deps/v8/test/cctest/compiler/test-linkage.cc

   1 // Copyright 2014 the V8 project authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "src/v8.h"
   6
   7 #include "src/code-stubs.h"
   8 #include "src/compiler.h"
   9 #include "src/zone.h"
  10
  11 #include "src/compiler/common-operator.h"
  12 #include "src/compiler/graph.h"
  13 #include "src/compiler/linkage.h"
  14 #include "src/compiler/machine-operator.h"
  15 #include "src/compiler/node.h"
  16 #include "src/compiler/operator.h"
  17 #include "src/compiler/pipeline.h"
  18 #include "src/compiler/schedule.h"
  19 #include "test/cctest/cctest.h"
  20
  21 #if V8_TURBOFAN_TARGET
  22
  23 using namespace v8::internal;
  24 using namespace v8::internal::compiler;
  25
  26 static Operator dummy_operator(IrOpcode::kParameter, Operator::kNoWrite,
  27                                "dummy", 0, 0, 0, 0, 0, 0);
  28
  29 // So we can get a real JS function.
  30 static Handle<JSFunction> Compile(const char* source) {
  31   Isolate* isolate = CcTest::i_isolate();
  32   Handle<String> source_code = isolate->factory()
  33                                    ->NewStringFromUtf8(CStrVector(source))
  34                                    .ToHandleChecked();
  35   Handle<SharedFunctionInfo> shared_function = Compiler::CompileScript(
  36       source_code, Handle<String>(), 0, 0, false, false,
  37       Handle<Context>(isolate->native_context()), NULL, NULL,
  38       v8::ScriptCompiler::kNoCompileOptions, NOT_NATIVES_CODE, false);
  39   return isolate->factory()->NewFunctionFromSharedFunctionInfo(
  40       shared_function, isolate->native_context());
  41 }
  42
  43
  44 TEST(TestLinkageCreate) {
  45   InitializedHandleScope handles;
  46   Handle<JSFunction> function = Compile("a + b");
  47   CompilationInfoWithZone info(function);
  48   CallDescriptor* descriptor = Linkage::ComputeIncoming(info.zone(), &info);
  49   CHECK(descriptor);
  50 }
  51
  52
  53 TEST(TestLinkageJSFunctionIncoming) {
  54   InitializedHandleScope handles;
  55
  56   const char* sources[] = {"(function() { })", "(function(a) { })",
  57                            "(function(a,b) { })", "(function(a,b,c) { })"};
  58
  59   for (int i = 0; i < 3; i++) {
  60     i::HandleScope handles(CcTest::i_isolate());
  61     Handle<JSFunction> function = v8::Utils::OpenHandle(
  62         *v8::Handle<v8::Function>::Cast(CompileRun(sources[i])));
  63     CompilationInfoWithZone info(function);
  64     CallDescriptor* descriptor = Linkage::ComputeIncoming(info.zone(), &info);
  65     CHECK(descriptor);
  66
  67     CHECK_EQ(1 + i, static_cast<int>(descriptor->JSParameterCount()));
  68     CHECK_EQ(1, static_cast<int>(descriptor->ReturnCount()));
  69     CHECK_EQ(Operator::kNoProperties, descriptor->properties());
  70     CHECK_EQ(true, descriptor->IsJSFunctionCall());
  71   }
  72 }
  73
  74
  75 TEST(TestLinkageCodeStubIncoming) {
  76   Isolate* isolate = CcTest::InitIsolateOnce();
  77   ToNumberStub stub(isolate);
  78   CompilationInfoWithZone info(&stub, isolate);
  79   CallDescriptor* descriptor = Linkage::ComputeIncoming(info.zone(), &info);
  80   CHECK(descriptor);
  81   CHECK_EQ(1, static_cast<int>(descriptor->JSParameterCount()));
  82   CHECK_EQ(1, static_cast<int>(descriptor->ReturnCount()));
  83   CHECK_EQ(Operator::kNoProperties, descriptor->properties());
  84   CHECK_EQ(false, descriptor->IsJSFunctionCall());
  85 }
  86
  87
  88 TEST(TestLinkageJSCall) {
  89   HandleAndZoneScope handles;
  90   Handle<JSFunction> function = Compile("a + c");
  91   CompilationInfoWithZone info(function);
  92
  93   for (int i = 0; i < 32; i++) {
  94     CallDescriptor* descriptor = Linkage::GetJSCallDescriptor(
  95         info.zone(), false, i, CallDescriptor::kNoFlags);
  96     CHECK(descriptor);
  97     CHECK_EQ(i, static_cast<int>(descriptor->JSParameterCount()));
  98     CHECK_EQ(1, static_cast<int>(descriptor->ReturnCount()));
  99     CHECK_EQ(Operator::kNoProperties, descriptor->properties());
 100     CHECK_EQ(true, descriptor->IsJSFunctionCall());
 101   }
 102 }
 103
 104
 105 TEST(TestLinkageRuntimeCall) {
 106   // TODO(titzer): test linkage creation for outgoing runtime calls.
 107 }
 108
 109
 110 TEST(TestLinkageStubCall) {
 111   // TODO(titzer): test linkage creation for outgoing stub calls.
 112 }
 113
 114
 115 #endif  // V8_TURBOFAN_TARGET