[llvm-branch-commits] [clang] [llvm] [HLSL][RootSignature] Add parsing of floats for StaticSampler (PR #140181)

[Finn Plummer via llvm-branch-commits]

================
@@ -663,6 +669,23 @@ RootSignatureParser::parseStaticSamplerParams() {
         return std::nullopt;
       Params.Reg = Reg;
     }
+
+    // `mipLODBias` `=` NUMBER
+    if (tryConsumeExpectedToken(TokenKind::kw_mipLODBias)) {
+      if (Params.MipLODBias.has_value()) {
+        getDiags().Report(CurToken.TokLoc, diag::err_hlsl_rootsig_repeat_param)
+            << CurToken.TokKind;
+        return std::nullopt;
+      }
+
+      if (consumeExpectedToken(TokenKind::pu_equal))
+        return std::nullopt;
+
+      auto MipLODBias = parseFloatParam();
+      if (!MipLODBias.has_value())
+        return std::nullopt;
+      Params.MipLODBias = (float)*MipLODBias;
----------------
inbelic wrote:

```suggestion
      Params.MipLODBias = MipLODBias;
```
can remove lingering cast from previous version

https://github.com/llvm/llvm-project/pull/140181