Commit Graph

2375 Commits

Author SHA1 Message Date
Fariborz Jahanian b2197042b8 ir-gen support for anonymous union data member
copying in copy constructors and used in
default constructor's initializer list.

llvm-svn: 78700
2009-08-11 18:49:54 +00:00
Douglas Gregor 2168a9f25f Fix DISABLE_SMART_POINTERS build
llvm-svn: 78674
2009-08-11 15:56:57 +00:00
John McCall d1e9d835f3 Argument-dependent lookup for friend declarations. Add a new decl type,
FriendFunctionDecl, and create instances as appropriate.

The design of FriendFunctionDecl is still somewhat up in the air;  you can
befriend arbitrary types of functions --- methods, constructors, etc. ---
and it's not clear that this representation captures that very well.
We'll have a better picture when we start consuming this data in access
control.

llvm-svn: 78653
2009-08-11 06:59:38 +00:00
Douglas Gregor a16548e301 Refactor the template-instantiation logic for expressions into a
generic tree transformation (also used for recanonicalization) and a
small amount of template-instantiation-specific logic.

llvm-svn: 78645
2009-08-11 05:31:07 +00:00
Argyrios Kyrtzidis ae438f8c03 Check whether a tag was defined in a C++ condition declaration using GetTypeForDeclarator.
llvm-svn: 78644
2009-08-11 05:20:41 +00:00
Nate Begeman 5ec4b318e3 Take 2 on AltiVec-style vector initializers.
Fixes PR4704 problems

Addresses Eli's patch feedback re: ugly cast code

Updates all postfix operators to remove ParenListExprs.  While this is awful,
no better solution (say, in the parser) is obvious to me.  Better solutions
welcome.

llvm-svn: 78621
2009-08-10 23:49:36 +00:00
Anders Carlsson ed1674d971 Add a CastInfo struct that will be used for cast information when constructing cast expressions. Right now it only stores the cast kind, but in the future it might store conversion functions and constructors.
llvm-svn: 78599
2009-08-10 21:30:22 +00:00
Chris Lattner 30ba674391 fix a couple of problems with section attributes:
1. Passing something that isn't a string used to cause:
   "argument to annotate attribute was not a string literal"
  make it say "section attribute" instead.

2. Fix the location of the above message to point to the
   bad argument instead of the section token.

3. Implement rdar://4341926, by diagnosing invalid section
   specifiers in the frontend rather than letting them slip all
   the way to the assembler (a QoI win).

An example of #3 is that we used to produce something like this:

/var/folders/n7/n7Yno9ihEm894640nJdSQU+++TI/-Tmp-//ccFPFGtT.s:2:Expected comma after segment-name
/var/folders/n7/n7Yno9ihEm894640nJdSQU+++TI/-Tmp-//ccFPFGtT.s:2:Rest of line ignored. 1st junk character valued 46 (.).

Daniel improved clang to use llvm_report_error, so now we got:

$ clang t.c -c
fatal error: error in backend: Global variable 'x' has an invalid section specifier 'sadf': mach-o section specifier
      requires a segment and section separated by a comma.

with no loc info.  Now we get:

$ clang t.c -fsyntax-only
t.c:4:30: error: argument to 'section' attribute is not valid for this target: mach-o section specifier requires a segment
      and section separated by a comma
int x __attribute__((section("sadf")));
                             ^

which is nice :)

llvm-svn: 78586
2009-08-10 19:03:04 +00:00
Daniel Dunbar 481fe50903 Revert r78535, it is causing a number of failures to build projects.
--- Reverse-merging r78535 into '.':
D    test/Sema/altivec-init.c
U    include/clang/Basic/DiagnosticSemaKinds.td
U    include/clang/AST/Expr.h
U    include/clang/AST/StmtNodes.def
U    include/clang/Parse/Parser.h
U    include/clang/Parse/Action.h
U    tools/clang-cc/clang-cc.cpp
U    lib/Frontend/PrintParserCallbacks.cpp
U    lib/CodeGen/CGExprScalar.cpp
U    lib/Sema/SemaInit.cpp
U    lib/Sema/Sema.h
U    lib/Sema/SemaExpr.cpp
U    lib/Sema/SemaTemplateInstantiateExpr.cpp
U    lib/AST/StmtProfile.cpp
U    lib/AST/Expr.cpp
U    lib/AST/StmtPrinter.cpp
U    lib/Parse/ParseExpr.cpp
U    lib/Parse/ParseExprCXX.cpp

llvm-svn: 78551
2009-08-10 03:01:36 +00:00
Ryan Flynn e64ffc277c warn, as gcc does, if __attribute__((malloc)) applied to function returning non-pointer type
llvm-svn: 78542
2009-08-09 22:36:29 +00:00
Ryan Flynn 1f1fdc070e map previously ignored __attribute((malloc)) to noalias attribute of llvm function's return
llvm-svn: 78541
2009-08-09 20:07:29 +00:00
Nate Begeman a96114ed08 AltiVec-style vector initializer syntax, vec4 a = (vec4)(a, b, c, d);
In addition to being defined by the AltiVec PIM, this is also the vector
initializer syntax used by OpenCL, so that vector literals are compatible
with macro arguments.

llvm-svn: 78535
2009-08-09 17:55:44 +00:00
Anders Carlsson f40886acca Refactor some code and implement support for global destructors for static variables.
llvm-svn: 78507
2009-08-08 21:45:14 +00:00
Anders Carlsson 2c101b3cd1 Use CastExpr::CK_ArrayToPointerDecay and fix an assert.
llvm-svn: 78502
2009-08-08 21:04:35 +00:00
Ryan Flynn 2f08571e4d PR4700 - remove shift by 0 warning
llvm-svn: 78488
2009-08-08 19:18:23 +00:00
Anders Carlsson 68e0b68289 Introduce a new PragmaPack attribute, and use it for #pragma pack. The PackedAttr now only represents __attribute__((packed)).
This is necessary because #pragma pack and __attribute__((packed)) have different semantics. No functionality change yet, but this lays the groundwork for fixing a record layout bug.

llvm-svn: 78483
2009-08-08 18:23:56 +00:00
Anders Carlsson 5fd7dad784 getFunctionLevelDeclContext needs to get the previous DeclContext if EnterDeclaratorContext has been called. Fixes PR4694. (Doug, please review)
llvm-svn: 78480
2009-08-08 17:48:49 +00:00
Anders Carlsson b26ab816a2 Factor some code to get the "function level" DeclContext out into a separate function.
llvm-svn: 78478
2009-08-08 17:45:02 +00:00
Anders Carlsson 21776b75ce Make sure to diagnose use of declarations in the case where we create an implicit CXXThisExpr.
llvm-svn: 78474
2009-08-08 16:55:18 +00:00
Edward O'Callaghan c69169d175 Patch should implement packed enums - PR4098. Credit to Anders Johnsen.
llvm-svn: 78471
2009-08-08 14:36:57 +00:00
Anders Carlsson c5c57c3b86 Get rid of Stmt::Clone now that we can reference count statements instead.
llvm-svn: 78452
2009-08-08 02:50:17 +00:00
Douglas Gregor 2c742024ff Introduce reference counting for statements and expressions, using it
to allow sharing of nodes. Simplifies some aspects of template
instantiation, and fixes both PR3444 and <rdar://problem/6757457>.

llvm-svn: 78450
2009-08-08 01:41:12 +00:00
Anders Carlsson 8fc489da2a Add a CK_ArrayToPointerDecay cast kind.
llvm-svn: 78434
2009-08-07 23:48:20 +00:00
Anders Carlsson ec143777ba Add CK_ToUnion and use it for aggregate expression codegen.
llvm-svn: 78429
2009-08-07 23:22:37 +00:00
Anders Carlsson f10e414e4e More CastKind work.
llvm-svn: 78415
2009-08-07 22:21:05 +00:00
John McCall c7e8e795fa Just add global scope to the associated namespaces set instead of tracking it
separately.  Add the framework (currently unfed) for finding friend declarations
during argument-dependent lookup.

llvm-svn: 78414
2009-08-07 22:18:02 +00:00
Anders Carlsson 4f4aab2aeb Use the correct cast kind as suggested by Doug.
llvm-svn: 78395
2009-08-07 18:45:49 +00:00
Ryan Flynn f53fab87d8 PR3333: warn when shifting by invalid amount
llvm-svn: 78385
2009-08-07 16:20:20 +00:00
Douglas Gregor 766b0bbe61 Minor refactoring to introduce a new transformation function,
TransformStmt, into the tree transformer.

llvm-svn: 78347
2009-08-06 22:17:10 +00:00
John McCall 2c5206d22e Drop the friend-inner-class diagnostic from an extwarn to an ext and don't
guard its report on GNUMode.

llvm-svn: 78338
2009-08-06 21:21:21 +00:00
John McCall 93343b9466 Permit a class to friend its members in C++0x, without restriction.
Permit a class to friend its class members in C++ 98, as long as extensions
are enabled (and even when they aren't, only give an extwarn about it).

llvm-svn: 78332
2009-08-06 20:49:32 +00:00
Fariborz Jahanian 001309371e Set and use Elidable in elimination of copy ctors.
llvm-svn: 78331
2009-08-06 19:12:38 +00:00
Fariborz Jahanian 11a8e95a1a After reporting ill-formed copy constructor(12.8.p3)
don't recurs and crash.

llvm-svn: 78323
2009-08-06 17:22:51 +00:00
Douglas Gregor 15acfb9f50 When we encounter a dependent type that was parsed before we know that
we were going to enter into the scope of a class template or class
template partial specialization, rebuild that type so that it can
refer to members of the current instantiation, as in code like

  template<typename T>
  struct X {
    typedef T* pointer;
    pointer data();
  };

  template<typename T>
  typename X<T>::pointer X<T>::data() { ... }

Without rebuilding the return type of this out-of-line definition, the
canonical return type of the out-of-line definition (a TypenameType)
will not match the canonical return type of the declaration (the
canonical type of T*).

llvm-svn: 78316
2009-08-06 16:20:37 +00:00
Douglas Gregor 71dc50915a Implement transformation of template names within the generic tree
transform, then use the result for template instantiation. The generic
transformation fixes a few issues:

  - It copes better with template template parameters and member
  templates (when they're implemented). 
  - The logic used to replace template template parameters with their
  arguments is now centralized in TransformDecl, so that it will apply
  for other declaration-instantiation steps.
  - The error-recovery strategy is normalized now, so that any error
  results in a NULL TemplateName.

llvm-svn: 78292
2009-08-06 06:41:21 +00:00
Douglas Gregor 1135c35c7c Implement transformation of nested-name-specifiers within the general
tree transformation. Template instantiation uses this general
transformation rather than implementing its own transformation.

llvm-svn: 78286
2009-08-06 05:28:30 +00:00
Douglas Gregor d806156d54 Support nested-name-specifiers for C++ member access expressions, e.g.,
this->Base::foo

from James Porter!

llvm-svn: 78278
2009-08-06 03:17:00 +00:00
Ryan Flynn aa5e5fd2f4 add support for FreeBSD's format(printf0,x,y) attribute; allows null format string.
llvm-svn: 78276
2009-08-06 03:00:50 +00:00
John McCall 07e91c04ba First pass at friend semantics.
llvm-svn: 78274
2009-08-06 02:15:43 +00:00
Eli Friedman 44b83eea30 Get rid of "smart" quotes. Per report on cfe-dev.
llvm-svn: 78230
2009-08-05 19:21:58 +00:00
Fariborz Jahanian d460cb4356 Handle destruction of temporaries used in default argument
construction of constructor calls.

llvm-svn: 78222
2009-08-05 18:17:32 +00:00
Fariborz Jahanian aa890bf2f3 Patch to improve ir-gen for constructors with default argument
expressions and a test case.

llvm-svn: 78213
2009-08-05 17:03:54 +00:00
Douglas Gregor 2211d345d2 Introduce the canonical type smart pointers, and use them in a few places to
tighten up the static type system.

llvm-svn: 78164
2009-08-05 05:36:45 +00:00
Mike Stump 1a90e38471 Remove an unused header.
llvm-svn: 78140
2009-08-05 01:22:47 +00:00
Fariborz Jahanian 800f37262c Support for use of default argument in constructors.
work in progress.

llvm-svn: 78132
2009-08-05 00:26:10 +00:00
Douglas Gregor e922c77ddd Move the template instantiation logic for template arguments into the
general tree transformation. Also, implement template instantiation
for parameter packs.

In addition, introduce logic to enter the appropriate context for
subexpressions that are not potentially evaluated.

llvm-svn: 78114
2009-08-04 22:27:00 +00:00
Mike Stump 12b8ce168d Canonicalize else.
llvm-svn: 78102
2009-08-04 21:02:39 +00:00
Fariborz Jahanian b61af4c566 Some code refactoring. Be more generous in issuance of warning
on method type mismatches per Chris's comment.

llvm-svn: 78075
2009-08-04 17:01:09 +00:00
Douglas Gregor d6ff33294a Refactor template instantiation for types into a generic tree
transformation template (TreeTransform) that handles the
transformation and reconstruction of AST nodes. Template instantiation
for types is a (relatively small) customization of the generic tree
transformation.

llvm-svn: 78071
2009-08-04 16:50:30 +00:00
Fariborz Jahanian 10ff786e1e Compare matching selectors in current and
super class(s) and warn on any parameter
type mismatch if potentially unsafe. 

llvm-svn: 78029
2009-08-04 01:07:16 +00:00
Ted Kremenek fb50bf5a6f Per advice that Doug Gregor gave me several months ago, clean up the
implementation of '#pragma unused' by not constructing intermediate
DeclRefExprs, but instead do the name lookup directly.  The
implementation is greatly simplified.

Along the way, degrade '#pragma unused(undeclaredvariable)' to a
warning instead of being a hard error.  This implements:

<rdar://problem/6761874> [sema] allow #pragma unused to reference undefined variable (with warning)

llvm-svn: 78019
2009-08-03 23:24:57 +00:00
John McCall 49bfce4227 Refactor methods on DeclSpec to take a diagnostic& parameter, and reflect this
elsewhere.  Very slightly decouples DeclSpec users from knowing the exact
diagnostics to report, and makes it easier to provide different diagnostics in
some places.

llvm-svn: 77990
2009-08-03 20:12:06 +00:00
Fariborz Jahanian 6782844874 Minor renaming/refactoring. No change in functionality.
llvm-svn: 77985
2009-08-03 19:13:25 +00:00
Eli Friedman 76df43c08b Fix assertion crash. I don't have a testcase, but the fix is pretty
obviously correct.

llvm-svn: 77969
2009-08-03 09:07:06 +00:00
Douglas Gregor 55137cbc85 Produce a warning that partial ordering of function templates is not yet supported
llvm-svn: 77928
2009-08-02 23:46:29 +00:00
Douglas Gregor 9dc8bd327f Keep track of the template arguments deduced when matching a class
template partial specialization. Then, use those template arguments
when instantiating members of that class template partial
specialization. Fixes PR4607.

llvm-svn: 77925
2009-08-02 23:24:31 +00:00
Anders Carlsson 4ab4f7f416 Use the correct cast kind for dynamic_cast.
llvm-svn: 77905
2009-08-02 19:07:59 +00:00
Anders Carlsson 1682af5bac More warnings for unused expressions.
llvm-svn: 77763
2009-08-01 01:39:59 +00:00
Douglas Gregor b9a955dc1d Remove a redundant getCanonicalType call
llvm-svn: 77702
2009-07-31 18:32:42 +00:00
Ryan Flynn d963a49756 PR3679 - enable #pragma weak aliasing.
llvm-svn: 77660
2009-07-31 02:52:19 +00:00
John McCall 9bb74a5ef5 Rename Action::TagKind to Action::TagUseKind, which removes both a misnomer
and a name collision.

llvm-svn: 77658
2009-07-31 02:45:11 +00:00
Eli Friedman dfbd0c4b0d Make the check for the linkage of a template handle the case of nested
linkage specifications correctly.

llvm-svn: 77653
2009-07-31 01:43:05 +00:00
Anders Carlsson a076d14514 Add CK_DerivedToBase and use it PerformObjectMemberConversion.
llvm-svn: 77652
2009-07-31 01:23:52 +00:00
Anders Carlsson a26159261c Add a CastKind enum to CastExpr. Right now it's not used for much but it will be :)
llvm-svn: 77650
2009-07-31 00:48:10 +00:00
Anders Carlsson 5c5f160c7f Diagnose unused expression results for all statements, just not compound statements.
llvm-svn: 77631
2009-07-30 22:39:03 +00:00
Anders Carlsson 59a2ab9720 Factor code out into a DiagnoseUnusedExprResult function.
llvm-svn: 77628
2009-07-30 22:17:18 +00:00
Douglas Gregor 833834fcab What luck! Clang obtains support for refering to members of the
current instantiation when that current instantiation is a class
template partial specialization.

llvm-svn: 77609
2009-07-30 17:50:56 +00:00
Douglas Gregor 1530138fd0 Support out-of-line definitions of the members of class template
partial specializations.

llvm-svn: 77606
2009-07-30 17:40:51 +00:00
Ryan Flynn 7d470f3466 PR3679 - handle #pragma weak
llvm-svn: 77573
2009-07-30 03:15:39 +00:00
Ted Kremenek c23c7e6a51 Change uses of:
Type::getAsReferenceType() -> Type::getAs<ReferenceType>()
  Type::getAsRecordType() -> Type::getAs<RecordType>()
  Type::getAsPointerType() -> Type::getAs<PointerType>()
  Type::getAsBlockPointerType() -> Type::getAs<BlockPointerType>()
  Type::getAsLValueReferenceType() -> Type::getAs<LValueReferenceType>()
  Type::getAsRValueReferenceType() -> Type::getAs<RValueReferenceType>()
  Type::getAsMemberPointerType() -> Type::getAs<MemberPointerType>()
  Type::getAsReferenceType() -> Type::getAs<ReferenceType>()
  Type::getAsTagType() -> Type::getAs<TagType>()
  
And remove Type::getAsReferenceType(), etc.

This change is similar to one I made a couple weeks ago, but that was partly
reverted pending some additional design discussion. With Doug's pending smart
pointer changes for Types, it seemed natural to take this approach.

llvm-svn: 77510
2009-07-29 21:53:49 +00:00
Fariborz Jahanian 4b12ed115a Some refactoring of member access for
performace sake. Also added a test case.

llvm-svn: 77502
2009-07-29 20:41:46 +00:00
Eli Friedman 8e1433b370 Refactor base/member initializers, and construct them correctly in cases
with dependent types.  Fixes PR4621 and PR4627.

llvm-svn: 77498
2009-07-29 19:44:27 +00:00
Fariborz Jahanian 3f15083f73 Check accessibility when converting object to the base
class.

llvm-svn: 77497
2009-07-29 19:40:11 +00:00
Fariborz Jahanian bb67b827d9 Patch to provide cast of objects in member access
excpression, if needed, and remove some ir-gen code
now unnencessary.

llvm-svn: 77490
2009-07-29 18:40:24 +00:00
Douglas Gregor aa87ebc0c1 [llvm up]
A template name can refer to a set of overloaded function
templates. Model this in TemplateName, which can now refer to an
OverloadedFunctionDecl that contains function templates. This removes
an unspeakable hack in Sema::isTemplateName.

llvm-svn: 77488
2009-07-29 18:26:50 +00:00
Sebastian Redl 63c4da01c8 Check for identical types in C++ catch expression. Patch by Erik Verbruggen.
llvm-svn: 77475
2009-07-29 17:15:45 +00:00
Douglas Gregor b142c2d0a8 When lookup of an identifier preceding a '<' finds a set of overloaded
functions, only return those overloaded functions that are actually
function templates. Note that there is still a glaring problem with
treating an OverloadedFunctionDecl as a TemplateName.

llvm-svn: 77472
2009-07-29 16:56:42 +00:00
Douglas Gregor ab60c7f60b Remove an obsolete kludge based on the previous, completely broken handling of function templates
llvm-svn: 77464
2009-07-29 16:15:53 +00:00
Douglas Gregor 0004417e81 Use the new statement/expression profiling code to unique dependent
template arguments, as in template specialization types. This permits
matching out-of-line definitions of members for class templates that
involve non-type template parameters.

llvm-svn: 77462
2009-07-29 16:09:57 +00:00
Steve Naroff 85d9715c24 Fix <rdar://problem/7100524> regression: "error: incompatible operand types ('void *' and 'NSString *')".
Remove XFAIL from 'conditional-expr-4.m' test case (which would have caught this).
Also tweaked several aspects of the test to jive with the current type checking.

llvm-svn: 77453
2009-07-29 15:09:39 +00:00
Steve Naroff d390fd99d9 Incorporate feedback from Chris (on r76979).
llvm-svn: 77452
2009-07-29 14:06:03 +00:00
Sebastian Redl 955a067bdd Make functional-style casts emit correct messages, and fix a crash-on-invalid.
llvm-svn: 77451
2009-07-29 13:50:23 +00:00
Daniel Dunbar b9a68612e2 BlockScopeInfo::hasPrototype was uninitialized.
llvm-svn: 77421
2009-07-29 01:59:17 +00:00
Mike Stump 93246cc475 Some minor cleanups, thanks Chris.
llvm-svn: 77402
2009-07-28 23:57:15 +00:00
Mike Stump bce7a27d22 Add support for -Wmissing-noreturn.
llvm-svn: 77391
2009-07-28 23:11:12 +00:00
Douglas Gregor a8e02e7863 Refactor the code that produces a TemplateSpecializationType, so that
canonicalization for dependent TemplateSpecializationTypes occurs
within ASTContext::getTemplateSpecializationType. Also, move template
argument canonicalization into ASTContext::getCanonicalTemplateArgument.

llvm-svn: 77388
2009-07-28 23:00:59 +00:00
Mike Stump 3bf1ab48d3 Add noreturn support for blocks.
llvm-svn: 77377
2009-07-28 22:04:01 +00:00
John McCall 8945266f3d Bounds checking for address spaces.
llvm-svn: 77303
2009-07-28 06:52:18 +00:00
Mike Stump a4de80b8b1 Make longjmp a real builtin.
llvm-svn: 77291
2009-07-28 02:25:19 +00:00
John McCall caa1945306 Allow functions to be marked "implicit return zero" and so mark main().
Codegen by initializing the return value with its LLVM type's null value.

llvm-svn: 77288
2009-07-28 01:00:58 +00:00
Mike Stump 82a9e445b7 Make sure to move the comment with the code.
llvm-svn: 77279
2009-07-28 00:07:08 +00:00
Mike Stump 9e3b01f697 Add knowledge about _longjmp being noreturn.
llvm-svn: 77254
2009-07-27 21:45:16 +00:00
Mike Stump 9a9e0c2b17 Add builtin knowledge about longjmp being noreturn. Add printing for
the noreturn attribute.

llvm-svn: 77253
2009-07-27 21:33:40 +00:00
Mike Stump ca6c875e47 Add noreturn for exit.
llvm-svn: 77237
2009-07-27 19:14:18 +00:00
Argyrios Kyrtzidis 067c407c48 Make ObjCImplDecl inherit from ObjCContainerDecl.
ObjCContainerDecl now is the root class for objc decls that contain methods.

llvm-svn: 77235
2009-07-27 19:04:32 +00:00
Douglas Gregor d612997e73 When instantiating a variable without an initializer, call
ActOnUninitializedDecl.

llvm-svn: 77211
2009-07-27 17:43:39 +00:00
Ryan Flynn e5dc8594ea PR3575 - warn on declared variable or function attributes after a definition, which are currently ignored.
llvm-svn: 77095
2009-07-25 22:29:44 +00:00
Mike Stump 8c5d7996e8 Add noreturn as a type attribute, handle printing for them and handle
calls to noreturn function pointers when CFG building.

llvm-svn: 77089
2009-07-25 21:26:53 +00:00
Sebastian Redl 9f831dbbcd Implement C++ semantics for C-style and functional-style casts. This regresses Clang extension conversions, like vectors, but allows conversions via constructors and conversion operators.
Add custom conversions to static_cast.

llvm-svn: 77076
2009-07-25 15:41:38 +00:00
John McCall 02dee0a46a Semantic checking for main().
Fix some invalid main() methods in the test suite that were nicely
exposed by the new checks.

llvm-svn: 77047
2009-07-25 04:36:53 +00:00