[PATCH] Fix for PR63595

[Martin Liška]

Hello.

Following patch contains addition of PHI result comparison in IPA ICF.
Boostrap works on x86_64-linux-pc, no regression observed.

Ready for trunk?
Thanks,
Martin
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gcc/testsuite/ChangeLog:

2014-10-24  Martin Liska  <mliska@suse.cz>

	* gcc.dg/ipa/pr63595.c: New test.


gcc/ChangeLog:

2014-10-24  Martin Liska  <mliska@suse.cz>

	* ipa-icf.c (sem_function::compare_phi_node): PHI result comparison
	added.
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