68 lines
2.3 KiB
C
68 lines
2.3 KiB
C
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//===- llvm/CodeGen/GlobalISel/InlineAsmLowering.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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///
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/// \file
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/// This file describes how to lower LLVM inline asm to machine code INLINEASM.
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///
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CODEGEN_GLOBALISEL_INLINEASMLOWERING_H
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#define LLVM_CODEGEN_GLOBALISEL_INLINEASMLOWERING_H
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#include "llvm/ADT/ArrayRef.h"
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#include <functional>
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namespace llvm {
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class CallBase;
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class MachineIRBuilder;
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class MachineOperand;
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class Register;
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class TargetLowering;
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class Value;
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class InlineAsmLowering {
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const TargetLowering *TLI;
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virtual void anchor();
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public:
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/// Lower the given inline asm call instruction
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/// \p GetOrCreateVRegs is a callback to materialize a register for the
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/// input and output operands of the inline asm
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/// \return True if the lowering succeeds, false otherwise.
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bool lowerInlineAsm(MachineIRBuilder &MIRBuilder, const CallBase &CB,
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std::function<ArrayRef<Register>(const Value &Val)>
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GetOrCreateVRegs) const;
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/// Lower the specified operand into the Ops vector.
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/// \p Val is the IR input value to be lowered
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/// \p Constraint is the user supplied constraint string
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/// \p Ops is the vector to be filled with the lowered operands
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/// \return True if the lowering succeeds, false otherwise.
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virtual bool lowerAsmOperandForConstraint(Value *Val, StringRef Constraint,
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std::vector<MachineOperand> &Ops,
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MachineIRBuilder &MIRBuilder) const;
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protected:
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/// Getter for generic TargetLowering class.
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const TargetLowering *getTLI() const { return TLI; }
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/// Getter for target specific TargetLowering class.
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template <class XXXTargetLowering> const XXXTargetLowering *getTLI() const {
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return static_cast<const XXXTargetLowering *>(TLI);
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}
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public:
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InlineAsmLowering(const TargetLowering *TLI) : TLI(TLI) {}
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virtual ~InlineAsmLowering() = default;
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};
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} // end namespace llvm
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#endif // LLVM_CODEGEN_GLOBALISEL_INLINEASMLOWERING_H
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