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-rw-r--r--contrib/llvm/lib/Target/Mips/MipsISelDAGToDAG.cpp249
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diff --git a/contrib/llvm/lib/Target/Mips/MipsISelDAGToDAG.cpp b/contrib/llvm/lib/Target/Mips/MipsISelDAGToDAG.cpp
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index 0000000..0650239
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+++ b/contrib/llvm/lib/Target/Mips/MipsISelDAGToDAG.cpp
@@ -0,0 +1,249 @@
+//===-- MipsISelDAGToDAG.cpp - A Dag to Dag Inst Selector for Mips --------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines an instruction selector for the MIPS target.
+//
+//===----------------------------------------------------------------------===//
+
+#include "MipsISelDAGToDAG.h"
+#include "MCTargetDesc/MipsBaseInfo.h"
+#include "Mips.h"
+#include "Mips16ISelDAGToDAG.h"
+#include "MipsMachineFunction.h"
+#include "MipsRegisterInfo.h"
+#include "MipsSEISelDAGToDAG.h"
+#include "llvm/CodeGen/MachineConstantPool.h"
+#include "llvm/CodeGen/MachineFrameInfo.h"
+#include "llvm/CodeGen/MachineFunction.h"
+#include "llvm/CodeGen/MachineInstrBuilder.h"
+#include "llvm/CodeGen/MachineRegisterInfo.h"
+#include "llvm/CodeGen/SelectionDAGNodes.h"
+#include "llvm/IR/CFG.h"
+#include "llvm/IR/GlobalValue.h"
+#include "llvm/IR/Instructions.h"
+#include "llvm/IR/Intrinsics.h"
+#include "llvm/IR/Type.h"
+#include "llvm/Support/Debug.h"
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/raw_ostream.h"
+#include "llvm/Target/TargetMachine.h"
+using namespace llvm;
+
+#define DEBUG_TYPE "mips-isel"
+
+//===----------------------------------------------------------------------===//
+// Instruction Selector Implementation
+//===----------------------------------------------------------------------===//
+
+//===----------------------------------------------------------------------===//
+// MipsDAGToDAGISel - MIPS specific code to select MIPS machine
+// instructions for SelectionDAG operations.
+//===----------------------------------------------------------------------===//
+
+bool MipsDAGToDAGISel::runOnMachineFunction(MachineFunction &MF) {
+ Subtarget = &static_cast<const MipsSubtarget &>(MF.getSubtarget());
+ bool Ret = SelectionDAGISel::runOnMachineFunction(MF);
+
+ processFunctionAfterISel(MF);
+
+ return Ret;
+}
+
+/// getGlobalBaseReg - Output the instructions required to put the
+/// GOT address into a register.
+SDNode *MipsDAGToDAGISel::getGlobalBaseReg() {
+ unsigned GlobalBaseReg = MF->getInfo<MipsFunctionInfo>()->getGlobalBaseReg();
+ return CurDAG->getRegister(GlobalBaseReg, getTargetLowering()->getPointerTy(
+ CurDAG->getDataLayout()))
+ .getNode();
+}
+
+/// ComplexPattern used on MipsInstrInfo
+/// Used on Mips Load/Store instructions
+bool MipsDAGToDAGISel::selectAddrRegImm(SDValue Addr, SDValue &Base,
+ SDValue &Offset) const {
+ llvm_unreachable("Unimplemented function.");
+ return false;
+}
+
+bool MipsDAGToDAGISel::selectAddrRegReg(SDValue Addr, SDValue &Base,
+ SDValue &Offset) const {
+ llvm_unreachable("Unimplemented function.");
+ return false;
+}
+
+bool MipsDAGToDAGISel::selectAddrDefault(SDValue Addr, SDValue &Base,
+ SDValue &Offset) const {
+ llvm_unreachable("Unimplemented function.");
+ return false;
+}
+
+bool MipsDAGToDAGISel::selectIntAddr(SDValue Addr, SDValue &Base,
+ SDValue &Offset) const {
+ llvm_unreachable("Unimplemented function.");
+ return false;
+}
+
+bool MipsDAGToDAGISel::selectIntAddrMM(SDValue Addr, SDValue &Base,
+ SDValue &Offset) const {
+ llvm_unreachable("Unimplemented function.");
+ return false;
+}
+
+bool MipsDAGToDAGISel::selectIntAddrLSL2MM(SDValue Addr, SDValue &Base,
+ SDValue &Offset) const {
+ llvm_unreachable("Unimplemented function.");
+ return false;
+}
+
+bool MipsDAGToDAGISel::selectIntAddrMSA(SDValue Addr, SDValue &Base,
+ SDValue &Offset) const {
+ llvm_unreachable("Unimplemented function.");
+ return false;
+}
+
+bool MipsDAGToDAGISel::selectAddr16(SDNode *Parent, SDValue N, SDValue &Base,
+ SDValue &Offset, SDValue &Alias) {
+ llvm_unreachable("Unimplemented function.");
+ return false;
+}
+
+bool MipsDAGToDAGISel::selectVSplat(SDNode *N, APInt &Imm,
+ unsigned MinSizeInBits) const {
+ llvm_unreachable("Unimplemented function.");
+ return false;
+}
+
+bool MipsDAGToDAGISel::selectVSplatUimm1(SDValue N, SDValue &Imm) const {
+ llvm_unreachable("Unimplemented function.");
+ return false;
+}
+
+bool MipsDAGToDAGISel::selectVSplatUimm2(SDValue N, SDValue &Imm) const {
+ llvm_unreachable("Unimplemented function.");
+ return false;
+}
+
+bool MipsDAGToDAGISel::selectVSplatUimm3(SDValue N, SDValue &Imm) const {
+ llvm_unreachable("Unimplemented function.");
+ return false;
+}
+
+bool MipsDAGToDAGISel::selectVSplatUimm4(SDValue N, SDValue &Imm) const {
+ llvm_unreachable("Unimplemented function.");
+ return false;
+}
+
+bool MipsDAGToDAGISel::selectVSplatUimm5(SDValue N, SDValue &Imm) const {
+ llvm_unreachable("Unimplemented function.");
+ return false;
+}
+
+bool MipsDAGToDAGISel::selectVSplatUimm6(SDValue N, SDValue &Imm) const {
+ llvm_unreachable("Unimplemented function.");
+ return false;
+}
+
+bool MipsDAGToDAGISel::selectVSplatUimm8(SDValue N, SDValue &Imm) const {
+ llvm_unreachable("Unimplemented function.");
+ return false;
+}
+
+bool MipsDAGToDAGISel::selectVSplatSimm5(SDValue N, SDValue &Imm) const {
+ llvm_unreachable("Unimplemented function.");
+ return false;
+}
+
+bool MipsDAGToDAGISel::selectVSplatUimmPow2(SDValue N, SDValue &Imm) const {
+ llvm_unreachable("Unimplemented function.");
+ return false;
+}
+
+bool MipsDAGToDAGISel::selectVSplatUimmInvPow2(SDValue N, SDValue &Imm) const {
+ llvm_unreachable("Unimplemented function.");
+ return false;
+}
+
+bool MipsDAGToDAGISel::selectVSplatMaskL(SDValue N, SDValue &Imm) const {
+ llvm_unreachable("Unimplemented function.");
+ return false;
+}
+
+bool MipsDAGToDAGISel::selectVSplatMaskR(SDValue N, SDValue &Imm) const {
+ llvm_unreachable("Unimplemented function.");
+ return false;
+}
+
+/// Select instructions not customized! Used for
+/// expanded, promoted and normal instructions
+SDNode* MipsDAGToDAGISel::Select(SDNode *Node) {
+ unsigned Opcode = Node->getOpcode();
+
+ // Dump information about the Node being selected
+ DEBUG(errs() << "Selecting: "; Node->dump(CurDAG); errs() << "\n");
+
+ // If we have a custom node, we already have selected!
+ if (Node->isMachineOpcode()) {
+ DEBUG(errs() << "== "; Node->dump(CurDAG); errs() << "\n");
+ Node->setNodeId(-1);
+ return nullptr;
+ }
+
+ // See if subclasses can handle this node.
+ std::pair<bool, SDNode*> Ret = selectNode(Node);
+
+ if (Ret.first)
+ return Ret.second;
+
+ switch(Opcode) {
+ default: break;
+
+ // Get target GOT address.
+ case ISD::GLOBAL_OFFSET_TABLE:
+ return getGlobalBaseReg();
+
+#ifndef NDEBUG
+ case ISD::LOAD:
+ case ISD::STORE:
+ assert((Subtarget->systemSupportsUnalignedAccess() ||
+ cast<MemSDNode>(Node)->getMemoryVT().getSizeInBits() / 8 <=
+ cast<MemSDNode>(Node)->getAlignment()) &&
+ "Unexpected unaligned loads/stores.");
+ break;
+#endif
+ }
+
+ // Select the default instruction
+ SDNode *ResNode = SelectCode(Node);
+
+ DEBUG(errs() << "=> ");
+ if (ResNode == nullptr || ResNode == Node)
+ DEBUG(Node->dump(CurDAG));
+ else
+ DEBUG(ResNode->dump(CurDAG));
+ DEBUG(errs() << "\n");
+ return ResNode;
+}
+
+bool MipsDAGToDAGISel::
+SelectInlineAsmMemoryOperand(const SDValue &Op, unsigned ConstraintID,
+ std::vector<SDValue> &OutOps) {
+ // All memory constraints can at least accept raw pointers.
+ switch(ConstraintID) {
+ default:
+ llvm_unreachable("Unexpected asm memory constraint");
+ case InlineAsm::Constraint_i:
+ case InlineAsm::Constraint_m:
+ case InlineAsm::Constraint_R:
+ case InlineAsm::Constraint_ZC:
+ OutOps.push_back(Op);
+ return false;
+ }
+ return true;
+}
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