[Bug inline-asm/43998] inline assembler: can't set clobbering for input register

[socketpair at gmail dot com]

------- Comment #9 from socketpair at gmail dot com  2010-05-06 15:03 -------
> Not if you make the output unused by not using it.
I do not understand why gcc distinguish between 'specifying register as output'
and 'specifying as clobbering'.

I always considered, that 'clobber list' specify list of items which may be
changed *AFTER* the end of instruction(s). So I do not understand why adding
eax in clobber list will break compilation.

I found some posts where people create size_t dummy; and specify this variable
as output. insted of just specifying this register in clobber-list.

Why not to fix bug I have reported? Maybe convert to feature?


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socketpair at gmail dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |UNCONFIRMED
         Resolution|INVALID                     |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43998