Displaying 20 results from an estimated 5000 matches similar to: "[LLVMdev] exp2 and log2 intrinsic expansion"
2020 Oct 28
4
Targeting old glibc
Hi,
I wonder what is the right way to target an old glibc?
I have a machine which is up to date (glibc 2.32 and clang+lld 10.0.1).
So far I've been able to target older glibc by having a C file containing:
__asm__(".symver powf,powf at GLIBC_2.2.5");
__asm__(".symver expf,expf at GLIBC_2.2.5");
__asm__(".symver exp2f,exp2f at GLIBC_2.2.5");
2020 Nov 09
0
Targeting old glibc
Hi,
So I managed to install llvm 11 on the server and got more information
thank to your help:
Projects/Podolski/CMakeFiles/Podolski.dir/__/__/AudioModulesFrame/AM_WavLoader.cpp.o:
reference to exp
Projects/Podolski/CMakeFiles/Podolski.dir/__/__/libs/tinyexpr/tinyexpr.c.o:
reference to exp
Projects/Podolski/CMakeFiles/Podolski.dir/__/__/AudioModulesFrame/AM_PitchTrack.cpp.o:
reference to exp
2020 Oct 28
2
Targeting old glibc
On Wed, Oct 28, 2020 at 6:07 PM Fangrui Song <maskray at google.com> wrote:
>
> On 2020-10-28, Alexandre Bique via llvm-dev wrote:
> >Hi,
> >
> >I wonder what is the right way to target an old glibc?
> >
> >I have a machine which is up to date (glibc 2.32 and clang+lld 10.0.1).
> >
> >So far I've been able to target older glibc by having a
2020 Nov 11
0
Targeting old glibc
This did the job:
patchelf --clear-symbol-version log Podolski.64.so
Alexandre Bique
On Wed, Nov 11, 2020 at 2:19 PM Alexandre Bique
<bique.alexandre at gmail.com> wrote:
>
> On Tue, Nov 10, 2020 at 7:01 PM Fāng-ruì Sòng <maskray at google.com> wrote:
> > > How to find what is pulling libmvec?
> >
> > If you build a -DCMAKE_BUILD_TYPE=Debug lld, you can
2010 Mar 10
1
log2(quote(1:10)) evaluates the quoted 1:10, log() does not
This is very minor, but shouldn't log2(quote(1:10))
throw an error,the same as log() and other math functions
do? It looks like log2 and log10 evaluate a call object
instead of throwing a non-numeric-argument error. They
do object to non-call language objects, like expressions.
> log2(quote(1:10))
[1] 0.000000 1.000000 1.584963 2.000000 2.321928 2.584963
[7] 2.807355 3.000000
2020 Nov 09
2
Targeting old glibc
On Mon, Nov 9, 2020 at 9:39 AM Alexandre Bique
<bique.alexandre at gmail.com> wrote:
>
> Hi,
>
> So I managed to install llvm 11 on the server and got more information
> thank to your help:
>
> Projects/Podolski/CMakeFiles/Podolski.dir/__/__/AudioModulesFrame/AM_WavLoader.cpp.o:
> reference to exp
>
2020 Nov 11
2
Targeting old glibc
On Tue, Nov 10, 2020 at 7:01 PM Fāng-ruì Sòng <maskray at google.com> wrote:
> > How to find what is pulling libmvec?
>
> If you build a -DCMAKE_BUILD_TYPE=Debug lld, you can set a breakpoint
> on lld/ELF/MarkLive.cpp:114 (ss->getFile().isNeeded) and check which
> symbol makes
> libmvec.so needed.
I'm afraid this is going to far for me :)
> > On the other
2020 Nov 11
0
Targeting old glibc
On 2020-11-11, Alexandre Bique wrote:
>It did partially fix the issue but there is still one problem:
>
>llvm-objdump -sx gives:
>
>Version References:
> required from libpthread.so.0:
> 0x09691a75 0x00 05 GLIBC_2.2.5
> 0x09691972 0x00 09 GLIBC_2.3.2
> 0x09691973 0x00 07 GLIBC_2.3.3
> 0x06969192 0x00 12 GLIBC_2.12
> required from libdl.so.2:
>
2020 Nov 11
2
Targeting old glibc
It did partially fix the issue but there is still one problem:
llvm-objdump -sx gives:
Version References:
required from libpthread.so.0:
0x09691a75 0x00 05 GLIBC_2.2.5
0x09691972 0x00 09 GLIBC_2.3.2
0x09691973 0x00 07 GLIBC_2.3.3
0x06969192 0x00 12 GLIBC_2.12
required from libdl.so.2:
0x09691a75 0x00 21 GLIBC_2.2.5
required from libuuid.so.1:
0x09da27b0 0x00 19
2011 Jun 13
2
log2() and -min() very quick question
I'm looking over good-code a post-doc in my lab wrote and trying to learn
how it works. I came across the following:
rel.abundance <- as.matrix(read.delim("rel.abundance.csv",row.names=1,as.is
=TRUE))
rel.abundance <- log2(rel.abundance-min(rel.abundance)+1)
I'm not sure what the second line is doing. I ran each line in R and
couldn't see a noticeable difference in
2003 Oct 29
1
I have a problem with the log2 function
Dear R users,
according the help(log), the function
log2(x) should give the natural logarithm of x.
I expect in case of x=2 to to get 0.6931, however, R gives me 1 as a result.
Similar, logb(2,2) gives 1 again.
I'm wondering if I have missed something ?
Yours
Frank
--
Frank Mattes, MD e-mail: f.mattes at ucl.ac.uk
Department of Virology fax 0044(0)207 8302854
Royal Free Hospital
2008 Feb 27
1
Warnings generated by log2()/log10() are really large/takes a long time to display
x <- rnorm(1e6);
y <- log(x); # or logb(x) or log1p(x)
w <- warnings();
print(object.size(w));
## [1] 480
str(w);
$ NaNs produced: language log(x)
- attr(*, "dots")= list()
- attr(*, "class")= chr "warnings"
y <- log2(x); # or log10(x)
w <- warnings();
print(object.size(w));
## [1] 8000536
str(w);
## List of 1
## $ NaNs produced: language
2012 Apr 25
0
[LLVMdev] [PATCH][RFC] NVPTX Backend
On 4/24/2012 1:50 PM, Justin Holewinski wrote:
>
> Hi LLVMers,
>
> We at NVIDIA would like to contribute back to the LLVM open-source
> community by up-streaming the NVPTX back-end for LLVM. This back-end
> is based on the sources used by NVIDIA, and currently provides
> significantly more functionality than the current PTX back-end. Some
> functionality is currently
2017 Mar 20
2
-ffast-math optimizations impacted by symbol renaming in header files
Hi,
I came across an issue where some optimizations that would normally be applied to standard math function calls are not getting applied when the –ffast-math option is enabled on the Clang command line on a Linux x86_64 target.
I tracked down the issue to occurring because the –ffast-math option is triggering Clang to preprocess the math.h header file with the __FINITE_MATH_ONLY__ macro set
2012 Aug 02
2
[LLVMdev] Proposal to merge SimplifyLibCalls into InstCombiner
Hi All,
I finally got around to cleaning up my proposal to merge `SimplifyLibCalls`
into `InstCombiner`. There is still an open question or two and I am sure
there are parts that could be better specified, but this is good enough to
discuss. Feedback is most welcome.
Abstract
========
This proposal is an attack plan for PR11895 [1].
Currently within LLVM we have two passes that are used to
2003 Nov 12
1
Power (^) 10x slower in R since version 1.7.1... What next?
OK, I have made a little search about this "problem" that apparently occurs
only on Windows platform... (but I am sure most of you are already aware of
it): the slow down is due to the adoption of a different algorithm for pow
in mingw 3.x. This is motivated by some other changes in mingw. Here is a
quote of Danny Smith that did this change:
>When mingw changed default FPU settings
2011 May 21
0
Problem with ANOVA repeated measures: "Error() model is singular"
Hello everybody,
I need an help because I don´t know if the command for the ANOVA analysis I am
performing in R is correct. Indeed using the function aov I get the following error:"In aov (......) Error() model is singular"
The structure of my table is the following: subject, stimulus, condition, sex, response
Example:
subject stimulus condition sex response
2006 May 28
1
problems while correlating values
Hi,
I am a newbie to the world of R.
I have a data converted in csv format. Few cells in
some of the rows of the data are blank ( in the sense
that there is no value available for the particular
experiment). When i try to open the file in R. I get
an warning message.
The specific warning message i get is
{Warning message:
NAs introduced by coercion }
My data more or less looks like this
-
2008 Apr 09
1
If statements for vectors
Dear Sirs,
I am using both the Bioconductor adds on (Affy, AffyPLM,...) and the
'standard' R-package.
I am trying to select a list of genes which all have expression values below
a certain threshold.
I have done this by creating a vector which has 0s where the expression is
greater than the threshold and 1s where it is less than or equal to it.
Multiplying this vector by the expression
2018 Feb 05
0
Cross-compiling libc++ to linux-armv7hf gives undefined symbols in cmath / math.h
Hello,
I am trying to cross-compile libc++ from my x86_64 linux system to armv7hf.
We have our own gcc compiler that we build with crosstools-ng (based on gcc
6.3.0) and I set my environment like this:
CC=armv7a-plex-linux-gnueabihf-gcc
CXX=armv7a-plex-linux-gnueabihf-g++
CFLAGS=-fPIC -DPIC -mfloat-abi=hard -march=armv7-a -Os -mfpu=vfpv3-d16
--sysroot=<path>
CXXFLAGS=-fPIC -DPIC