Comments in assember output
Andrew Haley
aph@redhat.com
Fri Dec 1 11:22:00 GMT 2006
Fabian Cenedese writes:
>
> > > > 1:func.c **** float func( float a, float b )
> > > > 2:func.c **** {
> > > > 36 LM1:
> > > > 37 0000 55 pushl %ebp
> > > > 38 0001 89E5 movl %esp, %ebp
> > > > 40 LM2:
> > > > 41 0003 D9450C flds 12(%ebp)
> > > >
> > > >This appears to be the sort of output you are looking for, right?
> > >
> > > That sounds usefull, I could use that as well. But when I tried it
> > > it didn't mix the lines, I just got (almost) all lines from the cpp
> > > source file and after that the assembler code. There are several
> > > functions in the cpp file, so at least those should be separatable
> > > in the assembler code. I compiled without optimization so the
> > > functions should not be intermingled. I tried the various -a flags
> > > but it didn't work so far.
> >
> >That's the way that gcc works. The optimizers rearrange the functions
> >and output them in dependency order. "-fno-unit-at-a-time" might
> >help.
>
> Even if I don't use optimization?
Yes, we always output stuff in dep order.
> But it didn't help either, still big blocks of code. With
> -fverbose-asm I see the switch on and off, but the rest of the
> output is exactly the same.
Don't know why this is.
Andrew.
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