v8/test/cctest/test-macro-assembler-arm.cc

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#include <stdlib.h>

#include "src/v8.h"
#include "test/cctest/cctest.h"

#include "src/macro-assembler.h"

#include "src/arm/macro-assembler-arm.h"
#include "src/arm/simulator-arm.h"


using namespace v8::internal;

typedef void* (*F)(int x, int y, int p2, int p3, int p4);

#define __ masm->

typedef int (*F5)(void*, void*, void*, void*, void*);


TEST(LoadAndStoreWithRepresentation) {
  // Allocate an executable page of memory.
  size_t actual_size;
  byte* buffer = static_cast<byte*>(v8::base::OS::Allocate(
      Assembler::kMinimalBufferSize, &actual_size, true));
  CHECK(buffer);
  Isolate* isolate = CcTest::i_isolate();
  HandleScope handles(isolate);
  MacroAssembler assembler(isolate, buffer, static_cast<int>(actual_size),
                           v8::internal::CodeObjectRequired::kYes);
  MacroAssembler* masm = &assembler;  // Create a pointer for the __ macro.
  __ sub(sp, sp, Operand(1 * kPointerSize));
  Label exit;

  // Test 1.
  __ mov(r0, Operand(1));  // Test number.
  __ mov(r1, Operand(0));
  __ str(r1, MemOperand(sp, 0 * kPointerSize));
  __ mov(r2, Operand(-1));
  __ Store(r2, MemOperand(sp, 0 * kPointerSize), Representation::UInteger8());
  __ ldr(r3, MemOperand(sp, 0 * kPointerSize));
  __ mov(r2, Operand(255));
  __ cmp(r3, r2);
  __ b(ne, &exit);
  __ mov(r2, Operand(255));
  __ Load(r3, MemOperand(sp, 0 * kPointerSize), Representation::UInteger8());
  __ cmp(r3, r2);
  __ b(ne, &exit);

  // Test 2.
  __ mov(r0, Operand(2));  // Test number.
  __ mov(r1, Operand(0));
  __ str(r1, MemOperand(sp, 0 * kPointerSize));
  __ mov(r2, Operand(-1));
  __ Store(r2, MemOperand(sp, 0 * kPointerSize), Representation::Integer8());
  __ ldr(r3, MemOperand(sp, 0 * kPointerSize));
  __ mov(r2, Operand(255));
  __ cmp(r3, r2);
  __ b(ne, &exit);
  __ mov(r2, Operand(-1));
  __ Load(r3, MemOperand(sp, 0 * kPointerSize), Representation::Integer8());
  __ cmp(r3, r2);
  __ b(ne, &exit);

  // Test 3.
  __ mov(r0, Operand(3));  // Test number.
  __ mov(r1, Operand(0));
  __ str(r1, MemOperand(sp, 0 * kPointerSize));
  __ mov(r2, Operand(-1));
  __ Store(r2, MemOperand(sp, 0 * kPointerSize), Representation::UInteger16());
  __ ldr(r3, MemOperand(sp, 0 * kPointerSize));
  __ mov(r2, Operand(65535));
  __ cmp(r3, r2);
  __ b(ne, &exit);
  __ mov(r2, Operand(65535));
  __ Load(r3, MemOperand(sp, 0 * kPointerSize), Representation::UInteger16());
  __ cmp(r3, r2);
  __ b(ne, &exit);

  // Test 4.
  __ mov(r0, Operand(4));  // Test number.
  __ mov(r1, Operand(0));
  __ str(r1, MemOperand(sp, 0 * kPointerSize));
  __ mov(r2, Operand(-1));
  __ Store(r2, MemOperand(sp, 0 * kPointerSize), Representation::Integer16());
  __ ldr(r3, MemOperand(sp, 0 * kPointerSize));
  __ mov(r2, Operand(65535));
  __ cmp(r3, r2);
  __ b(ne, &exit);
  __ mov(r2, Operand(-1));
  __ Load(r3, MemOperand(sp, 0 * kPointerSize), Representation::Integer16());
  __ cmp(r3, r2);
  __ b(ne, &exit);

  __ mov(r0, Operand(0));  // Success.
  __ bind(&exit);
  __ add(sp, sp, Operand(1 * kPointerSize));
  __ bx(lr);

  CodeDesc desc;
  masm->GetCode(&desc);
  Handle<Code> code = isolate->factory()->NewCode(
      desc, Code::ComputeFlags(Code::STUB), Handle<Code>());

  // Call the function from C++.
  F5 f = FUNCTION_CAST<F5>(code->entry());
  CHECK(!CALL_GENERATED_CODE(isolate, f, 0, 0, 0, 0, 0));
}

#undef __