AMDGPU: Use True16Predicate for UseRealTrue16Insts in VOP2 Reals (#84394)

We can not use OtherPredicates or SubtargetPredicate because they
should be copied from pseudo to real, and we should not override them.

Author: changpeng

llvm/lib/Target/AMDGPU/VOP2Instructions.td

@@ -112,7 +112,7 @@ class VOP2_Real <VOP2_Pseudo ps, int EncodingFamily, string real_name = ps.Mnemo
 class VOP2_Real_Gen <VOP2_Pseudo ps, GFXGen Gen, string real_name = ps.Mnemonic> :
   VOP2_Real <ps, Gen.Subtarget, real_name> {
   let AssemblerPredicate = Gen.AssemblerPredicate;
-  let OtherPredicates = !if(ps.Pfl.IsRealTrue16, [UseRealTrue16Insts], []);
+  let True16Predicate = !if(ps.Pfl.IsRealTrue16, UseRealTrue16Insts, NoTrue16Predicate);
   let DecoderNamespace = Gen.DecoderNamespace#
                          !if(ps.Pfl.IsRealTrue16, "", "_FAKE16");
 }
@@ -1272,7 +1272,7 @@ class VOP2_DPP16_Gen<bits<6> op, VOP2_DPP_Pseudo ps, GFXGen Gen,
                  string opName = ps.OpName, VOPProfile p = ps.Pfl> :
     VOP2_DPP16<op, ps, Gen.Subtarget, opName, p> {
   let AssemblerPredicate = Gen.AssemblerPredicate;
-  let OtherPredicates = !if(ps.Pfl.IsRealTrue16, [UseRealTrue16Insts], []);
+  let True16Predicate = !if(ps.Pfl.IsRealTrue16, UseRealTrue16Insts, NoTrue16Predicate);
   let DecoderNamespace = Gen.DecoderNamespace#
                          !if(ps.Pfl.IsRealTrue16, "", "_FAKE16");
 }
@@ -1301,7 +1301,7 @@ class VOP2_DPP8_Gen<bits<6> op, VOP2_Pseudo ps, GFXGen Gen,
                     VOPProfile p = ps.Pfl> :
     VOP2_DPP8<op, ps, p> {
   let AssemblerPredicate = Gen.AssemblerPredicate;
-  let OtherPredicates = !if(ps.Pfl.IsRealTrue16, [UseRealTrue16Insts], []);
+  let True16Predicate = !if(ps.Pfl.IsRealTrue16, UseRealTrue16Insts, NoTrue16Predicate);
   let DecoderNamespace = Gen.DecoderNamespace#
                          !if(ps.Pfl.IsRealTrue16, "", "_FAKE16");
 }