[llvm] [NVPTX] Add intrinsics for ff/f16/bf16 to ue5m3 conversions (PR #218677)

[Dharuni R Acharya via llvm-commits]

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@@ -2602,6 +2602,41 @@ let Predicates = [hasUE5M3TypeSupport] in {
             (CVT_bf16x2_ue5m3x2_scale_n2 $a, $b, CvtRN)>;
   def : Pat<(int_nvvm_ue5m3x2_to_bf16x2_rn_satfinite_scale_n2_ue8m0 i16:$a, i16:$b),
             (CVT_bf16x2_ue5m3x2_scale_n2 $a, $b, CvtRN_SATFINITE)>;
+
+  foreach rnd = ["rn", "rz", "rp"] in {
+    foreach satfinite = ["", "_satfinite"] in {
+      defvar intrin = !cast<Intrinsic>("int_nvvm_ff_to_ue5m3x2_" # rnd # satfinite);
+      defvar mode = !cast<PatLeaf>("Cvt" # !toupper(rnd) # !toupper(satfinite));
+      def : Pat<(intrin f32:$a, f32:$b), (CVT_ue5m3x2_f32 $a, $b, mode)>;
+    }
+  }
+  foreach rnd = ["rn", "rz"] in {
+    foreach satfinite = ["", "_satfinite"] in {
+      defvar intrin = !cast<Intrinsic>("int_nvvm_ff_to_ue5m3x2_" # rnd # satfinite # "_scale_n1_ue8m0");
+      defvar mode = !cast<PatLeaf>("Cvt" # !toupper(rnd) # !toupper(satfinite));
+      def : Pat<(intrin f32:$a, f32:$b, i16:$c),
+                (CVT_ue5m3x2_f32_scale_n1 $a, $b, $c, mode)>;
+    }
+  }
+
+  foreach type = ["f16x2", "bf16x2"] in {
+    foreach rnd = ["rn", "rz", "rp"] in {
+      foreach satfinite = ["", "_satfinite"] in {
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DharuniRAcharya wrote:

Yes, the latest revision now follows a convention of not having `_` for all looped variables. 

https://github.com/llvm/llvm-project/pull/218677