[Bug tree-optimization/86204] [9 Regression] wrong strlen result after prior strnlen

[msebor at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86204

Martin Sebor  changed:

   What|Removed |Added

 Status|ASSIGNED|RESOLVED
 Resolution|--- |FIXED

--- Comment #3 from Martin Sebor  ---
Committed in r262114.

[Bug tree-optimization/86204] [9 Regression] wrong strlen result after prior strnlen

[msebor at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86204

--- Comment #2 from Martin Sebor  ---
Author: msebor
Date: Mon Jun 25 20:46:45 2018
New Revision: 262114

URL: https://gcc.gnu.org/viewcvs?rev=262114=gcc=rev
Log:
PR tree-optimization/86204 -  wrong strlen result after prior strnlen

gcc/ChangeLog:

PR tree-optimization/86204
* tree-ssa-strlen.c (handle_builtin_strlen): Avoid storing
a strnlen result if it's less than the length of the string.

gcc/testsuite/ChangeLog:

PR tree-optimization/86204
* gcc.dg/strlenopt-46.c: New test.


Added:
trunk/gcc/testsuite/gcc.dg/strlenopt-46.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-ssa-strlen.c

[Bug tree-optimization/86204] [9 Regression] wrong strlen result after prior strnlen

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86204

Richard Biener  changed:

   What|Removed |Added

Version|8.0 |9.0
   Target Milestone|--- |9.0

[Bug tree-optimization/86204] [9 Regression] wrong strlen result after prior strnlen

[msebor at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86204

--- Comment #1 from Martin Sebor  ---
Patch: https://gcc.gnu.org/ml/gcc-patches/2018-06/msg01087.html

[Bug tree-optimization/86204] [9 Regression] wrong strlen result after prior strnlen

[msebor at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86204

Martin Sebor  changed:

   What|Removed |Added

   Keywords||wrong-code
 Status|UNCONFIRMED |ASSIGNED
   Last reconfirmed||2018-06-18
 Blocks||83819
   Assignee|unassigned at gcc dot gnu.org  |msebor at gcc dot 
gnu.org
 Ever confirmed|0   |1


Referenced Bugs:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83819
[Bug 83819] [meta-bug] missing strlen optimizations