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ca526959c1
Add physical register defs to instructions used from stackified instructions to prevent them from being scheduled into the middle of a stack sequence. This is a conservative measure which may be loosened in the future. Differential Revision: http://reviews.llvm.org/D15252 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254811 91177308-0d34-0410-b5e6-96231b3b80d8