6 ms·

LLVM 3.6 Release Notes

131 points by dochtman 12y ago

cygx 12y ago
And I just compiled LLVM+Clang 3.5.1 a few hours ago - could have timed that one a bit better ;)
eslaught 12y ago
Looks like the LLVM folks are (finally) starting to get serious about making (fast) precise GC possible [1]? Back when I was (struggling at) working on Rust's GC this was by far the biggest hurdle [2]. Good to see they're getting around to fixing this. [1]: http://llvm.org/docs/Statepoints.html http://llvm.org/docs/Statepoints.html [2]: https://github.com/elliottslaughter/rust-gc-talk https://github.com/elliottslaughter/rust-gc-talk
- hga 12y ago
  Most specifically Azul folks who are contributing to the project: http://www.philipreames.com/Blog/ http://www.philipreames.com/Blog/ (Azul Systems does a very concurrent Hotspot based JVM called Zing as well as certified and supported OpenJDK releases.)
pedrocr 12y ago
Are there any recurring gcc vs llvm (and vs icc) benchmarks to see how they are evolving over time? Something like benchmarksgame.alioth.debian.org would be nice.
- reportingsjr 12y ago
  You may be able to find what you want by digging through these benchmarks: http://openbenchmarking.org/results/featured/Compiler http://openbenchmarking.org/results/featured/Compiler It is kind of difficult to find benchmarks that were run on the same setup over time.
- alblue 12y ago
  Phoronix have a section on compiler news [1]. They do comparisons between compilers, such as llvm vs gcc [2]. I would imagine that with the release of llvm there will be a comparison with gcc5 in the near future. [1] http://www.phoronix.com/scan.php?page=news_topic&q=Compiler http://www.phoronix.com/scan.php?page=news_topic&q=Compiler [2] http://www.phoronix.com/scan.php?page=news_item&px=MTgzMzQ http://www.phoronix.com/scan.php?page=news_item&px=MTgzMzQ
- the_why_of_y 12y ago
  There are some good SPEC numbers on GCC and LLVM here: https://vmakarov.fedorapeople.org/spec/ https://vmakarov.fedorapeople.org/spec/ The latest runs are GCC 4.9 and LLVM 3.4: https://vmakarov.fedorapeople.org/spec/2014/2014.html https://vmakarov.fedorapeople.org/spec/2014/2014.html
riffraff 12y ago
does anyone know what this means? Python 2.7 is now required This was done to simplify compatibility with python 3.
- Qantourisc 12y ago
  I'm assuming they allowed <2.7 Python before, which are less compatible with 3.
asb 12y ago
If you want to keep up to date on developments in LLVM, Clang and related projects between releases, you may be interested in my LLVM Weekly newsletter http://llvmweekly.org/ http://llvmweekly.org/
ambrop7 12y ago
Clang docs & release notes: http://llvm.org/releases/3.6.0/tools/clang/docs/ http://llvm.org/releases/3.6.0/tools/clang/docs/ (these are a bit hard to find)

131 points by dochtman 12y ago

cygx 12y ago

And I just compiled LLVM+Clang 3.5.1 a few hours ago - could have timed that one a bit better ;)

Looks like the LLVM folks are (finally) starting to get serious about making (fast) precise GC possible [1]? Back when I was (struggling at) working on Rust's GC this was by far the biggest hurdle [2]. Good to see they're getting around to fixing this. [1]: http://llvm.org/docs/Statepoints.html http://llvm.org/docs/Statepoints.html [2]: https://github.com/elliottslaughter/rust-gc-talk https://github.com/elliottslaughter/rust-gc-talk

hga 12y ago
Most specifically Azul folks who are contributing to the project: http://www.philipreames.com/Blog/ http://www.philipreames.com/Blog/ (Azul Systems does a very concurrent Hotspot based JVM called Zing as well as certified and supported OpenJDK releases.)

pedrocr 12y ago

Are there any recurring gcc vs llvm (and vs icc) benchmarks to see how they are evolving over time? Something like benchmarksgame.alioth.debian.org would be nice.

reportingsjr 12y ago
You may be able to find what you want by digging through these benchmarks: http://openbenchmarking.org/results/featured/Compiler http://openbenchmarking.org/results/featured/Compiler It is kind of difficult to find benchmarks that were run on the same setup over time.
alblue 12y ago
Phoronix have a section on compiler news [1]. They do comparisons between compilers, such as llvm vs gcc [2]. I would imagine that with the release of llvm there will be a comparison with gcc5 in the near future. [1] http://www.phoronix.com/scan.php?page=news_topic&q=Compiler http://www.phoronix.com/scan.php?page=news_topic&q=Compiler [2] http://www.phoronix.com/scan.php?page=news_item&px=MTgzMzQ http://www.phoronix.com/scan.php?page=news_item&px=MTgzMzQ
the_why_of_y 12y ago
There are some good SPEC numbers on GCC and LLVM here: https://vmakarov.fedorapeople.org/spec/ https://vmakarov.fedorapeople.org/spec/ The latest runs are GCC 4.9 and LLVM 3.4: https://vmakarov.fedorapeople.org/spec/2014/2014.html https://vmakarov.fedorapeople.org/spec/2014/2014.html

riffraff 12y ago

does anyone know what this means? Python 2.7 is now required This was done to simplify compatibility with python 3.

Qantourisc 12y ago
I'm assuming they allowed <2.7 Python before, which are less compatible with 3.

asb 12y ago

If you want to keep up to date on developments in LLVM, Clang and related projects between releases, you may be interested in my LLVM Weekly newsletter http://llvmweekly.org/ http://llvmweekly.org/

ambrop7 12y ago

Clang docs & release notes: http://llvm.org/releases/3.6.0/tools/clang/docs/ http://llvm.org/releases/3.6.0/tools/clang/docs/ (these are a bit hard to find)