[PATCH] Pass -mtune and -march options to assembler.

[Valdimir Volynsky]

  Paul Brook <paul@codesourcery.com> wrote:
> Having assembler behavior depend on the contents of a 
>comment sounds like a truly terrible idea to me.

Comments used by GCC for change assembler behavior.
Quote from gcc/doc/tm.texi

@defmac ASM_APP_ON
A C string constant for text to be output before each 
@code{asm}
statement or group of consecutive ones.  Normally this is
@code{"#APP"}, which is a comment that has no effect on 
most
assemblers but tells the GNU assembler that it must check 
the lines
that follow for all valid assembler constructs.
@end defmac

@defmac ASM_APP_OFF
A C string constant for text to be output after each 
@code{asm}
statement or group of consecutive ones.  Normally this is
@code{"#NO_APP"}, which tells the GNU assembler to resume 
making the
time-saving assumptions that are valid for ordinary 
compiler output.
@end defmac

Quote from gcc/ada/gnat_ugn.texi :

The assembly code you included is clearly indicated by
the compiler, between the @code{#APP} and @code{#NO_APP}
delimiters. The character before the 'APP' and 'NOAPP'
can differ on different targets. For example, GNU/Linux 
uses '#APP' while
on NT you will see '/APP'.

Vladimir.
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