1414
1515#include " clang/AST/ASTContext.h"
1616#include " clang/AST/DeclBase.h"
17- #include " clang/AST/GlobalDecl.h"
18- #include " clang/Basic/SourceManager.h"
19- #include " clang/CIR/Dialect/IR/CIRDialect.h"
2017
2118#include " mlir/IR/BuiltinOps.h"
2219#include " mlir/IR/Location.h"
@@ -27,134 +24,9 @@ CIRGenModule::CIRGenModule(mlir::MLIRContext &context,
2724 clang::ASTContext &astctx,
2825 const clang::CodeGenOptions &cgo,
2926 DiagnosticsEngine &diags)
30- : builder(&context), astCtx(astctx), langOpts(astctx.getLangOpts()),
31- theModule{mlir::ModuleOp::create (mlir::UnknownLoc::get (&context))},
32- diags (diags), target(astCtx.getTargetInfo()) {}
33-
34- mlir::Location CIRGenModule::getLoc (SourceLocation cLoc) {
35- assert (cLoc.isValid () && " expected valid source location"
36- const SourceManager &sm = astCtx.getSourceManager ();
37- PresumedLoc pLoc = sm.getPresumedLoc (cLoc);
38- StringRef filename = pLoc.getFilename ();
39- return mlir::FileLineColLoc::get (builder.getStringAttr (filename),
40- pLoc.getLine (), pLoc.getColumn ());
41- }
42-
43- mlir::Location CIRGenModule::getLoc (SourceRange cRange) {
44- assert (cRange.isValid () && " expected a valid source range"
45- mlir::Location begin = getLoc (cRange.getBegin ());
46- mlir::Location end = getLoc (cRange.getEnd ());
47- mlir::Attribute metadata;
48- return mlir::FusedLoc::get ({begin, end}, metadata, builder.getContext ());
49- }
50-
51- void CIRGenModule::buildGlobal (clang::GlobalDecl gd) {
52- const auto *global = cast<ValueDecl>(gd.getDecl ());
53-
54- if (const auto *fd = dyn_cast<FunctionDecl>(global)) {
55- // Update deferred annotations with the latest declaration if the function
56- // was already used or defined.
57- if (fd->
hasAttr <AnnotateAttr>())
58- errorNYI (fd->getSourceRange (), " deferredAnnotations"
59- if (!fd->doesThisDeclarationHaveABody ()) {
60- if (!fd->doesDeclarationForceExternallyVisibleDefinition ())
61- return ;
62-
63- errorNYI (fd->getSourceRange (),
64- " function declaration that forces code gen"
65- return ;
66- }
67- } else {
68- errorNYI (global->getSourceRange (), " global variable declaration"
69- }
70-
71- // TODO(CIR): Defer emitting some global definitions until later
72- buildGlobalDefinition (gd);
73- }
74-
75- void CIRGenModule::buildGlobalFunctionDefinition (clang::GlobalDecl gd,
76- mlir::Operation *op) {
77- auto const *funcDecl = cast<FunctionDecl>(gd.getDecl ());
78- auto funcOp = builder.create <mlir::cir::FuncOp>(
79- getLoc (funcDecl->getSourceRange ()), funcDecl->getIdentifier ()->getName ());
80- theModule.push_back (funcOp);
81- }
82-
83- void CIRGenModule::buildGlobalDefinition (clang::GlobalDecl gd,
84- mlir::Operation *op) {
85- const auto *decl = cast<ValueDecl>(gd.getDecl ());
86- if (const auto *fd = dyn_cast<FunctionDecl>(decl)) {
87- // TODO(CIR): Skip generation of CIR for functions with available_externally
88- // linkage at -O0.
89-
90- if (const auto *method = dyn_cast<CXXMethodDecl>(decl)) {
91- // Make sure to emit the definition(s) before we emit the thunks. This is
92- // necessary for the generation of certain thunks.
93- (void )method;
94- errorNYI (method->getSourceRange (), " member function"
95- return ;
96- }
97-
98- if (fd->isMultiVersion ())
99- errorNYI (fd->getSourceRange (), " multiversion functions"
100- buildGlobalFunctionDefinition (gd, op);
101- return ;
102- }
103-
104- llvm_unreachable (" Invalid argument to CIRGenModule::buildGlobalDefinition"
105- }
27+ : astCtx(astctx), langOpts(astctx.getLangOpts()),
28+ theModule{mlir::ModuleOp::create (mlir::UnknownLoc ())},
29+ target (astCtx.getTargetInfo()) {}
10630
10731// Emit code for a single top level declaration.
108- void CIRGenModule::buildTopLevelDecl (Decl *decl) {
109-
110- // Ignore dependent declarations.
111- if (decl->isTemplated ())
112- return ;
113-
114- switch (decl->getKind ()) {
115- default :
116- errorNYI (decl->getBeginLoc (), " declaration of kind"
117- decl->getDeclKindName ());
118- break ;
119-
120- case Decl::Function: {
121- auto *fd = cast<FunctionDecl>(decl);
122- // Consteval functions shouldn't be emitted.
123- if (!fd->isConsteval ())
124- buildGlobal (fd);
125- break ;
126- }
127- }
128- }
129-
130- DiagnosticBuilder CIRGenModule::errorNYI (llvm::StringRef feature) {
131- unsigned diagID = diags.getCustomDiagID (
132- DiagnosticsEngine::Error, " ClangIR code gen Not Yet Implemented: %0"
133- return diags.Report (diagID) << feature;
134- }
135-
136- DiagnosticBuilder CIRGenModule::errorNYI (SourceLocation loc,
137- llvm::StringRef feature) {
138- unsigned diagID = diags.getCustomDiagID (
139- DiagnosticsEngine::Error, " ClangIR code gen Not Yet Implemented: %0"
140- return diags.Report (loc, diagID) << feature;
141- }
142-
143- DiagnosticBuilder CIRGenModule::errorNYI (SourceLocation loc,
144- llvm::StringRef feature,
145- llvm::StringRef name) {
146- unsigned diagID = diags.getCustomDiagID (
147- DiagnosticsEngine::Error, " ClangIR code gen Not Yet Implemented: %0: %1"
148- return diags.Report (loc, diagID) << feature << name;
149- }
150-
151- DiagnosticBuilder CIRGenModule::errorNYI (SourceRange loc,
152- llvm::StringRef feature) {
153- return errorNYI (loc.getBegin (), feature) << loc;
154- }
155-
156- DiagnosticBuilder CIRGenModule::errorNYI (SourceRange loc,
157- llvm::StringRef feature,
158- llvm::StringRef name) {
159- return errorNYI (loc.getBegin (), feature, name) << loc;
160- }
32+ void CIRGenModule::buildTopLevelDecl (Decl *decl) {}
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