https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82353
Bug ID: 82353
Summary: runtime ubsan crash
Product: gcc
Version: 8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: sanitizer
Assignee: unassigned at gcc dot gnu.org
Reporter: babokin at gmail dot com
CC: dodji at gcc dot gnu.org, dvyukov at gcc dot gnu.org,
jakub at gcc dot gnu.org, kcc at gcc dot gnu.org, marxin at
gcc dot gnu.org
Target Milestone: ---
Created attachment 42255
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=42255&action=edit
reduced test case
GCC trunk, rev 253244, x86_64.
> g++ -std=c++11 -fsanitize=undefined -fno-sanitize-recover=undefined -w -O2
> ff.cpp dd.cpp -o out
> ./out
ff.cpp:20:27: runtime error: pointer index expression with base 0x0000006022f0
overflowed to 0x000000602300
Test case was reduced from a larger UB-free program.
I failed to reduce test case to a single file reproducer.
