llvm-svn: 153607

llvm-svn: 153604

The arm_neon intrinsics can create virtual registers from the DPair
register class which allows both even-odd and odd-even D-register pairs.

This fixes PR12389.

llvm-svn: 153603

llvm-svn: 153602

llvm-svn: 153601

llvm-svn: 153599

llvm-svn: 153598

Branch folding invalidates liveness and disables liveness verification
on some targets.

llvm-svn: 153597

Extract the liveness verification into its own method.

This makes it possible to run the machine code verifier after liveness
information is no longer required to be valid.

llvm-svn: 153596

a bunch of comments for the various functions. No intended functionality change.

llvm-svn: 153595

llvm-svn: 153594

Revert r153519: "ARMLoadStoreOptimizer invalidates register liveness."

These patches caused miscompilations in povray by turning off branch
folding's updating of live-in lists.

It turns out the the late scheduler depends on the live-in lists, even
if it doesn't need correct kill flags.

<rdar://problem/11139228>

llvm-svn: 153593

This avoids the silly double search:

  if (isLiveIn(Reg))
    removeLiveIn(Reg);

llvm-svn: 153592

llvm-svn: 153591

Also fix some Platform.h includes that somehow got missed last time.

llvm-svn: 153590

library depends on Core. This breaks that cycle.

llvm-svn: 153589

llvm-svn: 153588

Original commit message for r153521 (aka r153423):
Use the new range metadata in computeMaskedBits and add a new optimization to
instruction simplify that lets us remove an and when loding a boolean value.

llvm-svn: 153587

llvm-svn: 153586

Patch by Dmitri Shubin!

llvm-svn: 153585

provide 'fixit' hint when dictionary index 
is not of proper type. // rdar://11062080

llvm-svn: 153584

Converted commented out printf statements for dynamic type logging to use the log for "log enabe lldb types".

llvm-svn: 153583

llvm-svn: 153582

retry without inlining.

(+ other minor cleanups)

llvm-svn: 153581

the root function.

(This is a bit cleaner then using the StackFrame.)

llvm-svn: 153580

llvm-svn: 153579

llvm-svn: 153578

concerning qualified declarator-ids. We now diagnose extraneous
qualification at namespace scope (which we had previously missed) and
diagnose these qualification errors for all kinds of declarations; it
was rather uneven before. Fixes <rdar://problem/11135644>.

llvm-svn: 153577

GlobalOpt: If we have an inbounds GEP from a ConstantAggregateZero global that we just determined to be constant, replace all loads from it with a zero value.

llvm-svn: 153576

search for the specialization (in a folding set) and, if not found
form a *Decl that is then inserted into that folding set. In rare
cases, the folding set may be reallocated between the search and the
insertion, causing a crash. No test case, because triggering rehashing
consistently in a small test case is not feasible. Fixes
<rdar://problem/11115071>.

llvm-svn: 153575

llvm-svn: 153574

llvm-svn: 153573

blocks in the function cloner. This removes the last case of trivially
dead code that I've been seeing in the wild getting inlined, analyzed,
re-inlined, optimized, only to be deleted. Nukes a FIXME from the
cleanup tests.

llvm-svn: 153572

llvm-svn: 153571

and not the rest of the member tag.

Fixes PR11695

llvm-svn: 153570

llvm-svn: 153568

llvm-svn: 153567

llvm-svn: 153566

llvm-svn: 153565

llvm-svn: 153564