Gcc/10.2.0/gcc/OpenRISC-Options
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3.19.37 OpenRISC Options
These options are defined for OpenRISC:
-mboard=name
Configure a board specific runtime. This will be passed to the linker for newlib board library linking. The default is
or1ksim
.-mnewlib
This option is ignored; it is for compatibility purposes only. This used to select linker and preprocessor options for use with newlib.
-msoft-div
-mhard-div
Select software or hardware divide (
l.div
,l.divu
) instructions. This default is hardware divide.-msoft-mul
-mhard-mul
Select software or hardware multiply (
l.mul
,l.muli
) instructions. This default is hardware multiply.-msoft-float
-mhard-float
Select software or hardware for floating point operations. The default is software.
-mdouble-float
When
-mhard-float
is selected, enables generation of double-precision floating point instructions. By default functions fromlibgcc
are used to perform double-precision floating point operations.-munordered-float
When
-mhard-float
is selected, enables generation of unordered floating point compare and set flag (lf.sfun*
) instructions. By default functions fromlibgcc
are used to perform unordered floating point compare and set flag operations.-mcmov
Enable generation of conditional move (
l.cmov
) instructions. By default the equivalent will be generated using set and branch.-mror
Enable generation of rotate right (
l.ror
) instructions. By default functions fromlibgcc
are used to perform rotate right operations.-mrori
Enable generation of rotate right with immediate (
l.rori
) instructions. By default functions fromlibgcc
are used to perform rotate right with immediate operations.-msext
Enable generation of sign extension (
l.ext*
) instructions. By default memory loads are used to perform sign extension.-msfimm
Enable generation of compare and set flag with immediate (
l.sf*i
) instructions. By default extra instructions will be generated to store the immediate to a register first.-mshftimm
Enable generation of shift with immediate (
l.srai
,l.srli
,l.slli
) instructions. By default extra instructions will be generated to store the immediate to a register first.
Next: PDP-11 Options, Previous: Nvidia PTX Options, Up: Submodel Options [Contents][Index]