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ae73dc1448
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55779 91177308-0d34-0410-b5e6-96231b3b80d8
52 lines
1.7 KiB
C++
52 lines
1.7 KiB
C++
//===-- MachineFunctionPass.h - Pass for MachineFunctions --------*-C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines the MachineFunctionPass class. MachineFunctionPass's are
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// just FunctionPass's, except they operate on machine code as part of a code
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// generator. Because they operate on machine code, not the LLVM
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// representation, MachineFunctionPass's are not allowed to modify the LLVM
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// representation. Due to this limitation, the MachineFunctionPass class takes
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// care of declaring that no LLVM passes are invalidated.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CODEGEN_MACHINE_FUNCTION_PASS_H
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#define LLVM_CODEGEN_MACHINE_FUNCTION_PASS_H
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#include "llvm/Pass.h"
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#include "llvm/CodeGen/MachineFunction.h"
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namespace llvm {
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struct MachineFunctionPass : public FunctionPass {
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explicit MachineFunctionPass(intptr_t ID) : FunctionPass(ID) {}
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explicit MachineFunctionPass(void *ID) : FunctionPass(ID) {}
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protected:
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/// runOnMachineFunction - This method must be overloaded to perform the
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/// desired machine code transformation or analysis.
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///
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virtual bool runOnMachineFunction(MachineFunction &MF) = 0;
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public:
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// FIXME: This pass should declare that the pass does not invalidate any LLVM
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// passes.
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bool runOnFunction(Function &F) {
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return runOnMachineFunction(MachineFunction::get(&F));
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}
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private:
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virtual void virtfn(); // out of line virtual fn to give class a home.
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};
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} // End llvm namespace
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#endif
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