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2012-02-17Whether an argument is required (in contrast with being anJohn McCall
optional argument passed through the variadic ellipsis) potentially affects how we need to lower it. Propagate this information down to the various getFunctionInfo(...) overloads on CodeGenTypes. Furthermore, rename those overloads to clarify their distinct purposes, and make sure we're calling the right one in the right place. This has a nice side-effect of making it easier to construct a function type, since the 'variadic' bit is no longer separable. This shouldn't really change anything for our existing platforms, with one minor exception --- we should now call variadic ObjC methods with the ... in the "right place" (see the test case), which I guess matters for anyone running GNUStep on MIPS. Mostly it's just a substantial clean-up. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150788 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-11Represent C++ direct initializers as ParenListExprs before semantic analysisSebastian Redl
instead of having a special-purpose function. - ActOnCXXDirectInitializer, which was mostly duplication of AddInitializerToDecl (leading e.g. to PR10620, which Eli fixed a few days ago), is dropped completely. - MultiInitializer, which was an ugly hack I added, is dropped again. - We now have the infrastructure in place to distinguish between int x = {1}; int x({1}); int x{1}; -- VarDecl now has getInitStyle(), which indicates which of the above was used. -- CXXConstructExpr now has a flag to indicate that it represents list- initialization, although this is not yet used. - InstantiateInitializer was renamed to SubstInitializer and simplified. - ActOnParenOrParenListExpr has been replaced by ActOnParenListExpr, which always produces a ParenListExpr. Placed that so far failed to convert that back to a ParenExpr containing comma operators have been fixed. I'm pretty sure I could have made a crashing test case before this. The end result is a (I hope) considerably cleaner design of initializers. More importantly, the fact that I can now distinguish between the various initialization kinds means that I can get the tricky generalized initializer test cases Johannes Schaub supplied to work. (This is not yet done.) This commit passed self-host, with the resulting compiler passing the tests. I hope it doesn't break more complicated code. It's a pretty big change, but one that I feel is necessary. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150318 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-07simplify a bunch of code to use the well-known LLVM IR types computed by ↵Chris Lattner
CodeGenModule. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149943 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-29revert r149184Fariborz Jahanian
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149205 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-28objc-arc: Perform null check on receiver before sending methods whichFariborz Jahanian
consume one or more of their arguments. If not done, this will cause a leak as method will not consume the argument when receiver is null. // rdar://10444474 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149184 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-26Use function pointers, rather than references, to pass DestroyersPeter Collingbourne
around, in the process cleaning up the various gcc/msvc compiler workarounds. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149036 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-20More dead code removal (using -Wunreachable-code)David Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148577 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-10objc++: patch for IRgen for atomic properties ofFariborz Jahanian
c++ objects with non-trivial assignment/copy functions. Also, one additional sema check. // rdar://6137845 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147817 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-08objc++: more atomic property api code forFariborz Jahanian
c++ object properties. wip. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147750 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-07objc++: More codegen stuff for atomic properties of c++ objectsFariborz Jahanian
with non-trivial copies. // rdar://6137845 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147735 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-06objc++: more code gen stuff for atomic property api,Fariborz Jahanian
currently turned off. // rdar://6137845 Also, fixes a test case which should be nonatomic under new API. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147691 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-06objc++: sythesize a helper function to be usedFariborz Jahanian
for copying atomic properties of c++ objects with non-trivial copy assignment in setters/getters. Not yet used. // rdar://6137845 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147636 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-05Fixes a code gen bug for setter code for a property ofFariborz Jahanian
c++ object reference type with trivial copy constructor. This causes an assert crash and bad code gen. when assert is off. // rdar://6137845 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147573 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-03Switch LValue so that it exposes alignment in CharUnits. (No functional ↵Eli Friedman
change.) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145753 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-10Enter the cleanups for a block outside the enclosingJohn McCall
full-expression. Naturally they're inactive before we enter the block literal expression. This restores the intended behavior that blocks belong to their enclosing scope. There's a useful -O0 / compile-time optimization that we're missing here with activating cleanups following straight-line code from their inactive beginnings. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@144268 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-07Rip out CK_GetObjCProperty.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143910 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-07Rip the ObjCPropertyRef l-value kind out of IR-generation.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143908 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-06Change the AST representation of operations on Objective-CJohn McCall
property references to use a new PseudoObjectExpr expression which pairs a syntactic form of the expression with a set of semantic expressions implementing it. This should significantly reduce the complexity required elsewhere in the compiler to deal with these kinds of expressions (e.g. IR generation's special l-value kind, the static analyzer's Message abstraction), at the lower cost of specifically dealing with the odd AST structure of these expressions. It should also greatly simplify efforts to implement similar language features in the future, most notably Managed C++'s properties and indexed properties. Most of the effort here is in dealing with the various clients of the AST. I've gone ahead and simplified the ObjC rewriter's use of properties; other clients, like IR-gen and the static analyzer, have all the old complexity *and* all the new complexity, at least temporarily. Many thanks to Ted for writing and advising on the necessary changes to the static analyzer. I've xfailed a small diagnostics regression in the static analyzer at Ted's request. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143867 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-15Replace vectors with arrays.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142072 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-13Recommit:Eric Christopher
Start handling debug line and scope information better: Migrate most of the location setting within the larger API in CGDebugInfo and update a lot of callers. Remove the existing file/scope change machinery in UpdateLineDirectiveRegion and replace it with DILexicalBlockFile usage. Finishes off the rest of rdar://10246360 after fixing a few bugs that were exposed in gdb testsuite testing. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141893 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-12Revert file/scope handling patches. gdb testing revealed a couple of bugs.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141796 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-11Start handling debug line and scope information better:Eric Christopher
Migrate most of the location setting within the larger API in CGDebugInfo and update a lot of callers. Remove the existing file/scope change machinery in UpdateLineDirectiveRegion and replace it with DILexicalBlockFile usage. Finishes off the rest of rdar://10246360 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141732 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-04Mark calls to objc_retainBlock that don't result from castsJohn McCall
to id so that we can still optimize them appropriately. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141064 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-03Allow getting all source locations of selector identifiers in a ObjCMethodDecl.Argyrios Kyrtzidis
Instead of always storing all source locations for the selector identifiers we check whether all the identifiers are in a "standard" position; "standard" position is -Immediately before the arguments: -(id)first:(int)x second:(int)y; -With a space between the arguments: -(id)first: (int)x second: (int)y; -For nullary selectors, immediately before ';': -(void)release; In such cases we infer the locations instead of storing them. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140989 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-01When performing an @throw in ARC, retain + autoreleaseJohn McCall
the pointer, being sure to do so before running cleanups associated with that full-expression. rdar://10042689 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140945 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-29Change "Regions" to be "LexicalBlocks" since that's what theyEric Christopher
correspond to. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140740 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-27de-tmpify clang.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140637 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-13Turn off the generation of unaligned atomic load/store; I'm going to ↵Eli Friedman
explicitly error out on such cases in the backend, at least for the moment. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139640 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-13Refactoring, mostly to give ObjCPropertyDecls stronger invariants forJohn McCall
their semantic attributes and then to take advantage of that. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139615 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-13Switch LangOptions over to a .def file that describes header of theDouglas Gregor
language options. Use that .def file to declare the LangOptions class and initialize all of its members, eliminating a source of annoying initialization bugs. AST serialization changes are next up. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139605 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-13Don't use native atomics on ivars whose size is not a power of two,John McCall
even on architectures that support unaligned access (which is the only way this is otherwise legal, given that ivars apparently do not honor alignment attributes). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139590 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-13Handle reference properties correctly in the trivial-getter check.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139585 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-13Always emit bitfield properties using expression behavior, even if they'reJohn McCall
atomic. This is probably something we should warn about. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139584 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-13Unify the decision of how to emit property getters and setters into aJohn McCall
single code path. Use atomic loads and stores where necessary. Load and store anything of the appropriate size and alignment with primitive operations instead of going through the call. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139580 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-12Privatize the setter/getter call generation methods, plus some minorJohn McCall
modernization. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139555 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-10Modernize and comment; no functionality change.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139470 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-10Simplify the generation of Objective-C setters, at least a little.John McCall
Use a more portable heuristic for deciding when to emit a single atomic store; it's possible that I've lost information here, but I'm not sure how much of the logic before was intentionally arch-specific and how much was just not quite consistent. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139468 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-10Rename the ARC cast kinds to start with "ARC".John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139466 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-10When converting a block pointer to an Objective-C pointer type, extendJohn McCall
the lifetime of the block by copying it to the heap, or else we'll get a dangling reference because the code working with the non-block-typed object will not know it needs to copy. There is some danger here, e.g. with assigning a block literal to an unsafe variable, but, well, it's an unsafe variable. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139451 91177308-0d34-0410-b5e6-96231b3b80d8
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
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