PR tree-optimization/81388
commite38da69c76d6fba32debb6525d2b8fab6d497fdf
authoramker <amker@138bc75d-0d04-0410-961f-82ee72b054a4>
Thu, 20 Jul 2017 12:02:19 +0000 (20 12:02 +0000)
committeramker <amker@138bc75d-0d04-0410-961f-82ee72b054a4>
Thu, 20 Jul 2017 12:02:19 +0000 (20 12:02 +0000)
tree4b66df896dfeeb4859f5e87593d22ec46e1c455f
parent2438e5540a34d5302a372485f5f1c8ffa0b02e44
PR tree-optimization/81388
Revert r238585:
2016-07-21  Bin Cheng  <bin.cheng@arm.com>

* tree-ssa-loop-niter.c (number_of_iterations_lt_to_ne): Clean up
by removing computation of may_be_zero.

gcc/testsuite
PR tree-optimization/81388
* gcc.dg/tree-ssa/pr81388-1.c: New test.
* gcc.dg/tree-ssa/pr81388-2.c: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@250384 138bc75d-0d04-0410-961f-82ee72b054a4
gcc/ChangeLog
gcc/testsuite/ChangeLog
gcc/testsuite/gcc.dg/tree-ssa/pr81388-1.c [new file with mode: 0644]
gcc/testsuite/gcc.dg/tree-ssa/pr81388-2.c [new file with mode: 0644]
gcc/tree-ssa-loop-niter.c