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path: root/lib/AST/Expr.cpp
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2010-11-28Look through parentheses when deciding whether an expr is a temporary ↵Anders Carlsson
object. Fixes PR8683. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120247 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
2010-11-18Calculate 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
2010-11-17a metric ton of refactoring later, Sema::getLocationOfStringLiteralByte Chris Lattner
no longer depends on Preprocessor, so we can move it out of Sema into a nice new StringLiteral::getLocationOfByte method that can be used by any AST client. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@119481 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-16Kill CK_Unknown and flesh out the documentation for the existing CastKinds.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@119331 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-15Add a new expression kind, OpaqueValueExpr, which is useful forJohn McCall
certain internal type-checking procedures as well as for representing certain implicitly-generated operations. Uses to follow. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@119289 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
2010-11-14Add a few more complex-related cast kinds that arise due to arbitraryJohn McCall
implicit conversions; the last batch was specific to promotions. I think this is the full set we need. I do think dividing the cast kinds into floating and integral is probably a good idea. Annotate a *lot* more C casts with useful cast kinds. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@119036 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-13Introduce five new cast kinds for various conversions into andJohn McCall
between complex types. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@118994 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-13Introduce a null-to-pointer implicit cast kind.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@118966 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-09Fix InitListExpr::getSourceRange() to work in the case of no locations for ↵Ted Kremenek
'(' and ')'. This can happen in the case of transparent unions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@118472 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-01Emit error when using a bound member function for something other than ↵Argyrios Kyrtzidis
calling it. Also avoids IRGen crashes due to accepting invalid code. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117943 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-30Emit an error when trying to form a pointer-to-member to a bitfield.Argyrios Kyrtzidis
As a bonus, avoids a crash on the IRGen side due to accepting invalid code. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117842 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-30Rename alignof -> alignOf to avoid irritating C++'0x compilers,Chris Lattner
PR8423 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117775 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-26Optimize field space usage in CompoundStmt, LabelStmt, Expr, and CastExpr.John McCall
There's probably still significant padding waste on x86-64 UNIXen, but the difference in 32-bit compiles should be significant. There are a lot of Expr nodes left that could lose a word this way. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117359 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-15Treat __extension__ like ParenExpr.Abramo Bagnara
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116569 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-14Eliminate usage of ObjCSuperExpr used forFariborz Jahanian
'super' as receiver of property or a setter/getter methods. //rdar: //8525788 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116483 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-27Patch to support transparent_union argumentsFariborz Jahanian
passed to nonnull attributed functions. Implements radar 6857843. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@114917 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-27Copying result of object property reference expressionFariborz Jahanian
into a temporary is elidable as well. (Finishes up radar 8291337). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@114845 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-27Fixed isConstantInitializer for __builtin_choose_expr.Abramo Bagnara
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@114820 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-19Warn when an expression result in a LabelStmt is unused.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@114314 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-16Right, there are *two* cases of pr-value class-type expressions that don'tJohn McCall
derive from temporaries of the same type. Black-list member expressions as well. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@114071 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-15Tweak comment as suggested by Sebastian.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@114019 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-15one piece of code is responsible for the lifetime of every aggregateJohn McCall
slot. The easiest way to do that was to bundle up the information we care about for aggregate slots into a new structure which demands that its creators at least consider the question. I could probably be convinced that the ObjC 'needs GC' bit should be rolled into this structure. Implement generalized copy elision. The main obstacle here is that IR-generation must be much more careful about making sure that exactly git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113962 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-10Test destructors in delete expressions and of temporaries for throwing.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113664 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-10Address Doug's comments.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113650 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-10First version of a testcase, plus fixes.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113624 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-10Implement Expr::CanThrow, a function that applies the noexcept operator ↵Sebastian Redl
rules to expressions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113621 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-10Make CallExpr::getCalleeDecl look through pointer derefs.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113620 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-28Fix the memory leak of FloatingLiteral/IntegerLiteral.Argyrios Kyrtzidis
For large floats/integers, APFloat/APInt will allocate memory from the heap to represent these numbers. Unfortunately, when we use a BumpPtrAllocator to allocate IntegerLiteral/FloatingLiteral nodes the memory associated with the APFloat/APInt values will never get freed. I introduce the class 'APNumericStorage' which uses ASTContext's allocator for memory allocation and is used internally by FloatingLiteral/IntegerLiteral. Fixes rdar://7637185 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112361 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-25GCC didn't care for my attempt at API compatibility, so brute-force everythingJohn McCall
to the new constants. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112047 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-25More incremental progress towards not including Expr.h in Sema.h.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112044 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-19Regularize the API for accessing explicit template arguments.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111584 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-13Zap unused UnaryOperator::OffsetOf.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110996 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-11Added locations and type source info for DeclarationName.Abramo Bagnara
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110860 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-07Allow reference binding of a reference of Objective-C object type toDouglas Gregor
an lvalue of another, compatible Objective-C object type (e.g., a subclass). Introduce a new initialization sequence step kind to describe this binding, along with a new cast kind. Fixes PR7741. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110513 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-07Store inheritance paths after CastExprs instead of inside them.John McCall
This takes some trickery since CastExpr has subclasses (and indeed, is abstract). Also, smoosh the CastKind into the bitfield from Expr. Drops two words of storage from Expr in the common case of expressions which don't need inheritance paths. Avoids a separate allocation and another word of overhead in cases needing inheritance paths. Also has the advantage of not leaking memory, since destructors for AST nodes are never run. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110507 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-02Further adjustments to -Wglobal-constructors; works for references and directJohn McCall
initializations now. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110063 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-01Kill off RequiresGlobalConstructor in favor of isConstantInitializer.John McCall
Note some obvious false positives in the test case. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109986 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-25Remove the vast majority of the Destroy methods from the AST library,Douglas Gregor
since we aren't going to be calling them ever. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109377 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-20Update ImplicitCastExpr to be able to represent an XValue.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108807 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-13Introduce a new cast kind for an "lvalue bitcast", which handlesDouglas Gregor
reinterpret_casts (possibly indirectly via C-style/functional casts) on values, e.g., int i; reinterpret_cast<short&>(i); The IR generated for this is essentially the same as for *reinterpret_cast<short*>(&i). Fixes PR6437, PR7593, and PR7344. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108294 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-13When forming a function call or message send expression, be sure toDouglas Gregor
strip cv-qualifiers from the expression's type when the language calls for it: in C, that's all the time, while C++ only does it for non-class types. Centralized the computation of the call expression type in QualType::getCallResultType() and some helper functions in other nodes (FunctionDecl, ObjCMethodDecl, FunctionType), and updated all relevant callers of getResultType() to getCallResultType(). Fixes PR7598 and PR7463, along with a bunch of getResultType() call sites that weren't stripping references off the result type (nothing stripped cv-qualifiers properly before this change). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108234 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-08Read/write the C++ parts of DeclRefExpr and MemberExpr for PCH.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107872 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-30Fix rdar://8139785 "implement warning on dead expression in comma operator"Argyrios Kyrtzidis
As a bonus, fix the warning for || and && operators; it was emitted even if one of the operands had side effects, e.g: x || test_logical_foo1(); emitted a bogus "expression result unused" for 'x'. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107274 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-28Introduce Expr::Classify and Expr::ClassifyModifiable, which determine the ↵Sebastian Redl
classification of an expression under the C++0x taxology (value category). Reimplement isLvalue and isModifiableLvalue using these functions. No regressions in the test suite from this, and my rough performance check doesn't show any regressions either. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107007 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-24Support a couple more C++ Exprs for PCH.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106727 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-17Do not treat @selector as lvalue (unlike g++).Fariborz Jahanian
Patch by Nico Weber (pr7390). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106242 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-17Objective-c++ IRGen. Support for @selector expression asFariborz Jahanian
an lvalue. Fixes PR7390. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106235 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-16Give Type::isIntegralType() an ASTContext parameter, so that itDouglas Gregor
provides C "integer type" semantics in C and C++ "integral type" semantics in C++. Note that I still need to update isIntegerType (and possibly other predicates) using the same approach I've taken for isIntegralType(). The two should have the same meaning, but currently don't (!). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106074 91177308-0d34-0410-b5e6-96231b3b80d8
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