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Hi, We have a benchmark where there are 128 MAD computations in a loop. (See the attached IR.) Creating SCEVs for these expressions takes a long time, making the compile time too long. E.g., running opt with the "indvars" pass only takes 45 seconds. It seems that the majority of the time is spent in comparing the complexity of the expression operands to sort them. I realize that the

I got the following error while compiling llvm and clang under cygwin. /cygdrive/c/Users/brianherman/Desktop/llvm/llvm-3.3.src/Release+Asserts/lib/libLLVMMCJIT.a(SectionMemoryManager.o):SectionMemoryManager.cpp:(.text+0x3b): undefined reference to `__register_frame'

...o limit the size of SCEV expressions, but I also don’t have a brilliant idea for how to do it at the moment (other than the obvious depth cutoff). -Andy -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20130730/8c20dfb6/attachment.html>