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Initial check in of MachineFunctionPass.h

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5162 91177308-0d34-0410-b5e6-96231b3b80d8
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Chris Lattner 2002-12-28 20:03:01 +00:00
parent a65c508fb4
commit 2a4a095e57
1 changed files with 33 additions and 0 deletions
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include/llvm/CodeGen/MachineFunctionPass.h Normal file
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//===-- MachineFunctionPass.h - Pass for MachineFunctions --------*-C++ -*-===//
//
// This file defines the MachineFunctionPass class. MachineFunctionPass's are
// just FunctionPass's, except they operate on machine code as part of a code
// generator. Because they operate on machine code, not the LLVM
// representation, MachineFunctionPass's are not allowed to modify the LLVM
// representation. Due to this limitation, the MachineFunctionPass class takes
// care of declaring that no LLVM passes are invalidated.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CODEGEN_MACHINE_FUNCTION_PASS_H
#define LLVM_CODEGEN_MACHINE_FUNCTION_PASS_H
#include "llvm/Pass.h"
#include "llvm/CodeGen/MachineFunction.h"
struct MachineFunctionPass : public FunctionPass {
/// runOnMachineFunction - This method must be overloaded to perform the
/// desired machine code transformation or analysis.
///
virtual bool runOnMachineFunction(MachineFunction &MF) = 0;
// FIXME: This pass should declare that the pass does not invalidate any LLVM
// passes.
virtual bool runOnFunction(Function &F) {
return runOnMachineFunction(MachineFunction::get(&F));
}
};
#endif