dominator information.

llvm-svn: 128452

llvm-svn: 128451

llvm-svn: 128450

The instruction to be rematerialized may not be the one defining the register
that is being spilled. The traceSiblingValue() function sees through sibling
copies to find the remat candidate.

llvm-svn: 128449

llvm-svn: 128446

llvm-svn: 128445

Optimizing (zext A + zext B) * C, to (VMULL A, C) + (VMULL B, C) during                                                                                                                                    
isel lowering to fold the zero-extend's and take advantage of no-stall
back to back vmul + vmla:
 vmull q0, d4, d6
 vmlal q0, d5, d6
is faster than
 vaddl q0, d4, d5
 vmovl q1, d6                                                                                                                                                                             
 vmul  q0, q0, q1

This allows us to vmull + vmlal for:
    f = vmull_u8(   vget_high_u8(s), c);
    f = vmlal_u8(f, vget_low_u8(s),  c);

rdar://9197392

llvm-svn: 128444

Add workaround for Sema issue found in <rdar://problem/9188004>, which leads to an assertion failure in the uninitialized variables analysis.  The problem is that Sema isn't properly registering a variable in a DeclContext (which -Wuninitialized relies on), but
my expertise on the template instantiation logic isn't good enough to fix this problem for real.  This patch worksaround the
problem in -Wuninitialized, but we should fix it for real later.

llvm-svn: 128443

the 'image dump symtab' command.  The number of symbols to disassemble can be
specified by the '-n Num' option, or unlimited if not specified.

llvm-svn: 128442

llvm-svn: 128441

llvm-svn: 128440

Don't do the checks of Sema::DiagnoseEqualityWithExtraParens() on type-dependent expressions. Fixes rdar://9027658.

llvm-svn: 128437

an executable test to llvm test suite.
// rdar://9070460.

llvm-svn: 128435

becomes reachable when before it wasn't). Check to make sure that it's not null
before trying to use it.

llvm-svn: 128434

llvm-svn: 128433

llvm-svn: 128432

integrated-as.

llvm-svn: 128431

on Darwin.

llvm-svn: 128430

llvm-svn: 128429

all the symbols for an executable image and to issue the lldb 'disassemble' command
on each symbol.  The initial version just dumps the symbol table.

llvm-svn: 128428

llvm-svn: 128427

llvm-svn: 128426

llvm-svn: 128425

llvm-svn: 128421

Add comments to ThumbDisassemblerCore.h for recent change made for t2PLD disassembly.

llvm-svn: 128417

otool(1), this time with the needed fix for case sensitive file systems :) .
This is a work in progress as the interface for producing symbolic operands is
not done.  But a hacked prototype using information from the object file's
relocation entiries and replacing immediate operands with MCExpr's has been
shown to work with no changes to the instrucion printer.  These APIs will be
moved into a dynamic library at some point.

llvm-svn: 128415

llvm-svn: 128413

// rdar://9181463

llvm-svn: 128410

Fix bugs in various ARM istruction emulation functions:

EmulateVPUSH
   - Fix context.
   - Fix bug calculating register numbers.

EmulateVPOP
   - Fix context.
   - Fix bug calculating register numbers.

EmulateShiftIMM
   - Fix bug in assert statement.

EmulateLDMDA
   - Fix context.

EmulateLDMDB
   - Fix context.

EmulateLDMIB
   - Fix context.     

EmulateSTM
   - Fix bug calculating lowest_set_bit.     

EmulateSTMDA
   - Fix context.
   - Fix bug calculating lowest_set_bit.

EmulateSTMDB
   - Fix context.
   - Fix bug calculating lowest_set_bit.

EmulateSTMIB
   - FIx context     

EmulateLDRSBImmed
   - Fix test to match correction in corrected manual 

llvm-svn: 128409

llvm-svn: 128406

llvm-svn: 128405

llvm-svn: 128404

llvm-svn: 128403

was refusing to open the file.)

llvm-svn: 128402

llvm-svn: 128401

llvm-svn: 128400

Add some debug output when -instcombine uses RAUW. This can make debug output for those cases much clearer since without this it only showed that the original instruction was removed, not what it was replaced with.

llvm-svn: 128399

llvm-svn: 128398

The reassignment phase was able to move interference with a higher spill weight,
but it didn't happen very often and it was fairly expensive.

The existing interference eviction picks up the slack.

llvm-svn: 128397

functionality changed.

llvm-svn: 128396