2007-10-19 Sebastian Pop <sebastian.pop@amd.com>
PR tree-optimization/23820
PR tree-optimization/24309
PR tree-optimization/33766
* testsuite/gcc.dg/tree-ssa/pr23820.c: New.
* testsuite/gcc.dg/tree-ssa/pr24309.c: New.
* testsuite/gcc.dg/tree-ssa/pr33766.c: New.
* testsuite/gcc.dg/tree-ssa/ltrans-3.c: XFAILed.
* tree-loop-linear.c (perfect_loop_nest_depth): New.
(linear_transform_loops): Use perfect_loop_nest_depth.
* lambda-code.c (perfect_nest_p): Outer loops in perfect nests
should have a single condition: their exit.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@129494
138bc75d-0d04-0410-961f-
82ee72b054a4