similar to: [LLVMdev] Formal Definitions

Vijay Daultani wrote: > Respected Sir/Madam, > > As I was developing some part of compiler for a project. I require grammar > (BNF or EBNF) for converting the C code in the IR as it is not been > mentioned any where over your official website. I don't know what you mean by "converting the C code in the IR". Regardless, LLVM does not have BNF or EBNF forms (or any

I am curious how do you guys do it anyways? On Mon, Jul 29, 2013 at 3:27 AM, Nick Lewycky <nicholas at mxc.ca> wrote: > Vijay Daultani wrote: > >> Respected Sir/Madam, >> >> As I was developing some part of compiler for a project. I require grammar >> (BNF or EBNF) for converting the C code in the IR as it is not been >> mentioned any where over your

I recently subscribed and saw in the archive that Eric Astor was asking for a formal grammar (unlikely the first time for such request.) Currently there are a few problems in making such a thing so I was curious if Mr. Gruber has made any thoughts about moving toward one? This would also allow a more ?clean? parser which would get rid of some of the current problems (bad nesting[^1],

Hello Tim, Thank you for getting back to me. The language grammar as defined by the LLVM Language Reference Manual [1] does not include the details of the LLVM IR parser reference implementation. The following extract from "lib/AsmParser/LLParser.cpp" illustrates that unnamed globals are allowed [2]. > /// ParseUnnamedGlobal: > /// OptionalVisibility (ALIAS | IFUNC) ...

Reed, Are you working on a grammar of the LLVM syntax or also on a full semantics? Steve Zdancewic's group at U. Penn. is working on a formal operational semantics for LLVM. It is partially complete and Greg Morrisett at Harvard is planning to build further on it. Regards, --Vikram Professor, Computer Science University of Illinois at Urbana-Champaign http://llvm.org/~vadve On Oct 20,

Respected Sir/Madam, As I was developing some part of compiler for a project. I require grammar (BNF or EBNF) for converting the C code in the IR as it is not been mentioned any where over your official website. Awaiting for your help. Regards, Vijay Daultani. M.Tech student IIT Delhi

Hello! Some CS-guys (the type who knows what Church formalism is) keep asking me questions about formal definitions of R-language that I can not answer (or even understand). Is there some freely available papers which I can throw at them where it would be explained is R functional/OOP/procedural language, does it use weak/strong, dynamic/static typization, does it use lazy or ...(do not know

Seems that Vijay is asking about converting C program to LLVM IR On Mon, Jul 29, 2013 at 9:26 PM, Eli Bendersky <eliben at google.com> wrote: > > > > On Sat, Jul 27, 2013 at 9:02 AM, Vijay Daultani <vijay.daultani at gmail.com>wrote: > >> Respected Sir/Madam, >> >> As I was developing some part of compiler for a project. I require grammar >>

Hi all, I have an idea for a proposal for the summer of code which I think is pretty cool, but I wanted to run it past you all to see what you thought of it first. Basically, the proposal is to use LLVM as a test bed for a more theoretical idea I have. I want to develop a grammar-level way of formally specifying how to translate between two languages. Borrowing from XSLT (a way of transforming

On Sat, Jul 27, 2013 at 9:02 AM, Vijay Daultani <vijay.daultani at gmail.com>wrote: > Respected Sir/Madam, > > As I was developing some part of compiler for a project. I require grammar > (BNF or EBNF) for converting the C code in the IR as it is not been > mentioned any where over your official website. > > Awaiting for your help. > > Hi Vijay, If you are asking

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This commit adds a formal specification of tvdiff_usec and a partial specification of subtract_timeval. These may be proved using Frama-C. The existing functions ignored overflow, but it is possible to call the functions with parameters that will cause overflow. So to create a formal specification I had to modify the functions to signal overflow. Luckily GCC and Clang have convenient

Well you can see that yeast is exactly weekday you have. The way out is to just not name the result toto <- function(mode) { ifelse(mode == 1, function(a,b) a*b, function(u, v, w) (u + v) / w) } ________________________________ From: Grant Izmirlian <izmirlidroid at gmail.com> Date: Sun, Feb 4, 2024, 10:44 AM To: "Izmirlian, Grant (NIH/NCI) [E]"

Hello everyone, While developing a parser for LLVM IR, I seem to have stumbled upon a potential ambiguity in the LLVM IR assembly language grammar. Most likely there is something which I may have overlooked, so wanted to reach out to a more experienced crowed for some feedback. How would the following set of tokens be interpreted [1]? declare void @foo() unnamed_addr global i32 42 As far as

On 04/02/2024 10:55 a.m., Izmirlian, Grant (NIH/NCI) [E] via R-devel wrote: > Well you can see that yeast is exactly weekday you have. The way out is to just not name the result I think something happened to your explanation... > > toto <- function(mode) > { > ifelse(mode == 1, > function(a,b) a*b, > function(u, v, w) (u + v) / w) > } It's

Because functions get called and therefore, the calling sequence matters. It?s just protecting you from yourself, but as someone pointed out, there?s a way to silence such notes. G From: Herv? Pag?s <hpages.on.github at gmail.com> Sent: Tuesday, February 6, 2024 2:40 PM To: Izmirlian, Grant (NIH/NCI) [E] <izmirlig at mail.nih.gov>; Duncan Murdoch <murdoch.duncan at gmail.com>;

Thanks. Workarounds are interesting but... what's the point of the NOTE in the first place? H. On 2/4/24 09:07, Duncan Murdoch wrote: > On 04/02/2024 10:55 a.m., Izmirlian, Grant (NIH/NCI) [E] via R-devel > wrote: >> Well you can see that yeast is exactly weekday you have.? The way out >> is to just not name the result > > I think something happened to your

Here's a dummy example that I think illustrates the problem: toto <- function() { if (runif(1) < 0.5) function(a) a else function(a,b) a+b } > fcn <- toto() > fcn(1,2) [1] 3 > fcn <- toto() > fcn(1,2) [1] 3 > fcn <- toto() > fcn(1,2) Error in fcn(1, 2) : unused argument (2) How can you use the returned function, if you get different arguments?

There's been a lot of discussion on this list about creating a formal grammar for markdown. I had a go at writing a [parsing expression grammar] for markdown. I used Haskell and John Meacham's Frisby PEG parsing library, but it should not be too hard to port the grammar to PEG libraries in other languages. [parsing expression grammar]:

In a recent talk ('Visions of the Past, Present & Future of Statistical Graphics'), I talked about, among other things, the lessons Minard's March on Moscow graphic had for modern statistical graphics, and illustrated aspects of power and simplicity in several programming languages where this graphic had been recreated. I referred to 'elegance factors' of various