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author	Richard Henderson <rth@redhat.com>
	Wed, 30 Nov 2011 16:10:24 +0000 (08:10 -0800)
committer	Richard Henderson <rth@gcc.gnu.org>
	Wed, 30 Nov 2011 16:10:24 +0000 (08:10 -0800)
commit	2e65f38f1bf1f04c530bfeb6b543f084564eec3d
tree	f7ebc47322ba3389b5583ce189866e18f3530ba4	tree \| snapshot
parent	99ee7887c639daad4ae2a9440eef9bab15da58c6	commit \| diff

sparc: Add -mmemory-model command-line option.

* config/sparc/sparc-opts.h (enum sparc_memory_model_type): New.
* config/sparc/sparc.opt (mmemory-model=): New option.
* doc/invoke.texi (Sparc Options): Document it.
* config/sparc/sparc.c (sparc_option_override): Provide default
for sparc_memory_model.
(sparc_emit_membar_for_model): Omit barrier combinations that are
implied by the memory model.

From-SVN: r181853

gcc/ChangeLog		diff \| blob \| blame \| history
gcc/config/sparc/sparc-opts.h		diff \| blob \| blame \| history
gcc/config/sparc/sparc.c		diff \| blob \| blame \| history
gcc/config/sparc/sparc.opt		diff \| blob \| blame \| history
gcc/doc/invoke.texi		diff \| blob \| blame \| history

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