[llvm-bugs] [Bug 42814] New: Runtime error with ubsan opt

via llvm-bugs llvm-bugs at lists.llvm.org
Mon Jul 29 10:35:59 PDT 2019


https://bugs.llvm.org/show_bug.cgi?id=42814

            Bug ID: 42814
           Summary: Runtime error with ubsan opt
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Backend: X86
          Assignee: unassignedbugs at nondot.org
          Reporter: alina.sbirlea at gmail.com
                CC: craig.topper at gmail.com, llvm-bugs at lists.llvm.org,
                    llvm-dev at redking.me.uk, spatel+llvm at rotateright.com

Created attachment 22310
  --> https://bugs.llvm.org/attachment.cgi?id=22310&action=edit
Reproducer

opt -sccp ubsan_error.ll

lib/Analysis/ConstantFolding.cpp:547:14: runtime error: signed integer
overflow: 9223372036854775807 + 1 cannot be represented in type 'long'

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