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63d2a1d96b
This reverts r283867. This appears to be an infinite loop: while (HiRegToSave != AllHighRegs.end() && CopyReg != AllCopyRegs.end()) { if (HiRegsToSave.count(*HiRegToSave)) { ... CopyReg = findNextOrderedReg(++CopyReg, CopyRegs, AllCopyRegs.end()); HiRegToSave = findNextOrderedReg(++HiRegToSave, HiRegsToSave, AllHighRegs.end()); } } git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@283938 91177308-0d34-0410-b5e6-96231b3b80d8