From: Eduardo D'Azevedo
Date: Tue, 06 Mar 2007 12:11:21 -0500
I would like to suggest moving function dlamc3 out of dlamch.f and
packaged as a separate source file.
Function dlamc3(a,b) just returns a+b.
dlamch.f calls dlamc3 to "fool" the compiler to ensure that relevant
values are stored and not held in registers or affected by optimizers.
By having dlamc3 in a separate file instead of within dlamch.f, there is
less chance of inlining dlamc3 by optimizing compilers.
Another suggestion may be providing an alternate dlamch that uses
Fortran 90 intrinsics to directly provide the characteristics of the
floating point system.
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