[Lldb-commits] [lldb] [lldb][TypeSystemClang] Add support for floating point template argument constants (PR #127206)

[Pavel Labath via lldb-commits]

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@@ -1973,6 +1973,30 @@ class DWARFASTParserClang::DelayedAddObjCClassProperty {
   ClangASTMetadata m_metadata;
 };
 
+static std::optional<clang::APValue> MakeAPValue(const clang::ASTContext &ast,
+                                                 CompilerType clang_type,
+                                                 uint64_t bit_width,
+                                                 uint64_t value) {
+  bool is_signed = false;
+  const bool is_integral = clang_type.IsIntegerOrEnumerationType(is_signed);
+
+  llvm::APSInt apint(bit_width, !is_signed);
+  apint = value;
+
+  if (is_integral)
+    return clang::APValue(apint);
+
+  uint32_t count;
+  bool is_complex;
+  // FIXME: we currently support a limited set of floating point types.
+  // E.g., 16-bit floats are not supported.
+  if (!clang_type.IsFloatingPointType(count, is_complex))
+    return std::nullopt;
+
+  return clang::APValue(llvm::APFloat(
+      ast.getFloatTypeSemantics(ClangUtil::GetQualType(clang_type)), apint));
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labath wrote:

:+1: 

https://github.com/llvm/llvm-project/pull/127206