llvm-svn: 122492

llvm-svn: 122491

llvm-svn: 122475

Converted LiveRegCycles to LiveRegGens. It's easier to work with and allows multiple nodes per cycle.

llvm-svn: 122474

llvm-svn: 122473

In the bottom-up selection DAG scheduling, handle two-address
instructions that read/write unspillable registers. Treat
the entire chain of two-address nodes as a single live range.

llvm-svn: 122472

set the RUN line correctly in a test file!

Mark a bunch of tests for ArrayBoundCheckerV2
as FIXME's, as our current lack of pointer
arithmetic handling causes these to be all
false positives/negatives.

llvm-svn: 122471

to correctly print out negative values for
signed integers.

llvm-svn: 122470

checker based on using raw (symbolic) byte offsets
from a base region.

llvm-svn: 122469

for array indices.

llvm-svn: 122468

to SValBuilder.  These two query methods are useful
for constructing SVals.

llvm-svn: 122467

to also include signedness and bitwidth of
the underlying integer.

llvm-svn: 122466

For the language check in GetObjectDescription, if we can't find a language runtime for the value we're looking at, BUT it IS at least a pointer, try the ObjCRuntime language.  That's currently the only language runtime that has an object description method anyway...

llvm-svn: 122465

"frame variable" requires that the process be running and paused or there aren't any frames...  So mark the  command properly as such.

llvm-svn: 122464

parameter packs. In particular, a parameter pack not otherwise deduced
is deduced to an empty parameter pack.

The C++0x wording here is a bit unfortunate; this should really only
apply to function templates, and it mentions "trailing" parameter
packs, which doesn't really make sense in the context of function
templates. Will file a core issue separately.

llvm-svn: 122463

llvm-svn: 122462

the presence of a pack expansion anywhere except at the end of a
template-argument-list causes the entire template-argument-list to be
a non-deduced context.

llvm-svn: 122461

get the argument values of the call stacks when stopped on the breakpoint.

Radar has been filed for the expected failures:
test failure: ./dotest.py -v -w -t -p TestFrames (argument values are wrong)

llvm-svn: 122460

new gcc warning that complains on self-assignments and
self-initializations.  Fix one bug found by the warning, in which one
clang::OverloadCandidate constructor failed to initialize its
FunctionTemplate member.

llvm-svn: 122459

new gcc warning that complains on self-assignments and
self-initializations.

llvm-svn: 122458

llvm-svn: 122457

llvm-svn: 122456

DAGCombine add (sext i1), X into sub X, (zext i1) if sext from i1 is illegal.  The latter usually compiles into smaller code.

example code:
unsigned foo(unsigned x, unsigned y) {
  if (x != 0) y--;
  return y;
}

before:
  _foo:                           ## @foo
    cmpl  $1, 4(%esp)             ## encoding: [0x83,0x7c,0x24,0x04,0x01]
    sbbl  %eax, %eax              ## encoding: [0x19,0xc0]
    notl  %eax                    ## encoding: [0xf7,0xd0]
    addl  8(%esp), %eax           ## encoding: [0x03,0x44,0x24,0x08]
    ret                           ## encoding: [0xc3]

after:
  _foo:                           ## @foo
    cmpl  $1, 4(%esp)             ## encoding: [0x83,0x7c,0x24,0x04,0x01]
    movl  8(%esp), %eax           ## encoding: [0x8b,0x44,0x24,0x08]
    adcl  $-1, %eax               ## encoding: [0x83,0xd0,0xff]
    ret                           ## encoding: [0xc3]

llvm-svn: 122455

llvm-svn: 122454

llvm-svn: 122453

single routine. Extend that routine to handle consistency
checking for template argument packs, so that we can compare the
deduced packs for template parameter packs across different pack
expansions.

llvm-svn: 122452

  int test(unsigned long a, unsigned long b) { return -(a < b); }
compiles to
  _test:                              ## @test
    cmpq  %rsi, %rdi                  ## encoding: [0x48,0x39,0xf7]
    sbbl  %eax, %eax                  ## encoding: [0x19,0xc0]
    ret                               ## encoding: [0xc3]
instead of
  _test:                              ## @test
    xorl  %ecx, %ecx                  ## encoding: [0x31,0xc9]
    cmpq  %rsi, %rdi                  ## encoding: [0x48,0x39,0xf7]
    movl  $-1, %eax                   ## encoding: [0xb8,0xff,0xff,0xff,0xff]
    cmovael %ecx, %eax                ## encoding: [0x0f,0x43,0xc1]
    ret                               ## encoding: [0xc3]

llvm-svn: 122451

llvm-svn: 122450

llvm-svn: 122449

fixed.

llvm-svn: 122448

llvm-svn: 122447

if we have a lame assembler.

llvm-svn: 122446

pick the victim with the lowest total spill weight.

llvm-svn: 122445

llvm-svn: 122444

better name and matches what is used in the MachO writer.

llvm-svn: 122443

llvm-svn: 122442

llvm-svn: 122441

pattern is a template argument, which involves repeatedly deducing
template arguments using the pattern of the pack expansion, then
bundling the resulting deductions into an argument pack.

We can now handle a variety of simple list-handling metaprograms using
variadic templates. See, e.g., the new "count" metaprogram.

llvm-svn: 122439

llvm-svn: 122438

llvm-svn: 122436