ffp-contract
Controls when the compiler is permitted to form fused floating-point operations, such as fused multiply-add (FMA). Fused operations are allowed to produce more precise results than performing the individual operations separately.
fimf-arch-consistency, Qimf-arch-consistency
Ensures that the math library functions produce consistent results across different microarchitectural implementations of the same architecture.
fimf-max-error, Qimf-max-error
Defines the maximum allowable relative error for math library function results, including division and square root.
fimf-precision, Qimf-precision
Lets you specify a level of accuracy (precision) that the compiler should use when determining which math library functions to use.
fimf-use-svml, Qimf-use-svml
Instructs the compiler to use the Short Vector Math Library (SVML) rather than the Intel® oneAPI DPC++/C++ Compiler Math Library (LIBM) to implement math library functions.
fma, Qfma
Determines whether the compiler generates fused multiply-add (FMA) instructions if such instructions exist on the target processor.
fp-model, fp
Controls the semantics of floating-point calculations.