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b1d0774f3f
Make it possible that TryToSimplifyUncondBranchFromEmptyBlock merges empty basic block including lifetime intrinsics as well as phi nodes and unconditional branch into its successor or predecessor(s). If successor of empty block has single predecessor, all contents including lifetime intrinsics are sinked into the successor. Otherwise, they are hoisted into its predecessor(s) and then merged into the predecessor(s). Patch by Josh Yoon <josh.yoon@samsung.com>! Differential Revision: http://reviews.llvm.org/D19257 llvm-svn: 268254 |
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llvm-c |