For floating point equality check, we now ignore parentheses.  e.g.:
(x) == x  is the treated the same as x == x.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43448 91177308-0d34-0410-b5e6-96231b3b80d8

For checking for floating point comparison using == or !=, we now suppress
errors for cases such as "x == x".

Added test case to test this feature.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43447 91177308-0d34-0410-b5e6-96231b3b80d8

Address Chris's comments.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43445 91177308-0d34-0410-b5e6-96231b3b80d8

Fix logic error.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43443 91177308-0d34-0410-b5e6-96231b3b80d8

when checking for type equality, ignore typedefs.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43441 91177308-0d34-0410-b5e6-96231b3b80d8

improve error recovery handling broken 'then' or 'else' stmts in
if statements.  This implements Sema/if-empty-body.c:f3, silencing
a bogus secondary warning.  It also improve the location info for
the nullstmts created for recovery purposes.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43440 91177308-0d34-0410-b5e6-96231b3b80d8

Add (partial) support for @encode.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43439 91177308-0d34-0410-b5e6-96231b3b80d8

The callers of ParseStructDeclaration are not expecting it to
eat the terminating ;.  Fix one place where it did, allowing this
to compile without error:

struct x {
 int a;
 union {
  int b;
  float c;
 };

 int d;
};

This reduces diagnostics on PR1750 from 33 to 27.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43437 91177308-0d34-0410-b5e6-96231b3b80d8

casting to void is ok for structs (C99 6.5.4p2), this fixes
one bogus error on PR1750.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43436 91177308-0d34-0410-b5e6-96231b3b80d8

Add prototype info for __builtin_memcpy, reducing #diagnostics from 37 to 34 on
PR1750

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43435 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a parser bug on labeled inline asm stmts, allowing us
to parse stuff like:

asm volatile("1:  rex64/fxrstor (%[fx])\n\t"
       "2:\n"
       ".section .fixup,\"ax\"\n"
       "3:  movl $-1,%[err]\n"
       "    jmp  2b\n"
       ".previous\n"
       ".section __ex_table,\"a\"\n"
       "   .align 8\n"
       "   .quad  1b,3b\n"
       ".previous"
       : [err] "=r" (err)
       : [fx] "cdaSDb" (fx), "m" (*fx), "0" (0));

This reduces # diagnostics on PR1750 from 49 to 37.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43434 91177308-0d34-0410-b5e6-96231b3b80d8

Implement *skeletal* support for representing GNU inline asm stmts in the AST,
resolving a crash on a .i file in PR1750.  We now generate 49 errors on the
.i file in that bug.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43433 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a major bug in the Type::getAs*Type methods: they didn't strip off
typeof(type) and typeof(expr) correctly.  Now provide a single point of
contact (Type::getDesugaredType) for doing the shallow stripping we need.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43432 91177308-0d34-0410-b5e6-96231b3b80d8

Generate code for __builtin_classify_type.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43429 91177308-0d34-0410-b5e6-96231b3b80d8

Add BuiltinType::Char_S to Type::isCharType

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43428 91177308-0d34-0410-b5e6-96231b3b80d8

Implemented serialization for TypedefType.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43423 91177308-0d34-0410-b5e6-96231b3b80d8

Implemented serialization of FunctionTypeProto.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43419 91177308-0d34-0410-b5e6-96231b3b80d8

Implemented serialization of FunctionTypeNoProto.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43418 91177308-0d34-0410-b5e6-96231b3b80d8

Implemented serialization for VectorType.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43417 91177308-0d34-0410-b5e6-96231b3b80d8

More work on type serialization: added support for serializing BuiltinTypes.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43414 91177308-0d34-0410-b5e6-96231b3b80d8

Path to synthesize 'instance' size field of _objc_class metadata.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43409 91177308-0d34-0410-b5e6-96231b3b80d8

Completed serialization of ConstantArrayTypes (now that APInt serialization is in place).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43407 91177308-0d34-0410-b5e6-96231b3b80d8

Start rewriting ObjC interfaces. As a start, we comment out all the methods. This involved refining how the parser/AST passes/manages SourceLocations for ObjcMethodDecl's.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43404 91177308-0d34-0410-b5e6-96231b3b80d8

This patch allows synthesis generation of ivar offset for legacy objective-c @implementation
decl without an @interface decl.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43403 91177308-0d34-0410-b5e6-96231b3b80d8

Added skeleton implementation of serialization for types (not complete).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43397 91177308-0d34-0410-b5e6-96231b3b80d8

Patch to synthesize computation of Ivar offset in rewritten c file.
Thanks to Steve N. to point out using of offsetof for this.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43391 91177308-0d34-0410-b5e6-96231b3b80d8

Codegen union member references.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43390 91177308-0d34-0410-b5e6-96231b3b80d8

Handle non LValue base expressions.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43387 91177308-0d34-0410-b5e6-96231b3b80d8

Code gen static initializer.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43386 91177308-0d34-0410-b5e6-96231b3b80d8

Codegen array initializers.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43385 91177308-0d34-0410-b5e6-96231b3b80d8

Codegen global array initializers.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43383 91177308-0d34-0410-b5e6-96231b3b80d8

Pretty printing for ivar list of an interface block.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43382 91177308-0d34-0410-b5e6-96231b3b80d8

Disambiguated variable name to comply with VC++'s archaic variable scoping rules.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43371 91177308-0d34-0410-b5e6-96231b3b80d8

Updated VC++ build system

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43370 91177308-0d34-0410-b5e6-96231b3b80d8

Modified StmtIterator to now include visiting the initialization expression for EnumConstantDecls.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43366 91177308-0d34-0410-b5e6-96231b3b80d8

Fix  "strbuf += stufflen;" crash.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43365 91177308-0d34-0410-b5e6-96231b3b80d8

Document ConvertNewType() method and make it a private method.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43363 91177308-0d34-0410-b5e6-96231b3b80d8

Added DeclSerialization.cpp to XCode project.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43362 91177308-0d34-0410-b5e6-96231b3b80d8

Added skeleton for Decl serialization.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43361 91177308-0d34-0410-b5e6-96231b3b80d8

Refactored several meta data for reusability.
Changed the entire rewrite of metadata to write to std::string
object instead of stdout.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43360 91177308-0d34-0410-b5e6-96231b3b80d8

Cache llvm::Type through PATypeHolder.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43355 91177308-0d34-0410-b5e6-96231b3b80d8

changed #include of Serialization.h to SerializationFwd.h to reduce
compilation time.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43354 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a recovery bug Fariborz and I noticed yesterday.  We were producing:

method.c:4:3: error: use of undeclared identifier 'BADIDENT'
        &BADIDENT, 0
         ^
method.c:5:2: error: expected '}'
};
 ^
method.c:3:14: error: to match this '{'
struct S A = {
             ^

now we only produce:

method.c:4:3: error: use of undeclared identifier 'BADIDENT'
        &BADIDENT, 0
         ^

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43349 91177308-0d34-0410-b5e6-96231b3b80d8

simplify change.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43348 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a bug steve noticed when handling nested rewrites.  We now turn this:

    NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];

into:

    NSAutoreleasePool * pool = objc_msgSend(objc_msgSend(objc_getClass("NSAutoreleasePool"), sel_getUid("alloc")), sel_getUid("init"));

instead of:

    NSAutoreleasePool * pool = objc_msgSend(objc_msgSend(objc_getClass("NSAutoreleasePool"), sel_getUid("alloc")), sel_getUid("init"))utoreleasePool"), sel_getUid("alloc")) init];

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43347 91177308-0d34-0410-b5e6-96231b3b80d8

Convert one type of metadata to use std::string instead of
printf as an example.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43346 91177308-0d34-0410-b5e6-96231b3b80d8

Added SourceLocation.cpp to XCode project.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43344 91177308-0d34-0410-b5e6-96231b3b80d8

Implemented serialization of SourceLocation and SourceRange objects.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43343 91177308-0d34-0410-b5e6-96231b3b80d8

Added constness to accessors in CompoundStmt.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43342 91177308-0d34-0410-b5e6-96231b3b80d8

Add a new ChooseExpr::isConditionTrue method to unify
some code.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43322 91177308-0d34-0410-b5e6-96231b3b80d8

Refactored RewriteObjcMethodsMetaData to better rewrite
instance/class methods metadata.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43320 91177308-0d34-0410-b5e6-96231b3b80d8

Added accessors to CompoundStmt to retrieve the source locations for the
left and right bracket.  This is useful for serialization.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43318 91177308-0d34-0410-b5e6-96231b3b80d8

Remove unused #includes

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43317 91177308-0d34-0410-b5e6-96231b3b80d8

More work on translating message expressions.

Still to do:

- Chris will fix a bug in the rewriting engine for nested stmts. For example, the following:

    NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];

tranlates to:

    NSAutoreleasePool * pool = objc_msgSend(objc_msgSend(objc_getClass("NSAutoreleasePool"), sel_getUid("alloc")), sel_getUid("init"))utoreleasePool"), sel_getUid("alloc")) init];

...which is correct, except there is garbage after sel_getUid("init"). This is because the rewriter isn't updating the extent of the containing message expression.

- Do the crazy cast thang.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43316 91177308-0d34-0410-b5e6-96231b3b80d8

Handle
  foo()->a = 42;

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43315 91177308-0d34-0410-b5e6-96231b3b80d8

Remove explicit use of size of known structs in metadata generation.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43313 91177308-0d34-0410-b5e6-96231b3b80d8

Couple of minor changes. 1) Metaclass metadata also has a reference to
protocol meta-data (unlike what documentation says). 2) Include objc.h so,
we can compile the generated metadata with both gcc and clang.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43311 91177308-0d34-0410-b5e6-96231b3b80d8

Move RecordOrganizer into CodeGenTypes.cpp

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43310 91177308-0d34-0410-b5e6-96231b3b80d8

Refactord instance and class metadata emission. Refactored protocols metadata emission.
Implemented emission of category metadata,

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43308 91177308-0d34-0410-b5e6-96231b3b80d8

Modified current clients of Bitcode-Object serialization to use the
new split-header file configuration (Serialize.h and Deserialize.h)
now in place in the core LLVM repository.

Removed unneeded SerializeTrait specializations for enums in
TokenKinds.h

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43306 91177308-0d34-0410-b5e6-96231b3b80d8

Handle non-constant initializers.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43301 91177308-0d34-0410-b5e6-96231b3b80d8

Visit CompoundLiteralExpr and InitListExpr

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43300 91177308-0d34-0410-b5e6-96231b3b80d8

Fix some long lines, move code around into logical groups.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43299 91177308-0d34-0410-b5e6-96231b3b80d8

Use Ted's new mutable child iterators to update the tree as we rewrite it.
This will make nested subexprs work.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43296 91177308-0d34-0410-b5e6-96231b3b80d8

Modified operator* for StmtIterator to return Stmt*& instead of Stmt*.
This permits in-place replacement of the original AST statements.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43295 91177308-0d34-0410-b5e6-96231b3b80d8

Incorporate some feedback from Chris...

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43285 91177308-0d34-0410-b5e6-96231b3b80d8

Constify methods and reuse RecordOrganizer object.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43284 91177308-0d34-0410-b5e6-96231b3b80d8

check base type.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43283 91177308-0d34-0410-b5e6-96231b3b80d8

Add notes.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43282 91177308-0d34-0410-b5e6-96231b3b80d8

Use isUnionType() predicate.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43281 91177308-0d34-0410-b5e6-96231b3b80d8

untabify

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43280 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed a strange construct, please review.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43278 91177308-0d34-0410-b5e6-96231b3b80d8

Silenced a VC++ warning.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43277 91177308-0d34-0410-b5e6-96231b3b80d8

Add some plumbing to rewrite message expressions (still under construction).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43274 91177308-0d34-0410-b5e6-96231b3b80d8

Fix typo.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43269 91177308-0d34-0410-b5e6-96231b3b80d8

Handle nested structs.
typdef struct A { int i; struct A *next; } A

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43268 91177308-0d34-0410-b5e6-96231b3b80d8

Implemented serialization for IdentifierInfo and IdentifierTable.
Updated serialization test code in the driver to test serialization of
these types.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43266 91177308-0d34-0410-b5e6-96231b3b80d8

Handle simple struct member expr.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43258 91177308-0d34-0410-b5e6-96231b3b80d8

- Add rewrite rule for @class.
- Add setter/getter to ObjcClassDecl.
- Predefined key runtime functions.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43257 91177308-0d34-0410-b5e6-96231b3b80d8

Patch to complete metadata generation for each implemented class.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43255 91177308-0d34-0410-b5e6-96231b3b80d8

Begin struct layout work.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43236 91177308-0d34-0410-b5e6-96231b3b80d8

Patch for initialization of class's Meta-class metadata.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43235 91177308-0d34-0410-b5e6-96231b3b80d8

This patch generates protocol metadata and all its sub-metadata.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43233 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a crash on test/Sema/invalid-decl.c

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43188 91177308-0d34-0410-b5e6-96231b3b80d8

Silenced a VC++ warning.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43179 91177308-0d34-0410-b5e6-96231b3b80d8

add NL at end of file

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43178 91177308-0d34-0410-b5e6-96231b3b80d8

rewrite of metadata for implemented instance methods.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43159 91177308-0d34-0410-b5e6-96231b3b80d8

Include a simple test case for the previous commit...

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43158 91177308-0d34-0410-b5e6-96231b3b80d8

Fix the previous (short lived:-) FIXME.

I didn't realize that GCC considers this a hard error (I thought it was built-in).

Since it's not, we should simply emit an error.

[dylan:~/llvm/tools/clang] admin% cc -c trivial.m
trivial.m:6: error: cannot find interface declaration for 'NSConstantString'

[administrators-powerbook59:~/llvm/tools/clang] admin% ../../Debug/bin/clang trivial.m
trivial.m:6:16: error: cannot find interface declaration for 'NSConstantString'
NSString *s = @"123";
               ^
1 diagnostic generated.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43157 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed DeclStmt::child_begin() to actually create an iterator that
visits its decls, rather than just creating an "end()" iterator.

Fixed child_end() for statements and expressions to use
child_iterator() to create the end() iterator, rather than just
returning NULL.

Fixed bug in StmtIterator where we did not correctly detect if we had
marched off the end of the ScopedDecls.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43156 91177308-0d34-0410-b5e6-96231b3b80d8

Check for Nullness of value built in GetObjcProtoType.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43155 91177308-0d34-0410-b5e6-96231b3b80d8

Minor grammar fix.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43154 91177308-0d34-0410-b5e6-96231b3b80d8

Add a FIXME to an assert.
Change a dyn_cast_or_null back to cast (which is more efficient).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43152 91177308-0d34-0410-b5e6-96231b3b80d8

Patch to rewrite ivar tables metadata for classes defined.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43151 91177308-0d34-0410-b5e6-96231b3b80d8

remove dead #include

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43149 91177308-0d34-0410-b5e6-96231b3b80d8

First patch toward rewriting of objective-c's meta data.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43143 91177308-0d34-0410-b5e6-96231b3b80d8

Tweak a recent fix to UsualArithmeticConversions (made by Chris - r43113). The benefit of this tweak is it guarantees the entire routine operates on unqualified types (which I believe is a bit clearer).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43142 91177308-0d34-0410-b5e6-96231b3b80d8

Added StmtIterator.cpp and StmtIterator.h to the XCode project.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43139 91177308-0d34-0410-b5e6-96231b3b80d8

Refactored StmtIterator into classes StmtIteratorBase (non-templated)
and StmtIteratorImpl (templated), which StmtIterator and
ConstStmtIterator now succintly subclass.

Implemented iteration over the initializers in DeclStmts.  This is not
thoroughly tested, so there may be bugs.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43138 91177308-0d34-0410-b5e6-96231b3b80d8

Replaced virtual method call to child_begin() in child_end() by
directly inlining its logic.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43137 91177308-0d34-0410-b5e6-96231b3b80d8