[Bug tree-optimization/86042] [8 Regression] missing strlen optimization after second strcpy

[msebor at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86042

Martin Sebor <msebor at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |missed-optimization
           See Also|                            |https://gcc.gnu.org/bugzill
                   |                            |a/show_bug.cgi?id=83501
             Blocks|                            |83819

--- Comment #1 from Martin Sebor <msebor at gcc dot gnu.org> ---
Bisection points to r255197 (see also bug 83501 for another regression related
to this change):

2017-11-28  Richard Biener  <rguenther@suse.de>

        PR middle-end/83141
        * gimple-fold.c (gimple_fold_builtin_memory_op): For aggregate
        copies generated from memcpy use a character array as reference
        type.


Referenced Bugs:

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