llvm-svn: 112332

llvm-svn: 112331

a constructor.

llvm-svn: 112330

the special values that for ARM would be used with IB or DA modes.  Fall
through and consider materializing a new base address is it would be
profitable.

llvm-svn: 112329

llvm-svn: 112328

breakpoint by FileSpec and line number and exercises some FileSpec APIs.

Also, RUN_STOPPED is a bad assert name, RUN_SUCCEEDED is better.

llvm-svn: 112327

llvm-svn: 112326

Add a prototype of a new peephole optimizing pass that uses LazyValue info to simplify PHIs and select's.
This pass addresses the missed optimizations from PR2581 and PR4420.

llvm-svn: 112325

debugger to insert self-contained functions for use by
expressions (mainly for error-checking).

In order to support detecting whether a crash occurred
in one of these helpers -- currently our preferred way
of reporting that an error-check failed -- added a bit
of support for getting the extent of a JITted function
in addition to just its base.

llvm-svn: 112324

llvm-svn: 112323

all the other LDM/STM instructions.  This fixes asm printer crashes when
compiling with -O0.  I've changed one of the NEON tests (vst3.ll) to run
with -O0 to check this in the future.

Prior to this change VLDM/VSTM used addressing mode #5, but not really.
The offset field was used to hold a count of the number of registers being
loaded or stored, and the AM5 opcode field was expanded to specify the IA
or DB mode, instead of the standard ADD/SUB specifier.  Much of the backend
was not aware of these special cases.  The crashes occured when rewriting
a frameindex caused the AM5 offset field to be changed so that it did not
have a valid submode.  I don't know exactly what changed to expose this now.
Maybe we've never done much with -O0 and NEON.  Regardless, there's no longer
any reason to keep a count of the VLDM/VSTM registers, so we can use
addressing mode #4 and clean things up in a lot of places.

llvm-svn: 112322

llvm-svn: 112321

llvm-svn: 112320

llvm-svn: 112319

llvm-svn: 112318

llvm-svn: 112317

llvm-svn: 112316

llvm-svn: 112315

A = shl x, 42
...
B = lshr ..., 38

which can be transformed into:
A = shl x, 4
...

iff we can prove that the would-be-shifted-in bits
are already zero.  This eliminates two shifts in the testcase
and allows eliminate of the whole i128 chain in the real example.

llvm-svn: 112314

Added checking of (x == x) and (x != x) to IdempotentOperationChecker and updated test cases flagged by it.

llvm-svn: 112313

Enabled relaxed LiveVariables analysis in the path-sensitive engine to increase the coverage of bugs. Primarily affects IdempotentOperationChecker.
- Migrated a temporarily separated test back to its original file (bug has been fixed, null-deref-ps-temp.c -> null-deref-ps.c)
- Changed SymbolManager to use relaxed LiveVariables
- Updated several test cases that the IdempotentOperationChecker class now flags
- Added test case to test relaxed LiveVariables use by the IdempotentOperationChecker

llvm-svn: 112312

llvm-svn: 112311

llvm-svn: 112310

llvm-svn: 112309

o Fixed a crasher when getting it via SBTarget.GetExecutable().

>>> filespec = target.GetExecutable()
Segmentation fault

o And renamed SBFileSpec::GetFileName() to GetFilename() to be consistent with FileSpec::GetFilename().

llvm-svn: 112308

llvm-svn: 112307

Add alternate version of LiveVariables analysis that does not kill liveness at assignments. This 'relaxed' liveness is useful in path sensitive analysis for situations where the resulting extended liveness allows us to find some bugs.
- Added killAtAssign flag to LiveVariables
- Added relaxed LiveVariables to AnalysisContext with an accessor

llvm-svn: 112306

llvm-svn: 112305

framework, which is good at ripping through bitfield
operations.  This generalize a bunch of the existing
xforms that instcombine does, such as 
  (x << c) >> c -> and
to handle intermediate logical nodes.  This is useful for
ripping up the "promote to large integer" code produced by
SRoA.

llvm-svn: 112304

llvm-svn: 112303

llvm-svn: 112302

swaps on the variable list, value object list, and disassembly. This avoids
us having to try and update frame indexes and other things that were getting
out of sync.

llvm-svn: 112301

llvm-svn: 112300

adjacent operands at once, instead of just two at a time.

llvm-svn: 112299

Improve wording of diagnostic complaining about a non-void* pointer as the first parameter of operator delete

llvm-svn: 112298

Patch by Cameron Esfahani!

llvm-svn: 112297

Implement CXCursor support for walking C++ base specifiers.  This includes adding the API hooks clang_isVirtualBase() and clang_getCXXAccessSpecifier() to query properties of the base specifier.

Implements <rdar://problem/8274883>.

llvm-svn: 112296

llvm-svn: 112295

member function you're typing in overrides another virtual function,
this fills in a (qualified!) call to that virtual function to make
such delegation easy.

llvm-svn: 112294

llvm-svn: 112293