2013-10-29  Marc Glisse  <marc.glisse@inria.fr>

	PR tree-optimization/19831
gcc/
	* tree-ssa-alias.c (stmt_kills_ref_p_1): Handle BUILT_IN_FREE.

gcc/testsuite/
	* gcc.dg/tree-ssa/alias-25.c: New file.

From-SVN: r204160