These ‘-m’ options are defined for the VAX:
-munix ¶
Do not output certain jump instructions (aobleq and so on) that the Unix assembler for the VAX cannot handle across long ranges.
-mgnu ¶
Do output those jump instructions, on the assumption that the GNU assembler is being used.
-mg ¶
Output code for G-format floating-point numbers instead of D-format.
-mlra ¶
-mno-lraEnable Local Register Allocation. This is still experimental for the VAX, so by default the compiler uses standard reload.
© Free Software Foundation
Licensed under the GNU Free Documentation License, Version 1.3.
https://gcc.gnu.org/onlinedocs/gcc-13.1.0/gcc/VAX-Options.html