Displaying 20 results from an estimated 20000 matches similar to: "[LLVMdev] is there any passes or compiling options that can aviod to generate vector instructions and 'select' instruction in IR"
2013 Apr 15
0
[LLVMdev] is there any passes or compiling options that can aviod to generate vector instructions and 'select' instruction in IR
Hi,
> is there any passes or compiling options that can aviod to generate vector
> instructions and 'select' instruction in IR.
> i think that these instructions can be replaced with other instructions in
> LLVM IR. So if there is a way to eliminate these instructions during
> compilation?
you can avoid having optimizers create vector instructions by not running
the
2013 Apr 14
1
[LLVMdev] llvm 'select' instruction
hi Sam:
thank you for your reply.
but i have another question about this 'select' instruction.
i think that in LLVM IR, i can use a branch and two seperate assignments to
replace 'select' instruction(am i right?).
so is there any compiling option to aviod generate 'select' instruction?
--
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2013 Apr 14
1
[LLVMdev] llvm 'select' instruction
hi Clemens Hammacher:
thank you for your helpful answer.
but i have another question about this 'select' instruction.
i think that in LLVM IR, i can use a branch and two seperate assignments to
replace 'select' instruction(am i right?).
so is there any compiling option to aviod generate 'select' instruction?
--
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2013 Apr 14
8
[LLVMdev] llvm 'select' instruction
hello guys:
i am thinking about what kind of C instructions can turn into llvm IR
'select' instruction.
i tried "d=a?b:c" and compiled it using clang, i still didn't get 'select'
is there anybody who knows this?
thank you
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2013 Apr 14
0
[LLVMdev] llvm 'select' instruction
Hi Dong,
try turning optimizations on. I get the select then:
> └─[$]› echo 'int min(int a, int b) { return a < b ? a : b; }' | clang -xc -O1 -S -emit-llvm -o - -
> ; ModuleID = '-'
> target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
>
2013 Apr 14
0
[LLVMdev] llvm 'select' instruction
On 04/14/2013 02:17 PM, Dong Chen wrote:
> hello guys:
> i am thinking about what kind of C instructions can turn into llvm IR
> 'select' instruction.
> i tried "d=a?b:c" and compiled it using clang, i still didn't get 'select'
> is there anybody who knows this?
> thank you
Did you try to compile this with optimization enabled? (at least -O1)
For
2013 Apr 14
0
[LLVMdev] llvm 'select' instruction
Hi,
If you run the simplify-cfg pass, select instructions should get generated.
Regards,
Sam
On 14/04/2013 14:17, Dong Chen wrote:
> hello guys:
> i am thinking about what kind of C instructions can turn into llvm IR
> 'select' instruction.
> i tried "d=a?b:c" and compiled it using clang, i still didn't get 'select'
> is there anybody who knows this?
2004 Jan 09
2
Problem with internal traffic
Have 4 harddrives hde,hdg etc all of these drives are mounted in samba. When i copy file from one drive to another i notice that server sends the file to my computer and then back to itself (into the right place). The file will be copied but doing so it will eat half of my network bandwith.
Is it possible to aviod this?
Best Regards
Patrick Betfjord
1999 Sep 07
2
weird printing problems.
I'm experiencing some weird printing problems with samba connected
printers. When I'll bring up a 95/98 workstation, sometimes it will say
that the printer is offline, when it clearly isn't, or it will see
everything fine, but it simply won't print.
These are remote lpd connected printer to the samba server, and lpd can
print fine. These are JetDirect HP printers.
Any
2009 May 14
2
I want to avioid unnecessary value
I have a database like this:
"kol1";"kol2";"kol3" ...
"2";"5";"9"
"9";"6";"6"
"4";"6";"5"...
I looking for a kod in R which let mi aviod in column unnecessary value, for
example number "9".
So, if I have:
Kol1
2
9
4
4...
after loop in R I would like to get my
2002 Aug 02
1
avoiding "for()" loops: a question?
I have read in several places that one should attempt to avoid for loops
whenever possible. In this spirit, I was playing with some code that I have
written to improve its efficiency and elegance.
The following iteratively drops a column from a data frame and applies a
function to the reminaing columns. I replaced this for loop:
for (y in 1:dim(x)[2]) my.function (x[,-y])
with this:
2010 Aug 21
2
t.tests on a data.frame using an apply-type function
I have a data.frame with ~250 observations (rows) in each of ~50
categories (columns). I would like to perform t.tests on subsets of
observations within each column, with the subsets according to index
vectors contained in other columns of the data.frame.
My data.frame looks something like this:
x<-data.frame(matrix(rnorm(200,mean=5,sd=.5),nrow=20))
colnames(x)<-c("site",
2013 Apr 09
3
[LLVMdev] get the identifies of the unnamed temporaries from the instruction of LLVM IR
hi, Duncan,
thank you for your reply;
instruction "i->getOperand(0)->dump()" may print the %4 in the screen, but
how can i store it in a variable like char * oprand="%4" ?
--
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2012 Mar 29
1
[LLVMdev] Problem recognizing nested select operations
Hello all,
I just noticed that LLVM has trouble recognizing nested simple select
operations.
My testcase is as follows:
-------------------------- snip ------------------------------
#include <stdio.h>
int main(int argc, char **argv)
{
int a;
scanf("%d", &a);
a = a > 255 ? 255 : a < 0 ? 0 : a;
printf("A: %d\n", a);
return 0;
}
2006 Jul 10
6
Gruff: Display label vertical
Hi,
I have stacked Bar graph which has about 20-30 items. I have to name
each of these items. But there names/labels are overlapping. Is there
any option to make the labels display vertical instead of horizontal?
Any other ideas how can I aviod this overlapping?
Please suggest.
Thanks
--
Posted via http://www.ruby-forum.com/.
2013 Apr 14
0
[LLVMdev] llvm 'select' instruction
Something like this should do the job (taken from a test file from the
libbeauty decompiler project):
/* A very simple jump table. */
int test58(int var1) {
int n = 0;
switch (var1) {
case 1:
n = 1;
break;
case 2:
n = 2;
break;
case 3:
n = 3;
break;
case
2019 Jul 08
2
Problem with the LLVM v8.0 IR 'select' instruction
Hi again,
It is probably me doing something wrong, but I have attached a trimmed down
sample that shows the issue and the output that Clang 8.0.0 makes (using
the binary release from llvm.org).
I invoke clang as follows: clang -S -O3 -o Evergrowing.s -Wall
Evergrowing.ll
I tried using -O1, -O2, and -O3, but all where the same. Please notice
that I renamed 'main()' to
2013 Apr 09
0
[LLVMdev] get the identifies of the unnamed temporaries from the instruction of LLVM IR
On Tue, Apr 9, 2013 at 12:47 PM, Dong Chen <jameschennerd at gmail.com> wrote:
> hi, Duncan,
> thank you for your reply;
> instruction "i->getOperand(0)->dump()" may print the %4 in the screen, but
> how can i store it in a variable like char * oprand="%4" ?
>
>
2018 May 08
0
Is there any relationship between IR instruction and execution time
Hello,
As is known to all, there is a relationship between program's instructions
and its execution time. In other words, we can estimate the execution time
based on the number of program instructions.
I'm curious about what the relationship between IR instruction and
execution time. I know the number of program instructions and the execution
time is highly related to the platform and
2006 Apr 06
4
weighted kernel density estimate
Dear R-users,
I intend to do a spatial analysis on the genetic structuring within a
population. For this I had thought to prepare a kernel density estimate
map showing the spatial distribution of individuals, while incorporating
the genetic distances among individuals. I have a dataset of locations
of N unique individuals (XY-coordinates) and an NxN matrix with the
genetic distances given as a