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path: root/lib/CodeGen/CGObjC.cpp
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2011-09-09Give conversions of block pointers to ObjC pointers a different cast kindJohn McCall
than conversions of C pointers to ObjC pointers. In order to ensure that we've caught every case, add asserts to CastExpr that strictly determine which cast kind is used for which kind of bit cast. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139352 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-02Extend the ASTContext constructor to delay the initialization ofDouglas Gregor
builtin types (When requested). This is another step toward making ASTUnit build the ASTContext as needed when loading an AST file, rather than doing so after the fact. No actual functionality change (yet). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138985 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-30Be sure to emit lvalue-to-rvalue casts for loads from x-values.John McCall
Doing this happens to disrupt the pattern that ARC was looking for for move optimizations, so we need to fix that simultaneously. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138789 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-25Track whether an AggValueSlot is potentially aliased, and do notJohn McCall
emit call results into potentially aliased slots. This allows us to properly mark indirect return slots as noalias, at the cost of requiring an extra memcpy when assigning an aggregate call result into a l-value. It also brings us into compliance with the x86-64 ABI. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138599 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-25Use stronger typing for the flags on AggValueSlot and requireJohn McCall
creators to tell us whether something needs GC barriers. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138581 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-09Move the creation of the record type for the state of Objective-C fastDouglas Gregor
enumerations from the ASTContext into CodeGen, so that we don't need to serialize it to AST files. This appears to be the last of the low-hanging fruit for SpecialTypes. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137124 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-05The continue label in an ARC for-in loop should not involveJohn McCall
releasing the collection. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136949 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-03Use the general conditional-cleanup framework instead of rolling ourJohn McCall
own, incorrectly, for releasing objects at the end of a full-expression. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136823 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-29Remove some unnecessary single element array temporaries.Jay Foad
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136461 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28Fix a couple of problems with initialization and assignment toJohn McCall
__block variables where the act of initialization/assignment itself causes the __block variable to be copied to the heap because the variable is of block type and is being assigned a block literal which captures the variable. rdar://problem/9814099 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136337 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-27Clean up the analysis of the collection operand to ObjCJohn McCall
for-in statements; specifically, make sure to close over any temporaries or cleanups it might require. In ARC, this has implications for the lifetime of the collection, so emit it with a retain and release it upon exit from the loop. rdar://problem/9817306 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136204 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-23remove unneeded llvm:: namespace qualifiers on some core types now that ↵Chris Lattner
LLVM.h imports them into the clang namespace. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135852 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-22Document the existing objc_precise_lifetime attribute.John McCall
Introduce and document a new objc_returns_inner_pointer attribute, and consume it by performing a retain+autorelease on message receivers when they're not immediately loaded from an object with precise lifetime. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135764 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-22In ARC, non-atomic getters do not need to retain and autoreleaseJohn McCall
their loaded values, although it still worth doing this for __weak properties to get the autoreleased-return-value optimization. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135747 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-22Add a const overload for ObjCInterfaceDecl::all_declared_ivar_begin.Jordy Rose
This was previously not-const only because it has to lazily construct a chain of ivars the first time it is called (and after the chain is invalidated). In practice, all the clients were just const_casting their const Decls; all those now-unnecessary const_casts have been removed. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135741 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-18de-constify llvm::Type, patch by David Blaikie!Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135370 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-13Don't crash if defining -dealloc in a category.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135054 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-12Generalize Cleanup::Emit's "isForEH" parameter into a setJohn McCall
of flags. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134997 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-12Switch field destruction over to use the new destroyer-based APIJohn McCall
and kill a lot of redundant code. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134988 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-12Do full-expression cleanups in a much more sensible way that still letsJohn McCall
people write useful cleanup classes. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134942 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-09clang side to match the LLVM IR type system rewrite patch.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134831 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-09A number of array-related IR-gen cleanups.John McCall
- Emit default-initialization of arrays that were partially initialized with initializer lists with a loop, rather than emitting the default initializer N times; - support destroying VLAs of non-trivial type, although this is not yet exposed to users; and - support the partial destruction of arrays initialized with initializer lists when an initializer throws an exception. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134784 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-07In ARC, reclaim all return values of retainable type, not just thoseJohn McCall
where we have an immediate need of a retained value. As an exception, don't do this when the call is made as the immediate operand of a __bridge retain. This is more in the way of a workaround than an actual guarantee, so it's acceptable to be brittle here. rdar://problem/9504800 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134605 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-06Change the driver's logic about Objective-C runtimes: abstract out aJohn McCall
structure to hold inferred information, then propagate each invididual bit down to -cc1. Separate the bits of "supports weak" and "has a native ARC runtime"; make the latter a CodeGenOption. The tool chain is still driving this decision, because it's the place that has the required deployment target information on Darwin, but at least it's better-factored now. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134453 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-02Update for llvm commit r134291.Eric Christopher
Fixes rdar://9714064 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134292 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-25Do not apply the ARC move optimization to 'const'-qualified xvalues.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133861 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-25LValue carries a type now, so simplify the main EmitLoad/Store APIsJohn McCall
by removing the redundant type parameter. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133860 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-24Honor objc_precise_lifetime in GC mode by feeding the valueJohn McCall
in the variable to an inline asm which gets run when the variable goes out of scope. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133840 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-24Change the IR-generation of VLAs so that we capture bounds,John McCall
not sizes; so that we use well-typed allocas; and so that we properly recurse through the full set of variably-modified types. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133827 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-22Try to silence GCC warningDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133623 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-22Implement the C++0x move optimization for Automatic Reference CountingDouglas Gregor
objects, so that we steal the retain count of a temporary __strong pointer (zeroing out that temporary), eliding a retain/release pair. Addresses <rdar://problem/9364932>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133621 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-22When binding a reference to an Automatic Reference Counting temporary,Douglas Gregor
retain/release the temporary object appropriately. Previously, we would only perform the retain/release operations when the reference would extend the lifetime of the temporary, but this does the wrong thing across calls. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133620 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-18Remove dead variables.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133346 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-17Objective-C fast enumeration loop variables are not retained in ARC, butJohn McCall
they should still be officially __strong for the purposes of errors, block capture, etc. Make a new bit on variables, isARCPseudoStrong(), and set this for 'self' and these enumeration-loop variables. Change the code that was looking for the old patterns to look for this bit, and change IR generation to find this bit and treat the resulting variable as __unsafe_unretained for the purposes of init/destroy in the two places it can come up. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133243 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-15Automatic Reference Counting.John McCall
Language-design credit goes to a lot of people, but I particularly want to single out Blaine Garst and Patrick Beard for their contributions. Compiler implementation credit goes to Argyrios, Doug, Fariborz, and myself, in no particular order. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133103 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-13Put local variables in appropriate debug info scope.Devang Patel
This fixes radar 8757124. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@132949 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-11Implement Objective-C Related Result Type semantics.Douglas Gregor
Related result types apply Cocoa conventions to the type of message sends and property accesses to Objective-C methods that are known to always return objects whose type is the same as the type of the receiving class (or a subclass thereof), such as +alloc and -init. This tightens up static type safety for Objective-C, so that we now diagnose mistakes like this: t.m:4:10: warning: incompatible pointer types initializing 'NSSet *' with an expression of type 'NSArray *' [-Wincompatible-pointer-types] NSSet *array = [[NSArray alloc] init]; ^ ~~~~~~~~~~~~~~~~~~~~~~ /System/Library/Frameworks/Foundation.framework/Headers/NSObject.h:72:1: note: instance method 'init' is assumed to return an instance of its receiver type ('NSArray *') - (id)init; ^ It also means that we get decent type inference when writing code in Objective-C++0x: auto array = [[NSMutableArray alloc] initWithObjects:@"one", @"two",nil]; // ^ now infers NSMutableArray* rather than id git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@132868 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-19Fix location of setter/getter synthesized for a property.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131701 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-15Use arrays and SmallVectors instead of std::vectors when building functionJohn McCall
types. Also, cache a translation of 'void' in CGM and provide a ptrdiff_t alias. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131373 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-09Rename "hasTrivialConstructor" to "hasTrivialDefaultConstructor" andSean Hunt
modify the semantics slightly to accomodate default constructors (I hope). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131087 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-02Simplify code a bit by using CallArgList::add. No intended functionality ↵Eli Friedman
change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@130699 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-06Refine rules for atomic property api toFariborz Jahanian
pass a previously failing clang test. // rdar://8808439 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@129004 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-05Fixes a regression caused by my last patch. Fariborz Jahanian
As a result, I had to remove a c++ version of a clang test which requires more scrutiny on my part. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128950 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-05Generate atomic api for atomic properties (x86 and x86_64Fariborz Jahanian
targets) when load/store results in multiple instructions. // rdar://8808439 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128937 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-30Fix IRGen issues related to using property-dot syntaxFariborz Jahanian
for prperty reference types. // rdar://9208606. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128551 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-30Remove PHINode::reserveOperandSpace(). Instead, add a parameter toJay Foad
PHINode::Create() giving the (known or expected) number of operands. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128538 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-30(Almost) always call reserveOperandSpace() on newly created PHINodes.Jay Foad
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128534 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-28Implements property of reference types. AddingFariborz Jahanian
an executable test to llvm test suite. // rdar://9070460. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128435 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-22Make the property accessor functions that take a ptrdiff_t actually take a ↵David Chisnall
ptrdiff_t instead of a long (should have no impact on any sane platforms, but win64 is not sane). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128104 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-22The emission of an Objective-C++'s class .cxx_destruct method should beJohn McCall
conditioned on whether it has any destructible ivars, not on whether it has any non-trivial class-object initializers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128074 91177308-0d34-0410-b5e6-96231b3b80d8
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