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f226350fcb
PR-URL: https://github.com/nodejs/node/pull/47251 Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com> Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com> Reviewed-By: Richard Lau <rlau@redhat.com>
132 lines
4.2 KiB
C++
132 lines
4.2 KiB
C++
// Copyright 2018 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "src/codegen/macro-assembler.h"
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#include "src/codegen/ppc/assembler-ppc-inl.h"
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#include "src/execution/simulator.h"
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#include "test/common/assembler-tester.h"
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#include "test/unittests/test-utils.h"
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#include "testing/gtest-support.h"
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namespace v8 {
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namespace internal {
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#define __ masm.
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// Test the ppc assembler by compiling some simple functions into
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// a buffer and executing them. These tests do not initialize the
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// V8 library, create a context, or use any V8 objects.
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class MacroAssemblerTest : public TestWithIsolate {};
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TEST_F(MacroAssemblerTest, TestHardAbort) {
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auto buffer = AllocateAssemblerBuffer();
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MacroAssembler masm(isolate(), AssemblerOptions{}, CodeObjectRequired::kNo,
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buffer->CreateView());
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__ set_root_array_available(false);
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__ set_abort_hard(true);
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__ Abort(AbortReason::kNoReason);
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CodeDesc desc;
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masm.GetCode(isolate(), &desc);
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buffer->MakeExecutable();
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// We need an isolate here to execute in the simulator.
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auto f = GeneratedCode<void>::FromBuffer(isolate(), buffer->start());
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ASSERT_DEATH_IF_SUPPORTED({ f.Call(); }, "abort: no reason");
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}
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TEST_F(MacroAssemblerTest, TestCheck) {
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auto buffer = AllocateAssemblerBuffer();
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MacroAssembler masm(isolate(), AssemblerOptions{}, CodeObjectRequired::kNo,
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buffer->CreateView());
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__ set_root_array_available(false);
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__ set_abort_hard(true);
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// Fail if the first parameter is 17.
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__ mov(r4, Operand(17));
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__ cmp(r3, r4); // 1st parameter is in {r3}.
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__ Check(Condition::ne, AbortReason::kNoReason);
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__ Ret();
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CodeDesc desc;
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masm.GetCode(isolate(), &desc);
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buffer->MakeExecutable();
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// We need an isolate here to execute in the simulator.
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auto f = GeneratedCode<void, int>::FromBuffer(isolate(), buffer->start());
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f.Call(0);
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f.Call(18);
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ASSERT_DEATH_IF_SUPPORTED({ f.Call(17); }, "abort: no reason");
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}
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TEST_F(MacroAssemblerTest, ReverseBitsU64) {
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struct {
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uint64_t expected;
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uint64_t input;
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} values[] = {
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{0x0000000000000000, 0x0000000000000000},
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{0xffffffffffffffff, 0xffffffffffffffff},
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{0x8000000000000000, 0x0000000000000001},
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{0x0000000000000001, 0x8000000000000000},
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{0x800066aa22cc4488, 0x1122334455660001},
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{0x1122334455660001, 0x800066aa22cc4488},
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{0xffffffff00000000, 0x00000000ffffffff},
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{0x00000000ffffffff, 0xffffffff00000000},
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{0xff01020304050607, 0xe060a020c04080ff},
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{0xe060a020c04080ff, 0xff01020304050607},
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};
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auto buffer = AllocateAssemblerBuffer();
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MacroAssembler masm(isolate(), AssemblerOptions{}, CodeObjectRequired::kNo,
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buffer->CreateView());
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__ set_root_array_available(false);
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__ set_abort_hard(true);
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__ Push(r4, r5);
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__ ReverseBitsU64(r3, r3, r4, r5);
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__ Pop(r4, r5);
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__ Ret();
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CodeDesc desc;
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masm.GetCode(isolate(), &desc);
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buffer->MakeExecutable();
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auto f =
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GeneratedCode<uint64_t, uint64_t>::FromBuffer(isolate(), buffer->start());
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for (unsigned int i = 0; i < (sizeof(values) / sizeof(values[0])); i++) {
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CHECK_EQ(values[i].expected, f.Call(values[i].input));
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}
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}
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TEST_F(MacroAssemblerTest, ReverseBitsU32) {
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struct {
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uint64_t expected;
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uint64_t input;
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} values[] = {
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{0x00000000, 0x00000000}, {0xffffffff, 0xffffffff},
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{0x00000001, 0x80000000}, {0x80000000, 0x00000001},
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{0x22334455, 0xaa22cc44}, {0xaa22cc44, 0x22334455},
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};
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auto buffer = AllocateAssemblerBuffer();
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MacroAssembler masm(isolate(), AssemblerOptions{}, CodeObjectRequired::kNo,
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buffer->CreateView());
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__ set_root_array_available(false);
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__ set_abort_hard(true);
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__ Push(r4, r5);
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__ ReverseBitsU32(r3, r3, r4, r5);
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__ Pop(r4, r5);
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__ Ret();
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CodeDesc desc;
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masm.GetCode(isolate(), &desc);
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buffer->MakeExecutable();
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auto f =
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GeneratedCode<uint64_t, uint64_t>::FromBuffer(isolate(), buffer->start());
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for (unsigned int i = 0; i < (sizeof(values) / sizeof(values[0])); i++) {
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CHECK_EQ(values[i].expected, f.Call(values[i].input));
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}
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}
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#undef __
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} // namespace internal
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} // namespace v8
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