the conditions for performing the transform when only the
function declaration is available: no longer allow turning
i32 into i64 for example.  Only allow changing between
pointer types, and between pointer types and integers of
the same size.  For return values ptr -> intptr was already
allowed; I added ptr -> ptr and intptr -> ptr while there.
As shown by a recent objc testcase, changing the way
parameters/return values are passed can be fatal when calling
code written in assembler that directly manipulates call
arguments and return values unless the transform has no
impact on the way they are passed at the codegen level.
While it is possible to imagine an ABI that treats integers
of pointer size differently to pointers, I don't think LLVM
supports any so the transform should now be safe while still
being useful.

llvm-svn: 51834

llvm-svn: 51833

This eliminates a bogus warning identified in the test below.

This fixes <rdar://problem/5968256> clang on xcode: error: incompatible type initializing 'NSObject<XCSelectionSource> *', expected 'id<NSObject,XCSelectionSource>'

llvm-svn: 51832

values, so as to avoid warnings on some platforms.

llvm-svn: 51831

Add some more test cases that demonstrate clang is a bit stricter than GCC. These can be fixed lazily if they become a problem.

llvm-svn: 51830

llvm-svn: 51829

Teach Sema::CheckConditionalOperands() to check for ObjCQualifiedIdType's. This fixes a bogus error.

<rdar://problem/5967036> clang on xcode: error: incompatible operand types ('id<DTOutputStreams>' and 'DTFilterOutputStream *')

llvm-svn: 51828

llvm-svn: 51827

llvm-svn: 51826

TranslationUnit object instead of an ASTContext. By default it calls
Initialize(ASTConstext& Context) (to match with the current interface used by
most ASTConsumers).

Modified the ObjC-Rewriter to use InitializeTU, and to tell the TranslationUnit
to not free its Decls.  This is a workaround for: <rdar://problem/5966749>

llvm-svn: 51825

into the 2.3 release branch.

llvm-svn: 51824

now round-trip through assembly and bitcode.

llvm-svn: 51823

llvm-svn: 51822

llvm-svn: 51821

llvm-svn: 51820

llvm-svn: 51819

llvm-svn: 51818

llvm-svn: 51817

llvm-svn: 51816

Some fancy footwork to accommodate embedded preprocessor directives within an interface.

llvm-svn: 51815

llvm-svn: 51814

we did not truncate the value down to i1 with (x&1).  This caused a problem
when the computation of x was nontrivial, for example, "add i1 1, 1" would 
return 2 instead of 0.

This makes the testcase compile into:

...
  llvm_cbe_t = (((llvm_cbe_r == 0u) + (llvm_cbe_r == 0u))&1);
  llvm_cbe_u = (((unsigned int )(bool )llvm_cbe_t));
...

instead of:

...
  llvm_cbe_t = ((llvm_cbe_r == 0u) + (llvm_cbe_r == 0u));
  llvm_cbe_u = (((unsigned int )(bool )llvm_cbe_t));
...

This fixes a miscompilation of mediabench/adpcm/rawdaudio/rawdaudio and
403.gcc with the CBE, regressions from LLVM 2.2. Tanya, please pull 
this into the release branch.

llvm-svn: 51813

This fix involved tightening up needToScanForQualifiers(), which predated ObjCQualifiedIdType.
It also includes a minor tweak to the code that searches for the beginning of the qualified type. If the AST contained the correct beginning of the declaration (i.e. the beginning of the declaration specifiers), this code would be more robust. Since it doesn't, we apply an adhoc heuristic. Note that DeclSpec contains this info...we just don't propagate it to the AST (at present).

llvm-svn: 51812

Hack RewriteObjC::RewriteObjCStringLiteral() to include the filename in the generated code (replacing any non-alphanumeric characters with "_"). This allows header files to contain ObjCStringLiterals.

llvm-svn: 51811

getSwappedPredicate, from ICmpInst and FCmpInst into common
methods in CmpInst. This allows CmpInsts to be manipulated
generically.

llvm-svn: 51810

llvm-svn: 51809

index for the input pattern in terms of the output pattern. Instead
keep track of how many fixed operands the input pattern actually
has, and have the input matching code pass the output-emitting
function that index value. This simplifies the code, disentangles
variables_ops from the support for predication operations, and
makes variable_ops more robust.

llvm-svn: 51808

llvm-svn: 51807

insertvalue and extractvalue to use constant indices instead of
Value* indices. And begin updating LangRef.html.

There's definately more to come here, but I'm checking this 
basic support in now to make it available to people who are
interested.

llvm-svn: 51806

llvm-svn: 51803

Teach Expr::isLvalue() about ObjC properties. For now, all properties are writable. Added a FIXME for another day.

llvm-svn: 51800

llvm-svn: 51795

llvm-svn: 51794

llvm-svn: 51793

llvm-svn: 51792

llvm-svn: 51791

llvm-svn: 51790

llvm-svn: 51789

llvm-svn: 51788

types so that they end up the correct size.

llvm-svn: 51787