Re: DConf 2013 Day 3 Talk 4: LDC by David Nadlinger
On Monday, 17 June 2013 at 15:41:24 UTC, nazriel wrote: On Monday, 17 June 2013 at 13:47:20 UTC, bearophile wrote: Andrei Alexandrescu: http://www.reddit.com/r/programming/comments/1gie4b/dconf_2013_ldc_the_llvmbased_d_compiler_by_david/ Slide 14: PFFT (SSE) seems slow on LDC2: if you can extract a small test case LLVM devs will appreciate a lot a bug report (they fixed many lacks of optimizations submitted by me). If you have a link to the PFFT code them maybe I can do that myself. I don't know what PFFT stands for (can't google it either, funny results shows up) but if it related to vectorization then maybe LDC has been slower because it was built against LLVM 3.3 while LLVM 3.4 brings more vector optimizations. Maybe all what has to be done, is rerunning benchmarks against LDC + LLVM 3.4 ? As far as I followed the LLVM commit list, the change is that the loop vectorizer is now enabled at -O2 (instead of -O3). I don't know the options David has used but I assume something like ldmd2 -O -inline -release. -O from ldmd2 maps to -O3 and therefore enables the loop vectorizer. Regards Kai Slide 25: Implicit invariants often hard to track down Then maybe it's a good idea to add such invariants to the dmd front-end code, even before its port to D. Bye, bearophile
Re: DConf 2013 Day 3 Talk 4: LDC by David Nadlinger
On 2013-06-17 14:25, Andrei Alexandrescu wrote: You know the drill! reddit: http://www.reddit.com/r/programming/comments/1gie4b/dconf_2013_ldc_the_llvmbased_d_compiler_by_david/ hackernews: https://news.ycombinator.com/item?id=5892652 facebook: https://www.facebook.com/dlang.org/posts/658638807483137 twitter: https://twitter.com/D_Programming/status/346598441230671873 youtube: http://youtube.com/watch?v=ntdKZWSiJdY David mentions in the talks that git submodules make it more complicated to do merges. I'm not sure I understand why. git submodules are just regular repositories that are included in other repositories. One can work on these repositories separately, then it shouldn't be much difference. -- /Jacob Carlborg
Re: DConf 2013 Day 3 Talk 4: LDC by David Nadlinger
On 2013-06-17 14:25, Andrei Alexandrescu wrote: You know the drill! reddit: http://www.reddit.com/r/programming/comments/1gie4b/dconf_2013_ldc_the_llvmbased_d_compiler_by_david/ hackernews: https://news.ycombinator.com/item?id=5892652 facebook: https://www.facebook.com/dlang.org/posts/658638807483137 twitter: https://twitter.com/D_Programming/status/346598441230671873 youtube: http://youtube.com/watch?v=ntdKZWSiJdY About the Mac OS X support. Is TLS the only problem on Snow Leopard? Have you considered moving the code dealing with TLS from the dynamic linker into the executable? -- /Jacob Carlborg
Re: HibernateD and DDBC - ORM and DB abstraction layer for D
New version: v0.2.9 Fixed HQL parser bug with underscores in field and table names Fixed compilation error with undefined identifiers in metadata.d Merged pull request to use standard mysql-native library
DConf 2013 Day 3 Talk 5: Effective SIMD for modern architectures by Manu Evans
Apologies for the delay, we're moving and things are a bit hectic. reddit: http://www.reddit.com/r/programming/comments/1go9ky/dconf_2013_effective_simd_for_modern/ twitter: https://twitter.com/D_Programming/status/347433981928693760 hackernews: https://news.ycombinator.com/item?id=5907624 facebook: https://www.facebook.com/dlang.org/posts/659747567372261 youtube: http://youtube.com/watch?v=q_39RnxtkgM Andrei
Re: DMD 2.063.2 now up
On 6/18/13 5:23 PM, Jerry wrote: Walter Brightnewshou...@digitalmars.com writes: and fixes several reported regressions. download.dlang.org Yay! I can compile and run programs now! Thanks everyone for helping me get running again. cheers Jerry This is awesome, right back at you Jerry. Without your help this would have taken much longer to diagnose and fix. Andrei
LDC in LLVM Release Notes
LDC is explicitly mentioned in the LLVM 3.3 Release Notes [0]. In contrast to other frontends, LDC seems to follow upstream much more closely (or maybe is forced to due to bugs?). Anyhow, kudos to David Nadlinger and whoever else was involved! [0] http://llvm.org/releases/3.3/docs/ReleaseNotes.html#ldc-the-llvm-based- d-compiler
Re: LDC in LLVM Release Notes
On Wednesday, 19 June 2013 at 20:40:39 UTC, qznc wrote: LDC is explicitly mentioned in the LLVM 3.3 Release Notes [0]. In contrast to other frontends, LDC seems to follow upstream much more closely (or maybe is forced to due to bugs?). Anyhow, kudos to David Nadlinger and whoever else was involved! [0] http://llvm.org/releases/3.3/docs/ReleaseNotes.html#ldc-the-llvm-based- d-compiler It's also mentioned in the 3.1 notes, but I think it's just there as an example of a project that uses LLVM.
Re: LDC in LLVM Release Notes
On Wednesday, 19 June 2013 at 20:40:39 UTC, qznc wrote: LDC is explicitly mentioned in the LLVM 3.3 Release Notes [0]. In contrast to other frontends, LDC seems to follow upstream much more closely (or maybe is forced to due to bugs?). Anyhow, kudos to David Nadlinger and whoever else was involved! Kai Nacke is actually the one who has been doing most of the work to keep LDC compiling against latest LLVM trunk (and by extension, also the releases). But yes, being able to build against latest LLVM was pretty much a necessity for us this time around, as Kai did quite a lot of work to improve support for Win64 and PPC64 on the LLVM recently, and LDC/MinGW also relies on a few tiny patches I submitted a while ago. David
Re: DMagick image processing with D.
it is a great project, i know it is kind of looking like an a href=http://www.rasteredge.com/how-to/vb-net-imaging/imaging-processing/;image processing tool vb/a for user. the interface looks cool. keep up with the work.
