size of the clang binary in Debug builds from 690MB to 679MB.

llvm-svn: 129518

llvm-svn: 129517

Chained PCH: Remember when additional specializations are added to a function template from a previous PCH. Fixes the only crasher when using massive chains on Clang's Sema component. We still have some incomplete codegen there.

llvm-svn: 129516

llvm-svn: 129515

llvm-svn: 129514

The ASTReader created by -chain-include used the generated PCH buffers in the wrong order. The effect was that all but the first chain-include files was ignored for subsequent compilations.

llvm-svn: 129513

llvm-svn: 129509

This is done by pushing physical register definitions close to their
use, which happens to handle flag definitions if they're not glued to
the branch. This seems to be generally a good thing though, so I
didn't need to add a target hook yet.

The primary motivation is to generate code closer to what people
expect and rule out missed opportunity from enabling macro-op
fusion. As a side benefit, we get several 2-5% gains on x86
benchmarks. There is one regression:
SingleSource/Benchmarks/Shootout/lists slows down be -10%. But this is
an independent scheduler bug that will be tracked separately.
See rdar://problem/9283108.

Incidentally, pre-RA scheduling is only half the solution. Fixing the
later passes is tracked by:
<rdar://problem/8932804> [pre-RA-sched] on x86, attempt to schedule CMP/TEST adjacent with condition jump

Fixes:
<rdar://problem/9262453> Scheduler unnecessary break of cmp/jump fusion

llvm-svn: 129508

I've used it a few times to reduce unit tests and gotten one request for information on it. It's not easy to use correctly because bugpoint doesn't tell you when you're doing it wrong.

llvm-svn: 129507

improvements, that will lead to fixing PR6627.

llvm-svn: 129504

llvm-svn: 129503

instruction around, reducing work.

Greatly simplify handling of debug instructions.  There is no need to
build up a vector of them and then move them into the one predecessor
if we're processing a block.  Instead just rescan the block and *copy*
them into the pred.  If a block gets merged into multiple preds, this
will retain more debug info.

llvm-svn: 129502

llvm-svn: 129501

tables.

llvm-svn: 129500

llvm-svn: 129499

(movzx/movsx) because they give more information. Revert that part of the patch.

llvm-svn: 129498

cases, it's much nicer and more informative reading the alias.

llvm-svn: 129497

functionality intended.

llvm-svn: 129496

DiagnosticBuilder::AddFixItHint: they will be dropped along with any
other (possibly valid) fixits later.

llvm-svn: 129495

named by the nested-name-specifier is same or base of the class in which the member expression appears.

It seems we also had an ill-formed test case, mon dieu! Fixes rdar://8576107.

llvm-svn: 129493

llvm-svn: 129492

in functionality intended.

llvm-svn: 129491

is 1 element smaller than the string, because we can just strip off the last
null character. This matches GCC.

llvm-svn: 129490

llvm-svn: 129489

llvm-svn: 129488

llvm-svn: 129487

llvm-svn: 129486

the alias".

llvm-svn: 129485

During post-legalization DAG combining, be careful to only create shifts where the RHS is of the legal type for the new operation.

llvm-svn: 129484

Modified the OptionGroupOptions to be able to specify only some of the options
that should be appended by using the usage_mask in the group defintions and
also provided a way to remap them to a new usage mask after the copy. This 
allows options to be re-used and also targetted for specific option groups.

Modfied the CommandArgumentType to have a new eArgTypePlatform enumeration.
Taught the option parser to be able to automatically use the appropriate
auto completion for a given options if nothing is explicitly specified
in the option definition. So you don't have to specify it in the option
definition tables.

Renamed the default host platform name to "host", and the default platform
hostname to be "localhost".

Modified the "file" and "platform select" commands to make sure all options
and args are good prior to creating a new platform. Also defer the computation
of the architecture in the file command until all options are parsed and the
platform has either not been specified or reset to a new value to avoid
computing the arch more than once.

Switch the PluginManager code over to using llvm::StringRef for string
comparisons and got rid of all the AccessorXXX functions in lieu of the newer
mutex + collection singleton accessors.

llvm-svn: 129483

built clang binary that is used by the test. Build systems that use
symlinks for build outputs will fail these assertions otherwise.

llvm-svn: 129482

// rdar://9091893

llvm-svn: 129481

rdar://problem/9280370

llvm-svn: 129480

llvm-svn: 129475

Fix bug where source & target registers were swapped in an
emulation function.

llvm-svn: 129474

llvm-svn: 129473

the same allocation size but different primitive sizes(e.g., <3xi32> and
<4xi32>).  When ScalarRepl promotes them, it can't use a bit cast but
should use a shuffle vector instead.

llvm-svn: 129472

Check for unallocated instruction encodings when disassembling Thumb Branch instructions (tBcc and t2Bcc).

rdar://problem/9280470

llvm-svn: 129471

llvm-svn: 129470

rdar://problem/9279440

llvm-svn: 129469