#include "MIParser.h"
#include "MILexer.h"
#include "llvm/ADT/StringMap.h"
+#include "llvm/AsmParser/Parser.h"
#include "llvm/AsmParser/SlotMapping.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
+#include "llvm/CodeGen/MachineMemOperand.h"
#include "llvm/CodeGen/MachineModuleInfo.h"
#include "llvm/IR/Instructions.h"
+#include "llvm/IR/Constants.h"
#include "llvm/IR/Module.h"
+#include "llvm/IR/ModuleSlotTracker.h"
+#include "llvm/IR/ValueSymbolTable.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Support/SourceMgr.h"
#include "llvm/Target/TargetSubtargetInfo.h"
namespace {
-struct StringValueUtility {
- StringRef String;
- std::string UnescapedString;
-
- StringValueUtility(const MIToken &Token) {
- if (Token.isStringValueQuoted()) {
- Token.unescapeQuotedStringValue(UnescapedString);
- String = UnescapedString;
- return;
- }
- String = Token.stringValue();
- }
-
- operator StringRef() const { return String; }
-};
-
/// A wrapper struct around the 'MachineOperand' struct that includes a source
-/// range.
-struct MachineOperandWithLocation {
+/// range and other attributes.
+struct ParsedMachineOperand {
MachineOperand Operand;
StringRef::iterator Begin;
StringRef::iterator End;
-
- MachineOperandWithLocation(const MachineOperand &Operand,
- StringRef::iterator Begin, StringRef::iterator End)
- : Operand(Operand), Begin(Begin), End(End) {}
+ Optional<unsigned> TiedDefIdx;
+
+ ParsedMachineOperand(const MachineOperand &Operand, StringRef::iterator Begin,
+ StringRef::iterator End, Optional<unsigned> &TiedDefIdx)
+ : Operand(Operand), Begin(Begin), End(End), TiedDefIdx(TiedDefIdx) {
+ if (TiedDefIdx)
+ assert(Operand.isReg() && Operand.isUse() &&
+ "Only used register operands can be tied");
+ }
};
class MIParser {
StringMap<const uint32_t *> Names2RegMasks;
/// Maps from subregister names to subregister indices.
StringMap<unsigned> Names2SubRegIndices;
+ /// Maps from slot numbers to function's unnamed basic blocks.
+ DenseMap<unsigned, const BasicBlock *> Slots2BasicBlocks;
+ /// Maps from slot numbers to function's unnamed values.
+ DenseMap<unsigned, const Value *> Slots2Values;
+ /// Maps from target index names to target indices.
+ StringMap<int> Names2TargetIndices;
+ /// Maps from direct target flag names to the direct target flag values.
+ StringMap<unsigned> Names2DirectTargetFlags;
+ /// Maps from direct target flag names to the bitmask target flag values.
+ StringMap<unsigned> Names2BitmaskTargetFlags;
public:
MIParser(SourceMgr &SM, MachineFunction &MF, SMDiagnostic &Error,
/// This function always return true.
bool error(StringRef::iterator Loc, const Twine &Msg);
+ bool
+ parseBasicBlockDefinitions(DenseMap<unsigned, MachineBasicBlock *> &MBBSlots);
+ bool parseBasicBlocks();
bool parse(MachineInstr *&MI);
- bool parseMBB(MachineBasicBlock *&MBB);
- bool parseNamedRegister(unsigned &Reg);
+ bool parseStandaloneMBB(MachineBasicBlock *&MBB);
+ bool parseStandaloneNamedRegister(unsigned &Reg);
+ bool parseStandaloneVirtualRegister(unsigned &Reg);
+ bool parseStandaloneStackObject(int &FI);
+ bool parseStandaloneMDNode(MDNode *&Node);
+
+ bool
+ parseBasicBlockDefinition(DenseMap<unsigned, MachineBasicBlock *> &MBBSlots);
+ bool parseBasicBlock(MachineBasicBlock &MBB);
+ bool parseBasicBlockLiveins(MachineBasicBlock &MBB);
+ bool parseBasicBlockSuccessors(MachineBasicBlock &MBB);
bool parseRegister(unsigned &Reg);
bool parseRegisterFlag(unsigned &Flags);
bool parseSubRegisterIndex(unsigned &SubReg);
- bool parseRegisterOperand(MachineOperand &Dest, bool IsDef = false);
+ bool parseRegisterTiedDefIndex(unsigned &TiedDefIdx);
+ bool parseRegisterOperand(MachineOperand &Dest,
+ Optional<unsigned> &TiedDefIdx, bool IsDef = false);
bool parseImmediateOperand(MachineOperand &Dest);
+ bool parseIRConstant(StringRef::iterator Loc, StringRef Source,
+ const Constant *&C);
+ bool parseIRConstant(StringRef::iterator Loc, const Constant *&C);
+ bool parseTypedImmediateOperand(MachineOperand &Dest);
+ bool parseFPImmediateOperand(MachineOperand &Dest);
bool parseMBBReference(MachineBasicBlock *&MBB);
bool parseMBBOperand(MachineOperand &Dest);
+ bool parseStackFrameIndex(int &FI);
bool parseStackObjectOperand(MachineOperand &Dest);
+ bool parseFixedStackFrameIndex(int &FI);
bool parseFixedStackObjectOperand(MachineOperand &Dest);
+ bool parseGlobalValue(GlobalValue *&GV);
bool parseGlobalAddressOperand(MachineOperand &Dest);
bool parseConstantPoolIndexOperand(MachineOperand &Dest);
bool parseJumpTableIndexOperand(MachineOperand &Dest);
bool parseExternalSymbolOperand(MachineOperand &Dest);
+ bool parseMDNode(MDNode *&Node);
bool parseMetadataOperand(MachineOperand &Dest);
bool parseCFIOffset(int &Offset);
+ bool parseCFIRegister(unsigned &Reg);
bool parseCFIOperand(MachineOperand &Dest);
- bool parseMachineOperand(MachineOperand &Dest);
+ bool parseIRBlock(BasicBlock *&BB, const Function &F);
+ bool parseBlockAddressOperand(MachineOperand &Dest);
+ bool parseTargetIndexOperand(MachineOperand &Dest);
+ bool parseLiveoutRegisterMaskOperand(MachineOperand &Dest);
+ bool parseMachineOperand(MachineOperand &Dest,
+ Optional<unsigned> &TiedDefIdx);
+ bool parseMachineOperandAndTargetFlags(MachineOperand &Dest,
+ Optional<unsigned> &TiedDefIdx);
+ bool parseOffset(int64_t &Offset);
+ bool parseAlignment(unsigned &Alignment);
+ bool parseOperandsOffset(MachineOperand &Op);
+ bool parseIRValue(const Value *&V);
+ bool parseMemoryOperandFlag(unsigned &Flags);
+ bool parseMemoryPseudoSourceValue(const PseudoSourceValue *&PSV);
+ bool parseMachinePointerInfo(MachinePointerInfo &Dest);
+ bool parseMachineMemoryOperand(MachineMemOperand *&Dest);
private:
/// Convert the integer literal in the current token into an unsigned integer.
/// Return true if an error occurred.
bool getUnsigned(unsigned &Result);
+ /// Convert the integer literal in the current token into an uint64.
+ ///
+ /// Return true if an error occurred.
+ bool getUint64(uint64_t &Result);
+
+ /// If the current token is of the given kind, consume it and return false.
+ /// Otherwise report an error and return true.
+ bool expectAndConsume(MIToken::TokenKind TokenKind);
+
+ /// If the current token is of the given kind, consume it and return true.
+ /// Otherwise return false.
+ bool consumeIfPresent(MIToken::TokenKind TokenKind);
+
void initNames2InstrOpCodes();
/// Try to convert an instruction name to an opcode. Return true if the
bool parseInstruction(unsigned &OpCode, unsigned &Flags);
- bool verifyImplicitOperands(ArrayRef<MachineOperandWithLocation> Operands,
+ bool assignRegisterTies(MachineInstr &MI,
+ ArrayRef<ParsedMachineOperand> Operands);
+
+ bool verifyImplicitOperands(ArrayRef<ParsedMachineOperand> Operands,
const MCInstrDesc &MCID);
void initNames2Regs();
///
/// Return 0 if the name isn't a subregister index class.
unsigned getSubRegIndex(StringRef Name);
+
+ const BasicBlock *getIRBlock(unsigned Slot);
+ const BasicBlock *getIRBlock(unsigned Slot, const Function &F);
+
+ const Value *getIRValue(unsigned Slot);
+
+ void initNames2TargetIndices();
+
+ /// Try to convert a name of target index to the corresponding target index.
+ ///
+ /// Return true if the name isn't a name of a target index.
+ bool getTargetIndex(StringRef Name, int &Index);
+
+ void initNames2DirectTargetFlags();
+
+ /// Try to convert a name of a direct target flag to the corresponding
+ /// target flag.
+ ///
+ /// Return true if the name isn't a name of a direct flag.
+ bool getDirectTargetFlag(StringRef Name, unsigned &Flag);
+
+ void initNames2BitmaskTargetFlags();
+
+ /// Try to convert a name of a bitmask target flag to the corresponding
+ /// target flag.
+ ///
+ /// Return true if the name isn't a name of a bitmask target flag.
+ bool getBitmaskTargetFlag(StringRef Name, unsigned &Flag);
};
} // end anonymous namespace
StringRef Source, const PerFunctionMIParsingState &PFS,
const SlotMapping &IRSlots)
: SM(SM), MF(MF), Error(Error), Source(Source), CurrentSource(Source),
- Token(MIToken::Error, StringRef()), PFS(PFS), IRSlots(IRSlots) {}
+ PFS(PFS), IRSlots(IRSlots) {}
void MIParser::lex() {
CurrentSource = lexMIToken(
bool MIParser::error(StringRef::iterator Loc, const Twine &Msg) {
assert(Loc >= Source.data() && Loc <= (Source.data() + Source.size()));
- Error = SMDiagnostic(
- SM, SMLoc(),
- SM.getMemoryBuffer(SM.getMainFileID())->getBufferIdentifier(), 1,
- Loc - Source.data(), SourceMgr::DK_Error, Msg.str(), Source, None, None);
+ const MemoryBuffer &Buffer = *SM.getMemoryBuffer(SM.getMainFileID());
+ if (Loc >= Buffer.getBufferStart() && Loc <= Buffer.getBufferEnd()) {
+ // Create an ordinary diagnostic when the source manager's buffer is the
+ // source string.
+ Error = SM.GetMessage(SMLoc::getFromPointer(Loc), SourceMgr::DK_Error, Msg);
+ return true;
+ }
+ // Create a diagnostic for a YAML string literal.
+ Error = SMDiagnostic(SM, SMLoc(), Buffer.getBufferIdentifier(), 1,
+ Loc - Source.data(), SourceMgr::DK_Error, Msg.str(),
+ Source, None, None);
return true;
}
-bool MIParser::parse(MachineInstr *&MI) {
+static const char *toString(MIToken::TokenKind TokenKind) {
+ switch (TokenKind) {
+ case MIToken::comma:
+ return "','";
+ case MIToken::equal:
+ return "'='";
+ case MIToken::colon:
+ return "':'";
+ case MIToken::lparen:
+ return "'('";
+ case MIToken::rparen:
+ return "')'";
+ default:
+ return "<unknown token>";
+ }
+}
+
+bool MIParser::expectAndConsume(MIToken::TokenKind TokenKind) {
+ if (Token.isNot(TokenKind))
+ return error(Twine("expected ") + toString(TokenKind));
+ lex();
+ return false;
+}
+
+bool MIParser::consumeIfPresent(MIToken::TokenKind TokenKind) {
+ if (Token.isNot(TokenKind))
+ return false;
+ lex();
+ return true;
+}
+
+bool MIParser::parseBasicBlockDefinition(
+ DenseMap<unsigned, MachineBasicBlock *> &MBBSlots) {
+ assert(Token.is(MIToken::MachineBasicBlockLabel));
+ unsigned ID = 0;
+ if (getUnsigned(ID))
+ return true;
+ auto Loc = Token.location();
+ auto Name = Token.stringValue();
+ lex();
+ bool HasAddressTaken = false;
+ bool IsLandingPad = false;
+ unsigned Alignment = 0;
+ BasicBlock *BB = nullptr;
+ if (consumeIfPresent(MIToken::lparen)) {
+ do {
+ // TODO: Report an error when multiple same attributes are specified.
+ switch (Token.kind()) {
+ case MIToken::kw_address_taken:
+ HasAddressTaken = true;
+ lex();
+ break;
+ case MIToken::kw_landing_pad:
+ IsLandingPad = true;
+ lex();
+ break;
+ case MIToken::kw_align:
+ if (parseAlignment(Alignment))
+ return true;
+ break;
+ case MIToken::IRBlock:
+ // TODO: Report an error when both name and ir block are specified.
+ if (parseIRBlock(BB, *MF.getFunction()))
+ return true;
+ lex();
+ break;
+ default:
+ break;
+ }
+ } while (consumeIfPresent(MIToken::comma));
+ if (expectAndConsume(MIToken::rparen))
+ return true;
+ }
+ if (expectAndConsume(MIToken::colon))
+ return true;
+
+ if (!Name.empty()) {
+ BB = dyn_cast_or_null<BasicBlock>(
+ MF.getFunction()->getValueSymbolTable().lookup(Name));
+ if (!BB)
+ return error(Loc, Twine("basic block '") + Name +
+ "' is not defined in the function '" +
+ MF.getName() + "'");
+ }
+ auto *MBB = MF.CreateMachineBasicBlock(BB);
+ MF.insert(MF.end(), MBB);
+ bool WasInserted = MBBSlots.insert(std::make_pair(ID, MBB)).second;
+ if (!WasInserted)
+ return error(Loc, Twine("redefinition of machine basic block with id #") +
+ Twine(ID));
+ if (Alignment)
+ MBB->setAlignment(Alignment);
+ if (HasAddressTaken)
+ MBB->setHasAddressTaken();
+ MBB->setIsLandingPad(IsLandingPad);
+ return false;
+}
+
+bool MIParser::parseBasicBlockDefinitions(
+ DenseMap<unsigned, MachineBasicBlock *> &MBBSlots) {
+ lex();
+ // Skip until the first machine basic block.
+ while (Token.is(MIToken::Newline))
+ lex();
+ if (Token.isErrorOrEOF())
+ return Token.isError();
+ if (Token.isNot(MIToken::MachineBasicBlockLabel))
+ return error("expected a basic block definition before instructions");
+ unsigned BraceDepth = 0;
+ do {
+ if (parseBasicBlockDefinition(MBBSlots))
+ return true;
+ bool IsAfterNewline = false;
+ // Skip until the next machine basic block.
+ while (true) {
+ if ((Token.is(MIToken::MachineBasicBlockLabel) && IsAfterNewline) ||
+ Token.isErrorOrEOF())
+ break;
+ else if (Token.is(MIToken::MachineBasicBlockLabel))
+ return error("basic block definition should be located at the start of "
+ "the line");
+ else if (consumeIfPresent(MIToken::Newline)) {
+ IsAfterNewline = true;
+ continue;
+ }
+ IsAfterNewline = false;
+ if (Token.is(MIToken::lbrace))
+ ++BraceDepth;
+ if (Token.is(MIToken::rbrace)) {
+ if (!BraceDepth)
+ return error("extraneous closing brace ('}')");
+ --BraceDepth;
+ }
+ lex();
+ }
+ // Verify that we closed all of the '{' at the end of a file or a block.
+ if (!Token.isError() && BraceDepth)
+ return error("expected '}'"); // FIXME: Report a note that shows '{'.
+ } while (!Token.isErrorOrEOF());
+ return Token.isError();
+}
+
+bool MIParser::parseBasicBlockLiveins(MachineBasicBlock &MBB) {
+ assert(Token.is(MIToken::kw_liveins));
+ lex();
+ if (expectAndConsume(MIToken::colon))
+ return true;
+ if (Token.isNewlineOrEOF()) // Allow an empty list of liveins.
+ return false;
+ do {
+ if (Token.isNot(MIToken::NamedRegister))
+ return error("expected a named register");
+ unsigned Reg = 0;
+ if (parseRegister(Reg))
+ return true;
+ MBB.addLiveIn(Reg);
+ lex();
+ } while (consumeIfPresent(MIToken::comma));
+ return false;
+}
+
+bool MIParser::parseBasicBlockSuccessors(MachineBasicBlock &MBB) {
+ assert(Token.is(MIToken::kw_successors));
+ lex();
+ if (expectAndConsume(MIToken::colon))
+ return true;
+ if (Token.isNewlineOrEOF()) // Allow an empty list of successors.
+ return false;
+ do {
+ if (Token.isNot(MIToken::MachineBasicBlock))
+ return error("expected a machine basic block reference");
+ MachineBasicBlock *SuccMBB = nullptr;
+ if (parseMBBReference(SuccMBB))
+ return true;
+ lex();
+ unsigned Weight = 0;
+ if (consumeIfPresent(MIToken::lparen)) {
+ if (Token.isNot(MIToken::IntegerLiteral))
+ return error("expected an integer literal after '('");
+ if (getUnsigned(Weight))
+ return true;
+ lex();
+ if (expectAndConsume(MIToken::rparen))
+ return true;
+ }
+ MBB.addSuccessor(SuccMBB, Weight);
+ } while (consumeIfPresent(MIToken::comma));
+ return false;
+}
+
+bool MIParser::parseBasicBlock(MachineBasicBlock &MBB) {
+ // Skip the definition.
+ assert(Token.is(MIToken::MachineBasicBlockLabel));
+ lex();
+ if (consumeIfPresent(MIToken::lparen)) {
+ while (Token.isNot(MIToken::rparen) && !Token.isErrorOrEOF())
+ lex();
+ consumeIfPresent(MIToken::rparen);
+ }
+ consumeIfPresent(MIToken::colon);
+
+ // Parse the liveins and successors.
+ // N.B: Multiple lists of successors and liveins are allowed and they're
+ // merged into one.
+ // Example:
+ // liveins: %edi
+ // liveins: %esi
+ //
+ // is equivalent to
+ // liveins: %edi, %esi
+ while (true) {
+ if (Token.is(MIToken::kw_successors)) {
+ if (parseBasicBlockSuccessors(MBB))
+ return true;
+ } else if (Token.is(MIToken::kw_liveins)) {
+ if (parseBasicBlockLiveins(MBB))
+ return true;
+ } else if (consumeIfPresent(MIToken::Newline)) {
+ continue;
+ } else
+ break;
+ if (!Token.isNewlineOrEOF())
+ return error("expected line break at the end of a list");
+ lex();
+ }
+
+ // Parse the instructions.
+ bool IsInBundle = false;
+ MachineInstr *PrevMI = nullptr;
+ while (true) {
+ if (Token.is(MIToken::MachineBasicBlockLabel) || Token.is(MIToken::Eof))
+ return false;
+ else if (consumeIfPresent(MIToken::Newline))
+ continue;
+ if (consumeIfPresent(MIToken::rbrace)) {
+ // The first parsing pass should verify that all closing '}' have an
+ // opening '{'.
+ assert(IsInBundle);
+ IsInBundle = false;
+ continue;
+ }
+ MachineInstr *MI = nullptr;
+ if (parse(MI))
+ return true;
+ MBB.insert(MBB.end(), MI);
+ if (IsInBundle) {
+ PrevMI->setFlag(MachineInstr::BundledSucc);
+ MI->setFlag(MachineInstr::BundledPred);
+ }
+ PrevMI = MI;
+ if (Token.is(MIToken::lbrace)) {
+ if (IsInBundle)
+ return error("nested instruction bundles are not allowed");
+ lex();
+ // This instruction is the start of the bundle.
+ MI->setFlag(MachineInstr::BundledSucc);
+ IsInBundle = true;
+ if (!Token.is(MIToken::Newline))
+ // The next instruction can be on the same line.
+ continue;
+ }
+ assert(Token.isNewlineOrEOF() && "MI is not fully parsed");
+ lex();
+ }
+ return false;
+}
+
+bool MIParser::parseBasicBlocks() {
lex();
+ // Skip until the first machine basic block.
+ while (Token.is(MIToken::Newline))
+ lex();
+ if (Token.isErrorOrEOF())
+ return Token.isError();
+ // The first parsing pass should have verified that this token is a MBB label
+ // in the 'parseBasicBlockDefinitions' method.
+ assert(Token.is(MIToken::MachineBasicBlockLabel));
+ do {
+ MachineBasicBlock *MBB = nullptr;
+ if (parseMBBReference(MBB))
+ return true;
+ if (parseBasicBlock(*MBB))
+ return true;
+ // The method 'parseBasicBlock' should parse the whole block until the next
+ // block or the end of file.
+ assert(Token.is(MIToken::MachineBasicBlockLabel) || Token.is(MIToken::Eof));
+ } while (Token.isNot(MIToken::Eof));
+ return false;
+}
+bool MIParser::parse(MachineInstr *&MI) {
// Parse any register operands before '='
- // TODO: Allow parsing of multiple operands before '='
MachineOperand MO = MachineOperand::CreateImm(0);
- SmallVector<MachineOperandWithLocation, 8> Operands;
- if (Token.isRegister() || Token.isRegisterFlag()) {
+ SmallVector<ParsedMachineOperand, 8> Operands;
+ while (Token.isRegister() || Token.isRegisterFlag()) {
auto Loc = Token.location();
- if (parseRegisterOperand(MO, /*IsDef=*/true))
+ Optional<unsigned> TiedDefIdx;
+ if (parseRegisterOperand(MO, TiedDefIdx, /*IsDef=*/true))
return true;
- Operands.push_back(MachineOperandWithLocation(MO, Loc, Token.location()));
- if (Token.isNot(MIToken::equal))
- return error("expected '='");
+ Operands.push_back(
+ ParsedMachineOperand(MO, Loc, Token.location(), TiedDefIdx));
+ if (Token.isNot(MIToken::comma))
+ break;
lex();
}
+ if (!Operands.empty() && expectAndConsume(MIToken::equal))
+ return true;
unsigned OpCode, Flags = 0;
if (Token.isError() || parseInstruction(OpCode, Flags))
return true;
- // TODO: Parse the bundle instruction flags and memory operands.
-
// Parse the remaining machine operands.
- while (Token.isNot(MIToken::Eof)) {
+ while (!Token.isNewlineOrEOF() && Token.isNot(MIToken::kw_debug_location) &&
+ Token.isNot(MIToken::coloncolon) && Token.isNot(MIToken::lbrace)) {
auto Loc = Token.location();
- if (parseMachineOperand(MO))
+ Optional<unsigned> TiedDefIdx;
+ if (parseMachineOperandAndTargetFlags(MO, TiedDefIdx))
return true;
- Operands.push_back(MachineOperandWithLocation(MO, Loc, Token.location()));
- if (Token.is(MIToken::Eof))
+ Operands.push_back(
+ ParsedMachineOperand(MO, Loc, Token.location(), TiedDefIdx));
+ if (Token.isNewlineOrEOF() || Token.is(MIToken::coloncolon) ||
+ Token.is(MIToken::lbrace))
break;
if (Token.isNot(MIToken::comma))
return error("expected ',' before the next machine operand");
lex();
}
+ DebugLoc DebugLocation;
+ if (Token.is(MIToken::kw_debug_location)) {
+ lex();
+ if (Token.isNot(MIToken::exclaim))
+ return error("expected a metadata node after 'debug-location'");
+ MDNode *Node = nullptr;
+ if (parseMDNode(Node))
+ return true;
+ DebugLocation = DebugLoc(Node);
+ }
+
+ // Parse the machine memory operands.
+ SmallVector<MachineMemOperand *, 2> MemOperands;
+ if (Token.is(MIToken::coloncolon)) {
+ lex();
+ while (!Token.isNewlineOrEOF()) {
+ MachineMemOperand *MemOp = nullptr;
+ if (parseMachineMemoryOperand(MemOp))
+ return true;
+ MemOperands.push_back(MemOp);
+ if (Token.isNewlineOrEOF())
+ break;
+ if (Token.isNot(MIToken::comma))
+ return error("expected ',' before the next machine memory operand");
+ lex();
+ }
+ }
+
const auto &MCID = MF.getSubtarget().getInstrInfo()->get(OpCode);
if (!MCID.isVariadic()) {
// FIXME: Move the implicit operand verification to the machine verifier.
}
// TODO: Check for extraneous machine operands.
- MI = MF.CreateMachineInstr(MCID, DebugLoc(), /*NoImplicit=*/true);
+ MI = MF.CreateMachineInstr(MCID, DebugLocation, /*NoImplicit=*/true);
MI->setFlags(Flags);
for (const auto &Operand : Operands)
MI->addOperand(MF, Operand.Operand);
+ if (assignRegisterTies(*MI, Operands))
+ return true;
+ if (MemOperands.empty())
+ return false;
+ MachineInstr::mmo_iterator MemRefs =
+ MF.allocateMemRefsArray(MemOperands.size());
+ std::copy(MemOperands.begin(), MemOperands.end(), MemRefs);
+ MI->setMemRefs(MemRefs, MemRefs + MemOperands.size());
return false;
}
-bool MIParser::parseMBB(MachineBasicBlock *&MBB) {
+bool MIParser::parseStandaloneMBB(MachineBasicBlock *&MBB) {
lex();
if (Token.isNot(MIToken::MachineBasicBlock))
return error("expected a machine basic block reference");
return false;
}
-bool MIParser::parseNamedRegister(unsigned &Reg) {
+bool MIParser::parseStandaloneNamedRegister(unsigned &Reg) {
lex();
if (Token.isNot(MIToken::NamedRegister))
return error("expected a named register");
if (parseRegister(Reg))
- return 0;
+ return true;
lex();
if (Token.isNot(MIToken::Eof))
return error("expected end of string after the register reference");
return false;
}
+bool MIParser::parseStandaloneVirtualRegister(unsigned &Reg) {
+ lex();
+ if (Token.isNot(MIToken::VirtualRegister))
+ return error("expected a virtual register");
+ if (parseRegister(Reg))
+ return true;
+ lex();
+ if (Token.isNot(MIToken::Eof))
+ return error("expected end of string after the register reference");
+ return false;
+}
+
+bool MIParser::parseStandaloneStackObject(int &FI) {
+ lex();
+ if (Token.isNot(MIToken::StackObject))
+ return error("expected a stack object");
+ if (parseStackFrameIndex(FI))
+ return true;
+ if (Token.isNot(MIToken::Eof))
+ return error("expected end of string after the stack object reference");
+ return false;
+}
+
+bool MIParser::parseStandaloneMDNode(MDNode *&Node) {
+ lex();
+ if (Token.isNot(MIToken::exclaim))
+ return error("expected a metadata node");
+ if (parseMDNode(Node))
+ return true;
+ if (Token.isNot(MIToken::Eof))
+ return error("expected end of string after the metadata node");
+ return false;
+}
+
static const char *printImplicitRegisterFlag(const MachineOperand &MO) {
assert(MO.isImplicit());
return MO.isDef() ? "implicit-def" : "implicit";
return StringRef(TRI->getName(Reg)).lower();
}
-bool MIParser::verifyImplicitOperands(
- ArrayRef<MachineOperandWithLocation> Operands, const MCInstrDesc &MCID) {
+bool MIParser::verifyImplicitOperands(ArrayRef<ParsedMachineOperand> Operands,
+ const MCInstrDesc &MCID) {
if (MCID.isCall())
// We can't verify call instructions as they can contain arbitrary implicit
// register and register mask operands.
if (ImplicitOperand.isIdenticalTo(Operand))
continue;
if (Operand.isReg() && Operand.isImplicit()) {
+ // Check if this implicit register is a subregister of an explicit
+ // register operand.
+ bool IsImplicitSubRegister = false;
+ for (size_t K = 0, E = Operands.size(); K < E; ++K) {
+ const auto &Op = Operands[K].Operand;
+ if (Op.isReg() && !Op.isImplicit() &&
+ TRI->isSubRegister(Op.getReg(), Operand.getReg())) {
+ IsImplicitSubRegister = true;
+ break;
+ }
+ }
+ if (IsImplicitSubRegister)
+ continue;
return error(Operands[J].Begin,
Twine("expected an implicit register operand '") +
printImplicitRegisterFlag(ImplicitOperand) + " %" +
}
bool MIParser::parseRegisterFlag(unsigned &Flags) {
+ const unsigned OldFlags = Flags;
switch (Token.kind()) {
case MIToken::kw_implicit:
Flags |= RegState::Implicit;
case MIToken::kw_implicit_define:
Flags |= RegState::ImplicitDefine;
break;
+ case MIToken::kw_def:
+ Flags |= RegState::Define;
+ break;
case MIToken::kw_dead:
Flags |= RegState::Dead;
break;
case MIToken::kw_undef:
Flags |= RegState::Undef;
break;
- // TODO: report an error when we specify the same flag more than once.
- // TODO: parse the other register flags.
+ case MIToken::kw_internal:
+ Flags |= RegState::InternalRead;
+ break;
+ case MIToken::kw_early_clobber:
+ Flags |= RegState::EarlyClobber;
+ break;
+ case MIToken::kw_debug_use:
+ Flags |= RegState::Debug;
+ break;
default:
llvm_unreachable("The current token should be a register flag");
}
+ if (OldFlags == Flags)
+ // We know that the same flag is specified more than once when the flags
+ // weren't modified.
+ return error("duplicate '" + Token.stringValue() + "' register flag");
lex();
return false;
}
return false;
}
-bool MIParser::parseRegisterOperand(MachineOperand &Dest, bool IsDef) {
+bool MIParser::parseRegisterTiedDefIndex(unsigned &TiedDefIdx) {
+ if (!consumeIfPresent(MIToken::kw_tied_def))
+ return error("expected 'tied-def' after '('");
+ if (Token.isNot(MIToken::IntegerLiteral))
+ return error("expected an integer literal after 'tied-def'");
+ if (getUnsigned(TiedDefIdx))
+ return true;
+ lex();
+ if (expectAndConsume(MIToken::rparen))
+ return true;
+ return false;
+}
+
+bool MIParser::assignRegisterTies(MachineInstr &MI,
+ ArrayRef<ParsedMachineOperand> Operands) {
+ SmallVector<std::pair<unsigned, unsigned>, 4> TiedRegisterPairs;
+ for (unsigned I = 0, E = Operands.size(); I != E; ++I) {
+ if (!Operands[I].TiedDefIdx)
+ continue;
+ // The parser ensures that this operand is a register use, so we just have
+ // to check the tied-def operand.
+ unsigned DefIdx = Operands[I].TiedDefIdx.getValue();
+ if (DefIdx >= E)
+ return error(Operands[I].Begin,
+ Twine("use of invalid tied-def operand index '" +
+ Twine(DefIdx) + "'; instruction has only ") +
+ Twine(E) + " operands");
+ const auto &DefOperand = Operands[DefIdx].Operand;
+ if (!DefOperand.isReg() || !DefOperand.isDef())
+ // FIXME: add note with the def operand.
+ return error(Operands[I].Begin,
+ Twine("use of invalid tied-def operand index '") +
+ Twine(DefIdx) + "'; the operand #" + Twine(DefIdx) +
+ " isn't a defined register");
+ // Check that the tied-def operand wasn't tied elsewhere.
+ for (const auto &TiedPair : TiedRegisterPairs) {
+ if (TiedPair.first == DefIdx)
+ return error(Operands[I].Begin,
+ Twine("the tied-def operand #") + Twine(DefIdx) +
+ " is already tied with another register operand");
+ }
+ TiedRegisterPairs.push_back(std::make_pair(DefIdx, I));
+ }
+ // FIXME: Verify that for non INLINEASM instructions, the def and use tied
+ // indices must be less than tied max.
+ for (const auto &TiedPair : TiedRegisterPairs)
+ MI.tieOperands(TiedPair.first, TiedPair.second);
+ return false;
+}
+
+bool MIParser::parseRegisterOperand(MachineOperand &Dest,
+ Optional<unsigned> &TiedDefIdx,
+ bool IsDef) {
unsigned Reg;
unsigned Flags = IsDef ? RegState::Define : 0;
while (Token.isRegisterFlag()) {
if (parseSubRegisterIndex(SubReg))
return true;
}
+ if ((Flags & RegState::Define) == 0 && consumeIfPresent(MIToken::lparen)) {
+ unsigned Idx;
+ if (parseRegisterTiedDefIndex(Idx))
+ return true;
+ TiedDefIdx = Idx;
+ }
Dest = MachineOperand::CreateReg(
Reg, Flags & RegState::Define, Flags & RegState::Implicit,
Flags & RegState::Kill, Flags & RegState::Dead, Flags & RegState::Undef,
- /*isEarlyClobber=*/false, SubReg);
+ Flags & RegState::EarlyClobber, SubReg, Flags & RegState::Debug,
+ Flags & RegState::InternalRead);
return false;
}
assert(Token.is(MIToken::IntegerLiteral));
const APSInt &Int = Token.integerValue();
if (Int.getMinSignedBits() > 64)
- // TODO: Replace this with an error when we can parse CIMM Machine Operands.
- llvm_unreachable("Can't parse large integer literals yet!");
+ return error("integer literal is too large to be an immediate operand");
Dest = MachineOperand::CreateImm(Int.getExtValue());
lex();
return false;
}
+bool MIParser::parseIRConstant(StringRef::iterator Loc, StringRef StringValue,
+ const Constant *&C) {
+ auto Source = StringValue.str(); // The source has to be null terminated.
+ SMDiagnostic Err;
+ C = parseConstantValue(Source.c_str(), Err, *MF.getFunction()->getParent(),
+ &IRSlots);
+ if (!C)
+ return error(Loc + Err.getColumnNo(), Err.getMessage());
+ return false;
+}
+
+bool MIParser::parseIRConstant(StringRef::iterator Loc, const Constant *&C) {
+ if (parseIRConstant(Loc, StringRef(Loc, Token.range().end() - Loc), C))
+ return true;
+ lex();
+ return false;
+}
+
+bool MIParser::parseTypedImmediateOperand(MachineOperand &Dest) {
+ assert(Token.is(MIToken::IntegerType));
+ auto Loc = Token.location();
+ lex();
+ if (Token.isNot(MIToken::IntegerLiteral))
+ return error("expected an integer literal");
+ const Constant *C = nullptr;
+ if (parseIRConstant(Loc, C))
+ return true;
+ Dest = MachineOperand::CreateCImm(cast<ConstantInt>(C));
+ return false;
+}
+
+bool MIParser::parseFPImmediateOperand(MachineOperand &Dest) {
+ auto Loc = Token.location();
+ lex();
+ if (Token.isNot(MIToken::FloatingPointLiteral))
+ return error("expected a floating point literal");
+ const Constant *C = nullptr;
+ if (parseIRConstant(Loc, C))
+ return true;
+ Dest = MachineOperand::CreateFPImm(cast<ConstantFP>(C));
+ return false;
+}
+
bool MIParser::getUnsigned(unsigned &Result) {
assert(Token.hasIntegerValue() && "Expected a token with an integer value");
const uint64_t Limit = uint64_t(std::numeric_limits<unsigned>::max()) + 1;
}
bool MIParser::parseMBBReference(MachineBasicBlock *&MBB) {
- assert(Token.is(MIToken::MachineBasicBlock));
+ assert(Token.is(MIToken::MachineBasicBlock) ||
+ Token.is(MIToken::MachineBasicBlockLabel));
unsigned Number;
if (getUnsigned(Number))
return true;
return false;
}
-bool MIParser::parseStackObjectOperand(MachineOperand &Dest) {
+bool MIParser::parseStackFrameIndex(int &FI) {
assert(Token.is(MIToken::StackObject));
unsigned ID;
if (getUnsigned(ID))
return error(Twine("the name of the stack object '%stack.") + Twine(ID) +
"' isn't '" + Token.stringValue() + "'");
lex();
- Dest = MachineOperand::CreateFI(ObjectInfo->second);
+ FI = ObjectInfo->second;
return false;
}
-bool MIParser::parseFixedStackObjectOperand(MachineOperand &Dest) {
+bool MIParser::parseStackObjectOperand(MachineOperand &Dest) {
+ int FI;
+ if (parseStackFrameIndex(FI))
+ return true;
+ Dest = MachineOperand::CreateFI(FI);
+ return false;
+}
+
+bool MIParser::parseFixedStackFrameIndex(int &FI) {
assert(Token.is(MIToken::FixedStackObject));
unsigned ID;
if (getUnsigned(ID))
return error(Twine("use of undefined fixed stack object '%fixed-stack.") +
Twine(ID) + "'");
lex();
- Dest = MachineOperand::CreateFI(ObjectInfo->second);
+ FI = ObjectInfo->second;
return false;
}
-bool MIParser::parseGlobalAddressOperand(MachineOperand &Dest) {
+bool MIParser::parseFixedStackObjectOperand(MachineOperand &Dest) {
+ int FI;
+ if (parseFixedStackFrameIndex(FI))
+ return true;
+ Dest = MachineOperand::CreateFI(FI);
+ return false;
+}
+
+bool MIParser::parseGlobalValue(GlobalValue *&GV) {
switch (Token.kind()) {
- case MIToken::NamedGlobalValue:
- case MIToken::QuotedNamedGlobalValue: {
- StringValueUtility Name(Token);
+ case MIToken::NamedGlobalValue: {
const Module *M = MF.getFunction()->getParent();
- if (const auto *GV = M->getNamedValue(Name)) {
- Dest = MachineOperand::CreateGA(GV, /*Offset=*/0);
- break;
- }
- return error(Twine("use of undefined global value '@") +
- Token.rawStringValue() + "'");
+ GV = M->getNamedValue(Token.stringValue());
+ if (!GV)
+ return error(Twine("use of undefined global value '") + Token.range() +
+ "'");
+ break;
}
case MIToken::GlobalValue: {
unsigned GVIdx;
if (GVIdx >= IRSlots.GlobalValues.size())
return error(Twine("use of undefined global value '@") + Twine(GVIdx) +
"'");
- Dest = MachineOperand::CreateGA(IRSlots.GlobalValues[GVIdx],
- /*Offset=*/0);
+ GV = IRSlots.GlobalValues[GVIdx];
break;
}
default:
llvm_unreachable("The current token should be a global value");
}
- // TODO: Parse offset and target flags.
+ return false;
+}
+
+bool MIParser::parseGlobalAddressOperand(MachineOperand &Dest) {
+ GlobalValue *GV = nullptr;
+ if (parseGlobalValue(GV))
+ return true;
lex();
+ Dest = MachineOperand::CreateGA(GV, /*Offset=*/0);
+ if (parseOperandsOffset(Dest))
+ return true;
return false;
}
if (ConstantInfo == PFS.ConstantPoolSlots.end())
return error("use of undefined constant '%const." + Twine(ID) + "'");
lex();
- // TODO: Parse offset and target flags.
Dest = MachineOperand::CreateCPI(ID, /*Offset=*/0);
+ if (parseOperandsOffset(Dest))
+ return true;
return false;
}
if (JumpTableEntryInfo == PFS.JumpTableSlots.end())
return error("use of undefined jump table '%jump-table." + Twine(ID) + "'");
lex();
- // TODO: Parse target flags.
Dest = MachineOperand::CreateJTI(JumpTableEntryInfo->second);
return false;
}
bool MIParser::parseExternalSymbolOperand(MachineOperand &Dest) {
- assert(Token.is(MIToken::ExternalSymbol) ||
- Token.is(MIToken::QuotedExternalSymbol));
- StringValueUtility Name(Token);
- const char *Symbol = MF.createExternalSymbolName(Name);
+ assert(Token.is(MIToken::ExternalSymbol));
+ const char *Symbol = MF.createExternalSymbolName(Token.stringValue());
lex();
- // TODO: Parse the target flags.
Dest = MachineOperand::CreateES(Symbol);
+ if (parseOperandsOffset(Dest))
+ return true;
return false;
}
-bool MIParser::parseMetadataOperand(MachineOperand &Dest) {
+bool MIParser::parseMDNode(MDNode *&Node) {
assert(Token.is(MIToken::exclaim));
auto Loc = Token.location();
lex();
if (NodeInfo == IRSlots.MetadataNodes.end())
return error(Loc, "use of undefined metadata '!" + Twine(ID) + "'");
lex();
- Dest = MachineOperand::CreateMetadata(NodeInfo->second.get());
+ Node = NodeInfo->second.get();
+ return false;
+}
+
+bool MIParser::parseMetadataOperand(MachineOperand &Dest) {
+ MDNode *Node = nullptr;
+ if (parseMDNode(Node))
+ return true;
+ Dest = MachineOperand::CreateMetadata(Node);
return false;
}
return false;
}
+bool MIParser::parseCFIRegister(unsigned &Reg) {
+ if (Token.isNot(MIToken::NamedRegister))
+ return error("expected a cfi register");
+ unsigned LLVMReg;
+ if (parseRegister(LLVMReg))
+ return true;
+ const auto *TRI = MF.getSubtarget().getRegisterInfo();
+ assert(TRI && "Expected target register info");
+ int DwarfReg = TRI->getDwarfRegNum(LLVMReg, true);
+ if (DwarfReg < 0)
+ return error("invalid DWARF register");
+ Reg = (unsigned)DwarfReg;
+ lex();
+ return false;
+}
+
bool MIParser::parseCFIOperand(MachineOperand &Dest) {
- // TODO: Parse the other CFI operands.
- assert(Token.is(MIToken::kw_cfi_def_cfa_offset));
+ auto Kind = Token.kind();
lex();
+ auto &MMI = MF.getMMI();
int Offset;
- if (parseCFIOffset(Offset))
+ unsigned Reg;
+ unsigned CFIIndex;
+ switch (Kind) {
+ case MIToken::kw_cfi_same_value:
+ if (parseCFIRegister(Reg))
+ return true;
+ CFIIndex =
+ MMI.addFrameInst(MCCFIInstruction::createSameValue(nullptr, Reg));
+ break;
+ case MIToken::kw_cfi_offset:
+ if (parseCFIRegister(Reg) || expectAndConsume(MIToken::comma) ||
+ parseCFIOffset(Offset))
+ return true;
+ CFIIndex =
+ MMI.addFrameInst(MCCFIInstruction::createOffset(nullptr, Reg, Offset));
+ break;
+ case MIToken::kw_cfi_def_cfa_register:
+ if (parseCFIRegister(Reg))
+ return true;
+ CFIIndex =
+ MMI.addFrameInst(MCCFIInstruction::createDefCfaRegister(nullptr, Reg));
+ break;
+ case MIToken::kw_cfi_def_cfa_offset:
+ if (parseCFIOffset(Offset))
+ return true;
+ // NB: MCCFIInstruction::createDefCfaOffset negates the offset.
+ CFIIndex = MMI.addFrameInst(
+ MCCFIInstruction::createDefCfaOffset(nullptr, -Offset));
+ break;
+ case MIToken::kw_cfi_def_cfa:
+ if (parseCFIRegister(Reg) || expectAndConsume(MIToken::comma) ||
+ parseCFIOffset(Offset))
+ return true;
+ // NB: MCCFIInstruction::createDefCfa negates the offset.
+ CFIIndex =
+ MMI.addFrameInst(MCCFIInstruction::createDefCfa(nullptr, Reg, -Offset));
+ break;
+ default:
+ // TODO: Parse the other CFI operands.
+ llvm_unreachable("The current token should be a cfi operand");
+ }
+ Dest = MachineOperand::CreateCFIIndex(CFIIndex);
+ return false;
+}
+
+bool MIParser::parseIRBlock(BasicBlock *&BB, const Function &F) {
+ switch (Token.kind()) {
+ case MIToken::NamedIRBlock: {
+ BB = dyn_cast_or_null<BasicBlock>(
+ F.getValueSymbolTable().lookup(Token.stringValue()));
+ if (!BB)
+ return error(Twine("use of undefined IR block '") + Token.range() + "'");
+ break;
+ }
+ case MIToken::IRBlock: {
+ unsigned SlotNumber = 0;
+ if (getUnsigned(SlotNumber))
+ return true;
+ BB = const_cast<BasicBlock *>(getIRBlock(SlotNumber, F));
+ if (!BB)
+ return error(Twine("use of undefined IR block '%ir-block.") +
+ Twine(SlotNumber) + "'");
+ break;
+ }
+ default:
+ llvm_unreachable("The current token should be an IR block reference");
+ }
+ return false;
+}
+
+bool MIParser::parseBlockAddressOperand(MachineOperand &Dest) {
+ assert(Token.is(MIToken::kw_blockaddress));
+ lex();
+ if (expectAndConsume(MIToken::lparen))
+ return true;
+ if (Token.isNot(MIToken::GlobalValue) &&
+ Token.isNot(MIToken::NamedGlobalValue))
+ return error("expected a global value");
+ GlobalValue *GV = nullptr;
+ if (parseGlobalValue(GV))
+ return true;
+ auto *F = dyn_cast<Function>(GV);
+ if (!F)
+ return error("expected an IR function reference");
+ lex();
+ if (expectAndConsume(MIToken::comma))
+ return true;
+ BasicBlock *BB = nullptr;
+ if (Token.isNot(MIToken::IRBlock) && Token.isNot(MIToken::NamedIRBlock))
+ return error("expected an IR block reference");
+ if (parseIRBlock(BB, *F))
+ return true;
+ lex();
+ if (expectAndConsume(MIToken::rparen))
+ return true;
+ Dest = MachineOperand::CreateBA(BlockAddress::get(F, BB), /*Offset=*/0);
+ if (parseOperandsOffset(Dest))
+ return true;
+ return false;
+}
+
+bool MIParser::parseTargetIndexOperand(MachineOperand &Dest) {
+ assert(Token.is(MIToken::kw_target_index));
+ lex();
+ if (expectAndConsume(MIToken::lparen))
+ return true;
+ if (Token.isNot(MIToken::Identifier))
+ return error("expected the name of the target index");
+ int Index = 0;
+ if (getTargetIndex(Token.stringValue(), Index))
+ return error("use of undefined target index '" + Token.stringValue() + "'");
+ lex();
+ if (expectAndConsume(MIToken::rparen))
+ return true;
+ Dest = MachineOperand::CreateTargetIndex(unsigned(Index), /*Offset=*/0);
+ if (parseOperandsOffset(Dest))
return true;
- // NB: MCCFIInstruction::createDefCfaOffset negates the offset.
- Dest = MachineOperand::CreateCFIIndex(MF.getMMI().addFrameInst(
- MCCFIInstruction::createDefCfaOffset(nullptr, -Offset)));
return false;
}
-bool MIParser::parseMachineOperand(MachineOperand &Dest) {
+bool MIParser::parseLiveoutRegisterMaskOperand(MachineOperand &Dest) {
+ assert(Token.is(MIToken::kw_liveout));
+ const auto *TRI = MF.getSubtarget().getRegisterInfo();
+ assert(TRI && "Expected target register info");
+ uint32_t *Mask = MF.allocateRegisterMask(TRI->getNumRegs());
+ lex();
+ if (expectAndConsume(MIToken::lparen))
+ return true;
+ while (true) {
+ if (Token.isNot(MIToken::NamedRegister))
+ return error("expected a named register");
+ unsigned Reg = 0;
+ if (parseRegister(Reg))
+ return true;
+ lex();
+ Mask[Reg / 32] |= 1U << (Reg % 32);
+ // TODO: Report an error if the same register is used more than once.
+ if (Token.isNot(MIToken::comma))
+ break;
+ lex();
+ }
+ if (expectAndConsume(MIToken::rparen))
+ return true;
+ Dest = MachineOperand::CreateRegLiveOut(Mask);
+ return false;
+}
+
+bool MIParser::parseMachineOperand(MachineOperand &Dest,
+ Optional<unsigned> &TiedDefIdx) {
switch (Token.kind()) {
case MIToken::kw_implicit:
case MIToken::kw_implicit_define:
+ case MIToken::kw_def:
case MIToken::kw_dead:
case MIToken::kw_killed:
case MIToken::kw_undef:
+ case MIToken::kw_internal:
+ case MIToken::kw_early_clobber:
+ case MIToken::kw_debug_use:
case MIToken::underscore:
case MIToken::NamedRegister:
case MIToken::VirtualRegister:
- return parseRegisterOperand(Dest);
+ return parseRegisterOperand(Dest, TiedDefIdx);
case MIToken::IntegerLiteral:
return parseImmediateOperand(Dest);
+ case MIToken::IntegerType:
+ return parseTypedImmediateOperand(Dest);
+ case MIToken::kw_half:
+ case MIToken::kw_float:
+ case MIToken::kw_double:
+ case MIToken::kw_x86_fp80:
+ case MIToken::kw_fp128:
+ case MIToken::kw_ppc_fp128:
+ return parseFPImmediateOperand(Dest);
case MIToken::MachineBasicBlock:
return parseMBBOperand(Dest);
case MIToken::StackObject:
return parseFixedStackObjectOperand(Dest);
case MIToken::GlobalValue:
case MIToken::NamedGlobalValue:
- case MIToken::QuotedNamedGlobalValue:
return parseGlobalAddressOperand(Dest);
case MIToken::ConstantPoolItem:
return parseConstantPoolIndexOperand(Dest);
case MIToken::JumpTableIndex:
return parseJumpTableIndexOperand(Dest);
case MIToken::ExternalSymbol:
- case MIToken::QuotedExternalSymbol:
return parseExternalSymbolOperand(Dest);
case MIToken::exclaim:
return parseMetadataOperand(Dest);
+ case MIToken::kw_cfi_same_value:
+ case MIToken::kw_cfi_offset:
+ case MIToken::kw_cfi_def_cfa_register:
case MIToken::kw_cfi_def_cfa_offset:
+ case MIToken::kw_cfi_def_cfa:
return parseCFIOperand(Dest);
+ case MIToken::kw_blockaddress:
+ return parseBlockAddressOperand(Dest);
+ case MIToken::kw_target_index:
+ return parseTargetIndexOperand(Dest);
+ case MIToken::kw_liveout:
+ return parseLiveoutRegisterMaskOperand(Dest);
case MIToken::Error:
return true;
case MIToken::Identifier:
}
// fallthrough
default:
- // TODO: parse the other machine operands.
+ // FIXME: Parse the MCSymbol machine operand.
return error("expected a machine operand");
}
return false;
}
+bool MIParser::parseMachineOperandAndTargetFlags(
+ MachineOperand &Dest, Optional<unsigned> &TiedDefIdx) {
+ unsigned TF = 0;
+ bool HasTargetFlags = false;
+ if (Token.is(MIToken::kw_target_flags)) {
+ HasTargetFlags = true;
+ lex();
+ if (expectAndConsume(MIToken::lparen))
+ return true;
+ if (Token.isNot(MIToken::Identifier))
+ return error("expected the name of the target flag");
+ if (getDirectTargetFlag(Token.stringValue(), TF)) {
+ if (getBitmaskTargetFlag(Token.stringValue(), TF))
+ return error("use of undefined target flag '" + Token.stringValue() +
+ "'");
+ }
+ lex();
+ while (Token.is(MIToken::comma)) {
+ lex();
+ if (Token.isNot(MIToken::Identifier))
+ return error("expected the name of the target flag");
+ unsigned BitFlag = 0;
+ if (getBitmaskTargetFlag(Token.stringValue(), BitFlag))
+ return error("use of undefined target flag '" + Token.stringValue() +
+ "'");
+ // TODO: Report an error when using a duplicate bit target flag.
+ TF |= BitFlag;
+ lex();
+ }
+ if (expectAndConsume(MIToken::rparen))
+ return true;
+ }
+ auto Loc = Token.location();
+ if (parseMachineOperand(Dest, TiedDefIdx))
+ return true;
+ if (!HasTargetFlags)
+ return false;
+ if (Dest.isReg())
+ return error(Loc, "register operands can't have target flags");
+ Dest.setTargetFlags(TF);
+ return false;
+}
+
+bool MIParser::parseOffset(int64_t &Offset) {
+ if (Token.isNot(MIToken::plus) && Token.isNot(MIToken::minus))
+ return false;
+ StringRef Sign = Token.range();
+ bool IsNegative = Token.is(MIToken::minus);
+ lex();
+ if (Token.isNot(MIToken::IntegerLiteral))
+ return error("expected an integer literal after '" + Sign + "'");
+ if (Token.integerValue().getMinSignedBits() > 64)
+ return error("expected 64-bit integer (too large)");
+ Offset = Token.integerValue().getExtValue();
+ if (IsNegative)
+ Offset = -Offset;
+ lex();
+ return false;
+}
+
+bool MIParser::parseAlignment(unsigned &Alignment) {
+ assert(Token.is(MIToken::kw_align));
+ lex();
+ if (Token.isNot(MIToken::IntegerLiteral) || Token.integerValue().isSigned())
+ return error("expected an integer literal after 'align'");
+ if (getUnsigned(Alignment))
+ return true;
+ lex();
+ return false;
+}
+
+bool MIParser::parseOperandsOffset(MachineOperand &Op) {
+ int64_t Offset = 0;
+ if (parseOffset(Offset))
+ return true;
+ Op.setOffset(Offset);
+ return false;
+}
+
+bool MIParser::parseIRValue(const Value *&V) {
+ switch (Token.kind()) {
+ case MIToken::NamedIRValue: {
+ V = MF.getFunction()->getValueSymbolTable().lookup(Token.stringValue());
+ break;
+ }
+ case MIToken::IRValue: {
+ unsigned SlotNumber = 0;
+ if (getUnsigned(SlotNumber))
+ return true;
+ V = getIRValue(SlotNumber);
+ break;
+ }
+ case MIToken::NamedGlobalValue:
+ case MIToken::GlobalValue: {
+ GlobalValue *GV = nullptr;
+ if (parseGlobalValue(GV))
+ return true;
+ V = GV;
+ break;
+ }
+ case MIToken::QuotedIRValue: {
+ const Constant *C = nullptr;
+ if (parseIRConstant(Token.location(), Token.stringValue(), C))
+ return true;
+ V = C;
+ break;
+ }
+ default:
+ llvm_unreachable("The current token should be an IR block reference");
+ }
+ if (!V)
+ return error(Twine("use of undefined IR value '") + Token.range() + "'");
+ return false;
+}
+
+bool MIParser::getUint64(uint64_t &Result) {
+ assert(Token.hasIntegerValue());
+ if (Token.integerValue().getActiveBits() > 64)
+ return error("expected 64-bit integer (too large)");
+ Result = Token.integerValue().getZExtValue();
+ return false;
+}
+
+bool MIParser::parseMemoryOperandFlag(unsigned &Flags) {
+ const unsigned OldFlags = Flags;
+ switch (Token.kind()) {
+ case MIToken::kw_volatile:
+ Flags |= MachineMemOperand::MOVolatile;
+ break;
+ case MIToken::kw_non_temporal:
+ Flags |= MachineMemOperand::MONonTemporal;
+ break;
+ case MIToken::kw_invariant:
+ Flags |= MachineMemOperand::MOInvariant;
+ break;
+ // TODO: parse the target specific memory operand flags.
+ default:
+ llvm_unreachable("The current token should be a memory operand flag");
+ }
+ if (OldFlags == Flags)
+ // We know that the same flag is specified more than once when the flags
+ // weren't modified.
+ return error("duplicate '" + Token.stringValue() + "' memory operand flag");
+ lex();
+ return false;
+}
+
+bool MIParser::parseMemoryPseudoSourceValue(const PseudoSourceValue *&PSV) {
+ switch (Token.kind()) {
+ case MIToken::kw_stack:
+ PSV = MF.getPSVManager().getStack();
+ break;
+ case MIToken::kw_got:
+ PSV = MF.getPSVManager().getGOT();
+ break;
+ case MIToken::kw_jump_table:
+ PSV = MF.getPSVManager().getJumpTable();
+ break;
+ case MIToken::kw_constant_pool:
+ PSV = MF.getPSVManager().getConstantPool();
+ break;
+ case MIToken::FixedStackObject: {
+ int FI;
+ if (parseFixedStackFrameIndex(FI))
+ return true;
+ PSV = MF.getPSVManager().getFixedStack(FI);
+ // The token was already consumed, so use return here instead of break.
+ return false;
+ }
+ case MIToken::kw_call_entry: {
+ lex();
+ switch (Token.kind()) {
+ case MIToken::GlobalValue:
+ case MIToken::NamedGlobalValue: {
+ GlobalValue *GV = nullptr;
+ if (parseGlobalValue(GV))
+ return true;
+ PSV = MF.getPSVManager().getGlobalValueCallEntry(GV);
+ break;
+ }
+ case MIToken::ExternalSymbol:
+ PSV = MF.getPSVManager().getExternalSymbolCallEntry(
+ MF.createExternalSymbolName(Token.stringValue()));
+ break;
+ default:
+ return error(
+ "expected a global value or an external symbol after 'call-entry'");
+ }
+ break;
+ }
+ default:
+ llvm_unreachable("The current token should be pseudo source value");
+ }
+ lex();
+ return false;
+}
+
+bool MIParser::parseMachinePointerInfo(MachinePointerInfo &Dest) {
+ if (Token.is(MIToken::kw_constant_pool) || Token.is(MIToken::kw_stack) ||
+ Token.is(MIToken::kw_got) || Token.is(MIToken::kw_jump_table) ||
+ Token.is(MIToken::FixedStackObject) || Token.is(MIToken::kw_call_entry)) {
+ const PseudoSourceValue *PSV = nullptr;
+ if (parseMemoryPseudoSourceValue(PSV))
+ return true;
+ int64_t Offset = 0;
+ if (parseOffset(Offset))
+ return true;
+ Dest = MachinePointerInfo(PSV, Offset);
+ return false;
+ }
+ if (Token.isNot(MIToken::NamedIRValue) && Token.isNot(MIToken::IRValue) &&
+ Token.isNot(MIToken::GlobalValue) &&
+ Token.isNot(MIToken::NamedGlobalValue) &&
+ Token.isNot(MIToken::QuotedIRValue))
+ return error("expected an IR value reference");
+ const Value *V = nullptr;
+ if (parseIRValue(V))
+ return true;
+ if (!V->getType()->isPointerTy())
+ return error("expected a pointer IR value");
+ lex();
+ int64_t Offset = 0;
+ if (parseOffset(Offset))
+ return true;
+ Dest = MachinePointerInfo(V, Offset);
+ return false;
+}
+
+bool MIParser::parseMachineMemoryOperand(MachineMemOperand *&Dest) {
+ if (expectAndConsume(MIToken::lparen))
+ return true;
+ unsigned Flags = 0;
+ while (Token.isMemoryOperandFlag()) {
+ if (parseMemoryOperandFlag(Flags))
+ return true;
+ }
+ if (Token.isNot(MIToken::Identifier) ||
+ (Token.stringValue() != "load" && Token.stringValue() != "store"))
+ return error("expected 'load' or 'store' memory operation");
+ if (Token.stringValue() == "load")
+ Flags |= MachineMemOperand::MOLoad;
+ else
+ Flags |= MachineMemOperand::MOStore;
+ lex();
+
+ if (Token.isNot(MIToken::IntegerLiteral))
+ return error("expected the size integer literal after memory operation");
+ uint64_t Size;
+ if (getUint64(Size))
+ return true;
+ lex();
+
+ const char *Word = Flags & MachineMemOperand::MOLoad ? "from" : "into";
+ if (Token.isNot(MIToken::Identifier) || Token.stringValue() != Word)
+ return error(Twine("expected '") + Word + "'");
+ lex();
+
+ MachinePointerInfo Ptr = MachinePointerInfo();
+ if (parseMachinePointerInfo(Ptr))
+ return true;
+ unsigned BaseAlignment = Size;
+ AAMDNodes AAInfo;
+ MDNode *Range = nullptr;
+ while (consumeIfPresent(MIToken::comma)) {
+ switch (Token.kind()) {
+ case MIToken::kw_align:
+ if (parseAlignment(BaseAlignment))
+ return true;
+ break;
+ case MIToken::md_tbaa:
+ lex();
+ if (parseMDNode(AAInfo.TBAA))
+ return true;
+ break;
+ case MIToken::md_alias_scope:
+ lex();
+ if (parseMDNode(AAInfo.Scope))
+ return true;
+ break;
+ case MIToken::md_noalias:
+ lex();
+ if (parseMDNode(AAInfo.NoAlias))
+ return true;
+ break;
+ case MIToken::md_range:
+ lex();
+ if (parseMDNode(Range))
+ return true;
+ break;
+ // TODO: Report an error on duplicate metadata nodes.
+ default:
+ return error("expected 'align' or '!tbaa' or '!alias.scope' or "
+ "'!noalias' or '!range'");
+ }
+ }
+ if (expectAndConsume(MIToken::rparen))
+ return true;
+ Dest =
+ MF.getMachineMemOperand(Ptr, Flags, Size, BaseAlignment, AAInfo, Range);
+ return false;
+}
+
void MIParser::initNames2InstrOpCodes() {
if (!Names2InstrOpCodes.empty())
return;
return SubRegInfo->getValue();
}
-bool llvm::parseMachineInstr(MachineInstr *&MI, SourceMgr &SM,
- MachineFunction &MF, StringRef Src,
- const PerFunctionMIParsingState &PFS,
- const SlotMapping &IRSlots, SMDiagnostic &Error) {
- return MIParser(SM, MF, Error, Src, PFS, IRSlots).parse(MI);
+static void initSlots2BasicBlocks(
+ const Function &F,
+ DenseMap<unsigned, const BasicBlock *> &Slots2BasicBlocks) {
+ ModuleSlotTracker MST(F.getParent(), /*ShouldInitializeAllMetadata=*/false);
+ MST.incorporateFunction(F);
+ for (auto &BB : F) {
+ if (BB.hasName())
+ continue;
+ int Slot = MST.getLocalSlot(&BB);
+ if (Slot == -1)
+ continue;
+ Slots2BasicBlocks.insert(std::make_pair(unsigned(Slot), &BB));
+ }
+}
+
+static const BasicBlock *getIRBlockFromSlot(
+ unsigned Slot,
+ const DenseMap<unsigned, const BasicBlock *> &Slots2BasicBlocks) {
+ auto BlockInfo = Slots2BasicBlocks.find(Slot);
+ if (BlockInfo == Slots2BasicBlocks.end())
+ return nullptr;
+ return BlockInfo->second;
+}
+
+const BasicBlock *MIParser::getIRBlock(unsigned Slot) {
+ if (Slots2BasicBlocks.empty())
+ initSlots2BasicBlocks(*MF.getFunction(), Slots2BasicBlocks);
+ return getIRBlockFromSlot(Slot, Slots2BasicBlocks);
+}
+
+const BasicBlock *MIParser::getIRBlock(unsigned Slot, const Function &F) {
+ if (&F == MF.getFunction())
+ return getIRBlock(Slot);
+ DenseMap<unsigned, const BasicBlock *> CustomSlots2BasicBlocks;
+ initSlots2BasicBlocks(F, CustomSlots2BasicBlocks);
+ return getIRBlockFromSlot(Slot, CustomSlots2BasicBlocks);
+}
+
+static void mapValueToSlot(const Value *V, ModuleSlotTracker &MST,
+ DenseMap<unsigned, const Value *> &Slots2Values) {
+ int Slot = MST.getLocalSlot(V);
+ if (Slot == -1)
+ return;
+ Slots2Values.insert(std::make_pair(unsigned(Slot), V));
+}
+
+/// Creates the mapping from slot numbers to function's unnamed IR values.
+static void initSlots2Values(const Function &F,
+ DenseMap<unsigned, const Value *> &Slots2Values) {
+ ModuleSlotTracker MST(F.getParent(), /*ShouldInitializeAllMetadata=*/false);
+ MST.incorporateFunction(F);
+ for (const auto &Arg : F.args())
+ mapValueToSlot(&Arg, MST, Slots2Values);
+ for (const auto &BB : F) {
+ mapValueToSlot(&BB, MST, Slots2Values);
+ for (const auto &I : BB)
+ mapValueToSlot(&I, MST, Slots2Values);
+ }
+}
+
+const Value *MIParser::getIRValue(unsigned Slot) {
+ if (Slots2Values.empty())
+ initSlots2Values(*MF.getFunction(), Slots2Values);
+ auto ValueInfo = Slots2Values.find(Slot);
+ if (ValueInfo == Slots2Values.end())
+ return nullptr;
+ return ValueInfo->second;
+}
+
+void MIParser::initNames2TargetIndices() {
+ if (!Names2TargetIndices.empty())
+ return;
+ const auto *TII = MF.getSubtarget().getInstrInfo();
+ assert(TII && "Expected target instruction info");
+ auto Indices = TII->getSerializableTargetIndices();
+ for (const auto &I : Indices)
+ Names2TargetIndices.insert(std::make_pair(StringRef(I.second), I.first));
+}
+
+bool MIParser::getTargetIndex(StringRef Name, int &Index) {
+ initNames2TargetIndices();
+ auto IndexInfo = Names2TargetIndices.find(Name);
+ if (IndexInfo == Names2TargetIndices.end())
+ return true;
+ Index = IndexInfo->second;
+ return false;
+}
+
+void MIParser::initNames2DirectTargetFlags() {
+ if (!Names2DirectTargetFlags.empty())
+ return;
+ const auto *TII = MF.getSubtarget().getInstrInfo();
+ assert(TII && "Expected target instruction info");
+ auto Flags = TII->getSerializableDirectMachineOperandTargetFlags();
+ for (const auto &I : Flags)
+ Names2DirectTargetFlags.insert(
+ std::make_pair(StringRef(I.second), I.first));
+}
+
+bool MIParser::getDirectTargetFlag(StringRef Name, unsigned &Flag) {
+ initNames2DirectTargetFlags();
+ auto FlagInfo = Names2DirectTargetFlags.find(Name);
+ if (FlagInfo == Names2DirectTargetFlags.end())
+ return true;
+ Flag = FlagInfo->second;
+ return false;
+}
+
+void MIParser::initNames2BitmaskTargetFlags() {
+ if (!Names2BitmaskTargetFlags.empty())
+ return;
+ const auto *TII = MF.getSubtarget().getInstrInfo();
+ assert(TII && "Expected target instruction info");
+ auto Flags = TII->getSerializableBitmaskMachineOperandTargetFlags();
+ for (const auto &I : Flags)
+ Names2BitmaskTargetFlags.insert(
+ std::make_pair(StringRef(I.second), I.first));
+}
+
+bool MIParser::getBitmaskTargetFlag(StringRef Name, unsigned &Flag) {
+ initNames2BitmaskTargetFlags();
+ auto FlagInfo = Names2BitmaskTargetFlags.find(Name);
+ if (FlagInfo == Names2BitmaskTargetFlags.end())
+ return true;
+ Flag = FlagInfo->second;
+ return false;
+}
+
+bool llvm::parseMachineBasicBlockDefinitions(MachineFunction &MF, StringRef Src,
+ PerFunctionMIParsingState &PFS,
+ const SlotMapping &IRSlots,
+ SMDiagnostic &Error) {
+ SourceMgr SM;
+ SM.AddNewSourceBuffer(
+ MemoryBuffer::getMemBuffer(Src, "", /*RequiresNullTerminator=*/false),
+ SMLoc());
+ return MIParser(SM, MF, Error, Src, PFS, IRSlots)
+ .parseBasicBlockDefinitions(PFS.MBBSlots);
+}
+
+bool llvm::parseMachineInstructions(MachineFunction &MF, StringRef Src,
+ const PerFunctionMIParsingState &PFS,
+ const SlotMapping &IRSlots,
+ SMDiagnostic &Error) {
+ SourceMgr SM;
+ SM.AddNewSourceBuffer(
+ MemoryBuffer::getMemBuffer(Src, "", /*RequiresNullTerminator=*/false),
+ SMLoc());
+ return MIParser(SM, MF, Error, Src, PFS, IRSlots).parseBasicBlocks();
}
bool llvm::parseMBBReference(MachineBasicBlock *&MBB, SourceMgr &SM,
MachineFunction &MF, StringRef Src,
const PerFunctionMIParsingState &PFS,
const SlotMapping &IRSlots, SMDiagnostic &Error) {
- return MIParser(SM, MF, Error, Src, PFS, IRSlots).parseMBB(MBB);
+ return MIParser(SM, MF, Error, Src, PFS, IRSlots).parseStandaloneMBB(MBB);
}
bool llvm::parseNamedRegisterReference(unsigned &Reg, SourceMgr &SM,
const PerFunctionMIParsingState &PFS,
const SlotMapping &IRSlots,
SMDiagnostic &Error) {
- return MIParser(SM, MF, Error, Src, PFS, IRSlots).parseNamedRegister(Reg);
+ return MIParser(SM, MF, Error, Src, PFS, IRSlots)
+ .parseStandaloneNamedRegister(Reg);
+}
+
+bool llvm::parseVirtualRegisterReference(unsigned &Reg, SourceMgr &SM,
+ MachineFunction &MF, StringRef Src,
+ const PerFunctionMIParsingState &PFS,
+ const SlotMapping &IRSlots,
+ SMDiagnostic &Error) {
+ return MIParser(SM, MF, Error, Src, PFS, IRSlots)
+ .parseStandaloneVirtualRegister(Reg);
+}
+
+bool llvm::parseStackObjectReference(int &FI, SourceMgr &SM,
+ MachineFunction &MF, StringRef Src,
+ const PerFunctionMIParsingState &PFS,
+ const SlotMapping &IRSlots,
+ SMDiagnostic &Error) {
+ return MIParser(SM, MF, Error, Src, PFS, IRSlots)
+ .parseStandaloneStackObject(FI);
+}
+
+bool llvm::parseMDNode(MDNode *&Node, SourceMgr &SM, MachineFunction &MF,
+ StringRef Src, const PerFunctionMIParsingState &PFS,
+ const SlotMapping &IRSlots, SMDiagnostic &Error) {
+ return MIParser(SM, MF, Error, Src, PFS, IRSlots).parseStandaloneMDNode(Node);
}
projects / oota-llvm.git / blobdiff