ChangeLog
        PR tree-optimization/26969
        * tree-vect-analyze.c (vect_analyze_loop_form): Add check of latch
         witch an empty list of PHIs.

testsuite/Changelog:
        PR tree-optimizations/26969
        * gcc.dg/vect/vect.exp: Compile tests prefixed with
	"unswitch-loops" with -funswitch-loops.
        * gcc.dg/vect/unswitch-loops-pr26969.c: New test.

From-SVN: r115995