re PR tree-optimization/53703 (verify_ssa: definition in block 105 does not dominate use in block 103)

gcc:

2012-06-18  Bill Schmidt  <wschmidt@linux.ibm.com>

	PR tree-optimization/53703
	* tree-ssa-phiopt.c (hoist_adjacent_loads): Skip virtual phis;
	correctly set bb_for_def[12].

gcc/testsuite:

2012-06-18  Bill Schmidt  <wschmidt@linux.ibm.com>

	PR tree-optimization/53703
	* gcc.dg/torture/pr53703.c: New test.

From-SVN: r188731