Enables use of faster but slightly less accurate code sequences for math functions.
IA-64 architecture
Linux: | -fp-relaxed -no-fp-relaxed |
Mac OS X: | None |
Windows: | /Qfp-relaxed /Qfp-relaxed- |
None
-no-fp-relaxed |
Default code sequences are used for math functions. |
This option enables use of faster but slightly less accurate code sequences for math functions, such as divide and sqrt. When compared to strict IEEE* precision, this option slightly reduces the accuracy of floating-point calculations performed by these functions, usually limited to the least significant digit.
This option also enables the performance of more aggressive floating-point transformations, which may affect accuracy.
Linux: -IPF-fp-relaxed (this is a deprecated option)
Windows: /QIPF-fp-relaxed (this is a deprecated option)