re PR tree-optimization/83298 (wrong code at -O1, -O2 and -O3 on x86_64-linux-gnu)

re PR tree-optimization/83298 (wrong code at -O1, -O2 and -O3 on x86_64-linux-gnu)

	PR tree-optimization/83298
	PR tree-optimization/83362
	PR tree-optimization/83383
	* gimple-ssa-evrp-analyze.h (class evrp_range_analyzer): Make
	push_value_range a public interface.  Add new argument to
	record_ranges_from_stmt.
	* gimple-ssa-evrp-analyze.c
	(evrp_range_analyzer::record_ranges_from_stmt): Add new argument.
	Update comments.  Handle recording temporary equivalences.
	* tree-ssa-dom.c (dom_opt_opt_walker::before_dom_children): Add
	new argument to call to evrp_range_analyzer::record_ranges_from_stmt.
	* gimple-ssa-evrp.c (evrp_dom_walker::before_dom_children): Likewise.
	* tree-ssa-threadedge.c: Include alloc-pool.h, vr-values.h and
	gimple-ssa-evrp-analyze.h.
	(record_temporary_equivalences_from_phis): Add new argument.  When
	the PHI arg is an SSA_NAME, set the result's range to the range
	of the PHI arg.
	(record_temporary_equivalences_from_stmts_at_dest): Record ranges
	from statements too.
	(thread_through_normal_block): Accept new argument, evrp_range_analyzer.
	Pass it down to children as needed.
	(thread_outgoing_edges): Likewise.
	(thread_across_edge): Likewise.   Push/pop range state as needed.
	* tree-ssa-threadedge.h (thread_outgoing_edges): Update prototype.

	PR tree-optimization/83298
	PR tree-optimization/83362
	PR tree-optimization/83383
	* gcc.c-torture/execute/pr83298.c: New test.
	* gcc.c-torture/execute/pr83362.c New test.
	* gcc.c-torture/execute/pr83383.c New test.

From-SVN: r255593