Implement PR2773, support for __USER_LABEL_PREFIX__

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57127 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a problem reported in PR2766 that makes clang reject old versions
of GCC's headers.  This impacts people that run clang in Tiger systems.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57126 91177308-0d34-0410-b5e6-96231b3b80d8

Found a subtle bug caused by an implicit enum-to-bool conversion (of the TentativeParsingResult enum).
This was the motivation of the following changes:

-'TentativeParsingResult' enum is replaced by a 'TPResult' class that basically encapsulates the enum.
-TPR_true, TPR_false, TPR_ambiguous, and TPR_error enum constants are replaced by TPResult::True(), TPResult::False(), etc. calls that return a TPResult object.
-Also fixed the subtle bug in Parser::isCXXFunctionDeclarator (caught by the above changes as a compilation error).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57125 91177308-0d34-0410-b5e6-96231b3b80d8

Add parsing of the sentinel attribute. Still need to create the attribute.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57121 91177308-0d34-0410-b5e6-96231b3b80d8

Change indentation for a couple of files in the Xcode project.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57120 91177308-0d34-0410-b5e6-96231b3b80d8

Wrap long lines and other minor cleanups, no functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57119 91177308-0d34-0410-b5e6-96231b3b80d8

Remove copyright notice, we decided not to have them.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57118 91177308-0d34-0410-b5e6-96231b3b80d8

Move the TentativeParsingResult enum closer to where it gets used.
No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57115 91177308-0d34-0410-b5e6-96231b3b80d8

Disambiguate between a declaration or an expression, in the 'for-init-statement' part of a 'for' statement.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57112 91177308-0d34-0410-b5e6-96231b3b80d8

Fix Parser::isCXXConditionDeclaration to properly resolve declarations.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57111 91177308-0d34-0410-b5e6-96231b3b80d8

Disambiguate between a declaration or expression for the 'condition' part of a if/switch/while/for statement.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57109 91177308-0d34-0410-b5e6-96231b3b80d8

Consider GNU attributes when doing ambiguity resolution.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57108 91177308-0d34-0410-b5e6-96231b3b80d8

Remove redundant parameter and rename StMgr to StateMgr.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57107 91177308-0d34-0410-b5e6-96231b3b80d8

Add X86 builtin code generation test case.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57104 91177308-0d34-0410-b5e6-96231b3b80d8

Improve C language testing coverage.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57103 91177308-0d34-0410-b5e6-96231b3b80d8

Fix X86 palignr[128] builtins to match LLVM.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57102 91177308-0d34-0410-b5e6-96231b3b80d8

Add some builtins to codegen test case.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57101 91177308-0d34-0410-b5e6-96231b3b80d8

Make VectorType printing less broken.
 - Print size as number of elements times "sizeof(elt type)", not
   perfect but better than just printing the completely wrong type.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57100 91177308-0d34-0410-b5e6-96231b3b80d8

Fix another X86 builtin definitions.
 - vec_set_v4hi had "v4s" in place of "V4s"

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57099 91177308-0d34-0410-b5e6-96231b3b80d8

Fix some X86 builtin definitions.
 - cmp instructions return int
 - storedqu had bad const qualifier
 - pmuldq128 used invalid type code

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57098 91177308-0d34-0410-b5e6-96231b3b80d8

Add -rewrite-macros test case.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57094 91177308-0d34-0410-b5e6-96231b3b80d8

Allow -verify to be used with -rewrite-macros.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57093 91177308-0d34-0410-b5e6-96231b3b80d8

Coverage test for targets.
 - This pushes us over 80% coverage of executable LOC.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57092 91177308-0d34-0410-b5e6-96231b3b80d8

Update VC++ project file

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57090 91177308-0d34-0410-b5e6-96231b3b80d8

Improve codegen coverage tests.
 - Hit debug info generation.
 - Hit both ObjC runtimes.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57088 91177308-0d34-0410-b5e6-96231b3b80d8

Add dummy -ast-dump support for ObjC category implementations.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57087 91177308-0d34-0410-b5e6-96231b3b80d8

Remove old diag that alerted the user to a limitation we no longer have:-)

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57086 91177308-0d34-0410-b5e6-96231b3b80d8

Append the test runs with '&&'.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57085 91177308-0d34-0410-b5e6-96231b3b80d8

Resolve ambiguous C++ statements (C++ 6.8p1).
'ParseTentative.cpp' implements the functionality needed to resolve ambiguous C++ statements, to either a declaration or an expression, by "tentatively parsing" them.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57084 91177308-0d34-0410-b5e6-96231b3b80d8

Create a function, eliminating some redundancy between SynthesizeBlockInitExpr() and SynthesizeBlockLiterals().

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57083 91177308-0d34-0410-b5e6-96231b3b80d8

Finish implementing copy/dispose helpers for imported block decls.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57082 91177308-0d34-0410-b5e6-96231b3b80d8

Add coverage tests of C and Obj-C language features.
 - AST printing, dumping, serialization, codegen.
 - HTML printing.
 - Parser callbacks.

Several of these are XFAIL because they trigger unimplemented code.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57081 91177308-0d34-0410-b5e6-96231b3b80d8

Set exit code properly on "Unexpected program action".

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57080 91177308-0d34-0410-b5e6-96231b3b80d8

Desensitize env-include-paths.c to the directory it is running in.
 - It would probably be better if TestRunner.sh canonicalized this.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57075 91177308-0d34-0410-b5e6-96231b3b80d8

Set svn:ignore on test/{Driver,Coverage}

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57073 91177308-0d34-0410-b5e6-96231b3b80d8

Bug fix, CPATH="" does not add '.' to search path.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57072 91177308-0d34-0410-b5e6-96231b3b80d8

Add test/Driver.
 - env-include-paths.c is XFAIL as it exposed a bug.

Add test/Coverage.
 - For tests which achieve code coverage but don't validate anything.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57070 91177308-0d34-0410-b5e6-96231b3b80d8

De-XFAIL test/Parser/pragma-pack.c

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57069 91177308-0d34-0410-b5e6-96231b3b80d8

switch to using -verify

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57068 91177308-0d34-0410-b5e6-96231b3b80d8

Move the expected-warning lines to a place that clang -verify will pick them
up.  Speculatularly hacktastic, but strangely beautiful?
Daniel, lines 20/21 are rejected, please investigate.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57067 91177308-0d34-0410-b5e6-96231b3b80d8

Add Parser support for #pragma pack
 - Uses Action::ActOnPragmaPack
 - Test case is XFAIL pending verifier fixes.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57066 91177308-0d34-0410-b5e6-96231b3b80d8

Add Preprocessor::RemovePragmaHandler.
 - No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57065 91177308-0d34-0410-b5e6-96231b3b80d8

Add indirection required for byref BlockDeclRefExpr's.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57063 91177308-0d34-0410-b5e6-96231b3b80d8

Handle bookkeeping for imported blocks (in SynthesizeBlockImpl).
This code was "lost" with my recent changes to SynthesizeBlockFunc.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57056 91177308-0d34-0410-b5e6-96231b3b80d8

Add MemRegion.cpp to VS project.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57055 91177308-0d34-0410-b5e6-96231b3b80d8

Cut/paste error...need to use the expression "name" for member references (or other complex expressions that can embed a block pointer type)

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57054 91177308-0d34-0410-b5e6-96231b3b80d8

Clear the map that associated the rewritten block with it's corresponding BlockExpr.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57053 91177308-0d34-0410-b5e6-96231b3b80d8

Moved main control flow functions to bottom of file.
Reworked control flow to:
- rewrite the block expr body "in place".
- used Chris's new rewriter hook "getRewritenText" to "lift" the text for later use.
- finally, we do the block expr text replacement.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57052 91177308-0d34-0410-b5e6-96231b3b80d8

Updated checker build.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57045 91177308-0d34-0410-b5e6-96231b3b80d8

This is a big patch, but the functionality change is small and the rest of the patch consists of deltas due to API changes.

This patch overhauls the "memory region" abstraction that was prototyped (but never really used) as part of the Store.h.  This patch adds MemRegion.h and MemRegion.cpp, which defines the class MemRegion and its subclasses.  This classes serve to define an abstract representation of memory, with regions being layered on other regions to to capture the relationships between fields and variables, variables and the address space they are allocated in, and so on.

The main motivation of this patch is that key parts of the analyzer assumed that all value bindings were to VarDecls.  In the future this won't be the case, and this patch removes lval::DeclVal and replaces it with lval::MemRegionVal.  Now all pieces of the analyzer must reason about abstract memory blocks instead of just variables.

There should be no functionality change from this patch, but it opens the door for significant improvements to the analyzer such as field-sensitivity and object-sensitivity, both which were on hold until the memory abstraction got generalized.

The memory region abstraction also allows type-information to literally be affixed to a memory region.  This will allow the some now redundant logic to be removed from the retain/release checker.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57042 91177308-0d34-0410-b5e6-96231b3b80d8

Reverse the RHSBlock of LogicalOp && and ||

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57041 91177308-0d34-0410-b5e6-96231b3b80d8

add a disclaimer

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57038 91177308-0d34-0410-b5e6-96231b3b80d8

add a new Rewriter::getRewritenText method that returns the text for a range
that includes any edits in the range.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57037 91177308-0d34-0410-b5e6-96231b3b80d8

Remove an old/vacuous if clause.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57036 91177308-0d34-0410-b5e6-96231b3b80d8

More fun & games with the block rewriter.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57028 91177308-0d34-0410-b5e6-96231b3b80d8

Merge postfix attributes on record decls.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57019 91177308-0d34-0410-b5e6-96231b3b80d8

Remove a FIXME.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57015 91177308-0d34-0410-b5e6-96231b3b80d8

Rewrite global block expressions.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57004 91177308-0d34-0410-b5e6-96231b3b80d8

- Add a convenience constructor to Type.
- Many rewriter modifications.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57003 91177308-0d34-0410-b5e6-96231b3b80d8

Rework SynthesizeBlockImpl() to include a constructor.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57001 91177308-0d34-0410-b5e6-96231b3b80d8

Pass postfix attributes to ActOnFields (mismarked a file).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56993 91177308-0d34-0410-b5e6-96231b3b80d8

Pass postfix attributes to ActOnFields.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56992 91177308-0d34-0410-b5e6-96231b3b80d8

Bug fix, ccc was passing -std twice.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56991 91177308-0d34-0410-b5e6-96231b3b80d8

Get the right location to insert the synthesized block literals/functions.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56987 91177308-0d34-0410-b5e6-96231b3b80d8

Add getTypeSpecStartLoc() to VarDecls and FunctionDecls.

This is a temporary solution to help with the block rewriter (though it certainly has general utility).
Once DeclGroup's are implemented, this SourceLocation should be stored with it (since it applies to all the decls).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56985 91177308-0d34-0410-b5e6-96231b3b80d8

Name changes and some cleanup of preamble.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56984 91177308-0d34-0410-b5e6-96231b3b80d8

Add Builtins.def attribute for "can be a constant expression".
 - Enabled for builtins which are always constant expressions
   (__builtin_huge_val*, __builtin_inf*, __builtin_constant_p,
   __builtin_classify_type, __builtin___CFStringMakeConstantString).

Added Builtin::Context::isConstantExpr.
 - Currently overly simply interface which only works for builtins
   whose constantexprness does not depend on their arguments.

CallExpr::isBuiltinConstantExpr now takes an ASTContext argument.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56983 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for format string checking of object-size checking
versions of sprintf and friends.
 - Added FIXME that this mechanism should be generalized.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56962 91177308-0d34-0410-b5e6-96231b3b80d8

Emit error unsupported for break/continue/goto inside Obj-C exception
handling blocks.
 - This has false positives, but at least prevents miscompiles.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56958 91177308-0d34-0410-b5e6-96231b3b80d8

Fix ccc handling of -mmacosx-version-min.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56956 91177308-0d34-0410-b5e6-96231b3b80d8

Changed Sema::CheckForConstantInitializer to allow global block literals.
This commit also includes some name changes in the blocks rewriter (no functionality change).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56955 91177308-0d34-0410-b5e6-96231b3b80d8

(LLVM up) Rename IRBuilder::IsNonNull -> IsNotNull.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56954 91177308-0d34-0410-b5e6-96231b3b80d8

Unbreak build: claim an extra bit for BuiltinID.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56952 91177308-0d34-0410-b5e6-96231b3b80d8

(llvm up) If the target triple is unspecified, automatically set the
OS version part to that of the host on darwin.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56943 91177308-0d34-0410-b5e6-96231b3b80d8

Drop code to validate OS part of target triple on darwin, too fragile.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56941 91177308-0d34-0410-b5e6-96231b3b80d8

Enhance NSError** checking with analogous checking for CFErrorRef*.
Expand checking to include functions, not just methods.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56938 91177308-0d34-0410-b5e6-96231b3b80d8

Added SSE4.1 blend intrinsics

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56936 91177308-0d34-0410-b5e6-96231b3b80d8

Updated checker build.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56916 91177308-0d34-0410-b5e6-96231b3b80d8

Added test case.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56915 91177308-0d34-0410-b5e6-96231b3b80d8

Use LVal::IsLValType(T) instead of checking to see if the type is an "lvalue" type directly.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56912 91177308-0d34-0410-b5e6-96231b3b80d8

Update checker build.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56909 91177308-0d34-0410-b5e6-96231b3b80d8

ccc: Use CCC_NATIVE=1 by default.
 - So far this works fairly well for me for building applications
   using clang as a gcc substitute. If you are using ccc for a
   different purpose and this is a problem, speak up! Note you can
   also use CCC_NATIVE=0 to disable.

 - Also, turn CCC_ECHO off as default.

 - Also, pass through -Wl, to linker.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56904 91177308-0d34-0410-b5e6-96231b3b80d8

NeXT: Update to use CreateRuntimeFunction for the routines it imports.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56902 91177308-0d34-0410-b5e6-96231b3b80d8

Add simple interface for protecting runtime functions from name
collisions.
 - Provide CodeGenModule::CreateRuntimeFunction which guarantees that
   the function it creates will have the provided name in the final
   module. This allows the runtime to have its functions protected
   from declarations of the same name in the source code.

 - One could argue that this is a reason to abuse the llvm::Module
   namespace for dealing with function redeclarations. However, that
   approach seems conceptually flawed to me. This one also happens to
   be somewhat more efficient.

No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56899 91177308-0d34-0410-b5e6-96231b3b80d8

Add a QualType to ConjuredSymbol to represent the type and size of the symbol.

Use this updated interface when invalidating arguments passed by reference; the type of symbol is of the object passed by reference, not the reference itself.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56894 91177308-0d34-0410-b5e6-96231b3b80d8

Support -mmacosx-version-min

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56892 91177308-0d34-0410-b5e6-96231b3b80d8

Set reproducibility back to "Always"

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56891 91177308-0d34-0410-b5e6-96231b3b80d8

ccc: Add support for another batch of OS X linker options, including
-mmacosx-version-min.

One might anticipate that at some point I will just break down and go
through the man page. That seems a little too obvious.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56890 91177308-0d34-0410-b5e6-96231b3b80d8

ccc: Infer action type upfront.
 - More straightforward, e.g. -E should always imply action =
   'preprocess' (I think).
 - Pass another option through for OS X.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56884 91177308-0d34-0410-b5e6-96231b3b80d8

simplify padding, just fold it into the earlier resize.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56880 91177308-0d34-0410-b5e6-96231b3b80d8

fix a potential buffer overrun that Eli noticed

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56879 91177308-0d34-0410-b5e6-96231b3b80d8

Fix help for --suppress-system-warnings

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56878 91177308-0d34-0410-b5e6-96231b3b80d8

Document assumptions that NumericLiteralParser makes with an assertion.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56876 91177308-0d34-0410-b5e6-96231b3b80d8

Handle minor version numbers in __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__
like "10.3.9"

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56873 91177308-0d34-0410-b5e6-96231b3b80d8

Finish handling of -mmacosx-version-min.  If you now do something like:

clang -mmacosx-version-min=10.4.9 ...

you'll end up with a target triple like "i686-apple-darwin8.9".

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56871 91177308-0d34-0410-b5e6-96231b3b80d8

scan-view: Remove some debugging prints.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56864 91177308-0d34-0410-b5e6-96231b3b80d8

Updated checker build.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56863 91177308-0d34-0410-b5e6-96231b3b80d8

Default reproducibility to "Not applicable"

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56860 91177308-0d34-0410-b5e6-96231b3b80d8

Add diagnostic for .{lo,hi,e,o} on odd-sized extended vectors.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56859 91177308-0d34-0410-b5e6-96231b3b80d8

Make "Performance" the default Radar classification for leaks.  "Other" for all others (for now).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56858 91177308-0d34-0410-b5e6-96231b3b80d8