[Haskell-cafe] GHC vs GCC

Thomas DuBuisson thomas.dubuisson at gmail.com
Fri Mar 26 23:48:50 EDT 2010

On Fri, Mar 26, 2010 at 6:16 PM, Felipe Lessa <felipe.lessa at gmail.com> wrote:
> I'd guess that the LLVM backend could generate code that is at least
> as fast as gcc. It would be nice if you could test it.

NCG done with GHC 6.12.1 w/ -O3
LLVM using a version of HEAD w/ -O3
GCC version 4.4.3 w/ -O3
Please take note Johns benchmark of JHC showing it beats everything
here (including C).
Also note -Odph did not alter performance from -O3.

[tommd at Mavlo Test]$ time ./blahC

real    0m4.124s
user    0m4.032s
sys     0m0.013s

[tommd at Mavlo Test]$ time ./blahLLVM

real    0m5.045s
user    0m4.984s
sys     0m0.006s

[tommd at Mavlo Test]$ time ./blahNCG

real    0m5.960s
user    0m5.872s
sys     0m0.008s


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