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2010-05-16when code completing inside a C-style block comment, don't emit errors aboutChris Lattner
a missing */ since we truncated the file. This fixes rdar://7948776 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103913 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-16Moved clang-builtin include dir position to immediately precede C includes.mike-m
This aligns with how gcc compiler does things. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103912 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-16Correctly diagnose array 'new' with initialization arguments when the new ↵Anders Carlsson
type is a typedef to an array type. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103909 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-16When the type-id or new-type-id of a C++ "new" expression is a typedefDouglas Gregor
of an array type, use the outermost array bound as the number of elements to allocate. Fixes PR7147. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103908 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-16Don't emit any fallthrough / missing-noreturn warnings if we can'tJohn McCall
compute a CFG for a function. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103905 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-16When constant folding reference variables with an initializer to theChandler Carruth
initializer, don't fold paramters. Their initializers are just default arguments which can be overridden. This fixes some spectacular regressions due to more things making it into the constant folding. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103904 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-16fix rdar://7985267 - Don't emit an error about a non-pod argumentChris Lattner
passed to va_start, it doesn't actually pass it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103899 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-16Emit a type record for TYPE_OBJC_OBJECT in the PCH file. I'm notJohn McCall
entirely sure what this does, to be honest. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103895 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-16Avoid doing two switches in TypeLoc's initialize() loop. The optimizerJohn McCall
can probably do this for us, but it's actually somewhat nicer to write it out here. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103893 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-16When initializing thread-safe statics, put the call toDouglas Gregor
__cxa_guard_abort along the exceptional edge into (in effect) a nested "try" that rethrows after aborting. Fixes PR7144 and the remaining Boost.ProgramOptions failures, along with the regressions that r103880 caused. The crucial difference between this and r103880 is that we now follow LLVM's little dance with the llvm.eh.exception and llvm.eh.selector calls, then use _Unwind_Resume_or_Rethrow to rethrow. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103892 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-16Revert r103880 (thread-safe static initialization w/ exceptions),Douglas Gregor
because it's causing strange linker errors. Unfixes PR7144. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103890 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-16Minor twik to my last patch. (for radar 7986354).Fariborz Jahanian
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103889 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-15Fix API gen for objc_msgSend property of aggregate typesFariborz Jahanian
in Objective-c++ mode. Fixes radar 7986354. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103887 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-15When initializing thread-safe statics, put the call toDouglas Gregor
__cxa_guard_abort along the exceptional edge into (in effect) a nested "try" that rethrows after aborting. Fixes PR7144 and the remaining Boost.ProgramOptions failures. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103880 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-15Modify this comment per Doug's suggestion: we don't need to mangle protocols.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103875 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-15fix _mm_shuffle_pd too, thanks to Joel Falcou for pointing this out.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103873 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-15When applying the named return value optimization, we still need toDouglas Gregor
destroy the variable along the exceptional edge; it's only during normal execution that we avoid destroying this variable. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103872 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-15Substantially alter the design of the Objective C type AST by introducingJohn McCall
ObjCObjectType, which is basically just a pair of one of {primitive-id, primitive-Class, user-defined @class} with a list of protocols. An ObjCObjectPointerType is therefore just a pointer which always points to one of these types (possibly sugared). ObjCInterfaceType is now just a kind of ObjCObjectType which happens to not carry any protocols. Alter a rather large number of use sites to use ObjCObjectType instead of ObjCInterfaceType. Store an ObjCInterfaceType as a pointer on the decl rather than hashing them in a FoldingSet. Remove some number of methods that are no longer used, at least after this patch. By simplifying ObjCObjectPointerType, we are now able to easily remove and apply pointers to Objective-C types, which is crucial for a certain kind of ObjC++ metaprogramming common in WebKit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103870 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-15Implement a simple form of the C++ named return value optimization forDouglas Gregor
return statements. We perform NRVO only when all of the return statements in the function return the same variable. Fixes some link failures in Boost.Interprocess (which is relying on NRVO), and probably improves performance for some C++ applications. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103867 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-15Implement semantic analysis and an AST representation for the namedDouglas Gregor
return value optimization. Sema marks return statements with their NRVO candidates (which may or may not end up using the NRVO), then, at the end of a function body, computes and marks those variables that can be allocated into the return slot. I've checked this locally with some debugging statements (not committed), but there won't be any tests until CodeGen comes along. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103865 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-15add type casts to _mm_shuffle_ps so the front-end appliesChris Lattner
implicit conversions where needed. This fixes an error reported on cfe-dev, not really worth a testcase though. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103864 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-15Recognize when the named return value optimization applies in aDouglas Gregor
"return" statement and mark the corresponding CXXConstructExpr as elidable. Teach CodeGen that eliding a temporary is different from eliding an object construction. This is just a baby step toward NRVO. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103849 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-15C++/ABI/x86_64: Member pointers should be classified as INTEGER.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103843 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-15C++/ABI/i386: Member function pointers should be passed by value.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103842 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14Driver: Make -fverbose-asm the default for platforms where the integratedDaniel Dunbar
assembler defaults to on. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103825 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14Patch to fix a crash on incomplete class declaration.Fariborz Jahanian
Radar 7923673. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103812 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14Emit an lvalue dynamic_cast even if the result is not used. AnotherDouglas Gregor
part (or possibly all) of PR7132. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103810 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14When a failed dynamic_cast<T&> (which is an lvalue) results in aDouglas Gregor
throw, it should use invoke when needed. The fixes the Boost.Statechrt failures that motivated PR7132, but there are a few side issues to tackle as well. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103803 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14Remove an unused function.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103793 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14Move ContainsPointerToDataMember to CodeGenTypes. No functionality change.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103792 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14Implement new default property synthesis rules. Essentially, no longerFariborz Jahanian
user directive is needed to force a property implementation. It is decided based on those propeties which are declared in the class (or in its protocols) but not those which must be default implemented by one of its super classes. Implements radar 7923851. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103787 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14Improve error recovery in C/ObjC when the first argument of a functionChris Lattner
declarator is incorrect. Not being a typename causes the parser to dive down into the K&R identifier list handling stuff, which is almost never the right thing to do. Before: r.c:3:17: error: expected ')' void bar(intptr y); ^ r.c:3:9: note: to match this '(' void bar(intptr y); ^ r.c:3:10: error: a parameter list without types is only allowed in a function definition void bar(intptr y); ^ After: r.c:3:10: error: unknown type name 'intptr'; did you mean 'intptr_t'? void bar(intptr y); ^~~~~~ intptr_t r.c:1:13: note: 'intptr_t' declared here typedef int intptr_t; ^ This fixes rdar://7980651 - poor recovery for bad type in the first arg of a C function git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103783 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14Refactor ParseFunctionDeclaratorIdentifierList to have the firstChris Lattner
identifier in the identifier list consumed before it is called. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103781 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14Added Expr::EvaluateAsAnyLValue.Abramo Bagnara
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103780 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14Fix thinko in yesterday's fix.Devang Patel
Providing linkage name for function static variable confuses gdb, so don't do that. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103779 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14Revert r103770, "Added basic source locations to Elaborated and DependentNameDaniel Dunbar
types.", it is breaking Clang bootstrap. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103775 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14Make sure that value-initialized pointers to data members are initialized ↵Anders Carlsson
correctly. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103771 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14Added basic source locations to Elaborated and DependentName types.Abramo Bagnara
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103770 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14Namespaces can only be defined at global or namespace scope. Fixes PR6596.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103767 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14Make sure to search semantic scopes and appropriate template-parameterDouglas Gregor
scopes during unqualified name lookup that has fallen out to namespace scope. Fixes PR7133. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103766 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14A vtable is used if the key function is defined... even if that keyDouglas Gregor
function's definition is an out-of-class definition marked "inline". Fixes an assertion in WebKit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103763 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14C++/Darwin/x86: Teach IRgen it can pass reference types in registers.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103761 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14Driver: Enable -integrated-as by default, at least for Darwin/x86 without ↵Daniel Dunbar
-static. - How else will we figure out what is broken, eh? git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103759 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-13Fix context in class static variable's debugging information entry.Devang Patel
This fixes bunch of failures in gdb testsuite. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103745 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-13Disable the available_externally optimization for inline virtualDouglas Gregor
methods for which the key function is guaranteed to be in another translation unit. Unfortunately, this guarantee isn't the case when dealing with shared libraries that fail to export these virtual method definitions. I'm reopening PR6747 so we can consider this again at a later point in time. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103741 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-13Objective-C++ Sema. Fix a bug in instantiation of receivers.Fariborz Jahanian
Completes radar 7963410. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103719 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-13Rework when and how vtables are emitted, by tracking where vtables areDouglas Gregor
"used" (e.g., we will refer to the vtable in the generated code) and when they are defined (i.e., because we've seen the key function definition). Previously, we were effectively tracking "potential definitions" rather than uses, so we were a bit too eager about emitting vtables for classes without key functions. The new scheme: - For every use of a vtable, Sema calls MarkVTableUsed() to indicate the use. For example, this occurs when calling a virtual member function of the class, defining a constructor of that class type, dynamic_cast'ing from that type to a derived class, casting to/through a virtual base class, etc. - For every definition of a vtable, Sema calls MarkVTableUsed() to indicate the definition. This happens at the end of the translation unit for classes whose key function has been defined (so we can delay computation of the key function; see PR6564), and will also occur with explicit template instantiation definitions. - For every vtable defined/used, we mark all of the virtual member functions of that vtable as defined/used, unless we know that the key function is in another translation unit. This instantiates virtual member functions when needed. - At the end of the translation unit, Sema tells CodeGen (via the ASTConsumer) which vtables must be defined (CodeGen will define them) and which may be used (for which CodeGen will define the vtables lazily). From a language perspective, both the old and the new schemes are permissible: we're allowed to instantiate virtual member functions whenever we want per the standard. However, all other C++ compilers were more lazy than we were, and our eagerness was both a performance issue (we instantiated too much) and a portability problem (we broke Boost test cases, which now pass). Notes: (1) There's a ton of churn in the tests, because the order in which vtables get emitted to IR has changed. I've tried to isolate some of the larger tests from these issues. (2) Some diagnostics related to implicitly-instantiated/implicitly-defined virtual member functions have moved to the point of first use/definition. It's better this way. (3) I could use a review of the places where we MarkVTableUsed, to see if I missed any place where the language effectively requires a vtable. Fixes PR7114 and PR6564. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103718 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-13Don't add a null successor to a CFGBlock when the contents of an ↵Ted Kremenek
@synchronized statement is empty. Fixes <rdar://problem/7979430>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103717 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-13Teach the AKA calculation to look at sugar on the pointee type for pointers andChandler Carruth
references. This is a WIP as we should handle function pointers, etc. Reshuffle the code to do this to facilitate recursing in this manner, and to check for the type already being printed first rather than last. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103712 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-13Rebuild builtin_id * as an ObjCObjectPointerType, where builtin_id is theJohn McCall
magic type that 'id' is a pointer to. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103708 91177308-0d34-0410-b5e6-96231b3b80d8
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