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Remove built_function

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With today's branch prediction techniques, it's hardly useful.
This commit is contained in:
Nekotekina 2022-01-23 15:20:07 +03:00
parent d2897bc6a0
commit 12c83b340d
11 changed files with 17 additions and 112 deletions
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94
Utilities/JIT.h
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@ -263,100 +263,6 @@ inline FT build_function_asm(std::string_view name, F&& builder)
return reinterpret_cast<FT>(uptr(result));
}
#if !defined(ARCH_X64) || defined(__APPLE__)
template <typename FT, usz = 4096>
class built_function
{
FT m_func;
public:
built_function(const built_function&) = delete;
built_function& operator=(const built_function&) = delete;
template <typename F>
built_function(std::string_view name, F&& builder,
u32 line = __builtin_LINE(),
u32 col = __builtin_COLUMN(),
const char* file = __builtin_FILE(),
const char* func = __builtin_FUNCTION())
: m_func(ensure(build_function_asm<FT>(name, std::forward<F>(builder)), const_str(), line, col, file, func))
{
}
operator FT() const noexcept
{
return m_func;
}
template <typename... Args>
auto operator()(Args&&... args) const noexcept
{
return m_func(std::forward<Args>(args)...);
}
};
#else
template <typename FT, usz Size = 4096>
class built_function
{
alignas(4096) uchar m_data[Size];
public:
built_function(const built_function&) = delete;
built_function& operator=(const built_function&) = delete;
template <typename F>
built_function(std::string_view name, F&& builder)
{
using namespace asmjit;
inline_runtime rt(m_data, Size);
CodeHolder code;
code.init(rt.environment());
#if defined(ARCH_X64)
native_args args;
#ifdef _WIN32
args[0] = x86::rcx;
args[1] = x86::rdx;
args[2] = x86::r8;
args[3] = x86::r9;
#else
args[0] = x86::rdi;
args[1] = x86::rsi;
args[2] = x86::rdx;
args[3] = x86::rcx;
#endif
#elif defined(ARCH_ARM64)
native_args args;
args[0] = a64::x0;
args[1] = a64::x1;
args[2] = a64::x2;
args[3] = a64::x3;
#endif
native_asm compiler(&code);
compiler.addEncodingOptions(EncodingOptions::kOptimizedAlign);
builder(compiler, args);
rt.dump_name = name;
jit_announce(rt._add(&code), code.codeSize(), name);
}
operator FT() const noexcept
{
return FT(+m_data);
}
template <typename... Args>
auto operator()(Args&&... args) const noexcept
{
return FT(+m_data)(std::forward<Args>(args)...);
}
};
#endif
#ifdef LLVM_AVAILABLE
namespace llvm