On 28/10/13 20:02, Iain Buclaw wrote:
I don't see it that way. Up until now at least I haven't seen anything they do that wasn't already do-able in GCC.
I confess I may be biased here because recently I've been finding that D code compiled with LDC seems to typically run faster than stuff compiled with GDC -- particularly code which makes any kind of serious use of stuff from std.algorithm or any other strongly generic parts of the language.
I can't imagine there are any fundamental frontend glue-code differences that are responsible for that, so I was assuming LLVM had a few areas where its optimizations worked better than the GCC middle/backend for various language constructs.
I did test just now making sure that I used GDC with -march=native just in case that was the issue, but there's still a performance gap. The only other guess I have -- and it's a complete guess -- could it be inline-assembly related, that LDC gains a little here?
