search for: cowlark

I have a simple expression-evaluation language using LLVM (it's at https://cowlark.com/calculon, if anyone's interested). It has pretty primitive support for 3-vectors, which I'm representing as a <3 x float>. One of my users has asked for proper n-vector support, and I agree with him so I'm adding that. However, he wants to use quite large vectors. He's me...

...ction::setDebugLoc(), but that method doesn't actually have to be in my 2.7 LLVM Debian package. What's the correct way of doing this? In addition, can anyone point me at an example of how to emit a comment attached to an instruction (or function)? -- ┌─── ｄｇ＠ｃｏｗｌａｒｋ．ｃｏｍ ───── http://www.cowlark.com ───── │ │ life←{ ↑1 ⍵∨.^3 4=+/,¯1 0 1∘.⊖¯1 0 1∘.⌽⊂⍵ } │ --- Conway's Game Of Life, in one line of APL -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 262 bytes Desc: OpenPGP digital signature URL: <h...

...ell whether the input is an i32 or a f32. What's the best thing to do here? Explicitly annotating the input type works, of course, but then I need two rules. Use a multipattern? Or is there a way to tell tablegen that the input is allowed to be either? -- ┌─── ｄｇ＠ｃｏｗｌａｒｋ．ｃｏｍ ───── http://www.cowlark.com ───── │ │ "You cannot truly appreciate _Atlas Shrugged_ until you have read it │ in the original Klingon." --- Sea Wasp on r.a.sf.w -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 876 bytes Desc:...

...h RAM on any of my ARM boxes to build LLVM from source, so I can't check to see whether this is a Debian misconfiguration or an intrinsic LLVM issue. Before I start go filing bugs, does anyone know if the LLVM 3.2 JIT actually works on an armhf device? -- ┌─── ｄｇ＠ｃｏｗｌａｒｋ．ｃｏｍ ───── http://www.cowlark.com ───── │ │ 𝕻𝖍'𝖓𝖌𝖑𝖚𝖎 𝖒𝖌𝖑𝖜'𝖓𝖆𝖋𝖍 𝕮𝖙𝖍𝖚𝖑𝖍𝖚 𝕽'𝖑𝖞𝖊𝖍 𝖜𝖌𝖆𝖍'𝖓𝖆𝖌𝖑 𝖋𝖍𝖙𝖆𝖌𝖓. │ -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 263 bytes Desc: OpenPGP digital signature URL: <http://lists.llvm.org/piper...

...uccessfully turning this: define float @t(float %f) nounwind uwtable readnone { %1 = tail call float @sqrtf(float %f) nounwind readnone ret float %1 } ...into this: t: sqrtss %xmm0, %xmm0 ret ...but I haven't figured out what pass does it yet. -- ┌─── ｄｇ＠ｃｏｗｌａｒｋ．ｃｏｍ ───── http://www.cowlark.com ───── │ "Of course, on a sufficiently small planet, 40 km/hr is, in fact, │ sufficient to punt the elastic spherical cow into low orbit." --- │ Brooks Moses on r.a.sf.c -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application...

...ck frame --- in other words, the object will be used strictly inside the function and nowhere else. This applies to both upvalues and objects. Does LLVM have any mechanism for doing the kind of dataflow analysis required to track object lifetime like this? -- ┌─── ｄｇ＠ｃｏｗｌａｒｋ．ｃｏｍ ───── http://www.cowlark.com ───── │ │ "Home is where, when you have to go there, they have to take you in." │ --- Cordelia Naismith -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 254 bytes Desc: OpenPGP digital signature UR...

...had success with this using an extremely crude VC4 code generator for the ACK, but the generated code was painfully terrible, hence this port. Unfortunately I've run out of time and probably won't get a chance to work on this for a while, so if anyone is interested, help yourself: https://cowlark.com/llvm -- ┌─── ｄｇ＠ｃｏｗｌａｒｋ．ｃｏｍ ───── http://www.cowlark.com ───── │ │ "You cannot truly appreciate _Atlas Shrugged_ until you have read it │ in the original Klingon." --- Sea Wasp on r.a.sf.w -------------- next part -------------- A non-text attachment was scrubbed... Name: signature...

On 2 September 2010 11:35, David Given <dg at cowlark.com> wrote: >> The docs >> talk about Instruction::setDebugLoc(), but that method doesn't >> actually appear to be in my 2.7 LLVM Debian package. I suggest you getting the SVN code, since quite a lot has changed since last freeze. -- cheers, --renato http://systemcall.o...

On 8 February 2013 11:01, David Given <dg at cowlark.com> wrote: > I've tried overriding the triple to arm-unknown-linux-gnueabihf and > arm-linux-gnueabihf (via module->setTargetTriple), and while the triples > are accepted, the actual generated code doesn't change with either. > Hi David, If you set the triple to arm it...

...ilder.cpp. This gets turns into a FSQRT ISD node type that the target can handle just like any other ISD node. If the target doesn't mark ISD::FSQRT as Legal or Custom then ExpandNode in LegalizeDAG.cpp turns it back into a sqrtf libcall. On Sun, Jan 20, 2013 at 11:34 AM, David Given <dg at cowlark.com> wrote: > On 20/01/13 19:20, Caldarale, Charles R wrote: > [...] > > That's because there is no llvm.ceil.* intrinsic defined in > include/llvm/Intrinsics.td for 3.2 > > Ah. Yes, that would explain it... does this mean that I can rely on all > the intrinsics list...

...using gcc. I see that llvm-ld supports an inlining pass; is this the *only* place it happens? i.e. do I need to run llvm-ld on my bitcode file before translation? If not, is there anything specifically I need to do in the compiler to make inlining happen? -- ┌─── ｄｇ＠ｃｏｗｌａｒｋ．ｃｏｍ ───── http://www.cowlark.com ───── │ │ life←{ ↑1 ⍵∨.^3 4=+/,¯1 0 1∘.⊖¯1 0 1∘.⌽⊂⍵ } │ --- Conway's Game Of Life, in one line of APL -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 262 bytes Desc: OpenPGP digital signature URL: <h...

...meters, never stored in a global, and not returned from the function, then that object is dead when the function that created the object returns. There may be other possibilities for proving an object dead, but this should definitely be safe. On Fri, Aug 27, 2010 at 7:16 PM, David Given <dg at cowlark.com> wrote: > I'm working on an LLVM-based compiler for a very closure-centric > language. It's becoming apparent that it's going to suffer heavily from > garbage collector churn, as all the useful programming idioms the > language makes possible are going to involve memo...

...is with LLVM 3.3, 3.4 and 3.5. I'm using MCJIT (although I've tried without, as well), and I've tried setting FloatABI to HardFloat. Does anyone know if this is actually working yet? If so, are there any examples of how to do this successfully? -- ┌─── ｄｇ＠ｃｏｗｌａｒｋ．ｃｏｍ ───── http://www.cowlark.com ───── │ "Feminism encourages women to leave their husbands, kill their │ children, practice withcraft, destroy capitalism and become lesbians." │ --- Rev. Pat Robertson -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application...

...en split over and over again until it fits into registers. So, any <50 x float> would take 16 XMM registers, that will be spilled. The situation with integer types is even worse because you can truncate or extend from one type to another. On Feb 6, 2013, at 8:41 AM, David Given <dg at cowlark.com> wrote: > I have a simple expression-evaluation language using LLVM (it's at > https://cowlark.com/calculon, if anyone's interested). It has pretty > primitive support for 3-vectors, which I'm representing as a <3 x float>. > > One of my users has asked for...

...y of doing it. Any suggestions? (The actual use case: I have an object with embedded vtables; given a pointer to one of the vtables, I need to get the pointer to the actual object instance. Does LLVM has any built-in support for doing this sort of thing?) -- ┌─── ｄｇ＠ｃｏｗｌａｒｋ．ｃｏｍ ───── http://www.cowlark.com ───── │ │ life←{ ↑1 ⍵∨.^3 4=+/,¯1 0 1∘.⊖¯1 0 1∘.⌽⊂⍵ } │ --- Conway's Game Of Life, in one line of APL -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 262 bytes Desc: OpenPGP digital signature URL: <h...

...tend to want to do much! On a related note, I remember seeing compile-time flags to clang to tell it the sizes of the various primitive types, but I can't find them any more. Do they still exist or will I need to do a custom clang build to change them? -- ┌─── ｄｇ＠ｃｏｗｌａｒｋ．ｃｏｍ ───── http://www.cowlark.com ───── │ │ life←{ ↑1 ⍵∨.^3 4=+/,¯1 0 1∘.⊖¯1 0 1∘.⌽⊂⍵ } │ --- Conway's Game Of Life, in one line of APL -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 262 bytes Desc: OpenPGP digital signature URL: <h...

...or anyone else to use my code. I gather 2.8 is coming along soon; is there an ETA yet? And until then is there a snapshot of the 2.7 documentation anywhere online? (PS. Please don't cc me on replies. I'm on the list, I don't need two copies.) -- ┌─── ｄｇ＠ｃｏｗｌａｒｋ．ｃｏｍ ───── http://www.cowlark.com ───── │ │ life←{ ↑1 ⍵∨.^3 4=+/,¯1 0 1∘.⊖¯1 0 1∘.⌽⊂⍵ } │ --- Conway's Game Of Life, in one line of APL -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 262 bytes Desc: OpenPGP digital signature URL: <h...

...in a different way...) If it makes any difference, I'm not using the just-in-time part of the JIT, as it were. I have lazy compilation turned off and have a model where the entire script is compiled into IR code and then to machine code when my app starts. See the init() method here: https://cowlark.com/calculon/artifact/1e496bfd00104bd392b8da9dece45156dffe3039 -- ┌─── ｄｇ＠ｃｏｗｌａｒｋ．ｃｏｍ ───── http://www.cowlark.com ───── │ │ 𝕻𝖍'𝖓𝖌𝖑𝖚𝖎 𝖒𝖌𝖑𝖜'𝖓𝖆𝖋𝖍 𝕮𝖙𝖍𝖚𝖑𝖍𝖚 𝕽'𝖑𝖞𝖊𝖍 𝖜𝖌𝖆𝖍'𝖓𝖆𝖌𝖑 𝖋𝖍𝖙𝖆𝖌𝖓. │ -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Typ...

...very small pure functional language. It doesn't support closures, but it does have upvalues. I'm implementing them in this by just passing the variables in as parameters directly --- as it's pure, I don't have to worry about nested functions changing an upvalue. (It's at http://cowlark.com/calculon/dir?ci=tip if you're interested, but be warned, upvalues are currently broken.) -- ┌─── ｄｇ＠ｃｏｗｌａｒｋ．ｃｏｍ ───── http://www.cowlark.com ───── │ "Of course, on a sufficiently small planet, 40 km/hr is, in fact, │ sufficient to punt the elastic spherical cow into low orbit."...

...instruction and then produce a custom pass, running after the FunctionAttrsPass, which would then lower the instructions to either a call to malloc or an alloca instruction. I see vague references to an LLVM malloc instruction; did this disappear after 2.6? -- ┌─── ｄｇ＠ｃｏｗｌａｒｋ．ｃｏｍ ───── http://www.cowlark.com ───── │ │ "Home is where, when you have to go there, they have to take you in." │ --- Cordelia Naismith -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 254 bytes Desc: OpenPGP digital signature UR...