[LLVMbugs] [Bug 6260] New: llc crash - assertion " Ran out of registers during register allocation!"

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=6260

           Summary: llc crash - assertion "Ran out of registers during
                    register allocation!"
           Product: new-bugs
           Version: trunk
          Platform: PC
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: new bugs
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: ddunkle at arxan.com
                CC: llvmbugs at cs.uiuc.edu


Created an attachment (id=4200)
 --> (http://llvm.org/bugs/attachment.cgi?id=4200)
simplified bugpoint "bc" file

We are using this version of llc:

Low Level Virtual Machine (http://llvm.org/):
  llvm version 2.7svn
  Optimized build with assertions.
  Built Feb  4 2010 (14:30:07).
  Host: i386-apple-darwin9
  Host CPU: penryn

We use llc in this fashion:

llc -O0 bugpoint-reduced-simplified.bc

If the -O0 is removed, or -O3 is specified, or if -regalloc=local is specified
the assertion goes away and llc completes. So it seems specific to -O0. 

It is necessary for us to use -O0 for product purposes.

I will attach the simplified bugpoint output.


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