[LLVMbugs] [Bug 13977] New: Backend options cause multi-threading issues

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=13977

             Bug #: 13977
           Summary: Backend options cause multi-threading issues
           Product: clang
           Version: unspecified
          Platform: PC
        OS/Version: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: -New Bugs
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: djasper at google.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified


If clang code generation is used by a library, e.g. through LibTooling, backend
options such as -mstackrealign are not reset between invocations, e.g. of
FrontendActions. This can lead to undesired behavior and errors (the backend
complains on a second attempt to set -mstackrealign as it is already set).

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