[m-users.] users Digest, Vol 107, Issue 14

Volker Wysk post at volker-wysk.de
Tue Oct 17 18:17:01 AEDT 2023


Am Dienstag, dem 17.10.2023 um 16:41 +1100 schrieb Julien Fischer:
> On Mon, 16 Oct 2023, Volker Wysk wrote:
> 
> > This really surprises me. But they don't state if they used the low-level-C
> > (asm_fast) or the high-level-C backend. The former is faster.
> 
> Let me fix that for you: the former is sometimes faster for some
> programs on some systems for some versions of Mercury. For the Mercury
> compiler, for example, which of the two is faster has flipped around
> fairly regularly.

Hmmm. That surprises me. From what I've learned here in this list, the low-
level-C grade should be faster. It's a mixture of C and assembler, whereas
the high-level-C is just C.

When installing the RODT verson of the compiler, it always says that you get
a faster compiler, when doing both compilation passes.

Cheers,
Volker


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