[LLVMbugs] [Bug 1424] NEW: infinite recursion in scavengeregister

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=1424

           Summary: infinite recursion in scavengeregister
           Product: libraries
           Version: 2.0
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Common Code Generator Code
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: sabre at nondot.org
                CC: evan.cheng at apple.com


Get the example from PR1423 (the optimized bc file), run this command:
llc attachment.cgi -o t.s -time-passes -f -fast

You get an infinite recursion:
#6132 0x0020e575 in llvm::RegScavenger::scavengeRegister ()
#6133 0x000356f5 in llvm::ARMRegisterInfo::eliminateFrameIndex ()
#6134 0x0020e575 in llvm::RegScavenger::scavengeRegister ()
#6135 0x000356f5 in llvm::ARMRegisterInfo::eliminateFrameIndex ()
#6136 0x0020e575 in llvm::RegScavenger::scavengeRegister ()
#6137 0x000356f5 in llvm::ARMRegisterInfo::eliminateFrameIndex ()

This seems to depend on -fast.

-Chris



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