Warn about unused static functions and variables.
This fixes PR1998.

llvm-svn: 49987

deleting dead code, making other code more obvious, and fixing a
bug.  This fixes these (bogus) warnings in release mode:

SemaExprObjC.cpp:383: warning: 'RHSProtoE' may be used uninitialized in this function
SemaExprObjC.cpp:383: warning: 'RHSProtoI' may be used uninitialized in this function

llvm-svn: 49984

llvm-svn: 49980

llvm-svn: 49979

llvm-svn: 49975

llvm-svn: 49973

llvm-svn: 49959

llvm-svn: 49951

llvm-svn: 49944

__builtin_overload

llvm-svn: 49943

llvm-svn: 49942

before.  This allows the HTMLDiagnostic object to retrieve the bug type, bug description, etc.

llvm-svn: 49939

llvm-svn: 49938

llvm-svn: 49934

can decide the policy on how to cache related bugs.  This allows us to
properly to handle warning about multiple leaks in the same location in the
ref count checker (not yet done).

llvm-svn: 49918

compiler warning introduced by a recent patch of mine.

llvm-svn: 49917

llvm-svn: 49914

from registered BugTypes.  This helps with debugging.

Add detection of NULL values in ref count checker; this suppresses false positives.

llvm-svn: 49912

the checker-specific logic of symbolic assumptions.

llvm-svn: 49910

llvm-svn: 49909

llvm-svn: 49907

llvm-svn: 49899

information into the IR type codegen.  This allows a target to codegen the C
'double' type as either double or float.

llvm-svn: 49898

llvm-svn: 49896

llvm-svn: 49895

llvm-svn: 49894

llvm-svn: 49892

depends on the column number of the start of the tab.

llvm-svn: 49891

Shuffled around code in CFRefCount to better pair classes with implementation,
and started adding subclasses of RangedBugReport to handle better diagnostics
for reference count bugs.

llvm-svn: 49889

llvm-svn: 49888

llvm-svn: 49887

llvm-svn: 49886

EmitPathWarning into one method.  We now properly handle emitting warnings
without a PathDiagnosticClient when the warning does not involve a particular
statement.

llvm-svn: 49884

llvm-svn: 49883

Mostly semantic checking in this patch. This is on going
and incomplete.

llvm-svn: 49882

the exit block of the CFG.

llvm-svn: 49880

llvm-svn: 49879

macro expansions.

llvm-svn: 49877

clang.cpp: InitializePreprocessor now makes a copy of the contents of PredefinesBuffer and
  passes it to the preprocessor object.
  
clang.cpp: DriverPreprocessorFactory now calls "InitializePreprocessor" instead of this being done in main().

html::HighlightMacros() now takes a PreprocessorFactory, allowing it to conjure up a new
Preprocessor to highlight macros.

class HTMLDiagnostics now takes a PreprocessorFactory* that it can use for html::HighlightMacros().
Updated clients of HTMLDiagnostics to use this new interface.

llvm-svn: 49875

llvm-svn: 49871