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Use the shared AsmPrinter code for some basic stuff. No functionality

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change except for fewer .section directives emitted


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24764 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-12-17 07:04:29 +00:00
parent 98abbfb2ef
commit 1dbed16fec
2 changed files with 28 additions and 82 deletions
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55
lib/Target/Sparc/SparcAsmPrinter.cpp
View File

@ -18,6 +18,7 @@
#include "llvm/DerivedTypes.h" #include "llvm/DerivedTypes.h"
#include "llvm/Module.h" #include "llvm/Module.h"
#include "llvm/Assembly/Writer.h" #include "llvm/Assembly/Writer.h"
#include "llvm/CodeGen/AsmPrinter.h"
#include "llvm/CodeGen/MachineFunctionPass.h" #include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineConstantPool.h" #include "llvm/CodeGen/MachineConstantPool.h"
#include "llvm/CodeGen/MachineInstr.h" #include "llvm/CodeGen/MachineInstr.h"
@ -33,21 +34,8 @@ using namespace llvm;
namespace { namespace {
Statistic<> EmittedInsts("asm-printer", "Number of machine instrs printed"); Statistic<> EmittedInsts("asm-printer", "Number of machine instrs printed");
struct SparcV8AsmPrinter : public MachineFunctionPass { struct SparcV8AsmPrinter : public AsmPrinter {
/// Output stream on which we're printing assembly code. SparcV8AsmPrinter(std::ostream &O, TargetMachine &TM) : AsmPrinter(O, TM) {}
///
std::ostream &O;
/// Target machine description which we query for reg. names, data
/// layout, etc.
///
TargetMachine &TM;
/// Name-mangler for global names.
///
Mangler *Mang;
SparcV8AsmPrinter(std::ostream &o, TargetMachine &tm) : O(o), TM(tm) { }
/// We name each basic block in a Function with a unique number, so /// We name each basic block in a Function with a unique number, so
/// that we can consistently refer to them later. This is cleared /// that we can consistently refer to them later. This is cleared
@ -56,12 +44,6 @@ namespace {
typedef std::map<const Value *, unsigned> ValueMapTy; typedef std::map<const Value *, unsigned> ValueMapTy;
ValueMapTy NumberForBB; ValueMapTy NumberForBB;
/// Cache of mangled name for current function. This is
/// recalculated at the beginning of each call to
/// runOnMachineFunction().
///
std::string CurrentFnName;
virtual const char *getPassName() const { virtual const char *getPassName() const {
return "SparcV8 Assembly Printer"; return "SparcV8 Assembly Printer";
} }
@ -306,8 +288,8 @@ void SparcV8AsmPrinter::printConstantPool(MachineConstantPool *MCP) {
if (CP.empty()) return; if (CP.empty()) return;
SwitchSection(".section \".rodata\"\n", 0);
for (unsigned i = 0, e = CP.size(); i != e; ++i) { for (unsigned i = 0, e = CP.size(); i != e; ++i) {
O << "\t.section \".rodata\"\n";
O << "\t.align " << (unsigned)TD.getTypeAlignment(CP[i]->getType()) O << "\t.align " << (unsigned)TD.getTypeAlignment(CP[i]->getType())
<< "\n"; << "\n";
O << ".CPI" << CurrentFnName << "_" << i << ":\t\t\t\t\t!" O << ".CPI" << CurrentFnName << "_" << i << ":\t\t\t\t\t!"
@ -320,6 +302,8 @@ void SparcV8AsmPrinter::printConstantPool(MachineConstantPool *MCP) {
/// method to print assembly for each instruction. /// method to print assembly for each instruction.
/// ///
bool SparcV8AsmPrinter::runOnMachineFunction(MachineFunction &MF) { bool SparcV8AsmPrinter::runOnMachineFunction(MachineFunction &MF) {
SetupMachineFunction(MF);
// BBNumber is used here so that a given Printer will never give two // BBNumber is used here so that a given Printer will never give two
// BBs the same name. (If you have a better way, please let me know!) // BBs the same name. (If you have a better way, please let me know!)
static unsigned BBNumber = 0; static unsigned BBNumber = 0;
@ -358,6 +342,7 @@ bool SparcV8AsmPrinter::runOnMachineFunction(MachineFunction &MF) {
// Print the assembly for the instruction. // Print the assembly for the instruction.
O << "\t"; O << "\t";
printInstruction(II); printInstruction(II);
++EmittedInsts;
} }
} }
@ -426,21 +411,8 @@ bool SparcV8AsmPrinter::doInitialization(Module &M) {
return false; // success return false; // success
} }
// SwitchSection - Switch to the specified section of the executable if we are
// not already in it!
//
static void SwitchSection(std::ostream &OS, std::string &CurSection,
const char *NewSection) {
if (CurSection != NewSection) {
CurSection = NewSection;
if (!CurSection.empty())
OS << "\t.section \"" << NewSection << "\"\n";
}
}
bool SparcV8AsmPrinter::doFinalization(Module &M) { bool SparcV8AsmPrinter::doFinalization(Module &M) {
const TargetData &TD = TM.getTargetData(); const TargetData &TD = TM.getTargetData();
std::string CurSection;
// Print out module-level global variables here. // Print out module-level global variables here.
for (Module::const_global_iterator I = M.global_begin(), E = M.global_end(); I != E; ++I) for (Module::const_global_iterator I = M.global_begin(), E = M.global_end(); I != E; ++I)
@ -454,7 +426,7 @@ bool SparcV8AsmPrinter::doFinalization(Module &M) {
if (C->isNullValue() && if (C->isNullValue() &&
(I->hasLinkOnceLinkage() || I->hasInternalLinkage() || (I->hasLinkOnceLinkage() || I->hasInternalLinkage() ||
I->hasWeakLinkage() /* FIXME: Verify correct */)) { I->hasWeakLinkage() /* FIXME: Verify correct */)) {
SwitchSection(O, CurSection, ".data"); SwitchSection(".data", I);
if (I->hasInternalLinkage()) if (I->hasInternalLinkage())
O << "\t.local " << name << "\n"; O << "\t.local " << name << "\n";
@ -469,8 +441,9 @@ bool SparcV8AsmPrinter::doFinalization(Module &M) {
case GlobalValue::WeakLinkage: // FIXME: Verify correct for weak. case GlobalValue::WeakLinkage: // FIXME: Verify correct for weak.
// Nonnull linkonce -> weak // Nonnull linkonce -> weak
O << "\t.weak " << name << "\n"; O << "\t.weak " << name << "\n";
SwitchSection(O, CurSection, ""); SwitchSection("", I);
O << "\t.section\t\".llvm.linkonce.d." << name << "\",\"aw\",@progbits\n"; O << "\t.section\t\".llvm.linkonce.d." << name
<< "\",\"aw\",@progbits\n";
break; break;
case GlobalValue::AppendingLinkage: case GlobalValue::AppendingLinkage:
@ -482,9 +455,9 @@ bool SparcV8AsmPrinter::doFinalization(Module &M) {
// FALL THROUGH // FALL THROUGH
case GlobalValue::InternalLinkage: case GlobalValue::InternalLinkage:
if (C->isNullValue()) if (C->isNullValue())
SwitchSection(O, CurSection, ".bss"); SwitchSection(".bss", I);
else else
SwitchSection(O, CurSection, ".data"); SwitchSection(".data", I);
break; break;
case GlobalValue::GhostLinkage: case GlobalValue::GhostLinkage:
std::cerr << "Should not have any unmaterialized functions!\n"; std::cerr << "Should not have any unmaterialized functions!\n";
@ -503,6 +476,6 @@ bool SparcV8AsmPrinter::doFinalization(Module &M) {
} }
} }
delete Mang; AsmPrinter::doFinalization(M);
return false; // success return false; // success
} }

55
lib/Target/SparcV8/SparcV8AsmPrinter.cpp
View File

@ -18,6 +18,7 @@
#include "llvm/DerivedTypes.h" #include "llvm/DerivedTypes.h"
#include "llvm/Module.h" #include "llvm/Module.h"
#include "llvm/Assembly/Writer.h" #include "llvm/Assembly/Writer.h"
#include "llvm/CodeGen/AsmPrinter.h"
#include "llvm/CodeGen/MachineFunctionPass.h" #include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineConstantPool.h" #include "llvm/CodeGen/MachineConstantPool.h"
#include "llvm/CodeGen/MachineInstr.h" #include "llvm/CodeGen/MachineInstr.h"
@ -33,21 +34,8 @@ using namespace llvm;
namespace { namespace {
Statistic<> EmittedInsts("asm-printer", "Number of machine instrs printed"); Statistic<> EmittedInsts("asm-printer", "Number of machine instrs printed");
struct SparcV8AsmPrinter : public MachineFunctionPass { struct SparcV8AsmPrinter : public AsmPrinter {
/// Output stream on which we're printing assembly code. SparcV8AsmPrinter(std::ostream &O, TargetMachine &TM) : AsmPrinter(O, TM) {}
///
std::ostream &O;
/// Target machine description which we query for reg. names, data
/// layout, etc.
///
TargetMachine &TM;
/// Name-mangler for global names.
///
Mangler *Mang;
SparcV8AsmPrinter(std::ostream &o, TargetMachine &tm) : O(o), TM(tm) { }
/// We name each basic block in a Function with a unique number, so /// We name each basic block in a Function with a unique number, so
/// that we can consistently refer to them later. This is cleared /// that we can consistently refer to them later. This is cleared
@ -56,12 +44,6 @@ namespace {
typedef std::map<const Value *, unsigned> ValueMapTy; typedef std::map<const Value *, unsigned> ValueMapTy;
ValueMapTy NumberForBB; ValueMapTy NumberForBB;
/// Cache of mangled name for current function. This is
/// recalculated at the beginning of each call to
/// runOnMachineFunction().
///
std::string CurrentFnName;
virtual const char *getPassName() const { virtual const char *getPassName() const {
return "SparcV8 Assembly Printer"; return "SparcV8 Assembly Printer";
} }
@ -306,8 +288,8 @@ void SparcV8AsmPrinter::printConstantPool(MachineConstantPool *MCP) {
if (CP.empty()) return; if (CP.empty()) return;
SwitchSection(".section \".rodata\"\n", 0);
for (unsigned i = 0, e = CP.size(); i != e; ++i) { for (unsigned i = 0, e = CP.size(); i != e; ++i) {
O << "\t.section \".rodata\"\n";
O << "\t.align " << (unsigned)TD.getTypeAlignment(CP[i]->getType()) O << "\t.align " << (unsigned)TD.getTypeAlignment(CP[i]->getType())
<< "\n"; << "\n";
O << ".CPI" << CurrentFnName << "_" << i << ":\t\t\t\t\t!" O << ".CPI" << CurrentFnName << "_" << i << ":\t\t\t\t\t!"
@ -320,6 +302,8 @@ void SparcV8AsmPrinter::printConstantPool(MachineConstantPool *MCP) {
/// method to print assembly for each instruction. /// method to print assembly for each instruction.
/// ///
bool SparcV8AsmPrinter::runOnMachineFunction(MachineFunction &MF) { bool SparcV8AsmPrinter::runOnMachineFunction(MachineFunction &MF) {
SetupMachineFunction(MF);
// BBNumber is used here so that a given Printer will never give two // BBNumber is used here so that a given Printer will never give two
// BBs the same name. (If you have a better way, please let me know!) // BBs the same name. (If you have a better way, please let me know!)
static unsigned BBNumber = 0; static unsigned BBNumber = 0;
@ -358,6 +342,7 @@ bool SparcV8AsmPrinter::runOnMachineFunction(MachineFunction &MF) {
// Print the assembly for the instruction. // Print the assembly for the instruction.
O << "\t"; O << "\t";
printInstruction(II); printInstruction(II);
++EmittedInsts;
} }
} }
@ -426,21 +411,8 @@ bool SparcV8AsmPrinter::doInitialization(Module &M) {
return false; // success return false; // success
} }
// SwitchSection - Switch to the specified section of the executable if we are
// not already in it!
//
static void SwitchSection(std::ostream &OS, std::string &CurSection,
const char *NewSection) {
if (CurSection != NewSection) {
CurSection = NewSection;
if (!CurSection.empty())
OS << "\t.section \"" << NewSection << "\"\n";
}
}
bool SparcV8AsmPrinter::doFinalization(Module &M) { bool SparcV8AsmPrinter::doFinalization(Module &M) {
const TargetData &TD = TM.getTargetData(); const TargetData &TD = TM.getTargetData();
std::string CurSection;
// Print out module-level global variables here. // Print out module-level global variables here.
for (Module::const_global_iterator I = M.global_begin(), E = M.global_end(); I != E; ++I) for (Module::const_global_iterator I = M.global_begin(), E = M.global_end(); I != E; ++I)
@ -454,7 +426,7 @@ bool SparcV8AsmPrinter::doFinalization(Module &M) {
if (C->isNullValue() && if (C->isNullValue() &&
(I->hasLinkOnceLinkage() || I->hasInternalLinkage() || (I->hasLinkOnceLinkage() || I->hasInternalLinkage() ||
I->hasWeakLinkage() /* FIXME: Verify correct */)) { I->hasWeakLinkage() /* FIXME: Verify correct */)) {
SwitchSection(O, CurSection, ".data"); SwitchSection(".data", I);
if (I->hasInternalLinkage()) if (I->hasInternalLinkage())
O << "\t.local " << name << "\n"; O << "\t.local " << name << "\n";
@ -469,8 +441,9 @@ bool SparcV8AsmPrinter::doFinalization(Module &M) {
case GlobalValue::WeakLinkage: // FIXME: Verify correct for weak. case GlobalValue::WeakLinkage: // FIXME: Verify correct for weak.
// Nonnull linkonce -> weak // Nonnull linkonce -> weak
O << "\t.weak " << name << "\n"; O << "\t.weak " << name << "\n";
SwitchSection(O, CurSection, ""); SwitchSection("", I);
O << "\t.section\t\".llvm.linkonce.d." << name << "\",\"aw\",@progbits\n"; O << "\t.section\t\".llvm.linkonce.d." << name
<< "\",\"aw\",@progbits\n";
break; break;
case GlobalValue::AppendingLinkage: case GlobalValue::AppendingLinkage:
@ -482,9 +455,9 @@ bool SparcV8AsmPrinter::doFinalization(Module &M) {
// FALL THROUGH // FALL THROUGH
case GlobalValue::InternalLinkage: case GlobalValue::InternalLinkage:
if (C->isNullValue()) if (C->isNullValue())
SwitchSection(O, CurSection, ".bss"); SwitchSection(".bss", I);
else else
SwitchSection(O, CurSection, ".data"); SwitchSection(".data", I);
break; break;
case GlobalValue::GhostLinkage: case GlobalValue::GhostLinkage:
std::cerr << "Should not have any unmaterialized functions!\n"; std::cerr << "Should not have any unmaterialized functions!\n";
@ -503,6 +476,6 @@ bool SparcV8AsmPrinter::doFinalization(Module &M) {
} }
} }
delete Mang; AsmPrinter::doFinalization(M);
return false; // success return false; // success
} }