[LLVMbugs] [Bug 6905] New: Conservative Unwind Pass

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Fri Apr 23 13:00:13 PDT 2010


           Summary: Conservative Unwind Pass
           Product: libraries
           Version: trunk
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Transformation Utilities
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: alexmac at adobe.com
                CC: llvmbugs at cs.uiuc.edu

Created an attachment (id=4723)
 --> (http://llvm.org/bugs/attachment.cgi?id=4723)
conservative unwind pass

This file implements a simple interprocedural pass which walks the call-graph,
conservatively clearing and setting the nounwind attribute of functions and
function calls.  A function is assumed to throw an exception if it contains an
unwind instruction, an indirect call, or a call to an external function. This
pass is implemented as a bottom-up traversal of the call-graph.

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