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.
Syntax
Linux:
-ffp-contract
=
keyword
Windows:
None
Arguments
- keyword
- Possible values are:
- fast
- Fuses floating-point operations across statements.
- on
- Fuses floating-point operations within the same statement.
- off
- Does not fuse floating-point operations.
Default
- -ffp-contract=fast
- Fuses floating-point operations across statements.However, if option-fp-model=strictis specified, the default is-ffp-contract=off.
Description
This option 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.
IDE Equivalent
None
Alternate Options
None