[llvm] [NVPTX] Add support for f32x2 mixed-precision add/sub (PR #221957)

[Srinivasa Ravi via llvm-commits]

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@@ -2592,6 +2658,26 @@ foreach rnd = FPRoundingModes in {
              (f32 (fpextend type:$a)),
              (f32 (fneg f32:$b)), rnd_imm))]>,
         Requires<[SM100]>;
+
+  foreach t = [F16X2RT, BF16X2RT] in {
+    // combineFAddWithNeg has already folded the fneg into a sub node.
+    defvar SubOp = !cast<SDNode>("sub_" # rnd);
+
+    def INT_NVVM_MIXED_SUB_ # rnd # _f32x2_ # t.PtxType :
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Wolfram70 wrote:

Fixed, thanks!

https://github.com/llvm/llvm-project/pull/221957