[Bug middle-end/83684] New: [5 Regression] ICE in maybe_diag_overlap, at gimple-ssa-warn-restrict.c:1371

[doko at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83684

            Bug ID: 83684
           Summary: [5 Regression] ICE in maybe_diag_overlap, at
                    gimple-ssa-warn-restrict.c:1371
           Product: gcc
           Version: 8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
          Assignee: unassigned at gcc dot gnu.org
          Reporter: doko at gcc dot gnu.org
  Target Milestone: ---

Created attachment 43036
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=43036&action=edit
preprocessed source

seen building courier 0.78 on x86_64-linux-gnu, r256068.

while I get the preprocessed source from the ICE, I'm unable to reproduce this
using the preprocessed source.

libtool: compile:  gcc -DHAVE_CONFIG_H -I. -Wdate-time -D_FORTIFY_SOURCE=2 -g
-O2 -fdebug-prefix-map=/home/
packages/tmp/gcc/courier-0.78.0=. -fstack-protector-strong -Wformat
-Werror=format-security -Wall -pedantic
 -Wall -I./.. -I.. -I./../.. -I../.. -c maildirnewshared.c  -fPIC -DPIC -o
.libs/maildirnewshared.o
during GIMPLE pass: strlen
maildirnewshared.c: In function 'maildir_newshared_next':
maildirnewshared.c:53:5: internal compiler error: in maybe_diag_overlap, at
gimple-ssa-warn-restrict.c:1371
 int maildir_newshared_next(struct maildir_newshared_enum_cb *info,
     ^~~~~~~~~~~~~~~~~~~~~~
Please submit a full bug report,
with preprocessed source if appropriate.