[llvm] [AArch64][DebugInfo]Add Target hooks for InstrRef on AArch64 (PR #165953)

[David Green via llvm-commits]

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@@ -2429,14 +2433,56 @@ Register AArch64InstrInfo::isStoreToStackSlot(const MachineInstr &MI,
   case AArch64::STRDui:
   case AArch64::STRQui:
   case AArch64::STR_PXI:
-    if (MI.getOperand(0).getSubReg() == 0 && MI.getOperand(1).isFI() &&
-        MI.getOperand(2).isImm() && MI.getOperand(2).getImm() == 0) {
-      FrameIndex = MI.getOperand(1).getIndex();
-      return MI.getOperand(0).getReg();
-    }
-    break;
+    return true;
   }
-  return 0;
+}
+
+Register AArch64InstrInfo::isStoreToStackSlot(const MachineInstr &MI,
+                                              int &FrameIndex) const {
+  if (!isFrameStoreOpcode(MI.getOpcode()))
+    return Register();
+
+  if (MI.getOperand(0).getSubReg() == 0 && MI.getOperand(1).isFI() &&
+      MI.getOperand(2).isImm() && MI.getOperand(2).getImm() == 0) {
+    FrameIndex = MI.getOperand(1).getIndex();
+    return MI.getOperand(0).getReg();
+  }
+  return Register();
+}
+
+Register AArch64InstrInfo::isStoreToStackSlotPostFE(const MachineInstr &MI,
+                                                    int &FrameIndex) const {
+  if (!isFrameStoreOpcode(MI.getOpcode()))
+    return Register();
+
+  SmallVector<const MachineMemOperand *, 1> Accesses;
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davemgreen wrote:

Move Accesses below isStoreToStackSlot? So that it is closer to the first use.

https://github.com/llvm/llvm-project/pull/165953