https://bugs.llvm.org/show_bug.cgi?id=32646
Bug ID: 32646
Summary: UBSAN binary segfaults on correct UB-free test case.
Product: libraries
Version: trunk
Hardware: PC
OS: All
Status: NEW
Severity: enhancement
Priority: P
Component: Miscellaneous Instrumentation passes
Assignee: unassignedb...@nondot.org
Reporter: babo...@gmail.com
CC: llvm-bugs@lists.llvm.org
Created attachment 18280
--> https://bugs.llvm.org/attachment.cgi?id=18280&action=edit
reproducer
I observe this bug quite frequently and it seems that this happens only on big
test cases. Also I failed to reduce the test case, which also supports my
assumption that this is a bug, which shows up only on big tests. Probably
int/size_t bug somewhere in UBSAN implementation?
The test itself is auto-generated test, which doesn't contain undefined
behavior.
Execute "run.sh" from attached archive - it will compile the test case and run
it.
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