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path: root/lib/Sema/SemaExpr.cpp
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2010-03-30Remove silly temporary comment.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99964 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-30Introduce a new kind of derived-to-base cast which bypasses the need forJohn McCall
null checks, and make sure we elide null checks when accessing base class members. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99963 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-30Remember the regparm attribute in FunctionType::ExtInfo.Rafael Espindola
Fixes PR3782. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99940 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-30Propagate the "found declaration" (i.e. the using declaration instead ofJohn McCall
the underlying/instantiated decl) through a lot of API, including "intermediate" MemberExprs required for (e.g.) template instantiation. This is necessary because of the access semantics of member accesses to using declarations: only the base class *containing the using decl* need be accessible from the naming class. This allows us to complete an access-controlled selfhost, if there are no recent regressions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99936 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-30the big refactoring bits of PR3782.Rafael Espindola
This introduces FunctionType::ExtInfo to hold the calling convention and the noreturn attribute. The next patch will extend it to include the regparm attribute and fix the bug. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99920 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-29Optimize PartialDiagnostic's memory-allocation behavior by placing aDouglas Gregor
cache of PartialDiagnostic::Storage objects into an allocator within the ASTContext. This eliminates a significant amount of malloc traffic, for a 10% performance improvement in -fsyntax-only wall-clock time with 403.gcc's combine.c. Also, eliminate the RequireNonAbstractType hack I put in earlier, which was but a symptom of this larger problem. Fixes <rdar://problem/7806091>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99849 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-24Allow conversion of qualified Class type to unqualifiedFariborz Jahanian
Class type to match gcc's. Fixes radar 7789113. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99425 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-23Only perform CFG-based warnings on 'static inline' functions thatTed Kremenek
are called (transitively) by regular functions/blocks within a translation untion. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99233 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-22-Wshadow should only warn about parameter declarations when we'reJohn McCall
entering a function or block definition, not on every single declaration. Unfortunately we don't have previous-lookup results around when it's time to make this decision, so we have to redo the lookup. The alternative is to use delayed diagnostics. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99172 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-20Refactor CFG-based warnings in Sema to be run by a worked object called ↵Ted Kremenek
AnalysisBasedWarnings. This object controls when the warnings are executed, allowing the client code in Sema to selectively disable warnings as needed. Centralizing the logic for analysis-based warnings allows us to optimize when and how they are run. Along the way, remove the redundant logic for the 'check fall-through' warning for blocks; now the same logic is used for both blocks and functions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99085 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-19Diagnose conversion of 'Class' to/from objective-c Fariborz Jahanian
object pointer types. Fixes radar 7634850. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@98970 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-18Some cleanup, change diagnostic when assigning toFariborz Jahanian
a property which is not lvalue. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@98848 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-17objective-c patch to provide type safty when blocks are passing orFariborz Jahanian
returning objc objects. There will be a corresponding objective-c++ patch soon. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@98696 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-16Issue error when a byref array is accessed in a blockFariborz Jahanian
literal. Fixes radar 7760213. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@98693 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-16Audit all Preprocessor::getSpelling() callers, improving failureDouglas Gregor
recovery for those that need it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@98689 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-15Add support for -Wwrite-strings. Patch by Mike M! Fixes PR 4804.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@98541 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-13Use SmallString instead of SmallVectorKovarththanan Rajaratnam
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@98436 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11Warn about comparing an unsigned expression with 0 in tautological ways.John McCall
Patch by mikem! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@98279 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-10Statement expressions can be used in global- or namespace-scoped blocksDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@98135 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-06Allow use of byref (__block attributed) arrays insideFariborz Jahanian
the block. Fixes radar 7671883. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@97863 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03Reinstate r97674 with a fix for the assertion that was firing in <list>Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@97686 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03Revert r97674; it's causing failuresDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@97677 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03Implement disambiguation of base class members via aDouglas Gregor
nested-name-specifier. For example, this allows member access in diamond-shaped hierarchies like: struct Base { void Foo(); int Member; }; struct D1 : public Base {}; struct D2 : public Base {}; struct Derived : public D1, public D2 { } void Test(Derived d) { d.Member = 17; // error: ambiguous cast from Derived to Base d.D1::Member = 17; // error: okay, modify D1's Base's Member } Fixes PR5820 and <rdar://problem/7535045>. Also, eliminate some redundancy between Sema::PerformObjectMemberConversion() and Sema::PerformObjectArgumentInitialization() -- the latter now calls the former. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@97674 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01Keep an explicit stack of function and block scopes, each element ofDouglas Gregor
which has the label map, switch statement stack, etc. Previously, we had a single set of maps in Sema (for the function) along with a stack of block scopes. However, this lead to funky behavior with nested functions, e.g., in the member functions of local classes. The explicit-stack approach is far cleaner, and we retain a 1-element cache so that we're not malloc/free'ing every time we enter a function. Fixes PR6382. Also, tweaked the unused-variable warning suppression logic to look at errors within a given Scope rather than within a given function. The prior code wasn't looking at the right number-of-errors count when dealing with blocks, since the block's count would be deallocated before we got to ActOnPopScope. This approach works with nested blocks/functions, and gives tighter error recovery. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@97518 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01Implement jump checking for initialized c++ variables, implementingChris Lattner
a fixme and PR6451. Only perform jump checking if the containing function has no errors, and add the infrastructure needed to do this. On the testcase in the PR, we produce: t.cc:6:3: error: illegal goto into protected scope goto later; ^ t.cc:7:5: note: jump bypasses variable initialization X x; ^ git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@97497 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01Start detangling the BlockSemaInfo/Sema mess. No functionality change.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@97494 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-27Add an overload of Preprocessor::getSpelling which takes a SmallVector andBenjamin Kramer
returns a StringRef. Use it to simplify some repetitive code. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@97322 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-26At sabre's request, drop the FP bounds diagnostics down to warnings and fileJohn McCall
them under -Wbad-literal. They're still on by default. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@97284 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-25When computing the composite pointer type for relational comparisons,Douglas Gregor
equality comparisons, and conditional operators, produce a composite pointer type with the appropriate additional "const" qualifiers if the pointer types would otherwise be incompatible. This is a small extension (also present in GCC and EDG in a slightly different form) that permits code like: void** i; void const** j; i == j; with the following extwarn: t.cpp:5:5: warning: comparison of distinct pointer types ('void **' and 'void const **') uses non-standard composite pointer type 'void const *const *' [-pedantic] i == j; ~ ^ ~ Fixes PR6346, and I'll be filing a core issue about this with the C++ committee. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@97177 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-25Remove some oogly code made dead by the pseudo-destructorDouglas Gregor
instantiation changes. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@97095 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-24Keep track of the location of the '~' in a pseudo-destructor expression.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@97080 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-24Retain complete source information for the type after the '~' in aDouglas Gregor
CXXPseudoDestructorExpr. Update template instantiation for pseudo-destructor expressions to use this source information and to make use of Sema::BuildPseudoDestructorExpr when the base expression is dependent or refers to a scalar type. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@97079 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-24Retain source information for the "type-name ::" in aDouglas Gregor
pseudo-destructor expression such as p->T::~T() git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@97060 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-24ActOnPseudoDestructorExpr now performs all semantic analysis forDouglas Gregor
pseudo-destructor expressions, and builds the CXXPseudoDestructorExpr node directly. Currently, this only affects pseudo-destructor expressions when they are parsed, but not after template instantiation. That's coming next... Improve parsing of pseudo-destructor-names. When parsing the nested-name-specifier and we hit the sequence of tokens X :: ~, query the actual module to determine whether X is a type-name (in which case the X :: is part of the pseudo-destructor-name but not the nested-name-specifier) or not (in which case the X :: is part of the nested-name-specifier). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@97058 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-21Eliminate the default arguments to ASTContext::getFunctionType(),Douglas Gregor
fixing up a few callers that thought they were propagating NoReturn information but were in fact saying something about exception specifications. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@96766 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-19Issue extended diagnostic when property dot-syntax is used and Fariborz Jahanian
there is a setter but no getter (part of radar 7664555). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@96687 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-19Revert: "Change InitListExpr to allocate the array for holding references"Ted Kremenek
This was causing buildbot breakage. This reverts commit d46e952cc8cb8d9eed8657d9a0b267910a0f745a. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@96652 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-19Change InitListExpr to allocate the array for holding referencesTed Kremenek
to initializer expressions in an array allocated using ASTContext. This plugs a memory leak when ASTContext uses a BumpPtrAllocator to allocate memory for AST nodes. In my mind this isn't an ideal solution; it would be nice to have a general "vector"-like class that allocates memory using ASTContext, but whose guts could be separated from the methods of InitListExpr itself. I haven't gone and taken this approach yet because it isn't clear yet if we'll eventually want an alternate solution for recylcing memory using by InitListExprs as we are constructing the ASTs. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@96642 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-16Introduce a new kind of failed result for isLvalue/isModifiableLvalueDouglas Gregor
which describes temporary objects of class type in C++. Use this to provide a more-specific, remappable diagnostic when takin the address of such a temporary. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@96396 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-12Complain if block-literal expression's parameter name isFariborz Jahanian
missing (in c/objc mode). Fixes radar 7528255. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@96017 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-12Implementing unused function warning.Tanya Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@95940 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-11Allocate the SubExprs array in ObjCMessageExpr using the allocator ↵Ted Kremenek
associated with ASTContext. This fixes yet another leak (<rdar://problem/7639260>). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@95930 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-11More vtable layout dumper improvements. Handle destructors, dump the ↵Anders Carlsson
complete function type of the member functions (using PredefinedExpr::ComputeName. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@95887 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-11Eliminate a bunch of unnecessary ASTContexts from members functions ofDouglas Gregor
Decl subclasses. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@95841 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-11Diagnose when user provided getter is being used as lvalueFariborz Jahanian
using property dot-syntax. Fixes radar 7628953. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@95838 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-11Eliminate the ASTContext parameter from RecordDecl::getDefinition()Douglas Gregor
and CXXRecordDecl::getDefinition(); it's totally unnecessary. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@95836 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-09Finish implementing property synthesis by default.Fariborz Jahanian
(radar 7381956). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@95695 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-09Implement synthesizing properties by default.Fariborz Jahanian
This is a non-fragile-abi feature only. Since it breaks existing code, it is currently placed under -fobjc-nonfragile-abi2 option for test purposes only until further notice. WIP. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@95685 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-08Fix the crash-on-invalid from PR6259.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@95554 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-05Default function arguments for function template specializationsDouglas Gregor
always come from the primary template, so gather the instantiation template arguments from the primary template. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@95380 91177308-0d34-0410-b5e6-96231b3b80d8
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