Fixes a self-host error.

llvm-svn: 143970

and TargetLowering::BuildUDIV(). Fixes PR11283

llvm-svn: 143964

llvm-svn: 143925

llvm-svn: 143924

to fix the types section (all types, not just global types), and testcases.

The code to do the final emission is disabled by default.

llvm-svn: 143923

the pubnames and pubtypes tables. LLDB can currently use this format
and a full spec is forthcoming and submission for standardization is planned.

A basic summary:

The dwarf accelerator tables are an indirect hash table optimized
for null lookup rather than access to known data. They are output into
an on-disk format that looks like this:

.-------------.
|  HEADER     |
|-------------|
|  BUCKETS    |
|-------------|
|  HASHES     |
|-------------|
|  OFFSETS    |
|-------------|
|  DATA       |
`-------------'

where the header contains a magic number, version, type of hash function,
the number of buckets, total number of hashes, and room for a special
struct of data and the length of that struct.

The buckets contain an index (e.g. 6) into the hashes array. The hashes
section contains all of the 32-bit hash values in contiguous memory, and
the offsets contain the offset into the data area for the particular
hash.

For a lookup example, we could hash a function name and take it modulo the
number of buckets giving us our bucket. From there we take the bucket value
as an index into the hashes table and look at each successive hash as long
as the hash value is still the same modulo result (bucket value) as earlier.
If we have a match we look at that same entry in the offsets table and
grab the offset in the data for our final match.

llvm-svn: 143921

llvm-svn: 143920

llvm-svn: 143919

llvm-svn: 143918

llvm-svn: 143915

llvm-svn: 143904

Add AVX2 VEXTRACTI128 and VINSERTI128 instructions. Fix VPERM2I128 to be qualified with HasAVX2 instead of HasAVX. Mark VINSERTF128 and VEXTRACTF128 as never having side effects.

llvm-svn: 143902

llvm-svn: 143895

llvm-svn: 143891

llvm-svn: 143890

llvm-svn: 143880

Process::Wait on Windows (mimicing POSIX behaviour).

llvm-svn: 143876

llvm-svn: 143861

zero-extend the constant integer encoding.  Test case provides testing for
both call parameters and materialization of i1, i8, and i16 types.

llvm-svn: 143821

llvm-svn: 143814

that breaks on big-endian machines.

I have to clean up the 32/64 bit confusion in libDebugInfo some day.

llvm-svn: 143812

llvm-svn: 143811

llvm-svn: 143810

Add an option to pad an uleb128 to MCObjectWriter and remove the uleb128 encoding from the DWARF asm printer.

As a side effect we now print dwarf ulebs with .ascii directives.

llvm-svn: 143809

llvm-svn: 143808

llvm-svn: 143799

llvm-svn: 143755

llvm-svn: 143753

Enhanced vzeroupper insertion pass that avoids inserting vzeroupper where it is unnecessary through local analysis.  Patch from Bruno Cardoso Lopes, with some additional changes.

I'm going to wait for any review comments and perform some additional testing before turning this on by default.

llvm-svn: 143750

llvm-svn: 143749

in a 16-bit immediate.  However, for the shorter non-legal types (i.e., i1, i8,
i16) we should not sign-extend.  This prevents us from materializing things
such as 'true' (i.e., i1 1).

llvm-svn: 143743

llvm-svn: 143739

llvm-svn: 143738

for target definitions.

llvm-svn: 143731

added a layer of indirection with no value (not even conciseness).

llvm-svn: 143727

point back in the file in the included testcase. Fixes PR11300.

llvm-svn: 143726

llvm-svn: 143719

llvm-svn: 143712

llvm-svn: 143695

llvm-svn: 143683