Commit Graph

453 Commits

Author SHA1 Message Date
Serge Guelton 29405c94e6 Fix CGObjCGNU::init bug introduced by r302572
llvm-svn: 302588
2017-05-09 21:19:44 +00:00
Serge Guelton 1d993270b3 Suppress all uses of LLVM_END_WITH_NULL. NFC.
Use variadic templates instead of relying on <cstdarg> + sentinel.

This enforces better type checking and makes code more readable.

Differential revision: https://reviews.llvm.org/D32550

llvm-svn: 302572
2017-05-09 19:31:30 +00:00
Reid Kleckner a0b45f4bfc [IR] Abstract away ArgNo+1 attribute indexing as much as possible
Summary:
Do three things to help with that:
- Add AttributeList::FirstArgIndex, which is an enumerator currently set
  to 1. It allows us to change the indexing scheme with fewer changes.
- Add addParamAttr/removeParamAttr. This just shortens addAttribute call
  sites that would otherwise need to spell out FirstArgIndex.
- Remove some attribute-specific getters and setters from Function that
  take attribute list indices.  Most of these were only used from
  BuildLibCalls, and doesNotAlias was only used to test or set if the
  return value is malloc-like.

I'm happy to split the patch, but I think they are probably easier to
review when taken together.

This patch should be NFC, but it sets the stage to change the indexing
scheme to this, which is more convenient when indexing into an array:
  0: func attrs
  1: retattrs
  2...: arg attrs

Reviewers: chandlerc, pete, javed.absar

Subscribers: david2050, llvm-commits

Differential Revision: https://reviews.llvm.org/D32811

llvm-svn: 302060
2017-05-03 18:17:31 +00:00
Akira Hatanaka ff8534b896 [CodeGen][ObjC] Fix a bug where the type of an ivar wasn't encoded
correctly.

This fixes PR30413.

Patch by David Lobron.

llvm-svn: 297702
2017-03-14 04:00:52 +00:00
John McCall 5ad740756f Promote ConstantInitBuilder to be a public CodeGen API; it's
a generally useful utility for other frontends.  NFC.

llvm-svn: 296806
2017-03-02 20:04:19 +00:00
John McCall dba63a7e5c Clean up CGObjCMac's APIs for deriving class references. NFC.
llvm-svn: 288295
2016-11-30 23:54:50 +00:00
John McCall f00e2c09be Prospective MSVC workaround.
llvm-svn: 288272
2016-11-30 20:46:55 +00:00
John McCall ecee86faa1 Finish adopting ConstantInitBuilder in CGObjCGNU. NFC.
llvm-svn: 288269
2016-11-30 20:19:46 +00:00
John McCall 843dfccdc5 getObjCEncodingForMethodDecl cannot fail. Simplify. NFC.
llvm-svn: 288203
2016-11-29 21:57:00 +00:00
Peter Collingbourne b367c567d9 IRGen: Remove all uses of CreateDefaultAlignedLoad.
Differential Revision: https://reviews.llvm.org/D27157

llvm-svn: 288083
2016-11-28 22:30:21 +00:00
John McCall f1788639c5 Hide the result of building a constant initializer. NFC.
llvm-svn: 288080
2016-11-28 22:18:30 +00:00
John McCall 23c9dc6585 ConstantBuilder -> ConstantInitBuilder for clarity, and
move the member classes up to top level to allow forward
declarations to name them.  NFC.

llvm-svn: 288079
2016-11-28 22:18:27 +00:00
Benjamin Kramer 81cb4b7103 [CodeGen] Pass objects that are expensive to copy by const ref.
No functionality change. Found by clang-tidy's
performance-unnecessary-value-param.

llvm-svn: 287894
2016-11-24 16:01:20 +00:00
John McCall 6c9f1fdb5c Introduce a helper class for building complex constant initializers. NFC.
I've adopted this in most of the places it makes sense, but v-tables
and CGObjCMac will need a second pass.

llvm-svn: 287437
2016-11-19 08:17:24 +00:00
Malcolm Parsons f76f6507c2 Fix Clang-tidy readability-redundant-string-cstr warnings
Reviewers: aaron.ballman, mehdi_amini, dblaikie

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D26206

llvm-svn: 285799
2016-11-02 10:39:27 +00:00
John McCall b92ab1afd5 Refactor call emission to package the function pointer together with
abstract information about the callee.  NFC.

The goal here is to make it easier to recognize indirect calls and
trigger additional logic in certain cases.  That logic will come in
a later patch; in the meantime, I felt that this was a significant
improvement to the code.

llvm-svn: 285258
2016-10-26 23:46:34 +00:00
Mehdi Amini 004b9c7aae Store FileEntry::Filename as a StringRef instead of raw pointer (NFC)
llvm-svn: 283815
2016-10-10 22:52:47 +00:00
Saleem Abdulrasool 7093e21ea5 CodeGen: honour dllstorage on ObjC types
Add support for ObjC types to respect the DLLImport/DLLExport storage
annotations.  This only effects COFF output.  This would allow usage with
clang/C2, but not with clang/LLVM due to hard coded section names.

llvm-svn: 275737
2016-07-17 22:27:44 +00:00
Saleem Abdulrasool a088ad9721 CodeGen: whitespace, formatting cleanups, NFC
Format some code which was oddly formatted.  Use a bit of auto to make the code
more legible.  NFC.

llvm-svn: 275736
2016-07-17 22:27:41 +00:00
Benjamin Kramer 309347385e Use arrays or initializer lists to feed ArrayRefs instead of SmallVector where possible.
No functionality change intended

llvm-svn: 274432
2016-07-02 11:41:41 +00:00
Rafael Espindola c9d336e549 Restructure the propagation of -fPIC/-fPIE.
The PIC and PIE levels are not independent. In fact, if PIE is defined
it is always the same as PIC.

This is clear in the driver where ParsePICArgs returns a PIC level and
a IsPIE boolean. Unfortunately that is currently lost and we pass two
redundant levels down the pipeline.

This patch keeps a bool and a PIC level all the way down to codegen.

llvm-svn: 273566
2016-06-23 15:07:32 +00:00
Benjamin Kramer 0772c42385 Reduce the number of implicit StringRef->std::string conversions by threading StringRef through more APIs.
No functionality change intended.

llvm-svn: 260815
2016-02-13 13:42:54 +00:00
Eugene Zelenko 0a4f3f4373 Fix some Clang-tidy readability-redundant-control-flow warnings; other minor fixes.
Differential revision: http://reviews.llvm.org/D17060

llvm-svn: 260414
2016-02-10 19:11:58 +00:00
Manman Ren a7a8b1f2c0 Use instance_properties instead of properties. NFC.
All current properties are instance properties.

This is the second patch in a series of patches to support class properties
in addition to instance properties in objective-c.

rdar://23891898

llvm-svn: 258824
2016-01-26 18:05:23 +00:00
Samuel Antao 798f11cfb7 Preserve exceptions information during calls code generation.
This patch changes the generation of CGFunctionInfo to contain 
the FunctionProtoType if it is available. This enables the code 
generation for call instructions to look into this type for 
exception information and therefore generate better quality 
IR - it will not create invoke instructions for functions that 
are know not to throw.

llvm-svn: 253926
2015-11-23 22:04:44 +00:00
Tim Northover 756447a67c Watch and TV OS: wire up basic ABI choices
This sets the mostly expected Darwin default ABI options for these two
platforms. Active changes from these defaults for watchOS are in a later patch.

llvm-svn: 251708
2015-10-30 16:30:36 +00:00
David Blaikie aff29d3031 Revert "[opaque pointer type] update for LLVM API change"
This was the wrong direction to take anyway (because ultimately the
GlobalValue needed the pointee type again and /it/ used
PointerType::getElementType eventually anyway)... let's go a different way.

This reverts commit r236161.

llvm-svn: 247586
2015-09-14 18:02:04 +00:00
John McCall 7f416cc426 Compute and preserve alignment more faithfully in IR-generation.
Introduce an Address type to bundle a pointer value with an
alignment.  Introduce APIs on CGBuilderTy to work with Address
values.  Change core APIs on CGF/CGM to traffic in Address where
appropriate.  Require alignments to be non-zero.  Update a ton
of code to compute and propagate alignment information.

As part of this, I've promoted CGBuiltin's EmitPointerWithAlignment
helper function to CGF and made use of it in a number of places in
the expression emitter.

The end result is that we should now be significantly more correct
when performing operations on objects that are locally known to
be under-aligned.  Since alignment is not reliably tracked in the
type system, there are inherent limits to this, but at least we
are no longer confused by standard operations like derived-to-base
conversions and array-to-pointer decay.  I've also fixed a large
number of bugs where we were applying the complete-object alignment
to a pointer instead of the non-virtual alignment, although most of
these were hidden by the very conservative approach we took with
member alignment.

Also, because IRGen now reliably asserts on zero alignments, we
should no longer be subject to an absurd but frustrating recurring
bug where an incomplete type would report a zero alignment and then
we'd naively do a alignmentAtOffset on it and emit code using an
alignment equal to the largest power-of-two factor of the offset.

We should also now be emitting much more aggressive alignment
attributes in the presence of over-alignment.  In particular,
field access now uses alignmentAtOffset instead of min.

Several times in this patch, I had to change the existing
code-generation pattern in order to more effectively use
the Address APIs.  For the most part, this seems to be a strict
improvement, like doing pointer arithmetic with GEPs instead of
ptrtoint.  That said, I've tried very hard to not change semantics,
but it is likely that I've failed in a few places, for which I
apologize.

ABIArgInfo now always carries the assumed alignment of indirect and
indirect byval arguments.  In order to cut down on what was already
a dauntingly large patch, I changed the code to never set align
attributes in the IR on non-byval indirect arguments.  That is,
we still generate code which assumes that indirect arguments have
the given alignment, but we don't express this information to the
backend except where it's semantically required (i.e. on byvals).
This is likely a minor regression for those targets that did provide
this information, but it'll be trivial to add it back in a later
patch.

I partially punted on applying this work to CGBuiltin.  Please
do not add more uses of the CreateDefaultAligned{Load,Store}
APIs; they will be going away eventually.

llvm-svn: 246985
2015-09-08 08:05:57 +00:00
Benjamin Kramer 3204b152b5 Replace push_back(Constructor(foo)) with emplace_back(foo) for non-trivial types
If the type isn't trivially moveable emplace can skip a potentially
expensive move. It also saves a couple of characters.


Call sites were found with the ASTMatcher + some semi-automated cleanup.

memberCallExpr(
    argumentCountIs(1), callee(methodDecl(hasName("push_back"))),
    on(hasType(recordDecl(has(namedDecl(hasName("emplace_back")))))),
    hasArgument(0, bindTemporaryExpr(
                       hasType(recordDecl(hasNonTrivialDestructor())),
                       has(constructExpr()))),
    unless(isInTemplateInstantiation()))

No functional change intended.

llvm-svn: 238601
2015-05-29 19:42:19 +00:00
David Blaikie bf178d3eb7 [opaque pointer type] Pass the explicit call type when creating calls from LazyRuntimeFunctions
The implicit conversion was causing issues for a helper being added that
would take an llvm::Function rather than an llvm::Value to make the
CallInst. Since we'll eventually need to specify the type of the call
explicitly anyway, fix these up to avoid the future ambiguity.

llvm-svn: 237729
2015-05-19 21:31:34 +00:00
David Blaikie 7d9e79249d Fix indentation
llvm-svn: 237631
2015-05-18 22:51:39 +00:00
David Blaikie 43f9bb7371 API update for streamlining of IRBuilder::CreateCall to just use ArrayRef/initializer_list+braced init
llvm-svn: 237625
2015-05-18 22:14:03 +00:00
David Blaikie 881b23402e [opaque pointer type] update for LLVM API change
llvm-svn: 236161
2015-04-29 21:22:47 +00:00
David Blaikie 2e80428dc5 clang-format my last commit
(sorry, keep forgetting that)

llvm-svn: 234129
2015-04-05 22:47:07 +00:00
David Blaikie 1ed728c499 [opaque pointer type] More GEP API migrations
Looks like the VTable code in particular will need some work to pass
around the pointee type explicitly.

llvm-svn: 234128
2015-04-05 22:45:47 +00:00
David Blaikie e3b172afc3 [opaque pointer type] Update for GEP API changes in LLVM
Now the GEP constant utility functions require the type to be explicitly
passed (since eventually the pointer type will be opaque and not convey
the required type information). For now callers can still pass nullptr
(though none were needed here in Clang, which is nice) if
convenienc/necessary, but eventually that will be disallowed as well.

llvm-svn: 233937
2015-04-02 18:55:21 +00:00
Alexander Kornienko 6ee521c7eb Replace size() calls on containers with empty() calls where appropriate. NFC
http://reviews.llvm.org/D7090

Patch by Gábor Horváth!

llvm-svn: 226914
2015-01-23 15:36:10 +00:00
Duncan P. N. Exon Smith fb49491477 IR: Update clang for Metadata/Value split in r223802
Match LLVM API changes from r223802.

llvm-svn: 223803
2014-12-09 18:39:32 +00:00
Reid Kleckner 8cd0079d16 Use the new LLVM_END_WITH_NULL name
llvm-svn: 221217
2014-11-04 01:13:43 +00:00
Craig Topper bf3e32705a Fix some cases where StringRef was being passed by const reference. Remove const from some other StringRefs since its implicitly const already.
llvm-svn: 216825
2014-08-30 16:55:52 +00:00
Alexey Samsonov adc9037b88 Remove the overload of GetAddrOfConstantString method
llvm-svn: 210214
2014-06-04 20:25:57 +00:00
Craig Topper 8a13c4180e [C++11] Use 'nullptr'. CodeGen edition.
llvm-svn: 209272
2014-05-21 05:09:00 +00:00
Rafael Espindola 234405bd0f Update for llvm api change.
llvm-svn: 209077
2014-05-17 21:30:14 +00:00
Rafael Espindola 6172277e9f Update for llvm api change.
llvm-svn: 209074
2014-05-17 19:58:16 +00:00
Rafael Espindola 9750ce7ebd Update for llvm API change.
llvm-svn: 208984
2014-05-16 13:34:28 +00:00
Aaron Ballman d85eff49a3 [C++11] Replacing ObjCCategoryDecl iterators propimpl_begin() and propimpl_end() with iterator_range property_impls(). Updating all of the usages of the iterators with range-based for loops.
llvm-svn: 203930
2014-03-14 15:02:45 +00:00
Aaron Ballman 0f6e64d505 [C++11] Replacing ObjCProtocolDecl iterators protocol_begin() and protocol_end() with iterator_range protocols(). Updating all of the usages of the iterators with range-based for loops.
llvm-svn: 203863
2014-03-13 22:58:06 +00:00
Aaron Ballman a49c5064a1 [C++11] Replacing ObjCInterfaceDecl iterators protocol_begin() and protocol_end() with iterator_range protocols(). Updating all of the usages of the iterators with range-based for loops.
Drive-by fixing some incorrect types where a for loop would be improperly using ObjCInterfaceDecl::protocol_iterator. No functional changes in these cases.

llvm-svn: 203842
2014-03-13 20:29:09 +00:00
Aaron Ballman e8a7dc9889 [C++11] Replacing ObjCContainerDecl iterators classmeth_begin() and classmeth_end() with iterator_range class_methods(). Updating all of the usages of the iterators with range-based for loops.
llvm-svn: 203840
2014-03-13 20:11:06 +00:00
Aaron Ballman f26acce6f7 [C++11] Replacing ObjCContainerDecl iterators instmeth_begin() and instmeth_end() with iterator_range instance_methods(). Updating all of the usages of the iterators with range-based for loops.
llvm-svn: 203839
2014-03-13 19:50:17 +00:00
Aaron Ballman d174edffa0 Renaming the recently-created (r203830) props() range API to properties() for clarity.
llvm-svn: 203835
2014-03-13 19:11:50 +00:00
Aaron Ballman dc4bea4676 [C++11] Replacing ObjCContainerDecl iterators prop_begin() and prop_end() with iterator_range props(). Updating all of the usages of the iterators with range-based for loops.
llvm-svn: 203830
2014-03-13 18:47:37 +00:00
Craig Topper 4f12f10de4 [C++11] Add 'override' keyword to virtual methods that override their base class.
llvm-svn: 203643
2014-03-12 06:41:41 +00:00
Ted Kremenek 090a273b55 Remove dead return and simplify code.
llvm-svn: 203266
2014-03-07 18:53:05 +00:00
Chandler Carruth c80ceea90b [Modules] Update to reflect the move of CallSite into the IR library in
LLVM r202816.

llvm-svn: 202817
2014-03-04 11:02:08 +00:00
Craig Topper a798a9db93 Switch all uses of LLVM_OVERRIDE to just use 'override' directly.
llvm-svn: 202625
2014-03-02 09:32:10 +00:00
Rafael Espindola 554256ca56 Refactor linkage computation in CGObjCMac.cpp.
Before this patch the globals were created with the wrong linkage and patched
afterwards. From the comments it looks like something would complain about
having an internal GV with no initializer. At least in clang the verifier will
only run way after we set the initializer, so that is not a problem.

This patch should be a nop. It just figures out the linkage earlier and
converts the old calls to setLinkage to asserts. The only case where that is
not possible is when we first see a weak import that is then implemented. In
that case we have to change the linkage, but that is the only setLinkage left.

llvm-svn: 202305
2014-02-26 22:25:45 +00:00
Rafael Espindola 3cc5c2df9b Use getPointerSizeInBits.
I introduced this bug in 198815. Thanks for Mark Lacey for noticing.
Unfortunately, I have no idea how to test this code.

llvm-svn: 198891
2014-01-09 21:32:51 +00:00
Rafael Espindola 0d84069e17 Used the DataLayout methods instead of the Module methods.
llvm-svn: 198815
2014-01-09 00:17:51 +00:00
Alp Toker f6a24ce40f Fix a tranche of comment, test and doc typos
llvm-svn: 196510
2013-12-05 16:25:25 +00:00
Alp Toker 272e9bc513 Add heading and remove leftover personal email addresses
clang's attribute support is mature by now so replace Sean's warning and email
address with a standard LLVM copyright heading.

Also remove a personal email address and credit docstring from CGObjCGNU that
shouldn't have been there.

This is in line with the LLVM developer policy introduced in r45410.
Contributors can add themselves to CREDITS.txt while active module owners are
listed in CODE_OWNERS.TXT.

llvm-svn: 195587
2013-11-25 00:40:53 +00:00
Nick Lewycky 5fa40c3b9e No functionality change. Reflow lines that could fit on one line. Break lines
that had 80-column violations. Remove spurious emacs mode markers on .cpp files.

llvm-svn: 191797
2013-10-01 21:51:38 +00:00
Eli Friedman f24bd3bdba Fix GNU ObjC ABI for a message returning a struct.
This allows the ObjFW runtime to correctly implement message forwarding
for messages which return a struct.

Patch by Jonathan Schleifer.

llvm-svn: 187174
2013-07-26 00:53:29 +00:00
Craig Topper fa159c144a Use SmallVectorImpl& instead of SmallVector to avoid repeating small vector size.
llvm-svn: 186284
2013-07-14 16:47:36 +00:00
John McCall 882987f30c Use the actual ABI-determined C calling convention for runtime
calls and declarations.

LLVM has a default CC determined by the target triple.  This is
not always the actual default CC for the ABI we've been asked to
target, and so we sometimes find ourselves annotating all user
functions with an explicit calling convention.  Since these
calling conventions usually agree for the simple set of argument
types passed to most runtime functions, using the LLVM-default CC
in principle has no effect.  However, the LLVM optimizer goes
into histrionics if it sees this kind of formal CC mismatch,
since it has no concept of CC compatibility.  Therefore, if this
module happens to define the "runtime" function, or got LTO'ed
with such a definition, we can miscompile;  so it's quite
important to get this right.

Defining runtime functions locally is quite common in embedded
applications.

llvm-svn: 176286
2013-02-28 19:01:20 +00:00
David Chisnall beb8013095 Improve property metadata generation with the GNUstep runtime.
llvm-svn: 176254
2013-02-28 13:59:29 +00:00
Dmitri Gribenko f857950d39 Remove useless 'llvm::' qualifier from names like StringRef and others that are
brought into 'clang' namespace by clang/Basic/LLVM.h

llvm-svn: 172323
2013-01-12 19:30:44 +00:00
David Chisnall 2ec1b10d8e Enable the new (more C++-like, less broken) EH model when targeting the GNUstep
Objective-C runtime 1.7 or greater.

llvm-svn: 172207
2013-01-11 15:33:01 +00:00
Fariborz Jahanian 1eab052a7f objectiveC++: When throwing c++ exception of
an objectiveC object, use objc_exception_throw
to raise the exception. // rdar://12605907

llvm-svn: 172091
2013-01-10 19:02:56 +00:00
Chandler Carruth ffd5551bc7 Rewrite #includes for llvm/Foo.h to llvm/IR/Foo.h as appropriate to
reflect the migration in r171366.

Re-sort the #include lines to reflect the new paths.

llvm-svn: 171369
2013-01-02 11:45:17 +00:00
David Chisnall 0d75e0600b Reapply r170344, this time without forgetting to commit the header changes.
llvm-svn: 170354
2012-12-17 18:54:24 +00:00
Benjamin Kramer beea120d6e Revert "Added support for new property helpers (GNUstep runtime)."
This reverts commit r170344. Doesn't even compile.

llvm-svn: 170351
2012-12-17 18:02:43 +00:00
David Chisnall e99bc83fa5 Added support for new property helpers (GNUstep runtime).
llvm-svn: 170344
2012-12-17 15:59:29 +00:00
Chandler Carruth 3a02247dc9 Sort all of Clang's files under 'lib', and fix up the broken headers
uncovered.

This required manually correcting all of the incorrect main-module
headers I could find, and running the new llvm/utils/sort_includes.py
script over the files.

I also manually added quite a few missing headers that were uncovered by
shuffling the order or moving headers up to be main-module-headers.

llvm-svn: 169237
2012-12-04 09:13:33 +00:00
Dmitri Gribenko b2aa9234b6 Use empty parens for empty function parameter list instead of '(void)'.
llvm-svn: 168041
2012-11-15 14:28:07 +00:00
Fariborz Jahanian a9d4464baf objective-C blocks: Provide layout map for byref
variables captured in a block. // rdar://12184410

llvm-svn: 167931
2012-11-14 17:15:51 +00:00
John McCall c31d893613 Move some GNUStep-specific code out of CGObjCGNU.
Patch by Jonathan Schleifer.

llvm-svn: 167925
2012-11-14 09:08:34 +00:00
David Chisnall 9a837be2b9 Fix the Objective-C exception rethrow from cleanups (GNU runtimes). Note that
a bug in the inliner still causes the wrong thing to happen at -O2 and above
(PR14116).

llvm-svn: 167534
2012-11-07 16:50:40 +00:00
Eli Friedman 8cbca20a59 Back out 167431+167437+167487; I didn't realize how incomplete our test
coverage of this code is.

llvm-svn: 167495
2012-11-06 22:15:52 +00:00
Eli Friedman 5a56bb83cc Propagate CharUnits into ObjC CodeGen. No intended functional change.
llvm-svn: 167431
2012-11-06 01:51:20 +00:00
Richard Smith 9c6890a792 Simplify: replace getContext().getLangOpts() with just getLangOpts().
llvm-svn: 167261
2012-11-01 22:30:59 +00:00
Fariborz Jahanian 0c58ce9346 objective-C arc/mrr: Patch for the new block variable layout meta-data.
It is currently off (so no tests). This is wip.

llvm-svn: 166892
2012-10-27 21:10:38 +00:00
David Chisnall a5f5941374 GNUstep runtime version default to 1.6, generate correct property attribute
metadata.

llvm-svn: 166023
2012-10-16 15:11:55 +00:00
Micah Villmow dd31ca10ef Move TargetData to DataLayout.
llvm-svn: 165395
2012-10-08 16:25:52 +00:00
David Chisnall 12d8135cd5 Fix transposed optional / required in Objective-C metadata (GNUstep runtime)
Patch by Niels Grewe!

llvm-svn: 162441
2012-08-23 12:17:21 +00:00
John McCall 3deb1ad40c Screw around with ObjCRuntime some more, changing the
diagnostics for bad deployment targets and adding a few
more predicates.  Includes a patch by Jonathan Schleifer
to enable ARC for ObjFW.

llvm-svn: 162252
2012-08-21 02:47:43 +00:00
Eli Friedman dc009da2a8 Don't emit an invoke whose normal destination is a landingpad. Fixes test
regression on test/CodeGenObjC/2008-10-3-EhValue.m on non-Darwin targets.

llvm-svn: 161700
2012-08-10 21:26:17 +00:00
John McCall f253834456 Introduce new queries on ObjCRuntime for how to interpret subscripts
on object pointers and whether pointer arithmetic on object pointers
is supported.  Make ObjFW interpret subscripts as pseudo-objects.
Based on a patch by Jonathan Schleifer.

llvm-svn: 161028
2012-07-31 05:14:30 +00:00
John McCall 775086e67c Add the ObjFW runtime. Patch by Jonathan Schleifer!
llvm-svn: 160102
2012-07-12 02:07:58 +00:00
David Chisnall b601c96892 Rename the GCC Objective-C runtime to gcc from gnu-fragile and the GNUstep
runtime to gnustep from gnu.  Fix EH for the GCC runtime.

llvm-svn: 159684
2012-07-03 20:49:52 +00:00
John McCall 5fb5df9c83 Restructure how the driver communicates information about the
target Objective-C runtime down to the frontend:  break this
down into a single target runtime kind and version, and compute
all the relevant information from that.  This makes it
relatively painless to add support for new runtimes to the
compiler.  Make the new -cc1 flag, -fobjc-runtime=blah-x.y.z,
available at the driver level as a better and more general
alternative to -fgnu-runtime and -fnext-runtime.  This new
concept of an Objective-C runtime also encompasses what we
were previously separating out as the "Objective-C ABI", so
fragile vs. non-fragile runtimes are now really modelled as
different kinds of runtime, paving the way for better overall
differentiation.

As a sort of special case, continue to accept the -cc1 flag
-fobjc-runtime-has-weak, as a sop to PLCompatibilityWeak.

I won't go so far as to say "no functionality change", even
ignoring the new driver flag, but subtle changes in driver
semantics are almost certainly not intended.

llvm-svn: 158793
2012-06-20 06:18:46 +00:00
James Dennett b9199ee5c1 More doxygen/documentation cleanups.
This reduces the number of warnings generated by Doxygen by about 100
(roughly 10%).  Issues addressed:
(1) Primarily, backslash-escaped "@foo" and "#bah" in Doxygen comments
when they're not supposed to be Doxygen commands or links, and
similarly for "<baz>" when it's not intended as as HTML tag;
(2) Changed some \t commands (which don't exist) to \c ("to refer to a
word of code", as the Doxygen manual says);
(3) \precondition becomes \pre;
(4) When touching comments, deleted a couple of spurious spaces in them;
(5) Changed some \n and \r to \\n and \\r;
(6) Fixed one tiny typo: #pragms -> #pragma.

This patch touches documentation/comments only.

llvm-svn: 158422
2012-06-13 22:07:09 +00:00
David Blaikie 40ed29730b Revert Decl's iterators back to pointer value_type rather than reference value_type
In addition, I've made the pointer and reference typedef 'void' rather than T*
just so they can't get misused. I would've omitted them entirely but
std::distance likes them to be there even if it doesn't use them.

This rolls back r155808 and r155869.

Review by Doug Gregor incorporating feedback from Chandler Carruth.

llvm-svn: 158104
2012-06-06 20:45:41 +00:00
David Blaikie 2d7c57ec1d Remove the ref/value inconsistency in filter_decl_iterator.
filter_decl_iterator had a weird mismatch where both op* and op-> returned T*
making it difficult to generalize this filtering behavior into a reusable
library of any kind.

This change errs on the side of value, making op-> return T* and op* return
T&.

(reviewed by Richard Smith)

llvm-svn: 155808
2012-04-30 02:36:29 +00:00
David Chisnall 58464d0fe1 Revert r154321, pending more discussion.
llvm-svn: 154327
2012-04-09 17:25:11 +00:00
David Chisnall 4ec2af2fab Add -fobjc-trace to emit a call before and after each Objective-C message send
for hooking in code flow visualisation applications.  

llvm-svn: 154321
2012-04-09 15:42:15 +00:00
Chandler Carruth c0c0455f55 Teach Clang about PIE compilations. This is the first step of PR12380.
First, this patch cleans up the parsing of the PIC and PIE family of
options in the driver. The existing logic failed to claim arguments all
over the place resulting in kludges that marked the options as unused.
Instead actually walk all of the arguments and claim them properly.

We now treat -f{,no-}{pic,PIC,pie,PIE} as a single set, accepting the
last one on the commandline. Previously there were lots of ordering bugs
that could creep in due to the nature of the parsing. Let me know if
folks would like weird things such as "-fPIE -fno-pic" to turn on PIE,
but disable full PIC. This doesn't make any sense to me, but we could in
theory support it.

Options that seem to have intentional "trump" status (-static, -mkernel,
etc) continue to do so and are commented as such.

Next, a -pie-level flag is threaded into the frontend, rigged to
a language option, and handled preprocessor, setting up the appropriate
defines. We'll now have the correct defines when compiling with -fpie.

The one place outside of the preprocessor that was inspecting the PIC
level (as opposed to the relocation model, which is set and handled
separately, yay!) is in the GNU ObjC runtime. I changed it to exactly
preserve existing behavior. If folks want to change its behavior in the
face of PIE, they can do that in a separate patch.

Essentially the only functionality changed here is the preprocessor
defines and bug-fixes to the argument management.

Tests have been updated and extended to test all of this a bit more
thoroughly.

llvm-svn: 154291
2012-04-08 16:40:35 +00:00
David Chisnall a79b469d73 zext ivar offsets if required (GNU runtimes).
llvm-svn: 154175
2012-04-06 15:39:12 +00:00
Ted Kremenek 669669f8d3 Silence dead store warning, and fix indentation.
llvm-svn: 153986
2012-04-04 00:55:25 +00:00
David Chisnall d663934b62 Add missing bitcast that was breaking Objective-C++ exception typeinfo (GNUstep runtime).
llvm-svn: 153090
2012-03-20 16:25:52 +00:00