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[Bug tree-optimization/81196] Number of iterations found for p!=q but not for p<q
- From: "amker at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 29 Jun 2017 10:42:00 +0000
- Subject: [Bug tree-optimization/81196] Number of iterations found for p!=q but not for p<q
- Auto-submitted: auto-generated
- References: <bug-81196-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81196
--- Comment #8 from amker at gcc dot gnu.org ---
Author: amker
Date: Thu Jun 29 10:41:28 2017
New Revision: 249778
URL: https://gcc.gnu.org/viewcvs?rev=249778&root=gcc&view=rev
Log:
PR tree-optimization/81196
* tree-ssa-loop-niter.c (number_of_iterations_cond): Handle loop
exit condition comparing two IVs.
gcc/testsuite
* gcc.dg/vect/pr81196.c: New.
Added:
trunk/gcc/testsuite/gcc.dg/vect/pr81196.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-ssa-loop-niter.c