[NFC] Make unwind table internal data structures more accessible

[amsen20]

All these changes are being used in PR#145633

CFIProgram:

• addInstruction methods already exists, but more convenient ones are private, this PR makes them public

UnwindLocation:

• Added a field accessor method for Dereference like other field access methods.

[llvmbot]

@llvm/pr-subscribers-debuginfo

Author: AmirHossein PashaeeHir (amsen20)

Changes

All these changes are being used in PR#145633

CFIProgram:

• addInstruction methods already exists, but more convenient ones are private, this PR makes them public

UnwindLocation:

• Added a field accessor method for Dereference like other field access methods.

---

Full diff: https://github.com/llvm/llvm-project/pull/145804.diff

2 Files Affected:

• (modified) llvm/include/llvm/DebugInfo/DWARF/DWARFCFIProgram.h (+6-6)
• (modified) llvm/include/llvm/DebugInfo/DWARF/DWARFDebugFrame.h (+2)

diff --git a/llvm/include/llvm/DebugInfo/DWARF/DWARFCFIProgram.h b/llvm/include/llvm/DebugInfo/DWARF/DWARFCFIProgram.h
index 1d89ac3578c10..79a2be7ef2584 100644
--- a/llvm/include/llvm/DebugInfo/DWARF/DWARFCFIProgram.h
+++ b/llvm/include/llvm/DebugInfo/DWARF/DWARFCFIProgram.h
@@ -112,12 +112,6 @@ class CFIProgram {
   /// above. This is indexed by opcode.
   LLVM_ABI static ArrayRef<OperandType[MaxOperands]> getOperandTypes();
 
-private:
-  std::vector<Instruction> Instructions;
-  const uint64_t CodeAlignmentFactor;
-  const int64_t DataAlignmentFactor;
-  Triple::ArchType Arch;
-
   /// Convenience method to add a new instruction with the given opcode.
   void addInstruction(uint8_t Opcode) {
     Instructions.push_back(Instruction(Opcode));
@@ -144,6 +138,12 @@ class CFIProgram {
     Instructions.back().Ops.push_back(Operand2);
     Instructions.back().Ops.push_back(Operand3);
   }
+
+private:
+  std::vector<Instruction> Instructions;
+  const uint64_t CodeAlignmentFactor;
+  const int64_t DataAlignmentFactor;
+  Triple::ArchType Arch;
 };
 
 } // end namespace dwarf
diff --git a/llvm/include/llvm/DebugInfo/DWARF/DWARFDebugFrame.h b/llvm/include/llvm/DebugInfo/DWARF/DWARFDebugFrame.h
index 3b367009a379d..89d12437a7d31 100644
--- a/llvm/include/llvm/DebugInfo/DWARF/DWARFDebugFrame.h
+++ b/llvm/include/llvm/DebugInfo/DWARF/DWARFDebugFrame.h
@@ -138,6 +138,8 @@ class UnwindLocation {
     return *AddrSpace;
   }
   int32_t getConstant() const { return Offset; }
+  bool getDereference() const { return Dereference; }
+
   /// Some opcodes will modify the CFA location's register only, so we need
   /// to be able to modify the CFA register when evaluating DWARF Call Frame
   /// Information opcodes.

[amsen20]

This also has a collusion with this NFC. The first one that lands, I will update the other one.

[ilovepi]

LGTM, but be sure to get approval from code owners before landing.