similar to: [LLVMdev] what is "intrinsic"?

Hi,all. I've been reading the llvm source code for some days. Here is my problem: what does instrinsic / intrinsic function really means? Are these "the function belong to llvm and just belong to llvm"? Thanks. -------------- next part -------------- An HTML attachment was scrubbed... URL:

On Tue, Oct 9, 2012 at 9:25 PM, Jun Koi <junkoi2004 at gmail.com> wrote: > On Fri, Oct 5, 2012 at 3:45 PM, Jun Koi <junkoi2004 at gmail.com> wrote: >> On Fri, Oct 5, 2012 at 3:39 PM, David Chisnall >> <David.Chisnall at cl.cam.ac.uk> wrote: >>> On 5 Oct 2012, at 08:34, Jun Koi wrote: >>> >>>> any idea on how to fix the problem?

I looked at this briefly, I think it causes some mistakes that get reversed later in fixupReg. The disassembler design is a bit of a mess with regards to prefixes and operand size. On Tue, Apr 1, 2014 at 4:43 PM, Jun Koi <junkoi2004 at gmail.com> wrote: > > > > On Mon, Mar 31, 2014 at 11:48 PM, Jun Koi <junkoi2004 at gmail.com> wrote: > >> Hi, >> >>

currently, there is no (easy) way to set the AssemblerDialect. the only method i am aware of is to set that via cl:opt. this patch fixes that by adding a public function setAssemblerDialect() to class MCAsmInfo. Signed-off-by: Jun Koi <junkoi2004 at gmail.com> diff --git a/include/llvm/MC/MCAsmInfo.h b/include/llvm/MC/MCAsmInfo.h index 97aad71..cd08a7e 100644 ---

On Thu, Jun 26, 2014 at 10:23 AM, Adam Nemet <anemet at apple.com> wrote: > > > On Jun 25, 2014, at 7:05 PM, Jun Koi <junkoi2004 at gmail.com> wrote: > > > > > On Thu, Jun 26, 2014 at 5:47 AM, Adam Nemet <anemet at apple.com> wrote: > >> Hi Jun, >> >> On Jun 25, 2014, at 8:14 AM, Jun Koi <junkoi2004 at gmail.com> wrote: >>

Hi Jun, On 18/10/12 11:19, Jun Koi wrote: > On Tue, Oct 9, 2012 at 9:25 PM, Jun Koi <junkoi2004 at gmail.com> wrote: >> On Fri, Oct 5, 2012 at 3:45 PM, Jun Koi <junkoi2004 at gmail.com> wrote: >>> On Fri, Oct 5, 2012 at 3:39 PM, David Chisnall >>> <David.Chisnall at cl.cam.ac.uk> wrote: >>>> On 5 Oct 2012, at 08:34, Jun Koi wrote:

On Wed, Oct 3, 2012 at 1:19 AM, Jim Grosbach <grosbach at apple.com> wrote: > What's the use case? the use case is that we can print out the assembly using alternative dialect. currently, on Intel machine, the default dialect is AT&T, and we cannot change that to Intel syntax without using cl:opt. the new public method lets us change the dialect without having cl:opt involved.

hi, there are two arrays named DecoderTable32[] and DecoderTable16[] that has no reference to. any idea why they are there? does it make sense to remove them? (this is llvm 3.3) thanks, Jun -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20130823/a95811fb/attachment.html>

> Here is my problem: > what does instrinsic / intrinsic function really means? You probably need to look at http://llvm.org/docs/ExtendingLLVM.html. Simply put, when you want to extend LLVM IR, say adding a new LLVM instruction, you have better try to add a intrinsic function [1] which has the same effect as the instruction you want to add. I don't think they are the same

Hello Daniel, At the moment we are preparing the patch for disassembling microMIPS 16 bit instructions and it will be on Phabricator tomorrow or on Wednesday. Functionality is implemented in MipsDisassembler::getInstruction where first two bytes are read and decodeInstruction is called with DecoderTableMicroMips16 and only if it fails we read 4 bytes and call decodeInstruction with

On Wed, Sep 17, 2014 at 10:14 PM, Simon Atanasyan <simon at atanasyan.com> wrote: > Hi, > > Probably you get the error because you try to build LLVM in the source > code directory. Create a separate folder, cd to this folder and run > the configure script. > > $ mkdir llvm-bld > $ cd llvm-bld > $ ../<llvm src>/configure --enable-targets=mips > $ make >

On Fri, Oct 5, 2012 at 3:39 PM, David Chisnall <David.Chisnall at cl.cam.ac.uk> wrote: > On 5 Oct 2012, at 08:34, Jun Koi wrote: > >> any idea on how to fix the problem? > > The correct solution is to fix the LLVM build to install the .cmake files in a location that CMake knows about. could you please elaborate? > The hacky solution that I've used is just to copy

On Thu, Jun 26, 2014 at 5:47 AM, Adam Nemet <anemet at apple.com> wrote: > Hi Jun, > > On Jun 25, 2014, at 8:14 AM, Jun Koi <junkoi2004 at gmail.com> wrote: > > > Hi, > > > > I am trying to assemble below instruction with latest LLVM code, but > fail. Am I doing something wrong, or is this a bug? > > > > > > $ echo "vaddps zmm7

Hi, In file X86DisassemblerDecoder.c, we have function readPrefixes() with below code: ..... } else if (insn->mode == MODE_32BIT) { insn->registerSize = (hasOpSize ? 2 : 4); insn->addressSize = (hasAdSize ? 2 : 4); insn->displacementSize = (hasAdSize ? 2 : 4); insn->immediateSize = (hasOpSize ? 2 : 4); } .... This is confused to me: so we

On Wed, Dec 24, 2014 at 2:43 PM, Craig Topper <craig.topper at gmail.com> wrote: > I believe this particular error is caused by this. That seems easy enough > to just drop the bit. Do you have other non-mmx examples? > > case TYPE_MM: \ > if (index > 7) \ > *valid = 0;

The IMM3/IMM5 come from here X86RecognizableInstr.cpp 943 TYPE("SSECC", TYPE_IMM3) 944: TYPE("AVXCC", TYPE_IMM5) On Thu, Dec 25, 2014 at 8:22 PM, Jun Koi <junkoi2004 at gmail.com> wrote: > > > On Fri, Dec 26, 2014 at 11:54 AM, Jun Koi <junkoi2004 at gmail.com> wrote: > >> hi, >> >> some instructions

What's the use case? On Oct 1, 2012, at 8:33 PM, Jun Koi <junkoi2004 at gmail.com> wrote: > currently, there is no (easy) way to set the AssemblerDialect. the > only method i am aware of is to set that via cl:opt. > > this patch fixes that by adding a public function > setAssemblerDialect() to class MCAsmInfo. > > Signed-off-by: Jun Koi <junkoi2004 at

On Fri, Oct 5, 2012 at 3:45 PM, Jun Koi <junkoi2004 at gmail.com> wrote: > On Fri, Oct 5, 2012 at 3:39 PM, David Chisnall > <David.Chisnall at cl.cam.ac.uk> wrote: >> On 5 Oct 2012, at 08:34, Jun Koi wrote: >> >>> any idea on how to fix the problem? >> >> The correct solution is to fix the LLVM build to install the .cmake files in a location that

I'll look into it, thanks for the report. On Thu, Jul 30, 2015 at 11:01 PM, Jun Koi <junkoi2004 at gmail.com> wrote: > Any ideas on this bug? > > Thanks. > > > On Wed, Jul 29, 2015 at 12:17 AM, Jun Koi <junkoi2004 at gmail.com> wrote: > >> Hello, >> >> There is an issue in the latest Sparc code: while we can encode POPC, >> decode

hi, i am trying to optimize the below code, in one of my LLVM functions: .... store i32 96, i32* @XXX, align 4 ; (1) store i32 117, i32* @yyy, align 4 ; (2) store i32 31, i32* @XXX, align 4 ; (3) .... naturally, optimize passes should remove the line (1), because later line (3) overwrites the value of the same global variable XXX. i run this code via "opt" with option