abi_win64.cpp

//===-- abi_win64.cpp - Windows x86_64 ABI description ----------*- C++ -*-===//
//
//                         LDC – the LLVM D compiler
//
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//===----------------------------------------------------------------------===//
//
// The ABI implementation used for 64 bit x86 (i.e. x86_64/AMD64/x64) targets
// on Windows.
//
//===----------------------------------------------------------------------===//

#include "abi_x86_vec.h"

struct AbiState {
};

const AbiState default_abi_state = {};

bool use_sret(AbiState *state, jl_datatype_t *dt)
{
    size_t size = jl_datatype_size(dt);
    if (size <= 8 || is_native_simd_type(dt))
        return false;
    return true;
}

void needPassByRef(AbiState *state, jl_datatype_t *dt, bool *byRef, bool *inReg)
{
    size_t size = jl_datatype_size(dt);
    if (size > 8)
        *byRef = true;
}

Type *preferred_llvm_type(jl_datatype_t *dt, bool isret)
{
    size_t size = jl_datatype_size(dt);
    if (size > 0 && size <= 8 && !jl_is_bitstype(dt))
        return Type::getIntNTy(jl_LLVMContext, size*8);
    return NULL;
}

// Windows needs all types pased byRef to be passed in caller allocated memory
bool need_private_copy(jl_value_t *ty, bool byRef)
{
    return byRef;
}