llvm-svn: 110410

llvm-svn: 110407

llvm-svn: 110404

When a joined COPY changes subreg liveness, we keep it around as a KILL,
otherwise it is safe to delete.

llvm-svn: 110403

LiveVariables becomes horribly wrong while the coalescer is running, but the
analysis is not zapped until after the coalescer pass has run. This causes tons
of false reports when calling verify form the coalescer.

llvm-svn: 110402

llvm-svn: 110401

llvm-svn: 110398

ID member as the sole unique type identifier.  Clean up APIs related to this change.

llvm-svn: 110396

to IntrReadWriteArgMem, as it's for reading as well as writing.

llvm-svn: 110395

Support very basic (doesn't include ABI support in the front-end, varags, ...) 256-bit argument passing and return for AVX

llvm-svn: 110394

of BasicAA::getModRefInfo. This allows BasicAA to say that two
memset calls to non-aliasing memory locations don't interfere.

llvm-svn: 110393

llvm-svn: 110391

llvm-svn: 110388

llvm-svn: 110387

We verify that the LiveInterval is live at uses and defs, and that all
instructions have a SlotIndex.

Stuff we don't check yet:

- Is the LiveInterval minimal?
- Do all defs correspond to instructions or phis?
- Do all defs dominate all their live ranges?
- Are all live ranges continually reachable from their def?

llvm-svn: 110386

llvm-svn: 110385

llvm-svn: 110384

Split the tag and value members of LVILatticeVal in preparation for expanding the lattice to something that won't fit in two bits.

llvm-svn: 110383

response from getModRefInfo is not useful here. Instead, check for identical
calls only in the NoModRef case.

Reapply r110270, and strengthen it to compensate for the memdep changes.
When both calls are readonly, there is no dependence between them.

llvm-svn: 110382

as a positive consequence the CallSite::getCallee() methods now can be rewritten to be
a bit more efficient

llvm-svn: 110380

llvm-svn: 110376

llvm-svn: 110373

llvm-svn: 110372

llvm-svn: 110371

llvm-svn: 110369

register for local access when it's closer to the stack slot being refererenced
than the stack pointer. Make sure to take into account any argument frame
SP adjustments that are in affect at the time.

rdar://8256090

llvm-svn: 110366

llvm-svn: 110363

be killed before being redefined.

These checks are usually disabled, and usually fail when enabled. We de facto
allow live registers to be redefined without a kill, the corresponding
assertions in RegScavenger were removed long ago.

llvm-svn: 110362

Partial fix for PR7792.

llvm-svn: 110361

instructions.

llvm-svn: 110360

llvm-svn: 110359

Partial fix for PR7792.

llvm-svn: 110358

we sometimes compare singular iterators, reported by ENABLE_EXPENSIVE_CHECKS.
This fixes PR7825.

llvm-svn: 110355

into test/CodeGen/X86, so that they aren't run when the x86 target is
not enabled.

Fix uglygep.ll to not be x86-specific.

llvm-svn: 110343

--- Reverse-merging r110333 into '.':
U    tools/bugpoint/BugDriver.h
U    tools/bugpoint/OptimizerDriver.cpp
U    tools/bugpoint/bugpoint.cpp
U    tools/bugpoint/BugDriver.cpp

llvm-svn: 110341

llvm-svn: 110338

rely on using a specific x86 triple to test what they want to test.

llvm-svn: 110337

Fixes PR753.

llvm-svn: 110333

llvm-svn: 110311

preserves the existing behavior, as it seems a concious choice to allow RS to
be null and BigStack marked true.

llvm-svn: 110307