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https://github.com/dolphin-emu/dolphin.git
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a14c88ba67
Yellow squiggly lines begone! Done automatically on .cpp files through `run-clang-tidy`, with manual corrections to the mistakes. If an import is directly used, but is technically unnecessary since it's recursively imported by something else, it is *not* removed. The tool doesn't touch .h files, so I did some of them by hand while fixing errors due to old recursive imports. Not everything is removed, but the cleanup should be substantial enough. Because this done on Linux, code that isn't used on it is mostly untouched. (Hopefully no open PR is depending on these imports...)
80 lines
2.1 KiB
C++
80 lines
2.1 KiB
C++
// Copyright 2025 Dolphin Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#include <bit>
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#include "Common/CommonTypes.h"
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#include "Common/FloatUtils.h"
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#include "Common/ScopeGuard.h"
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#include "Common/x64ABI.h"
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#include "Core/Core.h"
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#include "Core/PowerPC/Jit64/Jit.h"
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#include "Core/PowerPC/Jit64Common/Jit64AsmCommon.h"
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#include "Core/PowerPC/Jit64Common/Jit64PowerPCState.h"
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#include "Core/System.h"
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#include "../TestValues.h"
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#include <gtest/gtest.h>
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namespace
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{
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class TestFres : public CommonAsmRoutines
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{
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public:
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explicit TestFres(Core::System& system) : CommonAsmRoutines(jit), jit(system)
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{
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using namespace Gen;
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AllocCodeSpace(4096);
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m_const_pool.Init(AllocChildCodeSpace(1024), 1024);
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const auto raw_fres = reinterpret_cast<double (*)(double)>(AlignCode4());
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GenFres();
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wrapped_fres = reinterpret_cast<u64 (*)(u64, const UReg_FPSCR&)>(AlignCode4());
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ABI_PushRegistersAndAdjustStack(ABI_ALL_CALLEE_SAVED, 8, 16);
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// We know that the only part of PowerPCState that the fres routine accesses is the fpscr.
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// We manufacture a PPCSTATE pointer so it reads from our provided fpscr instead.
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LEA(64, RPPCSTATE, MDisp(ABI_PARAM2, -PPCSTATE_OFF(fpscr)));
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// Call
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MOVQ_xmm(XMM0, R(ABI_PARAM1));
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ABI_CallFunction(raw_fres);
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MOVQ_xmm(R(ABI_RETURN), XMM0);
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ABI_PopRegistersAndAdjustStack(ABI_ALL_CALLEE_SAVED, 8, 16);
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RET();
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}
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u64 (*wrapped_fres)(u64, const UReg_FPSCR&);
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Jit64 jit;
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};
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} // namespace
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TEST(Jit64, Fres)
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{
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Core::DeclareAsCPUThread();
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Common::ScopeGuard cpu_thread_guard([] { Core::UndeclareAsCPUThread(); });
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TestFres test(Core::System::GetInstance());
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// FPSCR with NI set
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const UReg_FPSCR fpscr = UReg_FPSCR(0x00000004);
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for (const u64 ivalue : double_test_values)
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{
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const double dvalue = std::bit_cast<double>(ivalue);
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const u64 expected = std::bit_cast<u64>(Common::ApproximateReciprocal(dvalue));
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const u64 actual = test.wrapped_fres(ivalue, fpscr);
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if (expected != actual)
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fmt::print("{:016x} -> {:016x} == {:016x}\n", ivalue, actual, expected);
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EXPECT_EQ(expected, actual);
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}
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}
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