Add HW mode test

Author: s-barannikov

llvm/test/TableGen/SDNodeInfoEmitter/hw-mode.td

@@ -0,0 +1,61 @@
+// RUN: llvm-tblgen -gen-sd-node-info -I %p/../../../include %s | FileCheck %s
+
+include "llvm/Target/Target.td"
+
+def MyTarget : Target;
+
+def M1 : HwMode<"", []>;
+def M2 : HwMode<"", []>;
+def M3 : HwMode<"", []>;
+
+def VT1 : ValueTypeByHwMode<[M1], [i1]>;
+def VT2 : ValueTypeByHwMode<[M2], [i2]>;
+def VT3 : ValueTypeByHwMode<[M1, M2, M3, DefaultMode], [i1, i2, i4, i8]>;
+
+def my_node_1 : SDNode<
+    "MyTargetISD::NODE_1",
+    SDTypeProfile<0, 5, [
+        SDTCVecEltisVT<0, VT3>,
+        SDTCisVT<1, i1>,
+        SDTCVecEltisVT<2, i2>,
+        SDTCisVT<3, VT1>,
+        SDTCVecEltisVT<4, VT2>,
+    ]>
+>;
+
+def my_node_2 : SDNode<
+    "MyTargetISD::NODE_2",
+    SDTypeProfile<1, 2, [
+        SDTCVecEltisVT<0, VT3>,
+        SDTCisVT<1, i1>,
+        SDTCVecEltisVT<2, i2>,
+    ]>
+>;
+
+def my_node_3 : SDNode<
+    "MyTargetISD::NODE_3",
+    SDTypeProfile<1, 0, [
+        SDTCisVT<0, VT3>,
+    ]>
+>;
+
+// CHECK:       static const VTByHwModePair MyTargetVTByHwModeTable[] = {
+// CHECK-NEXT:    /* 0 */ {0, MVT::i8}, {1, MVT::i1}, {2, MVT::i2}, {3, MVT::i4},
+// CHECK-NEXT:    /* 4 */ {1, MVT::i1},
+// CHECK-NEXT:    /* 5 */ {2, MVT::i2},
+// CHECK-NEXT:  };
+// CHECK-EMPTY:
+// CHECK-NEXT:  static const SDTypeConstraint MyTargetSDTypeConstraints[] = {
+// CHECK-NEXT:    /* 0 */ {SDTCisVT, 0, 0, 4, 0},
+// CHECK-NEXT:    /* 1 */ {SDTCVecEltisVT, 4, 0, 1, 5},
+// CHECK-SAME:            {SDTCisVT, 3, 0, 1, 4},
+// CHECK-SAME:            {SDTCVecEltisVT, 2, 0, 0, MVT::i2},
+// CHECK-SAME:            {SDTCisVT, 1, 0, 0, MVT::i1},
+// CHECK-SAME:            {SDTCVecEltisVT, 0, 0, 4, 0},
+// CHECK-NEXT:  };
+// CHECK-EMPTY:
+// CHECK-NEXT:  static const SDNodeDesc MyTargetSDNodeDescs[] = {
+// CHECK-NEXT:      {0, 5, 0, 0, 0, 1, 1, 5}, // NODE_1
+// CHECK-NEXT:      {1, 2, 0, 0, 0, 21, 3, 3}, // NODE_2
+// CHECK-NEXT:      {1, 0, 0, 0, 0, 41, 0, 1}, // NODE_3
+// CHECK-NEXT:  };