54f37133b7
Mostly mechanical changes in preparation of extracting the Flang-RT "subproject" in #110217. This PR intends to only move pre-existing files to the new folder structure, with no behavioral change. Common files (headers, testing, cmake) shared by Flang-RT and Flang remain in `flang/`. Some cosmetic changes and files paths were necessary: * Relative paths to the new path for the source files and `add_subdirectory`. * Add the new location's include directory to `include_directories` * The unittest/Evaluate directory has unitests for flang-rt and Flang. A new `CMakeLists.txt` was introduced for the flang-rt tests. * Change the `#include` paths relative to the include directive * clang-format on the `#include` directives * Since the paths are part if the copyright header and include guards, a script was used to canonicalize those * `test/Runtime` and runtime tests in `test/Driver` are moved, but the lit.cfg.py mechanism to execute the will only be added in #110217.
103 lines
3.4 KiB
C++
103 lines
3.4 KiB
C++
//===-- lib/runtime/ISO_Fortran_util.h --------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef FLANG_RT_RUNTIME_ISO_FORTRAN_UTIL_H_
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#define FLANG_RT_RUNTIME_ISO_FORTRAN_UTIL_H_
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// Internal utils for establishing CFI_cdesc_t descriptors.
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#include "flang-rt/runtime/descriptor.h"
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#include "flang-rt/runtime/terminator.h"
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#include "flang-rt/runtime/type-code.h"
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#include "flang/Common/ISO_Fortran_binding_wrapper.h"
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#include <cstdlib>
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namespace Fortran::ISO {
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static inline constexpr RT_API_ATTRS bool IsCharacterType(CFI_type_t ty) {
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return ty == CFI_type_char || ty == CFI_type_char16_t ||
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ty == CFI_type_char32_t;
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}
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static inline constexpr RT_API_ATTRS bool IsAssumedSize(const CFI_cdesc_t *dv) {
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return dv->rank > 0 && dv->dim[dv->rank - 1].extent == -1;
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}
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static inline RT_API_ATTRS std::size_t MinElemLen(CFI_type_t type) {
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auto typeParams{Fortran::runtime::TypeCode{type}.GetCategoryAndKind()};
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if (!typeParams) {
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Fortran::runtime::Terminator terminator{__FILE__, __LINE__};
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terminator.Crash(
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"not yet implemented: CFI_type_t=%d", static_cast<int>(type));
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}
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return Fortran::runtime::Descriptor::BytesFor(
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typeParams->first, typeParams->second);
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}
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static inline RT_API_ATTRS int VerifyEstablishParameters(
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CFI_cdesc_t *descriptor, void *base_addr, CFI_attribute_t attribute,
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CFI_type_t type, std::size_t elem_len, CFI_rank_t rank,
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const CFI_index_t extents[], bool external) {
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if (attribute != CFI_attribute_other && attribute != CFI_attribute_pointer &&
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attribute != CFI_attribute_allocatable) {
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return CFI_INVALID_ATTRIBUTE;
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}
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if (rank > CFI_MAX_RANK) {
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return CFI_INVALID_RANK;
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}
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if (base_addr && attribute == CFI_attribute_allocatable) {
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return CFI_ERROR_BASE_ADDR_NOT_NULL;
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}
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if (rank > 0 && base_addr && !extents) {
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return CFI_INVALID_EXTENT;
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}
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if (type < CFI_type_signed_char || type > CFI_TYPE_LAST) {
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return CFI_INVALID_TYPE;
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}
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if (!descriptor) {
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return CFI_INVALID_DESCRIPTOR;
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}
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if (external) {
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if (type == CFI_type_struct || type == CFI_type_other ||
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IsCharacterType(type)) {
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if (elem_len <= 0) {
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return CFI_INVALID_ELEM_LEN;
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}
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}
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} else {
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// We do not expect CFI_type_other for internal invocations.
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if (type == CFI_type_other) {
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return CFI_INVALID_TYPE;
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}
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}
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return CFI_SUCCESS;
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}
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static inline RT_API_ATTRS void EstablishDescriptor(CFI_cdesc_t *descriptor,
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void *base_addr, CFI_attribute_t attribute, CFI_type_t type,
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std::size_t elem_len, CFI_rank_t rank, const CFI_index_t extents[]) {
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descriptor->base_addr = base_addr;
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descriptor->elem_len = elem_len;
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descriptor->version = CFI_VERSION;
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descriptor->rank = rank;
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descriptor->type = type;
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descriptor->attribute = attribute;
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descriptor->extra = 0;
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std::size_t byteSize{elem_len};
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constexpr std::size_t lower_bound{0};
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if (base_addr) {
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for (std::size_t j{0}; j < rank; ++j) {
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descriptor->dim[j].lower_bound = lower_bound;
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descriptor->dim[j].extent = extents[j];
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descriptor->dim[j].sm = byteSize;
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byteSize *= extents[j];
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}
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}
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}
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} // namespace Fortran::ISO
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#endif // FLANG_RT_RUNTIME_ISO_FORTRAN_UTIL_H_
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