whether the expression contains an unexpanded parameter pack, in the
same vein as the changes to the Type hierarchy. Compute this bit
within all of the Expr subclasses.
This change required a bunch of reshuffling of dependency
calculations, mainly to consolidate them inside the constructors and
to fuse multiple loops that iterate over arguments to determine type
dependence, value dependence, and (now) containment of unexpanded
parameter packs.
Again, testing is painfully sparse, because all of the diagnostics
will change and it is more important to test the to-be-written visitor
that collects unexpanded parameter packs.
llvm-svn: 121831
cases. First, omit all builtin overloads when no non-record type is in the set
of candidate types. Second, avoid arithmetic type overloads for non-arithmetic
or enumeral types (counting vector types as arithmetic due to Clang
extensions). When heavily using constructs such as STL's '<<' based stream
logging, this can have a significant impact. One logging-heavy test case's
compile time dropped by 10% with this. Self-host shows 1-2% improvement in
compile time, but that's likely in the noise.
llvm-svn: 121665
type. Localize all of the logic within a single function rather than spreading
it throughout the class.
Also fixes a buglet where we failed to check for a RHS arithmetic type wider
than the LHS and return its canonical type. I've yet to produce a test case
that breaks because of this, but it was spotted by inspection by folks on the
IRC channel and is obviously correct now.
llvm-svn: 121633
user-defined operator overloads on the same enumeral types to the one place
where it is used.
In theory this removes wasted computation from several paths through this code,
but I'm not aware of a case where it actually matters. This is mostly for
cleanliness.
llvm-svn: 121630
others have another ordering they would prefer, I'm all ears, but this one made
it much easier for me to find the group of operators I'm interested in.
llvm-svn: 121629
candidate set. This breaks apart a huge switch + goto system into distinct
methods on a class. It also places the current mess of tables and other static
state used in the process within that class.
This is still a work in progress. I did a few simplifications that jumped out
at me as I went, but I plan to iterate on this a bit before it's truly clean.
However, this is easily the most invasive chunk. I benchmarked it on
all-std-headers.cpp and an internal testcase that has a major hotspot in
overload resolution and saw no real performance impact.
llvm-svn: 121623
space better. Remove this reference. To make that work, change some APIs
(most importantly, getDesugaredType()) to take an ASTContext& if they
need to return a QualType. Simultaneously, diminish the need to return a
QualType by introducing some useful APIs on SplitQualType, which is
just a std::pair<const Type *, Qualifiers>.
llvm-svn: 121478
cv-qualification conversions. More specifically, there's an implicit
cv-qualification conversion (even one that drops qualifiers) when
converting to 'id' or qualified 'id'. Fixes <rdar://problem/8734046>.
llvm-svn: 121047
conversions. Previously, we would end up collapsing qualification
conversions into the Objective-C pointer conversion step, including
(possibly) stripping qualifiers that shouldn't be removed.
This generalizes BuildSimilarlyQualifiedPointerType() to also work on
Objective-C object pointers, then eliminates the (redundant, not
totally correct) BuildSimilarlyQualifiedObjCObjectPointerType()
function.
Fixes <rdar://problem/8714395>.
llvm-svn: 120607
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
(while computing user conversion sequences), make sure that a result
of class type is a complete class type. Had we gone through
ActOnCallExpr, this would have happened when we built the CallExpr.
Fixes PR8425.
llvm-svn: 119005
promoted arithmetic types for which builtin operator candidates are
emitted. A few of these need further analysis.
Removes all the uses of UsualArithmeticConversionsType except the
core function in SemaExpr.cpp.
llvm-svn: 118988
constructor template will not be used to copy a class object to a
value of its own type. We were eliminating all constructor templates
whose specializations look like a copy constructor, which eliminated
important candidates. Fixes PR8182.
llvm-svn: 118418
the sets of available conversions for the first and second arguments
separate. This is apparently the indent of C++ [over.built], and
reduces the number of overload candidates generated, eliminating some
ambiguities. Fixes PR8477.
llvm-svn: 118178
that are suppressed during template argument deduction. This change
queues diagnostics computed during template argument deduction. Then,
if the resulting function template specialization or partial
specialization is chosen by overload resolution or partial ordering
(respectively), we will emit the queued diagnostics at that point.
This addresses most of PR6784. However, the check for unnamed/local
template arguments (which existed before this change) is still only
skin-deep, and needs to be extended to look deeper into types. It must
be improved to finish PR6784.
llvm-svn: 116373
against a function type, be sure to check the type of the resulting
function template specialization against the desired function type
after substituting the deduced/defaulted template arguments. Fixes PR8196.
llvm-svn: 115086
already be determined by isCopyAssignmentOperator(), and was set too
late in the process for all clients to see the appropriate
value. Cleanup only; no functionality change.
llvm-svn: 114916
sequences for two conversion functions when in fact we are in the text
of initialization by a user-defined conversion sequences. Fixes PR8034.
llvm-svn: 113724
be a semantic requirement that a built-in overloaded operator is not
added to the overload set of there is already a user-defined
overloaded operator with the same parameter types. Fixes PR8087.
llvm-svn: 113713
Douglas Gregor