From:	"Alexei A. Frounze" <alex DOT fru AT mtu-net DOT ru>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: inefficiency of GCC output code & -O problem
Date:	Tue, 11 Apr 2000 08:29:42 +0400
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salvador wrote:
> > Is it a normal thing, if one instruction that adds something to ESP(or EBP) is
> > followed by sutracting instruction that works with the same register?
> 
> ?

When it discards ESP change after a call to subroutine and plus sometimes one
extra  add/sub. But they could be combined altogether to the only one
instruction.

> > an error encounters:
> > "Error: Error: Missing ')' assumed"
> > "Error: Error: Ignoring junk `(%ebp))' after expression")?
> > W/o the -O2 switch it's compiled fine. Isn't it a little bit strange?
> 
> Can you show a small example? I guess that's an error in your inline assembler
> code, but I can't know without the actual code.

21KB of a C file that depends on 3 other modules. :))
I'll try. But I don't know what's wrong, since it _is_ compiled normally w/o -O
switch. Strange thingy.

later,
Alexei A. Frounze
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