llvm-svn: 146354

llvm-svn: 146345

Remove some remants of the old palign pattern fragment that were still hanging around. Also remove a cast from inside getShuffleVPERM2X128Immediate and getShuffleVPERMILPImmediate since the only caller already had done the cast.

llvm-svn: 146344

[analyzer] CStringChecker should not rely on the analyzer generating UndefOrUnknown value when it cannot reason about the expression.

We are now often generating expressions even if the solver is not known to be able to simplify it. This is another cleanup of the existing code, where the rest of the analyzer and checkers should not base their logic on knowing ahead of the time what the solver can reason about. 

In this case, CStringChecker is performing a check for overflow of 'left+right' operation. The overflow can be checked with either 'maxVal-left' or 'maxVal-right'. Previously, the decision was based on whether the expresion evaluated to undef or not. With this patch, we check if one of the arguments is a constant, in which case we know that 'maxVal-const' is easily simplified. (Another option is to use canReasonAbout() method of the solver here, however, it's currently is protected.)

This patch also contains 2 small bug fixes:
 - swap the order of operators inside SValBuilder::makeGenericVal.
 - handle a case when AddeVal is unknown in GenericTaintChecker::getPointedToSymbol.

llvm-svn: 146343

Silences valgrind warnings about uninitalized alignment values.

llvm-svn: 146342

Fixed bug 9905: Failure in code selection for llvm intrinsics sqrt/exp (fix for FSQRT, FSIN, FCOS, FPOWI, FPOW, FLOG, FLOG2, FLOG10, FEXP, FEXP2). Third attempt: simplified checks in test for armv7-apple-darwin11.

llvm-svn: 146341

llvm-svn: 146340

llvm/CMakeLists.txt: Fix LLVM_LIT_TOOLS_DIR since r143728. Cygwin does not need optional tools dir. MSVC and mingw may need one.

llvm-svn: 146339

of r146334!

llvm-svn: 146338

Forgot to commit the Header files. 
Rename generateUnknownVal -> makeGenericVal.

llvm-svn: 146337

Fix a bug in SimpleSValBuilder, where we should swap lhs and rhs when calling generateUnknownVal(), - the function which creates symbolic expressions when data is tainted. The issue is not visible when we only create the expressions for taint since all expressions are commutative from taint perspective.

Refactor SymExpr::symbol_iterator::expand() to use a switch instead of a chain of ifs.

llvm-svn: 146336

llvm-svn: 146335

the only parts of TM that depends on CodeGen headers with it.

llvm-svn: 146334

such as what VCS information is attached.

llvm-svn: 146333

llvm-svn: 146332

[fast-isel] SelectInsertValue seems to be causing miscompiles for ARM.  Disable while I investigate.

llvm-svn: 146331

<rdar://problem/10561406>

Stopped the SymbolFileDWARF::FindFunctions (...) from always calculating
the line table entry for all functions that were found. This can slow down
the expression parser if it ends up finding a bunch of matches. Fixed the 
places that were relying on the line table entry being filled in.

Discovered a recursive stack blowout that happened when "main" didn't have
line info for it and there was no line information for "main"

llvm-svn: 146330

llvm-svn: 146329

Fixed bug 9905: Failure in code selection for llvm intrinsics sqrt/exp (fix for
FSQRT, FSIN, FCOS, FPOWI, FPOW, FLOG, FLOG2, FLOG10, FEXP, FEXP2). Second
attempt.

llvm-svn: 146328

llvm-svn: 146327

and offer fixits when there is a mismatch.

llvm-svn: 146326

commit-ish. Funny thing, they have a command designed for this. ;]

llvm-svn: 146325

revision and git commit data extracted. This will be used in the Clang
CMake build to avoid trying to re-detect the information.

llvm-svn: 146324

in CMake a bit more handy. Previously we would get such charming
versions as the following for revision NNNN and commit-ish XXXXX:
  3.1svnsvn-rNNNN
  3.1svngit-svn-rNNNN
  3.1svngit-svn-XXXXX

The mechanism selecting betwene the latter two was particularly odd, and
didn't work with all of the ways git-svn repos are set up apparently. It
also misses an important point -- both the revision *and* the git commit
might be relevant when working on a local branch some distance from
mainline. The new logic does several things:

1) It strips the redundant initial 'svn'.
2) It always looks for a git-svn revision number base, and when found
   includes it in the version.
3) If the git commit-ish for the current HEAD is not exactly that
   revision number, it is also included.

The resulting strings should roughly be:
  3.1svn-rNNNN
  3.1git-svn-rNNNN
  3.1git-svn-rNNNN-XXXXX

Suggestions on formatting etc always welcome. =] I've only looked at the
LLVM version string here, not Clang's (yet).

Note that the commit-ish reported is *not* terribly accurate. It updates
when 'cmake' is run, not when the binary is built. Still, it may be
better than nothing, especially if people have fairly long-lived git
repos and branches. This is not a new limitation, just didn't want
anyone to be surprised.

llvm-svn: 146323

Fixed bug 9905: Failure in code selection for llvm intrinsics sqrt/exp (fix for FSQRT, FSIN, FCOS, FPOWI, FPOW, FLOG, FLOG2, FLOG10, FEXP, FEXP2). Second attempt.

llvm-svn: 146322

llvm-svn: 146321

Move some print stmts to the test method, where they get printed only if the test is qualified to run
under the current test driver run configuration.

llvm-svn: 146320

Make CR spill and restore use a reserved register. These operations cannot use the register scavenger because the scavenger can only scavenge one register and frame-index elimination may have already grabbed it.

llvm-svn: 146318

expression parser would never try getting typed
variables from the target.

llvm-svn: 146317

llvm-svn: 146316

- Even if a frame isn't present, we always try
  to use FindGlobalVariable to find variables.
  Instead of using frame->TrackGlobalVariable()
  to promote the VariableSP into a ValueObject,
  we now simply use ValueObjectVariable.

- When requesting the value of a variable, we
  allow returning of the "live version" of the
  variable -- that is, the variable in the
  target instead of a pointer to its freeze
  dried version in LLDB -- even if there is no
  process present.

llvm-svn: 146315

The split point is picked such that the newly created water has the same
alignment as the function. This makes the island suitable for constant
pool entries with potentially higher alignment.

This also fixes an issue where the basic block was split one instruction
too late, causing nonconvergence of the algorithm.

<rdar://problem/10550705>

There is still an issue with correctly packing differently aligned
entries in the island.

llvm-svn: 146314

llvm-svn: 146313

a null pointer after getCursorDecl() is called. rdar://10298421.

llvm-svn: 146312

does. The _GLOBAL_OFFSET_TABLE_ is still magical in that we get a R_386_GOTPC,
but it doesn't change the immediate in the same way as when the expression
has no right hand side symbol.

llvm-svn: 146311

An assertion was firing when parsing types due to trying to complete parent
class decl contenxt types too often.

Also, relax where "dsymutil" binary can come from in the Makefile.rules.

llvm-svn: 146310

hard to ensure it doesn't get invalidated out from under us.  Instead look it up from the ThreadID
and StackID when asked for it.
<rdar://problem/10554409>

llvm-svn: 146309

and then continue using it. rdar://10359140.

llvm-svn: 146308

under ARC. Fixes <rdar://problem/10530209>.

llvm-svn: 146307

compilation of some translation units of SPEC's 445.gobmk by ~4%, and does not
seem to cause a measurable slowdown in other cases.

llvm-svn: 146306