similar to: [LLVMdev] n-bit bytes for clang/llvm

> It's definitely doable, but I'd be worried about the maintenance burden. Yes, that is a problem. We are currently not allowed to reveal our target (which has 16-bit bytes, and registers with non-power-of-two bit widths) fully, and therefore not able to submit it upstream. One idea we have toyed with is to create a simple "dummy" version of our target, just to be able

On 17 Mar 2015, at 13:11, Tyro Software <softwaretyro at gmail.com> wrote: > > As an alternative to fixing the "char == 8 bits" presumption would using non-uniform pointer types have been another possible approach, e.g. keep char as 8 bit but have char* encode both the word address and the byte location within it (i.e. one extra bit in this 16-bit case). Of course this is

Hello LLVM Community, I'm working on some analyzer\checker and want to implement checker for variables. In that case, I want to retrieve some information about types of variables or identify that the variable is either string or not. As an example, for strings which can be char or string type I came up with a solution to find it out via isString or isCString methods. But for strings whose

I'll ask again that question. Thank you Adrian, I've looked through IR Verifier and it helps me to understand some parts of retrieving metadata and debug info. But , after that, I've faced with another problem: Original Code: std::wcout << L"WCHAR_HELLOWORLD" << std::endl;b IR Code: @.str.2 = private unnamed_addr constant [17 x i32] [i32 87, i32 67, i32 72,

Hi, I have a Type * which may come from an IntegerType as shown below: Type.getIntegerBitWidth() tells me numBits. But how to extract the IntegerType.getSignBit? If pType isIntegerType, I need to know if it is signed or unsigned... How to achieve this? Thx Alex llvm::Type * getRandomValid_IntegerType(llvm::LLVMContext &C) { using namespace llvm; //--- determine num of bits

Hi llvm-dev, Our code base has a ancient copy of llvm (ver 3.5.1), and it uses the LLVM code gen for some domain-specific language. The previous dev left a global lock around the usage of LLVM code gen stating that because LLVM code gen can only be accessed single-threaded it needs to be protected with this global lock. But now this lock has caused some perf issues as we pretty much lose

Trying to print out a simple database grid, using, with column headers such as ''SunToSatRoles'', ''PrimaryRoles'', etcetera. Iterating through an object @List which is populated thusly @list = mymodel.find(:all, :order => mymodel.editlist_order) When I do something like <table> <% for i in @list %> <tr> <td><%= i.inspect

The initial proposal to include AAP in LLVM met with some concern that it would be actively maintained (thread from http://lists.llvm.org/pipermail/llvm-dev/2016-August/103807.html ), and after some review activity seemingly went quiet (although review code has been updated quite recently). Is AAP likely to land any time soon? Also an AAP architecture question (possibly the wrong forum, though

Thank you Johannes, I looked it up and it seems that we're creating one LLVMContext per compilation "unit", not sure if that matters. i.e. there's no single globally shared LLVMContext object. Is LLVMContext *the* concurrency isolation (or unit) here? On Wed, Apr 3, 2019 at 6:34 PM Doerfert, Johannes <jdoerfert at anl.gov> wrote: > Do you use one llvm context or one

R community, As you may know, R's iconv doesn't work well converting to and from encodings that allow embedded nulls. For example > iconv("foo", to="UTF-16") Error in iconv("foo", to = "UTF-16") : embedded nul in string: '\xff\xfef\0o\0o\0' However, I don't believe embedded nulls are at issue here, but rather that R's iconv

Hello, I'm trying to fetch a data frame through the C API, and have no problem doing this when all columns are numbers, but when there is a column of strings I have a problem. On the C-side the function looks like: SEXP myfunc(SEXP df), and it is called with a dataframe from the R side with: .Call("myfunc", somedataframe) On the C side (actually C++ side) I use code like this:

Hi All, I am trying to check if a Value type is a int32 pointer by using if(T == Type::getInt1PtrTy(Context, AS)) ... I am trying to understand the AS (address space). How do I get it? Thanks. George * * -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20110606/775e4f09/attachment.html>

Hi Sanjay, 2017-01-30 22:22 GMT+01:00 Sanjay Patel <spatel at rotateright.com>: > My minimal patch idea is to ease the restriction in ShouldChangeType > because i1 is special. I tried the patch below, and it works on the > example...and nothing in 'make check' failed. :) > Yeah, that would work for me as well, I just wasn't sure about the implications that has.

Has anyone written any "cookie" class using prototype? Basically, what I am looking for is if there is an easy way to store mutiple cookies in a single cookie using hash or something - easy writing and retrieval (updating the cookie value). For eg - If I had 25 cookies for my domain 5 of the cookies would either get dropped or not be set (as there is a limit of 20 cookies per domain).

Hi all, I am working on my Master's project in security and I am trying to iterate over the argument list of the function. Basically I need to do following things : 1. Check data type of each argument of the argument list of the function. 2. Based on its data type like character array or integer array, pointer, int, char, take different action. 3. I have added following code to check its

Hello everyone, I am trying to "parse" a part of LLVM IR. More exactly, from @.str = private unnamed_addr constant [3 x i8] c"DS\00", section "llvm.metadata" I want to get "DS". It is the single place in the whole bytecode from where I can get it. I have : ... Value *VV = cast<Value>(LD100->getOperand(1)->getOperand(0));

On 6 June 2011 17:08, George Baah <georgebaah at gmail.com> wrote: > if(T == Type::getInt1PtrTy(Context, AS)) ... Hi, You don't need to care about address spaces to check for an int32*: if (T->isPointerTy()) { const Type* intT = cast<PointerType>(T)->getElementType(); if (intT->isIntegerTy() && intT->getPrimitiveSizeInBits() == 32) cout <<

Hi, I have spotted a minor bug in do_strptime() function. Here is a patch: ?--- a/src/main/datetime.c +++ b/src/main/datetime.c @@ -1048,7 +1048,7 @@ SEXP attribute_hidden do_strptime(SEXP call, SEXP op, SEXP args, SEXP env) if(!isString((x = CAR(args)))) error(_("invalid '%s' argument"), "x"); if(!isString((sformat = CADR(args))) ||

Dear R developers, Motivated by discussion about checking inheritance of S3 and S4 objects (in head matrix/array topic) I would light to shed some light on a minor gap about that matter in R C API. Currently we are able to check inheritance for S3 class objects from C in a robust way (no allocation, thread safe). This is unfortunately not possible for S4 classes. I would kindly request new

On Tue, Jan 31, 2017 at 3:09 AM, Björn Steinbrink <bsteinbr at gmail.com> wrote: > Hi Sanjay, > > 2017-01-30 22:22 GMT+01:00 Sanjay Patel <spatel at rotateright.com>: > >> My minimal patch idea is to ease the restriction in ShouldChangeType >> because i1 is special. I tried the patch below, and it works on the >> example...and nothing in 'make