[comp.benchmarks] Special Benchmark Optimizations

kirchner@informatik.uni-kl.de (Reinhard Kirchner) (01/04/91)

Hello,
Mr. Mashey wrote that some compilers do a special optimization on the
whetstone benchmark. I want to confirm this:

The Siemens BS2000 Fortran ( FOR1 ) generates for SIN(x)/COS(x) a call
for TAN(x). It is done only in the highest level of optimization,
and it speeds this thing up by 10% or so ( this is some years ago, I don't
remember any details )

Reinhard Kirchner
Univ. Kaiserslautern, Germany
kirchner@uklirb.informatik.uni-kl.de