BugVisitor DiagnosticPieces.

When checkers create a DiagnosticPieceEvent, they can supply an extra
string, which will be concatenated with the call exit message for every
call on the stack between the diagnostic event and the final bug report.
(This is a simple version, which could be/will be further enhanced.)

For example, this is used in Malloc checker to produce the ",
which allocated memory" in the following example:

static char *malloc_wrapper() { // 2. Entered call from 'use'
    return malloc(12);    // 3. Memory is allocated
}

void use() {
    char *v;
    v = malloc_wrapper(); // 1. Calling 'malloc_wrappers'
        // 4. Returning from 'malloc_wrapper', which allocated memory
}                         // 5. Memory is never released; potential
memory leak

llvm-svn: 152837

llvm-svn: 152835

llvm-svn: 152830

llvm-svn: 152826

llvm-svn: 152823

-When printing location avoid printing the filename if it is
same as the main file, not just if it has '.h' extension.
-Make sure we allocate enough bytes for storing as string a
huge line number.

llvm-svn: 152821

to avoid a stack overflow with extreme cases.

Part of rdar://10941790.

llvm-svn: 152820

This allows us to handle extreme cases of chained binary operators without causing stack
overflow.
The binary operators that are handled with the data recursive evaluator are
comma, logical, or operators that have operands with integral or enumeration type.

Part of rdar://10941790.

llvm-svn: 152819

llvm-svn: 152818

for @protocol expression into their own section.

llvm-svn: 152808

the external source to complete the Decl if it
hasn't been completed already.

This fixes a crash in LLDB.

llvm-svn: 152807

llvm-svn: 152806

[asan] update asan docs: mention CMake problem and to explain the status of MacOS 10.7 and 32-bit Linux

llvm-svn: 152805

Patch thanks to Nikola Smiljanic

llvm-svn: 152801

The functions memccpy, strdup, strndup, strlcat, and strlcpy should also have
object size checking support. Of course, this is only good if the C library also
supports these functions.
<rdar://problem/10528974>

llvm-svn: 152789

Patch by Silviu Baranga!

llvm-svn: 152788

Err on the side of brevity and rename (while providing aliases for the original
name) -Wbool-conversions, -Wint-conversions, and -Wvector-conversions for
consistency with constant, literal, string, and sign conversion warnings. And
name the diagnostic groups explicitly while I'm here rather than rewriting the
string in the groups and sema td files.

Curiously, vector-conversion is not under -Wconversion. Perhaps it should be.

llvm-svn: 152776

breaking bootstrap. No test yet: it's quite hard to tickle the failure case.
The specific testcase for this wouldn't be useful for testing anything more
general than a reintroduction of this precise bug in any case.

llvm-svn: 152775

Original commit message:

Provide -Wnull-conversion separately from -Wconversion.

Like GCC, provide a NULL conversion to non-pointer conversion as a separate
flag, on by default. GCC's flag is "conversion-null" which we provide for
cross compatibility, but in the interests of consistency (with
-Wint-conversion, -Wbool-conversion, etc) the canonical Clang flag is called
-Wnull-conversion.

Patch by Lubos Lunak.
Review feedback by myself, Chandler Carruth, and Chad Rosier.

llvm-svn: 152774

computing expr source...", it breaks bootstrap.

llvm-svn: 152772

getDeclSpecContextFromDeclaratorContext.

llvm-svn: 152766

Abbreviated commit message:
Provide -Wnull-conversion separately from -Wconversion.

llvm-svn: 152765

locations for diagnostics we're not going to emit, and don't track the subobject
designator outside C++11 (since we're not going to use it anyway).

This seems to give about a 0.5% speedup on 403.gcc/combine.c, but the results
were sufficiently noisy that I can't reject the null hypothesis.

llvm-svn: 152761

llvm-svn: 152758

llvm-svn: 152757

-fno-inline-functions.

This behaves much like -fno-inline in gcc, but based on a discussion with 
Daniel it was decided that -fno-inline-functions should subsume -fno-inline.
Please speak up if you object.  The -fno-inline flag remains ignored.
Final part of rdar://10972766

llvm-svn: 152754

and metadata for "non-lazy" class and categories.

llvm-svn: 152751

scoped enumeration members. Later uses of an enumeration temploid as a nested
name specifier should cause its instantiation. Plus some groundwork for
explicit specialization of member enumerations of class templates.

llvm-svn: 152750

(Why are we keeping all of this code around anyway? Say the word and I'll
start swinging the delete hammer.)

llvm-svn: 152749

Like GCC, provide a NULL conversion to non-pointer conversion as a separate
flag, on by default. GCC's flag is "conversion-null" which we provide for
cross compatibility, but in the interests of consistency (with
-Wint-conversion, -Wbool-conversion, etc) the canonical Clang flag is called
-Wnull-conversion.

Patch by Lubos Lunak.
Review feedback by myself, Chandler Carruth, and Chad Rosier.

llvm-svn: 152745

for misc. objc meta-data.

llvm-svn: 152743

llvm-svn: 152742

llvm-svn: 152740

qualified name lookups into transparent contexts.

llvm-svn: 152739

llvm-svn: 152738

in the callee.

llvm-svn: 152734

Add the _class_ro_t.reserved field for 64bit targets.
// rdar://11040024

llvm-svn: 152731

MaterializeTemporaryExpr.

llvm-svn: 152730

llvm-svn: 152729

llvm-svn: 152725