[LLVMbugs] [Bug 2756] infinite loop in instcombine after mem2reg

bugzilla-daemon at cs.uiuc.edu bugzilla-daemon at cs.uiuc.edu
Tue Sep 2 23:26:25 PDT 2008


http://llvm.org/bugs/show_bug.cgi?id=2756


Nick Lewycky <nicholas at mxc.ca> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED




--- Comment #3 from Nick Lewycky <nicholas at mxc.ca>  2008-09-03 01:26:24 ---
Fixed in r55690 by disabling that transform on vectors.

Let me know if you think this optz'n (X % -Y --> X % Y) is important for your
vector code, let me know and I'll add the appropriate code. Apply optz'n when #
of negative elements > # of strictly-positive elements.


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