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30 lines
1009 B
30 lines
1009 B
//===- AArch64GlobalISelUtils.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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/// \file APIs for AArch64-specific helper functions used in the GlobalISel
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/// pipeline.
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_AARCH64_GISEL_AARCH64GLOBALISELUTILS_H
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#define LLVM_LIB_TARGET_AARCH64_GISEL_AARCH64GLOBALISELUTILS_H
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#include <cstdint>
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namespace llvm {
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namespace AArch64GISelUtils {
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/// \returns true if \p C is a legal immediate operand for an arithmetic
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/// instruction.
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constexpr bool isLegalArithImmed(const uint64_t C) {
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return (C >> 12 == 0) || ((C & 0xFFFULL) == 0 && C >> 24 == 0);
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}
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} // namespace AArch64GISelUtils
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} // namespace llvm
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#endif
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