dominator information even though dominators were previously computed.

Patch by Nick Sumner.

llvm-svn: 138449

llvm-svn: 138448

Moved the test code for Python commands out of the test case for aliases, into its own dedicated test case (one fill was still lurking in the old folder)

llvm-svn: 138446

Add the predicate operand to the instructions. Update the back end
accordingly where the instructions are used. Restrict the SP operands
to actually only be SP, as otherwise these break assembly parsing for the
normal instruction variants.

llvm-svn: 138445

Moved the test code for Python commands out of the test case for aliases, into its own dedicated test case

llvm-svn: 138444

Be stricter in enforcing IT instruction predicate values, so that we don't end up trying to print out an illegal predicate.

llvm-svn: 138443

llvm-svn: 138442

llvm-svn: 138441

llvm-svn: 138437

Reset FirstID (first diagnostic's file ID) to allow for invocations of the VerifyDiagnosticsClient on several input files.

llvm-svn: 138434

variable sized alloca.

llvm-svn: 138433

[analyzer] Fix a Heisenbug concerning object lifetimes with a hack. Hopefully a better fix coming soon. See comment for more details.

llvm-svn: 138432

[analyzer] Reapply 138390 "Clean up unused bits of CFRefCount", reverted in 138405. Ended up unrelated to any problems.

llvm-svn: 138431

[analyzer] Fix potential crasher with RAII. No functionality change. (No test because this particular circumstance requires an impossible series of events, but this is future-proofing.)

llvm-svn: 138430

llvm-svn: 138428

Break 256-bit vector int add/sub/mul into two 128-bit operations to avoid costly scalarization. Fixes PR10711.

llvm-svn: 138427

[analyzer] Reapply 138382 and 138388 (reverted in 138419 and 138420). The issue seems to have been with the uninitialized variable fixed in 138424; a fix for another Heisencrasher coming soon.

llvm-svn: 138426

llvm-svn: 138425

llvm-svn: 138424

llvm-svn: 138423

llvm-svn: 138422

llvm-svn: 138421

Revert "[analyzer] Cleanup: Move temporary declarations of CFRefCount variables closer to their uses. No functionality change."

This reverts commit d02b4af7bd6ca4a743c7074d64e205d718aa221d.

llvm-svn: 138420

Revert "[analyzer] Make CFRefBug and CFRefReportVisitor not dependent on CFRefCount. Unfortunately, CFRefReport still is. No functionality change."

This reverts commit e3fb7e428b7ba0d5d902dfe3f165d70e09b03a15.

llvm-svn: 138419

After talking with John making this the case for all of these is
the right way to go.

Fixes rdar://9804564 and PR10414

llvm-svn: 138418

[analyzer] MacOSKeychainAPIChecker: Add reasoning about functions which MIGHT deallocate the memory region allocated with SecKeychain APIs. Specifically, when the buffer is passed to CFStringCreateWithBytesNoCopy along with a custom deallocator, which might potentially correctly release the memory.

llvm-svn: 138417

A value of -1 at a call site tells the personality function that this call isn't
handled by the current function. Since the ResumeInsts are converted to calls to
_Unwind_SjLj_Resume, add a (volatile) store of -1 to its 'call site'.

llvm-svn: 138416

[analyzer] MacOSKeychainAPIChecker: Retrieve the memory region which we are tracking even when it's no longer a SymbolicRegion, for example, when it is cast to char*.

llvm-svn: 138415

llvm-svn: 138414

llvm-svn: 138413

// rdar://9362887.

llvm-svn: 138412

  <i32 3, i32 2, i32 8, i32 11, i32 3, i32 6, i32 12, i32 15>
generate:
  <i32 3, i32 2, i32 8, i32 11, i32 7, i32 6, i32 12, i32 15>

llvm-svn: 138411

handled SCC's of dead code, or simply having false negatives by overly suppressing warnings.

WIP.

llvm-svn: 138410

CFG: record set of C++ 'try' dispatch blocks, which could be of interest to various analyses (e.g., reachability).

llvm-svn: 138409

llvm-svn: 138408

llvm-svn: 138407

This is not necessarily the first or dominating use of the EH values. The IR
breaks if it's not. So replace the specific value in the instruction with the
new value.

llvm-svn: 138406

This reverts commit 6886a92640f5bffc972f67c0a1f302d6c6e7c322.

llvm-svn: 138405

llvm-svn: 138404

llvm-svn: 138403