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概要[]
引数[]
- MODE (enum machine_mode)
実装[]
264 /* True if the given mode has a NaN representation and the treatment of
265 NaN operands is important. Certain optimizations, such as folding
266 x * 0 into x, are not correct for NaN operands, and are normally
267 disabled for modes with NaNs. The user can ask for them to be
268 done anyway using the -funsafe-math-optimizations switch. */
269 #define HONOR_NANS(MODE) \
270 (MODE_HAS_NANS (MODE) && !flag_finite_math_only)