llvm-svn: 163507

The VPSHUFB 256-bit instruction may be generated when one of input vector is undefined or zeroinitializer.
I've added the "zeroinitializer" case in this patch.

llvm-svn: 163506

llvm-svn: 163504

llvm-svn: 163503

- The C API should be stable
- InlineAsm::AsmDialect is not exposed to C
- The function didn't match the prototype so this was unreachable code

llvm-svn: 163502

llvm-svn: 163501

llvm-svn: 163496

llvm-svn: 163495

llvm-svn: 163494

llvm-svn: 163491

llvm-svn: 163485

llvm-svn: 163484

llvm-svn: 163483

llvm-svn: 163481

llvm-svn: 163480

LiveVariables: Compute a set of defs and kills to speed up updating LV during critical edge splitting.

Previously we checked if the register is def'd in a block via the def/use list a
nd walked the list of kills to check if the register is killed in a block. Both
of these checks can be made much cheaper by walking the block first and
recording all defs and kills.

This reduces the compile time of the test case from PR13651 from 40s to 15s at
-O2. The compile time is still dominated by LV updating but now the main culprit
is SparseBitVector's slowness.

llvm-svn: 163478

llvm-svn: 163473

For example, which('loop-convert') returns 'loop-convert' when the directory 'loop-convert' exists.

llvm-svn: 163469

llvm-svn: 163463

llvm-svn: 163461

Set operation action for FFLOOR to Expand for all vector types for X86. Set FFLOOR of v4f32 to Expand for ARM. v2f64 was already correct.

llvm-svn: 163458

Revert "Add -exact-match option to FileCheck to allow clients to do exact matches without using regular expressions."

Turns out I did not need it after all.  If we find a use for it in the future, we
can resurrect it.

llvm-svn: 163457

llvm-svn: 163454

Patch and test case by Alastair Murray!

llvm-svn: 163437

Patch by Ivan Llopard!

llvm-svn: 163424

llvm-svn: 163423

llvm-svn: 163422

For some reason .lcomm uses byte alignment and .comm log2 alignment so we can't
use the same setting for both. Fix this by reintroducing the LCOMM enum.
I verified this against mingw's gcc.

llvm-svn: 163420

This is not an exhaustive set, but something we can build on.

Contributer: Vladimir Medic
llvm-svn: 163419

llvm-svn: 163416

llvm-svn: 163405

llvm-svn: 163401

The 'select' transformations apply to all ARM architectures and don't
require hasV6T2Ops.

llvm-svn: 163396

- Darwin lied about not supporting .lcomm and turned it into zerofill in the
  asm parser. Push the zerofill-conversion down into macho-specific code.
- This makes the tri-state LCOMMType enum superfluous, there are no targets
  without .lcomm.
- Do proper error reporting when trying to use .lcomm with alignment on a target
  that doesn't support it.
- .comm and .lcomm alignment was parsed in bytes on COFF, should be power of 2.
- Fixes PR13755 (.lcomm crashes on ELF).

llvm-svn: 163395

gas accepts this and it seems to be common enough to be worth supporting. This
doesn't affect the parsing of reg operands outside of .cfi directives.

llvm-svn: 163390

llvm-svn: 163383

Patch by Rick Foos.

llvm-svn: 163380

llvm-svn: 163378

Add -exact-match option to FileCheck to allow clients to do exact matches without using regular expressions.

llvm-svn: 163371

- this should fix PR13780

llvm-svn: 163370