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switch off of 'Section' onto MCSection. We're not properly using

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MCSection subclasses yet, but this is a step in the right direction.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77708 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2009-07-31 18:48:30 +00:00
parent 5e5337a833
commit a87dea4f8c
21 changed files with 189 additions and 182 deletions
Download Patch File Download Diff File Expand all files Collapse all files

67
lib/Target/PIC16/PIC16TargetObjectFile.cpp
View File

@ -12,11 +12,13 @@
#include "PIC16TargetMachine.h"
#include "llvm/DerivedTypes.h"
#include "llvm/Module.h"
#include "llvm/MC/MCSection.h"
using namespace llvm;
PIC16TargetObjectFile::PIC16TargetObjectFile(const PIC16TargetMachine &tm)
: TM (tm) {
void PIC16TargetObjectFile::Initialize(MCContext &Ctx, const TargetMachine &tm){
TargetLoweringObjectFile::Initialize(Ctx, tm);
TM = &tm;
BSSSection_ = getOrCreateSection("udata.# UDATA", false, SectionKind::BSS);
ReadOnlySection = getOrCreateSection("romdata.# ROMDATA", false,
SectionKind::ReadOnly);
@ -26,9 +28,7 @@ PIC16TargetObjectFile::PIC16TargetObjectFile(const PIC16TargetMachine &tm)
// in BeginModule, and gpasm cribbs for that .text symbol.
TextSection = getOrCreateSection("", true, SectionKind::Text);
PIC16Section *ROSection = new PIC16Section(ReadOnlySection);
ROSections.push_back(ROSection);
ROSections.push_back(new PIC16Section(ReadOnlySection));
// FIXME: I don't know what the classification of these sections really is.
ExternalVarDecls = new PIC16Section(getOrCreateSection("ExternalVarDecls",
@ -40,14 +40,14 @@ PIC16TargetObjectFile::PIC16TargetObjectFile(const PIC16TargetMachine &tm)
}
const Section *
const MCSection *
PIC16TargetObjectFile::getBSSSectionForGlobal(const GlobalVariable *GV) const {
assert(GV->hasInitializer() && "This global doesn't need space");
Constant *C = GV->getInitializer();
assert(C->isNullValue() && "Unitialized globals has non-zero initializer");
// Find how much space this global needs.
const TargetData *TD = TM.getTargetData();
const TargetData *TD = TM->getTargetData();
const Type *Ty = C->getType();
unsigned ValSize = TD->getTypeAllocSize(Ty);
@ -64,9 +64,9 @@ PIC16TargetObjectFile::getBSSSectionForGlobal(const GlobalVariable *GV) const {
// No BSS section spacious enough was found. Crate a new one.
if (!FoundBSS) {
std::string name = PAN::getUdataSectionName(BSSSections.size());
const Section *NewSection = getOrCreateSection(name.c_str(), false,
// FIXME.
SectionKind::Metadata);
const MCSection *NewSection = getOrCreateSection(name.c_str(), false,
// FIXME.
SectionKind::Metadata);
FoundBSS = new PIC16Section(NewSection);
@ -80,7 +80,7 @@ PIC16TargetObjectFile::getBSSSectionForGlobal(const GlobalVariable *GV) const {
return FoundBSS->S_;
}
const Section *
const MCSection *
PIC16TargetObjectFile::getIDATASectionForGlobal(const GlobalVariable *GV) const{
assert(GV->hasInitializer() && "This global doesn't need space");
Constant *C = GV->getInitializer();
@ -89,7 +89,7 @@ PIC16TargetObjectFile::getIDATASectionForGlobal(const GlobalVariable *GV) const{
"can split initialized RAM data only");
// Find how much space this global needs.
const TargetData *TD = TM.getTargetData();
const TargetData *TD = TM->getTargetData();
const Type *Ty = C->getType();
unsigned ValSize = TD->getTypeAllocSize(Ty);
@ -106,8 +106,7 @@ PIC16TargetObjectFile::getIDATASectionForGlobal(const GlobalVariable *GV) const{
// No IDATA section spacious enough was found. Crate a new one.
if (!FoundIDATA) {
std::string name = PAN::getIdataSectionName(IDATASections.size());
const Section *NewSection = getOrCreateSection(name.c_str(),
false,
const MCSection *NewSection = getOrCreateSection(name.c_str(), false,
// FIXME.
SectionKind::Metadata);
@ -125,7 +124,7 @@ PIC16TargetObjectFile::getIDATASectionForGlobal(const GlobalVariable *GV) const{
// Get the section for an automatic variable of a function.
// For PIC16 they are globals only with mangled names.
const Section *
const MCSection *
PIC16TargetObjectFile::getSectionForAuto(const GlobalVariable *GV) const {
const std::string name = PAN::getSectionNameForSym(GV->getName());
@ -142,10 +141,10 @@ PIC16TargetObjectFile::getSectionForAuto(const GlobalVariable *GV) const {
// No Auto section was found. Crate a new one.
if (!FoundAutoSec) {
const Section *NewSection = getOrCreateSection(name.c_str(),
// FIXME.
false,
SectionKind::Metadata);
const MCSection *NewSection = getOrCreateSection(name.c_str(),
// FIXME.
false,
SectionKind::Metadata);
FoundAutoSec = new PIC16Section(NewSection);
@ -162,7 +161,7 @@ PIC16TargetObjectFile::getSectionForAuto(const GlobalVariable *GV) const {
// Override default implementation to put the true globals into
// multiple data sections if required.
const Section*
const MCSection *
PIC16TargetObjectFile::SelectSectionForGlobal(const GlobalValue *GV1,
SectionKind Kind,
Mangler *Mang,
@ -224,7 +223,7 @@ PIC16TargetObjectFile::~PIC16TargetObjectFile() {
/// getSpecialCasedSectionGlobals - Allow the target to completely override
/// section assignment of a global.
const Section *
const MCSection *
PIC16TargetObjectFile::getSpecialCasedSectionGlobals(const GlobalValue *GV,
Mangler *Mang,
SectionKind Kind) const {
@ -250,7 +249,7 @@ PIC16TargetObjectFile::getSpecialCasedSectionGlobals(const GlobalValue *GV,
// Create a new section for global variable. If Addr is given then create
// section at that address else create by name.
const Section *
const MCSection *
PIC16TargetObjectFile::CreateSectionForGlobal(const GlobalVariable *GV,
Mangler *Mang,
const std::string &Addr) const {
@ -268,11 +267,11 @@ PIC16TargetObjectFile::CreateSectionForGlobal(const GlobalVariable *GV,
return CreateROSectionForGlobal(GV, Addr);
// Else let the default implementation take care of it.
return TargetLoweringObjectFile::SectionForGlobal(GV, Mang, TM);
return TargetLoweringObjectFile::SectionForGlobal(GV, Mang, *TM);
}
// Create uninitialized section for a variable.
const Section *
const MCSection *
PIC16TargetObjectFile::CreateBSSSectionForGlobal(const GlobalVariable *GV,
std::string Addr) const {
assert(GV->hasInitializer() && "This global doesn't need space");
@ -297,8 +296,8 @@ PIC16TargetObjectFile::CreateBSSSectionForGlobal(const GlobalVariable *GV,
PIC16Section *NewBSS = FoundBSS;
if (NewBSS == NULL) {
const Section *NewSection = getOrCreateSection(Name.c_str(),
false, SectionKind::BSS);
const MCSection *NewSection = getOrCreateSection(Name.c_str(), false,
SectionKind::BSS);
NewBSS = new PIC16Section(NewSection);
BSSSections.push_back(NewBSS);
}
@ -314,14 +313,14 @@ PIC16TargetObjectFile::CreateBSSSectionForGlobal(const GlobalVariable *GV,
// Get rom section for a variable. Currently there can be only one rom section
// unless a variable explicitly requests a section.
const Section *
const MCSection *
PIC16TargetObjectFile::getROSectionForGlobal(const GlobalVariable *GV) const {
ROSections[0]->Items.push_back(GV);
return ROSections[0]->S_;
}
// Create initialized data section for a variable.
const Section *
const MCSection *
PIC16TargetObjectFile::CreateIDATASectionForGlobal(const GlobalVariable *GV,
std::string Addr) const {
assert(GV->hasInitializer() && "This global doesn't need space");
@ -349,8 +348,7 @@ PIC16TargetObjectFile::CreateIDATASectionForGlobal(const GlobalVariable *GV,
PIC16Section *NewIDATASec = FoundIDATASec;
if (NewIDATASec == NULL) {
const Section *NewSection = getOrCreateSection(Name.c_str(),
false,
const MCSection *NewSection = getOrCreateSection(Name.c_str(), false,
// FIXME:
SectionKind::Metadata);
NewIDATASec = new PIC16Section(NewSection);
@ -365,7 +363,7 @@ PIC16TargetObjectFile::CreateIDATASectionForGlobal(const GlobalVariable *GV,
}
// Create a section in rom for a variable.
const Section *
const MCSection *
PIC16TargetObjectFile::CreateROSectionForGlobal(const GlobalVariable *GV,
std::string Addr) const {
assert(GV->getType()->getAddressSpace() == PIC16ISD::ROM_SPACE &&
@ -390,9 +388,8 @@ PIC16TargetObjectFile::CreateROSectionForGlobal(const GlobalVariable *GV,
PIC16Section *NewRomSec = FoundROSec;
if (NewRomSec == NULL) {
const Section *NewSection = getOrCreateSection(Name.c_str(),
false,
SectionKind::ReadOnly);
const MCSection *NewSection = getOrCreateSection(Name.c_str(), false,
SectionKind::ReadOnly);
NewRomSec = new PIC16Section(NewSection);
ROSections.push_back(NewRomSec);
}