From f1e2b23dfabb74249c2f1828dc902bd4bda52aa8 Mon Sep 17 00:00:00 2001 From: Jakob Stoklund Olesen Date: Thu, 9 Jun 2011 18:42:07 +0000 Subject: [PATCH] Move TableGen's register bank classes to their own source file. I'll be moving some more code there to gather all of the register-specific stuff in one place. Currently it is shared between CodeGenTarget and RegisterInfoEmitter. The plan is that CodeGenRegisters can compute the full register bank structure while RegisterInfoEmitter only will handle the printing part. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132788 91177308-0d34-0410-b5e6-96231b3b80d8 --- utils/TableGen/CMakeLists.txt | 1 + utils/TableGen/CodeGenRegisters.cpp | 101 ++++++++++++++++++++++++++++ utils/TableGen/CodeGenTarget.cpp | 73 -------------------- 3 files changed, 102 insertions(+), 73 deletions(-) create mode 100644 utils/TableGen/CodeGenRegisters.cpp diff --git a/utils/TableGen/CMakeLists.txt b/utils/TableGen/CMakeLists.txt index db5823729a1..a24c9214c1e 100644 --- a/utils/TableGen/CMakeLists.txt +++ b/utils/TableGen/CMakeLists.txt @@ -16,6 +16,7 @@ add_llvm_utility(tblgen CodeEmitterGen.cpp CodeGenDAGPatterns.cpp CodeGenInstruction.cpp + CodeGenRegisters.cpp CodeGenTarget.cpp DAGISelEmitter.cpp DAGISelMatcherEmitter.cpp diff --git a/utils/TableGen/CodeGenRegisters.cpp b/utils/TableGen/CodeGenRegisters.cpp new file mode 100644 index 00000000000..2b0405a01b9 --- /dev/null +++ b/utils/TableGen/CodeGenRegisters.cpp @@ -0,0 +1,101 @@ +//===- CodeGenRegisters.cpp - Register and RegisterClass Info -------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file defines structures to encapsulate information gleaned from the +// target register and register class definitions. +// +//===----------------------------------------------------------------------===// + +#include "CodeGenRegisters.h" +#include "CodeGenTarget.h" +#include "llvm/ADT/StringExtras.h" + +using namespace llvm; + +//===----------------------------------------------------------------------===// +// CodeGenRegister +//===----------------------------------------------------------------------===// + +CodeGenRegister::CodeGenRegister(Record *R) : TheDef(R) { + CostPerUse = R->getValueAsInt("CostPerUse"); +} + +const std::string &CodeGenRegister::getName() const { + return TheDef->getName(); +} + +//===----------------------------------------------------------------------===// +// CodeGenRegisterClass +//===----------------------------------------------------------------------===// + +CodeGenRegisterClass::CodeGenRegisterClass(Record *R) : TheDef(R) { + // Rename anonymous register classes. + if (R->getName().size() > 9 && R->getName()[9] == '.') { + static unsigned AnonCounter = 0; + R->setName("AnonRegClass_"+utostr(AnonCounter++)); + } + + std::vector TypeList = R->getValueAsListOfDefs("RegTypes"); + for (unsigned i = 0, e = TypeList.size(); i != e; ++i) { + Record *Type = TypeList[i]; + if (!Type->isSubClassOf("ValueType")) + throw "RegTypes list member '" + Type->getName() + + "' does not derive from the ValueType class!"; + VTs.push_back(getValueType(Type)); + } + assert(!VTs.empty() && "RegisterClass must contain at least one ValueType!"); + + std::vector RegList = R->getValueAsListOfDefs("MemberList"); + for (unsigned i = 0, e = RegList.size(); i != e; ++i) { + Record *Reg = RegList[i]; + if (!Reg->isSubClassOf("Register")) + throw "Register Class member '" + Reg->getName() + + "' does not derive from the Register class!"; + Elements.push_back(Reg); + } + + // SubRegClasses is a list containing (RC, subregindex, ...) dags. + ListInit *SRC = R->getValueAsListInit("SubRegClasses"); + for (ListInit::const_iterator i = SRC->begin(), e = SRC->end(); i != e; ++i) { + DagInit *DAG = dynamic_cast(*i); + if (!DAG) throw "SubRegClasses must contain DAGs"; + DefInit *DAGOp = dynamic_cast(DAG->getOperator()); + Record *RCRec; + if (!DAGOp || !(RCRec = DAGOp->getDef())->isSubClassOf("RegisterClass")) + throw "Operator '" + DAG->getOperator()->getAsString() + + "' in SubRegClasses is not a RegisterClass"; + // Iterate over args, all SubRegIndex instances. + for (DagInit::const_arg_iterator ai = DAG->arg_begin(), ae = DAG->arg_end(); + ai != ae; ++ai) { + DefInit *Idx = dynamic_cast(*ai); + Record *IdxRec; + if (!Idx || !(IdxRec = Idx->getDef())->isSubClassOf("SubRegIndex")) + throw "Argument '" + (*ai)->getAsString() + + "' in SubRegClasses is not a SubRegIndex"; + if (!SubRegClasses.insert(std::make_pair(IdxRec, RCRec)).second) + throw "SubRegIndex '" + IdxRec->getName() + "' mentioned twice"; + } + } + + // Allow targets to override the size in bits of the RegisterClass. + unsigned Size = R->getValueAsInt("Size"); + + Namespace = R->getValueAsString("Namespace"); + SpillSize = Size ? Size : EVT(VTs[0]).getSizeInBits(); + SpillAlignment = R->getValueAsInt("Alignment"); + CopyCost = R->getValueAsInt("CopyCost"); + Allocatable = R->getValueAsBit("isAllocatable"); + MethodBodies = R->getValueAsCode("MethodBodies"); + MethodProtos = R->getValueAsCode("MethodProtos"); +} + +const std::string &CodeGenRegisterClass::getName() const { + return TheDef->getName(); +} + diff --git a/utils/TableGen/CodeGenTarget.cpp b/utils/TableGen/CodeGenTarget.cpp index 301ffdd01c4..953bb83b899 100644 --- a/utils/TableGen/CodeGenTarget.cpp +++ b/utils/TableGen/CodeGenTarget.cpp @@ -169,14 +169,6 @@ void CodeGenTarget::ReadRegisters() const { Registers[i].EnumValue = i + 1; } -CodeGenRegister::CodeGenRegister(Record *R) : TheDef(R) { - CostPerUse = R->getValueAsInt("CostPerUse"); -} - -const std::string &CodeGenRegister::getName() const { - return TheDef->getName(); -} - void CodeGenTarget::ReadSubRegIndices() const { SubRegIndices = Records.getAllDerivedDefinitions("SubRegIndex"); std::sort(SubRegIndices.begin(), SubRegIndices.end(), LessRecord()); @@ -233,71 +225,6 @@ getRegisterVTs(Record *R) const { } -CodeGenRegisterClass::CodeGenRegisterClass(Record *R) : TheDef(R) { - // Rename anonymous register classes. - if (R->getName().size() > 9 && R->getName()[9] == '.') { - static unsigned AnonCounter = 0; - R->setName("AnonRegClass_"+utostr(AnonCounter++)); - } - - std::vector TypeList = R->getValueAsListOfDefs("RegTypes"); - for (unsigned i = 0, e = TypeList.size(); i != e; ++i) { - Record *Type = TypeList[i]; - if (!Type->isSubClassOf("ValueType")) - throw "RegTypes list member '" + Type->getName() + - "' does not derive from the ValueType class!"; - VTs.push_back(getValueType(Type)); - } - assert(!VTs.empty() && "RegisterClass must contain at least one ValueType!"); - - std::vector RegList = R->getValueAsListOfDefs("MemberList"); - for (unsigned i = 0, e = RegList.size(); i != e; ++i) { - Record *Reg = RegList[i]; - if (!Reg->isSubClassOf("Register")) - throw "Register Class member '" + Reg->getName() + - "' does not derive from the Register class!"; - Elements.push_back(Reg); - } - - // SubRegClasses is a list containing (RC, subregindex, ...) dags. - ListInit *SRC = R->getValueAsListInit("SubRegClasses"); - for (ListInit::const_iterator i = SRC->begin(), e = SRC->end(); i != e; ++i) { - DagInit *DAG = dynamic_cast(*i); - if (!DAG) throw "SubRegClasses must contain DAGs"; - DefInit *DAGOp = dynamic_cast(DAG->getOperator()); - Record *RCRec; - if (!DAGOp || !(RCRec = DAGOp->getDef())->isSubClassOf("RegisterClass")) - throw "Operator '" + DAG->getOperator()->getAsString() + - "' in SubRegClasses is not a RegisterClass"; - // Iterate over args, all SubRegIndex instances. - for (DagInit::const_arg_iterator ai = DAG->arg_begin(), ae = DAG->arg_end(); - ai != ae; ++ai) { - DefInit *Idx = dynamic_cast(*ai); - Record *IdxRec; - if (!Idx || !(IdxRec = Idx->getDef())->isSubClassOf("SubRegIndex")) - throw "Argument '" + (*ai)->getAsString() + - "' in SubRegClasses is not a SubRegIndex"; - if (!SubRegClasses.insert(std::make_pair(IdxRec, RCRec)).second) - throw "SubRegIndex '" + IdxRec->getName() + "' mentioned twice"; - } - } - - // Allow targets to override the size in bits of the RegisterClass. - unsigned Size = R->getValueAsInt("Size"); - - Namespace = R->getValueAsString("Namespace"); - SpillSize = Size ? Size : EVT(VTs[0]).getSizeInBits(); - SpillAlignment = R->getValueAsInt("Alignment"); - CopyCost = R->getValueAsInt("CopyCost"); - Allocatable = R->getValueAsBit("isAllocatable"); - MethodBodies = R->getValueAsCode("MethodBodies"); - MethodProtos = R->getValueAsCode("MethodProtos"); -} - -const std::string &CodeGenRegisterClass::getName() const { - return TheDef->getName(); -} - void CodeGenTarget::ReadLegalValueTypes() const { const std::vector &RCs = getRegisterClasses(); for (unsigned i = 0, e = RCs.size(); i != e; ++i)