CSE2410 Fall 2014 Bounce

// Copyright 2011 the V8 project authors. All rights reserved.

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#include <stdlib.h>

#include "v8.h"

#include "debug.h"

#include "disasm.h"

#include "disassembler.h"

#include "macro-assembler.h"

#include "serialize.h"

#include "cctest.h"

using namespace v8::internal;

#define __ assm.

static void DummyStaticFunction(Object* result) {

}

TEST(DisasmIa320) {

  CcTest::InitializeVM();

  Isolate* isolate = reinterpret_cast<Isolate*>(CcTest::isolate());

  HandleScope scope(isolate);

  v8::internal::byte buffer[2048];

  Assembler assm(isolate, buffer, sizeof buffer);

  DummyStaticFunction(NULL);  // just bloody use it (DELETE; debugging)

  // Short immediate instructions

  __ adc(eax, 12345678);

  __ add(eax, Immediate(12345678));

  __ or_(eax, 12345678);

  __ sub(eax, Immediate(12345678));

  __ xor_(eax, 12345678);

  __ and_(eax, 12345678);

  Handle<FixedArray> foo = isolate->factory()->NewFixedArray(10, TENURED);

  __ cmp(eax, foo);

  // ---- This one caused crash

  __ mov(ebx,  Operand(esp, ecx, times_2, 0));  // [esp+ecx*4]

  // ---- All instructions that I can think of

  __ add(edx, ebx);

  __ add(edx, Operand(12, RelocInfo::NONE32));

  __ add(edx, Operand(ebx, 0));

  __ add(edx, Operand(ebx, 16));

  __ add(edx, Operand(ebx, 1999));

  __ add(edx, Operand(esp, 0));

  __ add(edx, Operand(esp, 16));

  __ add(edx, Operand(esp, 1999));

  __ nop();

  __ add(edi, Operand(ebp, ecx, times_4, 0));

  __ add(edi, Operand(ebp, ecx, times_4, 12));

  __ add(Operand(ebp, ecx, times_4, 12), Immediate(12));

  __ nop();

  __ add(ebx, Immediate(12));

  __ nop();

  __ adc(ecx, 12);

  __ adc(ecx, 1000);

  __ nop();

  __ and_(edx, 3);

  __ and_(edx, Operand(esp, 4));

  __ cmp(edx, 3);

  __ cmp(edx, Operand(esp, 4));

  __ cmp(Operand(ebp, ecx, times_4, 0), Immediate(1000));

  Handle<FixedArray> foo2 = isolate->factory()->NewFixedArray(10, TENURED);

  __ cmp(ebx, foo2);

  __ cmpb(ebx, Operand(ebp, ecx, times_2, 0));

  __ cmpb(Operand(ebp, ecx, times_2, 0), ebx);

  __ or_(edx, 3);

  __ xor_(edx, 3);

  __ nop();

  __ cpuid();

  __ movsx_b(edx, ecx);

  __ movsx_w(edx, ecx);

  __ movzx_b(edx, ecx);

  __ movzx_w(edx, ecx);

  __ nop();

  __ imul(edx, ecx);

  __ shld(edx, ecx);

  __ shrd(edx, ecx);

  __ bts(edx, ecx);

  __ bts(Operand(ebx, ecx, times_4, 0), ecx);

  __ nop();

  __ pushad();

  __ popad();

  __ pushfd();

  __ popfd();

  __ push(Immediate(12));

  __ push(Immediate(23456));

  __ push(ecx);

  __ push(esi);

  __ push(Operand(ebp, JavaScriptFrameConstants::kFunctionOffset));

  __ push(Operand(ebx, ecx, times_4, 0));

  __ push(Operand(ebx, ecx, times_4, 0));

  __ push(Operand(ebx, ecx, times_4, 10000));

  __ pop(edx);

  __ pop(eax);

  __ pop(Operand(ebx, ecx, times_4, 0));

  __ nop();

  __ add(edx, Operand(esp, 16));

  __ add(edx, ecx);

  __ mov_b(edx, ecx);

  __ mov_b(ecx, 6);

  __ mov_b(Operand(ebx, ecx, times_4, 10000), 6);

  __ mov_b(Operand(esp, 16), edx);

  __ mov_w(edx, Operand(esp, 16));

  __ mov_w(Operand(esp, 16), edx);

  __ nop();

  __ movsx_w(edx, Operand(esp, 12));

  __ movsx_b(edx, Operand(esp, 12));

  __ movzx_w(edx, Operand(esp, 12));

  __ movzx_b(edx, Operand(esp, 12));

  __ nop();

  __ mov(edx, 1234567);

  __ mov(edx, Operand(esp, 12));

  __ mov(Operand(ebx, ecx, times_4, 10000), Immediate(12345));

  __ mov(Operand(ebx, ecx, times_4, 10000), edx);

  __ nop();

  __ dec_b(edx);

  __ dec_b(Operand(eax, 10));

  __ dec_b(Operand(ebx, ecx, times_4, 10000));

  __ dec(edx);

  __ cdq();

  __ nop();

  __ idiv(edx);

  __ mul(edx);

  __ neg(edx);

  __ not_(edx);

  __ test(Operand(ebx, ecx, times_4, 10000), Immediate(123456));

  __ imul(edx, Operand(ebx, ecx, times_4, 10000));

  __ imul(edx, ecx, 12);

  __ imul(edx, ecx, 1000);

  __ inc(edx);

  __ inc(Operand(ebx, ecx, times_4, 10000));

  __ push(Operand(ebx, ecx, times_4, 10000));

  __ pop(Operand(ebx, ecx, times_4, 10000));

  __ call(Operand(ebx, ecx, times_4, 10000));

  __ jmp(Operand(ebx, ecx, times_4, 10000));

  __ lea(edx, Operand(ebx, ecx, times_4, 10000));

  __ or_(edx, 12345);

  __ or_(edx, Operand(ebx, ecx, times_4, 10000));

  __ nop();

  __ rcl(edx, 1);

  __ rcl(edx, 7);

  __ rcr(edx, 1);

  __ rcr(edx, 7);

  __ sar(edx, 1);

  __ sar(edx, 6);

  __ sar_cl(edx);

  __ sbb(edx, Operand(ebx, ecx, times_4, 10000));

  __ shld(edx, Operand(ebx, ecx, times_4, 10000));

  __ shl(edx, 1);

  __ shl(edx, 6);

  __ shl_cl(edx);

  __ shrd(edx, Operand(ebx, ecx, times_4, 10000));

  __ shr(edx, 1);

  __ shr(edx, 7);

  __ shr_cl(edx);

  // Immediates

  __ adc(edx, 12345);

  __ add(ebx, Immediate(12));

  __ add(Operand(edx, ecx, times_4, 10000), Immediate(12));

  __ and_(ebx, 12345);

  __ cmp(ebx, 12345);

  __ cmp(ebx, Immediate(12));

  __ cmp(Operand(edx, ecx, times_4, 10000), Immediate(12));

  __ cmpb(eax, 100);

  __ or_(ebx, 12345);

  __ sub(ebx, Immediate(12));

  __ sub(Operand(edx, ecx, times_4, 10000), Immediate(12));

  __ xor_(ebx, 12345);

  __ imul(edx, ecx, 12);

  __ imul(edx, ecx, 1000);

  __ cld();

  __ rep_movs();

  __ rep_stos();

  __ stos();

  __ sub(edx, Operand(ebx, ecx, times_4, 10000));

  __ sub(edx, ebx);

  __ test(edx, Immediate(12345));

  __ test(edx, Operand(ebx, ecx, times_8, 10000));

  __ test(Operand(esi, edi, times_1, -20000000), Immediate(300000000));

  __ test_b(edx, Operand(ecx, ebx, times_2, 1000));

  __ test_b(Operand(eax, -20), 0x9A);

  __ nop();

  __ xor_(edx, 12345);

  __ xor_(edx, Operand(ebx, ecx, times_8, 10000));

  __ bts(Operand(ebx, ecx, times_8, 10000), edx);

  __ hlt();

  __ int3();

  __ ret(0);

  __ ret(8);

  // Calls

  Label L1, L2;

  __ bind(&L1);

  __ nop();

  __ call(&L1);

  __ call(&L2);

  __ nop();

  __ bind(&L2);

  __ call(Operand(ebx, ecx, times_4, 10000));

  __ nop();

  Handle<Code> ic(isolate->builtins()->builtin(Builtins::kLoadIC_Initialize));

  __ call(ic, RelocInfo::CODE_TARGET);

  __ nop();

  __ call(FUNCTION_ADDR(DummyStaticFunction), RelocInfo::RUNTIME_ENTRY);

  __ nop();

  __ jmp(&L1);

  __ jmp(Operand(ebx, ecx, times_4, 10000));

#ifdef ENABLE_DEBUGGER_SUPPORT

  ExternalReference after_break_target =

      ExternalReference(Debug_Address::AfterBreakTarget(), isolate);

  __ jmp(Operand::StaticVariable(after_break_target));

#endif  // ENABLE_DEBUGGER_SUPPORT

  __ jmp(ic, RelocInfo::CODE_TARGET);

  __ nop();

  Label Ljcc;

  __ nop();

  // long jumps

  __ j(overflow, &Ljcc);

  __ j(no_overflow, &Ljcc);

  __ j(below, &Ljcc);

  __ j(above_equal, &Ljcc);

  __ j(equal, &Ljcc);

  __ j(not_equal, &Ljcc);

  __ j(below_equal, &Ljcc);

  __ j(above, &Ljcc);

  __ j(sign, &Ljcc);

  __ j(not_sign, &Ljcc);

  __ j(parity_even, &Ljcc);

  __ j(parity_odd, &Ljcc);

  __ j(less, &Ljcc);

  __ j(greater_equal, &Ljcc);

  __ j(less_equal, &Ljcc);

  __ j(greater, &Ljcc);

  __ nop();

  __ bind(&Ljcc);

  // short jumps

  __ j(overflow, &Ljcc);

  __ j(no_overflow, &Ljcc);

  __ j(below, &Ljcc);

  __ j(above_equal, &Ljcc);

  __ j(equal, &Ljcc);

  __ j(not_equal, &Ljcc);

  __ j(below_equal, &Ljcc);

  __ j(above, &Ljcc);

  __ j(sign, &Ljcc);

  __ j(not_sign, &Ljcc);

  __ j(parity_even, &Ljcc);

  __ j(parity_odd, &Ljcc);

  __ j(less, &Ljcc);

  __ j(greater_equal, &Ljcc);

  __ j(less_equal, &Ljcc);

  __ j(greater, &Ljcc);

  // 0xD9 instructions

  __ nop();

  __ fld(1);

  __ fld1();

  __ fldz();

  __ fldpi();

  __ fabs();

  __ fchs();

  __ fprem();

  __ fprem1();

  __ fincstp();

  __ ftst();

  __ fxch(3);

  __ fld_s(Operand(ebx, ecx, times_4, 10000));

  __ fstp_s(Operand(ebx, ecx, times_4, 10000));

  __ ffree(3);

  __ fld_d(Operand(ebx, ecx, times_4, 10000));

  __ fstp_d(Operand(ebx, ecx, times_4, 10000));

  __ nop();

  __ fild_s(Operand(ebx, ecx, times_4, 10000));

  __ fistp_s(Operand(ebx, ecx, times_4, 10000));

  __ fild_d(Operand(ebx, ecx, times_4, 10000));

  __ fistp_d(Operand(ebx, ecx, times_4, 10000));

  __ fnstsw_ax();

  __ nop();

  __ fadd(3);

  __ fsub(3);

  __ fmul(3);

  __ fdiv(3);

  __ faddp(3);

  __ fsubp(3);

  __ fmulp(3);

  __ fdivp(3);

  __ fcompp();

  __ fwait();

  __ nop();

  {

    if (CpuFeatures::IsSupported(SSE2)) {

      CpuFeatureScope fscope(&assm, SSE2);

      __ cvttss2si(edx, Operand(ebx, ecx, times_4, 10000));

      __ cvtsi2sd(xmm1, Operand(ebx, ecx, times_4, 10000));

      __ movsd(xmm1, Operand(ebx, ecx, times_4, 10000));

      __ movsd(Operand(ebx, ecx, times_4, 10000), xmm1);

      __ movaps(xmm0, xmm1);

      // 128 bit move instructions.

      __ movdqa(xmm0, Operand(ebx, ecx, times_4, 10000));

      __ movdqa(Operand(ebx, ecx, times_4, 10000), xmm0);

      __ movdqu(xmm0, Operand(ebx, ecx, times_4, 10000));

      __ movdqu(Operand(ebx, ecx, times_4, 10000), xmm0);

      __ addsd(xmm1, xmm0);

      __ mulsd(xmm1, xmm0);

      __ subsd(xmm1, xmm0);

      __ divsd(xmm1, xmm0);

      __ ucomisd(xmm0, xmm1);

      __ cmpltsd(xmm0, xmm1);

      __ andps(xmm0, xmm1);

      __ andpd(xmm0, xmm1);

      __ psllq(xmm0, 17);

      __ psllq(xmm0, xmm1);

      __ psrlq(xmm0, 17);

      __ psrlq(xmm0, xmm1);

      __ por(xmm0, xmm1);

    }

  }

  // cmov.

  {

    if (CpuFeatures::IsSupported(CMOV)) {

      CpuFeatureScope use_cmov(&assm, CMOV);

      __ cmov(overflow, eax, Operand(eax, 0));

      __ cmov(no_overflow, eax, Operand(eax, 1));

      __ cmov(below, eax, Operand(eax, 2));

      __ cmov(above_equal, eax, Operand(eax, 3));

      __ cmov(equal, eax, Operand(ebx, 0));

      __ cmov(not_equal, eax, Operand(ebx, 1));

      __ cmov(below_equal, eax, Operand(ebx, 2));

      __ cmov(above, eax, Operand(ebx, 3));

      __ cmov(sign, eax, Operand(ecx, 0));

      __ cmov(not_sign, eax, Operand(ecx, 1));

      __ cmov(parity_even, eax, Operand(ecx, 2));

      __ cmov(parity_odd, eax, Operand(ecx, 3));

      __ cmov(less, eax, Operand(edx, 0));

      __ cmov(greater_equal, eax, Operand(edx, 1));

      __ cmov(less_equal, eax, Operand(edx, 2));

      __ cmov(greater, eax, Operand(edx, 3));

    }

  }

  {

    if (CpuFeatures::IsSupported(SSE2) &&

        CpuFeatures::IsSupported(SSE4_1)) {

      CpuFeatureScope scope(&assm, SSE4_1);

      __ pextrd(eax, xmm0, 1);

      __ pinsrd(xmm1, eax, 0);

      __ extractps(eax, xmm1, 0);

    }

  }

  // Nop instructions

  for (int i = 0; i < 16; i++) {

    __ Nop(i);

  }

  __ 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();

  byte* begin = Code::cast(code)->instruction_start();

  byte* end = begin + Code::cast(code)->instruction_size();

  disasm::Disassembler::Disassemble(stdout, begin, end);

#endif

}

#undef __