diff options
Diffstat (limited to 'lib/Target/ARM/ARMInstrInfo.cpp')
-rw-r--r-- | lib/Target/ARM/ARMInstrInfo.cpp | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/lib/Target/ARM/ARMInstrInfo.cpp b/lib/Target/ARM/ARMInstrInfo.cpp new file mode 100644 index 0000000000..2ae23c7873 --- /dev/null +++ b/lib/Target/ARM/ARMInstrInfo.cpp @@ -0,0 +1,58 @@ +//===- ARMInstrInfo.cpp - ARM Instruction Information -----------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file was developed by the "Instituto Nokia de Tecnologia" and +// is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file contains the ARM implementation of the TargetInstrInfo class. +// +//===----------------------------------------------------------------------===// + +#include "ARMInstrInfo.h" +#include "ARM.h" +#include "llvm/CodeGen/MachineInstrBuilder.h" +#include "ARMGenInstrInfo.inc" +using namespace llvm; + +ARMInstrInfo::ARMInstrInfo() + : TargetInstrInfo(ARMInsts, sizeof(ARMInsts)/sizeof(ARMInsts[0])) { +} + +/// Return true if the instruction is a register to register move and +/// leave the source and dest operands in the passed parameters. +/// +bool ARMInstrInfo::isMoveInstr(const MachineInstr &MI, + unsigned &SrcReg, unsigned &DstReg) const { + // We look for 3 kinds of patterns here: + // or with G0 or 0 + // add with G0 or 0 + // fmovs or FpMOVD (pseudo double move). + assert(0 && "not implemented"); + return false; +} + +/// isLoadFromStackSlot - If the specified machine instruction is a direct +/// load from a stack slot, return the virtual or physical register number of +/// the destination along with the FrameIndex of the loaded stack slot. If +/// not, return 0. This predicate must return 0 if the instruction has +/// any side effects other than loading from the stack slot. +unsigned ARMInstrInfo::isLoadFromStackSlot(MachineInstr *MI, + int &FrameIndex) const { + assert(0 && "not implemented"); + return 0; +} + +/// isStoreToStackSlot - If the specified machine instruction is a direct +/// store to a stack slot, return the virtual or physical register number of +/// the source reg along with the FrameIndex of the loaded stack slot. If +/// not, return 0. This predicate must return 0 if the instruction has +/// any side effects other than storing to the stack slot. +unsigned ARMInstrInfo::isStoreToStackSlot(MachineInstr *MI, + int &FrameIndex) const { + assert(0 && "not implemented"); + return 0; +} |