On Mon, 7 May 2018, Indu Bhagat wrote: > Q2. If one wants the compiler to generate fminnm/fmaxnm instructions, while > conforming with IEEE standard, the way to do that will be to use math > builtins fmin()/fmax(). Is this correct understanding?
For IEEE 754-2008 minNum / maxNum operations, which those instructions correspond to and fmin and fmax bind to, yes. For IEEE 754-2018 (in progress), there are different minimum / maximum operations, which don't match those AArch64 instructions (but some do match RISC-V instructions), and there are new proposed corresponding C functions such as fmaximum and fminimum_num (I don't know of implementations of those functions). -- Joseph S. Myers jos...@codesourcery.com
