re PR testsuite/21443 (Most testcases with -fdump-tree-store_ccp aren't actually testing CCP itself.)

	PR testsuite/21443
	* gcc.dg/tree-ssa/20030731-2.c, gcc.dg/tree-ssa/20030917-1.c,
	gcc.dg/tree-ssa/20030917-3.c, gcc.dg/tree-ssa/ssa-ccp-1.c,
	gcc.dg/tree-ssa/ssa-ccp-2.c, gcc.dg/tree-ssa/ssa-ccp-3.c,
	gcc.dg/tree-ssa/ssa-ccp-7.c, gcc.dg/tree-ssa/ssa-ccp-9.c:
	Change -O1 to -O2.
	* gcc.dg/tree-ssa/20040721-1.c: Change -O1 to -O2.  Add
	-fno-tree-dominator-opts.

From-SVN: r99493