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r182420 - in /trunk/gcc: ChangeLog config/sparc...

From: ebotcazou at gcc dot gnu dot org
To: gcc-cvs at gcc dot gnu dot org
Date: Fri, 16 Dec 2011 23:37:48 -0000
Subject: r182420 - in /trunk/gcc: ChangeLog config/sparc...

Author: ebotcazou
Date: Fri Dec 16 23:37:48 2011
New Revision: 182420

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=182420
Log:
	* config/sparc/sparc.md (UNSPEC_FRAME_BLOCKAGE): New constant.
	(frame_blockage): New expander.
	(frame_blockage<P:mode>): New instruction.
	* config/sparc/sparc.c (sparc_expand_prologue): When the sequence of
	instructions establishing the frame isn't atomic, emit frame blockage.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/sparc/sparc.c
    trunk/gcc/config/sparc/sparc.md

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