3.20.50 VAX Options

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.

-md
-md-float

Use the D_floating data format for double-precision floating-point numbers instead of G_floating.

-mg
-mg-float

Use the G_floating data format for double-precision floating-point numbers instead of D_floating.

-mlra
-mno-lra

Enable Local Register Allocation. This is still experimental for the VAX, so by default the compiler uses standard reload.