Commit Graph

14780 Commits

Author SHA1 Message Date
Nate Begeman 5da51d38d7 Fix an issue with opencl init list checking.
llvm-svn: 107824
2010-07-07 22:26:56 +00:00
Douglas Gregor 2530efd3cf When printing statistics for the ASTContext, also print them for its BumpPtrAllocator
llvm-svn: 107790
2010-07-07 16:40:34 +00:00
Chris Lattner 3e2ee147d0 add driver support for minix, patch by Kees van Reeuwijk
from PR7583

llvm-svn: 107788
2010-07-07 16:01:42 +00:00
Argyrios Kyrtzidis ad65c6926b Fix broken reading of NestedNameSpecifiers from PCH.
llvm-svn: 107784
2010-07-07 15:46:30 +00:00
Argyrios Kyrtzidis 903ccd6121 Delay passing InterestingDecls to the Consumer until when we know we are not in recursive loading and the
declarations are fully initialized.

llvm-svn: 107783
2010-07-07 15:46:26 +00:00
Argyrios Kyrtzidis 54fcbc7345 getBody() -> hasBody()
llvm-svn: 107773
2010-07-07 12:24:18 +00:00
Argyrios Kyrtzidis 0b6a06a335 Simplify code and remove comment that is no longer relevant.
llvm-svn: 107772
2010-07-07 12:24:14 +00:00
Argyrios Kyrtzidis 568bc84562 Remove Decl::getCompoundBody().
This has 2 (slight) advantages:
-Make explicit at getBody()'s callsite that we expect/handle only CompoundStmt and not CXXTryStmt.
-Better tracking of Decl::getBody()'s callsites.

llvm-svn: 107771
2010-07-07 11:31:34 +00:00
Argyrios Kyrtzidis 6fbc8fa53e Simplify code. CompoundStmt's RBraceLoc can be found using its SourceRange too.
llvm-svn: 107770
2010-07-07 11:31:27 +00:00
Argyrios Kyrtzidis 46f556d4e5 Simplify code. FunctionDecl and ObjCMethodDecl have some common interfaces.
llvm-svn: 107769
2010-07-07 11:31:23 +00:00
Argyrios Kyrtzidis 36ea322579 Introduce Decl::hasBody() and FunctionDecl::hasBody() and use them instead of getBody() when we are just checking the existence of a body, to avoid de-serialization of the body from PCH.
Makes de-serialization of the function body even more "lazier".

llvm-svn: 107768
2010-07-07 11:31:19 +00:00
Jordy Rose 65136fb669 Add memcmp() and bcmp() to CStringChecker. These check for valid access to the buffer arguments and have a special-case for when the buffer arguments are known to be the same address, or when the size is zero.
llvm-svn: 107761
2010-07-07 08:15:01 +00:00
Jordy Rose 33c829a6fd Cleanup on CStringChecker and its associated tests. Also check for null arguments...which are allowed if the access length is 0!
llvm-svn: 107759
2010-07-07 07:48:06 +00:00
John McCall b609d3f5f9 Teach function-try-blocks on constructors and destructors to implicitly
rethrow.  Fixes rdar://problem/7696603

llvm-svn: 107757
2010-07-07 06:56:46 +00:00
Chris Lattner 3956106543 implement PR7569, warning about assignment to null, which
people seem to write when they want a deterministic trap.
Suggest instead that they use a volatile pointer or 
__builtin_trap.

llvm-svn: 107756
2010-07-07 06:14:23 +00:00
John McCall 11086fcb65 Don't consider casted non-global pointers to be evaluatable.
Fixes rdar://problem/8154689

llvm-svn: 107755
2010-07-07 05:08:32 +00:00
Tom Care ca1f871ff8 Change explicit handling of impossible condition to call llvm_unreachable in IdempotentOperationChecker::PreVisitBinaryOperator.
llvm-svn: 107748
2010-07-07 01:27:17 +00:00
Chandler Carruth 509a9ce9da Silence an annoying GCC warning about use of an uninitialized variable. Even
making the other switch case unreachable, or sinking the 'continue' into it
doesn't silence this.

llvm-svn: 107745
2010-07-07 00:36:56 +00:00
Chandler Carruth dce439d11d Use 'llvm_unreachable' to mark impossible code paths so that GCC doesn't
consider them for warnings.

llvm-svn: 107741
2010-07-07 00:07:37 +00:00
John McCall 09ae03299a Provide a hook for the benefit of clients using clang IR gen as a subroutine:
emit metadata associating allocas and global values with a Decl*.  This feature
is controlled by an option that (intentionally) cannot be enabled on the command
line.

To use this feature, simply set
  CodeGenOptions.EmitDeclMetadata = true;
and then interpret the completely underspecified metadata. :)

llvm-svn: 107739
2010-07-06 23:57:41 +00:00
Ted Kremenek da534381f8 Fix casts in RegionStore to not always assume that bindings are only to SubRegions. Fixes assertion failure
reported in PR 7572.

llvm-svn: 107738
2010-07-06 23:53:29 +00:00
Ted Kremenek 0fc6354f2f Implement dumpToStream() for NonStaticGlobalSpaceRegion and StaticGlobalSpaceRegion.
llvm-svn: 107731
2010-07-06 23:37:21 +00:00
Jordy Rose cf781e5430 Add comment noting VLASizeChecker's duty in defining a VLA's extent.
llvm-svn: 107728
2010-07-06 23:33:54 +00:00
Jordy Rose 134a236a14 Add a new path-sensitive checker for functions in <string.h>, for both null-terminated strings and memory blocks. Currently only checks memcpy(), memmove(), and bcopy(), but this is intended to be expanded soon.
llvm-svn: 107722
2010-07-06 23:11:01 +00:00
Ted Kremenek 128bfb7643 Sort CMake file.
llvm-svn: 107709
2010-07-06 22:03:19 +00:00
Tom Care 3ff08a8e76 Added a path-sensitive idempotent operation checker (-analyzer-idempotent-operation). Finds idempotent and/or tautological operations in a path sensitive context, flagging operations that have no effect or a predictable effect.
Example:
{
int a = 1;
int b = 5;
int c = b / a; // a is 1 on all paths
}

- New IdempotentOperationChecker class
- Moved recursive Stmt functions in r107675 to IdempotentOperationChecker
- Minor refactoring of SVal to allow checking for any integer
- Added command line option for check
- Added basic test cases

llvm-svn: 107706
2010-07-06 21:43:29 +00:00
Nick Lewycky c96c37f6fd Fix multiple emission of the this-> fixit for each instantiation by fixing the
AST during the instantiation. Fixes PR7417!

llvm-svn: 107690
2010-07-06 19:51:49 +00:00
John McCall 189223e222 Make CGBuilderTy a typedef again; its functionality has been rolled back
into IRBuilder.

llvm-svn: 107687
2010-07-06 18:43:48 +00:00
Douglas Gregor ec9c6ae1cb Improve the accuracy of getSourceRange() for DeclaratorDecl and
TagDecl subclasses when out-of-line template declaration information
is available, from Peter Collingbourne!

llvm-svn: 107686
2010-07-06 18:42:40 +00:00
Douglas Gregor d890b734f8 Correctly set the location of the "template" keyword for a class
template specialization, from Peter Collingbourne.

llvm-svn: 107682
2010-07-06 18:33:12 +00:00
Douglas Gregor 6191f6c607 Remove my egregious hack that forced deserialization of visible
declarations when implicitly declaring the default constructor, copy
constructor, destructor, and copy-assignment operators of a
class. Argiris fixed the underlying problem in r107596.

llvm-svn: 107681
2010-07-06 18:29:01 +00:00
Duncan Sands 1614396b15 Pacify versions of gcc that think these variables may be used
uninitialized (which doesn't seem to be the case), by giving
them arbitrary initial values.

llvm-svn: 107679
2010-07-06 18:19:40 +00:00
John McCall 2d605ac1f5 When destroying a cleanup, kill any references to instructions in the entry
block before deleting it.  Fixes PR7575.

This really just a short-term fix before implementing lazy cleanups.

llvm-svn: 107676
2010-07-06 17:35:03 +00:00
Tom Care 4626285dba Added several helper functions to Stmt to recursively check for different elements (macros, enum constants, etc).
llvm-svn: 107675
2010-07-06 17:28:49 +00:00
Argyrios Kyrtzidis 39fdf81b43 Read/write function template specializations for PCH, properly this time.
llvm-svn: 107665
2010-07-06 15:37:09 +00:00
Argyrios Kyrtzidis af2eac2869 Add to PCH missing Sema information about VTable uses and dynamic classes.
llvm-svn: 107664
2010-07-06 15:37:04 +00:00
Argyrios Kyrtzidis 181431cd91 Allow a CXXRecordDecl to get a DefinitionData pointer even when its owner is still initializing.
llvm-svn: 107663
2010-07-06 15:36:58 +00:00
Argyrios Kyrtzidis 282b36b7f6 Read/write instantiated-from-member of EnumDecl for PCH.
llvm-svn: 107662
2010-07-06 15:36:48 +00:00
Zhongxing Xu 5b488b1e6c Add an assertion.
llvm-svn: 107645
2010-07-06 07:08:47 +00:00
Zhongxing Xu b525bce698 Collect function definitions in the Indexer when indexing through the ASTs.
Add an API to get an Entity associated with a name in the global namespace.

llvm-svn: 107642
2010-07-06 05:55:13 +00:00
John McCall 466e221037 When creating functions to run global initializers and destructors, mark them
as nounwind in -fno-exceptions.  Fixes rdar://problem/8090834.

llvm-svn: 107639
2010-07-06 04:38:10 +00:00
Jordy Rose c7c8c3d66b Remove the now-unused GRState::isEqual method. Instead of asking if an expression equals a certain value, use SValuator::EvalEQ and GRState::Assume to see if it can, must, or must not equal that value.
llvm-svn: 107638
2010-07-06 04:12:24 +00:00
Jordy Rose 40c5c24c06 Improve NULL-checking for CFRetain/CFRelease. We now remember that the argument was non-NULL, and we report where the null assumption came from (like AttrNonNullChecker already did).
llvm-svn: 107633
2010-07-06 02:34:42 +00:00
John McCall bd30929e4d Validated by nightly-test runs on x86 and x86-64 darwin, including after
self-host.  Hopefully these results hold up on different platforms.  

I tried to keep the GNU ObjC runtime happy, but it's hard for me to test.
Reimplement how clang generates IR for exceptions.  Instead of creating new
invoke destinations which sequentially chain to the previous destination,
push a more semantic representation of *why* we need the cleanup/catch/filter
behavior, then collect that information into a single landing pad upon request.

Also reorganizes how normal cleanups (i.e. cleanups triggered by non-exceptional
control flow) are generated, since it's actually fairly closely tied in with
the former.  Remove the need to track which cleanup scope a block is associated
with.

Document a lot of previously poorly-understood (by me, at least) behavior.

The new framework implements the Horrible Hack (tm), which requires every
landing pad to have a catch-all so that inlining will work.  Clang no longer
requires the Horrible Hack just to make exceptions flow correctly within
a function, however.  The HH is an unfortunate requirement of LLVM's EH IR.

llvm-svn: 107631
2010-07-06 01:34:17 +00:00
Zhongxing Xu f894cfb44f Local variables have no linkage, make invalid Entities.
llvm-svn: 107630
2010-07-06 01:20:49 +00:00
Chris Lattner ceddafb846 Generate fewer first class aggregate values for other
coerce cases (e.g. {double,int}) which avoids fastisel
bailing out at -O0.

llvm-svn: 107628
2010-07-05 20:41:41 +00:00
Chris Lattner c401de9998 in the "coerce" case, the ABI handling code ends up making the
alloca for an argument.  Make sure the argument gets the proper
decl alignment, which may be different than the type alignment.

This fixes PR7567

llvm-svn: 107627
2010-07-05 20:21:00 +00:00
Chris Lattner 93b2836267 fix a bug I introduced in r107624
llvm-svn: 107626
2010-07-05 19:36:34 +00:00
Chris Lattner 9156f1bdd3 rearrange some logic, no functionality change.
llvm-svn: 107624
2010-07-05 19:17:26 +00:00
Chris Lattner 53b479ff6a fix PR7564 a cast where the bitfield struct init code
wasn't handling array padding elements right.

llvm-svn: 107621
2010-07-05 18:03:30 +00:00
Chris Lattner 9a3459f1a6 AppendBitField really can never fail, so return its return value.
Everyone knows that no bugs are ever possible with bitfields.

llvm-svn: 107620
2010-07-05 17:04:23 +00:00
Argyrios Kyrtzidis a95d019150 Read/write the identifier namespace in PCH for decls that may modify it.
We can now use a PCH'ed <map>.

llvm-svn: 107617
2010-07-05 10:38:01 +00:00
Argyrios Kyrtzidis 927d8e06c1 Read/write some source location for PCH.
llvm-svn: 107616
2010-07-05 10:37:55 +00:00
Jordy Rose 0704a7fe43 Support sizeof for VLA expressions (sizeof(someVLA)). sizeof(int[n]) still unimplemented. A VLA region's sizeof value matches its extent.
llvm-svn: 107611
2010-07-05 04:42:43 +00:00
Zhongxing Xu 1bbbc2e509 Refrase comments.
llvm-svn: 107607
2010-07-05 02:36:16 +00:00
Zhongxing Xu 74458782cc Although in C++ class name has external linkage, usually the definition of the
class is available in the same translation unit when it's needed. So we make 
all of them invalid Entity.

llvm-svn: 107606
2010-07-05 02:35:40 +00:00
Zhongxing Xu 57012ee70d Make FieldDecl an invalid Entity since it has no linkage.
llvm-svn: 107605
2010-07-05 02:31:16 +00:00
Zhongxing Xu 5776d439ca Indexer: make FieldDecl an internal Entity.
llvm-svn: 107604
2010-07-05 01:44:14 +00:00
Jordy Rose e6b999bf9a Track extents for VLAs.
llvm-svn: 107603
2010-07-05 00:50:15 +00:00
Argyrios Kyrtzidis b5fcdc21c2 Fix a regression of a previous commit of mine (rdar://8158953).
Some of the invariant checks for creating Record/Enum types don't hold true during PCH reading.
Introduce more suitable ASTContext::getRecordType() and getEnumType().

llvm-svn: 107598
2010-07-04 21:44:47 +00:00
Argyrios Kyrtzidis 6685e8a747 Read/write more information of ASTContext for PCH. Overriden methods and instantiated-from information.
llvm-svn: 107597
2010-07-04 21:44:35 +00:00
Argyrios Kyrtzidis e51e554a82 When adding a visible decl, deserialize the visible decls and add it.
Before this commit, visible decls added before deserialization were ignored.
This was not an issue since name lookup (that usually comes before the addition) forces deserialization
but it is an issue for lazily declared class implicit members.

We can use a PCH'ed <string> now.

llvm-svn: 107596
2010-07-04 21:44:25 +00:00
Argyrios Kyrtzidis e862cbc5f6 Don't try to install the __[u]int128_t identifier if it is already installed by PCHReader.
Currently, adding it to visible decls of a PCH'ed translation unit has no effect because
adding visible decls before deserialization has no effect (the decls won't be visible).
This will be fixed in a future commit; then it will force deserialization of visible decls, so avoid pointlessly installing it.

llvm-svn: 107595
2010-07-04 21:44:19 +00:00
Argyrios Kyrtzidis ccde6a02c8 Write/read ParmVarDecl's UninstantiatedDefaultArg for PCH.
llvm-svn: 107594
2010-07-04 21:44:07 +00:00
Argyrios Kyrtzidis cdb8b3f7ec Read/write specialization info of static data members for PCH.
llvm-svn: 107593
2010-07-04 21:44:00 +00:00
Jordy Rose 674bd55f02 Add a new symbol type, SymbolExtent, to represent the extents of memory regions that may not be known at compile-time (such as those created by malloc). This replaces the old setExtent/getExtent API on Store, which used the GRState's GDM to store SVals.
Also adds a getKnownValue() method to SValuator, which gets the integer value of an SVal if it is known to only have one possible value. There are more places in the code that could be using this, but in general we want to be dealing entirely in SVals, so its usefulness is limited.

The only visible functionality change is that extents are now honored for any DeclRegion, such as fields and Objective-C ivars, rather than just variables. This shows up in bounds-checking and cast-size-checking.

llvm-svn: 107577
2010-07-04 00:00:41 +00:00
John McCall 1e5d75d73f Mark the operator delete associated with a virtual destructor as referenced.
llvm-svn: 107573
2010-07-03 18:33:00 +00:00
Charles Davis 3babfba597 Mangle Objective-C pointers and block pointers in the Microsoft C++ Mangler.
ObjC pointers were easy enough (as far as the ABI is concerned, they're
just pointers to structs), but I had to invent a new mangling for block
pointers. This is particularly worrying with the Microsoft ABI, because
it is a vendor-specific ABI; extending it could come back to bite us
later when MS extends it on their own (and you know they will).

llvm-svn: 107572
2010-07-03 16:56:59 +00:00
John McCall 1180f8e90f Provide convenience routines to save and restore the current insertion
point.

llvm-svn: 107570
2010-07-03 09:25:20 +00:00
Charles Davis 3b10dd1bec Fix mangling of array dimensions in the Microsoft C++ Mangler.
llvm-svn: 107568
2010-07-03 08:15:16 +00:00
Charles Davis d49950a317 Mangle member pointer types in the Microsoft C++ Mangler.
llvm-svn: 107567
2010-07-03 08:01:32 +00:00
Argyrios Kyrtzidis dae2a1607e When setting the anonymous namespace at PCH reading, it may still be initializing so avoid
the invariant checks at NamespaceDecl::setAnonymousNamespace().

llvm-svn: 107566
2010-07-03 07:57:53 +00:00
Charles Davis 0029a2a957 Fix mangling of function pointers in the Microsoft C++ Mangler.
llvm-svn: 107564
2010-07-03 05:53:41 +00:00
Charles Davis 77552766d9 Fix mangling of array parameters for functions in the Microsoft C++ Mangler.
Only actual functions get mangled correctly; I don't know how to fix it for
function pointers yet. Thanks to John McCall for the hint.

Also, mangle anonymous tag types. I don't have a suitable testcase yet; I have
a feeling that that's going to need support for static locals, and I haven't
figured out exactly how MSVC's scheme for mangling those works.

llvm-svn: 107561
2010-07-03 02:41:45 +00:00
Douglas Gregor 9672f92f7f Lazily declare default constructors. We now delay the construction of
declarations for implicit default constructors, copy constructors,
copy assignment operators, and destructors. On a "simple" translation
unit that includes a bunch of C++ standard library headers, we
generate relatively few of these implicit declarations now:

  4/159 implicit default constructors created
  18/236 implicit copy constructors created
  70/241 implicit copy assignment operators created
  0/173 implicit destructors created

And, on this translation unit, this optimization doesn't really
provide any benefit. I'll do some more performance measurements soon,
but this completes the implementation work for <rdar://problem/8151045>.

llvm-svn: 107551
2010-07-03 00:47:00 +00:00
Douglas Gregor a6d695057c Lazily declare implicit copy constructors.
llvm-svn: 107543
2010-07-02 23:41:54 +00:00
Argyrios Kyrtzidis 3701fcd759 Read/write CastExpr's CXXBaseSpecifierArray for PCH.
llvm-svn: 107542
2010-07-02 23:30:27 +00:00
Argyrios Kyrtzidis 4259ebcdac Fix broken PCH support for CXXDefaultArgExpr.
llvm-svn: 107541
2010-07-02 23:30:15 +00:00
Douglas Gregor 52b7282081 Introduce a new routine, LookupConstructors(), and use it for all
constructor-name lookup.

llvm-svn: 107536
2010-07-02 23:12:18 +00:00
Douglas Gregor 330b9cff74 Lazily declare copy-assignment operators.
llvm-svn: 107521
2010-07-02 21:50:04 +00:00
Douglas Gregor 7454c563f1 Lazily declare the implicitly-declared destructor in a C++ class.
llvm-svn: 107510
2010-07-02 20:37:36 +00:00
Douglas Gregor 0be31a2eb7 Move the "current scope" state from the Parser into Action. This
allows Sema some limited access to the current scope, which we only
use in one way: when Sema is performing some kind of declaration that
is not directly driven by the parser (e.g., due to template
instantiatio or lazy declaration of a member), we can find the Scope
associated with a DeclContext, if that DeclContext is still in the
process of being parsed. 

Use this to make the implicit declaration of special member functions
in a C++ class more "scope-less", rather than using the NULL Scope hack.

llvm-svn: 107491
2010-07-02 17:43:08 +00:00
Argyrios Kyrtzidis 335751610e Handle CXXConstructorDecl, CXXDestructorDecl, and CXXConversionDecl for PCH.
<vector> header can be used correctly through PCH now.

llvm-svn: 107483
2010-07-02 15:58:43 +00:00
Argyrios Kyrtzidis a45855fc2a Disable Decl::CheckAccessDeclContext() temporarily.
llvm-svn: 107478
2010-07-02 11:55:44 +00:00
Argyrios Kyrtzidis 373a83abdc Fix reading FunctionDecls from PCH.
llvm-svn: 107477
2010-07-02 11:55:40 +00:00
Argyrios Kyrtzidis e23371e71d Fix reading ClassTemplateDecl's ClassTemplateSpecializationDecls and ClassTemplatePartialSpecializationDecls.
Store/read also their template arguments because they may be initializing and not be able to provide them.

llvm-svn: 107476
2010-07-02 11:55:37 +00:00
Argyrios Kyrtzidis 2c2167ac3d Fully read/write CXXRecordDecl for PCH.
llvm-svn: 107475
2010-07-02 11:55:32 +00:00
Argyrios Kyrtzidis e929095f4a Fix reading of DependentNameType.
llvm-svn: 107474
2010-07-02 11:55:24 +00:00
Argyrios Kyrtzidis dab33c5d33 Allow reading of InjectedClassNameType from PCH even when its decl is currently initializing.
llvm-svn: 107473
2010-07-02 11:55:20 +00:00
Argyrios Kyrtzidis ee776bcb7a Fix broken reading of member pointer from PCH.
llvm-svn: 107472
2010-07-02 11:55:15 +00:00
Argyrios Kyrtzidis 45a83f9acc - Allow a typedef type to be read from PCH even if its decl is currently initializing.
- Fix creation of TemplateSpecializationType.

llvm-svn: 107471
2010-07-02 11:55:11 +00:00
Argyrios Kyrtzidis e3029a7e7b Fix broken reading of "#lines" from PCH.
llvm-svn: 107470
2010-07-02 11:55:05 +00:00
Argyrios Kyrtzidis 318b0e78c6 Generally types expect an initialized TypeDecl; its safer and less complicated to delay PCH reading the type of a TypeDecl.
llvm-svn: 107469
2010-07-02 11:55:01 +00:00
Argyrios Kyrtzidis 39f0e308c4 Add some side-effect free Create methods for TypeDecl subclasses and use them for PCH reading.
llvm-svn: 107468
2010-07-02 11:54:55 +00:00
Zhongxing Xu a74c22daec Change CallGraph::Prog to be a reference. idx::Program means to be a global object to the Index library.
llvm-svn: 107461
2010-07-02 06:39:46 +00:00
Douglas Gregor e71eddac59 Add a new routine Sema::LookupDestructor and make all destructor-lookup calls use that routine
llvm-svn: 107444
2010-07-01 22:47:18 +00:00
Douglas Gregor 6d880b1a83 Provide exception specifications for implicitly-declared default constructors.
llvm-svn: 107437
2010-07-01 22:31:05 +00:00
Douglas Gregor 4e8b5fb1eb Move the implicit declaration of a default constructor into a separate
routine; no functionality change.

llvm-svn: 107434
2010-07-01 22:02:46 +00:00
Douglas Gregor 8453ddb5fe Provide exception specifications for implicitly-declared copy constructors.
llvm-svn: 107429
2010-07-01 20:59:04 +00:00
Ted Kremenek bd862711fd Fix PR 7475 by enhancing the static analyzer to also invalidate bindings for non-static global variables
when calling a function/method whose impact on global variables we cannot accurately estimate.
This change introduces two new MemSpaceRegions that divide up the memory space of globals, and causes
RegionStore and BasicStore to consult a binding to the NonStaticGlobalsMemSpaceRegion when lazily
determining the value of a global.

llvm-svn: 107423
2010-07-01 20:16:50 +00:00
Jordy Rose f7488ec6dc Add an ivar to SymbolReaper for the current statement, and then stop passing the current statement around everywhere. Preparation for symbolic extents.
llvm-svn: 107422
2010-07-01 20:09:55 +00:00
Douglas Gregor f120304cc4 Move the implicit declaration of a constructor out to a separate
method. No functionality change.

llvm-svn: 107415
2010-07-01 19:09:28 +00:00
Douglas Gregor cfe682274c Teach DeclareImplicitCopyConstructor how to cope with virtual bases
and multi-dimensional array fields. Fixes several bugs found by
inspection.

llvm-svn: 107411
2010-07-01 18:27:03 +00:00
Douglas Gregor 54be33925a Move declaration of a class's implicit copy constructor into a
separate function. Aside from making the loops infinitely faster, no
functionality change.

llvm-svn: 107407
2010-07-01 17:57:27 +00:00
Douglas Gregor 68e1136585 Provide an exception-specification for an implicitly-declared
copy-assignment operator.

llvm-svn: 107406
2010-07-01 17:48:08 +00:00
Douglas Gregor f56ab7b6be Move the implicit declaration of a class's copy-assignment operator
into a separate routine. No functionality change.

llvm-svn: 107402
2010-07-01 16:36:15 +00:00
Douglas Gregor 3311ed4f0e Make loops infinitely faster. No functionality change.
llvm-svn: 107398
2010-07-01 15:29:53 +00:00
Douglas Gregor bac7490ffc Remove unnecessary ASTContext parameter from
CXXRecordDecl::getDestructor(); no functionality change.

llvm-svn: 107394
2010-07-01 14:13:13 +00:00
Zhongxing Xu bf81ed1fcf ExplodedGraph never uses ASTContext, remove it.
llvm-svn: 107388
2010-07-01 07:10:59 +00:00
Chris Lattner 0e7929f30c fix rdar://8147692 - yet another crash due to my abi work.
llvm-svn: 107387
2010-07-01 06:20:47 +00:00
Douglas Gregor 957551609c Reinstate fix for PR7526, which was failing because, now that we
aren't dropping all exception specifications on destructors, the
exception specifications on implicitly-declared destructors were
detected as being wrong (which they were). 

Introduce logic to provide a proper exception-specification for
implicitly-declared destructors. This also fixes PR6972.

Note that the other implicitly-declared special member functions also
need to get exception-specifications. I'll deal with that in a
subsequent commit.

llvm-svn: 107385
2010-07-01 05:10:53 +00:00
Douglas Gregor 7c42659cee When performing copy initialization via user-defined conversions,
don't allow two user-defined conversions. Fixes PR6595 (again).

llvm-svn: 107379
2010-07-01 03:43:00 +00:00
Douglas Gregor 3671ad4571 Revert r107374, which broke bootstrap.
llvm-svn: 107378
2010-07-01 03:28:42 +00:00
Douglas Gregor c6e4c68371 When building the type of a destructor, make sure to keep the
exception specification. Fixes PR7526.

llvm-svn: 107374
2010-07-01 02:33:15 +00:00
Douglas Gregor fb0c0d37b7 Extend the "cannot convert from base class pointer to derived class
pointer" diagnostic to handle references, too.

llvm-svn: 107372
2010-07-01 02:14:45 +00:00
Daniel Dunbar bb7ac52e02 Driver/IRgen: Add support for -momit-leaf-frame-pointer.
llvm-svn: 107367
2010-07-01 01:31:45 +00:00
Douglas Gregor 5a5fcd83c5 Be a bit more careful with undefined CXXRecordDecls. Fixes
rdar://problem/8124080 and PR7118.

llvm-svn: 107358
2010-07-01 00:21:21 +00:00
Daniel Dunbar 3de064dfdf Revert "IRgen: Make sure any prolog instructions get debug info.", the lexical
scope hasn't been set up yet so this isn't valid. It was just a cleanup to the
IR, so I'm going to ignore it for now.

llvm-svn: 107356
2010-07-01 00:16:31 +00:00
Douglas Gregor dc13ded606 Implement C++ DR481, which clarifies that the scope of template
parameters starts at the end of the template-parameter rather than at
the point where the template parameter name is encounted. For example,
given:

  typedef unsigned char T;
  template<typename T = T> struct X0 { };

The "T" in the default argument refers to the typedef of "unsigned
char", rather than referring to the newly-introduced template type
parameter 'T'. 

Addresses <rdar://problem/8122812>.

llvm-svn: 107354
2010-07-01 00:00:45 +00:00
Daniel Dunbar 9dcde4bdec Driver/Darwin: Add one -L for the DarwinClang toolchain to point into the gcc
library directory, as we still rely on a few libraries that are hiding there (in
particular libstdc++.dylib).

llvm-svn: 107353
2010-06-30 23:56:13 +00:00
Douglas Gregor 56f2e34a6a Improve diagnostic when we fail to pick an overload because it would
require a base-to-derived pointer conversion.

llvm-svn: 107349
2010-06-30 23:01:39 +00:00
John Thompson 781ad17ba9 Fix vector literal/cast confusion - bug 6895.
llvm-svn: 107347
2010-06-30 22:55:51 +00:00
Daniel Dunbar 8d65fc86c4 Move lib/Runtime to runtime/, and build after everything else.
llvm-svn: 107327
2010-06-30 22:10:38 +00:00
Daniel Dunbar 6696e22cc9 IRgen: Fix debug info regression in r106970; when we eliminate the return value
store make sure to move the debug metadata from the store (which is actual
'return' statement location) to the return instruction (which otherwise would
have the function end location as its debug info).
 - Tested by gdb test suite.

llvm-svn: 107322
2010-06-30 21:27:58 +00:00
Daniel Dunbar d7ac9a375a IRgen: Make sure any prolog instructions get debug info.
llvm-svn: 107320
2010-06-30 21:27:56 +00:00
Daniel Dunbar 8ab6c54ce2 Rewriter: Use the appropriate printing context instead of the default
constructed one -- this is necessary to ensure types get printed correctly.

llvm-svn: 107312
2010-06-30 19:16:53 +00:00
Daniel Dunbar 219fa69f91 AST: Propogate printing policy to types in a bunch more places.
llvm-svn: 107311
2010-06-30 19:16:48 +00:00
Chris Lattner 5c740f1523 Reapply:
r107173, "fix PR7519: after thrashing around and remembering how all this stuff"
r107216, "fix PR7523, which was caused by the ABI code calling ConvertType instead"

This includes a fix to make ConvertTypeForMem handle the "recursive" case, and call
it as such when lowering function types which have an indirect result.

llvm-svn: 107310
2010-06-30 19:14:05 +00:00
Fariborz Jahanian 02995320e9 Use isFunctionOrMethod for vars declared locallly
in method/blocks to decide not to mangle them.

llvm-svn: 107309
2010-06-30 18:57:21 +00:00
Eric Christopher aba9fb217e Add a return to silence a warning. Alternately a default: return false
would work.

Sebastian: figure out which one you want :)
llvm-svn: 107305
2010-06-30 18:36:32 +00:00
Fariborz Jahanian 0f19afb9d4 extern variable declared locally to objective-c++ method
should not be mangled either. Fixes radar 8016412.

llvm-svn: 107303
2010-06-30 18:27:47 +00:00
Sebastian Redl d92badfd9c Make both old and new versions of reference binding use the new classification functions, and updated them for N3092.
llvm-svn: 107301
2010-06-30 18:13:39 +00:00
Douglas Gregor 2187266120 Complain about the application of a transparent_union attribute to a
union whose first field has integral vector type. Also, clean up this
diagnostic a bit. Thanks to Eli for spotting this change in semantics
last week.

llvm-svn: 107296
2010-06-30 17:24:13 +00:00
Chris Lattner 749b8ed5af reduce nesting.
llvm-svn: 107292
2010-06-30 16:58:07 +00:00
Sebastian Redl d559a545d4 Fix a comment typo.
llvm-svn: 107290
2010-06-30 16:41:54 +00:00
Fariborz Jahanian e33c116bdf Nasty rewriter bug which turns out to have an easy fix in
rewriting a c-style cast expression in statement printer.
Fixes radar 8143056.

llvm-svn: 107289
2010-06-30 16:31:08 +00:00
Argyrios Kyrtzidis 639ffb0c07 Fix rdar://8139785 "implement warning on dead expression in comma operator"
As a bonus, fix the warning for || and && operators; it was emitted even if one of the operands had side effects, e.g:

x || test_logical_foo1();

emitted a bogus "expression result unused" for 'x'.

llvm-svn: 107274
2010-06-30 10:53:14 +00:00
Argyrios Kyrtzidis bd8ac8cf07 Fix PCH support for UnresolvedUsingTypenameDecl and UnresolvedUsingValueDecl.
llvm-svn: 107268
2010-06-30 08:49:30 +00:00
Argyrios Kyrtzidis 4a57bd0d62 Support DependentSizedArrayType for PCH.
llvm-svn: 107267
2010-06-30 08:49:25 +00:00
Argyrios Kyrtzidis f9f47c8e54 Support ParenListExpr for PCH.
llvm-svn: 107266
2010-06-30 08:49:18 +00:00
Charles Davis 2a47730767 Mangle arrays in the Microsoft C++ Mangler. It's not quite finished (it
doesn't mangle array parameters right), but I think that should be fixed
in Sema (Doug, John, what do you think?).

Also, stub out the remaining mangleType() routines.

llvm-svn: 107264
2010-06-30 08:09:57 +00:00
Ted Kremenek 169e43c4cf Correctly implement the CheckerVisit optimization introduced in r106884, but this time actually used the cached checker list when calling back to Checker visit methods. This reduces the analysis time for sqlite3.c by 8%.
llvm-svn: 107259
2010-06-30 07:28:52 +00:00
Daniel Dunbar 120a1e9d0f Headers: Define __INT64_TYPE__ in terms of getInt64Type(), which isn't always
'long'. The practical upshot is so that the uint64_t we define in our stdint.h
ends up being compatible with that defined by gcc (at least on Darwin), which
otherwise could lead to type incompatibilities with other system headers.

llvm-svn: 107255
2010-06-30 06:30:56 +00:00
Daniel Dunbar 540e8b1dcd Headers: Change [u]intmax_t to be defined in terms of __[U]INTMAX_TYPE__, instead of intN_t.
llvm-svn: 107254
2010-06-30 06:30:50 +00:00
Chandler Carruth 139e96216a Reapply r107235, this time with both my typo fixed, and a logical bug fixed.
Previously we relied on the presence of a member which needs no initialization
to prevent us from creating an additional initialization of the outer anonymous
union field. We have already correctly marked that field as initialized by the
member of the union (repeatedly due to the original bug this patch fixes) so we
simply need to bail out.

llvm-svn: 107242
2010-06-30 02:59:29 +00:00
Chandler Carruth 0e783c2e86 Revert r107235, it had a silly typo in it, and fixing the typo breaks something
else. Get the build bots happy while I debug. Very sorry for the delay fixing
this...

llvm-svn: 107239
2010-06-30 02:06:16 +00:00
Jordy Rose dc48471861 Pointers casted as integers still count as locations to SimpleSValuator, so don't crash if we do a funny thing like ((int)ptr)&1. Fixes PR7527.
llvm-svn: 107236
2010-06-30 01:35:20 +00:00
Chandler Carruth abb04f730e Fix PR7402: We were creating implicit member initializers for every field in an
anonymous union under the presumption that they didn't do anything. While this
is true, our checks for redundant initialization of an anonymous union still
fire when these overlap with explicit user initialization. A cleaner approach
is to avoid initializing multiple members of a union altogether, but this still
is in a rather fuzzy are especially when C++0x allows non-POD types into
unions.

llvm-svn: 107235
2010-06-30 00:54:29 +00:00
Daniel Dunbar e422266926 Revert r107173, "fix PR7519: after thrashing around and remembering how all this stuff", it broke bootstrap.
llvm-svn: 107232
2010-06-30 00:22:35 +00:00
Daniel Dunbar 8386469d7d Revert r107216, "fix PR7523, which was caused by the ABI code calling ConvertType instead", it is part of a boostrap breaking sequence.
llvm-svn: 107231
2010-06-30 00:22:30 +00:00
Douglas Gregor 4799d03ce8 Implement C++ DR299, which allows an implicit conversion from a class
type to an integral or enumeration type in the size of an array new
expression, e.g.,

  new int[ConvertibleToInt(10)];

This is a GNU and C++0x extension.

llvm-svn: 107229
2010-06-30 00:20:43 +00:00
Chandler Carruth 9c9286b531 Retain the source location of the constructor when building an implicit member
initialization. I tried several ideas but couldn't come up with a test case for
this that didn't rely on a Clang bug to report a diagnostic after template
instantiation of the constructor due to the implicit initializers. Suggestions
welcome. This fixes the source location aspect of PR7402.

llvm-svn: 107226
2010-06-29 23:50:44 +00:00
Douglas Gregor 5823da3ab0 Re-improve recovery when the condition of a switch statement does not
have integral or enumeration type, so that we still check the contents
of the switch body. My previous patch made this worse; now we're back
to where we were previously.

llvm-svn: 107223
2010-06-29 23:25:20 +00:00
Douglas Gregor f4ea725d38 Factor the conversion from a switch condition to an integral or
enumeration type out into a separate, reusable routine. The only
functionality change here is that we recover a little more
aggressively from ill-formed switch conditions.

llvm-svn: 107222
2010-06-29 23:17:37 +00:00
Argyrios Kyrtzidis 74d28bd084 Support C++ friend declarations for PCH.
This commit 'introduces' a slightly different way to restore the state of the AST object.
It makes PCHDeclReader/PCHDeclWriter friends and gives them access to the private members of the object.
The rationale is to avoid using/modifying the AST interfaces for PCH read/write so that to:

-Avoid complications with objects that have side-effects during creation or when using some setters.
-Not 'pollute' the AST interface with methods only used by the PCH reader/writer
-Allow AST objects to be read-only.

llvm-svn: 107219
2010-06-29 22:47:00 +00:00
Argyrios Kyrtzidis 26d7201d5d When we know that we are at sub-statement reading (which is all of PCHStmtReader) use the "faster" ReadSubStmt. No functionality change.
llvm-svn: 107218
2010-06-29 22:46:25 +00:00
Daniel Dunbar 8c94ffe776 IRgen: Assignment to Objective-C properties shouldn't reload the value, for
complex values either. Previously we did this properly for regular assignment,
but not for compound assignment.
 - Also, tidy up assignment code a bit to look more like the scalar path.

llvm-svn: 107217
2010-06-29 22:44:21 +00:00
Chris Lattner 466b1419c6 fix PR7523, which was caused by the ABI code calling ConvertType instead
of ConvertTypeRecursive when it needed to in a few cases, causing pointer
types to get resolved at the wrong time.

llvm-svn: 107216
2010-06-29 22:39:04 +00:00
Daniel Dunbar c85ea8e175 IRgen: Assignment to Objective-C properties shouldn't reload the value (which
would trigger an extra method call).
 - While in the area, I also changed Clang to not emit an unnecessary load from
   'x' in cases like 'y = (x = 1)'.

llvm-svn: 107210
2010-06-29 22:00:45 +00:00
Ted Kremenek 090d62e7cc Tweaker Checker::VisitEndAnalysis to have 'hasWorkRemaining' also
be true if some paths were aborted because they exceeded
the maximum loop unrolling count.

llvm-svn: 107209
2010-06-29 21:58:54 +00:00
Douglas Gregor c048c52734 When typo correction produces a result that is not of the kind we're
looking for, reset the name within the LookupResult structure in
addition to clearing out the results. Fixes PR7508.

llvm-svn: 107197
2010-06-29 19:27:42 +00:00
Chris Lattner cccaad9584 change ABIArgInfo to hold its llvm type with PATypeHolder so that
it doesn't dangle as types get refined.  This fixes Shootout-C++/lists1
and probably also PR7522.

llvm-svn: 107196
2010-06-29 19:21:36 +00:00
Douglas Gregor 9629e9ac3e Typo correction for namespace alias definitions
llvm-svn: 107191
2010-06-29 18:55:19 +00:00
Daniel Dunbar f35e76552f Sema: Fix a subtle i64 -> i32 truncation which broke layout of large structures
with bit-fields.

llvm-svn: 107185
2010-06-29 18:34:35 +00:00
Chris Lattner 34d6281ae5 relax the CGFunctionInfo::CGFunctionInfo ctor to allow any sequence
of CanQualTypes to be passed in.

llvm-svn: 107176
2010-06-29 18:13:52 +00:00
Fariborz Jahanian 66f9a6560e This patch fixes a bug whereby, clang skipped
unimplemented property warning for properties 
coming from class's conformin protocol. It also
simplifies the algorithm in the process.
Fixes radar 8035776.

llvm-svn: 107174
2010-06-29 18:12:32 +00:00
Chris Lattner ab1e65e2ea fix PR7519: after thrashing around and remembering how all this stuff
works, the fix is quite simple: just make sure to call ConvertTypeRecursive
when the function type being lowered is in the midst of ConvertType.

llvm-svn: 107173
2010-06-29 17:56:33 +00:00
Douglas Gregor cdf87024ed Allow a using directive to refer to the implicitly-defined namespace
"std", with a warning, to improve GCC compatibility. Fixes PR7517.

As a drive-by, add typo correction for using directives.

llvm-svn: 107172
2010-06-29 17:53:46 +00:00
Douglas Gregor 56980d688b With packed enums, an enumerator's value may be stored in more bits
than the enumeration type itself takes. Fixes PR7477.

llvm-svn: 107163
2010-06-29 17:12:35 +00:00
Chris Lattner e70a007b36 minor cleanups.
llvm-svn: 107150
2010-06-29 16:40:28 +00:00
Daniel Dunbar 00d3d8e902 Driver/Darwin: Only run dsymutil when we are also compiling/assembling as part
of the compilation.
 - <rdar://problem/8141387> clang is always invoking dsymutil

llvm-svn: 107149
2010-06-29 16:38:33 +00:00
Jeffrey Yasskin bb219e01a6 Delete assert in ComputeKeyFunction. The function runs fine without it, since
there's an explicit guard on isPolymorphic, and virtual bases don't affect the
key function calculation.  This allows people to call
ASTContext::getKeyFunction on arbitrary classes.

llvm-svn: 107143
2010-06-29 15:27:35 +00:00
Chris Lattner 22a931e3bb Change X86_64ABIInfo to have ASTContext and TargetData ivars to
avoid passing ASTContext down through all the methods it has.

When classifying an argument, or argument piece, as INTEGER, check
to see if we have a pointer at exactly the same offset in the 
preferred type.  If so, use that pointer type instead of i64.  This
allows us to compile A function taking a stringref into something
like this:

define i8* @foo(i64 %D.coerce0, i8* %D.coerce1) nounwind ssp {
entry:
  %D = alloca %struct.DeclGroup, align 8          ; <%struct.DeclGroup*> [#uses=4]
  %0 = getelementptr %struct.DeclGroup* %D, i32 0, i32 0 ; <i64*> [#uses=1]
  store i64 %D.coerce0, i64* %0
  %1 = getelementptr %struct.DeclGroup* %D, i32 0, i32 1 ; <i8**> [#uses=1]
  store i8* %D.coerce1, i8** %1
  %tmp = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 0 ; <i64*> [#uses=1]
  %tmp1 = load i64* %tmp                          ; <i64> [#uses=1]
  %tmp2 = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 1 ; <i8**> [#uses=1]
  %tmp3 = load i8** %tmp2                         ; <i8*> [#uses=1]
  %add.ptr = getelementptr inbounds i8* %tmp3, i64 %tmp1 ; <i8*> [#uses=1]
  ret i8* %add.ptr
}

instead of this:

define i8* @foo(i64 %D.coerce0, i64 %D.coerce1) nounwind ssp {
entry:
  %D = alloca %struct.DeclGroup, align 8          ; <%struct.DeclGroup*> [#uses=3]
  %0 = insertvalue %0 undef, i64 %D.coerce0, 0    ; <%0> [#uses=1]
  %1 = insertvalue %0 %0, i64 %D.coerce1, 1       ; <%0> [#uses=1]
  %2 = bitcast %struct.DeclGroup* %D to %0*       ; <%0*> [#uses=1]
  store %0 %1, %0* %2, align 1
  %tmp = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 0 ; <i64*> [#uses=1]
  %tmp1 = load i64* %tmp                          ; <i64> [#uses=1]
  %tmp2 = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 1 ; <i8**> [#uses=1]
  %tmp3 = load i8** %tmp2                         ; <i8*> [#uses=1]
  %add.ptr = getelementptr inbounds i8* %tmp3, i64 %tmp1 ; <i8*> [#uses=1]
  ret i8* %add.ptr
}

This implements rdar://7375902 - [codegen quality] clang x86-64 ABI lowering code punishing StringRef

llvm-svn: 107123
2010-06-29 06:01:59 +00:00
Chris Lattner 399d22ac1b plumb preferred types down into X86_64ABIInfo::classifyArgumentType,
no functionality change.

llvm-svn: 107115
2010-06-29 01:14:09 +00:00
Chris Lattner 1d7c9f7f4b Pass the LLVM IR version of argument types down into computeInfo.
This is somewhat annoying to do this at this level, but it avoids
having ABIInfo know depend on CodeGenTypes for a hint.

Nothing is using this yet, so no functionality change.

llvm-svn: 107111
2010-06-29 01:08:48 +00:00
Chandler Carruth 8337ba6303 Prefer llvm_unreachable(...) to assert(false && ...). This is important as
without it we might exit a non-void function without returning.

llvm-svn: 107106
2010-06-29 00:23:11 +00:00
Chris Lattner 9e748e9d6e add IR names to coerced arguments.
llvm-svn: 107105
2010-06-29 00:14:52 +00:00
Chris Lattner 15ec361bd6 make the argument passing stuff in the FCA case smarter still, by
avoiding making the FCA at all when the types exactly line up.  For
example, before we made:

%struct.DeclGroup = type { i64, i64 }

define i64 @_Z3foo9DeclGroup(i64, i64) nounwind {
entry:
  %D = alloca %struct.DeclGroup, align 8          ; <%struct.DeclGroup*> [#uses=3]
  %2 = insertvalue %struct.DeclGroup undef, i64 %0, 0 ; <%struct.DeclGroup> [#uses=1]
  %3 = insertvalue %struct.DeclGroup %2, i64 %1, 1 ; <%struct.DeclGroup> [#uses=1]
  store %struct.DeclGroup %3, %struct.DeclGroup* %D
  %tmp = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 0 ; <i64*> [#uses=1]
  %tmp1 = load i64* %tmp                          ; <i64> [#uses=1]
  %tmp2 = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 1 ; <i64*> [#uses=1]
  %tmp3 = load i64* %tmp2                         ; <i64> [#uses=1]
  %add = add nsw i64 %tmp1, %tmp3                 ; <i64> [#uses=1]
  ret i64 %add
}

... which has the pointless insertvalue, which fastisel hates, now we
make:

%struct.DeclGroup = type { i64, i64 }

define i64 @_Z3foo9DeclGroup(i64, i64) nounwind {
entry:
  %D = alloca %struct.DeclGroup, align 8          ; <%struct.DeclGroup*> [#uses=4]
  %2 = getelementptr %struct.DeclGroup* %D, i32 0, i32 0 ; <i64*> [#uses=1]
  store i64 %0, i64* %2
  %3 = getelementptr %struct.DeclGroup* %D, i32 0, i32 1 ; <i64*> [#uses=1]
  store i64 %1, i64* %3
  %tmp = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 0 ; <i64*> [#uses=1]
  %tmp1 = load i64* %tmp                          ; <i64> [#uses=1]
  %tmp2 = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 1 ; <i64*> [#uses=1]
  %tmp3 = load i64* %tmp2                         ; <i64> [#uses=1]
  %add = add nsw i64 %tmp1, %tmp3                 ; <i64> [#uses=1]
  ret i64 %add
}

This only kicks in when x86-64 abi lowering decides it likes us.

llvm-svn: 107104
2010-06-29 00:06:42 +00:00
Chris Lattner 3dd716c3c3 Change CGCall to handle the "coerce" case where the coerce-to type
is a FCA to pass each of the elements as individual scalars.  This
produces code fast isel is less likely to reject and is easier on
the optimizers.

For example, before we would compile:
struct DeclGroup { long NumDecls; char * Y; };
char * foo(DeclGroup D) {
  return D.NumDecls+D.Y;
}

to:
%struct.DeclGroup = type { i64, i64 }

define i64 @_Z3foo9DeclGroup(%struct.DeclGroup) nounwind {
entry:
  %D = alloca %struct.DeclGroup, align 8          ; <%struct.DeclGroup*> [#uses=3]
  store %struct.DeclGroup %0, %struct.DeclGroup* %D, align 1
  %tmp = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 0 ; <i64*> [#uses=1]
  %tmp1 = load i64* %tmp                          ; <i64> [#uses=1]
  %tmp2 = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 1 ; <i64*> [#uses=1]
  %tmp3 = load i64* %tmp2                         ; <i64> [#uses=1]
  %add = add nsw i64 %tmp1, %tmp3                 ; <i64> [#uses=1]
  ret i64 %add
}

Now we get:

%0 = type { i64, i64 }
%struct.DeclGroup = type { i64, i8* }

define i8* @_Z3foo9DeclGroup(i64, i64) nounwind {
entry:
  %D = alloca %struct.DeclGroup, align 8          ; <%struct.DeclGroup*> [#uses=3]
  %2 = insertvalue %0 undef, i64 %0, 0            ; <%0> [#uses=1]
  %3 = insertvalue %0 %2, i64 %1, 1               ; <%0> [#uses=1]
  %4 = bitcast %struct.DeclGroup* %D to %0*       ; <%0*> [#uses=1]
  store %0 %3, %0* %4, align 1
  %tmp = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 0 ; <i64*> [#uses=1]
  %tmp1 = load i64* %tmp                          ; <i64> [#uses=1]
  %tmp2 = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 1 ; <i8**> [#uses=1]
  %tmp3 = load i8** %tmp2                         ; <i8*> [#uses=1]
  %add.ptr = getelementptr inbounds i8* %tmp3, i64 %tmp1 ; <i8*> [#uses=1]
  ret i8* %add.ptr
}

Elimination of the FCA inside the function is still-to-come.

llvm-svn: 107099
2010-06-28 23:44:11 +00:00
Chris Lattner d200eda487 make the trivial forms of CreateCoerced{Load|Store} trivial.
llvm-svn: 107091
2010-06-28 22:51:39 +00:00
Argyrios Kyrtzidis d0795b2d78 Modify the way sub-statements are stored and retrieved from PCH.
Before this commit, sub-stmts were stored as encountered and when they were placed in the Stmts stack we had to know what index
each stmt operand has. This complicated supporting variable sub-stmts and sub-stmts that were contained in TypeSourceInfos, e.g.

x = sizeof(int[1]);

would crash PCH.

Now, sub-stmts are stored in reverse order, from last to first, so that when reading them, in order to get the next sub-stmt we just
need to pop the last stmt from the stack. This greatly simplified the way stmts are written and read (just use PCHWriter::AddStmt and
 PCHReader::ReadStmt accordingly) and allowed variable stmt operands and TypeSourceInfo exprs.

llvm-svn: 107087
2010-06-28 22:28:35 +00:00
Chris Lattner 93af332819 pass/return structs of char and short as i8/i16 to avoid
aweful through-memory coersion, just like we do for i32 now.

llvm-svn: 107078
2010-06-28 21:59:07 +00:00
Chris Lattner d776fb150e more tidying up.
llvm-svn: 107076
2010-06-28 21:43:59 +00:00
Ted Kremenek e60d304d13 Remove state assertion.
llvm-svn: 107064
2010-06-28 20:44:49 +00:00
Ted Kremenek ea78375ed4 Don't crash in InitializePreprocessor() when there is no valid PTHManager. Fixes <rdar://problem/8098441>.
llvm-svn: 107061
2010-06-28 20:32:40 +00:00
Chris Lattner 0cf2419cd7 random acts of tidying.
llvm-svn: 107050
2010-06-28 20:05:43 +00:00
Chris Lattner a7d81ab7f3 X86-64:
pass/return structs of float/int as float/i32 instead of double/i64
to make the code generated for ABI cleaner.  Passing in the low part
of a double is the same as passing in a float.

For example, we now compile:

struct DeclGroup { float NumDecls; };
float foo(DeclGroup D);
void bar(DeclGroup *D) {
 foo(*D);
}

into:

%struct.DeclGroup = type { float }

define void @_Z3barP9DeclGroup(%struct.DeclGroup* %D) nounwind {
entry:
  %D.addr = alloca %struct.DeclGroup*, align 8    ; <%struct.DeclGroup**> [#uses=2]
  %agg.tmp = alloca %struct.DeclGroup, align 4    ; <%struct.DeclGroup*> [#uses=2]
  store %struct.DeclGroup* %D, %struct.DeclGroup** %D.addr
  %tmp = load %struct.DeclGroup** %D.addr         ; <%struct.DeclGroup*> [#uses=1]
  %tmp1 = bitcast %struct.DeclGroup* %agg.tmp to i8* ; <i8*> [#uses=1]
  %tmp2 = bitcast %struct.DeclGroup* %tmp to i8*  ; <i8*> [#uses=1]
  call void @llvm.memcpy.p0i8.p0i8.i64(i8* %tmp1, i8* %tmp2, i64 4, i32 4, i1 false)
  %coerce.dive = getelementptr %struct.DeclGroup* %agg.tmp, i32 0, i32 0 ; <float*> [#uses=1]
  %0 = load float* %coerce.dive, align 1          ; <float> [#uses=1]
  %call = call float @_Z3foo9DeclGroup(float %0)  ; <float> [#uses=0]
  ret void
}

instead of:

%struct.DeclGroup = type { float }

define void @_Z3barP9DeclGroup(%struct.DeclGroup* %D) nounwind {
entry:
  %D.addr = alloca %struct.DeclGroup*, align 8    ; <%struct.DeclGroup**> [#uses=2]
  %agg.tmp = alloca %struct.DeclGroup, align 4    ; <%struct.DeclGroup*> [#uses=2]
  %tmp3 = alloca double                           ; <double*> [#uses=2]
  store %struct.DeclGroup* %D, %struct.DeclGroup** %D.addr
  %tmp = load %struct.DeclGroup** %D.addr         ; <%struct.DeclGroup*> [#uses=1]
  %tmp1 = bitcast %struct.DeclGroup* %agg.tmp to i8* ; <i8*> [#uses=1]
  %tmp2 = bitcast %struct.DeclGroup* %tmp to i8*  ; <i8*> [#uses=1]
  call void @llvm.memcpy.p0i8.p0i8.i64(i8* %tmp1, i8* %tmp2, i64 4, i32 4, i1 false)
  %coerce.dive = getelementptr %struct.DeclGroup* %agg.tmp, i32 0, i32 0 ; <float*> [#uses=1]
  %0 = bitcast double* %tmp3 to float*            ; <float*> [#uses=1]
  %1 = load float* %coerce.dive                   ; <float> [#uses=1]
  store float %1, float* %0, align 1
  %2 = load double* %tmp3                         ; <double> [#uses=1]
  %call = call float @_Z3foo9DeclGroup(double %2) ; <float> [#uses=0]
  ret void
}

which is this machine code (at -O0):

__Z3barP9DeclGroup:
	subq	$24, %rsp
	movq	%rdi, 16(%rsp)
	movq	16(%rsp), %rdi
	leaq	8(%rsp), %rax
	movl	(%rdi), %ecx
	movl	%ecx, (%rax)
	movss	8(%rsp), %xmm0
	callq	__Z3foo9DeclGroup
	addq	$24, %rsp
	ret

vs this:

__Z3barP9DeclGroup:
	subq	$24, %rsp
	movq	%rdi, 16(%rsp)
	movq	16(%rsp), %rdi
	leaq	8(%rsp), %rax
	movl	(%rdi), %ecx
	movl	%ecx, (%rax)
	movss	8(%rsp), %xmm0
	movss	%xmm0, (%rsp)
	movsd	(%rsp), %xmm0
	callq	__Z3foo9DeclGroup
	addq	$24, %rsp
	ret

At -O3, it is the difference between this now:

__Z3barP9DeclGroup:
	movss	(%rdi), %xmm0
	jmp	__Z3foo9DeclGroup  # TAILCALL

vs this before:

__Z3barP9DeclGroup:
	movl	(%rdi), %eax
	movd	%rax, %xmm0
	jmp	__Z3foo9DeclGroup  # TAILCALL

llvm-svn: 107048
2010-06-28 19:56:59 +00:00
Fariborz Jahanian c42461e145 Minor refactorin of my last patch (radar 7860965 related).
llvm-svn: 107047
2010-06-28 19:42:10 +00:00
Fariborz Jahanian 36ad0e99d5 Have __func__ and siblings point to block's implementation function
name. Fixes radar 7860965.

llvm-svn: 107044
2010-06-28 18:58:34 +00:00
Rafael Espindola 0e1fb4f341 Set the default arch based on the triple.
llvm-svn: 107021
2010-06-28 17:18:09 +00:00
Chris Lattner c1028f689e Fix UnitTests/2004-02-02-NegativeZero.c, which regressed when
I broke negate of FP values.

llvm-svn: 107019
2010-06-28 17:12:37 +00:00
Dan Gohman 3bc1b0c882 llvm::errs() is non-buffered, so it doesn't need to be flushed.
llvm-svn: 107012
2010-06-28 15:56:07 +00:00
Sebastian Redl f9463106b3 Introduce Expr::Classify and Expr::ClassifyModifiable, which determine the classification of an expression under the C++0x taxology (value category). Reimplement isLvalue and isModifiableLvalue using these functions. No regressions in the test suite from this, and my rough performance check doesn't show any regressions either.
llvm-svn: 107007
2010-06-28 15:09:07 +00:00
Argyrios Kyrtzidis 99a226dde4 Support CXXPseudoDestructorExpr for PCH.
llvm-svn: 106999
2010-06-28 09:32:03 +00:00
Argyrios Kyrtzidis cd444d1af7 Support DependentScopeDeclRefExpr for PCH.
llvm-svn: 106998
2010-06-28 09:31:56 +00:00
Argyrios Kyrtzidis b5288de67c Refactor PCH reading/writing of template arguments passed to expressions.
llvm-svn: 106997
2010-06-28 09:31:48 +00:00
Argyrios Kyrtzidis ddf5f211d0 Fix PCH emitting/reading for template arguments that contain expressions.
llvm-svn: 106996
2010-06-28 09:31:42 +00:00
Argyrios Kyrtzidis 0b0369a6b3 Fix various bugs in recent commits for C++ PCH.
llvm-svn: 106995
2010-06-28 09:31:34 +00:00
Chandler Carruth 2d69ec7a72 Partial fix for PR7267 based on comments by John McCall on an earlier patch.
This is more targeted, as it simply provides toggle actions for the parser to
turn access checking on and off. We then use these to suppress access checking
only while we parse the template-id (included scope specifier) of an explicit
instantiation and explicit specialization of a class template. The
specialization behavior is an extension, as it seems likely a defect that the
standard did not exempt them as it does explicit instantiations.

This allows the very common practice of specializing trait classes to work for
private, internal types. This doesn't address instantiating or specializing
function templates, although those apparently already partially work.

The naming and style for the Action layer isn't my favorite, comments and
suggestions would be appreciated there.

llvm-svn: 106993
2010-06-28 08:39:25 +00:00
Jordy Rose 61176897ba Pointer comparisons (and pointer-pointer subtraction). Basically filling in SimpleSValuator::EvalBinOpLL().
llvm-svn: 106992
2010-06-28 08:26:15 +00:00
Chandler Carruth b6f991787b Suppress diagnosing access violations while looking up deallocation functions
much as we already do for allocation function lookup. Explicitly check access
for the function we actually select in one case that was previously missing,
but being caught behind the blanket diagnostics for all overload candidates.
This fixs PR7436.

llvm-svn: 106986
2010-06-28 00:30:51 +00:00
Rafael Espindola b1ef8ffb15 Use softfp for linux gnueabi, keep the warning for everything else.
llvm-svn: 106984
2010-06-27 18:29:21 +00:00
Anders Carlsson 3f48c603fb Correctly destroy reference temporaries with global storage. Remove ErrorUnsupported call when binding a global reference to a non-lvalue. Fixes PR7326.
llvm-svn: 106983
2010-06-27 17:52:15 +00:00
Anders Carlsson 18c205ecdf Add a CreateReferenceTemporary that will do the right thing for variables with global storage.
llvm-svn: 106982
2010-06-27 17:23:46 +00:00
Anders Carlsson 2969c8c69d Simplify CodeGenFunction::EmitReferenceBindingToExpr as a first step towards fixing PR7326.
llvm-svn: 106981
2010-06-27 16:56:04 +00:00
Anders Carlsson ca68d357d4 Reduce indentation.
llvm-svn: 106980
2010-06-27 15:24:55 +00:00
Chris Lattner 818efb64a3 misc tidying
llvm-svn: 106978
2010-06-27 07:40:06 +00:00
Chris Lattner 5e016ae983 finally get around to doing a significant cleanup to irgen:
have CGF create and make accessible standard int32,int64 and 
intptr types.  This fixes a ton of 80 column violations 
introduced by LLVMContextification and cleans up stuff a lot.

llvm-svn: 106977
2010-06-27 07:15:29 +00:00
Chris Lattner e000907e13 tidy up OrderGlobalInits
llvm-svn: 106976
2010-06-27 06:32:58 +00:00
Chris Lattner 055097f024 If coercing something from int or pointer type to int or pointer type
(potentially after unwrapping it from a struct) do it without going through
memory.  We now compile:

struct DeclGroup {
  unsigned NumDecls;
};

int foo(DeclGroup D) {
  return D.NumDecls;
}

into:

%struct.DeclGroup = type { i32 }

define i32 @_Z3foo9DeclGroup(i64) nounwind ssp noredzone {
entry:
  %D = alloca %struct.DeclGroup, align 4          ; <%struct.DeclGroup*> [#uses=2]
  %coerce.dive = getelementptr %struct.DeclGroup* %D, i32 0, i32 0 ; <i32*> [#uses=1]
  %coerce.val.ii = trunc i64 %0 to i32            ; <i32> [#uses=1]
  store i32 %coerce.val.ii, i32* %coerce.dive
  %tmp = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 0 ; <i32*> [#uses=1]
  %tmp1 = load i32* %tmp                          ; <i32> [#uses=1]
  ret i32 %tmp1
}

instead of:

%struct.DeclGroup = type { i32 }

define i32 @_Z3foo9DeclGroup(i64) nounwind ssp noredzone {
entry:
  %D = alloca %struct.DeclGroup, align 4          ; <%struct.DeclGroup*> [#uses=2]
  %tmp = alloca i64                               ; <i64*> [#uses=2]
  %coerce.dive = getelementptr %struct.DeclGroup* %D, i32 0, i32 0 ; <i32*> [#uses=1]
  store i64 %0, i64* %tmp
  %1 = bitcast i64* %tmp to i32*                  ; <i32*> [#uses=1]
  %2 = load i32* %1, align 1                      ; <i32> [#uses=1]
  store i32 %2, i32* %coerce.dive
  %tmp1 = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 0 ; <i32*> [#uses=1]
  %tmp2 = load i32* %tmp1                         ; <i32> [#uses=1]
  ret i32 %tmp2
}

... which is quite a bit less terrifying.

llvm-svn: 106975
2010-06-27 06:26:04 +00:00
Chris Lattner 895c52ba8b Same patch as the previous on the store side. Before we compiled this:
struct DeclGroup {
  unsigned NumDecls;
};

int foo(DeclGroup D) {
  return D.NumDecls;
}

to:

%struct.DeclGroup = type { i32 }

define i32 @_Z3foo9DeclGroup(i64) nounwind ssp noredzone {
entry:
  %D = alloca %struct.DeclGroup, align 4          ; <%struct.DeclGroup*> [#uses=2]
  %tmp = alloca i64                               ; <i64*> [#uses=2]
  store i64 %0, i64* %tmp
  %1 = bitcast i64* %tmp to %struct.DeclGroup*    ; <%struct.DeclGroup*> [#uses=1]
  %2 = load %struct.DeclGroup* %1, align 1        ; <%struct.DeclGroup> [#uses=1]
  store %struct.DeclGroup %2, %struct.DeclGroup* %D
  %tmp1 = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 0 ; <i32*> [#uses=1]
  %tmp2 = load i32* %tmp1                         ; <i32> [#uses=1]
  ret i32 %tmp2
}

which caused fast isel bailouts due to the FCA load/store of %2.  Now
we generate this just blissful code:

%struct.DeclGroup = type { i32 }

define i32 @_Z3foo9DeclGroup(i64) nounwind ssp noredzone {
entry:
  %D = alloca %struct.DeclGroup, align 4          ; <%struct.DeclGroup*> [#uses=2]
  %tmp = alloca i64                               ; <i64*> [#uses=2]
  %coerce.dive = getelementptr %struct.DeclGroup* %D, i32 0, i32 0 ; <i32*> [#uses=1]
  store i64 %0, i64* %tmp
  %1 = bitcast i64* %tmp to i32*                  ; <i32*> [#uses=1]
  %2 = load i32* %1, align 1                      ; <i32> [#uses=1]
  store i32 %2, i32* %coerce.dive
  %tmp1 = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 0 ; <i32*> [#uses=1]
  %tmp2 = load i32* %tmp1                         ; <i32> [#uses=1]
  ret i32 %tmp2
}

This avoids fastisel bailing out and is groundwork for future patch.
This reduces bailouts on CGStmt.ll to 911 from 935.

llvm-svn: 106974
2010-06-27 06:04:18 +00:00
Chris Lattner 1cd6698a7c improve CreateCoercedLoad a bit to generate slightly less awful
IR when handling X86-64 by-value struct stuff.  For example, we
use to compile this:

struct DeclGroup {
  unsigned NumDecls;
};

int foo(DeclGroup D);
void bar(DeclGroup *D) {
  foo(*D);
}

into:

define void @_Z3barP9DeclGroup(%struct.DeclGroup* %D) ssp nounwind {
entry:
  %D.addr = alloca %struct.DeclGroup*, align 8    ; <%struct.DeclGroup**> [#uses=2]
  %agg.tmp = alloca %struct.DeclGroup, align 4    ; <%struct.DeclGroup*> [#uses=2]
  %tmp3 = alloca i64                              ; <i64*> [#uses=2]
  store %struct.DeclGroup* %D, %struct.DeclGroup** %D.addr
  %tmp = load %struct.DeclGroup** %D.addr         ; <%struct.DeclGroup*> [#uses=1]
  %tmp1 = bitcast %struct.DeclGroup* %agg.tmp to i8* ; <i8*> [#uses=1]
  %tmp2 = bitcast %struct.DeclGroup* %tmp to i8*  ; <i8*> [#uses=1]
  call void @llvm.memcpy.p0i8.p0i8.i64(i8* %tmp1, i8* %tmp2, i64 4, i32 4, i1 false)
  %0 = bitcast i64* %tmp3 to %struct.DeclGroup*   ; <%struct.DeclGroup*> [#uses=1]
  %1 = load %struct.DeclGroup* %agg.tmp           ; <%struct.DeclGroup> [#uses=1]
  store %struct.DeclGroup %1, %struct.DeclGroup* %0, align 1
  %2 = load i64* %tmp3                            ; <i64> [#uses=1]
  call void @_Z3foo9DeclGroup(i64 %2)
  ret void
}

which would cause fastisel to bail out due to the first class aggregate load %1.  With
this patch we now compile it into the (still awful):

define void @_Z3barP9DeclGroup(%struct.DeclGroup* %D) nounwind ssp noredzone {
entry:
  %D.addr = alloca %struct.DeclGroup*, align 8    ; <%struct.DeclGroup**> [#uses=2]
  %agg.tmp = alloca %struct.DeclGroup, align 4    ; <%struct.DeclGroup*> [#uses=2]
  %tmp3 = alloca i64                              ; <i64*> [#uses=2]
  store %struct.DeclGroup* %D, %struct.DeclGroup** %D.addr
  %tmp = load %struct.DeclGroup** %D.addr         ; <%struct.DeclGroup*> [#uses=1]
  %tmp1 = bitcast %struct.DeclGroup* %agg.tmp to i8* ; <i8*> [#uses=1]
  %tmp2 = bitcast %struct.DeclGroup* %tmp to i8*  ; <i8*> [#uses=1]
  call void @llvm.memcpy.p0i8.p0i8.i64(i8* %tmp1, i8* %tmp2, i64 4, i32 4, i1 false)
  %coerce.dive = getelementptr %struct.DeclGroup* %agg.tmp, i32 0, i32 0 ; <i32*> [#uses=1]
  %0 = bitcast i64* %tmp3 to i32*                 ; <i32*> [#uses=1]
  %1 = load i32* %coerce.dive                     ; <i32> [#uses=1]
  store i32 %1, i32* %0, align 1
  %2 = load i64* %tmp3                            ; <i64> [#uses=1]
  %call = call i32 @_Z3foo9DeclGroup(i64 %2) noredzone ; <i32> [#uses=0]
  ret void
}

which doesn't bail out.  On CGStmt.ll, this reduces fastisel bail outs from 958 to 935,
and is the precursor of better things to come.

llvm-svn: 106973
2010-06-27 05:56:15 +00:00
Jordy Rose 7f8ea4d677 Implicitly compare symbolic expressions to zero when they're being used as constraints. Part of PR7491.
llvm-svn: 106972
2010-06-27 01:20:56 +00:00
Chris Lattner 3fcc790cd8 Change IR generation for return (in the simple case) to avoid doing silly
load/store nonsense in the epilog.  For example, for:

int foo(int X) {
  int A[100];
  return A[X];
}

we used to generate:

  %arrayidx = getelementptr inbounds [100 x i32]* %A, i32 0, i64 %idxprom ; <i32*> [#uses=1]
  %tmp1 = load i32* %arrayidx                     ; <i32> [#uses=1]
  store i32 %tmp1, i32* %retval
  %0 = load i32* %retval                          ; <i32> [#uses=1]
  ret i32 %0
}

which codegen'd to this code:

_foo:                                   ## @foo
## BB#0:                                ## %entry
	subq	$408, %rsp              ## imm = 0x198
	movl	%edi, 400(%rsp)
	movl	400(%rsp), %edi
	movslq	%edi, %rax
	movl	(%rsp,%rax,4), %edi
	movl	%edi, 404(%rsp)
	movl	404(%rsp), %eax
	addq	$408, %rsp              ## imm = 0x198
	ret

Now we generate:

  %arrayidx = getelementptr inbounds [100 x i32]* %A, i32 0, i64 %idxprom ; <i32*> [#uses=1]
  %tmp1 = load i32* %arrayidx                     ; <i32> [#uses=1]
  ret i32 %tmp1
}

and:

_foo:                                   ## @foo
## BB#0:                                ## %entry
	subq	$408, %rsp              ## imm = 0x198
	movl	%edi, 404(%rsp)
	movl	404(%rsp), %edi
	movslq	%edi, %rax
	movl	(%rsp,%rax,4), %eax
	addq	$408, %rsp              ## imm = 0x198
	ret

This actually does matter, cutting out 2000 lines of IR from CGStmt.ll 
for example.

Another interesting effect is that altivec.h functions which are dead
now get dce'd by the inliner.  Hence all the changes to 
builtins-ppc-altivec.c to ensure the calls aren't dead.

llvm-svn: 106970
2010-06-27 01:06:27 +00:00
Chris Lattner 726b3d09cd reduce indentation
llvm-svn: 106967
2010-06-26 23:13:19 +00:00
Chris Lattner 6c5abe88bf Implement rdar://7530813 - collapse multiple GEP instructions in IRgen
This avoids generating two gep's for common array operations.  Before
we would generate something like:

  %tmp = load i32* %X.addr                        ; <i32> [#uses=1]
  %arraydecay = getelementptr inbounds [100 x i32]* %A, i32 0, i32 0 ; <i32*> [#uses=1]
  %arrayidx = getelementptr inbounds i32* %arraydecay, i32 %tmp ; <i32*> [#uses=1]
  %tmp1 = load i32* %arrayidx                     ; <i32> [#uses=1]

Now we generate:

  %tmp = load i32* %X.addr                        ; <i32> [#uses=1]
  %arrayidx = getelementptr inbounds [100 x i32]* %A, i32 0, i32 %tmp ; <i32*> [#uses=1]
  %tmp1 = load i32* %arrayidx                     ; <i32> [#uses=1]

Less IR is better at -O0.

llvm-svn: 106966
2010-06-26 23:03:20 +00:00
Ted Kremenek f00eac5cff Allow '__extension__' to be analyzed in a lvalue context.
llvm-svn: 106964
2010-06-26 22:40:52 +00:00
Chris Lattner 57ce97151f minor cleanup: don't emit the base of an array subscript until after
we're done diddling around with the index stuff.  Use a cheaper type
comparison.

llvm-svn: 106963
2010-06-26 22:40:46 +00:00
Chris Lattner 431bef4409 fix inc/dec to honor -fwrapv and -ftrapv, implementing PR7426.
llvm-svn: 106962
2010-06-26 22:18:28 +00:00
Chris Lattner 05dc78c096 move scalar inc/dec codegen into ScalarExprEmitter instead
of being in CGF.  No functionality change.

llvm-svn: 106961
2010-06-26 22:09:34 +00:00
Chris Lattner fa20e95043 use more efficient type comparison predicates.
llvm-svn: 106958
2010-06-26 21:52:32 +00:00
Chris Lattner 0bf27620f0 Fix unary minus to trap on overflow with -ftrapv, refactoring binop
code so we can use it from VisitUnaryMinus.

llvm-svn: 106957
2010-06-26 21:48:21 +00:00
Chris Lattner 51924e517b Implement support for -fwrapv, rdar://7221421
As part of this, pull together trapv handling into the same enum.

This also add support for NSW multiplies.

This also makes PCH disagreement on overflow behavior silent, since it
really doesn't matter except for warnings and codegen (no macros get 
defined etc).

llvm-svn: 106956
2010-06-26 21:25:03 +00:00
Chris Lattner 217e056e40 implement rdar://7432000 - signed negate should codegen as NSW.
While I'm in there, adjust pointer to member adjustments as well.

llvm-svn: 106955
2010-06-26 20:27:24 +00:00
Chris Lattner 30c924b3e8 Implement support for #pragma message, patch by Michael Spencer!
llvm-svn: 106950
2010-06-26 17:11:39 +00:00
Anders Carlsson 04775f8413 Change EmitReferenceBindingToExpr to take a decl instead of a boolean.
llvm-svn: 106949
2010-06-26 16:35:32 +00:00
Anders Carlsson 709ef8e46c Add function for mangling reference temporaries.
llvm-svn: 106948
2010-06-26 16:09:40 +00:00
Charles Davis f4db33cbdf Mangle pointer and (lvalue) reference types in the Microsoft C++ Mangler.
Also, fix mangling of throw specs. Turns out MSVC totally ignores throw
specs when mangling names.

llvm-svn: 106937
2010-06-26 03:50:05 +00:00
Bob Wilson f11a38dcce Add a missing dependency to try to fix a buildbot failure.
It complained with:

llvm[5]: Building Clang arm_neon.h.inc with tblgen
cp: cannot create regular file `/build/buildbot-llvm/clang-x86_64-linux-selfhost-rel/llvm.obj.2/Release/lib/clang/2.0/include/arm_neon.h': No such file or directory

llvm-svn: 106922
2010-06-26 00:03:23 +00:00
Ted Kremenek 58f61ec1de Relax assertion since non-pod C++ classes are not aggregates, but still can appear in this context.
llvm-svn: 106919
2010-06-25 23:51:38 +00:00
Jordy Rose c3bcc36a0b When a constant size array is casted to another type, its length should be scaled as well.
llvm-svn: 106911
2010-06-25 23:23:04 +00:00
Ted Kremenek abb1f91325 Use TypeSourceInfo to help determine the SourceRange of a CXXNewExpr. This fixes several
cases where we generated an invalid SourceRange for this expression.  Thanks to John McCall
for helping me figure this out.

llvm-svn: 106903
2010-06-25 22:48:49 +00:00
Ted Kremenek fe97a1ac65 Add "checker caching" to GRExprEngine::CheckerVisit to progressively build
a winowed list of checkers that actually do something for a given StmtClass.
As the number of checkers grows, this may potentially significantly reduce
the number of checkers called at any one time.  My own measurements show that
for the ~20 registered Checker objects, only ~5 of them respond at any one time
to a give statement.  While this isn't a net performance win right now (there
is a minor slowdown on sqlite.3) this improvement does greatly improve debugging
when stepping through the checkers used to evaluate a given statement.

llvm-svn: 106884
2010-06-25 20:59:31 +00:00
Ted Kremenek 76abf19ea6 Fix -analyze-display-progress (once again), this time with an additional regression test.
llvm-svn: 106883
2010-06-25 20:59:24 +00:00
Fariborz Jahanian b66b08ef01 Minor change to my last patch to fix PR7490.
llvm-svn: 106875
2010-06-25 20:01:13 +00:00
Eric Christopher 17c7b89054 Translate numbers properly.
llvm-svn: 106873
2010-06-25 19:04:52 +00:00
Fariborz Jahanian d5202e0926 IRGen for trivial initialization of dynamiccaly allocated
array of other done c++ objects. Fixes PR7490.

llvm-svn: 106869
2010-06-25 18:26:07 +00:00
Tom Care 375387d1f8 Change RegionStoreManager::Retrieve to infer the type of a symbolic region from the context when it is not already available.
llvm-svn: 106868
2010-06-25 18:22:31 +00:00
Daniel Dunbar 283fe3d07a build: Get CLANG_VERSION from Version.inc instead of depending on VER file directly.
llvm-svn: 106864
2010-06-25 17:33:49 +00:00
Argyrios Kyrtzidis b1d38e3f4a Support NonTypeTemplateParmDecl for PCH.
llvm-svn: 106860
2010-06-25 16:25:09 +00:00
Argyrios Kyrtzidis 03e5e0467c Make PCHWriter::FlushStmts() robust. If we added null Stmts, reading them back got messed up.
llvm-svn: 106859
2010-06-25 16:25:02 +00:00
Argyrios Kyrtzidis f0f7a792d7 Support DependentTemplateSpecializationType and ElaboratedType for PCH.
llvm-svn: 106858
2010-06-25 16:24:58 +00:00
Argyrios Kyrtzidis dc9ca0afa8 Add forgotten breaks in case statements.
llvm-svn: 106857
2010-06-25 16:24:51 +00:00
Argyrios Kyrtzidis 58e01ad26f Support UnresolvedLookupExpr for PCH.
llvm-svn: 106832
2010-06-25 09:03:34 +00:00
Argyrios Kyrtzidis b8d3c63820 Support UnresolvedMemberExpr for PCH.
llvm-svn: 106831
2010-06-25 09:03:26 +00:00
Argyrios Kyrtzidis 6ba1bb5dec Print source location when we encounter unhandled statement during PCH writing.
llvm-svn: 106830
2010-06-25 09:03:12 +00:00
Chandler Carruth f40c42f2cd Implement dependent alignment attribute support. This is a bit gross given the
current attribute system, but it is enough to handle class templates which
specify parts of their alignment in terms of their template parameters.

This also replaces the attributes test in SemaTemplate with one that actually
tests working attributes instead of broken ones. I plan to add more tests here
for non-dependent attributes in a subsequent patch.

Thanks to John for walking me through some of this. =D

llvm-svn: 106818
2010-06-25 03:22:07 +00:00
Fariborz Jahanian ad356a14f9 Add comment for my last patch.
llvm-svn: 106813
2010-06-25 00:05:45 +00:00
John Thompson ceebdf1fc6 Fixed another double-char in PPC-specific asm constraints.
llvm-svn: 106812
2010-06-25 00:02:05 +00:00
John Thompson 07a61a41c8 Added PPC-specific asm constraints, PS3 configuration changes.
llvm-svn: 106806
2010-06-24 22:44:13 +00:00
Eric Christopher ca10da8839 Remove HAS_TLS define.
llvm-svn: 106786
2010-06-24 20:41:41 +00:00
Fariborz Jahanian 4f9c9d6591 Fixes a regression when redeclaration of a global satic
is an extern local to a function. Radar 8125274.

llvm-svn: 106773
2010-06-24 18:50:41 +00:00
Ted Kremenek 87f475a329 Return null pointer instead of 'false' (fixes clang warning).
llvm-svn: 106755
2010-06-24 16:26:12 +00:00
Zhongxing Xu facf8a8e74 Add check for illegal whence argument of fseek.
llvm-svn: 106742
2010-06-24 13:36:41 +00:00
Zhongxing Xu a7e5dd6c3a Should return stateNotNull.
llvm-svn: 106741
2010-06-24 13:09:02 +00:00
Zhongxing Xu ae45144d81 Let StreamChecker::CheckNullStream() return a GRState after successful check.
llvm-svn: 106738
2010-06-24 12:52:28 +00:00
Argyrios Kyrtzidis bfcacee9b3 Support a couple more C++ Exprs for PCH.
llvm-svn: 106727
2010-06-24 08:57:31 +00:00
Argyrios Kyrtzidis 30d98f3d9e Fix broken de/serialization for a couple of C++ Exprs.
llvm-svn: 106726
2010-06-24 08:57:09 +00:00
Eric Christopher 03256c32ff More clang support for darwin tls. Add a __has_feature macro and
target specific preprocessor define as well.

llvm-svn: 106715
2010-06-24 02:02:00 +00:00
Fariborz Jahanian 9b5528d278 Patch to correctly mangle block helper functions
when block literal is declared inside a ctor/dtor.
Fixes radr 8096995.

llvm-svn: 106700
2010-06-24 00:08:06 +00:00
Ted Kremenek 574f304631 Add 'VisitEndAnalysis' callback to Checker class. This callback is called by GRExprEngine
when the worklist algorithm has terminated.  This allows some checkers to do a post-analysis
phase after all paths have been analyzed.

llvm-svn: 106689
2010-06-23 22:08:00 +00:00
Duncan Sands d3e231eb3c Add parentheses suggested by gcc.
llvm-svn: 106668
2010-06-23 19:34:52 +00:00
Daniel Dunbar a99a3c108f Driver: Add make variable to allow disabling default integrated assembler, till
all the kinks are worked out.

llvm-svn: 106641
2010-06-23 18:15:13 +00:00
Argyrios Kyrtzidis 818c5db054 Support C++ class template specializations and partial specializations for PCH.
llvm-svn: 106625
2010-06-23 13:48:30 +00:00
Argyrios Kyrtzidis fe6ba881b6 Modify ClassTemplateSpecializationDecl and ClassTemplatePartialSpecializationDecl to allow PCH read/write.
llvm-svn: 106624
2010-06-23 13:48:23 +00:00
Chris Lattner 37141f4fb4 improve altivec vector bool/pixel support, patch by Anton Yartsev
with several tweaks by me.

llvm-svn: 106619
2010-06-23 06:00:24 +00:00
Chris Lattner b48a2d5d2f polish the -finstrument-functions implementation, patch by Nelson Elhage!
llvm-svn: 106618
2010-06-23 05:21:28 +00:00
Zhongxing Xu 2213aa360a add comments.
llvm-svn: 106617
2010-06-23 02:12:00 +00:00
Zhongxing Xu 93cef8665c add comments.
llvm-svn: 106616
2010-06-23 02:06:56 +00:00
Ted Kremenek 2a33a0deef Correctly construct an ElementRegion for alloca() + pointer arithmetic. Fixes analyzer
crash reported in PR 7450.

llvm-svn: 106609
2010-06-22 23:58:31 +00:00
Douglas Gregor 689999da1f String literals enclosed in parentheses are still string
literals. Fixes PR7488.

llvm-svn: 106607
2010-06-22 23:47:37 +00:00
Douglas Gregor 769ba3e50c Make c++ and C++ valid extensions for C++ source files, from Seth Cantrell!
llvm-svn: 106602
2010-06-22 23:43:22 +00:00
Douglas Gregor a3208f9e7c Vector types are not arithmetic types, either. Note that we now ban
__real myvec and __imag myvec, since they aren't all that useful (it's
just an identity function) but we might want to use them in more
restricted cases in the future (e.g., "__real mycomplexvec" could
extract the real parts of a vector of complex numbers).

llvm-svn: 106601
2010-06-22 23:41:02 +00:00
Fariborz Jahanian 3bf0ded346 Patch to provide separate ASTs for multiple ObjC class extension
declarations (implements radar 7928731).

llvm-svn: 106597
2010-06-22 23:20:40 +00:00
Douglas Gregor c646d13054 Teach Type::isRealType() that vector types are never real types. All
of the callers of isRealType() already assumed this, and one of them
(increment/decrement) mistakenly permitted increments of vector types
because of it.

llvm-svn: 106596
2010-06-22 23:13:52 +00:00
Douglas Gregor 49b4d73451 Type Type::isRealFloatingType() that vectors are not floating-point
types, updating callers of both isFloatingType() and
isRealFloatingType() accordingly. Caught at least one issue where we
allowed one to declare a vector of vectors (!), along with cleaning up
the standard-conversion logic for C++.

llvm-svn: 106595
2010-06-22 23:07:26 +00:00
Douglas Gregor 4ffbad1904 Change Type::isFloatingType() to reflect the actual definition of a
"floating type" in C, which does not include vector types. Introduce
Type::hasFloatingRepresentation() for the places where we want to know
whether the underlying representation is one or more floating-point
values. Remove some hacks we had where the former behavior of
Type::isFloatingType() was at odds with the language definition of the
term.

llvm-svn: 106584
2010-06-22 22:12:46 +00:00
Daniel Dunbar a91c0ba88a Driver: Remove some dead code left around after a refactoring. Found by the
Clang static analyzer!

llvm-svn: 106568
2010-06-22 20:18:18 +00:00
Ted Kremenek 55081f9317 Don't assert on C++ casts that are currently not handled by the static analyzer.
Instead, halt the analysis of the current path, which is what we do in GRExprEngine::ProcessStmt
for all other C++ constructs not currently handled by the analyzer.

llvm-svn: 106561
2010-06-22 19:05:10 +00:00
Argyrios Kyrtzidis 6e57c35513 Read/write CXXDeleteExpr from/to PCH.
llvm-svn: 106552
2010-06-22 17:07:59 +00:00
Douglas Gregor db48cf3c31 Don't allow vector conversions to sneak in under the guise of
floating-point conversions or floating-integral conversions. We
really, really, really need to make isFloatingType() and friends not
apply to vector types.

llvm-svn: 106551
2010-06-22 16:52:27 +00:00
Fariborz Jahanian 7966aff294 Fixes a problem in generation of meta-data for
category implementation whereby property list was missing.
NeXt ObjC runtime (radar 8093297).

llvm-svn: 106550
2010-06-22 16:33:55 +00:00
Anders Carlsson ea836bc41c Switch over to the new caching version of getMangledName.
llvm-svn: 106549
2010-06-22 16:16:50 +00:00
Anders Carlsson 2e2f4d2e6d Add a new variant of getMangledName that caches the mangling for decls.
llvm-svn: 106547
2010-06-22 16:05:32 +00:00
Anders Carlsson 16d9f1788e Add GlobalDecl::getCanonicalDecl.
llvm-svn: 106546
2010-06-22 16:00:14 +00:00
Douglas Gregor c9ea2d5a67 In C++, allow a declaration of an enum to follow a definition of that
enum as a GNU extension.

llvm-svn: 106540
2010-06-22 14:26:35 +00:00
Argyrios Kyrtzidis 75000b6814 Fix PR7180.
For

void f( a:🅱️:c );

we would cache the tokens "a:🅱️:" but then we would try to annotate them using the range "a::".
Before annotating them with the (invalid) C++ scope spec, set it to the range of "a:🅱️:".

llvm-svn: 106536
2010-06-22 11:30:04 +00:00
Argyrios Kyrtzidis 69da4a8f07 Support emitting/reading function templates to/from PCH.
llvm-svn: 106534
2010-06-22 09:55:07 +00:00
Argyrios Kyrtzidis ae85e2414c -Introduce PCHReader::ReadTemplateArgumentLoc()
-Introduce PCHWriter::AddTemplateArgumentLocInfo()
-Modify PCHWriter::AddTemplateArgumentLoc() to also write TemplateArgumentLoc's TemplateArgument
  and move the existing calls of AddTemplateArgumentLoc() to AddTemplateArgumentLocInfo().

llvm-svn: 106533
2010-06-22 09:54:59 +00:00
Argyrios Kyrtzidis cb6f346873 Make it easier to read/write the template part of FunctionDecl.
Introduce:
-FunctionDecl::getTemplatedKind() which returns an enum signifying what kind of templated
  FunctionDecl it is.
-An overload of FunctionDecl::setFunctionTemplateSpecialization() which accepts arrays of
  TemplateArguments and TemplateArgumentLocs
-A constructor to TemplateArgumentList which accepts an array of TemplateArguments.

llvm-svn: 106532
2010-06-22 09:54:51 +00:00
Zhongxing Xu 4505747979 Add a bunch of stream APIs to SteamChecker.
llvm-svn: 106530
2010-06-22 07:50:21 +00:00
Douglas Gregor ef4a2a2b54 Apply array-to-pointer decay when instantiating a MemberExpr. Fixes
PR7405, patch by Kyle Lippincott!

llvm-svn: 106523
2010-06-22 02:41:05 +00:00
Fariborz Jahanian 469b200321 Per Chris's comment, remove another static (this one
is a static comparator operator).

llvm-svn: 106511
2010-06-22 00:23:08 +00:00
Chris Lattner 3c77a355e0 implement support for -finstrument-functions, patch by Nelson
Elhage!

llvm-svn: 106507
2010-06-22 00:03:40 +00:00
Douglas Gregor 27b98eae80 Alter the internal representation of the condition variable in
if/while/switch/for statements to ensure that walking the children of
these statements actually works. Previously, we stored the condition
variable as a VarDecl. However, StmtIterator isn't able to walk from a
VarDecl to a set of statements, and would (in some circumstances) walk
beyond the end of the list of statements, cause Bad Behavior.

In this change, we've gone back to representing the condition
variables as DeclStmts. While not as memory-efficient as VarDecls, it
greatly simplifies iteration over the children. 

Fixes the remainder of <rdar://problem/8104754>.

llvm-svn: 106504
2010-06-21 23:44:13 +00:00
Fariborz Jahanian c9fec975e6 Avoid using a local static for providing lexical
order of priorotized global object initializations.

llvm-svn: 106503
2010-06-21 23:31:29 +00:00
Douglas Gregor 143d367ecf Zero out a stale pointer
llvm-svn: 106497
2010-06-21 22:46:46 +00:00
Douglas Gregor 9377c8230b When semantic analysis fail to introduce a class or class template,
just skip over the body of the class or class template: it's a
semantic disaster that's likely to cause invariants to break. Fixes
part of <rdar://problem/8104754>.

llvm-svn: 106496
2010-06-21 22:31:09 +00:00
Fariborz Jahanian 9adb2e646c In fragile-abi (32bit mode abi) generate global symbol
objc_category_name_xxx for each category implementation.
(fixes PR7431) patch by Nico Weber.

llvm-svn: 106492
2010-06-21 22:05:18 +00:00
Fariborz Jahanian 89bdd14f2f In supporting init-priority, globals with the same init_priority must be
emitted in the order in which they are seen (still radar 8076356).

llvm-svn: 106485
2010-06-21 21:27:42 +00:00