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4f92b5e616
The fpscr register contains both flags (set by FP operations/comparisons) and control bits. The control bits (FPSCR) should be reserved, since they're always available and needn't be defined before use. The flag bits (FPSCR_NZCV) should like to be unreserved so they can be hoisted by MachineCSE. This fixes PR12165. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152076 91177308-0d34-0410-b5e6-96231b3b80d8
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