re PR tree-optimization/31866 (ICE with tree check error: expected ssa_name, have var_decl in create_outofssa_var_map)

	PR tree-optimization/31866
	* tree-ssa-coalesce.c (create_outofssa_var_map): Do nothing
	if ASM_EXPR's input is not a SSA_NAME.

	* gcc.dg/pr31866.c: New test.

From-SVN: r125919