[clang] Avoid printing overly large integer. (PR #75902)

[Yueh-Shun Li via cfe-commits]

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In-Reply-To: <llvm.org/llvm/llvm-project/pull/75902 at github.com>


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@@ -17132,6 +17132,10 @@ static bool ConvertAPValueToString(const APValue &V, QualType T,
         case BuiltinType::WChar_U: {
           unsigned TyWidth = Context.getIntWidth(T);
           assert(8 <= TyWidth && TyWidth <= 32 && "Unexpected integer width");
+          if (V.getInt() > std::numeric_limits<uint64_t>::max() ||
----------------
ShamrockLee wrote:

Besides, as @tbaederr and @shafik suggest, printing the hexadecimal representation of the integer is better than avoid printing it. This would be something like.

```c
      if (V.getInt() > std::numeric_limits<uint64_t>::max() ||
          V.getInt() < std::numeric_limits<int64_t>::min()) {
        // Code to print the hexadecimal expression
      } else {
        V.getInt().toString(Str);
      }
```

https://github.com/llvm/llvm-project/pull/75902