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05a3f9120a
Teach the load store optimizer how to sign extend a result of a load pair when it helps creating more pairs. The rational is that loads are more expensive than sign extensions, so if we gather some in one instruction this is better! <rdar://problem/20072968> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231527 91177308-0d34-0410-b5e6-96231b3b80d8 |
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