519 lines
20 KiB
C++
519 lines
20 KiB
C++
//===-- AsmPrinterInlineAsm.cpp - AsmPrinter Inline Asm Handling ----------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file implements the inline assembler pieces of the AsmPrinter class.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/ADT/SmallString.h"
|
|
#include "llvm/ADT/SmallVector.h"
|
|
#include "llvm/ADT/Twine.h"
|
|
#include "llvm/CodeGen/AsmPrinter.h"
|
|
#include "llvm/CodeGen/MachineBasicBlock.h"
|
|
#include "llvm/CodeGen/MachineFunction.h"
|
|
#include "llvm/CodeGen/MachineModuleInfo.h"
|
|
#include "llvm/CodeGen/TargetRegisterInfo.h"
|
|
#include "llvm/CodeGen/TargetSubtargetInfo.h"
|
|
#include "llvm/IR/Constants.h"
|
|
#include "llvm/IR/DataLayout.h"
|
|
#include "llvm/IR/DiagnosticInfo.h"
|
|
#include "llvm/IR/InlineAsm.h"
|
|
#include "llvm/IR/LLVMContext.h"
|
|
#include "llvm/IR/Module.h"
|
|
#include "llvm/MC/MCAsmInfo.h"
|
|
#include "llvm/MC/MCInstrInfo.h"
|
|
#include "llvm/MC/MCParser/MCAsmLexer.h"
|
|
#include "llvm/MC/MCParser/MCTargetAsmParser.h"
|
|
#include "llvm/MC/MCStreamer.h"
|
|
#include "llvm/MC/MCSymbol.h"
|
|
#include "llvm/MC/TargetRegistry.h"
|
|
#include "llvm/Support/ErrorHandling.h"
|
|
#include "llvm/Support/MemoryBuffer.h"
|
|
#include "llvm/Support/SourceMgr.h"
|
|
#include "llvm/Support/raw_ostream.h"
|
|
#include "llvm/Target/TargetMachine.h"
|
|
using namespace llvm;
|
|
|
|
#define DEBUG_TYPE "asm-printer"
|
|
|
|
unsigned AsmPrinter::addInlineAsmDiagBuffer(StringRef AsmStr,
|
|
const MDNode *LocMDNode) const {
|
|
MCContext &Context = MMI->getContext();
|
|
Context.initInlineSourceManager();
|
|
SourceMgr &SrcMgr = *Context.getInlineSourceManager();
|
|
std::vector<const MDNode *> &LocInfos = Context.getLocInfos();
|
|
|
|
std::unique_ptr<MemoryBuffer> Buffer;
|
|
// The inline asm source manager will outlive AsmStr, so make a copy of the
|
|
// string for SourceMgr to own.
|
|
Buffer = MemoryBuffer::getMemBufferCopy(AsmStr, "<inline asm>");
|
|
|
|
// Tell SrcMgr about this buffer, it takes ownership of the buffer.
|
|
unsigned BufNum = SrcMgr.AddNewSourceBuffer(std::move(Buffer), SMLoc());
|
|
|
|
// Store LocMDNode in DiagInfo, using BufNum as an identifier.
|
|
if (LocMDNode) {
|
|
LocInfos.resize(BufNum);
|
|
LocInfos[BufNum - 1] = LocMDNode;
|
|
}
|
|
|
|
return BufNum;
|
|
}
|
|
|
|
|
|
/// EmitInlineAsm - Emit a blob of inline asm to the output streamer.
|
|
void AsmPrinter::emitInlineAsm(StringRef Str, const MCSubtargetInfo &STI,
|
|
const MCTargetOptions &MCOptions,
|
|
const MDNode *LocMDNode,
|
|
InlineAsm::AsmDialect Dialect) const {
|
|
assert(!Str.empty() && "Can't emit empty inline asm block");
|
|
|
|
// Remember if the buffer is nul terminated or not so we can avoid a copy.
|
|
bool isNullTerminated = Str.back() == 0;
|
|
if (isNullTerminated)
|
|
Str = Str.substr(0, Str.size()-1);
|
|
|
|
// If the output streamer does not have mature MC support or the integrated
|
|
// assembler has been disabled or not required, just emit the blob textually.
|
|
// Otherwise parse the asm and emit it via MC support.
|
|
// This is useful in case the asm parser doesn't handle something but the
|
|
// system assembler does.
|
|
const MCAsmInfo *MCAI = TM.getMCAsmInfo();
|
|
assert(MCAI && "No MCAsmInfo");
|
|
if (!MCAI->useIntegratedAssembler() &&
|
|
!MCAI->parseInlineAsmUsingAsmParser() &&
|
|
!OutStreamer->isIntegratedAssemblerRequired()) {
|
|
emitInlineAsmStart();
|
|
OutStreamer->emitRawText(Str);
|
|
emitInlineAsmEnd(STI, nullptr);
|
|
return;
|
|
}
|
|
|
|
unsigned BufNum = addInlineAsmDiagBuffer(Str, LocMDNode);
|
|
SourceMgr &SrcMgr = *MMI->getContext().getInlineSourceManager();
|
|
SrcMgr.setIncludeDirs(MCOptions.IASSearchPaths);
|
|
|
|
std::unique_ptr<MCAsmParser> Parser(
|
|
createMCAsmParser(SrcMgr, OutContext, *OutStreamer, *MAI, BufNum));
|
|
|
|
// Do not use assembler-level information for parsing inline assembly.
|
|
OutStreamer->setUseAssemblerInfoForParsing(false);
|
|
|
|
// We create a new MCInstrInfo here since we might be at the module level
|
|
// and not have a MachineFunction to initialize the TargetInstrInfo from and
|
|
// we only need MCInstrInfo for asm parsing. We create one unconditionally
|
|
// because it's not subtarget dependent.
|
|
std::unique_ptr<MCInstrInfo> MII(TM.getTarget().createMCInstrInfo());
|
|
assert(MII && "Failed to create instruction info");
|
|
std::unique_ptr<MCTargetAsmParser> TAP(TM.getTarget().createMCAsmParser(
|
|
STI, *Parser, *MII, MCOptions));
|
|
if (!TAP)
|
|
report_fatal_error("Inline asm not supported by this streamer because"
|
|
" we don't have an asm parser for this target\n");
|
|
Parser->setAssemblerDialect(Dialect);
|
|
Parser->setTargetParser(*TAP);
|
|
// Enable lexing Masm binary and hex integer literals in intel inline
|
|
// assembly.
|
|
if (Dialect == InlineAsm::AD_Intel)
|
|
Parser->getLexer().setLexMasmIntegers(true);
|
|
|
|
emitInlineAsmStart();
|
|
// Don't implicitly switch to the text section before the asm.
|
|
(void)Parser->Run(/*NoInitialTextSection*/ true,
|
|
/*NoFinalize*/ true);
|
|
emitInlineAsmEnd(STI, &TAP->getSTI());
|
|
}
|
|
|
|
static void EmitInlineAsmStr(const char *AsmStr, const MachineInstr *MI,
|
|
MachineModuleInfo *MMI, const MCAsmInfo *MAI,
|
|
AsmPrinter *AP, uint64_t LocCookie,
|
|
raw_ostream &OS) {
|
|
bool InputIsIntelDialect = MI->getInlineAsmDialect() == InlineAsm::AD_Intel;
|
|
|
|
if (InputIsIntelDialect) {
|
|
// Switch to the inline assembly variant.
|
|
OS << "\t.intel_syntax\n\t";
|
|
}
|
|
|
|
int CurVariant = -1; // The number of the {.|.|.} region we are in.
|
|
const char *LastEmitted = AsmStr; // One past the last character emitted.
|
|
unsigned NumOperands = MI->getNumOperands();
|
|
|
|
int AsmPrinterVariant;
|
|
if (InputIsIntelDialect)
|
|
AsmPrinterVariant = 1; // X86MCAsmInfo.cpp's AsmWriterFlavorTy::Intel.
|
|
else
|
|
AsmPrinterVariant = MMI->getTarget().unqualifiedInlineAsmVariant();
|
|
|
|
// FIXME: Should this happen for `asm inteldialect` as well?
|
|
if (!InputIsIntelDialect && MAI->getEmitGNUAsmStartIndentationMarker())
|
|
OS << '\t';
|
|
|
|
while (*LastEmitted) {
|
|
switch (*LastEmitted) {
|
|
default: {
|
|
// Not a special case, emit the string section literally.
|
|
const char *LiteralEnd = LastEmitted+1;
|
|
while (*LiteralEnd && *LiteralEnd != '{' && *LiteralEnd != '|' &&
|
|
*LiteralEnd != '}' && *LiteralEnd != '$' && *LiteralEnd != '\n')
|
|
++LiteralEnd;
|
|
if (CurVariant == -1 || CurVariant == AsmPrinterVariant)
|
|
OS.write(LastEmitted, LiteralEnd - LastEmitted);
|
|
LastEmitted = LiteralEnd;
|
|
break;
|
|
}
|
|
case '\n':
|
|
++LastEmitted; // Consume newline character.
|
|
OS << '\n'; // Indent code with newline.
|
|
break;
|
|
case '$': {
|
|
++LastEmitted; // Consume '$' character.
|
|
bool Done = true;
|
|
|
|
// Handle escapes.
|
|
switch (*LastEmitted) {
|
|
default: Done = false; break;
|
|
case '$': // $$ -> $
|
|
if (!InputIsIntelDialect)
|
|
if (CurVariant == -1 || CurVariant == AsmPrinterVariant)
|
|
OS << '$';
|
|
++LastEmitted; // Consume second '$' character.
|
|
break;
|
|
case '(': // $( -> same as GCC's { character.
|
|
++LastEmitted; // Consume '(' character.
|
|
if (CurVariant != -1)
|
|
report_fatal_error("Nested variants found in inline asm string: '" +
|
|
Twine(AsmStr) + "'");
|
|
CurVariant = 0; // We're in the first variant now.
|
|
break;
|
|
case '|':
|
|
++LastEmitted; // Consume '|' character.
|
|
if (CurVariant == -1)
|
|
OS << '|'; // This is gcc's behavior for | outside a variant.
|
|
else
|
|
++CurVariant; // We're in the next variant.
|
|
break;
|
|
case ')': // $) -> same as GCC's } char.
|
|
++LastEmitted; // Consume ')' character.
|
|
if (CurVariant == -1)
|
|
OS << '}'; // This is gcc's behavior for } outside a variant.
|
|
else
|
|
CurVariant = -1;
|
|
break;
|
|
}
|
|
if (Done) break;
|
|
|
|
bool HasCurlyBraces = false;
|
|
if (*LastEmitted == '{') { // ${variable}
|
|
++LastEmitted; // Consume '{' character.
|
|
HasCurlyBraces = true;
|
|
}
|
|
|
|
// If we have ${:foo}, then this is not a real operand reference, it is a
|
|
// "magic" string reference, just like in .td files. Arrange to call
|
|
// PrintSpecial.
|
|
if (HasCurlyBraces && *LastEmitted == ':') {
|
|
++LastEmitted;
|
|
const char *StrStart = LastEmitted;
|
|
const char *StrEnd = strchr(StrStart, '}');
|
|
if (!StrEnd)
|
|
report_fatal_error("Unterminated ${:foo} operand in inline asm"
|
|
" string: '" + Twine(AsmStr) + "'");
|
|
if (CurVariant == -1 || CurVariant == AsmPrinterVariant)
|
|
AP->PrintSpecial(MI, OS, StringRef(StrStart, StrEnd - StrStart));
|
|
LastEmitted = StrEnd+1;
|
|
break;
|
|
}
|
|
|
|
const char *IDStart = LastEmitted;
|
|
const char *IDEnd = IDStart;
|
|
while (isDigit(*IDEnd))
|
|
++IDEnd;
|
|
|
|
unsigned Val;
|
|
if (StringRef(IDStart, IDEnd-IDStart).getAsInteger(10, Val))
|
|
report_fatal_error("Bad $ operand number in inline asm string: '" +
|
|
Twine(AsmStr) + "'");
|
|
LastEmitted = IDEnd;
|
|
|
|
if (Val >= NumOperands - 1)
|
|
report_fatal_error("Invalid $ operand number in inline asm string: '" +
|
|
Twine(AsmStr) + "'");
|
|
|
|
char Modifier[2] = { 0, 0 };
|
|
|
|
if (HasCurlyBraces) {
|
|
// If we have curly braces, check for a modifier character. This
|
|
// supports syntax like ${0:u}, which correspond to "%u0" in GCC asm.
|
|
if (*LastEmitted == ':') {
|
|
++LastEmitted; // Consume ':' character.
|
|
if (*LastEmitted == 0)
|
|
report_fatal_error("Bad ${:} expression in inline asm string: '" +
|
|
Twine(AsmStr) + "'");
|
|
|
|
Modifier[0] = *LastEmitted;
|
|
++LastEmitted; // Consume modifier character.
|
|
}
|
|
|
|
if (*LastEmitted != '}')
|
|
report_fatal_error("Bad ${} expression in inline asm string: '" +
|
|
Twine(AsmStr) + "'");
|
|
++LastEmitted; // Consume '}' character.
|
|
}
|
|
|
|
// Okay, we finally have a value number. Ask the target to print this
|
|
// operand!
|
|
if (CurVariant == -1 || CurVariant == AsmPrinterVariant) {
|
|
unsigned OpNo = InlineAsm::MIOp_FirstOperand;
|
|
|
|
bool Error = false;
|
|
|
|
// Scan to find the machine operand number for the operand.
|
|
for (; Val; --Val) {
|
|
if (OpNo >= MI->getNumOperands())
|
|
break;
|
|
unsigned OpFlags = MI->getOperand(OpNo).getImm();
|
|
OpNo += InlineAsm::getNumOperandRegisters(OpFlags) + 1;
|
|
}
|
|
|
|
// We may have a location metadata attached to the end of the
|
|
// instruction, and at no point should see metadata at any
|
|
// other point while processing. It's an error if so.
|
|
if (OpNo >= MI->getNumOperands() || MI->getOperand(OpNo).isMetadata()) {
|
|
Error = true;
|
|
} else {
|
|
unsigned OpFlags = MI->getOperand(OpNo).getImm();
|
|
++OpNo; // Skip over the ID number.
|
|
|
|
// FIXME: Shouldn't arch-independent output template handling go into
|
|
// PrintAsmOperand?
|
|
// Labels are target independent.
|
|
if (MI->getOperand(OpNo).isBlockAddress()) {
|
|
const BlockAddress *BA = MI->getOperand(OpNo).getBlockAddress();
|
|
MCSymbol *Sym = AP->GetBlockAddressSymbol(BA);
|
|
Sym->print(OS, AP->MAI);
|
|
MMI->getContext().registerInlineAsmLabel(Sym);
|
|
} else if (MI->getOperand(OpNo).isMBB()) {
|
|
const MCSymbol *Sym = MI->getOperand(OpNo).getMBB()->getSymbol();
|
|
Sym->print(OS, AP->MAI);
|
|
} else if (InlineAsm::isMemKind(OpFlags)) {
|
|
Error = AP->PrintAsmMemoryOperand(
|
|
MI, OpNo, Modifier[0] ? Modifier : nullptr, OS);
|
|
} else {
|
|
Error = AP->PrintAsmOperand(MI, OpNo,
|
|
Modifier[0] ? Modifier : nullptr, OS);
|
|
}
|
|
}
|
|
if (Error) {
|
|
std::string msg;
|
|
raw_string_ostream Msg(msg);
|
|
Msg << "invalid operand in inline asm: '" << AsmStr << "'";
|
|
MMI->getModule()->getContext().emitError(LocCookie, Msg.str());
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (InputIsIntelDialect)
|
|
OS << "\n\t.att_syntax";
|
|
OS << '\n' << (char)0; // null terminate string.
|
|
}
|
|
|
|
/// This method formats and emits the specified machine instruction that is an
|
|
/// inline asm.
|
|
void AsmPrinter::emitInlineAsm(const MachineInstr *MI) const {
|
|
assert(MI->isInlineAsm() && "printInlineAsm only works on inline asms");
|
|
|
|
// Count the number of register definitions to find the asm string.
|
|
unsigned NumDefs = 0;
|
|
for (; MI->getOperand(NumDefs).isReg() && MI->getOperand(NumDefs).isDef();
|
|
++NumDefs)
|
|
assert(NumDefs != MI->getNumOperands()-2 && "No asm string?");
|
|
|
|
assert(MI->getOperand(NumDefs).isSymbol() && "No asm string?");
|
|
|
|
// Disassemble the AsmStr, printing out the literal pieces, the operands, etc.
|
|
const char *AsmStr = MI->getOperand(NumDefs).getSymbolName();
|
|
|
|
// 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) {
|
|
OutStreamer->emitRawComment(MAI->getInlineAsmStart());
|
|
OutStreamer->emitRawComment(MAI->getInlineAsmEnd());
|
|
return;
|
|
}
|
|
|
|
// Emit the #APP start marker. This has to happen even if verbose-asm isn't
|
|
// enabled, so we use emitRawComment.
|
|
OutStreamer->emitRawComment(MAI->getInlineAsmStart());
|
|
|
|
// Get the !srcloc metadata node if we have it, and decode the loc cookie from
|
|
// it.
|
|
uint64_t LocCookie = 0;
|
|
const MDNode *LocMD = nullptr;
|
|
for (const MachineOperand &MO : llvm::reverse(MI->operands())) {
|
|
if (MO.isMetadata() && (LocMD = MO.getMetadata()) &&
|
|
LocMD->getNumOperands() != 0) {
|
|
if (const ConstantInt *CI =
|
|
mdconst::dyn_extract<ConstantInt>(LocMD->getOperand(0))) {
|
|
LocCookie = CI->getZExtValue();
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Emit the inline asm to a temporary string so we can emit it through
|
|
// EmitInlineAsm.
|
|
SmallString<256> StringData;
|
|
raw_svector_ostream OS(StringData);
|
|
|
|
AsmPrinter *AP = const_cast<AsmPrinter*>(this);
|
|
EmitInlineAsmStr(AsmStr, MI, MMI, MAI, AP, LocCookie, OS);
|
|
|
|
// Emit warnings if we use reserved registers on the clobber list, as
|
|
// that might lead to undefined behaviour.
|
|
SmallVector<Register, 8> RestrRegs;
|
|
const TargetRegisterInfo *TRI = MF->getSubtarget().getRegisterInfo();
|
|
// Start with the first operand descriptor, and iterate over them.
|
|
for (unsigned I = InlineAsm::MIOp_FirstOperand, NumOps = MI->getNumOperands();
|
|
I < NumOps; ++I) {
|
|
const MachineOperand &MO = MI->getOperand(I);
|
|
if (!MO.isImm())
|
|
continue;
|
|
unsigned Flags = MO.getImm();
|
|
if (InlineAsm::getKind(Flags) == InlineAsm::Kind_Clobber) {
|
|
Register Reg = MI->getOperand(I + 1).getReg();
|
|
if (!TRI->isAsmClobberable(*MF, Reg))
|
|
RestrRegs.push_back(Reg);
|
|
}
|
|
// Skip to one before the next operand descriptor, if it exists.
|
|
I += InlineAsm::getNumOperandRegisters(Flags);
|
|
}
|
|
|
|
if (!RestrRegs.empty()) {
|
|
std::string Msg = "inline asm clobber list contains reserved registers: ";
|
|
ListSeparator LS;
|
|
for (const Register RR : RestrRegs) {
|
|
Msg += LS;
|
|
Msg += TRI->getRegAsmName(RR);
|
|
}
|
|
const char *Note =
|
|
"Reserved registers on the clobber list may not be "
|
|
"preserved across the asm statement, and clobbering them may "
|
|
"lead to undefined behaviour.";
|
|
MMI->getModule()->getContext().diagnose(DiagnosticInfoInlineAsm(
|
|
LocCookie, Msg, DiagnosticSeverity::DS_Warning));
|
|
MMI->getModule()->getContext().diagnose(
|
|
DiagnosticInfoInlineAsm(LocCookie, Note, DiagnosticSeverity::DS_Note));
|
|
}
|
|
|
|
emitInlineAsm(OS.str(), getSubtargetInfo(), TM.Options.MCOptions, LocMD,
|
|
MI->getInlineAsmDialect());
|
|
|
|
// Emit the #NOAPP end marker. This has to happen even if verbose-asm isn't
|
|
// enabled, so we use emitRawComment.
|
|
OutStreamer->emitRawComment(MAI->getInlineAsmEnd());
|
|
}
|
|
|
|
/// PrintSpecial - Print information related to the specified machine instr
|
|
/// that is independent of the operand, and may be independent of the instr
|
|
/// itself. This can be useful for portably encoding the comment character
|
|
/// or other bits of target-specific knowledge into the asmstrings. The
|
|
/// syntax used is ${:comment}. Targets can override this to add support
|
|
/// for their own strange codes.
|
|
void AsmPrinter::PrintSpecial(const MachineInstr *MI, raw_ostream &OS,
|
|
StringRef Code) const {
|
|
if (Code == "private") {
|
|
const DataLayout &DL = MF->getDataLayout();
|
|
OS << DL.getPrivateGlobalPrefix();
|
|
} else if (Code == "comment") {
|
|
OS << MAI->getCommentString();
|
|
} else if (Code == "uid") {
|
|
// Comparing the address of MI isn't sufficient, because machineinstrs may
|
|
// be allocated to the same address across functions.
|
|
|
|
// If this is a new LastFn instruction, bump the counter.
|
|
if (LastMI != MI || LastFn != getFunctionNumber()) {
|
|
++Counter;
|
|
LastMI = MI;
|
|
LastFn = getFunctionNumber();
|
|
}
|
|
OS << Counter;
|
|
} else {
|
|
std::string msg;
|
|
raw_string_ostream Msg(msg);
|
|
Msg << "Unknown special formatter '" << Code
|
|
<< "' for machine instr: " << *MI;
|
|
report_fatal_error(Twine(Msg.str()));
|
|
}
|
|
}
|
|
|
|
void AsmPrinter::PrintSymbolOperand(const MachineOperand &MO, raw_ostream &OS) {
|
|
assert(MO.isGlobal() && "caller should check MO.isGlobal");
|
|
getSymbolPreferLocal(*MO.getGlobal())->print(OS, MAI);
|
|
printOffset(MO.getOffset(), OS);
|
|
}
|
|
|
|
/// PrintAsmOperand - Print the specified operand of MI, an INLINEASM
|
|
/// instruction, using the specified assembler variant. Targets should
|
|
/// override this to format as appropriate for machine specific ExtraCodes
|
|
/// or when the arch-independent handling would be too complex otherwise.
|
|
bool AsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
|
|
const char *ExtraCode, raw_ostream &O) {
|
|
// Does this asm operand have a single letter operand modifier?
|
|
if (ExtraCode && ExtraCode[0]) {
|
|
if (ExtraCode[1] != 0) return true; // Unknown modifier.
|
|
|
|
// https://gcc.gnu.org/onlinedocs/gccint/Output-Template.html
|
|
const MachineOperand &MO = MI->getOperand(OpNo);
|
|
switch (ExtraCode[0]) {
|
|
default:
|
|
return true; // Unknown modifier.
|
|
case 'a': // Print as memory address.
|
|
if (MO.isReg()) {
|
|
PrintAsmMemoryOperand(MI, OpNo, nullptr, O);
|
|
return false;
|
|
}
|
|
LLVM_FALLTHROUGH; // GCC allows '%a' to behave like '%c' with immediates.
|
|
case 'c': // Substitute immediate value without immediate syntax
|
|
if (MO.isImm()) {
|
|
O << MO.getImm();
|
|
return false;
|
|
}
|
|
if (MO.isGlobal()) {
|
|
PrintSymbolOperand(MO, O);
|
|
return false;
|
|
}
|
|
return true;
|
|
case 'n': // Negate the immediate constant.
|
|
if (!MO.isImm())
|
|
return true;
|
|
O << -MO.getImm();
|
|
return false;
|
|
case 's': // The GCC deprecated s modifier
|
|
if (!MO.isImm())
|
|
return true;
|
|
O << ((32 - MO.getImm()) & 31);
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool AsmPrinter::PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNo,
|
|
const char *ExtraCode, raw_ostream &O) {
|
|
// Target doesn't support this yet!
|
|
return true;
|
|
}
|
|
|
|
void AsmPrinter::emitInlineAsmStart() const {}
|
|
|
|
void AsmPrinter::emitInlineAsmEnd(const MCSubtargetInfo &StartInfo,
|
|
const MCSubtargetInfo *EndInfo) const {}
|