Revert r314892

It was accidentally merged.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_50@314893 91177308-0d34-0410-b5e6-96231b3b80d8

Author: dylanmckay

lib/Target/AVR/AVRInstrInfo.cpp

@@ -537,7 +537,8 @@ bool AVRInstrInfo::isBranchOffsetInRange(unsigned BranchOp,
     llvm_unreachable("unexpected opcode!");
   case AVR::JMPk:
   case AVR::CALLk:
-    return true;
+    assert(BrOffset >= 0 && "offset must be absolute address");
+    return isUIntN(16, BrOffset);
   case AVR::RCALLk:
   case AVR::RJMPk:
     return isIntN(13, BrOffset);
@@ -555,20 +556,5 @@ bool AVRInstrInfo::isBranchOffsetInRange(unsigned BranchOp,
   }
 }
 
-unsigned AVRInstrInfo::insertIndirectBranch(MachineBasicBlock &MBB,
-                                            MachineBasicBlock &NewDestBB,
-                                            const DebugLoc &DL,
-                                            int64_t BrOffset,
-                                            RegScavenger *RS) const {
-    // This method inserts a *direct* branch (JMP), despite its name.
-    // LLVM calls this method to fixup unconditional branches; it never calls
-    // insertBranch or some hypothetical "insertDirectBranch".
-    // See lib/CodeGen/RegisterRelaxation.cpp for details.
-    // We end up here when a jump is too long for a RJMP instruction.
-    auto &MI = *BuildMI(&MBB, DL, get(AVR::JMPk)).addMBB(&NewDestBB);
-
-    return getInstSizeInBytes(MI);
-}
-
 } // end of namespace llvm
 

lib/Target/AVR/AVRInstrInfo.h

@@ -107,12 +107,6 @@ class AVRInstrInfo : public AVRGenInstrInfo {
 
   bool isBranchOffsetInRange(unsigned BranchOpc,
                              int64_t BrOffset) const override;
-
-  unsigned insertIndirectBranch(MachineBasicBlock &MBB,
-                                MachineBasicBlock &NewDestBB,
-                                const DebugLoc &DL,
-                                int64_t BrOffset,
-                                RegScavenger *RS) const override;
 private:
   const AVRRegisterInfo RI;
 };