TSC value) that was read on masterclock initialization. See the following comment on x86.c: /* * * Assuming a stable TSC across physical...

Hi, When I’m compiling a code with –fvisibility=hidden –fPIC for ARM, I find that LLVM generates less optimized code than GCC. For example: test.cpp: void init(void *); int g0[100]; int g1[100]; int g2[100]; void foo() { init(&g0); init(&g1); init(&g2); } Clang will emit 1 GOT entry for each GV and 2 instructions to get the address: ldr

...> >> > >> #define LIT(x) x_string_ref_literal > >> constexpr StringRef Strings[] = {LIT("a"), LIT("b"), LIT("c")}; > > > > Why bother with the UDL? > > #define LIT(x) StringRef((x), sizeof(x)-1) > > > > There is subtlety though, it changes the result for: LIT(“hello\0world”). > > — > Mehdi > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20161129/5a923756/attachment.html>

On Mon, Jun 12, 2017 at 11:24 PM, Tobias Grosser via llvm-dev < llvm-dev at lists.llvm.org> wrote: > Hi Jakub, > > thanks for the update. I was already eagerly waiting to hear what your > internship on dominance brings. I think the numbers are already very > encouraging and I believe moving incrementally over to the new algorithm > is exactly the right approach. > >

I added a couple of static probes to Firefox to measure actual work done. I could have used a pid$target probe with a function name but work is done within an if statement, which is where I placed the static probes. I''m wondering about my use, though. Is the following significantly more efficient than pid$target::FunName:entry and return? I heard somewhere that $target does not

> On Aug 20, 2014, at 9:37 AM, Reid Kleckner <rnk at google.com> wrote: > > On Tue, Aug 19, 2014 at 10:37 PM, Chandler Carruth <chandlerc at google.com> wrote: > > On Tue, Aug 19, 2014 at 5:05 PM, Jim Grosbach <grosbach at apple.com> wrote: > Note that it’s not exactly equivalent to enabling -march=core-avx2. It’s really close, but not 100% the same. >

...called with INT_MIN, though I don't immediately see anything to indicate this. Indeed there is a later comment in this function that indicates INT_MIN is an anticipated input, but the negation has already occurred by this point. I am not a floating point expert, so perhaps I am missing some subtlety here. If so, apologies for the noise. The above refers to r218935 and similar code is present in __floatsisf. Thanks, Matthew

> On Oct 4, 2018, at 12:31 PM, Peter Zijlstra <peterz at infradead.org> wrote: > > On Thu, Oct 04, 2018 at 07:00:45AM -0700, Andy Lutomirski wrote: >>> On Oct 4, 2018, at 1:11 AM, Peter Zijlstra <peterz at infradead.org> wrote: >>> >>>> On Thu, Oct 04, 2018 at 09:54:45AM +0200, Vitaly Kuznetsov wrote: >>>> I was hoping to hear this

> On Oct 4, 2018, at 12:31 PM, Peter Zijlstra <peterz at infradead.org> wrote: > > On Thu, Oct 04, 2018 at 07:00:45AM -0700, Andy Lutomirski wrote: >>> On Oct 4, 2018, at 1:11 AM, Peter Zijlstra <peterz at infradead.org> wrote: >>> >>>> On Thu, Oct 04, 2018 at 09:54:45AM +0200, Vitaly Kuznetsov wrote: >>>> I was hoping to hear this

...this code. So far, > > > I've come up with this patch: > > > > > > https://git.kernel.org/pub/scm/linux/kernel/git/luto/linux.git/commit/?h=x86/vdso-tglx&id=14fd71e12b1c4492a06f368f75041f263e6862bf > > > > > > Is it correct, or am I missing some subtlety? > > > > The master clock, when initialized, has a pair > > > > masterclockvalues=(TSC value, time-of-day data). > > > > When updating the guest clock, we only update relative to (TSC value) > > that was read on masterclock initialization. > > I don&...

...this code. So far, > > > I've come up with this patch: > > > > > > https://git.kernel.org/pub/scm/linux/kernel/git/luto/linux.git/commit/?h=x86/vdso-tglx&id=14fd71e12b1c4492a06f368f75041f263e6862bf > > > > > > Is it correct, or am I missing some subtlety? > > > > The master clock, when initialized, has a pair > > > > masterclockvalues=(TSC value, time-of-day data). > > > > When updating the guest clock, we only update relative to (TSC value) > > that was read on masterclock initialization. > > I don&...

...ke authentication via other resources that no longer support NT1, so am I correct in inferring that the only option at this point to get Win10 domain logins with a later version of SMB (greater than NT1) is by upgrading the domain to a full Samba AD DC? Lastly, could someone help me understand the subtlety between the dialect of SMB2/SMB3 Samba supports versus the variety Win10 is trying to negotiate, and why there is the disconnect? Put a different way, I don't understand exactly why Win10/Samba can't negotiate down to an SMB level both can use (well, one greater than NT1, I guess) -- Vi...

Hi there, I’m building llvm for my iOS devices, and all seems to work well, until I try to execute the results: LLVM ERROR: Program used external function '___ltsf2' which could not be resolved! This appears to be part of compiler-rt which as far as I can see should be built / linked automatically when installed correctly? Am I missing something obvious? Thanks, .m

Hi. I'm working on a backend for the [DCPU16](https://github.com/techcompliant/TC-Specs/blob/master/CPU/DCPU.md), a fictional CPU. The main subtlety is that the bytes are 16 bits instead of 8. There is already a [working backend](https://github.com/krasin/llvm-dcpu16), but it does a lot of source modification to support 16 bit words. I try to update it to latest llvm, but it obviously fails since the new code assumes 1 word == 8 bits. Any...

This has an annoying subtlety around the fact that we can pass a single user_data and multiple closures in one function call. The LIBNBD_CALLBACK_FREE function would be called several times with the same user_data in this case, which means the callback must do some kind of reference counting before the user_data can be freed....

Dear All, I am pretty satisfied with R for my plotting, but there are a few subtleties which I cannot figure out. Consider figure 1 in the paper at the link below http://cxnets.googlepages.com/univ_citations.pdf Can I have the same kind of ticks in an R-generated figure (that is to say: ticks along the 4 axis, and in a log-log plot I'd like a larger tick for any power of 10). I did a bit