[llvm-commits] [llvm] r54887 - in /llvm/trunk/lib/Target/PowerPC: AsmPrinter/ AsmPrinter/Makefile AsmPrinter/PPCAsmPrinter.cpp Makefile PPCAsmPrinter.cpp PPCTargetMachine.cpp PPCTargetMachine.h
Anton Korobeynikov
asl at math.spbu.ru
Sun Aug 17 06:54:28 PDT 2008
Author: asl
Date: Sun Aug 17 08:54:28 2008
New Revision: 54887
URL: http://llvm.org/viewvc/llvm-project?rev=54887&view=rev
Log:
Factor out asmprinter out of ppc
Added:
llvm/trunk/lib/Target/PowerPC/AsmPrinter/
llvm/trunk/lib/Target/PowerPC/AsmPrinter/Makefile
llvm/trunk/lib/Target/PowerPC/AsmPrinter/PPCAsmPrinter.cpp
- copied, changed from r54886, llvm/trunk/lib/Target/PowerPC/PPCAsmPrinter.cpp
Removed:
llvm/trunk/lib/Target/PowerPC/PPCAsmPrinter.cpp
Modified:
llvm/trunk/lib/Target/PowerPC/Makefile
llvm/trunk/lib/Target/PowerPC/PPCTargetMachine.cpp
llvm/trunk/lib/Target/PowerPC/PPCTargetMachine.h
Added: llvm/trunk/lib/Target/PowerPC/AsmPrinter/Makefile
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/PowerPC/AsmPrinter/Makefile?rev=54887&view=auto
==============================================================================
--- llvm/trunk/lib/Target/PowerPC/AsmPrinter/Makefile (added)
+++ llvm/trunk/lib/Target/PowerPC/AsmPrinter/Makefile Sun Aug 17 08:54:28 2008
@@ -0,0 +1,15 @@
+##===- lib/Target/X86/Makefile -----------------------------*- Makefile -*-===##
+#
+# The LLVM Compiler Infrastructure
+#
+# This file is distributed under the University of Illinois Open Source
+# License. See LICENSE.TXT for details.
+#
+##===----------------------------------------------------------------------===##
+LEVEL = ../../../..
+LIBRARYNAME = LLVMPowerPCAsmPrinter
+
+# Hack: we need to include 'main' x86 target directory to grab private headers
+CPPFLAGS = -I$(PROJ_OBJ_DIR)/.. -I$(PROJ_SRC_DIR)/..
+
+include $(LEVEL)/Makefile.common
Copied: llvm/trunk/lib/Target/PowerPC/AsmPrinter/PPCAsmPrinter.cpp (from r54886, llvm/trunk/lib/Target/PowerPC/PPCAsmPrinter.cpp)
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/PowerPC/AsmPrinter/PPCAsmPrinter.cpp?p2=llvm/trunk/lib/Target/PowerPC/AsmPrinter/PPCAsmPrinter.cpp&p1=llvm/trunk/lib/Target/PowerPC/PPCAsmPrinter.cpp&r1=54886&r2=54887&rev=54887&view=diff
==============================================================================
--- llvm/trunk/lib/Target/PowerPC/PPCAsmPrinter.cpp (original)
+++ llvm/trunk/lib/Target/PowerPC/AsmPrinter/PPCAsmPrinter.cpp Sun Aug 17 08:54:28 2008
@@ -1117,3 +1117,11 @@
return new PPCLinuxAsmPrinter(o, tm, tm.getTargetAsmInfo());
}
}
+
+namespace {
+ static struct Register {
+ Register() {
+ PPCTargetMachine::registerAsmPrinter(createPPCAsmPrinterPass);
+ }
+ } Registrator;
+}
Modified: llvm/trunk/lib/Target/PowerPC/Makefile
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/PowerPC/Makefile?rev=54887&r1=54886&r2=54887&view=diff
==============================================================================
--- llvm/trunk/lib/Target/PowerPC/Makefile (original)
+++ llvm/trunk/lib/Target/PowerPC/Makefile Sun Aug 17 08:54:28 2008
@@ -7,7 +7,7 @@
#
##===----------------------------------------------------------------------===##
LEVEL = ../../..
-LIBRARYNAME = LLVMPowerPC
+LIBRARYNAME = LLVMPowerPCCodegen
TARGET = PPC
# Make sure that tblgen is run, first thing.
@@ -17,4 +17,6 @@
PPCGenInstrInfo.inc PPCGenDAGISel.inc \
PPCGenSubtarget.inc PPCGenCallingConv.inc
+DIRS = AsmPrinter
+
include $(LEVEL)/Makefile.common
Removed: llvm/trunk/lib/Target/PowerPC/PPCAsmPrinter.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/PowerPC/PPCAsmPrinter.cpp?rev=54886&view=auto
==============================================================================
--- llvm/trunk/lib/Target/PowerPC/PPCAsmPrinter.cpp (original)
+++ llvm/trunk/lib/Target/PowerPC/PPCAsmPrinter.cpp (removed)
@@ -1,1119 +0,0 @@
-//===-- PPCAsmPrinter.cpp - Print machine instrs to PowerPC assembly --------=//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file contains a printer that converts from our internal representation
-// of machine-dependent LLVM code to PowerPC assembly language. This printer is
-// the output mechanism used by `llc'.
-//
-// Documentation at http://developer.apple.com/documentation/DeveloperTools/
-// Reference/Assembler/ASMIntroduction/chapter_1_section_1.html
-//
-//===----------------------------------------------------------------------===//
-
-#define DEBUG_TYPE "asmprinter"
-#include "PPC.h"
-#include "PPCPredicates.h"
-#include "PPCTargetMachine.h"
-#include "PPCSubtarget.h"
-#include "llvm/Constants.h"
-#include "llvm/DerivedTypes.h"
-#include "llvm/Module.h"
-#include "llvm/Assembly/Writer.h"
-#include "llvm/CodeGen/AsmPrinter.h"
-#include "llvm/CodeGen/DwarfWriter.h"
-#include "llvm/CodeGen/MachineModuleInfo.h"
-#include "llvm/CodeGen/MachineFunctionPass.h"
-#include "llvm/CodeGen/MachineInstr.h"
-#include "llvm/CodeGen/MachineInstrBuilder.h"
-#include "llvm/Support/Mangler.h"
-#include "llvm/Support/MathExtras.h"
-#include "llvm/Support/CommandLine.h"
-#include "llvm/Support/Debug.h"
-#include "llvm/Support/Compiler.h"
-#include "llvm/Target/TargetAsmInfo.h"
-#include "llvm/Target/TargetRegisterInfo.h"
-#include "llvm/Target/TargetInstrInfo.h"
-#include "llvm/Target/TargetOptions.h"
-#include "llvm/ADT/Statistic.h"
-#include "llvm/ADT/StringExtras.h"
-#include <set>
-using namespace llvm;
-
-STATISTIC(EmittedInsts, "Number of machine instrs printed");
-
-namespace {
- struct VISIBILITY_HIDDEN PPCAsmPrinter : public AsmPrinter {
- std::set<std::string> FnStubs, GVStubs;
- const PPCSubtarget &Subtarget;
-
- PPCAsmPrinter(std::ostream &O, TargetMachine &TM, const TargetAsmInfo *T)
- : AsmPrinter(O, TM, T), Subtarget(TM.getSubtarget<PPCSubtarget>()) {
- }
-
- virtual const char *getPassName() const {
- return "PowerPC Assembly Printer";
- }
-
- PPCTargetMachine &getTM() {
- return static_cast<PPCTargetMachine&>(TM);
- }
-
- unsigned enumRegToMachineReg(unsigned enumReg) {
- switch (enumReg) {
- default: assert(0 && "Unhandled register!"); break;
- case PPC::CR0: return 0;
- case PPC::CR1: return 1;
- case PPC::CR2: return 2;
- case PPC::CR3: return 3;
- case PPC::CR4: return 4;
- case PPC::CR5: return 5;
- case PPC::CR6: return 6;
- case PPC::CR7: return 7;
- }
- abort();
- }
-
- /// printInstruction - This method is automatically generated by tablegen
- /// from the instruction set description. This method returns true if the
- /// machine instruction was sufficiently described to print it, otherwise it
- /// returns false.
- bool printInstruction(const MachineInstr *MI);
-
- void printMachineInstruction(const MachineInstr *MI);
- void printOp(const MachineOperand &MO);
-
- /// stripRegisterPrefix - This method strips the character prefix from a
- /// register name so that only the number is left. Used by for linux asm.
- const char *stripRegisterPrefix(const char *RegName) {
- switch (RegName[0]) {
- case 'r':
- case 'f':
- case 'v': return RegName + 1;
- case 'c': if (RegName[1] == 'r') return RegName + 2;
- }
-
- return RegName;
- }
-
- /// printRegister - Print register according to target requirements.
- ///
- void printRegister(const MachineOperand &MO, bool R0AsZero) {
- unsigned RegNo = MO.getReg();
- assert(TargetRegisterInfo::isPhysicalRegister(RegNo) && "Not physreg??");
-
- // If we should use 0 for R0.
- if (R0AsZero && RegNo == PPC::R0) {
- O << "0";
- return;
- }
-
- const char *RegName = TM.getRegisterInfo()->get(RegNo).AsmName;
- // Linux assembler (Others?) does not take register mnemonics.
- // FIXME - What about special registers used in mfspr/mtspr?
- if (!Subtarget.isDarwin()) RegName = stripRegisterPrefix(RegName);
- O << RegName;
- }
-
- void printOperand(const MachineInstr *MI, unsigned OpNo) {
- const MachineOperand &MO = MI->getOperand(OpNo);
- if (MO.isRegister()) {
- printRegister(MO, false);
- } else if (MO.isImmediate()) {
- O << MO.getImm();
- } else {
- printOp(MO);
- }
- }
-
- bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
- unsigned AsmVariant, const char *ExtraCode);
- bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNo,
- unsigned AsmVariant, const char *ExtraCode);
-
-
- void printS5ImmOperand(const MachineInstr *MI, unsigned OpNo) {
- char value = MI->getOperand(OpNo).getImm();
- value = (value << (32-5)) >> (32-5);
- O << (int)value;
- }
- void printU5ImmOperand(const MachineInstr *MI, unsigned OpNo) {
- unsigned char value = MI->getOperand(OpNo).getImm();
- assert(value <= 31 && "Invalid u5imm argument!");
- O << (unsigned int)value;
- }
- void printU6ImmOperand(const MachineInstr *MI, unsigned OpNo) {
- unsigned char value = MI->getOperand(OpNo).getImm();
- assert(value <= 63 && "Invalid u6imm argument!");
- O << (unsigned int)value;
- }
- void printS16ImmOperand(const MachineInstr *MI, unsigned OpNo) {
- O << (short)MI->getOperand(OpNo).getImm();
- }
- void printU16ImmOperand(const MachineInstr *MI, unsigned OpNo) {
- O << (unsigned short)MI->getOperand(OpNo).getImm();
- }
- void printS16X4ImmOperand(const MachineInstr *MI, unsigned OpNo) {
- if (MI->getOperand(OpNo).isImmediate()) {
- O << (short)(MI->getOperand(OpNo).getImm()*4);
- } else {
- O << "lo16(";
- printOp(MI->getOperand(OpNo));
- if (TM.getRelocationModel() == Reloc::PIC_)
- O << "-\"L" << getFunctionNumber() << "$pb\")";
- else
- O << ')';
- }
- }
- void printBranchOperand(const MachineInstr *MI, unsigned OpNo) {
- // Branches can take an immediate operand. This is used by the branch
- // selection pass to print $+8, an eight byte displacement from the PC.
- if (MI->getOperand(OpNo).isImmediate()) {
- O << "$+" << MI->getOperand(OpNo).getImm()*4;
- } else {
- printOp(MI->getOperand(OpNo));
- }
- }
- void printCallOperand(const MachineInstr *MI, unsigned OpNo) {
- const MachineOperand &MO = MI->getOperand(OpNo);
- if (TM.getRelocationModel() != Reloc::Static) {
- if (MO.getType() == MachineOperand::MO_GlobalAddress) {
- GlobalValue *GV = MO.getGlobal();
- if (((GV->isDeclaration() || GV->hasWeakLinkage() ||
- GV->hasLinkOnceLinkage() || GV->hasCommonLinkage()))) {
- // Dynamically-resolved functions need a stub for the function.
- std::string Name = Mang->getValueName(GV);
- FnStubs.insert(Name);
- printSuffixedName(Name, "$stub");
- if (GV->hasExternalWeakLinkage())
- ExtWeakSymbols.insert(GV);
- return;
- }
- }
- if (MO.getType() == MachineOperand::MO_ExternalSymbol) {
- std::string Name(TAI->getGlobalPrefix()); Name += MO.getSymbolName();
- FnStubs.insert(Name);
- printSuffixedName(Name, "$stub");
- return;
- }
- }
-
- printOp(MI->getOperand(OpNo));
- }
- void printAbsAddrOperand(const MachineInstr *MI, unsigned OpNo) {
- O << (int)MI->getOperand(OpNo).getImm()*4;
- }
- void printPICLabel(const MachineInstr *MI, unsigned OpNo) {
- O << "\"L" << getFunctionNumber() << "$pb\"\n";
- O << "\"L" << getFunctionNumber() << "$pb\":";
- }
- void printSymbolHi(const MachineInstr *MI, unsigned OpNo) {
- if (MI->getOperand(OpNo).isImmediate()) {
- printS16ImmOperand(MI, OpNo);
- } else {
- if (Subtarget.isDarwin()) O << "ha16(";
- printOp(MI->getOperand(OpNo));
- if (TM.getRelocationModel() == Reloc::PIC_)
- O << "-\"L" << getFunctionNumber() << "$pb\"";
- if (Subtarget.isDarwin())
- O << ')';
- else
- O << "@ha";
- }
- }
- void printSymbolLo(const MachineInstr *MI, unsigned OpNo) {
- if (MI->getOperand(OpNo).isImmediate()) {
- printS16ImmOperand(MI, OpNo);
- } else {
- if (Subtarget.isDarwin()) O << "lo16(";
- printOp(MI->getOperand(OpNo));
- if (TM.getRelocationModel() == Reloc::PIC_)
- O << "-\"L" << getFunctionNumber() << "$pb\"";
- if (Subtarget.isDarwin())
- O << ')';
- else
- O << "@l";
- }
- }
- void printcrbitm(const MachineInstr *MI, unsigned OpNo) {
- unsigned CCReg = MI->getOperand(OpNo).getReg();
- unsigned RegNo = enumRegToMachineReg(CCReg);
- O << (0x80 >> RegNo);
- }
- // The new addressing mode printers.
- void printMemRegImm(const MachineInstr *MI, unsigned OpNo) {
- printSymbolLo(MI, OpNo);
- O << '(';
- if (MI->getOperand(OpNo+1).isRegister() &&
- MI->getOperand(OpNo+1).getReg() == PPC::R0)
- O << "0";
- else
- printOperand(MI, OpNo+1);
- O << ')';
- }
- void printMemRegImmShifted(const MachineInstr *MI, unsigned OpNo) {
- if (MI->getOperand(OpNo).isImmediate())
- printS16X4ImmOperand(MI, OpNo);
- else
- printSymbolLo(MI, OpNo);
- O << '(';
- if (MI->getOperand(OpNo+1).isRegister() &&
- MI->getOperand(OpNo+1).getReg() == PPC::R0)
- O << "0";
- else
- printOperand(MI, OpNo+1);
- O << ')';
- }
-
- void printMemRegReg(const MachineInstr *MI, unsigned OpNo) {
- // When used as the base register, r0 reads constant zero rather than
- // the value contained in the register. For this reason, the darwin
- // assembler requires that we print r0 as 0 (no r) when used as the base.
- const MachineOperand &MO = MI->getOperand(OpNo);
- printRegister(MO, true);
- O << ", ";
- printOperand(MI, OpNo+1);
- }
-
- void printPredicateOperand(const MachineInstr *MI, unsigned OpNo,
- const char *Modifier);
-
- virtual bool runOnMachineFunction(MachineFunction &F) = 0;
- virtual bool doFinalization(Module &M) = 0;
-
- virtual void EmitExternalGlobal(const GlobalVariable *GV);
- };
-
- /// PPCLinuxAsmPrinter - PowerPC assembly printer, customized for Linux
- struct VISIBILITY_HIDDEN PPCLinuxAsmPrinter : public PPCAsmPrinter {
-
- DwarfWriter DW;
- MachineModuleInfo *MMI;
-
- PPCLinuxAsmPrinter(std::ostream &O, PPCTargetMachine &TM,
- const TargetAsmInfo *T)
- : PPCAsmPrinter(O, TM, T), DW(O, this, T), MMI(0) {
- }
-
- virtual const char *getPassName() const {
- return "Linux PPC Assembly Printer";
- }
-
- bool runOnMachineFunction(MachineFunction &F);
- bool doInitialization(Module &M);
- bool doFinalization(Module &M);
-
- void getAnalysisUsage(AnalysisUsage &AU) const {
- AU.setPreservesAll();
- AU.addRequired<MachineModuleInfo>();
- PPCAsmPrinter::getAnalysisUsage(AU);
- }
-
- /// getSectionForFunction - Return the section that we should emit the
- /// specified function body into.
- virtual std::string getSectionForFunction(const Function &F) const;
- void printModuleLevelGV(const GlobalVariable* GVar);
- };
-
- /// PPCDarwinAsmPrinter - PowerPC assembly printer, customized for Darwin/Mac
- /// OS X
- struct VISIBILITY_HIDDEN PPCDarwinAsmPrinter : public PPCAsmPrinter {
-
- DwarfWriter DW;
- MachineModuleInfo *MMI;
-
- PPCDarwinAsmPrinter(std::ostream &O, PPCTargetMachine &TM,
- const TargetAsmInfo *T)
- : PPCAsmPrinter(O, TM, T), DW(O, this, T), MMI(0) {
- }
-
- virtual const char *getPassName() const {
- return "Darwin PPC Assembly Printer";
- }
-
- bool runOnMachineFunction(MachineFunction &F);
- bool doInitialization(Module &M);
- bool doFinalization(Module &M);
-
- void getAnalysisUsage(AnalysisUsage &AU) const {
- AU.setPreservesAll();
- AU.addRequired<MachineModuleInfo>();
- PPCAsmPrinter::getAnalysisUsage(AU);
- }
-
- /// getSectionForFunction - Return the section that we should emit the
- /// specified function body into.
- virtual std::string getSectionForFunction(const Function &F) const;
- void printModuleLevelGV(const GlobalVariable* GVar);
- };
-} // end of anonymous namespace
-
-// Include the auto-generated portion of the assembly writer
-#include "PPCGenAsmWriter.inc"
-
-void PPCAsmPrinter::printOp(const MachineOperand &MO) {
- switch (MO.getType()) {
- case MachineOperand::MO_Immediate:
- cerr << "printOp() does not handle immediate values\n";
- abort();
- return;
-
- case MachineOperand::MO_MachineBasicBlock:
- printBasicBlockLabel(MO.getMBB());
- return;
- case MachineOperand::MO_JumpTableIndex:
- O << TAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber()
- << '_' << MO.getIndex();
- // FIXME: PIC relocation model
- return;
- case MachineOperand::MO_ConstantPoolIndex:
- O << TAI->getPrivateGlobalPrefix() << "CPI" << getFunctionNumber()
- << '_' << MO.getIndex();
- return;
- case MachineOperand::MO_ExternalSymbol:
- // Computing the address of an external symbol, not calling it.
- if (TM.getRelocationModel() != Reloc::Static) {
- std::string Name(TAI->getGlobalPrefix()); Name += MO.getSymbolName();
- GVStubs.insert(Name);
- printSuffixedName(Name, "$non_lazy_ptr");
- return;
- }
- O << TAI->getGlobalPrefix() << MO.getSymbolName();
- return;
- case MachineOperand::MO_GlobalAddress: {
- // Computing the address of a global symbol, not calling it.
- GlobalValue *GV = MO.getGlobal();
- std::string Name = Mang->getValueName(GV);
-
- // External or weakly linked global variables need non-lazily-resolved stubs
- if (TM.getRelocationModel() != Reloc::Static) {
- if (((GV->isDeclaration() || GV->hasWeakLinkage() ||
- GV->hasLinkOnceLinkage() || GV->hasCommonLinkage()))) {
- GVStubs.insert(Name);
- printSuffixedName(Name, "$non_lazy_ptr");
- if (GV->hasExternalWeakLinkage())
- ExtWeakSymbols.insert(GV);
- return;
- }
- }
- O << Name;
-
- if (MO.getOffset() > 0)
- O << "+" << MO.getOffset();
- else if (MO.getOffset() < 0)
- O << MO.getOffset();
-
- if (GV->hasExternalWeakLinkage())
- ExtWeakSymbols.insert(GV);
- return;
- }
-
- default:
- O << "<unknown operand type: " << MO.getType() << ">";
- return;
- }
-}
-
-/// EmitExternalGlobal - In this case we need to use the indirect symbol.
-///
-void PPCAsmPrinter::EmitExternalGlobal(const GlobalVariable *GV) {
- std::string Name = getGlobalLinkName(GV);
- if (TM.getRelocationModel() != Reloc::Static) {
- GVStubs.insert(Name);
- printSuffixedName(Name, "$non_lazy_ptr");
- return;
- }
- O << Name;
-}
-
-/// PrintAsmOperand - Print out an operand for an inline asm expression.
-///
-bool PPCAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
- unsigned AsmVariant,
- const char *ExtraCode) {
- // Does this asm operand have a single letter operand modifier?
- if (ExtraCode && ExtraCode[0]) {
- if (ExtraCode[1] != 0) return true; // Unknown modifier.
-
- switch (ExtraCode[0]) {
- default: return true; // Unknown modifier.
- case 'c': // Don't print "$" before a global var name or constant.
- // PPC never has a prefix.
- printOperand(MI, OpNo);
- return false;
- case 'L': // Write second word of DImode reference.
- // Verify that this operand has two consecutive registers.
- if (!MI->getOperand(OpNo).isRegister() ||
- OpNo+1 == MI->getNumOperands() ||
- !MI->getOperand(OpNo+1).isRegister())
- return true;
- ++OpNo; // Return the high-part.
- break;
- case 'I':
- // Write 'i' if an integer constant, otherwise nothing. Used to print
- // addi vs add, etc.
- if (MI->getOperand(OpNo).isImmediate())
- O << "i";
- return false;
- }
- }
-
- printOperand(MI, OpNo);
- return false;
-}
-
-bool PPCAsmPrinter::PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNo,
- unsigned AsmVariant,
- const char *ExtraCode) {
- if (ExtraCode && ExtraCode[0])
- return true; // Unknown modifier.
- if (MI->getOperand(OpNo).isRegister())
- printMemRegReg(MI, OpNo);
- else
- printMemRegImm(MI, OpNo);
- return false;
-}
-
-void PPCAsmPrinter::printPredicateOperand(const MachineInstr *MI, unsigned OpNo,
- const char *Modifier) {
- assert(Modifier && "Must specify 'cc' or 'reg' as predicate op modifier!");
- unsigned Code = MI->getOperand(OpNo).getImm();
- if (!strcmp(Modifier, "cc")) {
- switch ((PPC::Predicate)Code) {
- case PPC::PRED_ALWAYS: return; // Don't print anything for always.
- case PPC::PRED_LT: O << "lt"; return;
- case PPC::PRED_LE: O << "le"; return;
- case PPC::PRED_EQ: O << "eq"; return;
- case PPC::PRED_GE: O << "ge"; return;
- case PPC::PRED_GT: O << "gt"; return;
- case PPC::PRED_NE: O << "ne"; return;
- case PPC::PRED_UN: O << "un"; return;
- case PPC::PRED_NU: O << "nu"; return;
- }
-
- } else {
- assert(!strcmp(Modifier, "reg") &&
- "Need to specify 'cc' or 'reg' as predicate op modifier!");
- // Don't print the register for 'always'.
- if (Code == PPC::PRED_ALWAYS) return;
- printOperand(MI, OpNo+1);
- }
-}
-
-
-/// printMachineInstruction -- Print out a single PowerPC MI in Darwin syntax to
-/// the current output stream.
-///
-void PPCAsmPrinter::printMachineInstruction(const MachineInstr *MI) {
- ++EmittedInsts;
-
- // Check for slwi/srwi mnemonics.
- if (MI->getOpcode() == PPC::RLWINM) {
- bool FoundMnemonic = false;
- unsigned char SH = MI->getOperand(2).getImm();
- unsigned char MB = MI->getOperand(3).getImm();
- unsigned char ME = MI->getOperand(4).getImm();
- if (SH <= 31 && MB == 0 && ME == (31-SH)) {
- O << "\tslwi "; FoundMnemonic = true;
- }
- if (SH <= 31 && MB == (32-SH) && ME == 31) {
- O << "\tsrwi "; FoundMnemonic = true;
- SH = 32-SH;
- }
- if (FoundMnemonic) {
- printOperand(MI, 0);
- O << ", ";
- printOperand(MI, 1);
- O << ", " << (unsigned int)SH << '\n';
- return;
- }
- } else if (MI->getOpcode() == PPC::OR || MI->getOpcode() == PPC::OR8) {
- if (MI->getOperand(1).getReg() == MI->getOperand(2).getReg()) {
- O << "\tmr ";
- printOperand(MI, 0);
- O << ", ";
- printOperand(MI, 1);
- O << '\n';
- return;
- }
- } else if (MI->getOpcode() == PPC::RLDICR) {
- unsigned char SH = MI->getOperand(2).getImm();
- unsigned char ME = MI->getOperand(3).getImm();
- // rldicr RA, RS, SH, 63-SH == sldi RA, RS, SH
- if (63-SH == ME) {
- O << "\tsldi ";
- printOperand(MI, 0);
- O << ", ";
- printOperand(MI, 1);
- O << ", " << (unsigned int)SH << '\n';
- return;
- }
- }
-
- if (printInstruction(MI))
- return; // Printer was automatically generated
-
- assert(0 && "Unhandled instruction in asm writer!");
- abort();
- return;
-}
-
-/// runOnMachineFunction - This uses the printMachineInstruction()
-/// method to print assembly for each instruction.
-///
-bool PPCLinuxAsmPrinter::runOnMachineFunction(MachineFunction &MF) {
-
- SetupMachineFunction(MF);
- O << "\n\n";
-
- // Print out constants referenced by the function
- EmitConstantPool(MF.getConstantPool());
-
- // Print out labels for the function.
- const Function *F = MF.getFunction();
- SwitchToTextSection(getSectionForFunction(*F).c_str(), F);
-
- switch (F->getLinkage()) {
- default: assert(0 && "Unknown linkage type!");
- case Function::InternalLinkage: // Symbols default to internal.
- break;
- case Function::ExternalLinkage:
- O << "\t.global\t" << CurrentFnName << '\n'
- << "\t.type\t" << CurrentFnName << ", @function\n";
- break;
- case Function::WeakLinkage:
- case Function::LinkOnceLinkage:
- O << "\t.global\t" << CurrentFnName << '\n';
- O << "\t.weak\t" << CurrentFnName << '\n';
- break;
- }
-
- printVisibility(CurrentFnName, F->getVisibility());
-
- EmitAlignment(2, F);
- O << CurrentFnName << ":\n";
-
- // Emit pre-function debug information.
- DW.BeginFunction(&MF);
-
- // Print out code for the function.
- for (MachineFunction::const_iterator I = MF.begin(), E = MF.end();
- I != E; ++I) {
- // Print a label for the basic block.
- if (I != MF.begin()) {
- printBasicBlockLabel(I, true, true);
- O << '\n';
- }
- for (MachineBasicBlock::const_iterator II = I->begin(), E = I->end();
- II != E; ++II) {
- // Print the assembly for the instruction.
- printMachineInstruction(II);
- }
- }
-
- O << "\t.size\t" << CurrentFnName << ",.-" << CurrentFnName << '\n';
-
- // Print out jump tables referenced by the function.
- EmitJumpTableInfo(MF.getJumpTableInfo(), MF);
-
- // Emit post-function debug information.
- DW.EndFunction();
-
- // We didn't modify anything.
- return false;
-}
-
-bool PPCLinuxAsmPrinter::doInitialization(Module &M) {
- bool Result = AsmPrinter::doInitialization(M);
-
- // Emit initial debug information.
- DW.BeginModule(&M);
-
- // AsmPrinter::doInitialization should have done this analysis.
- MMI = getAnalysisToUpdate<MachineModuleInfo>();
- assert(MMI);
- DW.SetModuleInfo(MMI);
-
- // GNU as handles section names wrapped in quotes
- Mang->setUseQuotes(true);
-
- SwitchToTextSection(TAI->getTextSection());
-
- return Result;
-}
-
-/// PrintUnmangledNameSafely - Print out the printable characters in the name.
-/// Don't print things like \n or \0.
-static void PrintUnmangledNameSafely(const Value *V, std::ostream &OS) {
- for (const char *Name = V->getNameStart(), *E = Name+V->getNameLen();
- Name != E; ++Name)
- if (isprint(*Name))
- OS << *Name;
-}
-
-void PPCLinuxAsmPrinter::printModuleLevelGV(const GlobalVariable* GVar) {
- const TargetData *TD = TM.getTargetData();
-
- if (!GVar->hasInitializer())
- return; // External global require no code
-
- // Check to see if this is a special global used by LLVM, if so, emit it.
- if (EmitSpecialLLVMGlobal(GVar))
- return;
-
- std::string name = Mang->getValueName(GVar);
- std::string SectionName = TAI->SectionForGlobal(GVar);
-
- printVisibility(name, GVar->getVisibility());
-
- Constant *C = GVar->getInitializer();
- const Type *Type = C->getType();
- unsigned Size = TD->getABITypeSize(Type);
- unsigned Align = TD->getPreferredAlignmentLog(GVar);
-
- SwitchToDataSection(SectionName.c_str());
-
- if (C->isNullValue() && /* FIXME: Verify correct */
- !GVar->hasSection() &&
- (GVar->hasInternalLinkage() || GVar->hasExternalLinkage() ||
- GVar->isWeakForLinker())) {
- if (Size == 0) Size = 1; // .comm Foo, 0 is undefined, avoid it.
-
- if (GVar->hasExternalLinkage()) {
- O << "\t.global " << name << '\n';
- O << "\t.type " << name << ", @object\n";
- O << name << ":\n";
- O << "\t.zero " << Size << '\n';
- } else if (GVar->hasInternalLinkage()) {
- O << TAI->getLCOMMDirective() << name << ',' << Size;
- } else {
- O << ".comm " << name << ',' << Size;
- }
- O << "\t\t" << TAI->getCommentString() << " '";
- PrintUnmangledNameSafely(GVar, O);
- O << "'\n";
- return;
- }
-
- switch (GVar->getLinkage()) {
- case GlobalValue::LinkOnceLinkage:
- case GlobalValue::WeakLinkage:
- case GlobalValue::CommonLinkage:
- O << "\t.global " << name << '\n'
- << "\t.type " << name << ", @object\n"
- << "\t.weak " << name << '\n';
- break;
- case GlobalValue::AppendingLinkage:
- // FIXME: appending linkage variables should go into a section of
- // their name or something. For now, just emit them as external.
- case GlobalValue::ExternalLinkage:
- // If external or appending, declare as a global symbol
- O << "\t.global " << name << '\n'
- << "\t.type " << name << ", @object\n";
- // FALL THROUGH
- case GlobalValue::InternalLinkage:
- break;
- default:
- cerr << "Unknown linkage type!";
- abort();
- }
-
- EmitAlignment(Align, GVar);
- O << name << ":\t\t\t\t" << TAI->getCommentString() << " '";
- PrintUnmangledNameSafely(GVar, O);
- O << "'\n";
-
- // If the initializer is a extern weak symbol, remember to emit the weak
- // reference!
- if (const GlobalValue *GV = dyn_cast<GlobalValue>(C))
- if (GV->hasExternalWeakLinkage())
- ExtWeakSymbols.insert(GV);
-
- EmitGlobalConstant(C);
- O << '\n';
-}
-
-bool PPCLinuxAsmPrinter::doFinalization(Module &M) {
- // Print out module-level global variables here.
- for (Module::const_global_iterator I = M.global_begin(), E = M.global_end();
- I != E; ++I)
- printModuleLevelGV(I);
-
- // TODO
-
- // Emit initial debug information.
- DW.EndModule();
-
- return AsmPrinter::doFinalization(M);
-}
-
-std::string PPCLinuxAsmPrinter::getSectionForFunction(const Function &F) const {
- return TAI->SectionForGlobal(&F);
-}
-
-std::string PPCDarwinAsmPrinter::getSectionForFunction(const Function &F) const {
- return TAI->SectionForGlobal(&F);
-}
-
-/// runOnMachineFunction - This uses the printMachineInstruction()
-/// method to print assembly for each instruction.
-///
-bool PPCDarwinAsmPrinter::runOnMachineFunction(MachineFunction &MF) {
- SetupMachineFunction(MF);
- O << "\n\n";
-
- // Print out constants referenced by the function
- EmitConstantPool(MF.getConstantPool());
-
- // Print out labels for the function.
- const Function *F = MF.getFunction();
- SwitchToTextSection(getSectionForFunction(*F).c_str(), F);
-
- switch (F->getLinkage()) {
- default: assert(0 && "Unknown linkage type!");
- case Function::InternalLinkage: // Symbols default to internal.
- break;
- case Function::ExternalLinkage:
- O << "\t.globl\t" << CurrentFnName << '\n';
- break;
- case Function::WeakLinkage:
- case Function::LinkOnceLinkage:
- O << "\t.globl\t" << CurrentFnName << '\n';
- O << "\t.weak_definition\t" << CurrentFnName << '\n';
- break;
- }
-
- printVisibility(CurrentFnName, F->getVisibility());
-
- EmitAlignment(OptimizeForSize ? 2 : 4, F);
- O << CurrentFnName << ":\n";
-
- // Emit pre-function debug information.
- DW.BeginFunction(&MF);
-
- // If the function is empty, then we need to emit *something*. Otherwise, the
- // function's label might be associated with something that it wasn't meant to
- // be associated with. We emit a noop in this situation.
- MachineFunction::iterator I = MF.begin();
-
- if (++I == MF.end() && MF.front().empty())
- O << "\tnop\n";
-
- // Print out code for the function.
- for (MachineFunction::const_iterator I = MF.begin(), E = MF.end();
- I != E; ++I) {
- // Print a label for the basic block.
- if (I != MF.begin()) {
- printBasicBlockLabel(I, true, true);
- O << '\n';
- }
- for (MachineBasicBlock::const_iterator II = I->begin(), IE = I->end();
- II != IE; ++II) {
- // Print the assembly for the instruction.
- printMachineInstruction(II);
- }
- }
-
- // Print out jump tables referenced by the function.
- EmitJumpTableInfo(MF.getJumpTableInfo(), MF);
-
- // Emit post-function debug information.
- DW.EndFunction();
-
- // We didn't modify anything.
- return false;
-}
-
-
-bool PPCDarwinAsmPrinter::doInitialization(Module &M) {
- static const char *const CPUDirectives[] = {
- "",
- "ppc",
- "ppc601",
- "ppc602",
- "ppc603",
- "ppc7400",
- "ppc750",
- "ppc970",
- "ppc64"
- };
-
- unsigned Directive = Subtarget.getDarwinDirective();
- if (Subtarget.isGigaProcessor() && Directive < PPC::DIR_970)
- Directive = PPC::DIR_970;
- if (Subtarget.hasAltivec() && Directive < PPC::DIR_7400)
- Directive = PPC::DIR_7400;
- if (Subtarget.isPPC64() && Directive < PPC::DIR_970)
- Directive = PPC::DIR_64;
- assert(Directive <= PPC::DIR_64 && "Directive out of range.");
- O << "\t.machine " << CPUDirectives[Directive] << '\n';
-
- bool Result = AsmPrinter::doInitialization(M);
-
- // Emit initial debug information.
- DW.BeginModule(&M);
-
- // We need this for Personality functions.
- // AsmPrinter::doInitialization should have done this analysis.
- MMI = getAnalysisToUpdate<MachineModuleInfo>();
- assert(MMI);
- DW.SetModuleInfo(MMI);
-
- // Darwin wants symbols to be quoted if they have complex names.
- Mang->setUseQuotes(true);
-
- // Prime text sections so they are adjacent. This reduces the likelihood a
- // large data or debug section causes a branch to exceed 16M limit.
- SwitchToTextSection("\t.section __TEXT,__textcoal_nt,coalesced,"
- "pure_instructions");
- if (TM.getRelocationModel() == Reloc::PIC_) {
- SwitchToTextSection("\t.section __TEXT,__picsymbolstub1,symbol_stubs,"
- "pure_instructions,32");
- } else if (TM.getRelocationModel() == Reloc::DynamicNoPIC) {
- SwitchToTextSection("\t.section __TEXT,__symbol_stub1,symbol_stubs,"
- "pure_instructions,16");
- }
- SwitchToTextSection(TAI->getTextSection());
-
- return Result;
-}
-
-void PPCDarwinAsmPrinter::printModuleLevelGV(const GlobalVariable* GVar) {
- const TargetData *TD = TM.getTargetData();
-
- if (!GVar->hasInitializer())
- return; // External global require no code
-
- // Check to see if this is a special global used by LLVM, if so, emit it.
- if (EmitSpecialLLVMGlobal(GVar)) {
- if (TM.getRelocationModel() == Reloc::Static) {
- if (GVar->getName() == "llvm.global_ctors")
- O << ".reference .constructors_used\n";
- else if (GVar->getName() == "llvm.global_dtors")
- O << ".reference .destructors_used\n";
- }
- return;
- }
-
- std::string name = Mang->getValueName(GVar);
- std::string SectionName = TAI->SectionForGlobal(GVar);
-
- printVisibility(name, GVar->getVisibility());
-
- Constant *C = GVar->getInitializer();
- const Type *Type = C->getType();
- unsigned Size = TD->getABITypeSize(Type);
- unsigned Align = TD->getPreferredAlignmentLog(GVar);
-
- SwitchToDataSection(SectionName.c_str());
-
- if (C->isNullValue() && /* FIXME: Verify correct */
- !GVar->hasSection() &&
- (GVar->hasInternalLinkage() || GVar->hasExternalLinkage() ||
- GVar->isWeakForLinker())) {
- if (Size == 0) Size = 1; // .comm Foo, 0 is undefined, avoid it.
-
- if (GVar->hasExternalLinkage()) {
- O << "\t.globl " << name << '\n';
- O << "\t.zerofill __DATA, __common, " << name << ", "
- << Size << ", " << Align;
- } else if (GVar->hasInternalLinkage()) {
- O << TAI->getLCOMMDirective() << name << ',' << Size << ',' << Align;
- } else if (!GVar->hasCommonLinkage()) {
- O << "\t.globl " << name << '\n'
- << TAI->getWeakDefDirective() << name << '\n';
- EmitAlignment(Align, GVar);
- O << name << ":\t\t\t\t" << TAI->getCommentString() << " ";
- PrintUnmangledNameSafely(GVar, O);
- O << '\n';
- EmitGlobalConstant(C);
- return;
- } else {
- O << ".comm " << name << ',' << Size;
- // Darwin 9 and above support aligned common data.
- if (Subtarget.isDarwin9())
- O << ',' << Align;
- }
- O << "\t\t" << TAI->getCommentString() << " '";
- PrintUnmangledNameSafely(GVar, O);
- O << "'\n";
- return;
- }
-
- switch (GVar->getLinkage()) {
- case GlobalValue::LinkOnceLinkage:
- case GlobalValue::WeakLinkage:
- case GlobalValue::CommonLinkage:
- O << "\t.globl " << name << '\n'
- << "\t.weak_definition " << name << '\n';
- break;
- case GlobalValue::AppendingLinkage:
- // FIXME: appending linkage variables should go into a section of
- // their name or something. For now, just emit them as external.
- case GlobalValue::ExternalLinkage:
- // If external or appending, declare as a global symbol
- O << "\t.globl " << name << '\n';
- // FALL THROUGH
- case GlobalValue::InternalLinkage:
- break;
- default:
- cerr << "Unknown linkage type!";
- abort();
- }
-
- EmitAlignment(Align, GVar);
- O << name << ":\t\t\t\t" << TAI->getCommentString() << " '";
- PrintUnmangledNameSafely(GVar, O);
- O << "'\n";
-
- // If the initializer is a extern weak symbol, remember to emit the weak
- // reference!
- if (const GlobalValue *GV = dyn_cast<GlobalValue>(C))
- if (GV->hasExternalWeakLinkage())
- ExtWeakSymbols.insert(GV);
-
- EmitGlobalConstant(C);
- O << '\n';
-}
-
-bool PPCDarwinAsmPrinter::doFinalization(Module &M) {
- const TargetData *TD = TM.getTargetData();
-
- // Print out module-level global variables here.
- for (Module::const_global_iterator I = M.global_begin(), E = M.global_end();
- I != E; ++I)
- printModuleLevelGV(I);
-
- bool isPPC64 = TD->getPointerSizeInBits() == 64;
-
- // Output stubs for dynamically-linked functions
- if (TM.getRelocationModel() == Reloc::PIC_) {
- for (std::set<std::string>::iterator i = FnStubs.begin(), e = FnStubs.end();
- i != e; ++i) {
- SwitchToTextSection("\t.section __TEXT,__picsymbolstub1,symbol_stubs,"
- "pure_instructions,32");
- EmitAlignment(4);
- std::string p = *i;
- std::string L0p = (p[0]=='\"') ? "\"L0$" + p.substr(1) : "L0$" + p ;
- printSuffixedName(p, "$stub");
- O << ":\n";
- O << "\t.indirect_symbol " << *i << '\n';
- O << "\tmflr r0\n";
- O << "\tbcl 20,31," << L0p << '\n';
- O << L0p << ":\n";
- O << "\tmflr r11\n";
- O << "\taddis r11,r11,ha16(";
- printSuffixedName(p, "$lazy_ptr");
- O << "-" << L0p << ")\n";
- O << "\tmtlr r0\n";
- if (isPPC64)
- O << "\tldu r12,lo16(";
- else
- O << "\tlwzu r12,lo16(";
- printSuffixedName(p, "$lazy_ptr");
- O << "-" << L0p << ")(r11)\n";
- O << "\tmtctr r12\n";
- O << "\tbctr\n";
- SwitchToDataSection(".lazy_symbol_pointer");
- printSuffixedName(p, "$lazy_ptr");
- O << ":\n";
- O << "\t.indirect_symbol " << *i << '\n';
- if (isPPC64)
- O << "\t.quad dyld_stub_binding_helper\n";
- else
- O << "\t.long dyld_stub_binding_helper\n";
- }
- } else {
- for (std::set<std::string>::iterator i = FnStubs.begin(), e = FnStubs.end();
- i != e; ++i) {
- SwitchToTextSection("\t.section __TEXT,__symbol_stub1,symbol_stubs,"
- "pure_instructions,16");
- EmitAlignment(4);
- std::string p = *i;
- printSuffixedName(p, "$stub");
- O << ":\n";
- O << "\t.indirect_symbol " << *i << '\n';
- O << "\tlis r11,ha16(";
- printSuffixedName(p, "$lazy_ptr");
- O << ")\n";
- if (isPPC64)
- O << "\tldu r12,lo16(";
- else
- O << "\tlwzu r12,lo16(";
- printSuffixedName(p, "$lazy_ptr");
- O << ")(r11)\n";
- O << "\tmtctr r12\n";
- O << "\tbctr\n";
- SwitchToDataSection(".lazy_symbol_pointer");
- printSuffixedName(p, "$lazy_ptr");
- O << ":\n";
- O << "\t.indirect_symbol " << *i << '\n';
- if (isPPC64)
- O << "\t.quad dyld_stub_binding_helper\n";
- else
- O << "\t.long dyld_stub_binding_helper\n";
- }
- }
-
- O << '\n';
-
- if (TAI->doesSupportExceptionHandling() && MMI) {
- // Add the (possibly multiple) personalities to the set of global values.
- // Only referenced functions get into the Personalities list.
- const std::vector<Function *>& Personalities = MMI->getPersonalities();
-
- for (std::vector<Function *>::const_iterator I = Personalities.begin(),
- E = Personalities.end(); I != E; ++I)
- if (*I) GVStubs.insert("_" + (*I)->getName());
- }
-
- // Output stubs for external and common global variables.
- if (!GVStubs.empty()) {
- SwitchToDataSection(".non_lazy_symbol_pointer");
- for (std::set<std::string>::iterator I = GVStubs.begin(),
- E = GVStubs.end(); I != E; ++I) {
- std::string p = *I;
- printSuffixedName(p, "$non_lazy_ptr");
- O << ":\n";
- O << "\t.indirect_symbol " << *I << '\n';
- if (isPPC64)
- O << "\t.quad\t0\n";
- else
- O << "\t.long\t0\n";
- }
- }
-
- // Emit initial debug information.
- DW.EndModule();
-
- // Funny Darwin hack: This flag tells the linker that no global symbols
- // contain code that falls through to other global symbols (e.g. the obvious
- // implementation of multiple entry points). If this doesn't occur, the
- // linker can safely perform dead code stripping. Since LLVM never generates
- // code that does this, it is always safe to set.
- O << "\t.subsections_via_symbols\n";
-
- return AsmPrinter::doFinalization(M);
-}
-
-
-
-/// createPPCAsmPrinterPass - Returns a pass that prints the PPC assembly code
-/// for a MachineFunction to the given output stream, in a format that the
-/// Darwin assembler can deal with.
-///
-FunctionPass *llvm::createPPCAsmPrinterPass(std::ostream &o,
- PPCTargetMachine &tm) {
- const PPCSubtarget *Subtarget = &tm.getSubtarget<PPCSubtarget>();
-
- if (Subtarget->isDarwin()) {
- return new PPCDarwinAsmPrinter(o, tm, tm.getTargetAsmInfo());
- } else {
- return new PPCLinuxAsmPrinter(o, tm, tm.getTargetAsmInfo());
- }
-}
Modified: llvm/trunk/lib/Target/PowerPC/PPCTargetMachine.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/PowerPC/PPCTargetMachine.cpp?rev=54887&r1=54886&r2=54887&view=diff
==============================================================================
--- llvm/trunk/lib/Target/PowerPC/PPCTargetMachine.cpp (original)
+++ llvm/trunk/lib/Target/PowerPC/PPCTargetMachine.cpp Sun Aug 17 08:54:28 2008
@@ -26,6 +26,9 @@
static RegisterTarget<PPC64TargetMachine>
Y("ppc64", " PowerPC 64");
+// No assembler printer by default
+PPCTargetMachine::AsmPrinterCtorFn PPCTargetMachine::AsmPrinterCtor = 0;
+
const TargetAsmInfo *PPCTargetMachine::createTargetAsmInfo() const {
if (Subtarget.isDarwin())
return new PPCDarwinTargetAsmInfo(*this);
@@ -132,7 +135,10 @@
bool PPCTargetMachine::addAssemblyEmitter(PassManagerBase &PM, bool Fast,
std::ostream &Out) {
- PM.add(createPPCAsmPrinterPass(Out, *this));
+ assert(AsmPrinterCtor && "AsmPrinter was not linked in");
+ if (AsmPrinterCtor)
+ PM.add(AsmPrinterCtor(Out, *this));
+
return false;
}
@@ -158,8 +164,12 @@
// Machine code emitter pass for PowerPC.
PM.add(createPPCCodeEmitterPass(*this, MCE));
- if (DumpAsm)
- PM.add(createPPCAsmPrinterPass(*cerr.stream(), *this));
+ if (DumpAsm) {
+ assert(AsmPrinterCtor && "AsmPrinter was not linked in");
+ if (AsmPrinterCtor)
+ PM.add(AsmPrinterCtor(*cerr.stream(), *this));
+ }
+
return false;
}
@@ -167,7 +177,11 @@
bool DumpAsm, MachineCodeEmitter &MCE) {
// Machine code emitter pass for PowerPC.
PM.add(createPPCCodeEmitterPass(*this, MCE));
- if (DumpAsm)
- PM.add(createPPCAsmPrinterPass(*cerr.stream(), *this));
+ if (DumpAsm) {
+ assert(AsmPrinterCtor && "AsmPrinter was not linked in");
+ if (AsmPrinterCtor)
+ PM.add(AsmPrinterCtor(*cerr.stream(), *this));
+ }
+
return false;
}
Modified: llvm/trunk/lib/Target/PowerPC/PPCTargetMachine.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/PowerPC/PPCTargetMachine.h?rev=54887&r1=54886&r2=54887&view=diff
==============================================================================
--- llvm/trunk/lib/Target/PowerPC/PPCTargetMachine.h (original)
+++ llvm/trunk/lib/Target/PowerPC/PPCTargetMachine.h Sun Aug 17 08:54:28 2008
@@ -41,7 +41,13 @@
protected:
virtual const TargetAsmInfo *createTargetAsmInfo() const;
-
+
+ // To avoid having target depend on the asmprinter stuff libraries, asmprinter
+ // set this functions to ctor pointer at startup time if they are linked in.
+ typedef FunctionPass *(*AsmPrinterCtorFn)(std::ostream &o,
+ PPCTargetMachine &tm);
+ static AsmPrinterCtorFn AsmPrinterCtor;
+
public:
PPCTargetMachine(const Module &M, const std::string &FS, bool is64Bit);
@@ -63,7 +69,11 @@
virtual const PPCMachOWriterInfo *getMachOWriterInfo() const {
return &MachOWriterInfo;
}
-
+
+ static void registerAsmPrinter(AsmPrinterCtorFn F) {
+ AsmPrinterCtor = F;
+ }
+
// Pass Pipeline Configuration
virtual bool addInstSelector(PassManagerBase &PM, bool Fast);
virtual bool addPreEmitPass(PassManagerBase &PM, bool Fast);
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