[llvm] [DirectX] Set function-level flag Int64Ops in DXIL Shader Flags Analysis (PR #129089)

[Deric Cheung via llvm-commits]

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@@ -99,6 +99,20 @@ void ModuleShaderFlags::updateFunctionFlags(ComputedShaderFlags &CSF,
     }
   }
 
+  if (!CSF.Int64Ops)
+    CSF.Int64Ops =
+        I.getType()->isIntegerTy() && I.getType()->getScalarSizeInBits() == 64;
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Icohedron wrote:

Yes. I didn't realize that was a valid overload.

https://github.com/llvm/llvm-project/pull/129089