On Wednesday, 23 October 2013 at 17:45:50 UTC, John Joyus wrote:
On 10/22/2013 06:42 PM, David Nadlinger wrote:
LDC 0.12.0, the LLVM-based D compiler, is available for
download!
Congratulations!
I am a D enthusiast who reads more *about* D than actually
learning the language! ;)
I have a question about LLVM.
When it comes to performance, do all LLVM-based languages
eventually match each other in speed for any given task, no
matter it is Clang or D?
I guess having or not having a GC (or different implementations
of it in different languages) will make a difference, but if we
exclude GC, will they be generating the same exact code for any
given operation?
In other words, though two different languages are based on
LLVM, can one of its binary exceed the other in speed?
Thanks.
It depends.
Two benchmarks of different languages and compilers:
http://togototo.wordpress.com/2013/07/23/benchmarking-level-generation-go-rust-haskell-and-d/
http://togototo.wordpress.com/2013/08/23/benchmarks-round-two-parallel-go-rust-d-scala-and-nimrod/
I think it's answer for your question. For example, Clang (LLVM
C) is fastest, LDC (LLVM D) has 2-nd place, but LLVM-GHC (LLVM
Haskell) ~ 2 times slower.
