#include "llvm/DerivedTypes.h"
#include "llvm/Constants.h"
#include "llvm/Module.h"
+#include "llvm/CodeGen/Collector.h"
+#include "llvm/CodeGen/CollectorMetadata.h"
#include "llvm/CodeGen/MachineConstantPool.h"
#include "llvm/CodeGen/MachineJumpTableInfo.h"
#include "llvm/CodeGen/MachineModuleInfo.h"
#include "llvm/Target/TargetData.h"
#include "llvm/Target/TargetLowering.h"
#include "llvm/Target/TargetMachine.h"
+#include "llvm/Target/TargetRegisterInfo.h"
#include "llvm/ADT/SmallPtrSet.h"
#include <cerrno>
using namespace llvm;
char AsmPrinter::ID = 0;
AsmPrinter::AsmPrinter(std::ostream &o, TargetMachine &tm,
const TargetAsmInfo *T)
- : MachineFunctionPass((intptr_t)&ID), FunctionNumber(0), O(o), TM(tm), TAI(T)
+ : MachineFunctionPass((intptr_t)&ID), FunctionNumber(0), O(o),
+ TM(tm), TAI(T), TRI(tm.getRegisterInfo()),
+ IsInTextSection(false)
{}
std::string AsmPrinter::getSectionForFunction(const Function &F) const {
if (!CurrentSection.empty())
O << CurrentSection << TAI->getTextSectionStartSuffix() << '\n';
+
+ IsInTextSection = true;
}
/// SwitchToDataSection - Switch to the specified data section of the executable
if (!CurrentSection.empty())
O << CurrentSection << TAI->getDataSectionStartSuffix() << '\n';
+
+ IsInTextSection = false;
}
+void AsmPrinter::getAnalysisUsage(AnalysisUsage &AU) const {
+ MachineFunctionPass::getAnalysisUsage(AU);
+ AU.addRequired<CollectorModuleMetadata>();
+}
+
bool AsmPrinter::doInitialization(Module &M) {
Mang = new Mangler(M, TAI->getGlobalPrefix());
+ CollectorModuleMetadata *CMM = getAnalysisToUpdate<CollectorModuleMetadata>();
+ assert(CMM && "AsmPrinter didn't require CollectorModuleMetadata?");
+ for (CollectorModuleMetadata::iterator I = CMM->begin(),
+ E = CMM->end(); I != E; ++I)
+ (*I)->beginAssembly(O, *this, *TAI);
+
if (!M.getModuleInlineAsm().empty())
O << TAI->getCommentString() << " Start of file scope inline assembly\n"
<< M.getModuleInlineAsm()
SwitchToDataSection(""); // Reset back to no section.
- if (MachineModuleInfo *MMI = getAnalysisToUpdate<MachineModuleInfo>()) {
- MMI->AnalyzeModule(M);
- }
+ MMI = getAnalysisToUpdate<MachineModuleInfo>();
+ if (MMI) MMI->AnalyzeModule(M);
return false;
}
O << TAI->getWeakRefDirective() << Name << "\n";
else if (!I->hasInternalLinkage())
assert(0 && "Invalid alias linkage");
-
- O << TAI->getSetDirective() << Name << ", " << Target << "\n";
+
+ if (I->hasHiddenVisibility()) {
+ if (const char *Directive = TAI->getHiddenDirective())
+ O << Directive << Name << "\n";
+ } else if (I->hasProtectedVisibility()) {
+ if (const char *Directive = TAI->getProtectedDirective())
+ O << Directive << Name << "\n";
+ }
+
+ O << TAI->getSetDirective() << ' ' << Name << ", " << Target << "\n";
// If the aliasee has external weak linkage it can be referenced only by
// alias itself. In this case it can be not in ExtWeakSymbols list. Emit
// weak reference in such case.
- if (GV->hasExternalWeakLinkage())
+ if (GV->hasExternalWeakLinkage()) {
if (TAI->getWeakRefDirective())
O << TAI->getWeakRefDirective() << Target << "\n";
else
O << "\t.globl\t" << Target << "\n";
+ }
}
}
+ CollectorModuleMetadata *CMM = getAnalysisToUpdate<CollectorModuleMetadata>();
+ assert(CMM && "AsmPrinter didn't require CollectorModuleMetadata?");
+ for (CollectorModuleMetadata::iterator I = CMM->end(),
+ E = CMM->begin(); I != E; )
+ (*--I)->finishAssembly(O, *this, *TAI);
+
+ // If we don't have any trampolines, then we don't require stack memory
+ // to be executable. Some targets have a directive to declare this.
+ Function* InitTrampolineIntrinsic = M.getFunction("llvm.init.trampoline");
+ if (!InitTrampolineIntrinsic || InitTrampolineIntrinsic->use_empty())
+ if (TAI->getNonexecutableStackDirective())
+ O << TAI->getNonexecutableStackDirective() << "\n";
+
delete Mang; Mang = 0;
return false;
}
std::string AsmPrinter::getCurrentFunctionEHName(const MachineFunction *MF) {
assert(MF && "No machine function?");
- return Mang->makeNameProper(MF->getFunction()->getName() + ".eh",
- TAI->getGlobalPrefix());
+ std::string Name = MF->getFunction()->getName();
+ if (Name.empty())
+ Name = Mang->getValueName(MF->getFunction());
+ return Mang->makeNameProper(Name + ".eh", TAI->getGlobalPrefix());
}
void AsmPrinter::SetupMachineFunction(MachineFunction &MF) {
O << TAI->getPrivateGlobalPrefix() << getFunctionNumber()
<< '_' << uid << "_set_" << MBB->getNumber();
} else {
- printBasicBlockLabel(MBB, false, false);
+ printBasicBlockLabel(MBB, false, false, false);
// If the arch uses custom Jump Table directives, don't calc relative to
// JT
if (!HadJTEntryDirective)
<< getFunctionNumber() << '_' << uid;
}
} else {
- printBasicBlockLabel(MBB, false, false);
+ printBasicBlockLabel(MBB, false, false, false);
}
}
// Align = std::max(Align, ForcedAlignBits);
//
void AsmPrinter::EmitAlignment(unsigned NumBits, const GlobalValue *GV,
- unsigned ForcedAlignBits, bool UseFillExpr,
- unsigned FillValue) const {
+ unsigned ForcedAlignBits,
+ bool UseFillExpr) const {
if (GV && GV->getAlignment())
NumBits = Log2_32(GV->getAlignment());
NumBits = std::max(NumBits, ForcedAlignBits);
if (NumBits == 0) return; // No need to emit alignment.
if (TAI->getAlignmentIsInBytes()) NumBits = 1 << NumBits;
O << TAI->getAlignDirective() << NumBits;
+
+ unsigned FillValue = TAI->getTextAlignFillValue();
+ UseFillExpr &= IsInTextSection && FillValue;
if (UseFillExpr) O << ",0x" << std::hex << FillValue << std::dec;
O << "\n";
}
// api needed to prevent premature destruction
APInt api = CFP->getValueAPF().convertToAPInt();
const uint64_t *p = api.getRawData();
+ APFloat DoubleVal = CFP->getValueAPF();
+ DoubleVal.convert(APFloat::IEEEdouble, APFloat::rmNearestTiesToEven);
if (TD->isBigEndian()) {
O << TAI->getData16bitsDirective() << uint16_t(p[0] >> 48)
<< "\t" << TAI->getCommentString()
- << " long double most significant halfword\n";
+ << " long double most significant halfword of ~"
+ << DoubleVal.convertToDouble() << "\n";
O << TAI->getData16bitsDirective() << uint16_t(p[0] >> 32)
<< "\t" << TAI->getCommentString()
<< " long double next halfword\n";
} else {
O << TAI->getData16bitsDirective() << uint16_t(p[1])
<< "\t" << TAI->getCommentString()
- << " long double least significant halfword\n";
+ << " long double least significant halfword of ~"
+ << DoubleVal.convertToDouble() << "\n";
O << TAI->getData16bitsDirective() << uint16_t(p[0])
<< "\t" << TAI->getCommentString()
<< " long double next halfword\n";
// Disassemble the AsmStr, printing out the literal pieces, the operands, etc.
const char *AsmStr = MI->getOperand(NumDefs).getSymbolName();
- // If this asmstr is empty, don't bother printing the #APP/#NOAPP markers.
+ // If this asmstr is empty, just print the #APP/#NOAPP markers.
+ // These are useful to see where empty asm's wound up.
if (AsmStr[0] == 0) {
- O << "\n"; // Tab already printed, avoid double indenting next instr.
+ O << TAI->getInlineAsmStart() << "\n\t" << TAI->getInlineAsmEnd() << "\n";
return;
}
if (Modifier[0]=='l') // labels are target independent
printBasicBlockLabel(MI->getOperand(OpNo).getMBB(),
- false, false);
+ false, false, false);
else {
AsmPrinter *AP = const_cast<AsmPrinter*>(this);
if ((OpFlags & 7) == 4 /*ADDR MODE*/) {
O << "\n\t" << TAI->getInlineAsmEnd() << "\n";
}
+/// printImplicitDef - This method prints the specified machine instruction
+/// that is an implicit def.
+void AsmPrinter::printImplicitDef(const MachineInstr *MI) const {
+ O << "\t" << TAI->getCommentString() << " implicit-def: "
+ << TRI->getAsmName(MI->getOperand(0).getReg()) << "\n";
+}
+
/// printLabel - This method prints a local label used by debug and
/// exception handling tables.
void AsmPrinter::printLabel(const MachineInstr *MI) const {
- O << "\n" << TAI->getPrivateGlobalPrefix()
+ O << TAI->getPrivateGlobalPrefix()
<< "label" << MI->getOperand(0).getImm() << ":\n";
}
+void AsmPrinter::printLabel(unsigned Id) const {
+ O << TAI->getPrivateGlobalPrefix() << "label" << Id << ":\n";
+}
+
+/// printDeclare - This method prints a local variable declaration used by
+/// debug tables.
+/// FIXME: It doesn't really print anything rather it inserts a DebugVariable
+/// entry into dwarf table.
+void AsmPrinter::printDeclare(const MachineInstr *MI) const {
+ int FI = MI->getOperand(0).getIndex();
+ GlobalValue *GV = MI->getOperand(1).getGlobal();
+ MMI->RecordVariable(GV, FI);
+}
+
/// PrintAsmOperand - Print the specified operand of MI, an INLINEASM
/// instruction, using the specified assembler variant. Targets should
/// overried this to format as appropriate.
/// printBasicBlockLabel - This method prints the label for the specified
/// MachineBasicBlock
void AsmPrinter::printBasicBlockLabel(const MachineBasicBlock *MBB,
+ bool printAlign,
bool printColon,
bool printComment) const {
+ if (printAlign) {
+ unsigned Align = MBB->getAlignment();
+ if (Align)
+ EmitAlignment(Log2_32(Align));
+ }
+
O << TAI->getPrivateGlobalPrefix() << "BB" << getFunctionNumber() << "_"
<< MBB->getNumber();
if (printColon)
O << TAI->getSetDirective() << ' ' << TAI->getPrivateGlobalPrefix()
<< getFunctionNumber() << '_' << uid << "_set_" << MBB->getNumber() << ',';
- printBasicBlockLabel(MBB, false, false);
+ printBasicBlockLabel(MBB, false, false, false);
O << '-' << TAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber()
<< '_' << uid << '\n';
}
O << TAI->getSetDirective() << ' ' << TAI->getPrivateGlobalPrefix()
<< getFunctionNumber() << '_' << uid << '_' << uid2
<< "_set_" << MBB->getNumber() << ',';
- printBasicBlockLabel(MBB, false, false);
+ printBasicBlockLabel(MBB, false, false, false);
O << '-' << TAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber()
<< '_' << uid << '_' << uid2 << '\n';
}
}
}
+void AsmPrinter::printSuffixedName(std::string &Name, const char* Suffix) {
+ if (Name[0]=='\"')
+ O << "\"" << TAI->getPrivateGlobalPrefix() <<
+ Name.substr(1, Name.length()-2) << Suffix << "\"";
+ else
+ O << TAI->getPrivateGlobalPrefix() << Name << Suffix;
+}
projects / oota-llvm.git / blobdiff