Unify the way cctest initalizes the VM for each test case.

test/cctest/test-assembler-mips.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 26 matching lines @@
 
 using namespace v8::internal;
 
 
 // Define these function prototypes to match JSEntryFunction in execution.cc.
 typedef Object* (*F1)(int x, int p1, int p2, int p3, int p4);
 typedef Object* (*F2)(int x, int y, int p2, int p3, int p4);
 typedef Object* (*F3)(void* p, int p1, int p2, int p3, int p4);
 
 
-static v8::Persistent<v8::Context> env;
-
-
-static void InitializeVM() {
-  // Disable compilation of natives.
-  FLAG_disable_native_files = true;
-
-  if (env.IsEmpty()) {
-    env = v8::Context::New();
-  }
-}
-
-
 #define __ assm.
 
 
 TEST(MIPS0) {
-  InitializeVM();
+  CcTest::InitializeVM();
   Isolate* isolate = Isolate::Current();
   HandleScope scope(isolate);
 
   MacroAssembler assm(isolate, NULL, 0);
 
   // Addition.
   __ addu(v0, a0, a1);
   __ jr(ra);
   __ nop();
 
   CodeDesc desc;
   assm.GetCode(&desc);
   Object* code = HEAP->CreateCode(
       desc,
       Code::ComputeFlags(Code::STUB),
       Handle<Code>())->ToObjectChecked();
   CHECK(code->IsCode());
   F2 f = FUNCTION_CAST<F2>(Code::cast(code)->entry());
   int res = reinterpret_cast<int>(CALL_GENERATED_CODE(f, 0xab0, 0xc, 0, 0, 0));
   ::printf("f() = %d\n", res);
   CHECK_EQ(0xabc, res);
 }
 
 
 TEST(MIPS1) {
-  InitializeVM();
+  CcTest::InitializeVM();
   Isolate* isolate = Isolate::Current();
   HandleScope scope(isolate);
 
   MacroAssembler assm(isolate, NULL, 0);
   Label L, C;
 
   __ mov(a1, a0);
   __ li(v0, 0);
   __ b(&C);
   __ nop();
@@ skipping 18 matching lines @@
       Handle<Code>())->ToObjectChecked();
   CHECK(code->IsCode());
   F1 f = FUNCTION_CAST<F1>(Code::cast(code)->entry());
   int res = reinterpret_cast<int>(CALL_GENERATED_CODE(f, 50, 0, 0, 0, 0));
   ::printf("f() = %d\n", res);
   CHECK_EQ(1275, res);
 }
 
 
 TEST(MIPS2) {
-  InitializeVM();
+  CcTest::InitializeVM();
   Isolate* isolate = Isolate::Current();
   HandleScope scope(isolate);
 
   MacroAssembler assm(isolate, NULL, 0);
 
   Label exit, error;
 
   // ----- Test all instructions.
 
   // Test lui, ori, and addiu, used in the li pseudo-instruction.
@@ skipping 121 matching lines @@
   CHECK(code->IsCode());
   F2 f = FUNCTION_CAST<F2>(Code::cast(code)->entry());
   int res = reinterpret_cast<int>(CALL_GENERATED_CODE(f, 0xab0, 0xc, 0, 0, 0));
   ::printf("f() = %d\n", res);
   CHECK_EQ(0x31415926, res);
 }
 
 
 TEST(MIPS3) {
   // Test floating point instructions.
-  InitializeVM();
+  CcTest::InitializeVM();
   Isolate* isolate = Isolate::Current();
   HandleScope scope(isolate);
 
   typedef struct {
     double a;
     double b;
     double c;
     double d;
     double e;
     double f;
@@ skipping 71 matching lines @@
     CHECK_EQ(1.8066e16, t.e);
     CHECK_EQ(120.44, t.f);
     CHECK_EQ(10.97451593465515908537, t.g);
     CHECK_EQ(6.875, t.h);
   }
 }
 
 
 TEST(MIPS4) {
   // Test moves between floating point and integer registers.
-  InitializeVM();
+  CcTest::InitializeVM();
   Isolate* isolate = Isolate::Current();
   HandleScope scope(isolate);
 
   typedef struct {
     double a;
     double b;
     double c;
   } T;
   T t;
 
@@ skipping 40 matching lines @@
 
     CHECK_EQ(2.75e11, t.a);
     CHECK_EQ(2.75e11, t.b);
     CHECK_EQ(1.5e22, t.c);
   }
 }
 
 
 TEST(MIPS5) {
   // Test conversions between doubles and integers.
-  InitializeVM();
+  CcTest::InitializeVM();
   Isolate* isolate = Isolate::Current();
   HandleScope scope(isolate);
 
   typedef struct {
     double a;
     double b;
     int i;
     int j;
   } T;
   T t;
@@ skipping 51 matching lines @@
     CHECK_EQ(12345678.0, t.a);
     CHECK_EQ(-100000.0, t.b);
     CHECK_EQ(15000, t.i);
     CHECK_EQ(275000000, t.j);
   }
 }
 
 
 TEST(MIPS6) {
   // Test simple memory loads and stores.
-  InitializeVM();
+  CcTest::InitializeVM();
   Isolate* isolate = Isolate::Current();
   HandleScope scope(isolate);
 
   typedef struct {
     uint32_t ui;
     int32_t si;
     int32_t r1;
     int32_t r2;
     int32_t r3;
     int32_t r4;
@@ skipping 52 matching lines @@
   CHECK_EQ(0x3344, t.r2);
   CHECK_EQ(0xffffbbcc, t.r3);
   CHECK_EQ(0x0000bbcc, t.r4);
   CHECK_EQ(0xffffffcc, t.r5);
   CHECK_EQ(0x3333bbcc, t.r6);
 }
 
 
 TEST(MIPS7) {
   // Test floating point compare and branch instructions.
-  InitializeVM();
+  CcTest::InitializeVM();
   Isolate* isolate = Isolate::Current();
   HandleScope scope(isolate);
 
   typedef struct {
     double a;
     double b;
     double c;
     double d;
     double e;
     double f;
@@ skipping 61 matching lines @@
     USE(dummy);
     CHECK_EQ(1.5e14, t.a);
     CHECK_EQ(2.75e11, t.b);
     CHECK_EQ(1, t.result);
   }
 }
 
 
 TEST(MIPS8) {
   // Test ROTR and ROTRV instructions.
-  InitializeVM();
+  CcTest::InitializeVM();
   Isolate* isolate = Isolate::Current();
   HandleScope scope(isolate);
 
   typedef struct {
     int32_t input;
     int32_t result_rotr_4;
     int32_t result_rotr_8;
     int32_t result_rotr_12;
     int32_t result_rotr_16;
     int32_t result_rotr_20;
@@ skipping 84 matching lines @@
   CHECK_EQ(0x67812345, t.result_rotrv_12);
   CHECK_EQ(0x56781234, t.result_rotrv_16);
   CHECK_EQ(0x45678123, t.result_rotrv_20);
   CHECK_EQ(0x34567812, t.result_rotrv_24);
   CHECK_EQ(0x23456781, t.result_rotrv_28);
 }
 
 
 TEST(MIPS9) {
   // Test BRANCH improvements.
-  InitializeVM();
+  CcTest::InitializeVM();
   Isolate* isolate = Isolate::Current();
   HandleScope scope(isolate);
 
   MacroAssembler assm(isolate, NULL, 0);
   Label exit, exit2, exit3;
 
   __ Branch(&exit, ge, a0, Operand(0x00000000));
   __ Branch(&exit2, ge, a0, Operand(0x00001FFF));
   __ Branch(&exit3, ge, a0, Operand(0x0001FFFF));
 
   __ bind(&exit);
   __ bind(&exit2);
   __ bind(&exit3);
   __ jr(ra);
   __ nop();
 
   CodeDesc desc;
   assm.GetCode(&desc);
   Object* code = HEAP->CreateCode(
       desc,
       Code::ComputeFlags(Code::STUB),
       Handle<Code>())->ToObjectChecked();
   CHECK(code->IsCode());
 }
 
 
 TEST(MIPS10) {
   // Test conversions between doubles and long integers.
   // Test hos the long ints map to FP regs pairs.
-  InitializeVM();
+  CcTest::InitializeVM();
   Isolate* isolate = Isolate::Current();
   HandleScope scope(isolate);
 
   typedef struct {
     double a;
     double b;
     int32_t dbl_mant;
     int32_t dbl_exp;
     int32_t long_hi;
     int32_t long_lo;
@@ skipping 54 matching lines @@
     CHECK_EQ(0, t.long_hi);
     CHECK_EQ(0x7fffffff, t.long_lo);
     // 0xFF00FF00FF -> 1.095233372415e12.
     CHECK_EQ(1.095233372415e12, t.b);
   }
 }
 
 
 TEST(MIPS11) {
   // Test LWL, LWR, SWL and SWR instructions.
-  InitializeVM();
+  CcTest::InitializeVM();
   Isolate* isolate = Isolate::Current();
   HandleScope scope(isolate);
 
   typedef struct {
     int32_t reg_init;
     int32_t mem_init;
     int32_t lwl_0;
     int32_t lwl_1;
     int32_t lwl_2;
     int32_t lwl_3;
@@ skipping 123 matching lines @@
   CHECK_EQ(0xaabbccdd, t.swl_3);
 
   CHECK_EQ(0xaabbccdd, t.swr_0);
   CHECK_EQ(0xbbccdd44, t.swr_1);
   CHECK_EQ(0xccdd3344, t.swr_2);
   CHECK_EQ(0xdd223344, t.swr_3);
 }
 
 
 TEST(MIPS12) {
-  InitializeVM();
+  CcTest::InitializeVM();
   Isolate* isolate = Isolate::Current();
   HandleScope scope(isolate);
 
   typedef struct {
       int32_t  x;
       int32_t  y;
       int32_t  y1;
       int32_t  y2;
       int32_t  y3;
       int32_t  y4;
@@ skipping 71 matching lines @@
 
   Object* dummy = CALL_GENERATED_CODE(f, &t, 0, 0, 0, 0);
   USE(dummy);
 
   CHECK_EQ(3, t.y1);
 }
 
 
 TEST(MIPS13) {
   // Test Cvt_d_uw and Trunc_uw_d macros.
-  InitializeVM();
+  CcTest::InitializeVM();
   Isolate* isolate = Isolate::Current();
   HandleScope scope(isolate);
 
   typedef struct {
     double cvt_big_out;
     double cvt_small_out;
     uint32_t trunc_big_out;
     uint32_t trunc_small_out;
     uint32_t cvt_big_in;
     uint32_t cvt_small_in;
@@ skipping 42 matching lines @@
 
     CHECK_EQ(static_cast<int>(t.trunc_big_out), static_cast<int>(t.cvt_big_in));
     CHECK_EQ(static_cast<int>(t.trunc_small_out),
              static_cast<int>(t.cvt_small_in));
   }
 }
 
 
 TEST(MIPS14) {
   // Test round, floor, ceil, trunc, cvt.
-  InitializeVM();
+  CcTest::InitializeVM();
   Isolate* isolate = Isolate::Current();
   HandleScope scope(isolate);
 
 #define ROUND_STRUCT_ELEMENT(x) \
   int32_t x##_up_out; \
   int32_t x##_down_out; \
   int32_t neg_##x##_up_out; \
   int32_t neg_##x##_down_out; \
   uint32_t x##_err1_out; \
   uint32_t x##_err2_out; \
@@ skipping 116 matching lines @@
     CHECK_ROUND_RESULT(round);
     CHECK_ROUND_RESULT(floor);
     CHECK_ROUND_RESULT(ceil);
     CHECK_ROUND_RESULT(cvt);
   }
 }
 
 
 TEST(MIPS15) {
   // Test chaining of label usages within instructions (issue 1644).
-  InitializeVM();
+  CcTest::InitializeVM();
   Isolate* isolate = Isolate::Current();
   HandleScope scope(isolate);
   Assembler assm(isolate, NULL, 0);
 
   Label target;
   __ beq(v0, v1, &target);
   __ nop();
   __ bne(v0, v1, &target);
   __ nop();
   __ bind(&target);
   __ nop();
 }
 
 #undef __