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path: root/lib/Sema/SemaDecl.cpp
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2008-09-17Fix http://llvm.org/bugs/show_bug.cgi?id=2760.Steve Naroff
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56280 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-12Add --suppress-system-warnings (on by default, use =0 to disable)Daniel Dunbar
- For investigating warnings in system headers / builtins. - Currently also enables the behavior that allows silent redefinition of types in system headers. Conceptually these are separate but I didn't feel it was worth two options (or changing LangOptions). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56163 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-09Add Sema::isDeclInScope which wraps IdentifierResolver::isDeclInScope.Argyrios Kyrtzidis
No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56014 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-09Tweak implementation for allowing ObjC builtin type redefinitions.Steve Naroff
- Replace string comparisons with pre-defined idents. - Avoid calling isBuiltinObjCType() to avoid two checks. - Remove isBuiltinObjCType(), since it was only used in Sema::MergeTypeDefDecl(). - Have Sema::MergeTypeDefDecl() set the new type. This is a moidified version of an patch by David Chisnall. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@55990 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-08Add ThreadSpecified bit to Decl.Daniel Dunbar
- Patch from Kevin Tew. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@55940 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-05Add comment back that Argiris pointed out that I mistakenly removed (the ↵Ted Kremenek
comments below it were stale, so I accidently removed the whole thing). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@55841 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-05Change struct forward declarations and definitions to use unique ↵Ted Kremenek
RecordDecls, as opposed to creating a single RecordDecl and reusing it. This change effects both RecordDecls and CXXRecordDecls, but does not effect EnumDecls (yet). The motivation of this patch is as follows: - Capture more source information, necessary for refactoring/rewriting clients. - Pave the way to resolve ownership issues with RecordDecls with the forthcoming addition of DeclGroups. Current caveats: - Until DeclGroups are in place, we will leak RecordDecls not explicitly referenced by the AST. For example: typedef struct { ... } x; The RecordDecl for the struct will be leaked because the TypedefDecl doesn't refer to it. This will be solved with DeclGroups. - This patch also (temporarily) breaks CodeGen. More below. High-level changes: - As before, TagType still refers to a TagDecl, but it doesn't own it. When a struct/union/class is first referenced, a RecordType and RecordDecl are created for it, and the RecordType refers to that RecordDecl. Later, if a new RecordDecl is created, the pointer to a RecordDecl in RecordType is updated to point to the RecordDecl that defines the struct/union/class. - TagDecl and RecordDecl now how a method 'getDefinition()' to return the TagDecl*/RecordDecl* that refers to the TagDecl* that defines a particular enum/struct/class/union. This is useful from going from a RecordDecl* that defines a forward declaration to the RecordDecl* that provides the actual definition. Note that this also works for EnumDecls, except that in this case there is no distinction between forward declarations and definitions (yet). - Clients should no longer assume that 'isDefinition()' returns true from a RecordDecl if the corresponding struct/union/class has been defined. isDefinition() only returns true if a particular RecordDecl is the defining Decl. Use 'getDefinition()' instead to determine if a struct has been defined. - The main changes to Sema happen in ActOnTag. To make the changes more incremental, I split off the processing of enums and structs et al into two code paths. Enums use the original code path (which is in ActOnTag) and structs use the ActOnTagStruct. Eventually the two code paths will be merged, but the idea was to preserve the original logic both for comparison and not to change the logic for both enums and structs all at once. - There is NO CHAINING of RecordDecls for the same RecordType. All RecordDecls that correspond to the same type simply have a pointer to that type. If we need to figure out what are all the RecordDecls for a given type we can build a backmap. - The diff in CXXRecordDecl.[cpp,h] is actually very small; it just mimics the changes to RecordDecl. For some reason 'svn' marks the entire file as changed. Why is CodeGen broken: - Codegen assumes that there is an equivalence between RecordDecl* and RecordType*. This was true before because we only created one RecordDecl* for a given RecordType*, but it is no longer true. I believe this shouldn't be too hard to change, but the patch was big enough as it is. I have tested this patch on both the clang test suite, and by running the static analyzer over Postgresql and a large Apple-internal project (mix of Objective-C and C). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@55839 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-05Remove stale comments.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@55822 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-05Remove "NextDecl" from RecordDecl. This change touches many files that ↵Ted Kremenek
where RecordDecl or CXXRecordDecl was constructed, always with an argument of 'NULL' for the previous declaration. The motivation behind this change is that chaining the RecordDecls is simply unnecessary. Once we create multiple RecordDecls for the same struct/union/class, clients that care about all the declarations of the same struct can build a back map by seeing which Decls refer to the same RecordType. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@55821 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-03Set register storage class correctly for function parameters.Daniel Dunbar
- PR2730 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@55739 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-03Fix 80 col violations.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@55707 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-02When creating CXXRecordDecls and RecordDecls within ActOnTag, hook up the ↵Ted Kremenek
new [CXX]RecordDecl with the RecordDecl chain. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@55652 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-02Fix for PR2747: allow pointer->int casts with a null base; these are Eli Friedman
offset-of-like expressions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@55627 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-01Backing out r55607 due to logic errors and test regression.Eli Friedman
I'll try to come up with a correct fix for the testcase sometime soon. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@55614 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-01fix one more this-is-not-a-constant error. test includedNuno Lopes
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@55609 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-01make CheckArithmeticConstantExpression() aware of &foo and pointersNuno Lopes
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@55607 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-29minor cleanupNico Weber
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@55538 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-26Move implicit Obj-C param creation into ObjCMethodDecl.Daniel Dunbar
- Add ObjCMethodDecl::createImplicitParams. - Remove ObjCMethodDecl::set{Self,Cmd}Decl - Remove Sema::CreateImplicitParameter No (intended) functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@55356 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-25Do typechecking and codegen for K&R-style function declarations Eli Friedman
correctly. Not a regression, but made more obvious by my recent fix which made function type compatibility checking a bit more strict. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@55339 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-25Fix for PR2720; be a little bit more permissive in initializers for Eli Friedman
casting pointers to integers. Eventually, we should check whether we can evaluate an expression using Expr::tryEvaluate, and this codepath should be tightened to only handle standard-compliant cases. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@55331 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-22Initial sema support for C++ static initializers.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@55166 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-22Rewrite type compatibility testing to do type merging rather than just Eli Friedman
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@55158 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-20Added ObjCAtDefsFieldDecl to represent FieldDecls created by @defs.Ted Kremenek
This fixes an ownership issue where FieldDecls could be owned both by an ObjCInterfaceDecl and a RecordDecl. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@55037 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-18Add ExplicitCastExpr to replace the current CastExpr, and have ↵Argyrios Kyrtzidis
ImplicitCastExpr and ExplicitCastExpr derive from a common base class (CastExpr): Expr -> CastExpr -> ExplicitCastExpr -> ImplicitCastExpr git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54955 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-17various updates to match r54873 on mainline.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54874 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-11More #include cleaningDaniel Dunbar
- 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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54632 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-11More #include cleaningDaniel Dunbar
- Drop {Decl.h,DeclObjC.h,IdentifierTable.h} from Expr.h - Moved Sema::getCurMethodDecl() out of line (dependent on ObjCMethodDecl via dyn_cast). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54629 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-11More #include cleaningDaniel Dunbar
- Drop Diagnostic.h from DeclSpec.h, move utility Diag methods into implementation .cpp git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54626 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-10Cleanup from yesterday...make isTentativeDefinition() a static helper ↵Steve Naroff
function (no need for it to be part of the Sema API). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54613 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-10Sema::CheckForFileScopedRedefinitions(): Make sure tentative decls of ↵Steve Naroff
incomplete array types are completed (and diagnosed properly). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54612 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-10rename PreDefinedExpr -> PredefinedExprChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54605 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-09Fix Sema::MergeVarDecl() to better handle type compatibility. The previous ↵Steve Naroff
code was trying to handle arrays specially (which didn't work for pointers to array). Removed local helper function areEquivalentArrayTypes(), replacing it's use with the more general ASTContext::typesAreCompatible() predicate. Even though the test case this fixes is in "tentative-decls.c", this bug didn't have anything to do with our handling of tentative definitions (which is what I first expected). In any event, this is a tricky area of the spec. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54583 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-09When in C++, invoke ASTConsumer::HandleTagDeclDefinition in ↵Argyrios Kyrtzidis
Sema::ActOnFinishCXXClassDef, at which point the C++ struct/class/union is fully parsed. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54569 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-08Fix issues with C "tentative" definitions.Steve Naroff
- Move checking from MergeVarDecl->FinializeDeclaratorGroup. Since MergeVarDecl is called before the initializer is attacted, it can't be done there (this removes a long standing FIXME). - Add Sema::isTentativeDefinition() and Sema::CheckForFileScopedRedefinitions(). - Remove FIXME's and touch-up test case. Still some more work to do (forthcoming)... git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54533 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-07Sema::ActOnEnumBody(): handle nested enum redefinitions.Steve Naroff
Fixes <rdar://problem/6093889> Nested enum redefinition crashes sema. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54463 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-06Implement GNU asm-label extension support in CodeGen. This fixesDaniel Dunbar
scimark2 on Darwin. - Added Sema support for asm-label on variables, which I forgot before. - Update CodeGen to use GlobalDeclMap to determine if static Decls require emission (instead of LLVM module name lookup). Important since the Decl name and the LLVM module name can differ. - <rdar://problem/6116729> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54388 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-05Move AsmLabel into Declarator instead of just a parameter toDaniel Dunbar
ActOnDeclarator. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54353 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-05Add more Parser/Sema support for GCC asm-label extension.Daniel Dunbar
- ActOnDeclarator now takes an additional parameter which is the AsmLabel if used. Its unfortunate that this bubbles up this high, but we cannot just lump it in as an attribute without mistakenly *accepting* it as an attribute. - The actual asm-label itself is, however, encoded as an AsmLabelAttr on the FunctionDecl. - Slightly improved parser error recovery on malformed asm-labels. - CodeGen support still missing... git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54339 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-04Finally fix PR2189. This makes a fairly invasive but important change toChris Lattner
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54317 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-01Wherever a type is used/returned from the Action module, use TypeTy instead ↵Argyrios Kyrtzidis
of DeclTy or void. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54265 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-26change more instances of QualType::getCanonicalType to callChris Lattner
ASTContext::getCanonicalType instead (PR2189) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54105 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-25Reject typedef redefinitions when the underlying types are not identical,Chris Lattner
even if in a system header etc. rdar://6079937 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54038 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-25Move fix in r54013 from the parser to sema.Steve Naroff
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54032 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-23When constructing an ObjCIvarDecl object in Sema, provide its visibility up ↵Ted Kremenek
front instead of setting it afterwards. This change also fixes a subtle bug where the access control of an ivar would be initialized to garbage if we didn't have an explicit visibility specifier (e.g., @private). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@53955 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-21minor cleanup to the actions interface to pass around SmallVectorImpl insteadChris Lattner
of a specific smallvector size. Fix protocol lists to pass down proper location info, so we get diagnostics like this: t.m:3:35: error: cannot find protocol definition for 'NSCopying', referenced by 'NSWhatever' @interface NSWhatever : NSObject <NSCopying> ^ instead of this: t.m:3:44: error: cannot find protocol definition for 'NSCopying', referenced by 'NSWhatever' @interface NSWhatever : NSObject <NSCopying> ^ Add a new IdentifierLocPair typedef which is just a pair<IdentifierInfo*, SourceLocation> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@53883 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-17Unify ctx_iterator/ctx_begin()/ctx_end() and iterator/begin()/end() so that ↵Argyrios Kyrtzidis
a single iterator type is used for both traversing decls of the same declaration context *and* of the parent declaration contexts, depending on the value of the bool parameter 'LookInParentCtx' that is passed to IdentifierResolver::begin(). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@53724 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-16When in C++, make EnumConstant names hide tag names in the same scope, ↵Argyrios Kyrtzidis
instead of colliding with them. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@53702 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-16Two fixes:Steve Naroff
- Make sure ObjCIvarDecl propagates the bitfield width. - RewriteObjC::SynthesizeIvarOffsetComputation(): Avoid using the __OFFSETOF__ mumbo jumbo for bitfields (since it isn't legal C). This fixes <rdar://problem/5986079> clang ObjC rewriter: bitfields and ivar access don't mix. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@53694 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-16When checking for name collision between a tag and a previously defined ↵Argyrios Kyrtzidis
namespace, the collision occured even when the tag was in a different nested scope. Fix it by taking into account the scope when checking for namespace-tag name collisions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@53667 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-11rename "SInt" methods to "Int" in APValue.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@53467 91177308-0d34-0410-b5e6-96231b3b80d8
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