re PR tree-optimization/70586 (wrong code at -O2 and -O3 on x86_64-linux-gnu in 32-bit and 64-bit modes)

	PR tree-optimization/70586
	* tree-ssa-ifcombine.c (bb_no_side_effects_p): Return false
	for any calls.

	* gcc.c-torture/execute/pr70586.c: New test.

From-SVN: r234849