similar to: [LLVMdev] [DRAFT] Announcement for LLVM 1.6 [DRAFT]

The vector LLVA extension will not be merged into the 1.6 release branch? It will make me have to merge twice: one for 1.6 and one for vector LLVA. When do you plan to merge the vector LLVA to the main trunk, please? On 26/10/05, Chris Lattner <sabre at nondot.org> wrote: > > Hi All, > > I'm putting together the announcement for the LLVM 1.6 release. Here is > what I

Hi Everyone, LLVM 1.6 is out! Get it here: http://llvm.org/releases/ or read about it here: http://llvm.org/releases/1.6/docs/ReleaseNotes.html#whatsnew This release is the culmination of a ton of great work by many people in the LLVM community. This release cycle has been much longer than any previous release cycle, and reflects that in its content. However, because we think that 3-4

Hi Everyone, Here are my notes on the LLVM 1.7 release, which will go into the final release announcement. As Tanya mentioned, it has been far too long since the last release, and there have been a lot of CVS commits since Novemeber. :) I went through them all and pulled out some of the major improvements, which I've listed below. I'm certain that I have forgotten some things, so

Feedback below.. > <will insert overview blurb here> Big new things: llvm-gcc4, new sparc > backend, Generic vector/SSE/Altivec support, X86 Scalar SSE support, > debugging support, many target-independent codegen improvements, inline asm, > llvm.org/web-reg. > > > Core LLVM IR Improvements: > > * The LLVM IR now has full support for representing

On Mon, 2005-09-05 at 14:45 +0800, Tzu-Chien Chiu wrote: > why there is no general dependency analysis for the "machin code"? > perhaps it's because the instruction scheduling is only implemented > for sparcv9? Most backends use the SelectionDAG infastructure to do this kind of thing. (Simplifying things a bit) Each basic block is selected to a DAG based IR. Then

why there is no general dependency analysis for the "machin code"? perhaps it's because the instruction scheduling is only implemented for sparcv9? i am going to implement a dependency analysis pass for machine code block. the result will be returned in a boost graph (http://www.boost.org/libs/graph/doc/table_of_contents.html). just to check if it has already been implemented. it

Hi All, Here are my notes for the LLVM 1.8 release, please send me feedback :). I'm sure I've forgotten and overlooked something, if so, please let me know! <Note: we're back to 3-month release cycle: yay!> ----- 8< ----- 8< ----- High Level Changes: *. Jim has finished enough support for DWARF debugging information that it is now enabled by default in

What's the difference between the pattern and the dag2dag instruction selectors? It seems that the pattern selector does not preserve the original dag but the dag2dag one does. Is this done so that scheduling/other opts can be performed more easily in the generated machine code? Thanks, -- Alkis -------------- next part -------------- An HTML attachment was scrubbed... URL:

Dear all: To write a compiler for Microsoft Direct3D shaders from our hardware, I have a program which translates the Direct3D shader assembly to LLVM assembly. I added several intrinsics for this purpose. It's a vector ISA and has some special instructions like: * rcp (reciprocal) * frc (the fractional portion of each input component) * dp4 (dot product) * exp (exponential) * max, min These

Hello! I have been looking at the LLVM project for quite a bit but I was wondering if there are any implication of using the project in a commercial enviroment in terms of licensing restrictions and other related issues, are there other people that use LLVM in a commecial enviroment? Regards Jonas Gustavsson

Hi, I've been studying the global instruction selector introduced recently. One of the properties of global instruction selectors is that they select instructions across basic blocks such that they can get more information in order to choose optimal patterns. However, the current global isel implementation still iterates over BBs within functions, which is same as the original SelectionDAG

I cannot understand what does the paragraph mean. Could anyone please elaborate it? http://llvm.cs.uiuc.edu/ChrisLLVM/docs/CodeGenerator.html#selectiondag_legalize "Instead of using a Legalize pass, we could require that every target-specific selector supports and expands every operator and type even if they are not supported and may require many instructions to implement (in fact, this is

On Tue, Jan 31, 2017 at 7:12 AM, Bekket McClane via llvm-dev <llvm-dev at lists.llvm.org> wrote: > Hi, > I've been studying the global instruction selector introduced recently. One > of the properties of global instruction selectors is that they select > instructions across basic blocks such that they can get more information in > order to choose optimal patterns. >

PHI nodes within machine code were originally used by the Sparc back-end but they turned out not to be necessary. Instead, LLVM phis are lowered to copy instructions in the machine code (I believe this happens just after instruction selection). As far as I know, the machine PHI nodes are not used by the x86 back-end and you shouldn't need them if you insert the right copies. --Vikram

Thanks, I think it can solve my problem. But please allow me to explain the hardware in detail. Hope there is more elegant way to solve it. The hardware is a "stream processor". That is, It processes samples one by one. Each sample is associated with several 128-bit four-element vector registers, namely: * input registers - the attributes of the sample, the values of the registers

Hi everyone, llvm is great! But there is one exception ;) llvm components are generally fast, but instruction selection is slooow. Let me explain. I am developing a toolkit for building virtual machines which can automatically generate a JIT compiler using the interpreter specification. llvm does the hard work of machine code generation. (Thanks to you all) I discovered that JIT compilation is

Hi Evan > > It looks > > like that the instruction selector operates on actual DAGs, no > > unDAGing to > > trees seems to occur at any point. > Instruction scheduler is responsible for turning a DAG into a list of > instructions. So unDAGing is applied by the instruction scheduler. At which points in the compilation flow is the instruction scheduler run (i'm

Hi there first of all, many thanks to some people out there for their advice on building LLVM on Cygwin (this would be Aaron Gray, Reid Spencer, Tanya and Chris Lattner i suppose). LLVM 2.1 seems to build in debug mode on my "old" Cygwin (1.5.15). At least everything except tblgen is build. For tblgen i use the supplied mingw binaries, many thanks for that! I would like now to ask you

On Wed, Feb 15, 2006 at 02:53:05AM +0100, Jonas Gustavsson wrote: > I have been looking at the LLVM project for quite a bit but I was > wondering if there are any implication of using the project in a > commercial enviroment in terms of licensing restrictions and other > related issues, are there other people that use LLVM in a commecial > enviroment? LLVM's license is a

On Thu, 15 Dec 2005, Tzu-Chien Chiu wrote: > To write a compiler for Microsoft Direct3D shaders from our hardware, > I have a program which translates the Direct3D shader assembly to LLVM > assembly. I added several intrinsics for this purpose. > It's a vector ISA and has some special instructions like: > * rcp (reciprocal) > * frc (the fractional portion of each input