[clang] [llvm] [clang][NVPTX] Add intrinsics and builtins for CVT RS rounding mode (PR #160494)

[Durgadoss R via cfe-commits]

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@@ -2839,6 +2845,69 @@ static SDValue LowerClusterLaunchControlQueryCancel(SDValue Op,
                      {TryCancelResponse0, TryCancelResponse1});
 }
 
+bool isCvtRSReluIntrinsic(Intrinsic::ID ID) {
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durga4github wrote:

static?

or even better, move this into the below function as a lambda

https://github.com/llvm/llvm-project/pull/160494