[Lldb-commits] [lldb] [LLDB] Add more helper functions to ValueObject class. (PR #87197)

Greg Clayton via lldb-commits lldb-commits at lists.llvm.org
Mon Apr 1 12:59:47 PDT 2024


================
@@ -1089,6 +1089,116 @@ int64_t ValueObject::GetValueAsSigned(int64_t fail_value, bool *success) {
   return fail_value;
 }
 
+llvm::APSInt ValueObject::GetValueAsAPSInt() {
+  lldb::TargetSP target = GetTargetSP();
+  uint64_t byte_size = 0;
+  if (auto temp = GetCompilerType().GetByteSize(target.get()))
+    byte_size = temp.value();
+
+  unsigned bit_width = static_cast<unsigned>(byte_size * CHAR_BIT);
+  bool success = true;
+  uint64_t fail_value = 0;
+  uint64_t ret_val = GetValueAsUnsigned(fail_value, &success);
+  uint64_t new_value = fail_value;
+  if (success)
+    new_value = ret_val;
+  bool is_signed = GetCompilerType().IsSigned();
----------------
clayborg wrote:

Extract the `APInt` from the contained `Scalar` value directly. No need to create a location uint64_t and then try to re-create, the `Scalar` ivar already contains an `APInt`. So just do:
```
  if (CanProvideValue()) {
    Scalar scalar;
    if (ResolveValue(scalar)) {
      if (success)
        *success = true;
      scalar.MakeUnsigned();
      return scalar.m_integer; // Might need to provide an accessor for Scalar::m_integer
    }
  }
```

https://github.com/llvm/llvm-project/pull/87197


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