[mlir] Add result name for gpu.block_id and gpu.thread_id ops.

Author: pifon2a

mlir/include/mlir/Dialect/GPU/IR/GPUOps.td

@@ -24,6 +24,7 @@ include "mlir/IR/EnumAttr.td"
 include "mlir/IR/SymbolInterfaces.td"
 include "mlir/Interfaces/ControlFlowInterfaces.td"
 include "mlir/Interfaces/DataLayoutInterfaces.td"
+include "mlir/IR/OpAsmInterface.td"
 include "mlir/Interfaces/FunctionInterfaces.td"
 include "mlir/Interfaces/InferIntRangeInterface.td"
 include "mlir/Interfaces/InferTypeOpInterface.td"
@@ -50,9 +51,21 @@ def GPU_DimensionAttr : EnumAttr<GPU_Dialect, GPU_Dimension, "dim">;
 
 class GPU_IndexOp<string mnemonic, list<Trait> traits = []> :
     GPU_Op<mnemonic, !listconcat(traits, [
-        Pure, DeclareOpInterfaceMethods<InferIntRangeInterface>])>,
+        Pure,
+        DeclareOpInterfaceMethods<InferIntRangeInterface>,
+        DeclareOpInterfaceMethods<OpAsmOpInterface, ["getAsmResultNames"]>])>,
     Arguments<(ins GPU_DimensionAttr:$dimension)>, Results<(outs Index)> {
   let assemblyFormat = "$dimension attr-dict";
+  let extraClassDefinition = [{
+    void $cppClass::getAsmResultNames(
+        llvm::function_ref<void(mlir::Value, mlir::StringRef)> setNameFn) {
+      auto dimStr = stringifyDimension(getDimensionAttr().getValue());
+      auto opName = getOperationName();
+      assert(opName.consume_front("gpu."));
+      SmallString<8> resultName({opName, "_", dimStr});
+      setNameFn(getResult(),resultName);
+    }
+  }];
 }
 
 def GPU_ClusterDimOp : GPU_IndexOp<"cluster_dim"> {

mlir/test/Dialect/GPU/ops.mlir

@@ -59,24 +59,39 @@ module attributes {gpu.container_module} {
   gpu.module @kernels {
     gpu.func @kernel_1(%arg0 : f32, %arg1 : memref<?xf32, 1>) kernel {
       %tIdX = gpu.thread_id x
+      // CHECK:      thread_id_x
       %tIdY = gpu.thread_id y
+      // CHECK-NEXT: thread_id_y
       %tIdZ = gpu.thread_id z
+      // CHECK-NEXT: thread_id_z
 
       %bDimX = gpu.block_dim x
+      // CHECK-NEXT: block_dim_x
       %bDimY = gpu.block_dim y
+      // CHECK-NEXT: block_dim_y
       %bDimZ = gpu.block_dim z
+      // CHECK-NEXT: block_dim_z
 
       %bIdX = gpu.block_id x
+      // CHECK-NEXT: block_id_x
       %bIdY = gpu.block_id y
+      // CHECK-NEXT: block_id_y
       %bIdZ = gpu.block_id z
+      // CHECK-NEXT: block_id_z
 
       %gDimX = gpu.grid_dim x
+      // CHECK-NEXT: grid_dim_x
       %gDimY = gpu.grid_dim y
+      // CHECK-NEXT: grid_dim_y
       %gDimZ = gpu.grid_dim z
+      // CHECK-NEXT: grid_dim_z
 
       %gIdX = gpu.global_id x
+      // CHECK-NEXT: global_id_x
       %gIdY = gpu.global_id y
+      // CHECK-NEXT: global_id_y
       %gIdZ = gpu.global_id z
+      // CHECK-NEXT: global_id_z
 
       %sgId = gpu.subgroup_id : index
       %numSg = gpu.num_subgroups : index