[llvm-commits] [llvm] r49458 - /llvm/trunk/lib/Transforms/IPO/SimplifyLibCalls.cpp

Duncan Sands baldrick at free.fr
Thu Apr 10 01:58:51 PDT 2008


> +      // x    pow(x, 0.5)  sqrt(x)
> +      // ---------------------------------------------
> +      // -0.0    +0.0       -0.0
> +      // -inf    +inf       NaN

looks like pow is broken.  Is pow's behaviour documented
anywhere?  On my machine the man page says:

       The pow() function can return the following error:

       EDOM   The  argument x is negative and y is not an integral value.  This would result in a complex num‐

Are you sure errno is not being set by pow in these cases?



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