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Implement IRGen for MemberExpr referring to static member function.

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llvm-svn: 89938
This commit is contained in:
Eli Friedman 2009-11-26 06:08:14 +00:00
parent 0ec57ff203
commit d15eb34d4b
2 changed files with 32 additions and 17 deletions
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41
clang/lib/CodeGen/CGExpr.cpp
View File

@ -828,6 +828,24 @@ static LValue EmitGlobalVarDeclLValue(CodeGenFunction &CGF,
return LV;
}
static LValue EmitFunctionDeclLValue(CodeGenFunction &CGF,
const Expr *E, const FunctionDecl *FD) {
llvm::Value* V = CGF.CGM.GetAddrOfFunction(FD);
if (!FD->hasPrototype()) {
if (const FunctionProtoType *Proto =
FD->getType()->getAs<FunctionProtoType>()) {
// Ugly case: for a K&R-style definition, the type of the definition
// isn't the same as the type of a use. Correct for this with a
// bitcast.
QualType NoProtoType =
CGF.getContext().getFunctionNoProtoType(Proto->getResultType());
NoProtoType = CGF.getContext().getPointerType(NoProtoType);
V = CGF.Builder.CreateBitCast(V, CGF.ConvertType(NoProtoType), "tmp");
}
}
return LValue::MakeAddr(V, CGF.MakeQualifiers(E->getType()));
}
LValue CodeGenFunction::EmitDeclRefLValue(const DeclRefExpr *E) {
const NamedDecl *ND = E->getDecl();
@ -861,22 +879,8 @@ LValue CodeGenFunction::EmitDeclRefLValue(const DeclRefExpr *E) {
return LV;
}
if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(ND)) {
llvm::Value* V = CGM.GetAddrOfFunction(FD);
if (!FD->hasPrototype()) {
if (const FunctionProtoType *Proto =
FD->getType()->getAs<FunctionProtoType>()) {
// Ugly case: for a K&R-style definition, the type of the definition
// isn't the same as the type of a use. Correct for this with a
// bitcast.
QualType NoProtoType =
getContext().getFunctionNoProtoType(Proto->getResultType());
NoProtoType = getContext().getPointerType(NoProtoType);
V = Builder.CreateBitCast(V, ConvertType(NoProtoType), "tmp");
}
}
return LValue::MakeAddr(V, MakeQualifiers(E->getType()));
}
if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(ND))
return EmitFunctionDeclLValue(*this, E, FD);
if (E->getQualifier()) {
// FIXME: the qualifier check does not seem sufficient here
@ -1163,7 +1167,10 @@ LValue CodeGenFunction::EmitMemberExpr(const MemberExpr *E) {
if (VarDecl *VD = dyn_cast<VarDecl>(ND))
return EmitGlobalVarDeclLValue(*this, E, VD);
if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(ND))
return EmitFunctionDeclLValue(*this, E, FD);
assert(false && "Unhandled member declaration!");
return LValue();
}

8
clang/test/CodeGenCXX/member-expressions.cpp
View File

@ -36,3 +36,11 @@ void f(A *a) {
A::E e3 = A().Foo;
}
namespace test3 {
struct A {
static int foo();
};
int f() {
return A().foo();
}
}