re PR tree-optimization/51362 (ICE: SIGFPE (division by zero) in good_cloning_opportunity_p at ipa-cp.c:2401)

2011-12-13  Martin Jambor  <mjambor@suse.cz>

	PR tree-optimization/51362
	* ipa-cp.c (estimate_local_effects): When estimated size of a
	specialized clone is zero, bump it to one.

	* testsuite/gcc.dg/ipa/pr51362.c: New test.

From-SVN: r182288