[llvm] [PATCH] [Xtensa] Implement FrameLowering methods and stack operation lowering. (PR #92960)

[Andrei Safronov via llvm-commits]

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@@ -534,13 +540,56 @@ SDValue XtensaTargetLowering::LowerConstantPool(ConstantPoolSDNode *CP,
   return getAddrPCRel(Result, DAG);
 }
 
+SDValue XtensaTargetLowering::LowerSTACKSAVE(SDValue Op,
+                                             SelectionDAG &DAG) const {
+  unsigned SP = Xtensa::SP;
+  return DAG.getCopyFromReg(Op.getOperand(0), SDLoc(Op), SP, Op.getValueType());
+}
+
+SDValue XtensaTargetLowering::LowerSTACKRESTORE(SDValue Op,
+                                                SelectionDAG &DAG) const {
+  unsigned SP = Xtensa::SP;
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andreisfr wrote:

fixed

https://github.com/llvm/llvm-project/pull/92960