https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91579
Martin Jambor <jamborm at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #2 from Martin Jambor <jamborm at gcc dot gnu.org> ---
This has been fixed with the following, sorry about messing up the ChangeLog PR
reference:
Author: jamborm
Date: Fri Aug 30 08:08:42 2019
New Revision: 275062
URL: https://gcc.gnu.org/viewcvs?rev=275062&root=gcc&view=rev
Log:
[PR 91579] Avoid creating redundant PHI nodes in tail-call pass
2019-08-30 Martin Jambor <mjam...@suse.cz>
tree-optimization/91579
* tree-tailcall.c (tailr_arg_needs_copy): New variable.
(find_tail_calls): Allocate tailr_arg_needs_copy and set its bits as
appropriate.
(arg_needs_copy_p): Removed.
(eliminate_tail_call): Test tailr_arg_needs_copy instead of calling
arg_needs_copy_p.
(tree_optimize_tail_calls_1): Likewise. Free tailr_arg_needs_copy.
testsuite/
* gcc.dg/tree-ssa/pr91579.c: New test.
Added:
trunk/gcc/testsuite/gcc.dg/tree-ssa/pr91579.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-tailcall.c
