[PATCH 2/n] Handle conditional compare in uninit pass

[Zhenqiang Chen]

Hi,

The attached patch enables uninit pass to handle conditional compare (CCMP).
CCMP is a combine of BIT_AND_EXPR/BIT_IOR_EXPR and CMP expression. The codes
are similar with those to handle BIT_AND_EXPR/BIT_IOR_EXPR and CMP
expression.

Bootstrap on x86-64 and ARM Chromebook.
No ICE and runtime errors in regression tests.
Not test cases prefixed with uninit-pred- fail.

Thanks!
-Zhenqiang

ChangeLog:
2013-08-21  Zhenqiang Chen  <zhenqiang.chen@linaro.org>

	* tree-ssa-uninit.c (normalize_cond_1, normalize_cond,
	is_gcond_subset_of, is_norm_cond_subset_of): Handle conditional
	compare.
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