retain/releases performed via [... release] and CFRetain(). The former are
no-ops in GC. The checker already handled this, but now we emit nice diagnostics
to the user telling them that these are no-ops.

llvm-svn: 64937

We now emit:

t.m:6:15: warning: field width should have type 'int', but argument has type 'unsigned int'
  printf(STR, (unsigned) 1, 1);
         ^    ~~~~~~~~~~~~
t.m:3:18: note: instantiated from:
#define STR "abc%*ddef"
                 ^

which has the correct location in the string literal in the note line.

llvm-svn: 64936

objc gc type attributes.

llvm-svn: 64935

llvm-svn: 64934

it needs cleaning.

llvm-svn: 64932

and escaped newlines don't throw off the offset computation.

On this testcase:
  printf("abc\
def"
         "%*d", (unsigned) 1, 1);

Before:
t.m:5:5: warning: field width should have type 'int', but argument has type 'unsigned int'
def"
    ^

after:
t.m:6:12: warning: field width should have type 'int', but argument has type 'unsigned int'
         "%*d", (unsigned) 1, 1);
           ^    ~~~~~~~~~~~~

llvm-svn: 64930

llvm-svn: 64929

llvm-svn: 64928

llvm-svn: 64927

here.  Since we only do the transform if there is
one use, strip off any such users in the hope of
making the transform fire more often.

llvm-svn: 64926

This make warn-weak-field.m to fail (subject of
a followup patch). 
attr-objc-gc.m no passes.

llvm-svn: 64925

First step, handle diagnostics in StringLiteral's that are due to token pasting.

For example, we now handle:
  id str2 = @"foo" 
            "bar"
           @"baz"
           " b\0larg";  // expected-warning {{literal contains NUL character}}

Correctly:

test/SemaObjC/exprs.m:17:15: warning: CFString literal contains NUL character
           " b\0larg";  // expected-warning {{literal contains NUL character}}
           ~~~^~~~~~~

There are several other related issues still to be done.

llvm-svn: 64924

llvm-svn: 64923

us whether there was an error in trying to parse a type-name (type-id
in C++). This allows propagation of errors further in the compiler,
suppressing more bogus error messages.

llvm-svn: 64922

Revise comment. Comparing pointer values in 'Range' wasn't the performance issue I thought it was, but it is still worth ordering Range objects by their APSInt values.

llvm-svn: 64921

llvm-svn: 64920

Add an unavailable __tg_promote function to attract incorrect uses of type-generic macros, rom Howard Hinnant.

llvm-svn: 64919

trip count value when the original loop iteration condition is
signed and the canonical induction variable won't undergo signed
overflow. This isn't required for correctness; it just preserves
more information about original loop iteration values.

Add a getTruncateOrSignExtend method to ScalarEvolution,
following getTruncateOrZeroExtend.

llvm-svn: 64918

llvm-svn: 64917

llvm-svn: 64916

llvm-svn: 64915

that has not been JIT'd yet, the callee is put on a list of pending functions
to JIT.  The call is directed through a stub, which is updated with the address
of the function after it has been JIT'd.  A new interface for allocating and
updating empty stubs is provided.

Add support for removing the ModuleProvider the JIT was created with, which
would otherwise invalidate the JIT's PassManager, which is initialized with the
ModuleProvider's Module.

Add support under a new ExecutionEngine flag for emitting the infomration 
necessary to update Function and GlobalVariable stubs after JITing them, by
recording the address of the stub and the name of the GlobalValue.  This allows
code to be copied from one address space to another, where libraries may live
at different virtual addresses, and have the stubs updated with their new
correct target addresses.

llvm-svn: 64906

llvm-svn: 64905

llvm-svn: 64904

llvm-svn: 64903

any named parameters, e.g., this is accepted in C:

  void f(...) __attribute__((overloadable));

although this would be rejected:

  void f(...);

To do this, moved the checking of the "ellipsis without any named
arguments" condition from the parser into Sema (where it belongs anyway).

llvm-svn: 64902

so it shows up in -ast-dump.

llvm-svn: 64901

Sema::ParseObjCStringLiteral.

llvm-svn: 64900

llvm-svn: 64899

stuff behind a private static function.

llvm-svn: 64898

to do in this area, since there are other places that reference
FunctionDecls.

Don't allow "overloadable" functions (in C) to be declared without a
prototype.

llvm-svn: 64897

llvm-svn: 64896

it faster in the common case when NSConstantString is around.

llvm-svn: 64895

llvm-svn: 64894

llvm-svn: 64893

the various PPTokens that are pasted together to make it.  In the course
of working on this, I discovered ParseObjCStringLiteral which needs some
work.  I'll tackle it next.

llvm-svn: 64892

llvm-svn: 64891

  When comparing if one Range is "less" than another, compare the actual APSInt
  numeric values instead of their pointer addresses. This ensures that the
  ImmutableSet in RangeSet always has a consistent ordering between Ranges. This
  is critical for generating the same digest/hash for the contents of the sets.
  This was a serious performance bug because it would often cause state caching
  to be disabled along complicated paths.
  
Along the way:
 - Put Range and RangeSet in the "anonymous namespace" and mark them hidden

llvm-svn: 64890

Note that one test attr-objc-gc.m fails. I will fix this
after removing these attributes from the Decl nodes.

llvm-svn: 64889

llvm-svn: 64888