https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79666
Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |wrong-code
Status|UNCONFIRMED |NEW
Last reconfirmed| |2017-02-21
CC| |mpolacek at gcc dot gnu.org
Target Milestone|--- |7.0
Summary|wrong code (SIGFPE) at -O2 |[7 Regression] wrong code
|on x86_64-linux-gnu (in |(SIGFPE) at -O2 on
|both 32-bit and 64-bit |x86_64-linux-gnu (in both
|modes) |32-bit and 64-bit modes)
Ever confirmed|0 |1
--- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Started with
commit 60b349d9881d274f8afcac0063fd21f59ecf572a
Author: rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Fri Aug 12 12:58:15 2016 +0000
2016-08-12 Richard Biener <rguent...@suse.de>
PR tree-optimization/57326
* tree-ssa-pre.c (fully_constant_expression): Handle simplification
returning an SSA name.
(phi_translate_1): When fully_constant_expression returns a NAME
make sure we have a leader for it.
* gcc.dg/tree-ssa/ssa-pre-32.c: New testcase.
* gcc.dg/tree-ssa/loadpre14.c: Adjust.
* gcc.dg/tree-ssa/pr35287.c: Likewise.
* gcc.target/i386/pr45685.c: Likewise.
* gcc.dg/tree-ssa/predcom-1.c: Disable PRE.
* gcc.dg/tree-ssa/predcom-2.c: Likewise.
* gcc.dg/tree-ssa/predcom-3.c: Likewise.
* gcc.dg/tree-ssa/ssa-sink-10.c: Likewise.
* gfortran.dg/pr34163.f90: Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@239414
138bc75d-0d04-0410-961f-82ee72b054a4
