llvm-svn: 117347

covariant/contravariant overrides and implementations, but do so under
control of a new flag (-Wno-objc-covariant-overrides, which yes does cover
contravariance too).

*At least* the covariance cases will probably be enabled by default shortly,
but that's not totally uncontroversial.

llvm-svn: 117346

declarations in !NDEBUG to avoid -Wunused-variable warnings. Patch by
Matt Beaumont-Gay!

llvm-svn: 117345

getCanonicalType() to make sure that the type we got back is actually
canonical. This is the case for most types, which always build a
canonical type when given canonical components. However, some types that
involve expressions in their canonicalization (e.g., array types with
dependent sizes) don't always build canonical types from canonical
components, because there is no such thing as a "canonical"
expression. Therefore, we do this extra mapping to ensure that the
canonical types we store are actually canonical.

llvm-svn: 117344

prologue profiling.

Change the log print statements to elide the thread number, make
some of them only print when IsLogVerbose().

Add a couple of sanity checks for impossible CFA values so backtraces
don't go too far off into the weeds.

llvm-svn: 117343

being generated correctly.

Also added a messy way to single-step through expressions
that I will improve soon.

llvm-svn: 117342

in mid-expression evaluation when we hit a breakpoint/signal work.

llvm-svn: 117341

llvm-svn: 117338

llvm-svn: 117337

Fix lazy symbolication bug in RegionStore involving fields of global variables.  When invalidated, the entire
globals memory space gets assigned a symbolic value, but that value was not being used for lazy symbolication
of fields of globals.  This could result in cases where bogus null dereferences were being reported.

Fixes PR 8440.

llvm-svn: 117336

llvm-svn: 117335

Tweak null dereference checker to give better diagnostics for null dereferences resulting from array accesses.

llvm-svn: 117334

do not double-count the duplicate instructions by counting once from the
beginning and again from the end.  Keep track of where the duplicates from
the beginning ended and don't go past that point when counting duplicates
at the end.  Radar 8589805.

This change causes one of the MC/ARM/simple-fp-encoding tests to produce
different (better!) code without the vmovne instruction being tested.
I changed the test to produce vmovne and vmoveq instructions but moving
between register files in the opposite direction.  That's not quite the same
but predicated versions of those instructions weren't being tested before,
so at least the test coverage is not any worse, just different.

llvm-svn: 117333

instructions separately from the count of non-predicated instructions.  The
instruction count is used in places to determine how many instructions to
copy, predicate, etc. and things get confused if that count includes the
extra cost for microcoded ops.

llvm-svn: 117332

llvm-svn: 117331

llvm-svn: 117330

llvm-svn: 117329

llvm-svn: 117328

llvm-svn: 117327

llvm-svn: 117326

non-trivial copy constructors. // rdar: //8540501.
A test will be added to llvm nightly tests.

llvm-svn: 117324

the existing streamer methods that are endian safe.

llvm-svn: 117323

cannot use tailcall.  PR 8461.

llvm-svn: 117322

llvm-svn: 117321

they can be used outside of the main getTBAAInfo function.

llvm-svn: 117320

llvm-svn: 117318

llvm-svn: 117317

Do not count use of sdisel for single call instruction.

llvm-svn: 117316

llvm-svn: 117315

llvm-svn: 117314

know about to the default APIs for x86 vector operations.

llvm-svn: 117313

llvm-svn: 117312

Add counters to count how many basic blocks are entirely selected by fastisel.

llvm-svn: 117310

llvm-svn: 117309

called. Fixes another aspect of PR8314.

llvm-svn: 117308

Add simple counter to count no. of basic blocks without any line number information. At -O0, these basic block coule cause less than optimial debugging experience.

llvm-svn: 117307

function definition, we should still use a prototype to type-check and
convert the function arguments, if such a prototype exists. Fixes
PR8314.

llvm-svn: 117305

llvm-svn: 117304

llvm-svn: 117303

llvm-svn: 117302