[turbofan] Strength reduction for inline comparisons.

test/unittests/compiler/opcodes-unittest.cc

 // Copyright 2015 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 "src/compiler/opcodes.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace v8 {
 namespace internal {
 namespace compiler {
@@ skipping 46 matching lines @@
   case IrOpcode::k##Opcode: \
     return true;
     CONSTANT_OP_LIST(OPCODE)
 #undef OPCODE
     default:
       return false;
   }
 }
 
 
+bool IsComparisonOpcode(IrOpcode::Value opcode) {
+  switch (opcode) {
+#define OPCODE(Opcode)      \
+  case IrOpcode::k##Opcode: \
+    return true;
+    JS_COMPARE_BINOP_LIST(OPCODE)
+    SIMPLIFIED_COMPARE_BINOP_LIST(OPCODE)
+    MACHINE_COMPARE_BINOP_LIST(OPCODE)
+#undef OPCODE
+    default:
+      return false;
+  }
+}
+
+
 const IrOpcode::Value kInvalidOpcode = static_cast<IrOpcode::Value>(123456789);
 
 }  // namespace
 
 
 TEST(IrOpcodeTest, IsCommonOpcode) {
   EXPECT_FALSE(IrOpcode::IsCommonOpcode(kInvalidOpcode));
 #define OPCODE(Opcode)                           \
   EXPECT_EQ(IsCommonOpcode(IrOpcode::k##Opcode), \
             IrOpcode::IsCommonOpcode(IrOpcode::k##Opcode));
@@ skipping 25 matching lines @@
 TEST(IrOpcodeTest, IsConstantOpcode) {
   EXPECT_FALSE(IrOpcode::IsConstantOpcode(kInvalidOpcode));
 #define OPCODE(Opcode)                             \
   EXPECT_EQ(IsConstantOpcode(IrOpcode::k##Opcode), \
             IrOpcode::IsConstantOpcode(IrOpcode::k##Opcode));
   ALL_OP_LIST(OPCODE)
 #undef OPCODE
 }
 
 
+TEST(IrOpcodeTest, IsComparisonOpcode) {
+  EXPECT_FALSE(IrOpcode::IsComparisonOpcode(kInvalidOpcode));
+#define OPCODE(Opcode)                               \
+  EXPECT_EQ(IsComparisonOpcode(IrOpcode::k##Opcode), \
+            IrOpcode::IsComparisonOpcode(IrOpcode::k##Opcode));
+  ALL_OP_LIST(OPCODE)
+#undef OPCODE
+}
+
+
 TEST(IrOpcodeTest, Mnemonic) {
   EXPECT_STREQ("UnknownOpcode", IrOpcode::Mnemonic(kInvalidOpcode));
 #define OPCODE(Opcode) \
   EXPECT_STREQ(#Opcode, IrOpcode::Mnemonic(IrOpcode::k##Opcode));
   ALL_OP_LIST(OPCODE)
 #undef OPCODE
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8