benchmarks hitting an assertion.
Adds LiveIntervalUnion::collectInterferingVRegs.
Fixes "late spilling" by checking for any unspillable live vregs among
all physReg aliases.

llvm-svn: 118701

main thread from having to wait on it (which was causing some I/O 
hangs).

llvm-svn: 118700

llvm-svn: 118699

instructions instead of hard-coding operand numbers.

llvm-svn: 118698

llvm-svn: 118697

their comments.

llvm-svn: 118696

    @unittest2.skip("rdar://problem/8648070 'expression *bar_ptr' seg faults")

It has been fixed by r118672.

llvm-svn: 118695

nodes can be used in loops, this could result in infinite looping
if there is no recursion limit, so add such a limit.  It is also
used for the SelectInst case because in theory there could be an
infinite loop there too if the basic block is unreachable.

llvm-svn: 118694

llvm-svn: 118693

it, and to be consistent.

llvm-svn: 118692

llvm-svn: 118691

llvm-svn: 118690

other class extensions. // rdar://7629420

llvm-svn: 118689

double quoting of ObjC symbol names in constant pool entries.

rdar://8652107

llvm-svn: 118688

arbitrary memory into a helper function, and adjust some comments.

llvm-svn: 118687

indivudal members holding the same data, to clarify the relationship
between NonLocalDepResult and NonLocalDepEntry.

llvm-svn: 118686

Store the flags needed to disable optimizations and to emit LLVM-IR depending on
the version of llvm-gcc used.

llvm-svn: 118684

llvm-svn: 118683

llvm-svn: 118682

llvm-svn: 118681

The simplifications performed here never create new instructions, they
only return existing instructions (or a constant), and so are always a
win.  In theory they should transform (for example)
  %z = and i32 %x, %y
  %s = select i1 %cond, i32 %y, i32 %z
  %r = and i32 %x, %s
into
  %r = and i32 %x, y
but in practice they get into a fight with instcombine, and lose.
Unfortunately instcombine does a poor job in this case.  Nonetheless
I'm committing this transform to make it easier to discuss what to
do to make peace with instcombine.

llvm-svn: 118679

Win32/Process.inc: [PR8527] Process::FileDescriptorIsDisplayed(fd) should not check by FILE_TYPE_CHAR. It must be better to check it with Console API.

The special file "NUL" is FILE_TYPE_CHAR with GetFileType(h). It was treated as display device and discarding output to NUL had failed. (eg. opt -o nul)

llvm-svn: 118678

of InputData.

llvm-svn: 118677

@property declaration to the autogenerated methods.  I'm uncertain
whether this should apply to attributes in general, but these are
a reasonable core.

Implements rdar://problem/8617301

llvm-svn: 118676

using new/delete and OwningPtrs.  After memory profiling Clang, I witnessed periodic leaks of these
objects; digging deeper into the code, it was clear that our management of these objects was a mess.  The ownership rules were murky at best, and not always followed.  Worse, there are plenty of error paths where we could screw up.

This patch introduces AttributeList::Factory, which is a factory class that creates AttributeList
objects and then blows them away all at once.  While conceptually simple, most of the changes in
this patch just have to do with migrating over to the new interface.  Most of the changes have resulted in some nice simplifications.

This new strategy currently holds on to all AttributeList objects during the lifetime of the Parser
object.  This is easily tunable.  If we desire to have more bound the lifetime of AttributeList
objects more precisely, we can have the AttributeList::Factory object (in Parser) push/pop its
underlying allocator as we enter/leave key methods in the Parser.  This means that we get
simple memory management while still having the ability to finely control memory use if necessary.

Note that because AttributeList objects are now BumpPtrAllocated, we may reduce malloc() traffic
in many large files with attributes.

This fixes the leak reported in: <rdar://problem/8650003>

llvm-svn: 118675

Fixes rdar://8649963.

llvm-svn: 118674

llvm-svn: 118673

comes from by using a virtual function to provide it from the Module's
SymbolVendor by default. This allows the DWARF parser, when being used to
parse DWARF in .o files with a parent DWARF + debug map parser, to get its
type list from the DWARF + debug map parser so when we go and find full 
definitions for types (that might come from other .o files), we can use the
type list from the debug map parser. Otherwise we ended up mixing clang types
from one .o file (say a const pointer to a forward declaration "class A") with
the a full type from another .o file. This causes expression parsing, when 
copying the clang types from those parsed by the DWARF parser into the 
expression AST, to fail -- for good reason. Now all types are created in the
same list.

Also added host support for crash description strings that can be set before
doing a piece of work. On MacOSX, this ties in with CrashReporter support
that allows a string to be dispalyed when the app crashes and allows 
LLDB.framework to print a description string in the crash log. Right now this
is hookup up the the CommandInterpreter::HandleCommand() where each command
notes that it is about to be executed, so if we crash while trying to do this
command, we should be able to see the command that caused LLDB to exit. For
all other platforms, this is a nop.

llvm-svn: 118672

VariantKind marker to indicate the additional information necessary. Update
MC to handle the new Kinds. rdar://8647623

llvm-svn: 118671

Fixes PR7915.

llvm-svn: 118670

Recover from the latter and fail early for the former.  Fixes PR8022.

llvm-svn: 118669

llvm-svn: 118668

llvm-svn: 118667

ignoring the show_address parameter.

llvm-svn: 118666

order to reduce ((x<<30)>>24) to x<<6, check the
correct bits.  PR 8547.

llvm-svn: 118665

llvm-svn: 118662

llvm-svn: 118661

chaining and simplify FunctionAttrs' GetModRefBehavior logic.

llvm-svn: 118660

unknown pragmas should just be passed through to the .i file.

llvm-svn: 118659

a positive value into a signed bitfield of the exact width of
the value.

llvm-svn: 118657