conversions.
Added PerformImplicitConversion, which follows an implicit conversion sequence
computed by TryCopyInitialization and actually performs the implicit
conversions, including the extra check for ambiguity mentioned above.
llvm-svn: 58071
Changes:
- Sema::IsQualificationConversion determines whether we have a qualification
conversion.
- Sema::CheckSingleAssignment constraints now follows the C++ rules in C++,
performing an implicit conversion from the right-hand side to the type of
the left-hand side rather than checking based on the C notion of
"compatibility". We now rely on the implicit-conversion code to
determine whether the conversion can happen or
not. Sema::TryCopyInitialization has an ugly reference-related
hack to cope with the initialization of references, for now.
- When building DeclRefExprs, strip away the reference type, since
there are no expressions whose type is a reference. We'll need to
do this throughout Sema.
- Expr::isLvalue now permits functions to be lvalues in C++ (but not
in C).
llvm-svn: 57935
Note: One day, we should consider moving the actual diags to ObjCQualifiedIdTypesAreCompatible(), since it has more information on the actual problem. GCC currently emits slightly more instructive errors for some cases involving protocols. I added a FIXME to the code.
llvm-svn: 57529
- Modify BlockExpr to reference the BlockDecl.
This is "cleanup" necessary to improve our lookup semantics for blocks (to fix <rdar://problem/6272905> clang block rewriter: parameter to function not imported into block?).
Still some follow-up work to finish this (forthcoming).
llvm-svn: 57298
- Follow C99 behavior of using other operand type when one of
operands is a null pointer constant.
- Fix overenthusiastic devolving of any Objective-C types to id:
o If either operand has an Objective-C object type then:
- If both operands are interfaces and either operand can be
assigned to the other, use that type as the composite type.
- Otherwise, if either type is id, use id as the composite type.
- Otherwise, warn about incompatible types and use id as the
composite type.
- Return handling of qualified idea to separate test following
general pointer type checking.
o Upgraded from old code to allow devolving to id (without warning,
which matches GCC).
- <rdar://problem/6212771>
Add test case for issues fixed above, XFAIL though because it exposed
a new issue in property handling.
llvm-svn: 56135
Added a couple FIXME's wrt PointLikeType. If the author reads this, it would be great to get some background on this class (thanks in advance).
llvm-svn: 55778
- Now also searches for correct setter method.
- There are still some issues regarding validation of the setter
method and access of read-only properties.
llvm-svn: 55686
- Change Obj-C runtime message API, drop the ObjCMessageExpr arg in
favor of just result type and selector. Necessary so it can be
reused in situations where we don't want to cons up an
ObjCMessageExpr.
- Update aggregate binary assignment to know about special property
ref lvalues.
- Add CodeGenFunction::EmitCallArg overload which takes an already
emitted rvalue.
Add CodeGenFunction::StoreComplexIntoAddr.
Disabled logic in Sema for parsing Objective-C dot-syntax that
accesses methods. This code does not search in the correct order and
the AST node has no way of properly representing its results.
Updated StmtDumper to print a bit more information about
ObjCPropertyRefExprs.
llvm-svn: 55561
of RHSs to id type instead of void* if either has Objective-C object
type.
- This ensures the result can still be used in normal places an
object can be used, like a message send.
Add implicit conversions for ?: applied to qualified id types to
ensure that the RHSs are compatible.
- This prevents a codegen crash (creating invalid PHI nodes).
- Again, this relates to the fact that qualified id types have no
canonical types.
- Note that the implicit type casted to is incorrect, however this
doesn't currently cause problems because of the flexibility of the
id type.
Test cases for above.
llvm-svn: 55346
testing compatibility. This is necessary for some constructs, like merging
redeclarations.
Also, there are some ObjC changes to make sure that
typesAreCompatible(a,b) == typesAreCompatible(b,a). I don't have any
ObjC code beyond the testsuite, so please tell me if there are any cases
where this doesn't behave as expected.
llvm-svn: 55158
- UsualUnaryConversions takes an Expr *& and may modify its argument,
this broke when it was refactored into Sema::CheckCastTypes. This
meant that we were missing implicit casts in some places.
- Seems pretty sad that this got through our tests.
llvm-svn: 55039
- Added as private members for each because it is not clear where to
put the common definition. Perhaps the IdentifierInfos all of these
"pseudo-keywords" should be collected into one place (this would
KnownFunctionIDs and Objective-C property IDs, for example).
Remove Token::isNamedIdentifier.
- There isn't a good reason to use strcmp when we have interned
strings, and there isn't a good reason to encourage clients to do
so.
llvm-svn: 54794
and put the caret on the ()'s. e.g. produces:
t.c:13:9: error: called object is not a function or function pointer
((B)a)();
~~~~~~^
instead of:
t.c:13:3: error: called object is not a function or function pointer
((B)a)();
^~~~~~~~
llvm-svn: 54775
- Kill unnecessary #includes in .cpp files. This is an automatic
sweep so some things removed are actually used, but happen to be
included by a previous header. I tried to get rid of the obvious
examples and this was the easiest way to trim the #includes in one
fell swoop.
- We now return to regularly scheduled development.
llvm-svn: 54632
- Drop {Decl.h,DeclObjC.h,IdentifierTable.h} from Expr.h
- Moved Sema::getCurMethodDecl() out of line (dependent on
ObjCMethodDecl via dyn_cast).
llvm-svn: 54629
- Follows emission scheme used by llvm-gcc, i.e. invent an id for
each label whose address is taken and replace each indirect goto by
a switch to each possible target.
- Currently we emit a switch for each indirect goto instead of
merging them as llvm-gcc does.
llvm-svn: 54318
move getAsArrayType into ASTContext instead of being a method on type.
This is required because getAsArrayType(const AT), where AT is a typedef
for "int[10]" needs to return ArrayType(const int, 10).
Fixing this greatly simplifies getArrayDecayedType, which is a good sign.
llvm-svn: 54317
problem with &&/||. 2) use canonical types for comparison instead
of raw types. 3) emit an ext-warn for a gnu extension.
Also simplify the code to make it less nested.
llvm-svn: 54068
have better source ranges. Before:
t.m:11:53: error: member reference is not to a structure or union
CGFloat maxOffsetY = [_outlineLayer contentSize].height - [_outlineLayer frame].size.height;
^~~~~~~
after:
t.m:11:54: error: member reference base type ('id') is not a structure or union
CGFloat maxOffsetY = [_outlineLayer contentSize].height - [_outlineLayer frame].size.height;
~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^
llvm-svn: 53834
from:
t.m:8:7: error: member reference is not to a structure or union
pool->farm = 0;
^ ~~~~
to:
t.m:8:7: error: 'NSAutoreleasePool' has member named 'farm'
pool->farm = 0;
~~~~^ ~~~~
llvm-svn: 53824
Add some code to handle vector comparisons, which is the language side
of the llvm vicmp/vfcmp instructions. Also make the vector-vector and
vector-scalar asign checks a bit more sane under the presence of lax vector
conversions.
llvm-svn: 53565
1) add a new ASTContext::getFloatTypeSemantics method.
2) Use it from SemaExpr.cpp, CodeGenTypes.cpp and other places.
3) Change the TargetInfo.h get*Format methods to return their
fltSemantics byref instead of by pointer.
4) Change CodeGenFunction::EmitBuiltinExpr to allow builtins which
sometimes expand specially and othertimes fall back to libm.
5) Add support for __builtin_nan("") to codegen, cases that don't pass
in an empty string are currently lowered to libm calls.
6) Fix codegen of __builtin_infl.
llvm-svn: 52914
integers which have the same width and different signedness work
correctly. (The testcase in PR2501 uses a comparison between long and
unsigned int).
llvm-svn: 52853
In addition to fixing the crasher, this commit fixes further improves property lookup (by searching protocols of qualified interfaces..."NSObject <prot>").
llvm-svn: 52001
While it is far from complete, it does fix the following <rdar://problem/5967199> clang on xcode: error: member reference is not to a structure or union
llvm-svn: 51719
the condidtional have compatible types, they are not necessarily the
same type. Therefore, we cast to the composite type. As a hack, for
the moment we assume that the composite type is the type of the
left-hand expression; this isn't correct, but it's good enough for most
purposes.
llvm-svn: 51202
expressing the full flexibility of the LLVM shufflevector instruction.
The expected immediate usage is in *mmintrin.h, so that they don't
depend on the mess of gcc-inherited (and not completely implemented)
shuffle builtins.
llvm-svn: 51113
vector of the same element type and half the width, with the high, low, even,
and odd elements respectively.
Allow member references to member references, so that .hi.hi gives you the high
quarter of a vector. This is fairly convenient syntax for some insert/extract
operations.
Remove some unnecessary methods/types in the ExtVectorElementExpr class.
llvm-svn: 50892
-NamespaceDecl for the AST
-Checks for name clashes between namespaces and tag/normal declarations.
This commit doesn't implement proper name lookup for namespaces.
llvm-svn: 50321
While it is similar to the other compatibility predicates in ASTContext,
it is not used by them and is different.
In addition, greatly simplify ObjCQualifiedIdTypesAreCompatible and
fix some canonical type bugs. Also, simplify my Type::getAsObjC* methods.
llvm-svn: 49313
(1) Remove IdLoc (it's never used).
(2) Add a bool to enable/disable lazy builtin creaation (defaults to true).
This enables us to use LookupDecl() in Sema::isTypeName(), which is also part of this commit.
To make this work, I changed isTypeName() to be a non-const member function. I'm not happy with this, however I fiddled with making LookupDecl() and friends const and it got ugly pretty quickly. We can certainly add it back if/when someone has time to fiddle with it. For now, I thought this simplification was more important than retaining the const-ness.
llvm-svn: 49087
object type". Add a predicate that checks exactly this, as it is equivalent
to checking ot see if the type is *not* a function type, which is faster
to check.
llvm-svn: 49082
First, we got several CVR propagation cases wrong, which Eli pointed
out in PR2039.
Second, we didn't propagate address space qualifiers correctly, leading
to incorrect lowering of code in CodeGen/address-space.c.
Third, we didn't uniformly propagate the specifier in the array to the
pointer ("int[restrict 4]" -> "int *restrict").
This adds an ASTContext::getArrayDecayedType member that handles the
non-trivial logic for this seemingly simple operation.
llvm-svn: 49078
- Added a DenseMap to associate an IdentifierInfo with the ObjCCompatibleAliasDecl.
- Renamed LookupScopedDecl->LookupDecl and changed it's return type to Decl. Also added lookup for ObjCCompatibleAliasDecl's.
- Removed Sema::LookupInterfaceDecl(). Converted clients to used LookupDecl().
- Some minor indentation changes.
Will deal with ObjCInterfaceDecl and getObjCInterfaceDecl() in a separate commit...
llvm-svn: 49058
Fix objc ivar lookup. Ivar lookup should occur between lookup
of method-local values and lookup of globals. Emulate this with
some logic in the handling of Sema::ActOnIdentifierExpr.
Two todo's left:
1) sema shouldn't turn a bare reference to an ivar into "self->ivar"
in the AST. This is a hack.
2) The new ScopedDecl::isDefinedOutsideFunctionOrMethod method does
not correctly handle typedefs and enum constants yet.
llvm-svn: 48972
lib dir and move all the libraries into it. This follows the main
llvm tree, and allows the libraries to be built in parallel. The
top level now enforces that all the libs are built before Driver,
but we don't care what order the libs are built in. This speeds
up parallel builds, particularly incremental ones.
llvm-svn: 48402
Douglas Gregor