[MLton-devel] nucleic benchmark times

[Henry Cejtin]

I don't think that putting in overflow tests in C compiled code is as cost
free (runtime) as you think.  I know that the 2.96 version of gcc uses many
lea instructions, which are the only three-address operations Intel has, and
they never detect overflow.  I.e., the overflow flag is not set by them.
As to hooking into gcc's internals, I remember long long ago looking at the
RTL language that they use and it looked pretty horrible.  It was long ago
and I know that there are now much better documents on it.


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