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Summary: Reverse iteration can be turned on, by default, by setting -DLLVM_REVERSE_ITERATION:BOOL=ON during cmake. With this enabled, we can uncover lots of cases of non-determinism in codegen by simply running our tests (without any other change). We can then setup a buildbot which will have this turned on by default. Initially, a lot of unit tests will fail in this configuration. Once we start fixing non-determinism issues, we can gradually make this a blocker for patches. Reviewers: davide, dblaikie, mehdi_amini, dberlin Reviewed By: dblaikie Subscribers: probinson, mgorny, llvm-commits Differential Revision: https://reviews.llvm.org/D33908 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@304757 91177308-0d34-0410-b5e6-96231b3b80d8
See docs/CMake.html for instructions on how to build LLVM with CMake.