llvm-svn: 222274

llvm-svn: 222273

shift-right for booleans (i1).

Arithmetic shift-right immediate with sign-/zero-extensions also works for
boolean values.  Update the assert and the test cases to reflect that fact.

llvm-svn: 222272

llvm-svn: 222271

shift-right for booleans (i1).

Logical shift-right immediate with sign-/zero-extensions also works for boolean
values.  Update the assert and the test cases to reflect that fact.

llvm-svn: 222270

llvm-svn: 222269

llvm-svn: 222268

llvm-svn: 222267

When fixing up BL instructions, the linker has to compare the thumbness of the
target to decide if the instruction needs to be converted to BLX.  But with B
instruction there is no BX, so the linker asserts if the target is not the
same thumbness. This assert was firing in -r mode when the target was undefined
which it interpreted as being non-thumb.

Test case change is to add a B (in both thumb and arm code) to an undefined
symbol and round trip through -r mode.

llvm-svn: 222266

We would attempt to replace an frem's operand with the same operand.
This would cause InstCombine to think real work was done, causing
InstCombine to enter an infinite loop.

This fixes the second part of PR21576.

llvm-svn: 222265

nonnull attribute when comparison is always true/false. 
Original patch by Steven Wu. I have added extra code to prevent issuing of
warning  when the nonnull parameter is modified prior to the comparison.
This addition prevents false positives in the most obvious cases.
There may still be false positive warnings in some cases (as one of my tests
indicates), but benefit far outweighs such cases. rdar://18712242

llvm-svn: 222264

Renaming test files.

llvm-svn: 222263

SWIG is searched under certain paths within python script. CMake can
detect SWIG with find_package(SWIG). This is used iff user checks
LLDB_ENABLE_PYTHON_SCRIPTS_SWIG_API_GENERATION. If
buildSwigWrapperClasses.py does not receive swigExecutable argument,
then the script will use its current search implementation.

llvm-svn: 222262

This reverts commit r222203, reverting r222040 didn't end up turning the
bot green.

llvm-svn: 222261

llvm-svn: 222260

llvm-svn: 222259

Summary: This will help in testing libc++ and libc++abi with tsan.

Reviewers: samsonov

Reviewed By: samsonov

Subscribers: samsonov, llvm-commits

Differential Revision: http://reviews.llvm.org/D6283

llvm-svn: 222258

Shifts also perform sign-/zero-extends to larger types, which requires us to emit
an integer extend instead of a simple COPY.

Related to PR21594.

llvm-svn: 222257

This should expose more of the actually used VALU
instructions to the machine optimization passes.

This also should help getting i1 handling into a better state.
For not entirly understood reasons, this fixes the split-scalar-i64-add.ll
test where a 64-bit add would only partially be moved to the VALU
resulting in use of undefined VCC.

llvm-svn: 222256

"optimizeCompareInstr" converts compares (cmp/cmn) into plain sub/add
instructions when the flags are not used anymore. This conversion is valid for
most instructions, but not all. Some instructions that don't set the flags
(e.g. sub with immediate) can set the SP, whereas the flag setting version uses
the same encoding for the "zero" register.

Update the code to also check for the return register before performing the
optimization to make sure that a cmp doesn't suddenly turn into a sub that sets
the stack pointer.

I don't have a test case for this, because it isn't easy to trigger.

llvm-svn: 222255

Patch by Daniil Troshkov!

llvm-svn: 222254

llvm-svn: 222253

Summary:
This patch mirrors the recent change to libc++ found here http://reviews.llvm.org/D6277.
This fixes PR20395 (http://llvm.org/bugs/show_bug.cgi?id=20395).

Reviewers: jroelofs, mclow.lists, danalbert

Reviewed By: danalbert

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D6286

llvm-svn: 222252

llvm-svn: 222251

flags are cleared.  The reassociation pass was just reordering the leaf nodes
in the previous test cases.

llvm-svn: 222250

Adding test to show correct instruction selection and encoding.

llvm-svn: 222249

variable. NFC.

llvm-svn: 222248

This change emits a COPY for a shift-immediate with a "zero" shift value.
This fixes PR21594 where we emitted a shift instruction with an incorrect
immediate operand.

llvm-svn: 222247

llvm-svn: 222246

llvm.org/21599

llvm-svn: 222245

llvm-svn: 222244

Patch from dawn@burble.org to make the --silent-run do what it says, not the opposite of what it says.

llvm-svn: 222243

llvm-svn: 222242

EarlyCSE is giving up on the current instruction immediately when it recognizes that the current instruction makes a previous store trivially dead. There's no reason to do this. Once the previous store has been deleted, it's perfectly legal to remember the value of the current store (for value forwarding) and the fact the store occurred (it could be dead too!).

Reviewed by: Hal
Differential Revision: http://reviews.llvm.org/D6301

llvm-svn: 222241

Update status of LWG issues 2340, 2396 and 2401. In all three cases, these are things that we already do.

llvm-svn: 222240

llvm-svn: 222239

Since Eric poisoned the comma operator on all our test iterators, we no longer need 'comma_iterator'. Remove it from the test suite.

llvm-svn: 222238

llvm-svn: 222237

It's not failing anymore. Not sure what has changed (the bot was down for a
long time), but lets keep it this way.

llvm-svn: 222236

Including a standard or system header isn't allowed in OpenCL.

The type "size_t" needs to be explicitely defined now.

v2: Use __SIZE_TYPE__ instead of unsigned int.
v3: Define ptrdiff_t and NULL.

Patch-by: Jean-Sébastien Pédron
Reviewed-by: Jeroen Ketema
Reviewed-by: Jan Vesely
llvm-svn: 222235