33683bd087
This patch is the eighth patch in a series adding RISC-V to gem5, and third of the bonus patches to the original series of five. It adds some regression tests to RISC-V. Regression tests included: - se/00.hello - se/02.insttest (split into several binaries which are not included due to large size) The tests added to 00.insttest will need to be build manually; to facilitate this, a Makefile is included. The required toolchain and compiler (riscv64-unknown-elf-gcc) can be built from the riscv-tools GitHub repository at https://github.com/riscv/riscv-tools. Note that because EBREAK only makes sense when gdb is running or while in FS mode, it is not included in the linux-rv64i insttest. ERET is not included because it does not make sense in SE mode and, in fact, causes a panic by design. Note also that not every system call is tested in linux-rv64i; of the ones defined in linux/process.hh, some have been given numbers but not definitions for the toolchain, or are merely stubs that always return 0. Of the ones that do work properly, only a subset are tested due to similar functionality. Signed-off by: Alec Roelke Signed-off by: Jason Lowe-Power <jason@lowepower.com>
144 lines
5.6 KiB
C++
144 lines
5.6 KiB
C++
/*
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* Copyright (c) 2016 The University of Virginia
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Authors: Alec Roelke
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*/
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#include <cstdint>
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#include <limits>
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#include "insttest.h"
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#include "rv64m.h"
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int main()
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{
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using namespace std;
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using namespace insttest;
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// MUL
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expect<int64_t>(39285, []{return M::mul(873, 45);}, "mul");
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expect<int64_t>(0, []{return M::mul(0x4000000000000000LL, 4);},
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"mul, overflow");
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// MULH
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expect<int64_t>(1, []{return M::mulh(0x4000000000000000LL, 4);}, "mulh");
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expect<int64_t>(-1, []{return M::mulh(numeric_limits<int64_t>::min(), 2);},
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"mulh, negative");
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expect<int64_t>(0, []{return M::mulh(-1, -1);}, "mulh, all bits set");
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// MULHSU
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expect<int64_t>(-1, []{return M::mulhsu(-1, -1);}, "mulhsu, all bits set");
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expect<int64_t>(-1,
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[]{return M::mulhsu(numeric_limits<int64_t>::min(), 2);},\
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"mulhsu");
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// MULHU
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expect<uint64_t>(1, []{return M::mulhu(0x8000000000000000ULL, 2);},
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"mulhu");
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expect<uint64_t>(0xFFFFFFFFFFFFFFFEULL, []{return M::mulhu(-1, -1);},
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"mulhu, all bits set");
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// DIV
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expect<int64_t>(-7, []{return M::div(-59, 8);}, "div");
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expect<int64_t>(-1, []{return M::div(255, 0);}, "div/0");
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expect<int64_t>(numeric_limits<int64_t>::min(),
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[]{return M::div(numeric_limits<int64_t>::min(), -1);},
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"div, overflow");
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// DIVU
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expect<uint64_t>(2305843009213693944LL, []{return M::divu(-59, 8);},
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"divu");
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expect<uint64_t>(numeric_limits<uint64_t>::max(),
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[]{return M::divu(255, 0);}, "divu/0");
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expect<uint64_t>(0,
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[]{return M::divu(numeric_limits<uint64_t>::min(), -1);},
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"divu, \"overflow\"");
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// REM
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expect<int64_t>(-3, []{return M::rem(-59, 8);}, "rem");
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expect<int64_t>(255, []{return M::rem(255, 0);}, "rem/0");
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expect<int64_t>(0, []{return M::rem(numeric_limits<int64_t>::min(), -1);},
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"rem, overflow");
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// REMU
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expect<uint64_t>(5, []{return M::remu(-59, 8);}, "remu");
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expect<uint64_t>(255, []{return M::remu(255, 0);}, "remu/0");
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expect<uint64_t>(0x8000000000000000ULL,
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[]{return M::remu(0x8000000000000000ULL, -1);},
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"remu, \"overflow\"");
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// MULW
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expect<int64_t>(-100,
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[]{return M::mulw(0x7FFFFFFF00000005LL, 0x80000000FFFFFFECLL);},
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"mulw, truncate");
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expect<int64_t>(0, []{return M::mulw(0x40000000, 4);}, "mulw, overflow");
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// DIVW
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expect<int64_t>(-7,
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[]{return M::divw(0x7FFFFFFFFFFFFFC5LL, 0xFFFFFFFF00000008LL);},
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"divw, truncate");
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expect<int64_t>(-1, []{return M::divw(65535, 0);}, "divw/0");
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expect<int64_t>(numeric_limits<int32_t>::min(),
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[]{return M::divw(numeric_limits<int32_t>::min(), -1);},
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"divw, overflow");
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// DIVUW
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expect<int64_t>(536870904,
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[]{return M::divuw(0x7FFFFFFFFFFFFFC5LL, 0xFFFFFFFF00000008LL);},
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"divuw, truncate");
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expect<int64_t>(numeric_limits<uint64_t>::max(),
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[]{return M::divuw(65535, 0);}, "divuw/0");
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expect<int64_t>(0,
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[]{return M::divuw(numeric_limits<int32_t>::min(), -1);},
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"divuw, \"overflow\"");
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expect<int64_t>(-1,
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[]{return M::divuw(numeric_limits<uint32_t>::max(), 1);},
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"divuw, sign extend");
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// REMW
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expect<int64_t>(-3,
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[]{return M::remw(0x7FFFFFFFFFFFFFC5LL, 0xFFFFFFFF00000008LL);},
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"remw, truncate");
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expect<int64_t>(65535, []{return M::remw(65535, 0);}, "remw/0");
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expect<int64_t>(0, []{return M::remw(numeric_limits<int32_t>::min(), -1);},
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"remw, overflow");
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// REMUW
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expect<int64_t>(5,
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[]{return M::remuw(0x7FFFFFFFFFFFFFC5LL, 0xFFFFFFFF00000008LL);},
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"remuw, truncate");
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expect<int64_t>(65535, []{return M::remuw(65535, 0);}, "remuw/0");
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expect<int64_t>(numeric_limits<int32_t>::min(),
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[]{return M::remuw(numeric_limits<int32_t>::min(), -1);},
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"remuw, \"overflow\"");
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expect<int64_t>(0xFFFFFFFF80000000,
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[]{return M::remuw(0x80000000, 0xFFFFFFFF);},
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"remuw, sign extend");
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return 0;
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}
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