The lifetime of a temporary can be extended when it is immediately bound
to a local reference:

  const Value &MyVal = Value("temporary");

In this case, the temporary object's lifetime is extended for the entire
scope of the reference; at the end of the scope it is destroyed.

The analyzer was modeling this improperly in two ways:
- Since we don't model temporary constructors just yet, we create a fake
  temporary region when it comes time to "materialize" a temporary into
  a real object (lvalue). This wasn't taking base casts into account when
  the bindings being materialized was Unknown; now it always respects base
  casts except when the temporary region is itself a pointer.
- When actually destroying the region, the analyzer did not actually load
  from the reference variable -- it was basically destroying the reference
  instead of its referent. Now it does do the load.

This will be more useful whenever we finally start modeling temporaries,
or at least those that get bound to local reference variables.

<rdar://problem/13552274>

llvm-svn: 178697

Modify LLDB to handle DW_FORM_ref_addr attributes for DWARF3 and DWARF4.

llvm-svn: 178696

llvm-svn: 178695

Normally r_info is just a 32 of 64 bit number matching the endian of the rest
of the file. Unfortunately, mips 64 bit little endian is special: The top 32
bits are a little endian number and the following 32 are a big endian one.

llvm-svn: 178694

llvm-svn: 178693

needed for some versions of clang.

llvm-svn: 178692

llvm-svn: 178691

The move / swap members were not correctly taking all of the possible states of the basic_stringbuf into account.  Just rewrote these members.  Test included.  This fixes http://llvm.org/bugs/show_bug.cgi?id=15659.

llvm-svn: 178690

llvm-svn: 178689

Previously some instructions were unintentionally covered twice and
others were not covered at all.

llvm-svn: 178688

As they are relevant on both Mac and iOS.

llvm-svn: 178687

This also allows us to ensure IDC/return null suppression gets triggered in such cases.

llvm-svn: 178686

llvm-svn: 178685

1) Look for the node where the condition expression is live when checking if
it is constrained to true or false.

2) Fix a bug in ProgramState::isNull, which was masking the problem. When
the expression is not a symbol (,which is the case when it is Unknown) return
unconstrained value, instead of value constrained to “false”!
(Thankfully other callers of isNull have not been effected by the bug.)

llvm-svn: 178684

Thanks Jordan!

llvm-svn: 178683

http://lab.llvm.org:8011/builders/clang-x86_64-darwin10-gdb went back green
before it processed the reverted 178663, so it could not have been the culprit.

Revert "Revert 178663."

This reverts commit 4f8a3eb2ce5d4ba422483439e20c8cbb4d953a41.

llvm-svn: 178682

Looks like it broke http://lab.llvm.org:8011/builders/clang-x86_64-darwin10-gdb

Revert "Don't compute a patched/semantic storage class."

This reverts commit 8f187f62cb0487d31bc4afdfcd47e11fe9a51d05.

llvm-svn: 178681

rewriting typedef for a qualified object type
and also when two declarations happen to be on the
same line. // rdar://13562505

llvm-svn: 178680

ELF with support for:

- File headers
- Section headers + data
- Relocations
- Symbols
- Unwind data (only COFF/Win64)

The output format follows a few rules:
- Values are almost always output one per line (as elf-dump/coff-dump already do). - Many values are translated to something readable (like enum names), with the raw value in parentheses.
- Hex numbers are output in uppercase, prefixed with "0x".
- Flags are sorted alphabetically.
- Lists and groups are always delimited.

Example output:
---------- snip ----------
Sections [
  Section {
    Index: 1
    Name: .text (5)
    Type: SHT_PROGBITS (0x1)
    Flags [ (0x6)
      SHF_ALLOC (0x2)
      SHF_EXECINSTR (0x4)
    ]
    Address: 0x0
    Offset: 0x40
    Size: 33
    Link: 0
    Info: 0
    AddressAlignment: 16
    EntrySize: 0
    Relocations [
      0x6 R_386_32 .rodata.str1.1 0x0
      0xB R_386_PC32 puts 0x0
      0x12 R_386_32 .rodata.str1.1 0x0
      0x17 R_386_PC32 puts 0x0
    ]
    SectionData (
      0000: 83EC04C7 04240000 0000E8FC FFFFFFC7  |.....$..........|
      0010: 04240600 0000E8FC FFFFFF31 C083C404  |.$.........1....|
      0020: C3                                   |.|
    )
  }
]
---------- snip ----------

Relocations and symbols can be output standalone or together with the section header as displayed in the example.
This feature set supports all tests in test/MC/COFF and test/MC/ELF (and I suspect all additional tests using elf-dump), making elf-dump and coff-dump deprecated.

Patch by Nico Rieck!

llvm-svn: 178679

Patch by Nico Rieck!

llvm-svn: 178678

Patch by Nico Rieck!

llvm-svn: 178677

Patch by Nico Rieck!

llvm-svn: 178676

llvm-svn: 178675

llvm-svn: 178674

Incorporating review feedback from Bill Schmidt on r178617. No functionality
change intended.

llvm-svn: 178672

Syntactically means the function macro parameter names do not need to use the same
identifiers in order for the definitions to be considered identical.

Syntactic equivalence is a microsoft extension for macro redefinitions and we'll also
use this kind of comparison to check for ambiguous macros coming from modules.

rdar://13562254

llvm-svn: 178671

llvm-svn: 178670

llvm-svn: 178669

smarts so that it doesn't approve of keywords and/or type names when it
knows (based on its flags) that those kinds of corrections are not
wanted.

llvm-svn: 178668

llvm-svn: 178667

Testing for Visual Studio 2010 SP1 or greater before calling the _xgetbv intrinsic.  This also fixes a minor code formatting issue.

llvm-svn: 178666

llvm-svn: 178665

Mesa does not override llvm behavior wrt KILLGT anymore so llvm
has to handle KILLGT on its own.

llvm-svn: 178664

For variables and functions clang used to store two storage classes. The one
"as written" in the code and a patched one, which, for example, propagates
static to the following decls.

This apparently is from the days clang lacked linkage computation. It is now
redundant and this patch removes it.

llvm-svn: 178663

llvm-svn: 178662

Added support to CMake and autoconf for unit tests in clang-tools-extra. A
dummy test exists for now until more meaningful tests can be written.

llvm-svn: 178661

I discussed this with Bill Schmidt on IRC, and it was decided that this is a
safe and reasonable default.

llvm-svn: 178659

llvm-svn: 178658

llvm-svn: 178657

More direct types in PowerPC AltiVec intrinsics.

This patch follows up on work done by Bill Schmidt in r178277,
and replaces most of the remaining uses of VRRC in ISEL DAG patterns.

The resulting .inc files are identical except for comments, so
no change in code generation is expected.

llvm-svn: 178656