[turbofan] Strength reduction for inline comparisons.

test/unittests/compiler/opcodes-unittest.cc

Index: test/unittests/compiler/opcodes-unittest.cc
diff --git a/test/unittests/compiler/opcodes-unittest.cc b/test/unittests/compiler/opcodes-unittest.cc
index ca79e8ac8b6e33099d5d18e5f386ecc5ecb72db3..3bb65c2e13b025f9fc8ba455ba98ff143624cf73 100644
--- a/test/unittests/compiler/opcodes-unittest.cc
+++ b/test/unittests/compiler/opcodes-unittest.cc
@@ -64,6 +64,21 @@ bool IsConstantOpcode(IrOpcode::Value opcode) {
 }
 
 
+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
@@ -109,6 +124,16 @@ TEST(IrOpcodeTest, IsConstantOpcode) {
 }
 
 
+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) \