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Re: [patch 9/N][PA] convert to fma
On Sun, Nov 14, 2010 at 7:34 AM, Joseph S. Myers
>> That is true. GCC doesn't even preserve kinds (Q vs S) of NaNs on
>> x86 with SSE FP math.
> Non-preservation of the kind of NaN (if it should otherwise be preserved
> for IEEE semantics) should be conditioned on HONOR_SNANS (mode). ?(The
> documentation of -fsignaling-nans does warn that not everything that
> should be conditioned on it necessarily is.)
But -fsignaling-nans doesn't address
since GCC treat FP add and multiply commutative even when both
operands are NaNs.