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![Jakob Stoklund Olesen](/assets/img/avatar_default.png)
I'll let the buildbots determine the compile time improvements from this change, but 464.h264ref has 5% faster codegen at -O2. This patch does cause some assembly changes. Branch folding can make different decisions about calls with dead return values. CriticalAntiDepBreaker may choose different registers because its liveness tracking is affected. MachineCopyPropagation may sometimes leave a dead copy behind. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151331 91177308-0d34-0410-b5e6-96231b3b80d8
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