Unfortunately, anders-aa was completely broken in LLVM 1.3, and wasn't noticed until after it went out (because it's not used by anything by default). Here's a patch that restores it to functionality: http://mail.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20040816/017186.html -Chris
Fixed, patch here: http://mail.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20040816/017186.html Testcase here: test/Regression/Analysis/Andersens/trivialtest.ll -Chris