similar to: constrained cosine rounding mode behavior

Hi Craig: I tried that, now the function is like this: ; Function Attrs: norecurse nounwind readnone ssp uwtable define { double, double } @add(double, double, double, double) local_unnamed_addr #0 {   %5 = call double @llvm.experimental.constrained.fadd(double %0, double %2, metadata !"round.downward", metadata !"fpexcept.ignore")   %6 = fadd double %1, %3

Hi: Sorry I need to send email directly. I am new to llvm and trying to write interval arithmetic, which requires changing rounding mode during computation. The document I found https://llvm.org/docs/LangRef.html#constrained-floating-point-intrinsics, seems to be doing the trick. Here is the piece of code that I did:

Hi Craig: It’s llvm 10.1 I think, I did the same thing, removing everything except the code block but still failed with llvm-as. Thank you Xuan Tang On Sep 3, 2020, 20:14 -0500, Craig Topper <craig.topper at gmail.com>, wrote: > I just pasted that code and ran it through llc, opt, and llvm-as. All passed without issue. What version of llvm are you using? > > ~Craig > > >

I've recently been looking at how to implement in LLVM IR the rounding of floating point values when casting using different rounding modes and I've hit some problems. It seems that when casting down floats to less precise types the ``fptrunc`` LLVM IR instruction is used. The LLVM language reference suggests that it just truncates the value (which would be equivalent to rounding towards

We really have been trying to keep in mind that LLVM needs to support multiple front ends, which may be implementing different language standards. As much as possible, I’ve been trying to let the IEEE 754 spec drive my thinking about this, though I’ll admit that on a few points I’ve use the C99 spec as a sort of reference interpretation of IEEE 754. LLVM’s IRBuilder has been recently updated to

Howdy all, I've been playing around with programs that use the C11 fenv.h. It seems that, currently, the LLVM compiler does not regard to the exception-flag side-effects of floating point operations? When run on my macbook, the example code on http://en.cppreference.com/w/c/numeric/fenv/FE_exceptions does not print all the expected exceptions. Other examples: void foo() {

Let me clarify. These aren’t intended to be exposed to the user. The user code that leads to the generation of these intrinsics will be normal floating point operations combined with either pragmas (such as “STDC FENV_ACCESS ON”) or command line options (such as the recently introduced “-fp-model=strict”). The reason I’ve been avoiding normal constant values is that it provides no information when

On 10/03, Kaylor, Andrew via llvm-dev wrote: > I’d like to emphasize that the constrained intrinsics prevent > optimizations *by default*. We have a plan to go back and teach > individual optimizations how to handle these intrinsics. The idea is > that if an optimization knows nothing about the constrained intrinsics > then it won’t try to transform them, but if an optimization has

Copying the list on a discussion of potentially general interest.... From: Kaylor, Andrew Sent: Friday, November 03, 2017 1:11 PM To: 'Ding, Wei' <Wei.Ding2 at amd.com>; Sumner, Brian <Brian.Sumner at amd.com>; Arsenault, Matthew <Matthew.Arsenault at amd.com> Subject: RE: clarification needed for the constrained fp implementation. Hi Wei, I've been meaning to

I'm in teaching mode, kernel densities. {History: density() was newly introduced in version 0.15, 19 Dec 1996; most probably by Ross or Robert } When I was telling the students about different kernels (and why their choice is not so important, and "equivalent bandwidths" etc,etc) I wondered about the "Cosine" in my teaching notes which is defined there as k(x)

Hello, a. is there a possibility to obtain a distance matrix with the cosine between vectors?? hclust, hierclust, dist will not work and seem to be hard to extend. b. if there is not: Is the cosine between vectors implemented somewhere? Thanks for all hints and advice! Petra Steiner -------------- next part -------------- An HTML attachment was scrubbed... URL:

does anybody have a suggestion as to how to use R to fit some date to a cosine function and then have some output statistics that will evaluate the fit? -- View this message in context: http://r.789695.n4.nabble.com/cosine-curve-fit-tp4650866.html Sent from the R help mailing list archive at Nabble.com.

Hi R users, I have a question about fitting a cosine curve. I don't know how to set the approximate starting values. Besides, does the method work for sine curve as well? Thanks. Part of the dataset is in the following: y=c(16.82, 16.72, 16.63, 16.47, 16.84, 16.25, 16.15, 16.83, 17.41, 17.67, 17.62, 17.81, 17.91, 17.85, 17.70, 17.67, 17.45, 17.58, 16.99, 17.10) t=c(7, 37, 58, 79, 96,

Hi everybody! I have intended to use library(lsa) on R 64-bits for Windows but it was not possible. Every time I try to launch library(lsa) function R give me back next message: Loading required package: SnowballError : .onLoad failed in loadNamespace() for 'Snowball', details: call: NULL error: .onLoad failed in loadNamespace() for 'rJava', details: call: stop("No

Hi lily, You can get fairly good starting values just by eyeballing the curves: plot(y) lines(supsmu(1:20,y)) lines(0.6*cos((1:20)/3+0.6*pi)+17.2) Jim On Wed, Jun 21, 2017 at 9:17 AM, lily li <chocold12 at gmail.com> wrote: > Hi R users, > > I have a question about fitting a cosine curve. I don't know how to set the > approximate starting values. Besides, does the method

On Tue, 26 Mar 2024 02:57:51 +0100 Franta Hanzl?k via samba <samba at lists.samba.org> wrote: > Please, it is possible (perhaps with some Samba schema extension?) to > have items as 'c' (countryName), 'l' (localityName), 'l' > (localityName), 'co' (friendlyCountryName), 'street' (streetAddress), > 'displayName' etc. in the

Hi, this is an RFC for optional, named parameter tuples for intrinsics. The proposed syntax is: %z = call @llvm.some.intrinsic(%a, %b) optional_tuple(%x, %y, %z) where from the perspective of the call site %x, %y and %z are simply additional parameters. Optional parameter tuples would be very useful for constrained fp intrinsics and vector predication. Some examples: ; Default fpenv fadd

Hello everyone, I've just uploaded a patch (https://reviews.llvm.org/D70261) to introduce a could of new token types to be used with constrained floating point intrinsics and, optionally, vector predicated intrinsics. These intrinsics may not be of interest to many of you, but I have a more general question. I would like some general feedback on the way I am proposing to use token arguments

On 11/03/2017 05:26 PM, 陳韋任 via llvm-dev wrote: > > > 2017-11-04 4:29 GMT+08:00 Kaylor, Andrew via llvm-dev > <llvm-dev at lists.llvm.org <mailto:llvm-dev at lists.llvm.org>>: > > Copying the list on a discussion of potentially general interest…. > > *From:* Kaylor, Andrew > *Sent:* Friday, November 03, 2017 1:11 PM > *To:* 'Ding,

Hi, All: I had some trouble debugging C source dynamically loaded into R , when I issued N in gdb(or insight) , the debugger, instead of moving downward step by step, jumped to strange positions (upward, downward, one step, a few steps away). To enter the debugger, I issued gdb(insight) Rgui.exe in Cygwin and add this line : asm("int $3"); to my C code. After entering R, I