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Calculate the value kind of an expression when it's created and

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store it on the expression node.  Also store an "object kind",
which distinguishes ordinary "addressed" l-values (like
variable references and pointer dereferences) and bitfield,
@property, and vector-component l-values.

Currently we're not using these for much, but I aim to switch
pretty much everything calculating l-valueness over to them.
For now they shouldn't necessarily be trusted.

llvm-svn: 119685
This commit is contained in:
John McCall
2010-11-18 06:31:45 +00:00
parent e5a1e8ae12
commit 7decc9e4ea
28 changed files with 903 additions and 551 deletions
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28
clang/lib/CodeGen/CGBlocks.cpp
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@@ -161,7 +161,7 @@ static void AllocateAllBlockDeclRefs(CodeGenFunction &CGF, CGBlockInfo &Info) {
if (Info.NeedsObjCSelf) {
ValueDecl *Self = cast<ObjCMethodDecl>(CGF.CurFuncDecl)->getSelfDecl();
BlockDeclRefExpr *BDRE =
new (CGF.getContext()) BlockDeclRefExpr(Self, Self->getType(),
new (CGF.getContext()) BlockDeclRefExpr(Self, Self->getType(), VK_RValue,
SourceLocation(), false);
Info.DeclRefs.push_back(BDRE);
CGF.AllocateBlockDecl(BDRE);
@@ -344,26 +344,26 @@ llvm::Value *CodeGenFunction::BuildBlockLiteralTmp(const BlockExpr *BE) {
if (BDRE->getCopyConstructorExpr()) {
E = BDRE->getCopyConstructorExpr();
PushDestructorCleanup(E->getType(), Addr);
}
else {
E = new (getContext()) DeclRefExpr(const_cast<ValueDecl*>(VD),
VD->getType().getNonReferenceType(),
SourceLocation());
if (VD->getType()->isReferenceType()) {
E = new (getContext())
UnaryOperator(const_cast<Expr*>(E), UO_AddrOf,
getContext().getPointerType(E->getType()),
SourceLocation());
}
} else {
E = new (getContext()) DeclRefExpr(const_cast<ValueDecl*>(VD),
VD->getType().getNonReferenceType(),
Expr::getValueKindForType(VD->getType()),
SourceLocation());
if (VD->getType()->isReferenceType()) {
E = new (getContext())
UnaryOperator(const_cast<Expr*>(E), UO_AddrOf,
getContext().getPointerType(E->getType()),
VK_RValue, OK_Ordinary, SourceLocation());
}
}
}
}
if (BDRE->isByRef()) {
E = new (getContext())
UnaryOperator(const_cast<Expr*>(E), UO_AddrOf,
getContext().getPointerType(E->getType()),
SourceLocation());
VK_RValue, OK_Ordinary, SourceLocation());
}
RValue r = EmitAnyExpr(E, AggValueSlot::forAddr(Addr, false, true));
@@ -932,7 +932,7 @@ CharUnits BlockFunction::getBlockOffset(CharUnits Size, CharUnits Align) {
0, QualType(PadTy), 0,
SC_None, SC_None);
Expr *E = new (getContext()) DeclRefExpr(PadDecl, PadDecl->getType(),
SourceLocation());
VK_LValue, SourceLocation());
BlockLayout.push_back(E);
}