r232548 - in /trunk/gcc: ChangeLog testsuite/Ch...

[law@gcc.gnu.org]

Author: law
Date: Tue Jan 19 06:43:54 2016
New Revision: 232548

URL: https://gcc.gnu.org/viewcvs?rev=232548&root=gcc&view=rev
Log:
2016-01-18  Jeff Law  <law@redhat.com>

	PR tree-optimization/69320
	* tree-ssa-dom.c (record_edge_info): For comparisons against a boolean
	ranged object, do nothing if the RHS constant is not [0..1].
	(optimize_stmt): Comparing a boolean ranged object against a
	constant outside [0..1] results in a compile-time constant.

	* tree-ssanames.c (ssa_name_has_boolean_range): Remove unnecessary
	test.

	PR tree-optimization/69320
	* gcc.c-torture/pr69320-1.c: New test.
	* gcc.c-torture/pr69320-2.c: New test.
	* gcc.c-torture/pr69320-3.c: New test.
	* gcc.c-torture/pr69320-4.c: New test.

Added:
    trunk/gcc/testsuite/gcc.c-torture/execute/pr69320-1.c
    trunk/gcc/testsuite/gcc.c-torture/execute/pr69320-2.c
    trunk/gcc/testsuite/gcc.c-torture/execute/pr69320-3.c
    trunk/gcc/testsuite/gcc.c-torture/execute/pr69320-4.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-dom.c
    trunk/gcc/tree-ssanames.c