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path: root/lib/CodeGen/CGExprAgg.cpp
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2012-04-30Remove the ref/value inconsistency in filter_decl_iterator.David Blaikie
filter_decl_iterator had a weird mismatch where both op* and op-> returned T* making it difficult to generalize this filtering behavior into a reusable library of any kind. This change errs on the side of value, making op-> return T* and op* return T&. (reviewed by Richard Smith) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155808 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-17Fix case where the alignment is overaligned, per Eli's suggestion.Chad Rosier
rdar://11220251 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154893 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-17Make sure EmitMoveFromReturnSlot is passing the correct alignment toChad Rosier
EmitFinalDestCopy (and thus pass EmitAggregateCopy the correct alignment). rdar://11220251 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154883 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-16Propagate alignment on lvalues through EmitLValueForField. PR12395.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154789 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-15PR12226: don't generate wrong code if a braced string literal is used toRichard Smith
initialize an array of unsigned char. Outside C++11 mode, this bug was benign, and just resulted in us emitting a constant which was double the required length, padded with 0s. In C++11, it resulted in us generating an array whose first element was something like i8 ptrtoint ([n x i8]* @str to i8). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154756 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-29Revert r153613 as it's causing large compile-time regressions on the nightly ↵Chad Rosier
testers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153660 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-28When we can't prove that the target of an aggregate copy isJohn McCall
a complete object, the memcpy needs to use the data size of the structure instead of its sizeof() value. Fixes PR12204. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153613 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-11Unify naming of LangOptions variable/get function across the Clang stack ↵David Blaikie
(Lex to AST). The member variable is always "LangOpts" and the member function is always "getLangOpts". Reviewed by Chris Lattner git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152536 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-10Remove BlockDeclRefExpr and introduce a bit on DeclRefExpr toJohn McCall
track whether the referenced declaration comes from an enclosing local context. I'm amenable to suggestions about the exact meaning of this bit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152491 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-10Unify the BlockDeclRefExpr and DeclRefExpr paths so thatJohn McCall
we correctly emit loads of BlockDeclRefExprs even when they don't qualify as ODR-uses. I think I'm adequately convinced that BlockDeclRefExpr can die. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152479 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-29Make sure list-initialization of arrays works correctly in explicit type ↵Eli Friedman
conversions. PR12121. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151674 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-25Fix crashers on unexpected std::initializer_list layouts. Found by inspection.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151456 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-24Fix a stupid mistake in r151133. Reported to me by Joerg Sonnenberger.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151407 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-23Try to handle qualifiers more consistently for array InitListExprs. Fixes ↵Eli Friedman
<rdar://problem/10907510>, and makes the ASTs a bit more self-consistent. (I've chosen to keep the qualifiers, but it isn't a strong preference; if anyone prefers removing them, please yell.) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151229 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-22Make sure null initialization in arrays works correctly with ARC types. ↵Eli Friedman
<rdar://problem/10907547>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151133 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-22Generate an AST for the conversion from a lambda closure type to aDouglas Gregor
block pointer that returns a block literal which captures (by copy) the lambda closure itself. Some aspects of the block literal are left unspecified, namely the capture variable (which doesn't actually exist) and the body (which will be filled in by IRgen because it can't be written as an AST). Because we're switching to this model, this patch also eliminates tracking the copy-initialization expression for the block capture of the conversion function, since that information is now embedded in the synthesized block literal. -1 side tables FTW. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151131 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-19Make heap-allocation of std::initializer_list 'work'.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150931 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-19Get recursive initializer lists to work and add a test. Codegen of ↵Sebastian Redl
std::initializer_list is now complete. Onward to array new. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150926 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
2012-02-15Split 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
2012-02-09Refactor 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
2012-02-09A tiny bit more lambda IRGen.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150140 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-07simplify 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
2012-01-20More 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
2012-01-16Some improvements to the handling of C11 atomic types:David Chisnall
- Add atomic-to/from-nonatomic cast types - Emit atomic operations for arithmetic on atomic types - Emit non-atomic stores for initialisation of atomic types, but atomic stores and loads for every other store / load - Add a __atomic_init() intrinsic which does a non-atomic store to an _Atomic() type. This is needed for the corresponding C11 stdatomic.h function. - Enables the relevant __has_feature() checks. The feature isn't 100% complete yet, but it's done enough that we want people testing it. Still to do: - Make the arithmetic operations on atomic types (e.g. Atomic(int) foo = 1; foo++;) use the correct LLVM intrinsic if one exists, not a loop with a cmpxchg. - Add a signal fence builtin - Properly set the fenv state in atomic operations on floating point values - Correctly handle things like _Atomic(_Complex double) which are too large for an atomic cmpxchg on some platforms (this requires working out what 'correctly' means in this context) - Fix the many remaining corner cases git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148242 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-06Revert r147664; it's breaking clang regression tests.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147681 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-06Silence GCC warnings.Jakub Staszak
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147664 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-05Make EmitAggregateCopy take an alignment argument. Make EmitFinalDestCopy ↵Eli Friedman
pass in the correct alignment when known. The test includes a FIXME for a related case involving calls; it's a bit more complicated to fix because the RValue class doesn't keep track of alignment. <rdar://problem/10463337> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145862 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-03Add a utility to get a RValue for a given LValue for an aggregate; switch a ↵Eli Friedman
few places over to it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145747 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-27When destroying temporaries, instead of a custom cleanup use thePeter Collingbourne
generic pushDestroy function. This would reduce the number of useful declarations in CGTemporaries.cpp to one. Since CodeGenFunction::EmitCXXTemporary does not deserve its own file, move it to CGCleanup.cpp and delete CGTemporaries.cpp. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145202 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-10Whenever explicitly activating or deactivating a cleanup, weJohn McCall
need to provide a 'dominating IP' which is guaranteed to dominate the (de)activation point but which cannot be avoided along any execution path from the (de)activation point to the push-point of the cleanup. Using the entry block is bad mojo. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@144276 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
2011-10-25Restore r142914 and r142915, now with missing file and apparentJohn McCall
GCC compiler workaround. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142931 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-25Revert r142914 and r142915, due to possibly missing file.NAKAMURA Takumi
r142914: "Introduce a placeholder type for "pseudo object"" r142915: "Pull the pseudo-object stuff into its own file." git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142921 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-25Introduce a placeholder type for "pseudo object"John McCall
expressions: expressions which refer to a logical rather than a physical l-value, where the logical object is actually accessed via custom getter/setter code. A subsequent patch will generalize the AST for these so that arbitrary "implementing" sub-expressions can be provided. Right now the only client is ObjC properties, but this should be generalizable to similar language features, e.g. Managed C++'s __property methods. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142914 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-11Initial implementation of __atomic_* (everything except __atomic_is_lock_free).Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141632 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
2011-09-23Removing a bunch of dead returns/breaks after llvm_unreachables.David Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140407 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-23Switch assert(0/false) llvm_unreachable.David Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140367 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
2011-09-10Rename 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
2011-09-06When performing a derived-to-base cast on the right-hand side of theDouglas Gregor
synthesized move assignment within an implicitly-defined move assignment operator, be sure to treat the derived-to-base cast as an xvalue (rather than an lvalue). Otherwise, we'll end up getting the wrong constructor. Optimize a direct call to a trivial move assignment operator to an aggregate copy, as we do for trivial copy assignment operators, and update the the assertion in CodeGenFunction::EmitAggregateCopy() to cope with this optimization. Fixes PR10860. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139143 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
2011-08-26What say we document some of these AggValueSlot flags a bitJohn McCall
better. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138628 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-26Since the 'is aliased' bit is critical for correctness in C++, itJohn McCall
really shouldn't be optional. Fix the remaining place where a temporary was being passed as potentially-aliased memory. Fixes PR10756. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138627 91177308-0d34-0410-b5e6-96231b3b80d8
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