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d4ac46318e
This reverts part of r300656, which caused a regression in propagateMassToSuccessors by counting edges n^2 times, where n is the number of edges from the source basic block to the same successor basic block. The result was both incorrect and very slow to compute for large values of n (e.g. switches with multiple cases that go to the same basic block). Patch by Andrew Scheidecker! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@320208 91177308-0d34-0410-b5e6-96231b3b80d8