On 2015-10-15, at 10:58, Gary Weinhold wrote:

> I seem to recall when COBOL first started to compile to MVCL, Amdahl SEs 
> zapped it to an MVC loop and greatly improved COBOL performance.  Or 
> something like that...
>  
... and the entire loop might have fit in no more bytes of code than
were required by the setup for MVCL.

I remember that in CDC 6600/6400 FORTRAN hackers had a SHIFT(,)
function which on first entry zapped its call to a single inline
instruction.

-- gil

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