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2012-02-18Formatting.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150857 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-18Remove UpdateCompletedType from the debug info emission. We nowEric Christopher
emit less than complete types on purpose on occasion and so our caches aren't useful for this kind of lazy emitting. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150856 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-18Remove redundant check.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150855 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-17Don't emit optimization-specific intrinsic at -O0.Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150838 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-17Basic code generation support for std::initializer_list.Sebastian Redl
We now generate temporary arrays to back std::initializer_list objects initialized with braces. The initializer_list is then made to point at the array. We support both ptr+size and start+end forms, although the latter is untested. Array lifetime is correct for temporary std::initializer_lists (e.g. call arguments) and local variables. It is untested for new expressions and member initializers. Things left to do: Massively increase the amount of testing. I need to write tests for start+end init lists, temporary objects created as a side effect of initializing init list objects, new expressions, member initialization, creation of temporary objects (e.g. std::vector) for initializer lists, and probably more. Get lifetime "right" for member initializers and new expressions. Not that either are very useful. Implement list-initialization of array new expressions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150803 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-17The clang half of r150794: after the construction of a global or static constRichard Smith
variable ends, if the variable has a trivial destructor and no mutable subobjects then emit an llvm.invariant.start call for it. globalopt knows to make the variable const when evaluating this. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150798 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-17Index "12" holds the vtable, not "9".Eric Christopher
Fixes lots of gdb testsuite failures. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150797 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-17Bug fix: do not emit static const local variables with mutable membersRichard Smith
as constants. Refactor and simplify all the separate checks for whether a type can be emitted as a constant. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150793 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-17When performing IRGen on a global, emit it as a constant if:Richard Smith
1) It has a const-qualified type, and 2) It has no mutable members, and 3) It has no dynamic initialization, and 4) It has trivial destruction. Remove the unnecessary requirement that the type be POD. This allows us to mark all constexpr objects with no mutable members as 'constant'. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150792 91177308-0d34-0410-b5e6-96231b3b80d8
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
2012-02-17Rework the Sema/AST/IRgen dance for the lambda closure type'sDouglas Gregor
conversion to function pointer. Rather than having IRgen synthesize the body of this function, we instead introduce a static member function "__invoke" with the same signature as the lambda's operator() in the AST. Sema then generates a body for the conversion to function pointer which simply returns the address of __invoke. This approach makes it easier to evaluate a call to the conversion function as a constant, makes the linkage of the __invoke function follow the normal rules for member functions, and may make life easier down the road if we ever want to constexpr'ify some of lambdas. Note that IR generation is responsible for filling in the body of __invoke (Sema just adds a dummy body), because the body can't generally be expressed in C++. Eli, please review! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150783 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-16Reapply r150631:Eric Christopher
"Add a completed/incomplete type difference. This allows us to have partial types for contexts and forward decls while allowing us to complete types later on for debug purposes. This piggy-backs on the metadata replacement and rauw changes for temporary nodes and takes advantage of the incremental support I added in earlier. This allows us to, if we decide, to limit adding methods and variables to structures in order to limit the amount of debug information output into a .o file. The caching is a bit complicated though so any thoughts on untangling that are welcome." with a fix: - Remove all RAUW during type construction by adding stub versions of types that we later complete. and some TODOs: - Add an RAUW cache for forward declared types so that we can replace them at the end of compilation. - Remove the code that updates on completed types because we no longer need to have that happen. We emit incomplete types on purpose and only want to know when we want to complete them. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150752 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-16Elide copy construction in new expressions. PR11757.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150738 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-16Revert "Revert "Make CXXNewExpr contain only a single initialier, and not ↵Sebastian Redl
hold the used constructor itself."" This reintroduces commit r150682 with a fix for the Bullet benchmark crash. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150685 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-16Revert "Make CXXNewExpr contain only a single initialier, and not hold the ↵Sebastian Redl
used constructor itself." It leads to a compiler crash in the Bullet benchmark. This reverts commit r12014. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150684 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-16Make CXXNewExpr contain only a single initialier, and not hold the used ↵Sebastian Redl
constructor itself. Holding the constructor directly makes no sense when list-initialized arrays come into play. The constructor is now held in a CXXConstructExpr, if construction is what is done. The new design can also distinguish properly between list-initialization and direct-initialization, as well as implicit default-initialization constructors and explicit value-initialization constructors. Finally, doing it this way removes redundance from the AST because CXXNewExpr doesn't try to handle both the allocation and the initialization responsibilities. This breaks the static analysis of new expressions. I've filed PR12014 to track this. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150682 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-16Initial implementation of IRGen for the lambda ↵Eli Friedman
conversion-to-function-pointer operator. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150660 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-16Start of IRGen for lambda conversion operators.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150649 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-16Use the new method for specifying garbage collection metadata in the module.Bill Wendling
The garbage collection metadata needs to be merged "intelligently", when two or more modules are linked together, and not merely appended. (Appending creates a section which is too large.) The module flags metadata method is the way to do this. <rdar://problem/8198537> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150648 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-16Teach clang to add metadata tags to calls and invokes in ObjC withDan Gohman
-fno-objc-arc-exceptions. This will allow the optimizer to perform optimizations which are only safe under that flag. This is a part of rdar://10803830. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150644 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-16objc-arc: For arc's ivar layout, treat __unsafe_unretained ivarsFariborz Jahanian
as unscanned. // rdar://10832643 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150639 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-15Revert "Add a completed/incomplete type difference. This allows us to have"Eric Christopher
This reverts commit 9a68d4584afcd0853b930bd80235b58736e785b4. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150637 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-15Add a completed/incomplete type difference. This allows us to haveEric Christopher
partial types for contexts and forward decls while allowing us to complete types later on for debug purposes. This piggy-backs on the metadata replacement and rauw changes for temporary nodes and takes advantage of the incremental support I added in earlier. This allows us to, if we decide, to limit adding methods and variables to structures in order to limit the amount of debug information output into a .o file. The caching is a bit complicated though so any thoughts on untangling that are welcome. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150631 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-15Split reinterpret_casts of member pointers out from CK_BitCast; thisJohn McCall
is general goodness because representations of member pointers are not always equivalent across member pointer types on all ABIs (even though this isn't really standard-endorsed). Take advantage of the new information to teach IR-generation how to do these reinterprets in constant initializers. Make sure this works when intermingled with hierarchy conversions (although this is not part of our motivating use case). Doing this in the constant-evaluator would probably have been better, but that would require a *lot* of extra structure in the representation of constant member pointers: you'd really have to track an arbitrary chain of hierarchy conversions and reinterpretations in order to get this right. Ultimately, this seems less complex. I also wasn't quite sure how to extend the constant evaluator to handle foldings that we don't actually want to treat as extended constant expressions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150551 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-14Use a simpler (and more efficient) pattern to pad vectors.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150475 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-14Remove useless if statement.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150459 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-14Implement IRGen of lambda expressions which capture arrays.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150452 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-14Refactor out new function EmitInitializerForField from ↵Eli Friedman
EmitMemberInitializer. The new function will be used to initialize the fields of lambda expressions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150451 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-13Mark the cxa_guard_{abort,acquire,release} functions nounwind.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150435 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-13Deal with a horrible C++11 special case. If a non-literal type has a constexprRichard Smith
constructor, and that constructor is used to initialize an object of static storage duration such that all members and bases are initialized by constant expressions, constant initialization is performed. In this case, the object can still have a non-trivial destructor, and if it does, we must emit a dynamic initializer which performs no initialization and instead simply registers that destructor. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150419 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-13Add back in the code to create forward decls using temporary mdnodes.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150390 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-13Temporarily walk back a few of my recent debug info limiting changesEric Christopher
while reworking how we handle wanting to emit only parts of structures. Fixes PR11970. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150388 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
2012-02-11Basic support for referring to captured variables from lambdas. Some simple ↵Eli Friedman
examples seem to work. Tests coming up soon. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150293 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-10Fix function prolog codegen whe coerce-to type is a struct.Evgeniy Stepanov
This changes function prolog in such a way as to avoid out-of-bounds stack store in the case when coerce-to type has a larger storage size than the real argument type. Fixes PR11905. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150238 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-09Remove evil const_cast that's not needed anymore.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150210 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-09Use SmallVector when we can instead of std::vector.Bill Wendling
This looks like it had a small, but measurable performance improvement on -O0 compile time for our ObjC tests. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150208 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-09Class objects passed by value follow the same rules as structure objects.Akira Hatanaka
Double fields of by-value class objects should be passed in floating point registers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150200 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-09Fix bugs in function MipsABIInfo::returnAggregateInRegs. Functions returningAkira Hatanaka
class objects follow the same rules as those returning struct objects. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150196 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-09Don't cache the artificial type for the this pointer, there's noEric Christopher
difference in the qual type. This is a workaround for the fact that the type isn't artificial but the this decl is, however, we don't have any way of representing it in the current metadata. For now, however, just don't cache the full type. Fixes rdar://10831526 and probably a couple of others. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150159 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-09Use RAII object for cleanups.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150147 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-09Refactor lambda IRGen so AggExprEmitter::VisitLambdaExpr does the right thing.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150146 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-09CWG issue 1405: mutable members are allowed in literal types, but can't undergoRichard Smith
lvalue-to-rvalue conversions in constant expressions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150145 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-09Basic IRGen for LambdaExprs with captures.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150141 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-09A tiny bit more lambda IRGen.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150140 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-08CodeGen: Move EHPersonality from CGException.h into the cpp file, it has no ↵Benjamin Kramer
other users. While at it make it value-initializable to get rid of static ctors. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150070 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-08A little bit of lambda IRGen.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150058 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-08Constify the getClassName routine and variables that come out of it,Eric Christopher
and then use it for forward decl names. Part of rdar://10209967 and rdar://10400981 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150040 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-08Do not return records with non trivial destructors or copy constructors inAkira Hatanaka
registers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150035 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-08Use the new forward declaration scheme for records. Also add moreEric Christopher
caching of results after we create them. Fixes rdar://10809898 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150025 91177308-0d34-0410-b5e6-96231b3b80d8
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