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[Bug tree-optimization/80032] [6/7 Regression] C++ excessive stack usage (no stack reuse)
- From: "rguenth at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 21 Mar 2017 11:44:17 +0000
- Subject: [Bug tree-optimization/80032] [6/7 Regression] C++ excessive stack usage (no stack reuse)
- Auto-submitted: auto-generated
- References: <bug-80032-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80032
--- Comment #10 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue Mar 21 11:43:45 2017
New Revision: 246314
URL: https://gcc.gnu.org/viewcvs?rev=246314&root=gcc&view=rev
Log:
2017-03-21 Richard Biener <rguenther@suse.de>
PR tree-optimization/80032
* gimplify.c (gimple_push_cleanup): Add force_uncond parameter,
if set force the cleanup to happen unconditionally.
(gimplify_target_expr): Push inserted clobbers with force_uncond
to avoid them being removed by control-dependent DCE.
* g++.dg/opt/pr80032.C: New testcase.
Added:
trunk/gcc/testsuite/g++.dg/opt/pr80032.C
Modified:
trunk/gcc/ChangeLog
trunk/gcc/gimplify.c
trunk/gcc/testsuite/ChangeLog