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-rw-r--r--lib/CodeGen/Mangle.cpp162
1 files changed, 56 insertions, 106 deletions
diff --git a/lib/CodeGen/Mangle.cpp b/lib/CodeGen/Mangle.cpp
index 7b4ac987ec..cb27f5c931 100644
--- a/lib/CodeGen/Mangle.cpp
+++ b/lib/CodeGen/Mangle.cpp
@@ -30,7 +30,7 @@ using namespace clang;
namespace {
/// CXXNameMangler - Manage the mangling of a single name.
-class VISIBILITY_HIDDEN CXXNameMangler {
+class CXXNameMangler {
MangleContext &Context;
llvm::raw_svector_ostream Out;
@@ -39,7 +39,7 @@ class VISIBILITY_HIDDEN CXXNameMangler {
llvm::DenseMap<uintptr_t, unsigned> Substitutions;
- public:
+public:
CXXNameMangler(MangleContext &C, llvm::SmallVectorImpl<char> &Res)
: Context(C), Out(Res), Structor(0), StructorType(0) { }
CXXNameMangler(MangleContext &C, llvm::SmallVectorImpl<char> &Res,
@@ -49,22 +49,15 @@ class VISIBILITY_HIDDEN CXXNameMangler {
const CXXDestructorDecl *D, CXXDtorType Type)
: Context(C), Out(Res), Structor(D), StructorType(Type) { }
+ llvm::raw_svector_ostream &getStream() { return Out; }
+
bool mangle(const NamedDecl *D);
void mangleCalloffset(int64_t nv, int64_t v);
- void mangleThunk(const FunctionDecl *FD, int64_t nv, int64_t v);
- void mangleCovariantThunk(const FunctionDecl *FD,
- int64_t nv_t, int64_t v_t,
- int64_t nv_r, int64_t v_r);
- void mangleGuardVariable(const VarDecl *D);
-
- void mangleCXXVtable(const CXXRecordDecl *RD);
- void mangleCXXVTT(const CXXRecordDecl *RD);
- void mangleCXXCtorVtable(const CXXRecordDecl *RD, int64_t Offset,
- const CXXRecordDecl *Type);
- void mangleCXXRtti(QualType Ty);
- void mangleCXXRttiName(QualType Ty);
-
- private:
+ void mangleFunctionEncoding(const FunctionDecl *FD);
+ void mangleName(const NamedDecl *ND);
+ void mangleType(QualType T);
+
+private:
bool mangleSubstitution(const NamedDecl *ND);
bool mangleSubstitution(QualType T);
bool mangleSubstitution(uintptr_t Ptr);
@@ -81,8 +74,6 @@ class VISIBILITY_HIDDEN CXXNameMangler {
bool mangleFunctionDecl(const FunctionDecl *FD);
- void mangleFunctionEncoding(const FunctionDecl *FD);
- void mangleName(const NamedDecl *ND);
void mangleName(const TemplateDecl *TD,
const TemplateArgument *TemplateArgs,
unsigned NumTemplateArgs);
@@ -99,7 +90,6 @@ class VISIBILITY_HIDDEN CXXNameMangler {
void mangleTemplatePrefix(const TemplateDecl *ND);
void mangleOperatorName(OverloadedOperatorKind OO, unsigned Arity);
void mangleQualifiers(Qualifiers Quals);
- void mangleType(QualType T);
// Declare manglers for every type class.
#define ABSTRACT_TYPE(CLASS, PARENT)
@@ -193,51 +183,6 @@ bool CXXNameMangler::mangle(const NamedDecl *D) {
return false;
}
-void CXXNameMangler::mangleCXXVtable(const CXXRecordDecl *RD) {
- // <special-name> ::= TV <type> # virtual table
- Out << "_ZTV";
- mangleName(RD);
-}
-
-void CXXNameMangler::mangleCXXVTT(const CXXRecordDecl *RD) {
- // <special-name> ::= TT <type> # VTT structure
- Out << "_ZTT";
- mangleName(RD);
-}
-
-void CXXNameMangler::mangleCXXCtorVtable(const CXXRecordDecl *RD,
- int64_t Offset,
- const CXXRecordDecl *Type) {
- // <special-name> ::= TC <type> <offset number> _ <base type>
- Out << "_ZTC";
- mangleName(RD);
- Out << Offset;
- Out << "_";
- mangleName(Type);
-}
-
-void CXXNameMangler::mangleCXXRtti(QualType Ty) {
- // <special-name> ::= TI <type> # typeinfo structure
- Out << "_ZTI";
-
- mangleType(Ty);
-}
-
-void CXXNameMangler::mangleCXXRttiName(QualType Ty) {
- // <special-name> ::= TS <type> # typeinfo name (null terminated byte string)
- Out << "_ZTS";
-
- mangleType(Ty);
-}
-
-void CXXNameMangler::mangleGuardVariable(const VarDecl *D) {
- // <special-name> ::= GV <object name> # Guard variable for one-time
- // # initialization
-
- Out << "_ZGV";
- mangleName(D);
-}
-
void CXXNameMangler::mangleFunctionEncoding(const FunctionDecl *FD) {
// <encoding> ::= <function name> <bare-function-type>
mangleName(FD);
@@ -403,28 +348,6 @@ void CXXNameMangler::mangleCalloffset(int64_t nv, int64_t v) {
Out << "_";
}
-void CXXNameMangler::mangleThunk(const FunctionDecl *FD, int64_t nv,
- int64_t v) {
- // <special-name> ::= T <call-offset> <base encoding>
- // # base is the nominal target function of thunk
- Out << "_ZT";
- mangleCalloffset(nv, v);
- mangleFunctionEncoding(FD);
-}
-
-void CXXNameMangler::mangleCovariantThunk(const FunctionDecl *FD,
- int64_t nv_t, int64_t v_t,
- int64_t nv_r, int64_t v_r) {
- // <special-name> ::= Tc <call-offset> <call-offset> <base encoding>
- // # base is the nominal target function of thunk
- // # first call-offset is 'this' adjustment
- // # second call-offset is result adjustment
- Out << "_ZTc";
- mangleCalloffset(nv_t, v_t);
- mangleCalloffset(nv_r, v_r);
- mangleFunctionEncoding(FD);
-}
-
void CXXNameMangler::mangleUnqualifiedName(const NamedDecl *ND) {
// <unqualified-name> ::= <operator-name>
// ::= <ctor-dtor-name>
@@ -1388,6 +1311,18 @@ bool MangleContext::mangleName(const NamedDecl *D,
return Mangler.mangle(D);
}
+void MangleContext::mangleCXXCtor(const CXXConstructorDecl *D, CXXCtorType Type,
+ llvm::SmallVectorImpl<char> &Res) {
+ CXXNameMangler Mangler(*this, Res, D, Type);
+ Mangler.mangle(D);
+}
+
+void MangleContext::mangleCXXDtor(const CXXDestructorDecl *D, CXXDtorType Type,
+ llvm::SmallVectorImpl<char> &Res) {
+ CXXNameMangler Mangler(*this, Res, D, Type);
+ Mangler.mangle(D);
+}
+
/// \brief Mangles the a thunk with the offset n for the declaration D and
/// emits that name to the given output stream.
void MangleContext::mangleThunk(const FunctionDecl *FD, int64_t nv, int64_t v,
@@ -1396,8 +1331,12 @@ void MangleContext::mangleThunk(const FunctionDecl *FD, int64_t nv, int64_t v,
assert(!isa<CXXDestructorDecl>(FD) &&
"Use mangleCXXDtor for destructor decls!");
+ // <special-name> ::= T <call-offset> <base encoding>
+ // # base is the nominal target function of thunk
CXXNameMangler Mangler(*this, Res);
- Mangler.mangleThunk(FD, nv, v);
+ Mangler.getStream() << "_ZT";
+ Mangler.mangleCalloffset(nv, v);
+ Mangler.mangleFunctionEncoding(FD);
}
/// \brief Mangles the a covariant thunk for the declaration D and emits that
@@ -1409,57 +1348,68 @@ void MangleContext::mangleCovariantThunk(const FunctionDecl *FD, int64_t nv_t,
assert(!isa<CXXDestructorDecl>(FD) &&
"Use mangleCXXDtor for destructor decls!");
+ // <special-name> ::= Tc <call-offset> <call-offset> <base encoding>
+ // # base is the nominal target function of thunk
+ // # first call-offset is 'this' adjustment
+ // # second call-offset is result adjustment
CXXNameMangler Mangler(*this, Res);
- Mangler.mangleCovariantThunk(FD, nv_t, v_t, nv_r, v_r);
+ Mangler.getStream() << "_ZTc";
+ Mangler.mangleCalloffset(nv_t, v_t);
+ Mangler.mangleCalloffset(nv_r, v_r);
+ Mangler.mangleFunctionEncoding(FD);
}
/// mangleGuardVariable - Returns the mangled name for a guard variable
/// for the passed in VarDecl.
void MangleContext::mangleGuardVariable(const VarDecl *D,
llvm::SmallVectorImpl<char> &Res) {
+ // <special-name> ::= GV <object name> # Guard variable for one-time
+ // # initialization
CXXNameMangler Mangler(*this, Res);
- Mangler.mangleGuardVariable(D);
-}
-
-void MangleContext::mangleCXXCtor(const CXXConstructorDecl *D, CXXCtorType Type,
- llvm::SmallVectorImpl<char> &Res) {
- CXXNameMangler Mangler(*this, Res, D, Type);
- Mangler.mangle(D);
-}
-
-void MangleContext::mangleCXXDtor(const CXXDestructorDecl *D, CXXDtorType Type,
- llvm::SmallVectorImpl<char> &Res) {
- CXXNameMangler Mangler(*this, Res, D, Type);
- Mangler.mangle(D);
+ Mangler.getStream() << "_ZGV";
+ Mangler.mangleName(D);
}
void MangleContext::mangleCXXVtable(const CXXRecordDecl *RD,
llvm::SmallVectorImpl<char> &Res) {
+ // <special-name> ::= TV <type> # virtual table
CXXNameMangler Mangler(*this, Res);
- Mangler.mangleCXXVtable(RD);
+ Mangler.getStream() << "_ZTV";
+ Mangler.mangleName(RD);
}
void MangleContext::mangleCXXVTT(const CXXRecordDecl *RD,
llvm::SmallVectorImpl<char> &Res) {
+ // <special-name> ::= TT <type> # VTT structure
CXXNameMangler Mangler(*this, Res);
- Mangler.mangleCXXVTT(RD);
+ Mangler.getStream() << "_ZTT";
+ Mangler.mangleName(RD);
}
void MangleContext::mangleCXXCtorVtable(const CXXRecordDecl *RD, int64_t Offset,
const CXXRecordDecl *Type,
llvm::SmallVectorImpl<char> &Res) {
+ // <special-name> ::= TC <type> <offset number> _ <base type>
CXXNameMangler Mangler(*this, Res);
- Mangler.mangleCXXCtorVtable(RD, Offset, Type);
+ Mangler.getStream() << "_ZTC";
+ Mangler.mangleName(RD);
+ Mangler.getStream() << Offset;
+ Mangler.getStream() << "_";
+ Mangler.mangleName(Type);
}
void MangleContext::mangleCXXRtti(QualType Ty,
llvm::SmallVectorImpl<char> &Res) {
+ // <special-name> ::= TI <type> # typeinfo structure
CXXNameMangler Mangler(*this, Res);
- Mangler.mangleCXXRtti(Ty);
+ Mangler.getStream() << "_ZTI";
+ Mangler.mangleType(Ty);
}
void MangleContext::mangleCXXRttiName(QualType Ty,
llvm::SmallVectorImpl<char> &Res) {
+ // <special-name> ::= TS <type> # typeinfo name (null terminated byte string)
CXXNameMangler Mangler(*this, Res);
- Mangler.mangleCXXRttiName(Ty);
+ Mangler.getStream() << "_ZTS";
+ Mangler.mangleType(Ty);
}
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2025-05-03 17:23:11 +0000