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

test/cctest/test-assembler-ia32.cc

 // Copyright 2011 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 @@
 #include "cctest.h"
 
 using namespace v8::internal;
 
 
 typedef int (*F0)();
 typedef int (*F1)(int x);
 typedef int (*F2)(int x, int y);
 
 
-static v8::Persistent<v8::Context> env;
-
-
-static void InitializeVM() {
-  if (env.IsEmpty()) {
-    env = v8::Context::New();
-  }
-}
-
-
 #define __ assm.
 
 TEST(AssemblerIa320) {
-  InitializeVM();
-  Isolate* isolate = reinterpret_cast<Isolate*>(env->GetIsolate());
+  CcTest::InitializeVM();
+  Isolate* isolate = reinterpret_cast<Isolate*>(CcTest::isolate());
   HandleScope scope(isolate);
 
   v8::internal::byte buffer[256];
   Assembler assm(isolate, buffer, sizeof buffer);
 
   __ mov(eax, Operand(esp, 4));
   __ add(eax, Operand(esp, 8));
   __ ret(0);
 
   CodeDesc desc;
   assm.GetCode(&desc);
   Object* code = isolate->heap()->CreateCode(
       desc,
       Code::ComputeFlags(Code::STUB),
       Handle<Code>())->ToObjectChecked();
   CHECK(code->IsCode());
 #ifdef OBJECT_PRINT
   Code::cast(code)->Print();
 #endif
   F2 f = FUNCTION_CAST<F2>(Code::cast(code)->entry());
   int res = f(3, 4);
   ::printf("f() = %d\n", res);
   CHECK_EQ(7, res);
 }
 
 
 TEST(AssemblerIa321) {
-  InitializeVM();
-  Isolate* isolate = reinterpret_cast<Isolate*>(env->GetIsolate());
+  CcTest::InitializeVM();
+  Isolate* isolate = reinterpret_cast<Isolate*>(CcTest::isolate());
   HandleScope scope(isolate);
 
   v8::internal::byte buffer[256];
   Assembler assm(isolate, buffer, sizeof buffer);
   Label L, C;
 
   __ mov(edx, Operand(esp, 4));
   __ xor_(eax, eax);  // clear eax
   __ jmp(&C);
 
@@ skipping 17 matching lines @@
   Code::cast(code)->Print();
 #endif
   F1 f = FUNCTION_CAST<F1>(Code::cast(code)->entry());
   int res = f(100);
   ::printf("f() = %d\n", res);
   CHECK_EQ(5050, res);
 }
 
 
 TEST(AssemblerIa322) {
-  InitializeVM();
-  Isolate* isolate = reinterpret_cast<Isolate*>(env->GetIsolate());
+  CcTest::InitializeVM();
+  Isolate* isolate = reinterpret_cast<Isolate*>(CcTest::isolate());
   HandleScope scope(isolate);
 
   v8::internal::byte buffer[256];
   Assembler assm(isolate, buffer, sizeof buffer);
   Label L, C;
 
   __ mov(edx, Operand(esp, 4));
   __ mov(eax, 1);
   __ jmp(&C);
 
@@ skipping 23 matching lines @@
   F1 f = FUNCTION_CAST<F1>(Code::cast(code)->entry());
   int res = f(10);
   ::printf("f() = %d\n", res);
   CHECK_EQ(3628800, res);
 }
 
 
 typedef int (*F3)(float x);
 
 TEST(AssemblerIa323) {
-  InitializeVM();
+  CcTest::InitializeVM();
   if (!CpuFeatures::IsSupported(SSE2)) return;
 
-  Isolate* isolate = reinterpret_cast<Isolate*>(env->GetIsolate());
+  Isolate* isolate = reinterpret_cast<Isolate*>(CcTest::isolate());
   HandleScope scope(isolate);
 
   v8::internal::byte buffer[256];
   Assembler assm(isolate, buffer, sizeof buffer);
 
   CHECK(CpuFeatures::IsSupported(SSE2));
   { CpuFeatureScope fscope(&assm, SSE2);
     __ cvttss2si(eax, Operand(esp, 4));
     __ ret(0);
   }
@@ skipping 12 matching lines @@
   F3 f = FUNCTION_CAST<F3>(code->entry());
   int res = f(static_cast<float>(-3.1415));
   ::printf("f() = %d\n", res);
   CHECK_EQ(-3, res);
 }
 
 
 typedef int (*F4)(double x);
 
 TEST(AssemblerIa324) {
-  InitializeVM();
+  CcTest::InitializeVM();
   if (!CpuFeatures::IsSupported(SSE2)) return;
 
-  Isolate* isolate = reinterpret_cast<Isolate*>(env->GetIsolate());
+  Isolate* isolate = reinterpret_cast<Isolate*>(CcTest::isolate());
   HandleScope scope(isolate);
 
   v8::internal::byte buffer[256];
   Assembler assm(isolate, buffer, sizeof buffer);
 
   CHECK(CpuFeatures::IsSupported(SSE2));
   CpuFeatureScope fscope(&assm, SSE2);
   __ cvttsd2si(eax, Operand(esp, 4));
   __ ret(0);
 
@@ skipping 10 matching lines @@
                      code->instruction_start() + code->instruction_size());
   F4 f = FUNCTION_CAST<F4>(code->entry());
   int res = f(2.718281828);
   ::printf("f() = %d\n", res);
   CHECK_EQ(2, res);
 }
 
 
 static int baz = 42;
 TEST(AssemblerIa325) {
-  InitializeVM();
-  Isolate* isolate = reinterpret_cast<Isolate*>(env->GetIsolate());
+  CcTest::InitializeVM();
+  Isolate* isolate = reinterpret_cast<Isolate*>(CcTest::isolate());
   HandleScope scope(isolate);
 
   v8::internal::byte buffer[256];
   Assembler assm(isolate, buffer, sizeof buffer);
 
   __ mov(eax, Operand(reinterpret_cast<intptr_t>(&baz), RelocInfo::NONE32));
   __ ret(0);
 
   CodeDesc desc;
   assm.GetCode(&desc);
   Code* code = Code::cast(isolate->heap()->CreateCode(
       desc,
       Code::ComputeFlags(Code::STUB),
       Handle<Code>())->ToObjectChecked());
   F0 f = FUNCTION_CAST<F0>(code->entry());
   int res = f();
   CHECK_EQ(42, res);
 }
 
 
 typedef double (*F5)(double x, double y);
 
 TEST(AssemblerIa326) {
-  InitializeVM();
+  CcTest::InitializeVM();
   if (!CpuFeatures::IsSupported(SSE2)) return;
 
-  Isolate* isolate = reinterpret_cast<Isolate*>(env->GetIsolate());
+  Isolate* isolate = reinterpret_cast<Isolate*>(CcTest::isolate());
   HandleScope scope(isolate);
   v8::internal::byte buffer[256];
   Assembler assm(isolate, buffer, sizeof buffer);
 
   CpuFeatureScope fscope(&assm, SSE2);
   __ movdbl(xmm0, Operand(esp, 1 * kPointerSize));
   __ movdbl(xmm1, Operand(esp, 3 * kPointerSize));
   __ addsd(xmm0, xmm1);
   __ mulsd(xmm0, xmm1);
   __ subsd(xmm0, xmm1);
@@ skipping 22 matching lines @@
   F5 f = FUNCTION_CAST<F5>(code->entry());
   double res = f(2.2, 1.1);
   ::printf("f() = %f\n", res);
   CHECK(2.29 < res && res < 2.31);
 }
 
 
 typedef double (*F6)(int x);
 
 TEST(AssemblerIa328) {
-  InitializeVM();
+  CcTest::InitializeVM();
   if (!CpuFeatures::IsSupported(SSE2)) return;
 
-  Isolate* isolate = reinterpret_cast<Isolate*>(env->GetIsolate());
+  Isolate* isolate = reinterpret_cast<Isolate*>(CcTest::isolate());
   HandleScope scope(isolate);
   v8::internal::byte buffer[256];
   Assembler assm(isolate, buffer, sizeof buffer);
   CpuFeatureScope fscope(&assm, SSE2);
   __ mov(eax, Operand(esp, 4));
   __ cvtsi2sd(xmm0, eax);
   // Copy xmm0 to st(0) using eight bytes of stack.
   __ sub(esp, Immediate(8));
   __ movdbl(Operand(esp, 0), xmm0);
   __ fld_d(Operand(esp, 0));
@@ skipping 13 matching lines @@
   double res = f(12);
 
   ::printf("f() = %f\n", res);
   CHECK(11.99 < res && res < 12.001);
 }
 
 
 typedef int (*F7)(double x, double y);
 
 TEST(AssemblerIa329) {
-  InitializeVM();
-  Isolate* isolate = reinterpret_cast<Isolate*>(env->GetIsolate());
+  CcTest::InitializeVM();
+  Isolate* isolate = reinterpret_cast<Isolate*>(CcTest::isolate());
   HandleScope scope(isolate);
   v8::internal::byte buffer[256];
   MacroAssembler assm(isolate, buffer, sizeof buffer);
   enum { kEqual = 0, kGreater = 1, kLess = 2, kNaN = 3, kUndefined = 4 };
   Label equal_l, less_l, greater_l, nan_l;
   __ fld_d(Operand(esp, 3 * kPointerSize));
   __ fld_d(Operand(esp, 1 * kPointerSize));
   __ FCmp();
   __ j(parity_even, &nan_l);
   __ j(equal, &equal_l);
@@ skipping 34 matching lines @@
   F7 f = FUNCTION_CAST<F7>(Code::cast(code)->entry());
   CHECK_EQ(kLess, f(1.1, 2.2));
   CHECK_EQ(kEqual, f(2.2, 2.2));
   CHECK_EQ(kGreater, f(3.3, 2.2));
   CHECK_EQ(kNaN, f(OS::nan_value(), 1.1));
 }
 
 
 TEST(AssemblerIa3210) {
   // Test chaining of label usages within instructions (issue 1644).
-  InitializeVM();
-  Isolate* isolate = reinterpret_cast<Isolate*>(env->GetIsolate());
+  CcTest::InitializeVM();
+  Isolate* isolate = reinterpret_cast<Isolate*>(CcTest::isolate());
   HandleScope scope(isolate);
   Assembler assm(isolate, NULL, 0);
 
   Label target;
   __ j(equal, &target);
   __ j(not_equal, &target);
   __ bind(&target);
   __ nop();
 }
 
 
 TEST(AssemblerMultiByteNop) {
-  InitializeVM();
-  Isolate* isolate = reinterpret_cast<Isolate*>(env->GetIsolate());
+  CcTest::InitializeVM();
+  Isolate* isolate = reinterpret_cast<Isolate*>(CcTest::isolate());
   HandleScope scope(isolate);
   v8::internal::byte buffer[1024];
   Assembler assm(isolate, buffer, sizeof(buffer));
   __ push(ebx);
   __ push(ecx);
   __ push(edx);
   __ push(edi);
   __ push(esi);
   __ mov(eax, 1);
   __ mov(ebx, 2);
@@ skipping 46 matching lines @@
 
   F0 f = FUNCTION_CAST<F0>(code->entry());
   int res = f();
   CHECK_EQ(42, res);
 }
 
 
 
 
 #undef __