Miscellaneous shuffle lowering cleanup. No functional changes. Primarily converting the indexing loops to unsigned to be consistent across functions.

llvm-svn: 147430

Make CanXFormVExtractWithShuffleIntoLoad reject loads with multiple uses. Also make it return false if there's not even a load at all. This makes the code better match the code in DAGCombiner that it tries to match. These two changes prevent some cases where vector_shuffles were making it to instruction selection and causing the older shuffle selection code to be triggered. Also needed to fix a bad pattern that this change exposed. This is the first step towards getting rid of the old shuffle selection support. No test cases yet because there's no way to tell whether a shuffle was handled in the legalize stage or at instruction selection.

llvm-svn: 147428

build. This didn't show up in the CMake build because the CMake build
for the unittests is rather poorly factored.

This probably isn't the correct fix. This should be a bitcode reader
unittest not a VMCore unittest. I'll move it and clean various parts of
the unittest up in a follow-up patch, but I wanted to unbreak the bots.

llvm-svn: 147427

Optimize the sequence blend(sign_extend(x)) to blend(shl(x)) since SSE blend instructions only look at the highest bit.

llvm-svn: 147426

PR11677.

llvm-svn: 147425

llvm-svn: 147424

calls setVisibility/setLinkage.

No functionality change.

llvm-svn: 147423

used anywhere.

llvm-svn: 147422

llvm-svn: 147421

ObjCProtocolDecl proper source-range information.

llvm-svn: 147420

Eliminate the ForwardDecl/InitiallyForwardDecl bits from ObjCProtocolDecl. They are no longer needed

llvm-svn: 147419

llvm-svn: 147418

multiple, disjoint modules. There is far too much duplicating with the
ObjCInterfaceDecl case here, which I'll eliminate shortly.

llvm-svn: 147417

llvm-svn: 147416

ObjCProtocolDecl modules forward declarations properly.

llvm-svn: 147415

Don't bother rewriting an Objective-C class or protocol declaration to the module file when we've merely added a definition

llvm-svn: 147414

longer needed now that we aren't back-patching ObjCProtocolDecls.

llvm-svn: 147413

forward declarations and definitions of an Objective-C protocol are
represented within a single chain of ObjCProtocolDecls.

llvm-svn: 147412

llvm-svn: 147411

for Objective-C protocols, including:
  - Using the first declaration as the canonical declaration
  - Using the definition as the primary DeclContext
  - Making sure that all declarations have a pointer to the definition
  data, and that we know which declaration is the definition
  - Serialization support for redeclaration chains and for adding
  definitions to already-serialized declarations.

However, note that we're not taking advantage of much of this code
yet, because we're still re-using ObjCProtocolDecls.

llvm-svn: 147410

Fix sfence, lfence, mfence, and clflush to be able to be selected when AVX is enabled. Fix monitor and mwait to require SSE3 or AVX, previously they worked even if SSE3 was disabled. Make prefetch instructions not set the execution domain since they don't use XMM registers.

llvm-svn: 147409

separately-allocated DefinitionData structure. Introduce various
functions that will help with the separation of declarations from
definitions (isThisDeclarationADefinition(), hasDefinition(),
getDefinition()).

llvm-svn: 147408

llvm-svn: 147407

getCanonicalDecl() when putting ObjCProtocolDecls into a set. This is
groundwork for making ObjCProtocolDecl redeclarable.

llvm-svn: 147406

take precedence over command line options. Fixes PR10113.

llvm-svn: 147405

llvm-svn: 147404

PatternMatch: Introduce a matcher for instructions with the "exact" bit. Use it to simplify a few matchers.

llvm-svn: 147403

llvm-svn: 147402

llvm-svn: 147401

llvm-svn: 147400

The failure seen on win32, when i64 type is illegal.
It happens on stage of conversion VECTOR_SHUFFLE to BUILD_VECTOR.

The failure message is:
llc: SelectionDAG.cpp:784: void VerifyNodeCommon(llvm::SDNode*): Assertion `(I->getValueType() == EltVT || (EltVT.isInteger() && I->getValueType().isInteger() && EltVT.bitsLE(I->getValueType()))) && "Wrong operand type!"' failed.

I added a special test that checks vector shuffle on win32.

llvm-svn: 147399

llvm-svn: 147395

llvm-svn: 147394

llvm-svn: 147393

Fix typo in a SHUFPD and VSHUFPD pattern that prevented SHUFPD/VSHUFPD with a load from being selected.

llvm-svn: 147392

'and' that would zero out the trailing bits, and to produce an exact shift
ourselves.

llvm-svn: 147391

See PR11652. Trying to add this assert to
setSubclassData() itself actually prevented
the miscompile entirely, so it has to be here.

This makes the source of the bug more obvious
than the other asserts triggering later on did.

llvm-svn: 147390

llvm-svn: 147388

features needed for a particular module to be available. This allows
mixed-language modules, where certain headers only work under some
language variants (e.g., in C++, std.tuple might only be available in
C++11 mode).

llvm-svn: 147387

Mingw32 target has not supported integrated-as yet.

llvm-svn: 147386