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[Bug tree-optimization/80487] redundant memset/strncpy calls not eliminated
- From: "glisse at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Sat, 29 Apr 2017 14:39:57 +0000
- Subject: [Bug tree-optimization/80487] redundant memset/strncpy calls not eliminated
- Auto-submitted: auto-generated
- References: <bug-80487-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80487
--- Comment #3 from Marc Glisse <glisse at gcc dot gnu.org> ---
Author: glisse
Date: Sat Apr 29 14:39:25 2017
New Revision: 247408
URL: https://gcc.gnu.org/viewcvs?rev=247408&root=gcc&view=rev
Log:
Add st[pr]ncpy to stmt_kills_ref_p
2017-04-29 Marc Glisse <marc.glisse@inria.fr>
PR tree-optimization/80487
gcc/
* tree-ssa-alias.c (stmt_kills_ref_p): Handle stpncpy and strncpy.
gcc/testsuite/
* gcc.dg/tree-ssa/strncpy-1.c: New file.
Added:
trunk/gcc/testsuite/gcc.dg/tree-ssa/strncpy-1.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-ssa-alias.c