[LLVMbugs] [Bug 310] [tailduplicate] DemoteRegToStack breaks SSA form

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.cs.uiuc.edu/bugs/show_bug.cgi?id=310

sabre at nondot.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |minor
             Status|NEW                         |RESOLVED
          Component|Scalar Optimizations        |Transformation Utilities
         Resolution|                            |FIXED
            Summary|[tailduplicate] Tail        |[tailduplicate]
                   |duplication crash           |DemoteRegToStack breaks SSA
                   |                            |form



------- Additional Comments From sabre at nondot.org  2004-04-01 14:30 -------
Fixed, here's the patch:
http://mail.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20040329/013415.html

Testcase here: TailDup/2004-04-01-DemoteRegToStack.llx

I'm marking this as a low-priority bug because it never would have caused a
problem in gccas, it only crashed because I didn't run the mem2reg pass after
it.  It's still a bug, just not one that would realistically occur in the wild.

-Chris



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