Gcc/10.2.0/gcc/Nios-II-Function-Attributes
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6.33.23 Nios II Function Attributes
These function attributes are supported by the Nios II back end:
target (options)
As discussed in Common Function Attributes, this attribute allows specification of target-specific compilation options.
When compiling for Nios II, the following options are allowed:
- ‘
custom-insn=N
’
‘no-custom-insn
’ Each ‘
custom-insn=N
’ attribute locally enables use of a custom instruction with encodingN
when generating code that usesinsn
. Similarly, ‘no-custom-insn
’ locally inhibits use of the custom instructioninsn
. These target attributes correspond to the-mcustom-insn=N
and-mno-custom-insn
command-line options, and support the same set ofinsn
keywords. See Nios II Options, for more information.- ‘
custom-fpu-cfg=name
’ This attribute corresponds to the
-mcustom-fpu-cfg=name
command-line option, to select a predefined set of custom instructions namedname
. See Nios II Options, for more information.
- ‘