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

[Alex MacLean via llvm-commits]

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@@ -1466,6 +1466,15 @@ let TargetPrefix = "nvvm" in {
   def int_nvvm_e5m2x2_to_f16x2_rn_relu : ClangBuiltin<"__nvvm_e5m2x2_to_f16x2_rn_relu">,
       Intrinsic<[llvm_v2f16_ty], [llvm_i16_ty], [IntrNoMem, IntrNoCallback]>;
 
+// Convert Float to TF32
+def int_nvvm_cvt_float_to_tf32 : Intrinsic<[llvm_i32_ty],
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AlexMaclean wrote:

Perhaps a name like `llvm.nvvm.convert.to.tf32` would be clearer as it is more consistent with the existing [‘llvm.convert.to.fp16’](https://llvm.org/docs/LangRef.html#id2360) intrinsic. 

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