[clang] [llvm] [HLSL][RootSignature] Implement validation of resource ranges for `RootDescriptors` (PR #140962)

[Justin Bogner via llvm-commits]

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@@ -71,13 +71,17 @@ class MetadataBuilder {
   SmallVector<Metadata *> GeneratedMetadata;
 };
 
-// RangeInfo holds the information to correctly construct a ResourceRange
-// and retains this information to be used for displaying a better diagnostic
 struct RangeInfo {
-  const static uint32_t Unbounded = ~0u;
+  const static uint32_t Unbounded = static_cast<uint32_t>(-1);
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bogner wrote:

Why change this? I certainly find `~0U` clearer, but if you want to avoid that for some reason it's better to use `std::numeric_limits<uint32_t>::max()` rather than casting negative one.

https://github.com/llvm/llvm-project/pull/140962