Linked by ebasconp on Fri 10th Jun 2011 22:22 UTC
Benchmarks "Google has released a research paper that suggests C++ is the best-performing programming language in the market. The internet giant implemented a compact algorithm in four languages - C++, Java, Scala and its own programming language Go - and then benchmarked results to find 'factors of difference'."
Thread beginning with comment 477106
To view parent comment, click here.
To read all comments associated with this story, please click here.
RE[5]: GCC isn't all that great
by burnttoys on Mon 13th Jun 2011 20:18 UTC in reply to "RE[4]: GCC isn't all that great"
burnttoys
Member since:
2008-12-20

I couldn't tell you more about GCC vectorisation in any great detail.

I have seen restrict et al work (that is generate vector code) on ARM for the NEON instruction set but right now I can't remember if that was RVCT or GCC. If ARM is your thing it might be worth checking the linaro.org builds of GCC. For x86 - I'm afraid I've no idea. I just hit "build" in Qt Creator as none of my x86 code is really that performance critical anymore!

Reply Parent Score: 1

Alfman Member since:
2011-01-28

burnttoys,

There seem to have been a small army of devs reporting issues with 'restrict' since 2002, which have been marked as dups of each other. They ultimately point to this bug which indicates a fix in GCC 4.5.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14187

Reply Parent Score: 2