2011-09-29  Jiangning Liu  <jiangning.liu@arm.com>

	* gcc/testsuite/gcc.dg/tree-ssa/predcom-1.c: Explicitly turn on
	loop unroll and set max unroll times to 8.
	* gcc/testsuite/gcc.dg/tree-ssa/predcom-2.c: Likewise.
	* gcc/testsuite/gcc.dg/tree-ssa/predcom-3.c: Likewise.
	* gcc/testsuite/gcc.dg/tree-ssa/predcom-4.c: Likewise.
	* gcc/testsuite/gcc.dg/tree-ssa/predcom-5.c: Likewise.

From-SVN: r179330