PR tree-optimization/47679
	* tree-ssa-dom.c (record_temporary_equivalences): No longer static.
	* tree-ssa-dom.h (record_temporary_equivalences): Add prototype.
	* tree-ssa-threadedge.c: Include tree-ssa-dom.h.
	(thread_through_normal_block): Use record_temporary_equivalences.

        PR tree-optimization/47679
	* g++.dg/warn/Wuninitialized-6.C: New test.

From-SVN: r227942