[AMDGPU] simplify VOP3_Real definitions. NFC. (#89656)

Author: rampitec

llvm/lib/Target/AMDGPU/VOPInstructions.td

@@ -1388,14 +1388,15 @@ multiclass VOP3_Real_Base<GFXGen Gen, bits<10> op, string opName = NAME,
                           bit isSingle = 0> {
   defvar ps = !cast<VOP_Pseudo>(opName#"_e64");
   let IsSingle = !or(isSingle, ps.Pfl.IsSingle) in {
-  if ps.Pfl.HasOpSel then
-    def _e64#Gen.Suffix :
-      VOP3_Real_Gen<ps, Gen>,
-      VOP3OpSel_gfx11_gfx12<op, ps.Pfl>;
-  if !not(ps.Pfl.HasOpSel) then
-    def _e64#Gen.Suffix :
-      VOP3_Real_Gen<ps, Gen>,
-      VOP3e_gfx11_gfx12<op, ps.Pfl>;
+    if ps.Pfl.HasOpSel then {
+      def _e64#Gen.Suffix :
+        VOP3_Real_Gen<ps, Gen>,
+        VOP3OpSel_gfx11_gfx12<op, ps.Pfl>;
+    } else {
+      def _e64#Gen.Suffix :
+        VOP3_Real_Gen<ps, Gen>,
+        VOP3e_gfx11_gfx12<op, ps.Pfl>;
+    }
   }
 }
 
@@ -1418,15 +1419,14 @@ multiclass VOP3_Real_with_name<GFXGen Gen, bits<10> op, string opName,
       def _e64#Gen.Suffix :
         VOP3_Real_Gen<ps, Gen>,
         VOP3FP8OpSel_gfx11_gfx12<op, ps.Pfl>;
+    } else if ps.Pfl.HasOpSel then {
+      def _e64#Gen.Suffix :
+        VOP3_Real_Gen<ps, Gen>,
+        VOP3OpSel_gfx11_gfx12<op, ps.Pfl>;
     } else {
-      if ps.Pfl.HasOpSel then
-        def _e64#Gen.Suffix :
-          VOP3_Real_Gen<ps, Gen>,
-          VOP3OpSel_gfx11_gfx12<op, ps.Pfl>;
-      if !not(ps.Pfl.HasOpSel) then
-        def _e64#Gen.Suffix :
-          VOP3_Real_Gen<ps, Gen>,
-          VOP3e_gfx11_gfx12<op, ps.Pfl>;
+      def _e64#Gen.Suffix :
+        VOP3_Real_Gen<ps, Gen>,
+        VOP3e_gfx11_gfx12<op, ps.Pfl>;
     }
   }
   def Gen.Suffix#"_VOP3_alias" : MnemonicAlias<ps.Mnemonic, asmName>, Requires<[Gen.AssemblerPredicate]>, LetDummies;