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Chris Lattner 92b9906199 Two fixes:
1. Fix a REALLY nasty cyclic replacement issue that Anshu discovered, causing
   nondeterminstic crashes and memory corruption.
2. For performance, don't go inserting constantexpr casts of GV pointers.

This should definitely go into 1.3

llvm-svn: 15568
2004-08-08 01:30:07 +00:00
llvm Two fixes: 2004-08-08 01:30:07 +00:00