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[PATCH, i386]: Improve sync inc/dec selection, add %K RTM operand modifier

From: Uros Bizjak <ubizjak at gmail dot com>
To: gcc-patches at gcc dot gnu dot org
Date: Fri, 3 Aug 2012 19:42:45 +0200
Subject: [PATCH, i386]: Improve sync inc/dec selection, add %K RTM operand modifier

Hello!

Small improvement in inc/dec selection, added forgotten %K operand modifier.

2012-08-03  Uros Bizjak  <ubizjak@gmail.com>

	* config/i386/sync.md (*atomic_fetch_add_cmp<mode>): Use
	incdec_operand predicate to return INC or DEC insn mnemonic.
	Add %K operand modifier.
	(atomic_add<mode>): Use incdec_operand predicate to
	return INC or DEC insn mnemonic.
	(atomic_dec<mode>): Ditto.

Tested on x86_64-pc-linux-gnu {,-m32}, committed to mainline SVN.

Uros.

Attachment: p.diff.txt
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