[lldb] [llvm] Annotate disassembly with register‐resident variable locations (PR #147460)

[Adrian Prantl via llvm-commits]

================
@@ -702,6 +705,78 @@ void Instruction::Dump(lldb_private::Stream *s, uint32_t max_opcode_byte_size,
   ss.FillLastLineToColumn(opcode_pos + opcode_column_width, ' ');
   ss.PutCString(mnemonics);
 
+  const size_t annotation_column = 150;
+
+  if (exe_ctx && exe_ctx->GetFramePtr()) {
+    StackFrame *frame = exe_ctx->GetFramePtr();
+    TargetSP target_sp = exe_ctx->GetTargetSP();
+    if (frame && target_sp) {
+      addr_t current_pc = m_address.GetLoadAddress(target_sp.get());
+      addr_t original_pc = frame->GetFrameCodeAddress().GetLoadAddress(target_sp.get());
+      if (frame->ChangePC(current_pc)) {
+        VariableListSP var_list_sp = frame->GetInScopeVariableList(true);
+        SymbolContext sc = frame->GetSymbolContext(eSymbolContextFunction);
+        addr_t func_load_addr = LLDB_INVALID_ADDRESS;
+        if (sc.function)
+          func_load_addr = sc.function->GetAddress().GetLoadAddress(target_sp.get());
+
+        
+        if(ss.GetSizeOfLastLine() < annotation_column) {
----------------
adrian-prantl wrote:

Does this check if there is enough space for an annotation? Maybe comment that?

https://github.com/llvm/llvm-project/pull/147460