On Tue, 3 Apr 2012 14:21:11 +0300, Andrey Simonenko wrote:
> At least finite() function call was eliminated from the result Assembler
> code when -ffast-math option is used, tested on 9.0-STABLE and 10.0-CURRENT.
The documentation for -ffast-math once (GCC 3.x?) contained
-ffast-math
Might allow some programs designed to not be too dependent on IEEE
behavior for floating-point to run faster, or die trying.
which seems like what you're observing.
-ffast-math includes -ffinite-math-only which assumes that
floating-point arguments and results are never NaNs or +-Infs.
Compiling your code with "-ffast-math -fno-finite-math-only" should
restore the call to finite().
--
Thomas Mueller
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