[llvm-bugs] [Bug 43881] New: [JumpThreading] compilation hang with -jump-threading-across-loop-headers

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=43881

            Bug ID: 43881
           Summary: [JumpThreading]  compilation hang with
                    -jump-threading-across-loop-headers
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Scalar Optimizations
          Assignee: unassignedbugs at nondot.org
          Reporter: paulsson at linux.vnet.ibm.com
                CC: llvm-bugs at lists.llvm.org

Created attachment 22764
  --> https://bugs.llvm.org/attachment.cgi?id=22764&action=edit
reduced testcase

clang -cc1 -triple s390x-ibm-linux -S -O3 -w -mllvm
-jump-threading-across-loop-headers -o - -x ir tc_jumphtreadloopheaders.bc
-emit-llvm

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