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-rw-r--r--clang/lib/AST/Stmt.cpp41
-rw-r--r--clang/lib/AST/StmtPrinter.cpp2
-rw-r--r--clang/lib/CodeGen/CGStmt.cpp12
-rw-r--r--clang/lib/Parse/ParseStmt.cpp397
-rw-r--r--clang/lib/Sema/SemaDeclCXX.cpp3
-rw-r--r--clang/lib/Sema/SemaExpr.cpp10
-rw-r--r--clang/lib/Sema/SemaExprCXX.cpp2
-rw-r--r--clang/lib/Sema/SemaExprMember.cpp51
-rw-r--r--clang/lib/Sema/SemaLambda.cpp1
-rw-r--r--clang/lib/Sema/SemaStmt.cpp1
-rw-r--r--clang/lib/Sema/SemaStmtAsm.cpp332
-rw-r--r--clang/lib/Sema/TreeTransform.h36
-rw-r--r--clang/lib/Serialization/ASTReader.cpp23
-rw-r--r--clang/lib/Serialization/ASTReaderStmt.cpp74
-rw-r--r--clang/lib/Serialization/ASTWriter.cpp26
-rw-r--r--clang/lib/Serialization/ASTWriterStmt.cpp38
16 files changed, 682 insertions, 367 deletions
diff --git a/clang/lib/AST/Stmt.cpp b/clang/lib/AST/Stmt.cpp
index 2a7b1702220..888a148b961 100644
--- a/clang/lib/AST/Stmt.cpp
+++ b/clang/lib/AST/Stmt.cpp
@@ -673,19 +673,38 @@ GCCAsmStmt::GCCAsmStmt(ASTContext &C, SourceLocation asmloc, bool issimple,
MSAsmStmt::MSAsmStmt(ASTContext &C, SourceLocation asmloc,
SourceLocation lbraceloc, bool issimple, bool isvolatile,
ArrayRef<Token> asmtoks, unsigned numoutputs,
- unsigned numinputs, ArrayRef<IdentifierInfo*> names,
+ unsigned numinputs,
ArrayRef<StringRef> constraints, ArrayRef<Expr*> exprs,
StringRef asmstr, ArrayRef<StringRef> clobbers,
SourceLocation endloc)
: AsmStmt(MSAsmStmtClass, asmloc, issimple, isvolatile, numoutputs,
numinputs, clobbers.size()), LBraceLoc(lbraceloc),
- EndLoc(endloc), AsmStr(asmstr.str()), NumAsmToks(asmtoks.size()) {
+ EndLoc(endloc), NumAsmToks(asmtoks.size()) {
- unsigned NumExprs = NumOutputs + NumInputs;
+ initialize(C, asmstr, asmtoks, constraints, exprs, clobbers);
+}
- Names = new (C) IdentifierInfo*[NumExprs];
- for (unsigned i = 0, e = NumExprs; i != e; ++i)
- Names[i] = names[i];
+static StringRef copyIntoContext(ASTContext &C, StringRef str) {
+ size_t size = str.size();
+ char *buffer = new (C) char[size];
+ memcpy(buffer, str.data(), size);
+ return StringRef(buffer, size);
+}
+
+void MSAsmStmt::initialize(ASTContext &C,
+ StringRef asmstr,
+ ArrayRef<Token> asmtoks,
+ ArrayRef<StringRef> constraints,
+ ArrayRef<Expr*> exprs,
+ ArrayRef<StringRef> clobbers) {
+ assert(NumAsmToks == asmtoks.size());
+ assert(NumClobbers == clobbers.size());
+
+ unsigned NumExprs = exprs.size();
+ assert(NumExprs == NumOutputs + NumInputs);
+ assert(NumExprs == constraints.size());
+
+ AsmStr = copyIntoContext(C, asmstr);
Exprs = new (C) Stmt*[NumExprs];
for (unsigned i = 0, e = NumExprs; i != e; ++i)
@@ -697,19 +716,13 @@ MSAsmStmt::MSAsmStmt(ASTContext &C, SourceLocation asmloc,
Constraints = new (C) StringRef[NumExprs];
for (unsigned i = 0, e = NumExprs; i != e; ++i) {
- size_t size = constraints[i].size();
- char *dest = new (C) char[size];
- std::strncpy(dest, constraints[i].data(), size);
- Constraints[i] = StringRef(dest, size);
+ Constraints[i] = copyIntoContext(C, constraints[i]);
}
Clobbers = new (C) StringRef[NumClobbers];
for (unsigned i = 0, e = NumClobbers; i != e; ++i) {
// FIXME: Avoid the allocation/copy if at all possible.
- size_t size = clobbers[i].size();
- char *dest = new (C) char[size];
- std::strncpy(dest, clobbers[i].data(), size);
- Clobbers[i] = StringRef(dest, size);
+ Clobbers[i] = copyIntoContext(C, clobbers[i]);
}
}
diff --git a/clang/lib/AST/StmtPrinter.cpp b/clang/lib/AST/StmtPrinter.cpp
index a7177063ce0..9203dc1584b 100644
--- a/clang/lib/AST/StmtPrinter.cpp
+++ b/clang/lib/AST/StmtPrinter.cpp
@@ -445,7 +445,7 @@ void StmtPrinter::VisitMSAsmStmt(MSAsmStmt *Node) {
Indent() << "__asm ";
if (Node->hasBraces())
OS << "{\n";
- OS << *(Node->getAsmString()) << "\n";
+ OS << Node->getAsmString() << "\n";
if (Node->hasBraces())
Indent() << "}\n";
}
diff --git a/clang/lib/CodeGen/CGStmt.cpp b/clang/lib/CodeGen/CGStmt.cpp
index 28bbc46c689..73f66e0c8c7 100644
--- a/clang/lib/CodeGen/CGStmt.cpp
+++ b/clang/lib/CodeGen/CGStmt.cpp
@@ -1475,16 +1475,20 @@ void CodeGenFunction::EmitAsmStmt(const AsmStmt &S) {
SmallVector<TargetInfo::ConstraintInfo, 4> InputConstraintInfos;
for (unsigned i = 0, e = S.getNumOutputs(); i != e; i++) {
- TargetInfo::ConstraintInfo Info(S.getOutputConstraint(i),
- S.getOutputName(i));
+ StringRef Name;
+ if (const GCCAsmStmt *GAS = dyn_cast<GCCAsmStmt>(&S))
+ Name = GAS->getOutputName(i);
+ TargetInfo::ConstraintInfo Info(S.getOutputConstraint(i), Name);
bool IsValid = getTarget().validateOutputConstraint(Info); (void)IsValid;
assert(IsValid && "Failed to parse output constraint");
OutputConstraintInfos.push_back(Info);
}
for (unsigned i = 0, e = S.getNumInputs(); i != e; i++) {
- TargetInfo::ConstraintInfo Info(S.getInputConstraint(i),
- S.getInputName(i));
+ StringRef Name;
+ if (const GCCAsmStmt *GAS = dyn_cast<GCCAsmStmt>(&S))
+ Name = GAS->getInputName(i);
+ TargetInfo::ConstraintInfo Info(S.getInputConstraint(i), Name);
bool IsValid =
getTarget().validateInputConstraint(OutputConstraintInfos.data(),
S.getNumOutputs(), Info);
diff --git a/clang/lib/Parse/ParseStmt.cpp b/clang/lib/Parse/ParseStmt.cpp
index 5fa4f170265..43b6965d314 100644
--- a/clang/lib/Parse/ParseStmt.cpp
+++ b/clang/lib/Parse/ParseStmt.cpp
@@ -14,13 +14,26 @@
#include "clang/Parse/Parser.h"
#include "RAIIObjectsForParser.h"
+#include "clang/AST/ASTContext.h"
#include "clang/Basic/Diagnostic.h"
#include "clang/Basic/PrettyStackTrace.h"
#include "clang/Basic/SourceManager.h"
+#include "clang/Basic/TargetInfo.h"
#include "clang/Sema/DeclSpec.h"
#include "clang/Sema/PrettyDeclStackTrace.h"
#include "clang/Sema/Scope.h"
#include "clang/Sema/TypoCorrection.h"
+#include "llvm/MC/MCAsmInfo.h"
+#include "llvm/MC/MCContext.h"
+#include "llvm/MC/MCObjectFileInfo.h"
+#include "llvm/MC/MCParser/MCAsmParser.h"
+#include "llvm/MC/MCRegisterInfo.h"
+#include "llvm/MC/MCStreamer.h"
+#include "llvm/MC/MCSubtargetInfo.h"
+#include "llvm/MC/MCTargetAsmParser.h"
+#include "llvm/Support/SourceMgr.h"
+#include "llvm/Support/TargetRegistry.h"
+#include "llvm/Support/TargetSelect.h"
#include "llvm/ADT/SmallString.h"
using namespace clang;
@@ -1663,6 +1676,281 @@ StmtResult Parser::ParseReturnStatement() {
return Actions.ActOnReturnStmt(ReturnLoc, R.take());
}
+namespace {
+ class ClangAsmParserCallback : public llvm::MCAsmParserSemaCallback {
+ Parser &TheParser;
+ SourceLocation AsmLoc;
+ StringRef AsmString;
+
+ /// The tokens we streamed into AsmString and handed off to MC.
+ ArrayRef<Token> AsmToks;
+
+ /// The offset of each token in AsmToks within AsmString.
+ ArrayRef<unsigned> AsmTokOffsets;
+
+ public:
+ ClangAsmParserCallback(Parser &P, SourceLocation Loc,
+ StringRef AsmString,
+ ArrayRef<Token> Toks,
+ ArrayRef<unsigned> Offsets)
+ : TheParser(P), AsmLoc(Loc), AsmString(AsmString),
+ AsmToks(Toks), AsmTokOffsets(Offsets) {
+ assert(AsmToks.size() == AsmTokOffsets.size());
+ }
+
+ void *LookupInlineAsmIdentifier(StringRef &LineBuf,
+ InlineAsmIdentifierInfo &Info,
+ bool IsUnevaluatedContext) {
+ // Collect the desired tokens.
+ SmallVector<Token, 16> LineToks;
+ const Token *FirstOrigToken = 0;
+ findTokensForString(LineBuf, LineToks, FirstOrigToken);
+
+ unsigned NumConsumedToks;
+ ExprResult Result =
+ TheParser.ParseMSAsmIdentifier(LineToks, NumConsumedToks, &Info,
+ IsUnevaluatedContext);
+
+ // If we consumed the entire line, tell MC that.
+ // Also do this if we consumed nothing as a way of reporting failure.
+ if (NumConsumedToks == 0 || NumConsumedToks == LineToks.size()) {
+ // By not modifying LineBuf, we're implicitly consuming it all.
+
+ // Otherwise, consume up to the original tokens.
+ } else {
+ assert(FirstOrigToken && "not using original tokens?");
+
+ // Since we're using original tokens, apply that offset.
+ assert(FirstOrigToken[NumConsumedToks].getLocation()
+ == LineToks[NumConsumedToks].getLocation());
+ unsigned FirstIndex = FirstOrigToken - AsmToks.begin();
+ unsigned LastIndex = FirstIndex + NumConsumedToks - 1;
+
+ // The total length we've consumed is the relative offset
+ // of the last token we consumed plus its length.
+ unsigned TotalOffset = (AsmTokOffsets[LastIndex]
+ + AsmToks[LastIndex].getLength()
+ - AsmTokOffsets[FirstIndex]);
+ LineBuf = LineBuf.substr(0, TotalOffset);
+ }
+
+ // Initialize the "decl" with the lookup result.
+ Info.OpDecl = static_cast<void*>(Result.take());
+ return Info.OpDecl;
+ }
+
+ bool LookupInlineAsmField(StringRef Base, StringRef Member,
+ unsigned &Offset) {
+ return TheParser.getActions().LookupInlineAsmField(Base, Member,
+ Offset, AsmLoc);
+ }
+
+ static void DiagHandlerCallback(const llvm::SMDiagnostic &D,
+ void *Context) {
+ ((ClangAsmParserCallback*) Context)->handleDiagnostic(D);
+ }
+
+ private:
+ /// Collect the appropriate tokens for the given string.
+ void findTokensForString(StringRef Str, SmallVectorImpl<Token> &TempToks,
+ const Token *&FirstOrigToken) const {
+ // For now, assert that the string we're working with is a substring
+ // of what we gave to MC. This lets us use the original tokens.
+ assert(!std::less<const char*>()(Str.begin(), AsmString.begin()) &&
+ !std::less<const char*>()(AsmString.end(), Str.end()));
+
+ // Try to find a token whose offset matches the first token.
+ unsigned FirstCharOffset = Str.begin() - AsmString.begin();
+ const unsigned *FirstTokOffset
+ = std::lower_bound(AsmTokOffsets.begin(), AsmTokOffsets.end(),
+ FirstCharOffset);
+
+ // For now, assert that the start of the string exactly
+ // corresponds to the start of a token.
+ assert(*FirstTokOffset == FirstCharOffset);
+
+ // Use all the original tokens for this line. (We assume the
+ // end of the line corresponds cleanly to a token break.)
+ unsigned FirstTokIndex = FirstTokOffset - AsmTokOffsets.begin();
+ FirstOrigToken = &AsmToks[FirstTokIndex];
+ unsigned LastCharOffset = Str.end() - AsmString.begin();
+ for (unsigned i = FirstTokIndex, e = AsmTokOffsets.size(); i != e; ++i) {
+ if (AsmTokOffsets[i] >= LastCharOffset) break;
+ TempToks.push_back(AsmToks[i]);
+ }
+ }
+
+ void handleDiagnostic(const llvm::SMDiagnostic &D) {
+ // Compute an offset into the inline asm buffer.
+ // FIXME: This isn't right if .macro is involved (but hopefully, no
+ // real-world code does that).
+ const llvm::SourceMgr &LSM = *D.getSourceMgr();
+ const llvm::MemoryBuffer *LBuf =
+ LSM.getMemoryBuffer(LSM.FindBufferContainingLoc(D.getLoc()));
+ unsigned Offset = D.getLoc().getPointer() - LBuf->getBufferStart();
+
+ // Figure out which token that offset points into.
+ const unsigned *TokOffsetPtr =
+ std::lower_bound(AsmTokOffsets.begin(), AsmTokOffsets.end(), Offset);
+ unsigned TokIndex = TokOffsetPtr - AsmTokOffsets.begin();
+ unsigned TokOffset = *TokOffsetPtr;
+
+ // If we come up with an answer which seems sane, use it; otherwise,
+ // just point at the __asm keyword.
+ // FIXME: Assert the answer is sane once we handle .macro correctly.
+ SourceLocation Loc = AsmLoc;
+ if (TokIndex < AsmToks.size()) {
+ const Token &Tok = AsmToks[TokIndex];
+ Loc = Tok.getLocation();
+ Loc = Loc.getLocWithOffset(Offset - TokOffset);
+ }
+ TheParser.Diag(Loc, diag::err_inline_ms_asm_parsing)
+ << D.getMessage();
+ }
+ };
+}
+
+/// Parse an identifier in an MS-style inline assembly block.
+///
+/// \param CastInfo - a void* so that we don't have to teach Parser.h
+/// about the actual type.
+ExprResult Parser::ParseMSAsmIdentifier(llvm::SmallVectorImpl<Token> &LineToks,
+ unsigned &NumLineToksConsumed,
+ void *CastInfo,
+ bool IsUnevaluatedContext) {
+ llvm::InlineAsmIdentifierInfo &Info =
+ *(llvm::InlineAsmIdentifierInfo *) CastInfo;
+
+ // Push a fake token on the end so that we don't overrun the token
+ // stream. We use ';' because it expression-parsing should never
+ // overrun it.
+ const tok::TokenKind EndOfStream = tok::semi;
+ Token EndOfStreamTok;
+ EndOfStreamTok.startToken();
+ EndOfStreamTok.setKind(EndOfStream);
+ LineToks.push_back(EndOfStreamTok);
+
+ // Also copy the current token over.
+ LineToks.push_back(Tok);
+
+ PP.EnterTokenStream(LineToks.begin(),
+ LineToks.size(),
+ /*disable macros*/ true,
+ /*owns tokens*/ false);
+
+ // Clear the current token and advance to the first token in LineToks.
+ ConsumeAnyToken();
+
+ // Parse an optional scope-specifier if we're in C++.
+ CXXScopeSpec SS;
+ if (getLangOpts().CPlusPlus) {
+ ParseOptionalCXXScopeSpecifier(SS, ParsedType(), /*EnteringContext=*/false);
+ }
+
+ // Require an identifier here.
+ SourceLocation TemplateKWLoc;
+ UnqualifiedId Id;
+ bool Invalid = ParseUnqualifiedId(SS,
+ /*EnteringContext=*/false,
+ /*AllowDestructorName=*/false,
+ /*AllowConstructorName=*/false,
+ /*ObjectType=*/ ParsedType(),
+ TemplateKWLoc,
+ Id);
+
+ // If we've run into the poison token we inserted before, or there
+ // was a parsing error, then claim the entire line.
+ if (Invalid || Tok.is(EndOfStream)) {
+ NumLineToksConsumed = LineToks.size() - 2;
+
+ // Otherwise, claim up to the start of the next token.
+ } else {
+ // Figure out how many tokens we are into LineToks.
+ unsigned LineIndex = 0;
+ while (LineToks[LineIndex].getLocation() != Tok.getLocation()) {
+ LineIndex++;
+ assert(LineIndex < LineToks.size() - 2); // we added two extra tokens
+ }
+
+ NumLineToksConsumed = LineIndex;
+ }
+
+ // Finally, restore the old parsing state by consuming all the
+ // tokens we staged before, implicitly killing off the
+ // token-lexer we pushed.
+ for (unsigned n = LineToks.size() - 2 - NumLineToksConsumed; n != 0; --n) {
+ ConsumeAnyToken();
+ }
+ ConsumeToken(EndOfStream);
+
+ // Leave LineToks in its original state.
+ LineToks.pop_back();
+ LineToks.pop_back();
+
+ // Perform the lookup.
+ return Actions.LookupInlineAsmIdentifier(SS, TemplateKWLoc, Id, Info,
+ IsUnevaluatedContext);
+}
+
+/// Turn a sequence of our tokens back into a string that we can hand
+/// to the MC asm parser.
+static bool buildMSAsmString(Preprocessor &PP,
+ SourceLocation AsmLoc,
+ ArrayRef<Token> AsmToks,
+ SmallVectorImpl<unsigned> &TokOffsets,
+ SmallString<512> &Asm) {
+ assert (!AsmToks.empty() && "Didn't expect an empty AsmToks!");
+
+ // Is this the start of a new assembly statement?
+ bool isNewStatement = true;
+
+ for (unsigned i = 0, e = AsmToks.size(); i < e; ++i) {
+ const Token &Tok = AsmToks[i];
+
+ // Start each new statement with a newline and a tab.
+ if (!isNewStatement &&
+ (Tok.is(tok::kw_asm) || Tok.isAtStartOfLine())) {
+ Asm += "\n\t";
+ isNewStatement = true;
+ }
+
+ // Preserve the existence of leading whitespace except at the
+ // start of a statement.
+ if (!isNewStatement && Tok.hasLeadingSpace())
+ Asm += ' ';
+
+ // Remember the offset of this token.
+ TokOffsets.push_back(Asm.size());
+
+ // Don't actually write '__asm' into the assembly stream.
+ if (Tok.is(tok::kw_asm)) {
+ // Complain about __asm at the end of the stream.
+ if (i + 1 == e) {
+ PP.Diag(AsmLoc, diag::err_asm_empty);
+ return true;
+ }
+
+ continue;
+ }
+
+ // Append the spelling of the token.
+ SmallString<32> SpellingBuffer;
+ bool SpellingInvalid = false;
+ Asm += PP.getSpelling(Tok, SpellingBuffer, &SpellingInvalid);
+ assert(!SpellingInvalid && "spelling was invalid after correct parse?");
+
+ // We are no longer at the start of a statement.
+ isNewStatement = false;
+ }
+
+ // Ensure that the buffer is null-terminated.
+ Asm.push_back('\0');
+ Asm.pop_back();
+
+ assert(TokOffsets.size() == AsmToks.size());
+ return false;
+}
+
/// ParseMicrosoftAsmStatement. When -fms-extensions/-fasm-blocks is enabled,
/// this routine is called to collect the tokens for an MS asm statement.
///
@@ -1771,9 +2059,114 @@ StmtResult Parser::ParseMicrosoftAsmStatement(SourceLocation AsmLoc) {
return StmtError();
}
+ // Okay, prepare to use MC to parse the assembly.
+ SmallVector<StringRef, 4> ConstraintRefs;
+ SmallVector<Expr*, 4> Exprs;
+ SmallVector<StringRef, 4> ClobberRefs;
+
+ // We need an actual supported target.
+ llvm::Triple TheTriple = Actions.Context.getTargetInfo().getTriple();
+ llvm::Triple::ArchType ArchTy = TheTriple.getArch();
+ bool UnsupportedArch = (ArchTy != llvm::Triple::x86 &&
+ ArchTy != llvm::Triple::x86_64);
+ if (UnsupportedArch)
+ Diag(AsmLoc, diag::err_msasm_unsupported_arch) << TheTriple.getArchName();
+
+ // If we don't support assembly, or the assembly is empty, we don't
+ // need to instantiate the AsmParser, etc.
+ if (UnsupportedArch || AsmToks.empty()) {
+ return Actions.ActOnMSAsmStmt(AsmLoc, LBraceLoc, AsmToks, StringRef(),
+ /*NumOutputs*/ 0, /*NumInputs*/ 0,
+ ConstraintRefs, ClobberRefs, Exprs, EndLoc);
+ }
+
+ // Expand the tokens into a string buffer.
+ SmallString<512> AsmString;
+ SmallVector<unsigned, 8> TokOffsets;
+ if (buildMSAsmString(PP, AsmLoc, AsmToks, TokOffsets, AsmString))
+ return StmtError();
+
+ // Find the target and create the target specific parser.
+ std::string Error;
+ const std::string &TT = TheTriple.getTriple();
+ const llvm::Target *TheTarget = llvm::TargetRegistry::lookupTarget(TT, Error);
+
+ OwningPtr<llvm::MCAsmInfo> MAI(TheTarget->createMCAsmInfo(TT));
+ OwningPtr<llvm::MCRegisterInfo> MRI(TheTarget->createMCRegInfo(TT));
+ OwningPtr<llvm::MCObjectFileInfo> MOFI(new llvm::MCObjectFileInfo());
+ OwningPtr<llvm::MCSubtargetInfo>
+ STI(TheTarget->createMCSubtargetInfo(TT, "", ""));
+
+ llvm::SourceMgr TempSrcMgr;
+ llvm::MCContext Ctx(*MAI, *MRI, MOFI.get(), &TempSrcMgr);
+ llvm::MemoryBuffer *Buffer =
+ llvm::MemoryBuffer::getMemBuffer(AsmString, "<MS inline asm>");
+
+ // Tell SrcMgr about this buffer, which is what the parser will pick up.
+ TempSrcMgr.AddNewSourceBuffer(Buffer, llvm::SMLoc());
+
+ OwningPtr<llvm::MCStreamer> Str(createNullStreamer(Ctx));
+ OwningPtr<llvm::MCAsmParser>
+ Parser(createMCAsmParser(TempSrcMgr, Ctx, *Str.get(), *MAI));
+ OwningPtr<llvm::MCTargetAsmParser>
+ TargetParser(TheTarget->createMCAsmParser(*STI, *Parser));
+
+ // Get the instruction descriptor.
+ const llvm::MCInstrInfo *MII = TheTarget->createMCInstrInfo();
+ llvm::MCInstPrinter *IP =
+ TheTarget->createMCInstPrinter(1, *MAI, *MII, *MRI, *STI);
+
+ // Change to the Intel dialect.
+ Parser->setAssemblerDialect(1);
+ Parser->setTargetParser(*TargetParser.get());
+ Parser->setParsingInlineAsm(true);
+ TargetParser->setParsingInlineAsm(true);
+
+ ClangAsmParserCallback Callback(*this, AsmLoc, AsmString,
+ AsmToks, TokOffsets);
+ TargetParser->setSemaCallback(&Callback);
+ TempSrcMgr.setDiagHandler(ClangAsmParserCallback::DiagHandlerCallback,
+ &Callback);
+
+ unsigned NumOutputs;
+ unsigned NumInputs;
+ std::string AsmStringIR;
+ SmallVector<std::pair<void *, bool>, 4> OpExprs;
+ SmallVector<std::string, 4> Constraints;
+ SmallVector<std::string, 4> Clobbers;
+ if (Parser->parseMSInlineAsm(AsmLoc.getPtrEncoding(), AsmStringIR,
+ NumOutputs, NumInputs, OpExprs, Constraints,
+ Clobbers, MII, IP, Callback))
+ return StmtError();
+
+ // Build the vector of clobber StringRefs.
+ unsigned NumClobbers = Clobbers.size();
+ ClobberRefs.resize(NumClobbers);
+ for (unsigned i = 0; i != NumClobbers; ++i)
+ ClobberRefs[i] = StringRef(Clobbers[i]);
+
+ // Recast the void pointers and build the vector of constraint StringRefs.
+ unsigned NumExprs = NumOutputs + NumInputs;
+ ConstraintRefs.resize(NumExprs);
+ Exprs.resize(NumExprs);
+ for (unsigned i = 0, e = NumExprs; i != e; ++i) {
+ Expr *OpExpr = static_cast<Expr *>(OpExprs[i].first);
+ if (!OpExpr)
+ return StmtError();
+
+ // Need address of variable.
+ if (OpExprs[i].second)
+ OpExpr = Actions.BuildUnaryOp(getCurScope(), AsmLoc, UO_AddrOf, OpExpr)
+ .take();
+
+ ConstraintRefs[i] = StringRef(Constraints[i]);
+ Exprs[i] = OpExpr;
+ }
+
// FIXME: We should be passing source locations for better diagnostics.
- return Actions.ActOnMSAsmStmt(AsmLoc, LBraceLoc,
- llvm::makeArrayRef(AsmToks), EndLoc);
+ return Actions.ActOnMSAsmStmt(AsmLoc, LBraceLoc, AsmToks, AsmStringIR,
+ NumOutputs, NumInputs,
+ ConstraintRefs, ClobberRefs, Exprs, EndLoc);
}
/// ParseAsmStatement - Parse a GNU extended asm statement.
diff --git a/clang/lib/Sema/SemaDeclCXX.cpp b/clang/lib/Sema/SemaDeclCXX.cpp
index 48860e027b8..1c943786f0b 100644
--- a/clang/lib/Sema/SemaDeclCXX.cpp
+++ b/clang/lib/Sema/SemaDeclCXX.cpp
@@ -11718,8 +11718,7 @@ void Sema::MarkVTableUsed(SourceLocation Loc, CXXRecordDecl *Class,
// Ignore any vtable uses in unevaluated operands or for classes that do
// not have a vtable.
if (!Class->isDynamicClass() || Class->isDependentContext() ||
- CurContext->isDependentContext() ||
- ExprEvalContexts.back().Context == Unevaluated)
+ CurContext->isDependentContext() || isUnevaluatedContext())
return;
// Try to insert this class into the map.
diff --git a/clang/lib/Sema/SemaExpr.cpp b/clang/lib/Sema/SemaExpr.cpp
index 9f4f6d051c8..9a3c3b42897 100644
--- a/clang/lib/Sema/SemaExpr.cpp
+++ b/clang/lib/Sema/SemaExpr.cpp
@@ -10576,11 +10576,11 @@ namespace {
}
ExprResult Sema::TransformToPotentiallyEvaluated(Expr *E) {
- assert(ExprEvalContexts.back().Context == Unevaluated &&
+ assert(isUnevaluatedContext() &&
"Should only transform unevaluated expressions");
ExprEvalContexts.back().Context =
ExprEvalContexts[ExprEvalContexts.size()-2].Context;
- if (ExprEvalContexts.back().Context == Unevaluated)
+ if (isUnevaluatedContext())
return E;
return TransformToPE(*this).TransformExpr(E);
}
@@ -10612,7 +10612,7 @@ void Sema::PopExpressionEvaluationContext() {
ExpressionEvaluationContextRecord& Rec = ExprEvalContexts.back();
if (!Rec.Lambdas.empty()) {
- if (Rec.Context == Unevaluated) {
+ if (Rec.isUnevaluated()) {
// C++11 [expr.prim.lambda]p2:
// A lambda-expression shall not appear in an unevaluated operand
// (Clause 5).
@@ -10638,7 +10638,7 @@ void Sema::PopExpressionEvaluationContext() {
// temporaries that we may have created as part of the evaluation of
// the expression in that context: they aren't relevant because they
// will never be constructed.
- if (Rec.Context == Unevaluated || Rec.Context == ConstantEvaluated) {
+ if (Rec.isUnevaluated() || Rec.Context == ConstantEvaluated) {
ExprCleanupObjects.erase(ExprCleanupObjects.begin() + Rec.NumCleanupObjects,
ExprCleanupObjects.end());
ExprNeedsCleanups = Rec.ParentNeedsCleanups;
@@ -10677,6 +10677,7 @@ static bool IsPotentiallyEvaluatedContext(Sema &SemaRef) {
switch (SemaRef.ExprEvalContexts.back().Context) {
case Sema::Unevaluated:
+ case Sema::UnevaluatedAbstract:
// We are in an expression that is not potentially evaluated; do nothing.
// (Depending on how you read the standard, we actually do need to do
// something here for null pointer constants, but the standard's
@@ -11761,6 +11762,7 @@ bool Sema::DiagRuntimeBehavior(SourceLocation Loc, const Stmt *Statement,
const PartialDiagnostic &PD) {
switch (ExprEvalContexts.back().Context) {
case Unevaluated:
+ case UnevaluatedAbstract:
// The argument will never be evaluated, so don't complain.
break;
diff --git a/clang/lib/Sema/SemaExprCXX.cpp b/clang/lib/Sema/SemaExprCXX.cpp
index 56c418720a8..85f6bfd9c33 100644
--- a/clang/lib/Sema/SemaExprCXX.cpp
+++ b/clang/lib/Sema/SemaExprCXX.cpp
@@ -742,7 +742,7 @@ static Expr *captureThis(ASTContext &Context, RecordDecl *RD,
void Sema::CheckCXXThisCapture(SourceLocation Loc, bool Explicit) {
// We don't need to capture this in an unevaluated context.
- if (ExprEvalContexts.back().Context == Unevaluated && !Explicit)
+ if (isUnevaluatedContext() && !Explicit)
return;
// Otherwise, check that we can capture 'this'.
diff --git a/clang/lib/Sema/SemaExprMember.cpp b/clang/lib/Sema/SemaExprMember.cpp
index c3642f56ce2..545ac2746d6 100644
--- a/clang/lib/Sema/SemaExprMember.cpp
+++ b/clang/lib/Sema/SemaExprMember.cpp
@@ -60,6 +60,9 @@ enum IMAKind {
/// The reference may be to an unresolved using declaration.
IMA_Unresolved,
+ /// The reference is a contextually-permitted abstract member reference.
+ IMA_Abstract,
+
/// The reference may be to an unresolved using declaration and the
/// context is not an instance method.
IMA_Unresolved_StaticContext,
@@ -120,19 +123,32 @@ static IMAKind ClassifyImplicitMemberAccess(Sema &SemaRef,
// member reference.
if (Classes.empty())
return IMA_Static;
-
- bool IsCXX11UnevaluatedField = false;
- if (SemaRef.getLangOpts().CPlusPlus11 && isField) {
- // C++11 [expr.prim.general]p12:
- // An id-expression that denotes a non-static data member or non-static
- // member function of a class can only be used:
- // (...)
- // - if that id-expression denotes a non-static data member and it
- // appears in an unevaluated operand.
- const Sema::ExpressionEvaluationContextRecord& record
- = SemaRef.ExprEvalContexts.back();
- if (record.Context == Sema::Unevaluated)
- IsCXX11UnevaluatedField = true;
+
+ // C++11 [expr.prim.general]p12:
+ // An id-expression that denotes a non-static data member or non-static
+ // member function of a class can only be used:
+ // (...)
+ // - if that id-expression denotes a non-static data member and it
+ // appears in an unevaluated operand.
+ //
+ // This rule is specific to C++11. However, we also permit this form
+ // in unevaluated inline assembly operands, like the operand to a SIZE.
+ IMAKind AbstractInstanceResult = IMA_Static; // happens to be 'false'
+ assert(!AbstractInstanceResult);
+ switch (SemaRef.ExprEvalContexts.back().Context) {
+ case Sema::Unevaluated:
+ if (isField && SemaRef.getLangOpts().CPlusPlus11)
+ AbstractInstanceResult = IMA_Field_Uneval_Context;
+ break;
+
+ case Sema::UnevaluatedAbstract:
+ AbstractInstanceResult = IMA_Abstract;
+ break;
+
+ case Sema::ConstantEvaluated:
+ case Sema::PotentiallyEvaluated:
+ case Sema::PotentiallyEvaluatedIfUsed:
+ break;
}
// If the current context is not an instance method, it can't be
@@ -141,8 +157,8 @@ static IMAKind ClassifyImplicitMemberAccess(Sema &SemaRef,
if (hasNonInstance)
return IMA_Mixed_StaticContext;
- return IsCXX11UnevaluatedField ? IMA_Field_Uneval_Context
- : IMA_Error_StaticContext;
+ return AbstractInstanceResult ? AbstractInstanceResult
+ : IMA_Error_StaticContext;
}
CXXRecordDecl *contextClass;
@@ -172,8 +188,8 @@ static IMAKind ClassifyImplicitMemberAccess(Sema &SemaRef,
// which case it's an error if any of those members are selected).
if (isProvablyNotDerivedFrom(SemaRef, contextClass, Classes))
return hasNonInstance ? IMA_Mixed_Unrelated :
- IsCXX11UnevaluatedField ? IMA_Field_Uneval_Context :
- IMA_Error_Unrelated;
+ AbstractInstanceResult ? AbstractInstanceResult :
+ IMA_Error_Unrelated;
return (hasNonInstance ? IMA_Mixed : IMA_Instance);
}
@@ -233,6 +249,7 @@ Sema::BuildPossibleImplicitMemberExpr(const CXXScopeSpec &SS,
<< R.getLookupNameInfo().getName();
// Fall through.
case IMA_Static:
+ case IMA_Abstract:
case IMA_Mixed_StaticContext:
case IMA_Unresolved_StaticContext:
if (TemplateArgs || TemplateKWLoc.isValid())
diff --git a/clang/lib/Sema/SemaLambda.cpp b/clang/lib/Sema/SemaLambda.cpp
index 77e6bfd0866..d16bb6a052c 100644
--- a/clang/lib/Sema/SemaLambda.cpp
+++ b/clang/lib/Sema/SemaLambda.cpp
@@ -950,6 +950,7 @@ ExprResult Sema::ActOnLambdaExpr(SourceLocation StartLoc, Stmt *Body,
if (!CurContext->isDependentContext()) {
switch (ExprEvalContexts.back().Context) {
case Unevaluated:
+ case UnevaluatedAbstract:
// We don't actually diagnose this case immediately, because we
// could be within a context where we might find out later that
// the expression is potentially evaluated (e.g., for typeid).
diff --git a/clang/lib/Sema/SemaStmt.cpp b/clang/lib/Sema/SemaStmt.cpp
index 673b84e8153..8dfc8b9290b 100644
--- a/clang/lib/Sema/SemaStmt.cpp
+++ b/clang/lib/Sema/SemaStmt.cpp
@@ -22,7 +22,6 @@
#include "clang/AST/StmtCXX.h"
#include "clang/AST/StmtObjC.h"
#include "clang/AST/TypeLoc.h"
-#include "clang/Basic/TargetInfo.h"
#include "clang/Lex/Preprocessor.h"
#include "clang/Sema/Initialization.h"
#include "clang/Sema/Lookup.h"
diff --git a/clang/lib/Sema/SemaStmtAsm.cpp b/clang/lib/Sema/SemaStmtAsm.cpp
index 14ee67bfc32..fce95bebd1a 100644
--- a/clang/lib/Sema/SemaStmtAsm.cpp
+++ b/clang/lib/Sema/SemaStmtAsm.cpp
@@ -22,18 +22,6 @@
#include "clang/Sema/ScopeInfo.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/BitVector.h"
-#include "llvm/ADT/SmallString.h"
-#include "llvm/MC/MCAsmInfo.h"
-#include "llvm/MC/MCContext.h"
-#include "llvm/MC/MCObjectFileInfo.h"
-#include "llvm/MC/MCParser/MCAsmParser.h"
-#include "llvm/MC/MCRegisterInfo.h"
-#include "llvm/MC/MCStreamer.h"
-#include "llvm/MC/MCSubtargetInfo.h"
-#include "llvm/MC/MCTargetAsmParser.h"
-#include "llvm/Support/SourceMgr.h"
-#include "llvm/Support/TargetRegistry.h"
-#include "llvm/Support/TargetSelect.h"
using namespace clang;
using namespace sema;
@@ -381,180 +369,60 @@ StmtResult Sema::ActOnGCCAsmStmt(SourceLocation AsmLoc, bool IsSimple,
return Owned(NS);
}
-// getSpelling - Get the spelling of the AsmTok token.
-static StringRef getSpelling(Sema &SemaRef, Token AsmTok) {
- StringRef Asm;
- SmallString<512> TokenBuf;
- TokenBuf.resize(512);
- bool StringInvalid = false;
- Asm = SemaRef.PP.getSpelling(AsmTok, TokenBuf, &StringInvalid);
- assert (!StringInvalid && "Expected valid string!");
- return Asm;
-}
+ExprResult Sema::LookupInlineAsmIdentifier(CXXScopeSpec &SS,
+ SourceLocation TemplateKWLoc,
+ UnqualifiedId &Id,
+ InlineAsmIdentifierInfo &Info,
+ bool IsUnevaluatedContext) {
+ Info.clear();
-// Build the inline assembly string. Returns true on error.
-static bool buildMSAsmString(Sema &SemaRef,
- SourceLocation AsmLoc,
- ArrayRef<Token> AsmToks,
- SmallVectorImpl<unsigned> &TokOffsets,
- std::string &AsmString) {
- assert (!AsmToks.empty() && "Didn't expect an empty AsmToks!");
-
- SmallString<512> Asm;
- for (unsigned i = 0, e = AsmToks.size(); i < e; ++i) {
- bool isNewAsm = ((i == 0) ||
- AsmToks[i].isAtStartOfLine() ||
- AsmToks[i].is(tok::kw_asm));
- if (isNewAsm) {
- if (i != 0)
- Asm += "\n\t";
-
- if (AsmToks[i].is(tok::kw_asm)) {
- i++; // Skip __asm
- if (i == e) {
- SemaRef.Diag(AsmLoc, diag::err_asm_empty);
- return true;
- }
+ if (IsUnevaluatedContext)
+ PushExpressionEvaluationContext(UnevaluatedAbstract,
+ ReuseLambdaContextDecl);
- }
- }
+ ExprResult Result = ActOnIdExpression(getCurScope(), SS, TemplateKWLoc, Id,
+ /*trailing lparen*/ false,
+ /*is & operand*/ false);
- if (i && AsmToks[i].hasLeadingSpace() && !isNewAsm)
- Asm += ' ';
+ if (IsUnevaluatedContext)
+ PopExpressionEvaluationContext();
- StringRef Spelling = getSpelling(SemaRef, AsmToks[i]);
- Asm += Spelling;
- TokOffsets.push_back(Asm.size());
- }
- AsmString = Asm.str();
- return false;
-}
+ if (!Result.isUsable()) return Result;
-namespace {
-
-class MCAsmParserSemaCallbackImpl : public llvm::MCAsmParserSemaCallback {
- Sema &SemaRef;
- SourceLocation AsmLoc;
- ArrayRef<Token> AsmToks;
- ArrayRef<unsigned> TokOffsets;
-
-public:
- MCAsmParserSemaCallbackImpl(Sema &Ref, SourceLocation Loc,
- ArrayRef<Token> Toks,
- ArrayRef<unsigned> Offsets)
- : SemaRef(Ref), AsmLoc(Loc), AsmToks(Toks), TokOffsets(Offsets) { }
- ~MCAsmParserSemaCallbackImpl() {}
-
- void *LookupInlineAsmIdentifier(StringRef &LineBuf,
- InlineAsmIdentifierInfo &Info) {
- SourceLocation Loc = SourceLocation::getFromPtrEncoding(LineBuf.data());
- NamedDecl *OpDecl = SemaRef.LookupInlineAsmIdentifier(LineBuf, Loc, Info);
- Info.OpDecl = static_cast<void *>(OpDecl);
- return static_cast<void *>(OpDecl);
- }
+ Result = CheckPlaceholderExpr(Result.take());
+ if (!Result.isUsable()) return Result;
- bool LookupInlineAsmField(StringRef Base, StringRef Member,
- unsigned &Offset) {
- return SemaRef.LookupInlineAsmField(Base, Member, Offset, AsmLoc);
- }
+ QualType T = Result.get()->getType();
- static void MSAsmDiagHandlerCallback(const llvm::SMDiagnostic &D,
- void *Context) {
- ((MCAsmParserSemaCallbackImpl*)Context)->MSAsmDiagHandler(D);
+ // For now, reject dependent types.
+ if (T->isDependentType()) {
+ Diag(Id.getLocStart(), diag::err_asm_incomplete_type) << T;
+ return ExprError();
}
- void MSAsmDiagHandler(const llvm::SMDiagnostic &D) {
- // Compute an offset into the inline asm buffer.
- // FIXME: This isn't right if .macro is involved (but hopefully, no
- // real-world code does that).
- const llvm::SourceMgr &LSM = *D.getSourceMgr();
- const llvm::MemoryBuffer *LBuf =
- LSM.getMemoryBuffer(LSM.FindBufferContainingLoc(D.getLoc()));
- unsigned Offset = D.getLoc().getPointer() - LBuf->getBufferStart();
-
- // Figure out which token that offset points into.
- const unsigned *OffsetPtr =
- std::lower_bound(TokOffsets.begin(), TokOffsets.end(), Offset);
- unsigned TokIndex = OffsetPtr - TokOffsets.begin();
-
- // If we come up with an answer which seems sane, use it; otherwise,
- // just point at the __asm keyword.
- // FIXME: Assert the answer is sane once we handle .macro correctly.
- SourceLocation Loc = AsmLoc;
- if (TokIndex < AsmToks.size()) {
- const Token *Tok = &AsmToks[TokIndex];
- Loc = Tok->getLocation();
- Loc = Loc.getLocWithOffset(Offset - (*OffsetPtr - Tok->getLength()));
- }
- SemaRef.Diag(Loc, diag::err_inline_ms_asm_parsing) << D.getMessage();
- }
-};
-}
-
-// FIXME: Temporary hack until the frontend parser is hooked up to parse
-// variables.
-static bool isIdentifierChar(char c) {
- return isalnum(c) || c == '_' || c == '$' || c == '.' || c == '@';
-}
-
-static void lexIdentifier(const char *&CurPtr) {
- while (isIdentifierChar(*CurPtr))
- ++CurPtr;
-}
-
-static StringRef parseIdentifier(StringRef Identifier) {
- const char *StartPtr = Identifier.data(), *EndPtr, *CurPtr;
- EndPtr = StartPtr + Identifier.size();
- CurPtr = StartPtr;
- while(CurPtr <= EndPtr) {
- if (isIdentifierChar(*CurPtr))
- lexIdentifier(CurPtr);
- else if (CurPtr[0] == ':' && CurPtr[1] == ':')
- CurPtr += 2;
- else
- break;
+ // Any sort of function type is fine.
+ if (T->isFunctionType()) {
+ return Result;
}
- return StringRef(StartPtr, CurPtr - StartPtr);
-}
-NamedDecl *Sema::LookupInlineAsmIdentifier(StringRef &LineBuf, SourceLocation Loc,
- InlineAsmIdentifierInfo &Info) {
- Info.clear();
- // FIXME: Temporary hack until the frontend parser is hooked up to parse
- // variables.
- LineBuf = parseIdentifier(LineBuf);
- LookupResult Result(*this, &Context.Idents.get(LineBuf), Loc,
- Sema::LookupOrdinaryName);
-
- if (!LookupName(Result, getCurScope())) {
- // If we don't find anything, return null; the AsmParser will assume
- // it is a label of some sort.
- return 0;
+ // Otherwise, it needs to be a complete type.
+ if (RequireCompleteExprType(Result.get(), diag::err_asm_incomplete_type)) {
+ return ExprError();
}
- if (!Result.isSingleResult()) {
- // FIXME: Diagnose result.
- return 0;
+ // Compute the type size (and array length if applicable?).
+ Info.Type = Info.Size = Context.getTypeSizeInChars(T).getQuantity();
+ if (T->isArrayType()) {
+ const ArrayType *ATy = Context.getAsArrayType(T);
+ Info.Type = Context.getTypeSizeInChars(ATy->getElementType()).getQuantity();
+ Info.Length = Info.Size / Info.Type;
}
- NamedDecl *FoundDecl = Result.getFoundDecl();
- if (isa<FunctionDecl>(FoundDecl))
- return FoundDecl;
- if (VarDecl *Var = dyn_cast<VarDecl>(FoundDecl)) {
- QualType Ty = Var->getType();
- Info.Type = Info.Size = Context.getTypeSizeInChars(Ty).getQuantity();
- if (Ty->isArrayType()) {
- const ArrayType *ATy = Context.getAsArrayType(Ty);
- Info.Type = Context.getTypeSizeInChars(ATy->getElementType()).getQuantity();
- Info.Length = Info.Size / Info.Type;
- }
+ // We can work with the expression as long as it's not an r-value.
+ if (!Result.get()->isRValue())
Info.IsVarDecl = true;
- return FoundDecl;
- }
- // FIXME: Handle other kinds of results? (FieldDecl, etc.)
- // FIXME: Diagnose if we find something we can't handle, like a typedef.
- return 0;
+ return Result;
}
bool Sema::LookupInlineAsmField(StringRef Base, StringRef Member,
@@ -601,124 +469,18 @@ bool Sema::LookupInlineAsmField(StringRef Base, StringRef Member,
}
StmtResult Sema::ActOnMSAsmStmt(SourceLocation AsmLoc, SourceLocation LBraceLoc,
- ArrayRef<Token> AsmToks,SourceLocation EndLoc) {
- SmallVector<IdentifierInfo*, 4> Names;
- SmallVector<StringRef, 4> ConstraintRefs;
- SmallVector<Expr*, 4> Exprs;
- SmallVector<StringRef, 4> ClobberRefs;
-
- llvm::Triple TheTriple = Context.getTargetInfo().getTriple();
- llvm::Triple::ArchType ArchTy = TheTriple.getArch();
- bool UnsupportedArch = ArchTy != llvm::Triple::x86 &&
- ArchTy != llvm::Triple::x86_64;
- if (UnsupportedArch)
- Diag(AsmLoc, diag::err_msasm_unsupported_arch) << TheTriple.getArchName();
-
- // Empty asm statements don't need to instantiate the AsmParser, etc.
- if (UnsupportedArch || AsmToks.empty()) {
- StringRef EmptyAsmStr;
- MSAsmStmt *NS =
- new (Context) MSAsmStmt(Context, AsmLoc, LBraceLoc, /*IsSimple*/ true,
- /*IsVolatile*/ true, AsmToks, /*NumOutputs*/ 0,
- /*NumInputs*/ 0, Names, ConstraintRefs, Exprs,
- EmptyAsmStr, ClobberRefs, EndLoc);
- return Owned(NS);
- }
-
- std::string AsmString;
- SmallVector<unsigned, 8> TokOffsets;
- if (buildMSAsmString(*this, AsmLoc, AsmToks, TokOffsets, AsmString))
- return StmtError();
-
- // Get the target specific parser.
- std::string Error;
- const std::string &TT = TheTriple.getTriple();
- const llvm::Target *TheTarget(llvm::TargetRegistry::lookupTarget(TT, Error));
-
- OwningPtr<llvm::MCAsmInfo> MAI(TheTarget->createMCAsmInfo(TT));
- OwningPtr<llvm::MCRegisterInfo> MRI(TheTarget->createMCRegInfo(TT));
- OwningPtr<llvm::MCObjectFileInfo> MOFI(new llvm::MCObjectFileInfo());
- OwningPtr<llvm::MCSubtargetInfo>
- STI(TheTarget->createMCSubtargetInfo(TT, "", ""));
-
- llvm::SourceMgr SrcMgr;
- llvm::MCContext Ctx(*MAI, *MRI, MOFI.get(), &SrcMgr);
- llvm::MemoryBuffer *Buffer =
- llvm::MemoryBuffer::getMemBuffer(AsmString, "<MS inline asm>");
-
- // Tell SrcMgr about this buffer, which is what the parser will pick up.
- SrcMgr.AddNewSourceBuffer(Buffer, llvm::SMLoc());
-
- OwningPtr<llvm::MCStreamer> Str(createNullStreamer(Ctx));
- OwningPtr<llvm::MCAsmParser>
- Parser(createMCAsmParser(SrcMgr, Ctx, *Str.get(), *MAI));
- OwningPtr<llvm::MCTargetAsmParser>
- TargetParser(TheTarget->createMCAsmParser(*STI, *Parser));
-
- // Get the instruction descriptor.
- const llvm::MCInstrInfo *MII = TheTarget->createMCInstrInfo();
- llvm::MCInstPrinter *IP =
- TheTarget->createMCInstPrinter(1, *MAI, *MII, *MRI, *STI);
-
- // Change to the Intel dialect.
- Parser->setAssemblerDialect(1);
- Parser->setTargetParser(*TargetParser.get());
- Parser->setParsingInlineAsm(true);
- TargetParser->setParsingInlineAsm(true);
-
- MCAsmParserSemaCallbackImpl MCAPSI(*this, AsmLoc, AsmToks, TokOffsets);
- TargetParser->setSemaCallback(&MCAPSI);
- SrcMgr.setDiagHandler(MCAsmParserSemaCallbackImpl::MSAsmDiagHandlerCallback,
- &MCAPSI);
-
- unsigned NumOutputs;
- unsigned NumInputs;
- std::string AsmStringIR;
- SmallVector<std::pair<void *, bool>, 4> OpDecls;
- SmallVector<std::string, 4> Constraints;
- SmallVector<std::string, 4> Clobbers;
- if (Parser->parseMSInlineAsm(AsmLoc.getPtrEncoding(), AsmStringIR,
- NumOutputs, NumInputs, OpDecls, Constraints,
- Clobbers, MII, IP, MCAPSI))
- return StmtError();
-
- // Build the vector of clobber StringRefs.
- unsigned NumClobbers = Clobbers.size();
- ClobberRefs.resize(NumClobbers);
- for (unsigned i = 0; i != NumClobbers; ++i)
- ClobberRefs[i] = StringRef(Clobbers[i]);
-
- // Recast the void pointers and build the vector of constraint StringRefs.
- unsigned NumExprs = NumOutputs + NumInputs;
- Names.resize(NumExprs);
- ConstraintRefs.resize(NumExprs);
- Exprs.resize(NumExprs);
- for (unsigned i = 0, e = NumExprs; i != e; ++i) {
- NamedDecl *OpDecl = static_cast<NamedDecl *>(OpDecls[i].first);
- if (!OpDecl)
- return StmtError();
-
- DeclarationNameInfo NameInfo(OpDecl->getDeclName(), AsmLoc);
- ExprResult OpExpr = BuildDeclarationNameExpr(CXXScopeSpec(), NameInfo,
- OpDecl);
- if (OpExpr.isInvalid())
- return StmtError();
-
- // Need address of variable.
- if (OpDecls[i].second)
- OpExpr = BuildUnaryOp(getCurScope(), AsmLoc, clang::UO_AddrOf,
- OpExpr.take());
-
- Names[i] = OpDecl->getIdentifier();
- ConstraintRefs[i] = StringRef(Constraints[i]);
- Exprs[i] = OpExpr.take();
- }
-
- bool IsSimple = NumExprs > 0;
+ ArrayRef<Token> AsmToks,
+ StringRef AsmString,
+ unsigned NumOutputs, unsigned NumInputs,
+ ArrayRef<StringRef> Constraints,
+ ArrayRef<StringRef> Clobbers,
+ ArrayRef<Expr*> Exprs,
+ SourceLocation EndLoc) {
+ bool IsSimple = (NumOutputs != 0 || NumInputs != 0);
MSAsmStmt *NS =
new (Context) MSAsmStmt(Context, AsmLoc, LBraceLoc, IsSimple,
/*IsVolatile*/ true, AsmToks, NumOutputs, NumInputs,
- Names, ConstraintRefs, Exprs, AsmStringIR,
- ClobberRefs, EndLoc);
+ Constraints, Exprs, AsmString,
+ Clobbers, EndLoc);
return Owned(NS);
}
diff --git a/clang/lib/Sema/TreeTransform.h b/clang/lib/Sema/TreeTransform.h
index fda154820a1..99cb2829bfc 100644
--- a/clang/lib/Sema/TreeTransform.h
+++ b/clang/lib/Sema/TreeTransform.h
@@ -1190,8 +1190,16 @@ public:
/// By default, performs semantic analysis to build the new statement.
/// Subclasses may override this routine to provide different behavior.
StmtResult RebuildMSAsmStmt(SourceLocation AsmLoc, SourceLocation LBraceLoc,
- ArrayRef<Token> AsmToks, SourceLocation EndLoc) {
- return getSema().ActOnMSAsmStmt(AsmLoc, LBraceLoc, AsmToks, EndLoc);
+ ArrayRef<Token> AsmToks,
+ StringRef AsmString,
+ unsigned NumOutputs, unsigned NumInputs,
+ ArrayRef<StringRef> Constraints,
+ ArrayRef<StringRef> Clobbers,
+ ArrayRef<Expr*> Exprs,
+ SourceLocation EndLoc) {
+ return getSema().ActOnMSAsmStmt(AsmLoc, LBraceLoc, AsmToks, AsmString,
+ NumOutputs, NumInputs,
+ Constraints, Clobbers, Exprs, EndLoc);
}
/// \brief Build a new Objective-C \@try statement.
@@ -5649,8 +5657,30 @@ TreeTransform<Derived>::TransformMSAsmStmt(MSAsmStmt *S) {
ArrayRef<Token> AsmToks =
llvm::makeArrayRef(S->getAsmToks(), S->getNumAsmToks());
+ bool HadError = false, HadChange = false;
+
+ ArrayRef<Expr*> SrcExprs = S->getAllExprs();
+ SmallVector<Expr*, 8> TransformedExprs;
+ TransformedExprs.reserve(SrcExprs.size());
+ for (unsigned i = 0, e = SrcExprs.size(); i != e; ++i) {
+ ExprResult Result = getDerived().TransformExpr(SrcExprs[i]);
+ if (!Result.isUsable()) {
+ HadError = true;
+ } else {
+ HadChange |= (Result.get() != SrcExprs[i]);
+ TransformedExprs.push_back(Result.take());
+ }
+ }
+
+ if (HadError) return StmtError();
+ if (!HadChange && !getDerived().AlwaysRebuild())
+ return Owned(S);
+
return getDerived().RebuildMSAsmStmt(S->getAsmLoc(), S->getLBraceLoc(),
- AsmToks, S->getEndLoc());
+ AsmToks, S->getAsmString(),
+ S->getNumOutputs(), S->getNumInputs(),
+ S->getAllConstraints(), S->getClobbers(),
+ TransformedExprs, S->getEndLoc());
}
template<typename Derived>
diff --git a/clang/lib/Serialization/ASTReader.cpp b/clang/lib/Serialization/ASTReader.cpp
index a5fd2e324f2..a766bd2af4b 100644
--- a/clang/lib/Serialization/ASTReader.cpp
+++ b/clang/lib/Serialization/ASTReader.cpp
@@ -1103,6 +1103,19 @@ bool ASTReader::ReadBlockAbbrevs(BitstreamCursor &Cursor, unsigned BlockID) {
}
}
+Token ASTReader::ReadToken(ModuleFile &F, const RecordData &Record,
+ unsigned &Idx) {
+ Token Tok;
+ Tok.startToken();
+ Tok.setLocation(ReadSourceLocation(F, Record, Idx));
+ Tok.setLength(Record[Idx++]);
+ if (IdentifierInfo *II = getLocalIdentifier(F, Record[Idx++]))
+ Tok.setIdentifierInfo(II);
+ Tok.setKind((tok::TokenKind)Record[Idx++]);
+ Tok.setFlag((Token::TokenFlags)Record[Idx++]);
+ return Tok;
+}
+
MacroInfo *ASTReader::ReadMacroRecord(ModuleFile &F, uint64_t Offset) {
BitstreamCursor &Stream = F.MacroCursor;
@@ -1203,14 +1216,8 @@ MacroInfo *ASTReader::ReadMacroRecord(ModuleFile &F, uint64_t Offset) {
// erroneous, just pretend we didn't see this.
if (Macro == 0) break;
- Token Tok;
- Tok.startToken();
- Tok.setLocation(ReadSourceLocation(F, Record[0]));
- Tok.setLength(Record[1]);
- if (IdentifierInfo *II = getLocalIdentifier(F, Record[2]))
- Tok.setIdentifierInfo(II);
- Tok.setKind((tok::TokenKind)Record[3]);
- Tok.setFlag((Token::TokenFlags)Record[4]);
+ unsigned Idx = 0;
+ Token Tok = ReadToken(F, Record, Idx);
Macro->AddTokenToBody(Tok);
break;
}
diff --git a/clang/lib/Serialization/ASTReaderStmt.cpp b/clang/lib/Serialization/ASTReaderStmt.cpp
index c7748b7f6ba..fd60ec4fd5e 100644
--- a/clang/lib/Serialization/ASTReaderStmt.cpp
+++ b/clang/lib/Serialization/ASTReaderStmt.cpp
@@ -17,6 +17,7 @@
#include "clang/AST/DeclCXX.h"
#include "clang/AST/DeclTemplate.h"
#include "clang/AST/StmtVisitor.h"
+#include "clang/Lex/Token.h"
#include "llvm/ADT/SmallString.h"
using namespace clang;
using namespace clang::serialization;
@@ -32,14 +33,22 @@ namespace clang {
const ASTReader::RecordData &Record;
unsigned &Idx;
+ Token ReadToken(const RecordData &R, unsigned &I) {
+ return Reader.ReadToken(F, R, I);
+ }
+
SourceLocation ReadSourceLocation(const RecordData &R, unsigned &I) {
return Reader.ReadSourceLocation(F, R, I);
}
-
+
SourceRange ReadSourceRange(const RecordData &R, unsigned &I) {
return Reader.ReadSourceRange(F, R, I);
}
-
+
+ std::string ReadString(const RecordData &R, unsigned &I) {
+ return Reader.ReadString(R, I);
+ }
+
TypeSourceInfo *GetTypeSourceInfo(const RecordData &R, unsigned &I) {
return Reader.GetTypeSourceInfo(F, R, I);
}
@@ -286,18 +295,25 @@ void ASTStmtReader::VisitDeclStmt(DeclStmt *S) {
}
}
-void ASTStmtReader::VisitGCCAsmStmt(GCCAsmStmt *S) {
+void ASTStmtReader::VisitAsmStmt(AsmStmt *S) {
VisitStmt(S);
- unsigned NumOutputs = Record[Idx++];
- unsigned NumInputs = Record[Idx++];
- unsigned NumClobbers = Record[Idx++];
+ S->NumOutputs = Record[Idx++];
+ S->NumInputs = Record[Idx++];
+ S->NumClobbers = Record[Idx++];
S->setAsmLoc(ReadSourceLocation(Record, Idx));
- S->setRParenLoc(ReadSourceLocation(Record, Idx));
S->setVolatile(Record[Idx++]);
S->setSimple(Record[Idx++]);
+}
+void ASTStmtReader::VisitGCCAsmStmt(GCCAsmStmt *S) {
+ VisitAsmStmt(S);
+ S->setRParenLoc(ReadSourceLocation(Record, Idx));
S->setAsmString(cast_or_null<StringLiteral>(Reader.ReadSubStmt()));
+ unsigned NumOutputs = S->getNumOutputs();
+ unsigned NumInputs = S->getNumInputs();
+ unsigned NumClobbers = S->getNumClobbers();
+
// Outputs and inputs
SmallVector<IdentifierInfo *, 16> Names;
SmallVector<StringLiteral*, 16> Constraints;
@@ -320,8 +336,48 @@ void ASTStmtReader::VisitGCCAsmStmt(GCCAsmStmt *S) {
}
void ASTStmtReader::VisitMSAsmStmt(MSAsmStmt *S) {
- // FIXME: Statement reader not yet implemented for MS style inline asm.
- VisitStmt(S);
+ VisitAsmStmt(S);
+ S->LBraceLoc = ReadSourceLocation(Record, Idx);
+ S->EndLoc = ReadSourceLocation(Record, Idx);
+ S->NumAsmToks = Record[Idx++];
+ std::string AsmStr = ReadString(Record, Idx);
+
+ // Read the tokens.
+ SmallVector<Token, 16> AsmToks;
+ AsmToks.reserve(S->NumAsmToks);
+ for (unsigned i = 0, e = S->NumAsmToks; i != e; ++i) {
+ AsmToks.push_back(ReadToken(Record, Idx));
+ }
+
+ // The calls to reserve() for the FooData vectors are mandatory to
+ // prevent dead StringRefs in the Foo vectors.
+
+ // Read the clobbers.
+ SmallVector<std::string, 16> ClobbersData;
+ SmallVector<StringRef, 16> Clobbers;
+ ClobbersData.reserve(S->NumClobbers);
+ Clobbers.reserve(S->NumClobbers);
+ for (unsigned i = 0, e = S->NumClobbers; i != e; ++i) {
+ ClobbersData.push_back(ReadString(Record, Idx));
+ Clobbers.push_back(ClobbersData.back());
+ }
+
+ // Read the operands.
+ unsigned NumOperands = S->NumOutputs + S->NumInputs;
+ SmallVector<Expr*, 16> Exprs;
+ SmallVector<std::string, 16> ConstraintsData;
+ SmallVector<StringRef, 16> Constraints;
+ Exprs.reserve(NumOperands);
+ ConstraintsData.reserve(NumOperands);
+ Constraints.reserve(NumOperands);
+ for (unsigned i = 0; i != NumOperands; ++i) {
+ Exprs.push_back(cast<Expr>(Reader.ReadSubStmt()));
+ ConstraintsData.push_back(ReadString(Record, Idx));
+ Constraints.push_back(ConstraintsData.back());
+ }
+
+ S->initialize(Reader.getContext(), AsmStr, AsmToks,
+ Constraints, Exprs, Clobbers);
}
void ASTStmtReader::VisitCapturedStmt(CapturedStmt *S) {
diff --git a/clang/lib/Serialization/ASTWriter.cpp b/clang/lib/Serialization/ASTWriter.cpp
index 2d691b11aaa..b8ada04e5d8 100644
--- a/clang/lib/Serialization/ASTWriter.cpp
+++ b/clang/lib/Serialization/ASTWriter.cpp
@@ -2012,18 +2012,7 @@ void ASTWriter::WritePreprocessor(const Preprocessor &PP, bool IsModule) {
// tokens in it because they are created by the parser, and thus can't
// be in a macro definition.
const Token &Tok = MI->getReplacementToken(TokNo);
-
- Record.push_back(Tok.getLocation().getRawEncoding());
- Record.push_back(Tok.getLength());
-
- // FIXME: When reading literal tokens, reconstruct the literal pointer
- // if it is needed.
- AddIdentifierRef(Tok.getIdentifierInfo(), Record);
- // FIXME: Should translate token kind to a stable encoding.
- Record.push_back(Tok.getKind());
- // FIXME: Should translate token flags to a stable encoding.
- Record.push_back(Tok.getFlags());
-
+ AddToken(Tok, Record);
Stream.EmitRecord(PP_TOKEN, Record);
Record.clear();
}
@@ -3661,6 +3650,19 @@ void ASTWriter::WriteAttributes(ArrayRef<const Attr*> Attrs,
}
}
+void ASTWriter::AddToken(const Token &Tok, RecordDataImpl &Record) {
+ AddSourceLocation(Tok.getLocation(), Record);
+ Record.push_back(Tok.getLength());
+
+ // FIXME: When reading literal tokens, reconstruct the literal pointer
+ // if it is needed.
+ AddIdentifierRef(Tok.getIdentifierInfo(), Record);
+ // FIXME: Should translate token kind to a stable encoding.
+ Record.push_back(Tok.getKind());
+ // FIXME: Should translate token flags to a stable encoding.
+ Record.push_back(Tok.getFlags());
+}
+
void ASTWriter::AddString(StringRef Str, RecordDataImpl &Record) {
Record.push_back(Str.size());
Record.insert(Record.end(), Str.begin(), Str.end());
diff --git a/clang/lib/Serialization/ASTWriterStmt.cpp b/clang/lib/Serialization/ASTWriterStmt.cpp
index 5c8e2133843..832bbf69906 100644
--- a/clang/lib/Serialization/ASTWriterStmt.cpp
+++ b/clang/lib/Serialization/ASTWriterStmt.cpp
@@ -17,6 +17,7 @@
#include "clang/AST/DeclObjC.h"
#include "clang/AST/DeclTemplate.h"
#include "clang/AST/StmtVisitor.h"
+#include "clang/Lex/Token.h"
#include "llvm/Bitcode/BitstreamWriter.h"
using namespace clang;
@@ -216,15 +217,19 @@ void ASTStmtWriter::VisitDeclStmt(DeclStmt *S) {
Code = serialization::STMT_DECL;
}
-void ASTStmtWriter::VisitGCCAsmStmt(GCCAsmStmt *S) {
+void ASTStmtWriter::VisitAsmStmt(AsmStmt *S) {
VisitStmt(S);
Record.push_back(S->getNumOutputs());
Record.push_back(S->getNumInputs());
Record.push_back(S->getNumClobbers());
Writer.AddSourceLocation(S->getAsmLoc(), Record);
- Writer.AddSourceLocation(S->getRParenLoc(), Record);
Record.push_back(S->isVolatile());
Record.push_back(S->isSimple());
+}
+
+void ASTStmtWriter::VisitGCCAsmStmt(GCCAsmStmt *S) {
+ VisitAsmStmt(S);
+ Writer.AddSourceLocation(S->getRParenLoc(), Record);
Writer.AddStmt(S->getAsmString());
// Outputs
@@ -249,8 +254,33 @@ void ASTStmtWriter::VisitGCCAsmStmt(GCCAsmStmt *S) {
}
void ASTStmtWriter::VisitMSAsmStmt(MSAsmStmt *S) {
- // FIXME: Statement writer not yet implemented for MS style inline asm.
- VisitStmt(S);
+ VisitAsmStmt(S);
+ Writer.AddSourceLocation(S->getLBraceLoc(), Record);
+ Writer.AddSourceLocation(S->getEndLoc(), Record);
+ Record.push_back(S->getNumAsmToks());
+ Writer.AddString(S->getAsmString(), Record);
+
+ // Tokens
+ for (unsigned I = 0, N = S->getNumAsmToks(); I != N; ++I) {
+ Writer.AddToken(S->getAsmToks()[I], Record);
+ }
+
+ // Clobbers
+ for (unsigned I = 0, N = S->getNumClobbers(); I != N; ++I) {
+ Writer.AddString(S->getClobber(I), Record);
+ }
+
+ // Outputs
+ for (unsigned I = 0, N = S->getNumOutputs(); I != N; ++I) {
+ Writer.AddStmt(S->getOutputExpr(I));
+ Writer.AddString(S->getOutputConstraint(I), Record);
+ }
+
+ // Inputs
+ for (unsigned I = 0, N = S->getNumInputs(); I != N; ++I) {
+ Writer.AddStmt(S->getInputExpr(I));
+ Writer.AddString(S->getInputConstraint(I), Record);
+ }
Code = serialization::STMT_MSASM;
}
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