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archived-llvm/lib/Transforms
Sebastian Pop 2970c2210e GVN-hoist: use a DFS numbering of instructions (PR28670)
Instead of DFS numbering basic blocks we now DFS number instructions that avoids
the costly operation of which instruction comes first in a basic block.

Patch mostly written by Daniel Berlin.

Differential Revision: https://reviews.llvm.org/D22777

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@276714 91177308-0d34-0410-b5e6-96231b3b80d8
2016-07-26 00:15:10 +00:00
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