Equivalent to asm volatile in Gfortran?

Question

Is there an equivalent to Gcc's inline assembly in Gfortran?

__asm__ __volatile__ (...)

I cannot find anything in the gfortran man page, or the manual.

Use tag [tag:fortran] to get more attention. – Vladimir F Героям слава Feb 19 '16 at 19:51 — Vladimir F Героям слава, Feb 19 '16 at 19:51

score 3 · Accepted Answer · answered Jun 09 '15 at 12:33

3

No, there isn't. The easiest way around it is to have a C function with the asm, and then call that C function with ISO_C_BINDING.

answered Jun 09 '15 at 12:33

janneb

Thanks for the information; we're actually fiddling with a specint test case written in fortran and suspect a performance problem due to stack layout on a certain machine (using Gfortran). But it seems to be futile to try modifying stack addreasses from within the source code. Maybe I'll just do it in the assembler sources. – user3510167 Jun 10 '15 at 10:19

1 Answers1