[llvm-bugs] [Bug 39756] New: PPCTLSDynamicCallPass needs to be preceded by LiveVariables otherwise stage 2 clang build fails

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https://bugs.llvm.org/show_bug.cgi?id=39756

            Bug ID: 39756
           Summary: PPCTLSDynamicCallPass needs to be preceded by
                    LiveVariables otherwise stage 2 clang build fails
           Product: libraries
           Version: trunk
          Hardware: Other
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: Backend: PowerPC
          Assignee: unassignedbugs at nondot.org
          Reporter: stefanp at ca.ibm.com
                CC: llvm-bugs at lists.llvm.org, nemanja.i.ibm at gmail.com

Currently in PPCTargetMachine.cpp we have the pass PPCTLSDynamicCallPass
preceded by LiveVariables. If the LiveVariables pass is removed then stage 2
clang fails to build. 
The dependency should not be required. 
Should investigate the failure to find out where the bug comes from and
possibly remove the dependency.

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