[llvm] [NVPTX] Add float to tf32 conversion intrinsic (PR #121507)

[Alex MacLean via llvm-commits]

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@@ -728,7 +728,53 @@ bool NVPTXDAGToDAGISel::tryIntrinsicNoChain(SDNode *N) {
   case Intrinsic::nvvm_texsurf_handle_internal:
     SelectTexSurfHandle(N);
     return true;
+  case Intrinsic::nvvm_cvt_float_to_tf32:
+    SelectCvtFloatToTF32(N);
+    return true;
+  }
+}
+
+void NVPTXDAGToDAGISel::SelectCvtFloatToTF32(SDNode *N) {
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AlexMaclean wrote:

Can this be expressed via table gen patterns?

https://github.com/llvm/llvm-project/pull/121507