[AMDGPU] Make use of multiclass inheritance. NFC.

Author: jayfoad

llvm/include/llvm/IR/IntrinsicsAMDGPU.td

@@ -1026,18 +1026,14 @@ defset list<AMDGPUImageDimIntrinsic> AMDGPUImageDimAtomicIntrinsics = {
         }
   }
 
-  multiclass AMDGPUImageDimAtomic<string opmod, LLVMType rettype = llvm_anyint_ty> {
-    defm ""
-        : AMDGPUImageDimAtomicX<opmod, [AMDGPUArg<LLVMMatchType<0>, "vdata">], rettype>;
-  }
+  multiclass AMDGPUImageDimAtomic<string opmod, LLVMType rettype = llvm_anyint_ty> :
+    AMDGPUImageDimAtomicX<opmod, [AMDGPUArg<LLVMMatchType<0>, "vdata">], rettype>;
 
-  multiclass AMDGPUImageDimFloatAtomic<string opmod> {
-    defm "" : AMDGPUImageDimAtomic<opmod, llvm_anyfloat_ty>;
-  }
+  multiclass AMDGPUImageDimFloatAtomic<string opmod> :
+    AMDGPUImageDimAtomic<opmod, llvm_anyfloat_ty>;
 
-  multiclass AMDGPUImageDimAnyAtomic<string opmod> {
-    defm "" : AMDGPUImageDimAtomic<opmod, llvm_any_ty>;
-  }
+  multiclass AMDGPUImageDimAnyAtomic<string opmod> :
+    AMDGPUImageDimAtomic<opmod, llvm_any_ty>;
 
   defm int_amdgcn_image_atomic_swap : AMDGPUImageDimAnyAtomic<"ATOMIC_SWAP">;
   defm int_amdgcn_image_atomic_add : AMDGPUImageDimAtomic<"ATOMIC_ADD">;

llvm/lib/Target/AMDGPU/BUFInstructions.td

@@ -1583,9 +1583,8 @@ multiclass BufferAtomicPat<string OpPrefix, ValueType vt, string Inst, bit isInt
   defm : BufferAtomicPat_Common<OpPrefix, vt, Inst # "_VBUFFER", isIntr>;
 }
 
-multiclass BufferAtomicIntrPat<string OpPrefix, ValueType vt, string Inst> {
-  defm : BufferAtomicPat<OpPrefix, vt, Inst, /* isIntr */ 1>;
-}
+multiclass BufferAtomicIntrPat<string OpPrefix, ValueType vt, string Inst> :
+  BufferAtomicPat<OpPrefix, vt, Inst, /* isIntr */ 1>;
 
 multiclass BufferAtomicCmpSwapPat_Common<ValueType vt, ValueType data_vt, string Inst> {
   foreach RtnMode = ["ret", "noret"] in {

llvm/lib/Target/AMDGPU/VOP1Instructions.td

@@ -882,9 +882,8 @@ multiclass VOP1_Real_dpp8_with_name<GFXGen Gen, bits<9> op, string opName,
   }
 }
 
-multiclass VOP1_Realtriple_e64<GFXGen Gen, bits<9> op> {
-  defm NAME : VOP3_Realtriple<Gen, {0, 1, 1, op{6-0}}, /*isSingle=*/ 0, NAME>;
-}
+multiclass VOP1_Realtriple_e64<GFXGen Gen, bits<9> op> :
+  VOP3_Realtriple<Gen, {0, 1, 1, op{6-0}}, /*isSingle=*/ 0, NAME>;
 
 multiclass VOP1_Realtriple_e64_with_name<GFXGen Gen, bits<9> op, string opName,
   string asmName> {

llvm/lib/Target/AMDGPU/VOP2Instructions.td

@@ -1513,9 +1513,8 @@ multiclass VOP2be_Real_dpp8<GFXGen Gen, bits<6> op, string opName, string asmNam
 }
 
 // We don't want to override separate decoderNamespaces within these
-multiclass VOP2_Realtriple_e64<GFXGen Gen, bits<6> op> {
-  defm NAME : VOP3_Realtriple<Gen, {0, 1, 0, 0, op{5-0}}, /*isSingle=*/ 0, NAME> ;
-}
+multiclass VOP2_Realtriple_e64<GFXGen Gen, bits<6> op> :
+  VOP3_Realtriple<Gen, {0, 1, 0, 0, op{5-0}}, /*isSingle=*/ 0, NAME>;
 
 multiclass VOP2_Realtriple_e64_with_name<GFXGen Gen, bits<6> op, string opName,
                                                string asmName> {