CXXDestructorCall now has a flag for when it is a base destructor call.
Other kinds of destructor calls (locals, fields, temporaries, and 'delete')
all behave as "whole-object" destructors and do not behave differently
from one another (specifically, in these cases we /should/ try to
devirtualize a call to a virtual destructor).

This was causing crashes in both our internal buildbot, the crash still
being tracked in PR13765, and some of the crashes being tracked in PR13763,
due to a assertion failure. (The behavior under -Asserts happened to be
correct anyway.)

Adding this knowledge also allows our DynamicTypePropagation checker to do
a bit less work; the special rules about virtual method calls during a
destructor only require extra handling during base destructors.

llvm-svn: 163348

This includes sb,sc,sh,sw,lb,lw,lbu,lh,lhu,ll,lw

Test case included

Contributer: Vladimir Medic
llvm-svn: 163346

handle.  Otherwise, the AsmParser will explode if we try to generate an
object files.

llvm-svn: 163345

No functional change.

llvm-svn: 163344

Thanks, Andy.

llvm-svn: 163343

and output expressions much like that in GNU-style inline assembly. Output
expressions are first.  Do this for MS-style inline asms.

llvm-svn: 163342

llvm-svn: 163341

llvm-svn: 163340

No functional change.

llvm-svn: 163339

// rdar://12233989

llvm-svn: 163338

Don't try to check override control for invalid member functions. Fixes a crash in a corner case. Patch by Olivier Goffart!

llvm-svn: 163337

The RegisterCoalescer understands overlapping live ranges where one
register is defined as a copy of the other. With this change, register
allocators using LiveRegMatrix can do the same, at least for copies
between physical and virtual registers.

When a physreg is defined by a copy from a virtreg, allow those live
ranges to overlap:

  %CL<def> = COPY %vreg11:sub_8bit; GR32_ABCD:%vreg11
  %vreg13<def,tied1> = SAR32rCL %vreg13<tied0>, %CL<imp-use,kill>

We can assign %vreg11 to %ECX, overlapping the live range of %CL.

llvm-svn: 163336

We will soon allow virtual register live ranges to overlap regunit live
ranges when the physreg is defined as a copy of the virtreg:

  %EAX = COPY %vreg5
  FOO %vreg5
  BAR %EAX<kill>

There is no real interference since %vreg5 and %EAX have the same value
where they overlap.

This patch prevents addKillFlags from adding virtreg kill flags to FOO
where the assigned physreg is overlapping the virtual register live
range.

llvm-svn: 163335

Kill flags are difficult to maintain, and liveness queries are better
handled by live intervals.

Kill flags are reinserted after register allocation by addKillFlags().

llvm-svn: 163334

This patch uses a new ABIInfo implementation specific to the le32
target, rather than falling back to DefaultABIInfo. Its behavior is
basically the same, but it also allows the regparm argument attribute.
It also includes basic tests for argument codegen and attributes.

llvm-svn: 163333

llvm-svn: 163332

Enabling the UTF conversion routines that were previously conditionally ifdef'ed out. This change is required to support enhancements in the LLDB data formatters

llvm-svn: 163331

Fixing the return type information for objc_sync_enter and objc_sync_exit.  Patch thanks to Joe Ranieri!

llvm-svn: 163330

   Don't warn if annotated decl is used inside another
   unused. // rdar://12233989

llvm-svn: 163329

These tests were failing for me because the .* was greedily matching up
to the /libexec/ld-elf.so.1" later on the same line.

llvm-svn: 163328

llvm-svn: 163327

llvm-svn: 163326

llvm-svn: 163325

llvm-svn: 163324

Patch by Chris Lidbury.

llvm-svn: 163323

tsan: increase max shadow stack size + reduce memory consumption at the same time (by not memorizing full stacks in traces)

llvm-svn: 163322

Patch by Chris Lidbury.

llvm-svn: 163321

llvm-svn: 163320

Enhances basic alias analysis to recognize phis whose first incoming values are
NoAlias and whose other incoming values are just the phi node itself through
some amount of recursion.

Example: With this change basicaa reports that ptr_phi and ptr_phi2 do not alias
each other.

bb:
 ptr = ptr2 + 1

loop:
  ptr_phi = phi [bb, ptr], [loop, ptr_plus_one]
  ptr2_phi = phi [bb, ptr2], [loop, ptr2_plus_one]
  ...
  ptr_plus_one = gep ptr_phi, 1
  ptr2_plus_one = gep ptr2_phi, 1

This enables the elimination of one load in code like the following:

extern int foo;

int test_noalias(int *ptr, int num, int* coeff) {
  int *ptr2 = ptr;
  int result = (*ptr++) * (*coeff--);
  while (num--) {
    *ptr2++ = *ptr;
    result +=  (*coeff--) * (*ptr++);
  }
  *ptr = foo;
  return result;
}

Part 2/2 of fix for PR13564.

llvm-svn: 163319

Patch by Chris Lidbury.

llvm-svn: 163318

If we can show that the base pointers of two GEPs don't alias each other using
precise analysis and the indices and base offset are equal then the two GEPs
also don't alias each other.
This is primarily needed for the follow up patch that analyses NoAlias'ing PHI
nodes.

Part 1/2 of fix for PR13564.

llvm-svn: 163317

llvm-svn: 163316

This Operand type takes a default argument, and is initialized to
this value if it does not appear in a patter.

llvm-svn: 163315

Fix two compiler warnings: must use at least one argument for "..." in a variadic macros, signed vs. unsigned comparison.

llvm-svn: 163314

llvm-svn: 163313

Added generation of VPSHUB instruction for <32 x i8> vector shuffle when possible.

llvm-svn: 163312

llvm-svn: 163311

llvm-svn: 163309

llvm-svn: 163308

llvm-svn: 163307