llvm-svn: 139278

llvm-svn: 139277

Fix the logic in BasicAliasAnalysis::aliasGEP for comparing GEP's with variable differences so that it actually does something sane. Fixes PR10881.

llvm-svn: 139276

'id' that can be used (only!) via a contextual keyword as the result
type of an Objective-C message send. 'instancetype' then gives the
method a related result type, which we have already been inferring for
a variety of methods (new, alloc, init, self, retain). Addresses
<rdar://problem/9267640>.

llvm-svn: 139275

in order to distinguish the real single step exception from a watchpoint exception
which uses the same exc_type of EXC_BREAKPOINT and exc_code of EXC_I386_SGL.

This is done by checking the debug status register to find out whether the watchpoint
data break event has fired, and, if yes, stuff the data break address into the exception's
exc_sub_code field on the debugserver side for lldb to consume on the other end.

llvm-svn: 139274

"frame select -r" should return an error if you are already at the top of the stack & try to go up or at the bottom and try to go down.

llvm-svn: 139273

More cleanup of the general indexed addressing T2 instructions. Still more to
do, especially for stores.

llvm-svn: 139272

llvm-svn: 139271

Adjust encoding of writeback load/store instructions to better reflect the
way the operand types are represented.

llvm-svn: 139270

filtered.  This happenis when -save-temps is specified. 
<rdar://problem/10088387>

llvm-svn: 139269

Remove the "common" set of instructions shared between ARM and Thumb2 modes.  This is no longer needed now that Thumb2 has its own copy of the STC/LDC instructions.

llvm-svn: 139268

llvm-svn: 139267

llvm-svn: 139266

keyword. We now handle this keyword in HandleIdentifier, making a note
for ourselves when we've seen the __import_module__ keyword so that
the next lexed token can trigger a module import (if needed). This
greatly simplifies Preprocessor::Lex(), and completely erases the 5.5%
-Eonly slowdown Argiris noted when I originally implemented
__import_module__. Big thanks to Argiris for noting that horrible
regression!

llvm-svn: 139265

llvm-svn: 139264

llvm-svn: 139263

llvm-svn: 139262

to meet the requirements of the InputIterator concept.

llvm-svn: 139261

Change diagnoseAddressOfInvalidType() to use an enum to determine what error message to display.  Also, move the function call into on location instead of having it spread among many places in the if/else statements.

llvm-svn: 139260

It broke the self host and clang-x86_64-darwin10-RA.

llvm-svn: 139259

llvm-svn: 139258

Need branch relocation support to distinguish this encoding from the
16-bit Thumb1 encoding w/o the explicit .w suffix. That comes later, though.

llvm-svn: 139257

llvm-svn: 139256

llvm-svn: 139255

The immediate offset of the non-writeback i8 form (encoding T4) allows
negative offsets only. The positive offset form of the encoding is the
LDRT instruction. Immediate offsets in the range [0,255] use encoding T3
instead.

llvm-svn: 139254

ctor-initializer, remember to call the Sema action to generate default
ctor-initializers. What a delightful little miscompile. Fixes PR10578
/ <rdar://problem/9877267>.

llvm-svn: 139253

llvm-svn: 139252

llvm-svn: 139251

Second of a three-patch series aiming to fix MSR/MRS on Cortex-M. This adds predicate checking to the Disassembler.

llvm-svn: 139250

llvm-svn: 139249

llvm-svn: 139248

In some cases such as interpreters using indirectbr, the CFG can be very
complicated, and live range splitting may be forced to insert a large
number of phi-defs.  When that happens, traceSiblingValue can spend a
lot of time zipping around in the CFG looking for defs and reloads.

This patch causes more information to be cached in SibValues, and the
cached values are used to terminate searches early.  This speeds up
spilling by 20x in one interpreter test case.  For more typical code,
this is just a 10% speedup of spilling.

llvm-svn: 139247

(MachThreadList::EnableHardwareWatchpoint()) where the watchpoint is not associated
with a thread and the current thread, if set, is returned, otherwise we return the
first thread.

Plus minor change to RNBRemote::HandlePacket_z() to use the existing macros to check
the validity of break_id/watch_id.

llvm-svn: 139246

Fix atomic load and store on x86 to pass -verify-machineinstrs (and possibly fix some subtle bugs involving passes which check mayStore()).

This isn't exactly ideal, but it is good enough for the moment.

llvm-svn: 139245

llvm-svn: 139244

There is no 16-bit wide encoding, so the .w suffix isn't needed (indeed, isn't
documented as allowed). Also add the missing '!' token on the _UPD
variant.

llvm-svn: 139243

Choose 32-bit vs. 16-bit encoding when there's no .w suffix in post-processing
as match classes are insufficient to handle the context-sensitiveness of
the writeback operand's legality for the 16-bit encodings.

llvm-svn: 139242

llvm-svn: 139240

llvm-svn: 139238

Refactor instprinter and mcdisassembler to take a SubtargetInfo. Add -mattr= handling to llvm-mc. Reviewed by Owen Anderson.

llvm-svn: 139237