From: "Alexander Melkov" <melkov@yandex-team.ru>
To: <gcc-help@gcc.gnu.org>
Subject: i386, asm() and "o" constraint
Date: Wed, 24 Sep 2003 19:54:00 -0000 [thread overview]
Message-ID: <016001c382d5$a34e52d0$dec1b4d5@yandex.ru> (raw)
Before writing to bugs, I thought it would be appropriate to ask it here:
Does anyone know if that is implemented in latest GCC releases? gcc-3.1.1, just like 2.95.x, says
"warning: asm operand 5 probably doesn't match constraints".
What I actually need is to have an instruction like "adcl %3,4+%1" compiled without useless (both
compiler and assembler) warnings, where %1 is a memory reference, say, "=o" (Sum), where Sum is a
64-bit integer.
Unlike "m", "o" might simply write "0(%ebp)" instead of just "(%ebp)".
Best Regards, Alexander Melkov
reply other threads:[~2003-09-24 19:54 UTC|newest]
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