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path: root/lib/Sema/SemaOverload.cpp
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2011-01-11Implement C++ [temp.func.order]p5 more directly, by passing down theDouglas Gregor
number of explicit call arguments. This actually fixes an erroneous test for [temp.deduct.partial]p11, where we were considering parameters corresponding to arguments beyond those that were explicitly provided. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@123244 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-06Implement template argument deduction from a call to a functionDouglas Gregor
template whose last parameter is a parameter pack. This allows us to form a call to, e.g., template<typename ...Args1, typename ...Args2> void f(std::pair<Args1, Args2> ...pairs); given zero or more instances of "pair". git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@122973 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-05Many of the built-in operator candidates introduced into overloadDouglas Gregor
resolution require that the pointed-to type be an object type, but we weren't filtering out non-object types. Do so, fixing PR7851. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@122853 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-21For member pointer conversions potentially involving derived-to-baseDouglas Gregor
conversions, make sure that the (possibly) derived type is complete before looking for base classes. Finishes the fix for PR8801. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@122363 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-21Fix the noreturn conversion to only strip off a single level of indirection.John McCall
Apply the noreturn attribute while creating a builtin function's type. Remove the getNoReturnType() API. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@122295 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-15Variadic templates: extend the Expr class with a bit that specifiesDouglas Gregor
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121831 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-13Reduce the number of builtin operator overload candidates added in certainChandler Carruth
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121665 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-12Finish cleaning up the static utility code for adding builtin operator overloadChandler Carruth
candidates. They're now wrapped in nice APIs which hide the tables, etc. Also removes some repetitive code from clients. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121634 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-12Clean up the helpers used to compute the usual arithmetic conversions' resultChandler Carruth
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121633 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-12Add a comment to a helper function.Chandler Carruth
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121632 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-12Sink the logic to suppress builtin operator overloads in the presence ofChandler Carruth
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121630 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-12Reorder the cases in the switch to be more logically grouped (to my mind). IfChandler Carruth
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121629 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-12Remove the final goto from this switch making it explict which overload set isChandler Carruth
added for binary operator&. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121628 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-12Fold away completely identical code with simple fallthrough.Chandler Carruth
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121627 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-12Move and copy function calls around to remove the indirection through gotosChandler Carruth
from the switch statement. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121626 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-12Simplify the flow through the switch by explicitly listing the added overloadsChandler Carruth
for a few cases. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121625 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-12Fix 80-column violations and reflowing some code to facilitate those fixes.Chandler Carruth
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121624 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-12Begin the refactoring of how builtin operators are added to the overloadChandler Carruth
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121623 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-10It's kindof silly that ExtQuals has an ASTContext&, and we can use thatJohn McCall
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>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121478 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06Objective-C pointer conversions to 'id' or qualified 'id' subsumeDouglas Gregor
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>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121047 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-04Remove some defensive calls to EmitLoadOfPropertyRefLValue that shouldn'tJohn McCall
be required, and then fix up some missing loads on overloaded-operator paths which that exposed. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120896 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-01Improve our handling of cv-qualifiers in Objective-C pointerDouglas Gregor
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>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120607 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-24Switch a lot of call-sites over to using the new value-kind calculations.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120084 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-20A bundle of whitespace changes, separated out from the functional changes.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@119886 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-18Calculate the value kind of an expression when it's created andJohn McCall
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@119685 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-16Improve diagnostic for calling non-const method on const object. Fixes ↵Argyrios Kyrtzidis
rdar://7743000 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@119336 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-15Assorted work leading towards the elimination of CK_Unknown.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@119138 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-13When complaining about ambiguous overload resolution for a unary orDouglas Gregor
binary operator, provide the types. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@119008 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-13When we're type-checking the result of calling a conversion functionDouglas Gregor
(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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@119005 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-13Pre-compute all possible usual-arithmetic-conversions results for theJohn McCall
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@118988 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-13Store the list of arithmetic types as a static array of member pointersJohn McCall
instead of copying them all out at the start. Not a significant optimization. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@118967 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10Friend function declarations can overload with tag declarations.John McCall
Fixes PR7915. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@118670 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-08Improve our handling of C++ [class.copy]p3, which specifies that aDouglas Gregor
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@118418 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-08Properly diagnose invalid casts to function references. Patch byDouglas Gregor
Faisal Vali, tweaked by me. Fixes PR8230. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@118400 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-05Implement [over.ics.rank]p4: A conversion that does not convert an ↵Anders Carlsson
std::nullptr_t to bool is better than one than does. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@118269 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-04std::nullptr_t is a fundamental type for RTTI purposes.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@118238 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-03When producing overload candidates for binary built-in operators, keepDouglas Gregor
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@118178 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-26No really, we don't have a retain/release system for statements/expressionsJohn McCall
anymore. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117357 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-26Actually, that doesn't really work, and anyway we should chooseJohn McCall
conversion to id over conversion to void*. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117355 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-26Consider conversions of Objective-C pointers to 'id' to be basically ofJohn McCall
the same rank as conversions of normal pointers to 'void*'. Also, resurrect a test case. Fixes rdar://problem/8592139 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117354 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-21Implement the integral promotion rules for the C++0x char16_t andDouglas Gregor
char32_t character types and enable built-in overloaded operator candidates for these types. Fixes PR8432. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117038 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-15Add builtin conditional operator candidates for scoped enumerationDouglas Gregor
types, from Alp Toker! Fixes PR8344. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116549 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-13Teach the warning about unnamed/local types in template arguments toDouglas Gregor
actually walk the template argument type to find any unnamed/local types within it. Fixes PR6784. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116382 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-12Introduce support for emitting diagnostics (warnings + their notes)Douglas Gregor
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116373 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-08Implement C++0x scoped enumerations, from Daniel Wallin! (and tweaked aDouglas Gregor
bit by me). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116122 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-29When performing template argument deduction of a function templateDouglas Gregor
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@115086 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-28Don't warn with -Wbool-conversions if the user wrote an explicit cast like ↵Argyrios Kyrtzidis
"(void *)false". Fixes rdar://8459342. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@114955 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-27Kill FunctionDecl's IsCopyAssignment bit; it duplicated what couldDouglas Gregor
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@114916 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-24Patch implements passing arrays to functions expectingFariborz Jahanian
vla. Implements pr7827. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@114737 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-12Don't assert when attempting to take the address of an overloadedDouglas Gregor
function fails due to ambiguities in partial ordering of function templates. Fixes PR8033. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113725 91177308-0d34-0410-b5e6-96231b3b80d8
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