In collaboration with Adhemerval Zanella.

llvm-svn: 162562

No intended behavior change.  This was introduced in r162023.  With the fixed
algorithm a Release build of ARMInstPrinter.cpp goes from 16s to 10s on a
2011 MBP.

llvm-svn: 162559

llvm-svn: 162558

llvm-svn: 162557

llvm-svn: 162556

MSVC doesn't support passing by-value parameters with alignment of
16-bytes or higher apparantly. What is deeply confusing is that it seems
to *sometimes* (but not always) apply this to any type whose alignment
is set using __declspec(align(...)). This caused lots of errors when we switch
SmallVector over to use the automatically aligned character array
utilities as they used __declspec(align(...)) heavily.

As a pretty horrible but effective work-around, we instead cherry pick
the smallest alignment sizes with specific types that happen to have the
correct alignment, and then fall back to the attribute solution past
them. This should resolve the MSVC build errors folks have been hitting.
Sorry for that. In good news, it will do this without introducing other
UB I hope. =]

Thanks to Timur Iskhodzhanov for helping me test this!

llvm-svn: 162549

llvm-svn: 162534

not in darwin gdb compat mode.

Fixes rdar://10975088

llvm-svn: 162526

TODO: Fix code duplication and coding style.
llvm-svn: 162525

llvm-svn: 162524

llvm-svn: 162520

llvm-svn: 162518

They were inserted to silence TableGen's warning about
redundant properties. That warning is now gone.

llvm-svn: 162517

Emit TableGen errors if guessInstructionProperties is 0 and
instruction properties can't be inferred from patterns.

Allow explicit instruction properties even when they can be inferred.

This patch doesn't change the TableGen output. Redundant properties
are not yet verified because the tree has errors.

llvm-svn: 162516

llvm-svn: 162515

llvm-svn: 162514

Fix undefined behavior (signed integer overflow) when Clang parses a hexfloat with an enormous exponent. Caught by an existing unit test + -ftrapv.

llvm-svn: 162505

llvm-svn: 162499

llvm-svn: 162498

output (we're emitting a specification already and the information
isn't changing) and we're not in old gdb compat mode.

Saves 1% on the debug information for a build of llvm.

Fixes rdar://11043421

llvm-svn: 162493

turned on and off separate from the platform if you're on darwin.

llvm-svn: 162487

we're using the darwin old gdb compat mode for emitting dwarf.

llvm-svn: 162486

No test case, this is a generalization of r160260.

llvm-svn: 162485

Keep track of the set/unset state of these bits along with their
true/false values, but treat '?' as '0' for now.

llvm-svn: 162461

Currently, TableGen just guesses instruction properties when it can't
infer them form patterns.

This adds a guessInstructionProperties flag to the instruction set
definition that will be used to disable guessing. The flag is intended
as a migration aid. It will be removed again when no more targets need
their properties guessed.

llvm-svn: 162460

These intrinsics don't have unmodeled side effects, they are just
stores.

llvm-svn: 162459

This should fix a -Wdocumentation warning.

llvm-svn: 162458

llvm-svn: 162454

llvm-svn: 162446

llvm-svn: 162438

with older gdbs on darwin.

rdar://10975874

llvm-svn: 162436

llvm-svn: 162435

rdar://10393214

llvm-svn: 162434

llvm-svn: 162433

llvm-svn: 162432

change in r162404.

llvm-svn: 162431

llvm-svn: 162428

llvm-svn: 162426

llvm-svn: 162422

llvm-svn: 162421