tree-tailcall.c (process_assignment): Don't check if a multiplication or an addition are already present.

2009-09-21  Giuseppe Scrivano <gscrivano@gnu.org>

	* tree-tailcall.c (process_assignment): Don't check if a multiplication
	or an addition are already present.
	(find_tail_calls): Combine multiple additions and multiplications.
	(adjust_accumulator_values): Emit accumulators.

testsuite:
2009-09-21  Giuseppe Scrivano <gscrivano@gnu.org>

	* gcc.dg/tree-ssa/tailrecursion-6.c: New file.

From-SVN: r151935