ARM64: unit tests for instruction selection.

test/cctest/compiler/test-instruction-selector-arm64.cc

+// Copyright 2014 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include <list>
+
+#include "test/cctest/compiler/instruction-selector-tester.h"
+
+using namespace v8::internal;
+using namespace v8::internal::compiler;
+
+namespace {
+
+struct DPI {
+  Operator* op;
+  ArchOpcode arch_opcode;
+};
+
+
+// ARM64 Logical instructions.
+class LogicalInstructions V8_FINAL : public std::list<DPI>,
+                                     private HandleAndZoneScope {
+ public:
+  LogicalInstructions() {
+    MachineOperatorBuilder machine(main_zone());
+    DPI and32 = {machine.Word32And(), kArm64And32};
+    push_back(and32);
+    DPI and64 = {machine.Word64And(), kArm64And};
+    push_back(and64);
+    DPI or32 = {machine.Word32Or(), kArm64Or32};
+    push_back(or32);
+    DPI or64 = {machine.Word64Or(), kArm64Or};
+    push_back(or64);
+    DPI xor32 = {machine.Word32Xor(), kArm64Xor32};
+    push_back(xor32);
+    DPI xor64 = {machine.Word64Xor(), kArm64Xor};
+    push_back(xor64);
+  }
+};
+
+
+// ARM64 Arithmetic instructions.
+class AddSubInstructions V8_FINAL : public std::list<DPI>,
+                                    private HandleAndZoneScope {
+ public:
+  AddSubInstructions() {
+    MachineOperatorBuilder machine(main_zone());
+    DPI add32 = {machine.Int32Add(), kArm64Add32};
+    push_back(add32);
+    DPI add64 = {machine.Int64Add(), kArm64Add};
+    push_back(add64);
+    DPI sub32 = {machine.Int32Sub(), kArm64Sub32};
+    push_back(sub32);
+    DPI sub64 = {machine.Int64Sub(), kArm64Sub};
+    push_back(sub64);
+  }
+};
+
+
+// ARM64 Add/Sub immediates.
+class AddSubImmediates V8_FINAL : public std::list<int32_t> {
+ public:
+  AddSubImmediates() {
+    for (int32_t imm12 = 0; imm12 < 4096; ++imm12) {
+      CHECK(Assembler::IsImmAddSub(imm12));
+      CHECK(Assembler::IsImmAddSub(imm12 << 12));
+      push_back(imm12);
+      push_back(imm12 << 12);
+    }
+  }
+};
+
+
+// ARM64 Arithmetic instructions.
+class MulDivInstructions V8_FINAL : public std::list<DPI>,
+                                    private HandleAndZoneScope {
+ public:
+  MulDivInstructions() {
+    MachineOperatorBuilder machine(main_zone());
+    DPI mul32 = {machine.Int32Mul(), kArm64Mul32};
+    push_back(mul32);
+    DPI mul64 = {machine.Int64Mul(), kArm64Mul};
+    push_back(mul64);
+    DPI sdiv32 = {machine.Int32Div(), kArm64Idiv32};
+    push_back(sdiv32);
+    DPI sdiv64 = {machine.Int64Div(), kArm64Idiv};
+    push_back(sdiv64);
+    DPI udiv32 = {machine.Int32UDiv(), kArm64Udiv32};
+    push_back(udiv32);
+    DPI udiv64 = {machine.Int64UDiv(), kArm64Udiv};
+    push_back(udiv64);
+  }
+};
+
+}  // namespace
+
+
+TEST(InstructionSelectorLogicalP) {
+  LogicalInstructions instructions;
+  for (LogicalInstructions::const_iterator i = instructions.begin();
+       i != instructions.end(); ++i) {
+    DPI dpi = *i;
+    InstructionSelectorTester m;
+    m.Return(m.NewNode(dpi.op, m.Parameter(0), m.Parameter(1)));
+    m.SelectInstructions();
+    CHECK_EQ(1, m.code.size());
+    CHECK_EQ(dpi.arch_opcode, m.code[0]->arch_opcode());
+  }
+}
+
+
+TEST(InstructionSelectorAddSubP) {
+  AddSubInstructions instructions;
+  for (AddSubInstructions::const_iterator i = instructions.begin();
+       i != instructions.end(); ++i) {
+    DPI dpi = *i;
+    InstructionSelectorTester m;
+    m.Return(m.NewNode(dpi.op, m.Parameter(0), m.Parameter(1)));
+    m.SelectInstructions();
+    CHECK_EQ(1, m.code.size());
+    CHECK_EQ(dpi.arch_opcode, m.code[0]->arch_opcode());
+  }
+}
+
+
+TEST(InstructionSelectorAddSubImm) {
+  AddSubInstructions instructions;
+  AddSubImmediates immediates;
+  for (AddSubInstructions::const_iterator i = instructions.begin();
+       i != instructions.end(); ++i) {
+    DPI dpi = *i;
+    for (AddSubImmediates::const_iterator j = immediates.begin();
+         j != immediates.end(); ++j) {
+      int32_t imm = *j;
+      InstructionSelectorTester m;
+      m.Return(m.NewNode(dpi.op, m.Parameter(0), m.Int32Constant(imm)));
+      m.SelectInstructions();
+      CHECK_EQ(1, m.code.size());
+      CHECK_EQ(dpi.arch_opcode, m.code[0]->arch_opcode());
+      CHECK(m.code[0]->InputAt(1)->IsImmediate());
+    }
+  }
+}
+
+
+TEST(InstructionSelectorMulDivP) {
+  MulDivInstructions instructions;
+  for (MulDivInstructions::const_iterator i = instructions.begin();
+       i != instructions.end(); ++i) {
+    DPI dpi = *i;
+    InstructionSelectorTester m;
+    m.Return(m.NewNode(dpi.op, m.Parameter(0), m.Parameter(1)));
+    m.SelectInstructions();
+    CHECK_EQ(1, m.code.size());
+    CHECK_EQ(dpi.arch_opcode, m.code[0]->arch_opcode());
+  }
+}