a37f3673f8
9d091109d oaknut: 2.0.1 7f3e9f600 oaknut: Support single argument constructor for CodeGenerator again git-subtree-dir: externals/oaknut git-subtree-split: 9d091109deb445bc6e9289c6195a282b7c993d49
85 lines
1.8 KiB
C++
85 lines
1.8 KiB
C++
// SPDX-FileCopyrightText: Copyright (c) 2023 merryhime <https://mary.rs>
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// SPDX-License-Identifier: MIT
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#include <cstdint>
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#include <cstdio>
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#include <cstring>
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#include <limits>
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#include <vector>
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#include <catch2/catch_test_macros.hpp>
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#include "oaknut/code_block.hpp"
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#include "oaknut/oaknut.hpp"
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#include "rand_int.hpp"
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using namespace oaknut;
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using namespace oaknut::util;
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TEST_CASE("Basic Test (VectorCodeGenerator)")
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{
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std::vector<std::uint32_t> vec;
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VectorCodeGenerator code{vec};
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code.MOV(W0, 42);
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code.RET();
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CodeBlock mem{4096};
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mem.unprotect();
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std::memcpy(mem.ptr(), vec.data(), vec.size() * sizeof(std::uint32_t));
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mem.protect();
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mem.invalidate_all();
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int result = ((int (*)())mem.ptr())();
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REQUIRE(result == 42);
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}
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TEST_CASE("Fibonacci (VectorCodeGenerator)")
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{
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std::vector<std::uint32_t> vec;
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VectorCodeGenerator code{vec};
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Label start, end, zero, recurse;
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code.l(start);
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code.STP(X29, X30, SP, PRE_INDEXED, -32);
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code.STP(X20, X19, SP, 16);
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code.MOV(X29, SP);
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code.MOV(W19, W0);
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code.SUBS(W0, W0, 1);
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code.B(LT, zero);
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code.B(NE, recurse);
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code.MOV(W0, 1);
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code.B(end);
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code.l(zero);
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code.MOV(W0, WZR);
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code.B(end);
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code.l(recurse);
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code.BL(start);
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code.MOV(W20, W0);
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code.SUB(W0, W19, 2);
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code.BL(start);
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code.ADD(W0, W0, W20);
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code.l(end);
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code.LDP(X20, X19, SP, 16);
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code.LDP(X29, X30, SP, POST_INDEXED, 32);
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code.RET();
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CodeBlock mem{4096};
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mem.unprotect();
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std::memcpy(mem.ptr(), vec.data(), vec.size() * sizeof(std::uint32_t));
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mem.protect();
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mem.invalidate_all();
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auto fib = (int (*)(int))mem.ptr();
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REQUIRE(fib(0) == 0);
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REQUIRE(fib(1) == 1);
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REQUIRE(fib(5) == 5);
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REQUIRE(fib(9) == 34);
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}
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