[llvm] [Xtensa] Implement branch analysis. (PR #110959)

[Andrei Safronov via llvm-commits]

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@@ -74,6 +74,37 @@ class XtensaInstrInfo : public XtensaGenInstrInfo {
   void loadImmediate(MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI,
                      unsigned *Reg, int64_t Value) const;
 
+  bool
+  reverseBranchCondition(SmallVectorImpl<MachineOperand> &Cond) const override;
+
+  bool analyzeBranch(MachineBasicBlock &MBB, MachineBasicBlock *&TBB,
+                     MachineBasicBlock *&FBB,
+                     SmallVectorImpl<MachineOperand> &Cond,
+                     bool AllowModify) const override;
+
+  unsigned removeBranch(MachineBasicBlock &MBB,
+                        int *BytesRemoved = nullptr) const override;
+
+  unsigned insertBranch(MachineBasicBlock &MBB, MachineBasicBlock *TBB,
+                        MachineBasicBlock *FBB, ArrayRef<MachineOperand> Cond,
+                        const DebugLoc &DL,
+                        int *BytesAdded = nullptr) const override;
+
+  unsigned InsertBranchAtInst(MachineBasicBlock &MBB,
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andreisfr wrote:

Corrected

https://github.com/llvm/llvm-project/pull/110959