[PATCH] Factor out gimple_dont_merge_p

[Tom de Vries]

Richard,

This patch factors out gimple_dont_merge_p from gimple_equal_p and find_duplicate.

Bootstrapped and regtested on x86_64.

OK for trunk?

Thanks,
- Tom

2013-11-06  Tom de Vries  <tom@codesourcery.com>

	* tree-ssa-tail-merge.c (gimple_dont_merge_p): Factor function out
	of ...
	(gimple_equal_p): ... here, and ...
	(find_duplicate): ... here.  Use gimple_dont_merge_p.
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