[LLVMbugs] [Bug 1715] New: getAnalysis<someimmutablepass> doesn' t work from doInitialization(Module&)

bugzilla-daemon at cs.uiuc.edu bugzilla-daemon at cs.uiuc.edu
Sat Sep 29 19:41:29 PDT 2007


           Summary: getAnalysis<someimmutablepass> doesn't work from
           Product: libraries
           Version: trunk
          Platform: Macintosh
        OS/Version: MacOS X
            Status: NEW
          Severity: minor
          Priority: P2
         Component: Core LLVM classes
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: gordonhenriksen at mac.com
                CC: llvmbugs at cs.uiuc.edu

Quirkily, using getAnalysisToUpdate<someimmutablepass> instead does work.

AsmPrinter::doInitialization uses this behavior to get ahold of
MachineModuleInfo, which may not be present at all, so getAnalysisToUpdate is

However, I needed to unconditionally get a handle onto an ImmutablePass, and so
used getAnalysis instead. It failed an assertion that the pass was not required
(which was false).

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