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Signed-off-by: swurl <swurl@swurl.xyz>
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swurl 2025-05-31 02:33:02 -04:00
parent c0cceff365
commit 6c655321e6
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4081 changed files with 1185566 additions and 45 deletions
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externals/oaknut/tests/vector_code_gen.cpp vendored Normal file
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// SPDX-FileCopyrightText: Copyright (c) 2023 merryhime <https://mary.rs>
// SPDX-License-Identifier: MIT
#include <cstdint>
#include <cstdio>
#include <cstring>
#include <limits>
#include <vector>
#include <catch2/catch_test_macros.hpp>
#include "architecture.hpp"
#ifdef ON_ARM64
# include "oaknut/code_block.hpp"
# include "oaknut/oaknut.hpp"
# include "rand_int.hpp"
using namespace oaknut;
using namespace oaknut::util;
TEST_CASE("Basic Test (VectorCodeGenerator)")
{
std::vector<std::uint32_t> vec;
VectorCodeGenerator code{vec};
code.MOV(W0, 42);
code.RET();
CodeBlock mem{4096};
mem.unprotect();
std::memcpy(mem.ptr(), vec.data(), vec.size() * sizeof(std::uint32_t));
mem.protect();
mem.invalidate_all();
int result = ((int (*)())mem.ptr())();
REQUIRE(result == 42);
}
TEST_CASE("Fibonacci (VectorCodeGenerator)")
{
std::vector<std::uint32_t> vec;
VectorCodeGenerator code{vec};
Label start, end, zero, recurse;
code.l(start);
code.STP(X29, X30, SP, PRE_INDEXED, -32);
code.STP(X20, X19, SP, 16);
code.MOV(X29, SP);
code.MOV(W19, W0);
code.SUBS(W0, W0, 1);
code.B(LT, zero);
code.B(NE, recurse);
code.MOV(W0, 1);
code.B(end);
code.l(zero);
code.MOV(W0, WZR);
code.B(end);
code.l(recurse);
code.BL(start);
code.MOV(W20, W0);
code.SUB(W0, W19, 2);
code.BL(start);
code.ADD(W0, W0, W20);
code.l(end);
code.LDP(X20, X19, SP, 16);
code.LDP(X29, X30, SP, POST_INDEXED, 32);
code.RET();
CodeBlock mem{4096};
mem.unprotect();
std::memcpy(mem.ptr(), vec.data(), vec.size() * sizeof(std::uint32_t));
mem.protect();
mem.invalidate_all();
auto fib = (int (*)(int))mem.ptr();
REQUIRE(fib(0) == 0);
REQUIRE(fib(1) == 1);
REQUIRE(fib(5) == 5);
REQUIRE(fib(9) == 34);
}
#endif