v8/test/unittests/interpreter/bytecode-decoder-unittest.cc
Benedikt Meurer 74adec5b3b [cleanup] Remove obsolete runtime functions.
Remove %ToPrimitive, %ToPrimitive_Number, %SameValue and %SameValueZero,
as these runtime functions were only used from tests. For the %SameValue
we use Object.is() to test the internal algorithm (the actual one even),
and for %SameValueZero we use Set#has() - this was already the case for
most uses anyways.

Also drop %IsDate and %ValueOf, which didn't have uses at all.

Bug: v8:8015
Change-Id: Ice26d25e68aed4d5d8adac0547c56aedf9826b13
Reviewed-on: https://chromium-review.googlesource.com/1237677
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#56127}
2018-09-21 10:59:12 +00:00

105 lines
3.2 KiB
C++

// Copyright 2015 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <vector>
#include "src/v8.h"
#include "src/contexts.h"
#include "src/interpreter/bytecode-decoder.h"
#include "src/runtime/runtime.h"
#include "test/unittests/interpreter/bytecode-utils.h"
#include "test/unittests/test-utils.h"
namespace v8 {
namespace internal {
namespace interpreter {
#define B(Name) static_cast<uint8_t>(Bytecode::k##Name)
TEST(BytecodeDecoder, DecodeBytecodeAndOperands) {
struct BytecodesAndResult {
const uint8_t bytecode[32];
const size_t length;
int parameter_count;
const char* output;
};
const BytecodesAndResult cases[] = {
{{B(LdaSmi), U8(1)}, 2, 0, " LdaSmi [1]"},
{{B(Wide), B(LdaSmi), U16(1000)}, 4, 0, " LdaSmi.Wide [1000]"},
{{B(ExtraWide), B(LdaSmi), U32(100000)},
6,
0,
"LdaSmi.ExtraWide [100000]"},
{{B(LdaSmi), U8(-1)}, 2, 0, " LdaSmi [-1]"},
{{B(Wide), B(LdaSmi), U16(-1000)}, 4, 0, " LdaSmi.Wide [-1000]"},
{{B(ExtraWide), B(LdaSmi), U32(-100000)},
6,
0,
"LdaSmi.ExtraWide [-100000]"},
{{B(Star), R8(5)}, 2, 0, " Star r5"},
{{B(Wide), B(Star), R16(136)}, 4, 0, " Star.Wide r136"},
{{B(Wide), B(CallAnyReceiver), R16(134), R16(135), U16(10), U16(177)},
10,
0,
"CallAnyReceiver.Wide r134, r135-r144, [177]"},
{{B(ForInPrepare), R8(10), U8(11)},
3,
0,
" ForInPrepare r10-r12, [11]"},
{{B(CallRuntime), U16(Runtime::FunctionId::kIsSmi), R8(0), U8(0)},
5,
0,
" CallRuntime [IsSmi], r0-r0"},
{{B(Ldar),
static_cast<uint8_t>(Register::FromParameterIndex(2, 3).ToOperand())},
2,
3,
" Ldar a1"},
{{B(Wide), B(CreateObjectLiteral), U16(513), U16(1027), U8(165),
R16(137)},
9,
0,
"CreateObjectLiteral.Wide [513], [1027], #165, r137"},
{{B(ExtraWide), B(JumpIfNull), U32(123456789)},
6,
0,
"JumpIfNull.ExtraWide [123456789]"},
{{B(CallJSRuntime), U8(Context::BOOLEAN_FUNCTION_INDEX), R8(0), U8(0)},
4,
0,
" CallJSRuntime [boolean_function], r0-r0"}};
for (size_t i = 0; i < arraysize(cases); ++i) {
// Generate reference string by prepending formatted bytes.
std::stringstream expected_ss;
std::ios default_format(nullptr);
default_format.copyfmt(expected_ss);
// Match format of BytecodeDecoder::Decode() for byte representations.
expected_ss.fill('0');
expected_ss.flags(std::ios::right | std::ios::hex);
for (size_t b = 0; b < cases[i].length; b++) {
expected_ss << std::setw(2) << static_cast<uint32_t>(cases[i].bytecode[b])
<< ' ';
}
expected_ss.copyfmt(default_format);
expected_ss << cases[i].output;
// Generate decoded byte output.
std::stringstream actual_ss;
BytecodeDecoder::Decode(actual_ss, cases[i].bytecode,
cases[i].parameter_count);
// Compare.
CHECK_EQ(actual_ss.str(), expected_ss.str());
}
}
#undef B
} // namespace interpreter
} // namespace internal
} // namespace v8