| //===- Types.cpp - Helper for the selection of C++ data types. ------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "Types.h" |
| |
| // For LLVM_ATTRIBUTE_UNUSED |
| #include "llvm/Support/Compiler.h" |
| |
| #include <cassert> |
| |
| using namespace llvm; |
| |
| const char *llvm::getMinimalTypeForRange(uint64_t Range, unsigned MaxSize LLVM_ATTRIBUTE_UNUSED) { |
| // TODO: The original callers only used 32 and 64 so these are the only |
| // values permitted. Rather than widen the supported values we should |
| // allow 64 for the callers that currently use 32 and remove the |
| // argument altogether. |
| assert((MaxSize == 32 || MaxSize == 64) && "Unexpected size"); |
| assert(MaxSize <= 64 && "Unexpected size"); |
| assert(((MaxSize > 32) ? Range <= 0xFFFFFFFFFFFFFFFFULL |
| : Range <= 0xFFFFFFFFULL) && |
| "Enum too large"); |
| |
| if (Range > 0xFFFFFFFFULL) |
| return "uint64_t"; |
| if (Range > 0xFFFF) |
| return "uint32_t"; |
| if (Range > 0xFF) |
| return "uint16_t"; |
| return "uint8_t"; |
| } |