Displaying 20 results from an estimated 9000 matches similar to: "[LLVMdev] Conditions that cause Clang refuse inlining a function"
2014 Sep 04
2
[LLVMdev] Conditions that cause Clang refuse inlining a function
Hi Anton,
Thanks for the answer.
The link you provided doesn't answer the question. It lists the ways to
overcome the linking error if the inline was not successful.
The only condition that is found there to make the compiler not inline is "when
compiling without optimization".
I asked the question in the forum because I think that this info is not
documented and most chances that
2010 Oct 24
4
[LLVMdev] Inlining in LLVM
Duncan:
I am only superficially familiar with LLVM structure.
What I am trying to find out is if functions that have a single invocation
are still found in the code during the compilation.
In Open64 and other compilers, there is an early inlining pass that inlines
all procedures that have a single invocation site. The reasoning is that if
there is a single call to a procedure, then there is not
2015 Dec 21
2
MSVC warning noise on "LLVM_ATTRIBUTE_ALWAYS_INLINE inline void foo()"
On Mon, Dec 21, 2015 at 12:08 AM, Aaron Ballman <aaron at aaronballman.com>
wrote:
> On Sun, Dec 20, 2015 at 5:57 PM, Johan Engelen <jbc.engelen at gmail.com>
> wrote:
> >
> > Perhaps LLVM_ATTRIBUTE_ALWAYS_INLINE could be defined to "inline" if the
> > compiler has no support for always_inline (currently it is set to
> nothing in
> > that
2007 Oct 01
4
Disentagling formulas
I am writing a program in which I would like to take in a formula, change the response (Y) variable into something else, and then pass the formula, with the new Y variable to another function. That is, I am starting with
formula <- Y~X1+X2+X3
and I'd like to do something like
Y <- formula$Y
newY <- f(Y)
lm(newY~X1+X2+X3)
So far, it seems that my
2014 Aug 05
2
[LLVMdev] Prevent clang from replacing code with library calls
Hi Jim,
I have tried "-fno-builtin" but it didn't help.
Thanks,
David
On Tue, Aug 5, 2014 at 12:12 AM, Jim Grosbach <grosbach at apple.com> wrote:
> Hi David,
>
> "-fno-builtin” is probably what you want.
>
> -Jim
>
> On Aug 4, 2014, at 2:19 AM, David Sela <sela.david at gmail.com> wrote:
>
> Clang optimizes code by replacing some parts
[LLVMdev] Help with LLVM Bitcode function inlining and duplicating debug information on instructions
2013 Aug 30
1
[LLVMdev] Help with LLVM Bitcode function inlining and duplicating debug information on instructions
Hi,
I'm working on a tool (KLEE) that interprets LLVM bitcode.
One of the things it does is it instruments the LLVM bitcode with
checks for division by zero. It does this by injecting calls to a
function "klee_div_zero_check(long long divisor)" just before every
division instruction (e.g. SDiv). These checks are injected by a pass
that has been implemented in KLEE.
This
2009 Jun 25
2
Problems with subsets in NLME
I am trying to estimate models with subsets using the NLME package. However, I am getting an error in the case below (among others):
> subset <- c(rep(TRUE, 107), FALSE)
> fm2 <- lme(distance ~ age + Sex, data = Orthodont, random = ~ 1, subset=subset)
Error in xj[i] : invalid subscript type 'closure'
> fm2 <- lme(distance ~ age + Sex, data = Orthodont, random = ~ 1,
2009 May 06
2
NLMINB() produces NaN!
I am having the same problem as one Rebecca Sela(see bellow).
On 21/12/2007 12:07 AM, Rebecca Sela wrote:
>* I am trying to optimize a likelihood function using NLMINB. After running without a problem for quite a few iterations (enough that my intermediate output extends further than I can scroll back), it tries a vector of parameter values NaN. This has happened with multiple Monte Carlo
2015 Aug 21
4
[RFC] AlwaysInline codegen
Hi,
There is a problem with the handling of alwaysinline functions in
Clang: they are not always inlined. AFAIK, this may only happen when
the caller is in the dead code, but then we don't always successfully
remove all dead code.
Because of this, we may end up emitting an undefined reference for an
"inline __attribute__((always_inline))" function. Libc++ relies on the
compiler
2014 Aug 04
2
[LLVMdev] Prevent clang from replacing code with library calls
Clang optimizes code by replacing some parts with efficient library
functions.
For example the following code:
for (i=0;i<size;++i)
dest[i]=src[i];
will be compiled to (target=ARM assembly):
bl __aeabi_memcpy(PLT)
The compile cmd:
/usr/share/android-arm-l14-toolchain/bin/clang31 -cc1 -triple
arm-none-linux-androideabi -S -target-abi aapcs-linux -target-cpu arm1022e
2009 May 13
3
Checking a (new) package - examples require other package functions
I am creating an R package. I ran R CMD check on the package, and everything passed until it tried to run the examples. Then, the result was:
* checking examples ... ERROR
Running examples in REEMtree-Ex.R failed.
The error most likely occurred in:
> ### * AutoCorrelationLRtest
>
> flush(stderr()); flush(stdout())
>
> ### Name: AutoCorrelationLRtest
> ### Title: Test for
2015 Aug 21
2
[cfe-dev] [RFC] AlwaysInline codegen
On Thu, Aug 20, 2015 at 7:17 PM, John McCall <rjmccall at apple.com> wrote:
> > On Aug 20, 2015, at 5:19 PM, Evgenii Stepanov via cfe-dev <
> cfe-dev at lists.llvm.org> wrote:
> > Hi,
> >
> > There is a problem with the handling of alwaysinline functions in
> > Clang: they are not always inlined. AFAIK, this may only happen when
> > the caller is
2009 Jul 08
2
\dQuote in packages
I am in the process of submitting a package to CRAN. R CMD check ran successfully on the package on my local computer, using R version 2.1.1. However, on the computers for CRAN (with version 2.10.0), the following errors occurred:
Warning in parse_Rd("./man/predict.Rd", encoding = "unknown") :
./man/predict.Rd:28: unknown macro '\dquote'
*** error on file
2019 Nov 04
3
Fix clang's 'flatten' function attribute: add depth to always_inline?
Hi everyone,
clang currently implements the 'flatten' function attribute by marking
all calls to not 'noinline' functions with 'always_inline'. In effect,
only the first level of calls is inlined, not all calls recursively
(like gcc does).
We briefly discussed possible solutions on IRC:
We could add an equivalent LLVM attribute for functions (e.g.
'flatten'). The
2020 Jan 04
3
Connecting a VM to an existing OVS bridge
Hi,
I have an existing OVS bridge, that I can see in ovs-vsctl and use
for other purposes.
I've edited the machine's XML as instructed in
http://docs.openvswitch.org/en/latest/howto/libvirt/
When I try to start the VM, i get
error: Cannot get interface MTU on 'ovsbr': No such device
Any ideas?
(Note: I can't see the ovs switch in brctl show or any other regular
kernel tool,
2008 Aug 22
10
[LLVMdev] Proposal : Function Notes
Here is a proposal that I mentioned sometime ago. Any
thoughts,comments or
suggestions on this proposal would be appreciated.
-
Devang
//
=
=
=----------------------------------------------------------------------
===//
// Function Notes (or Traits)
//
=
=
=----------------------------------------------------------------------
===//
This document describes the
2016 Dec 15
6
distinct DISubprograms hindering sharing inlined subprogram descriptions
Branching off from a discussion of improvements to DIGlobalVariable
representations that Adrian's working on - got me thinking about related
changes that have already been made to DISubprogram.
To reduce duplicate debug info when things like linkonce_odr functions were
deduplicated in LTO linking, the relationship between a CU and DISubprogram
was inverted (instead of a CU maintaining a list
2010 Jul 27
2
[LLVMdev] inline callsites whose function definitions are in different file?
LLVM (2.7 release version) provides 2 implementations for inlining
function callsites:
- InlineSimple.cpp (-inline): inline simple callsites
according to its cost analysis
- InlineAlways.cpp (-always-inline): inline all callsites that are
marked with "always_inline" attribute.
They are both subclasses of Inline.cpp that assumes the function's
definition (body) is
2020 Jun 13
2
target-features attribute prevents inlining?
Thank you so much David! After thinking a bit more I agree with you that
attempting to add 'target-features' to my functions seem to be the safest
approach of all.
I noticed that if I mark the clang++ function as 'AlwaysInline', the
inlining is performed normally. Is this a potential bug, given what you
said that LLVM may accidentally move code using advanced cpu features
outside
2016 Jul 13
3
[cfe-dev] [RFC] __attribute__((internal_linkage))
Hi Evgenii,
I have one question about this (planned) change: what if a function is not inlined? The linker will not ODR merge them with this change, which isn’t great.
What makes “internal” linkage more desirable than "linkonce_odr + visibility hidden"?
—
Mehdi
> On Jul 12, 2016, at 6:16 PM, Evgenii Stepanov via llvm-dev <llvm-dev at lists.llvm.org> wrote:
>
> Hi,