diff options
Diffstat (limited to 'include/llvm/CodeGen')
| -rw-r--r-- | include/llvm/CodeGen/Passes.h | 5 | ||||
| -rw-r--r-- | include/llvm/CodeGen/TwoAddressInstructionPass.h | 51 |
2 files changed, 5 insertions, 51 deletions
diff --git a/include/llvm/CodeGen/Passes.h b/include/llvm/CodeGen/Passes.h index 8868de1..3aee4ce 100644 --- a/include/llvm/CodeGen/Passes.h +++ b/include/llvm/CodeGen/Passes.h @@ -28,6 +28,11 @@ class TargetMachine; // extern const PassInfo *PHIEliminationID; +// TwoAddressInstruction pass - This pass reduces two-address +// instructions to use two operands. This destroys SSA information but +// it is desired by register allocators. +extern const PassInfo *TwoAddressInstructionPassID; + /// Creates a register allocator as the user specified on the command /// line. FunctionPass *createRegisterAllocator(); diff --git a/include/llvm/CodeGen/TwoAddressInstructionPass.h b/include/llvm/CodeGen/TwoAddressInstructionPass.h deleted file mode 100644 index b268154..0000000 --- a/include/llvm/CodeGen/TwoAddressInstructionPass.h +++ /dev/null @@ -1,51 +0,0 @@ -//===-- llvm/CodeGen/TwoAddressInstructionPass.h - Two-Address instruction pass -*- C++ -*-===// -// -// The LLVM Compiler Infrastructure -// -// This file was developed by the LLVM research group and is distributed under -// the University of Illinois Open Source License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// -// -// This file implements the Two-Address instruction rewriter pass. In -// some architectures instructions have a combined source/destination -// operand. In those cases the instruction cannot have three operands -// as the destination is implicit (for example ADD %EAX, %EBX on the -// IA-32). After code generation this restrictions are not handled and -// instructions may have three operands. This pass remedies this and -// reduces all two-address instructions to two operands. -// -//===----------------------------------------------------------------------===// - -#ifndef LLVM_CODEGEN_TWOADDRESSINSTRUCTIONPASS_H -#define LLVM_CODEGEN_TWOADDRESSINSTRUCTIONPASS_H - -#include "llvm/CodeGen/MachineFunctionPass.h" -#include "llvm/CodeGen/MachineBasicBlock.h" -#include <iostream> -#include <map> - -namespace llvm { - - class LiveVariables; - class MRegisterInfo; - - class TwoAddressInstructionPass : public MachineFunctionPass - { - private: - MachineFunction* mf_; - const TargetMachine* tm_; - const MRegisterInfo* mri_; - LiveVariables* lv_; - - public: - virtual void getAnalysisUsage(AnalysisUsage &AU) const; - - private: - /// runOnMachineFunction - pass entry point - bool runOnMachineFunction(MachineFunction&); - }; - -} // End llvm namespace - -#endif |