search for: fdenorm

...ing FP denormals. There is currently some support for variations in the way denormals are handled, but it isn't consistent across architectures and generally feels kind of half-baked. I'd like to discuss possible solutions to this problem. First, there is a clang command line option: -fdenormal-fp-math=<arg> Select which denormal numbers the code is permitted to require. Valid values are: ieee, preserve-sign, and positive-zero, which correspond to IEEE 754 denormal numbers, the sign of a flushed-to-zero number is preserved in the sign of 0, denormals are flushed...

...d above. -ffast-math Equivalent to -ffp-model=fast. (I'm not sure that's currently true.) -f[no-]math-errno -ffp-contract={on|off|fast} -f[no-]honor-infinities -f[no-]honor-nans -f[no-]associative-math -f[no-]reciprocal-math -f[no-]signed-zeros -f[no-]trapping-math -f[no-]rounding-math -fdenormal-fp-math={ieee, preservesign, positivezero} -fdenormal-fp-math-fp32={ieee, preservesign, positivezero} -ffp-exception-behavior={ignore,maytrap,strict} Each of these has a 1-to-1 correspondance to an FP semantic mode. (I think several of these should set "except_behavior" to "ign...

...d above. -ffast-math Equivalent to -ffp-model=fast. (I'm not sure that's currently true.) -f[no-]math-errno -ffp-contract={on|off|fast} -f[no-]honor-infinities -f[no-]honor-nans -f[no-]associative-math -f[no-]reciprocal-math -f[no-]signed-zeros -f[no-]trapping-math -f[no-]rounding-math -fdenormal-fp-math={ieee, preservesign, positivezero} -fdenormal-fp-math-fp32={ieee, preservesign, positivezero} -ffp-exception-behavior={ignore,maytrap,strict} Each of these has a 1-to-1 correspondance to an FP semantic mode. (I think several of these should set "except_behavior" to "ign...

...; > > -f[no-]math-errno > > -ffp-contract={on|off|fast} > > -f[no-]honor-infinities > > -f[no-]honor-nans > > -f[no-]associative-math > > -f[no-]reciprocal-math > > -f[no-]signed-zeros > > -f[no-]trapping-math > > -f[no-]rounding-math > > -fdenormal-fp-math={ieee, preservesign, positivezero} > > -fdenormal-fp-math-fp32={ieee, preservesign, positivezero} > > -ffp-exception-behavior={ignore,maytrap,strict} > > Each of these has a 1-to-1 correspondance to an FP semantic mode. > > (I think several of these should set...

...(I'm not sure that's currently true.) > > -f[no-]math-errno > -ffp-contract={on|off|fast} > -f[no-]honor-infinities > -f[no-]honor-nans > -f[no-]associative-math > -f[no-]reciprocal-math > -f[no-]signed-zeros > -f[no-]trapping-math > -f[no-]rounding-math > -fdenormal-fp-math={ieee, preservesign, positivezero} > -fdenormal-fp-math-fp32={ieee, preservesign, positivezero} > -ffp-exception-behavior={ignore,maytrap,strict} > Each of these has a 1-to-1 correspondance to an FP semantic mode. > (I think several of these should set "except_behav...