Revert of [x64] Generate test reg,reg instead of cmp reg,0.

src/compiler/x64/code-generator-x64.cc

Index: src/compiler/x64/code-generator-x64.cc
diff --git a/src/compiler/x64/code-generator-x64.cc b/src/compiler/x64/code-generator-x64.cc
index 8966fff01c60fe73d9737410bfa604a17aa138e4..973bbd1ef06bb794d153701c380eeae63b2c4057 100644
--- a/src/compiler/x64/code-generator-x64.cc
+++ b/src/compiler/x64/code-generator-x64.cc
@@ -209,27 +209,6 @@
     }                                                          \
   } while (0)
 
-
-#define ASSEMBLE_CMP(cmp_instr, test_instr)                      \
-  do {                                                           \
-    if (HasImmediateInput(instr, 1)) {                           \
-      if (instr->InputAt(0)->IsRegister()) {                     \
-        if (i.InputInt32(1) == 0) {                              \
-          __ test_instr(i.InputRegister(0), i.InputRegister(0)); \
-        } else {                                                 \
-          __ cmp_instr(i.InputRegister(0), i.InputImmediate(1)); \
-        }                                                        \
-      } else {                                                   \
-        __ cmp_instr(i.InputOperand(0), i.InputImmediate(1));    \
-      }                                                          \
-    } else {                                                     \
-      if (instr->InputAt(1)->IsRegister()) {                     \
-        __ cmp_instr(i.InputRegister(0), i.InputRegister(1));    \
-      } else {                                                   \
-        __ cmp_instr(i.InputRegister(0), i.InputOperand(1));     \
-      }                                                          \
-    }                                                            \
-  } while (0)
 
 #define ASSEMBLE_MULT(asm_instr)                              \
   do {                                                        \
@@ -609,10 +588,10 @@
       ASSEMBLE_BINOP(andq);
       break;
     case kX64Cmp32:
-      ASSEMBLE_CMP(cmpl, testl);
+      ASSEMBLE_BINOP(cmpl);
       break;
     case kX64Cmp:
-      ASSEMBLE_CMP(cmpq, testq);
+      ASSEMBLE_BINOP(cmpq);
       break;
     case kX64Test32:
       ASSEMBLE_BINOP(testl);