[LLVMbugs] [Bug 1616] large array initializers extremely slow

bugzilla-daemon at cs.uiuc.edu bugzilla-daemon at cs.uiuc.edu
Mon Aug 20 17:56:12 PDT 2007


http://llvm.org/bugs/show_bug.cgi?id=1616


Chris Lattner <sabre at nondot.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
          Component|new bugs                    |Core LLVM classes
           Keywords|                            |slow-compile
            Product|new-bugs                    |libraries
         Resolution|                            |FIXED
   Target Milestone|---                         |2.1
            Version|unspecified                 |1.0




--- Comment #1 from Chris Lattner <sabre at nondot.org>  2007-08-20 19:56:11 ---
This is due to N^2 behavior in VMCore.  Fixed with this patch:
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070820/053012.html

On my G5 machine with a debug build, time to disassemble the .bc file went from
852s to 0.19s.

-Chris


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