Commit Graph

1666 Commits

Author SHA1 Message Date
Owen Anderson
13146c7e3b Add initial support for the convergent attribute.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238264 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-26 23:48:40 +00:00
Philip Reames
d59f970668 [PlaceSafepoints] Cleanup InsertSafepointPoll function
While working on another change, I noticed that the naming in this function was mildly deceptive.  While fixing that, I took the oppurtunity to modernize some of the code.  NFC intended.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238252 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-26 21:03:23 +00:00
Kit Barton
948ecae20e This patch adds support for the vector quadword add/sub instructions introduced
in POWER8:

vadduqm
vaddeuqm
vaddcuq
vaddecuq
vsubuqm
vsubeuqm
vsubcuq
vsubecuq
In addition to adding the instructions themselves, it also adds support for the
v1i128 type for intrinsics (Intrinsics.td, Function.cpp, and
IntrinsicEmitter.cpp).

http://reviews.llvm.org/D9081


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238144 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-25 15:49:26 +00:00
Akira Hatanaka
c17da7166d Simplify and rename function overrideFunctionAttributes. NFC.
This is in preparation to making changes needed to stop resetting
NoFramePointerElim in resetTargetOptions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238079 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-23 01:12:26 +00:00
Pete Cooper
1052042adf Use Op<0> accessor instead of OperandList for Instructions. NFC
This is consistent with other uses of the operand list.  I'm planning a future commit where this will actually matter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237967 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-21 22:48:54 +00:00
David Blaikie
6777be3446 Put GEPOperator member function definition in the appropriate .cpp file
Last commit put it in Constants.cpp instead of Operator.cpp

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237960 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-21 21:17:12 +00:00
David Blaikie
bd75a9292e [opaque pointer type] Allow gep_type_iterator to work with the pointee type from the GEP instruction
The raw non-instruction/constant form of this is still relying on being
able to access the pointee type from a pointer type - those will be
cleaned up later. For now, just focus on the cases where the pointee
type is easily accessible.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237958 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-21 21:12:43 +00:00
Adrian Prantl
849c7601a0 IR / debug info: Add a DWOId field to DICompileUnit,
so DWARF skeleton CUs can be expression in IR. A skeleton CU is a
(typically empty) DW_TAG_compile_unit that has a DW_AT_(GNU)_dwo_name and
a DW_AT_(GNU)_dwo_id attribute. It is used to refer to external debug info.

This is a prerequisite for clang module debugging as discussed in
http://lists.cs.uiuc.edu/pipermail/cfe-dev/2014-November/040076.html.
In order to refer to external types stored in split DWARF (dwo) objects,
such as clang modules, we need to emit skeleton CUs, which identify the
dwarf object (i.e., the clang module) by filename (the SplitDebugFilename)
and a hash value, the dwo_id.

This patch only contains the IR changes. The idea is that a CUs with a
non-zero dwo_id field will be emitted together with a DW_AT_GNU_dwo_name
and DW_AT_GNU_dwo_id attribute.

http://reviews.llvm.org/D9488
rdar://problem/20091852

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237949 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-21 20:37:30 +00:00
David Blaikie
47ee653cdc [opaque pointer type] Pass explicit pointee type in another case of GEP constant folding
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237860 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-21 00:06:38 +00:00
David Blaikie
14a714f727 [opaque pointer type] Pass explicit type to Load instruction creation in AutoUpgrade
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237838 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-20 21:46:30 +00:00
David Blaikie
e86ba4b571 [opaque pointer type] LoadInst: assert that the explicit type matches the implicit one
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237830 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-20 20:22:31 +00:00
Pete Cooper
9584e07a9c Change Function::getIntrinsicID() to return an Intrinsic::ID. NFC.
Now that Intrinsic::ID is a typed enum, we can forward declare it and so return it from this method.

This updates all users which were either using an unsigned to store it, or had a now unnecessary cast.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237810 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-20 17:16:39 +00:00
Sanjoy Das
4d88c3ebad Dereferenceable, dereferenceable_or_null metadata for loads
Summary:
Introduce dereferenceable, dereferenceable_or_null metadata for loads
with the same semantic as corresponding attributes.

This patch depends on http://reviews.llvm.org/D9253

Patch by Artur Pilipenko!

Reviewers: hfinkel, sanjoy, reames

Reviewed By: sanjoy, reames

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D9365

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237720 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-19 20:10:19 +00:00
Yaron Keren
07cfd922f0 As r237678 was reverted, this is no longer needed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237687 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-19 11:46:27 +00:00
Yaron Keren
a44933e6d0 Fix Visual C++ errors C2784, C2780, C2782 after r237678.
It does not like std::min(unsigned, uint32_t).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237683 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-19 11:18:10 +00:00
Pete Cooper
a641a4a89e Store intrinsic ID by value in Function instead of a string lookup. NFC.
On 64-bit targets, Function has 4-bytes of padding in its struct layout.

This uses the space for the intrinsic ID. It is set and recalculated whenever the function name is set.  This is similar to the current behavior which clears the function from the intrinsic ID cache when its renamed.

The intrinsic cache itself is removed as the only purpose was to speedup calls to getIntrinsicID() which now just reading the new field in the struct.

Reviewed by Duncan.  http://reviews.llvm.org/D9836

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237642 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-19 00:24:26 +00:00
Pete Cooper
d42228154f Move Function::lookupIntrinsicID to a static method. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237641 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-19 00:02:25 +00:00
David Blaikie
042dd34f9c Simplify IRBuilder::CreateCall* by using ArrayRef+initializer_list/braced init only
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237624 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-18 22:13:54 +00:00
Eric Christopher
8b6f5f0909 Fix some odd whitespace and formatting errors while making
changes in ConstantsContext.h.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237620 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-18 21:49:02 +00:00
Filipe Cabecinhas
70a2c7260a Extract the load/store type verification to a separate function.
Summary:
Added isLoadableOrStorableType to PointerType.

We were doing some checks in some places, occasionally assert()ing instead
of telling the caller. With this patch, I'm putting all type checking in
the same place for load/store type instructions, and verifying the same
thing every time.

I also added a check for load/store of a function type.

Applied extracted check to Load, Store, and Cmpxcg.

I don't have exhaustive tests for all of these, but all Error() calls in
TypeCheckLoadStoreInst are being tested (in invalid.test).

Reviewers: dblaikie, rafael

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D9785

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237619 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-18 21:48:55 +00:00
Chen Li
881547e01b [Verifier] Assert gc_relocate always return a pointer type
Summary: Add an assertion in verifier.cpp to make sure gc_relocate relocate a gc pointer, and its return type has the same address space with the relocated pointer.

Reviewers: reames, AndyAyers, sanjoy, pgavlin

Reviewed By: pgavlin

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D9695

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237605 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-18 19:50:14 +00:00
Eric Christopher
1bef1cdd92 While in GlobalValue fix the function(s) that don't follow the
naming convention and update users.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237461 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-15 18:20:14 +00:00
Jingyue Wu
85e632de29 Add a speculative execution pass
Summary:
This is a pass for speculative execution of instructions for simple if-then (triangle) control flow. It's aimed at GPUs, but could perhaps be used in other contexts. Enabling this pass gives us a 1.0% geomean improvement on Google benchmark suites, with one benchmark improving 33%.

Credit goes to Jingyue Wu for writing an earlier version of this pass.

Patched by Bjarke Roune. 

Test Plan:
This patch adds a set of tests in test/Transforms/SpeculativeExecution/spec.ll
The pass is controlled by a flag which defaults to having the pass not run.

Reviewers: eliben, dberlin, meheff, jingyue, hfinkel

Reviewed By: jingyue, hfinkel

Subscribers: majnemer, jholewinski, llvm-commits

Differential Revision: http://reviews.llvm.org/D9360

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237459 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-15 17:54:48 +00:00
David Blaikie
ea3c20f400 [opaque pointer type] Use GlobalVariable::getValueType rather than accessing it through the GV's pointee type
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237311 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-13 22:54:54 +00:00
Sanjoy Das
f11e64dc03 [Safepoints][Verifier] Fix a tautological Assert.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237287 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-13 20:11:59 +00:00
David Blaikie
428e9d7608 [opaque pointer type] Constant Folding: Use GEPOperator to access the pointee source type rather than going through the first operand's pointer type
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237274 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-13 18:35:29 +00:00
David Blaikie
115494b777 [opaque pointer type] Pass the explicit function type down to the instruction constructor when parsing invoke instructions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237273 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-13 18:35:26 +00:00
Diego Novillo
a3bccceda7 Add function entry count metadata.
Summary:
This adds three Function methods to handle function entry counts:
setEntryCount() and getEntryCount().

Entry counts are stored under the MD_prof metadata node with the name
"function_entry_count". They are unsigned 64 bit values set by profilers
(instrumentation and sample profiler changes coming up).

Added documentation for new profile metadata and tests.

Reviewers: dexonsmith, bogner

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D9628

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237260 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-13 15:13:45 +00:00
Sanjoy Das
ead2d1fbe0 [Statepoints] Support for "patchable" statepoints.
Summary:
This change adds two new parameters to the statepoint intrinsic, `i64 id`
and `i32 num_patch_bytes`.  `id` gets propagated to the ID field
in the generated StackMap section.  If the `num_patch_bytes` is
non-zero then the statepoint is lowered to `num_patch_bytes` bytes of
nops instead of a call (the spill and reload code remains unchanged).
A non-zero `num_patch_bytes` is useful in situations where a language
runtime requires complete control over how a call is lowered.

This change brings statepoints one step closer to patchpoints.  With
some additional work (that is not part of this patch) it should be
possible to get rid of `TargetOpcode::STATEPOINT` altogether.

PlaceSafepoints generates `statepoint` wrappers with `id` set to
`0xABCDEF00` (the old default value for the ID reported in the stackmap)
and `num_patch_bytes` set to `0`.  This can be made more sophisticated
later.

Reviewers: reames, pgavlin, swaroop.sridhar, AndyAyers

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D9546

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237214 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-12 23:52:24 +00:00
Pete Cooper
f23c6af13d Convert PHI getIncomingValue() to foreach over incoming_values(). NFC.
We already had a method to iterate over all the incoming values of a PHI.  This just changes all eligible code to use it.

Ineligible code included anything which cared about the index, or was also trying to get the i'th incoming BB.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237169 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-12 20:05:31 +00:00
Sunil Srivastava
561c44fc33 Changed renaming of local symbols by inserting a dot vefore the numeric suffix.
One code change and several test changes to match that
details in http://reviews.llvm.org/D9481


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237150 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-12 16:47:30 +00:00
Sanjoy Das
aa1c57e324 Rename variables in gc_relocate related functions to follow LLVM's naming conventions.
Summary:
This patch is to rename some variables to CamelCase in gc_relocate
related functions. There is no functionality change.

Patch by Chen Li!

Reviewers: reames, AndyAyers, sanjoy

Reviewed By: sanjoy

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D9681

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237069 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-11 23:47:27 +00:00
David Blaikie
12a7fbc55c Simplify a return expression and an access to an alloca's allocated type
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237065 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-11 23:09:25 +00:00
Sanjoy Das
5b5782c20e [RewriteStatepointsForGC] Fix a bug on creating gc_relocate for pointer to vector of pointers
Summary:
In RewriteStatepointsForGC pass, we create a gc_relocate intrinsic for
each relocated pointer, and the gc_relocate has the same type with the
pointer. During the creation of gc_relocate intrinsic, llvm requires to
mangle its type. However, llvm does not support mangling of all possible
types. RewriteStatepointsForGC will hit an assertion failure when it
tries to create a gc_relocate for pointer to vector of pointers because
mangling for vector of pointers is not supported.

This patch changes the way RewriteStatepointsForGC pass creates
gc_relocate. For each relocated pointer, we erase the type of pointers
and create an unified gc_relocate of type i8 addrspace(1)*. Then a
bitcast is inserted to convert the gc_relocate to the correct type. In
this way, gc_relocate does not need to deal with different types of
pointers and the unsupported type mangling is no longer a problem. This
change would also ease further merge when LLVM erases types of pointers
and introduces an unified pointer type.

Some minor changes are also introduced to gc_relocate related part in
InstCombineCalls, CodeGenPrepare, and Verifier accordingly.

Patch by Chen Li!

Reviewers: reames, AndyAyers, sanjoy

Reviewed By: sanjoy

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D9592

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237009 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-11 18:49:34 +00:00
Elena Demikhovsky
63df7cd4ea AVX-512: Changed CC parameter in "cmp" intrinsic
from i8 to i32 according to the Intel Spec

by Igor Breger (igor.breger@intel.com)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@236979 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-11 09:03:14 +00:00
Quentin Colombet
4406c32c19 Revert r236912.
Author: dblaikie
Date: Fri May  8 17:47:50 2015
New Revision: 236912

URL: http://llvm.org/viewvc/llvm-project?rev=236912&view=rev
Log:
[opaque pointer type] Cleanup a few references to pointee types using nearby non-pointee types of the same value

& cleanup a convoluted return expression while I'm here


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@236919 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-09 00:02:06 +00:00
David Blaikie
19d2499d6a [opaque pointer type] Cleanup a few references to pointee types using nearby non-pointee types of the same value
& cleanup a convoluted return expression while I'm here

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@236912 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-08 22:47:50 +00:00
David Blaikie
d3be0003c4 Replace branch-to-unreachable with assertion.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@236893 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-08 18:52:28 +00:00
Pat Gavlin
5c7f7462e4 Extend the statepoint intrinsic to allow statepoints to be marked as transitions from GC-aware code to code that is not GC-aware.
This changes the shape of the statepoint intrinsic from:

  @llvm.experimental.gc.statepoint(anyptr target, i32 # call args, i32 unused, ...call args, i32 # deopt args, ...deopt args, ...gc args)

to:

  @llvm.experimental.gc.statepoint(anyptr target, i32 # call args, i32 flags, ...call args, i32 # transition args, ...transition args, i32 # deopt args, ...deopt args, ...gc args)

This extension offers the backend the opportunity to insert (somewhat) arbitrary code to manage the transition from GC-aware code to code that is not GC-aware and back.

In order to support the injection of transition code, this extension wraps the STATEPOINT ISD node generated by the usual lowering lowering with two additional nodes: GC_TRANSITION_START and GC_TRANSITION_END. The transition arguments that were passed passed to the intrinsic (if any) are lowered and provided as operands to these nodes and may be used by the backend during code generation.

Eventually, the lowering of the GC_TRANSITION_{START,END} nodes should be informed by the GC strategy in use for the function containing the intrinsic call; for now, these nodes are instead replaced with no-ops.

Differential Revision: http://reviews.llvm.org/D9501

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@236888 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-08 18:07:42 +00:00
David Blaikie
66583e4917 [opaque pointer type] Explicit pointee type for GEPOperator/GEPConstantExpr.
Also a couple of other changes to avoid use of
PointerType::getElementType here & there too.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@236799 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-08 00:42:26 +00:00
David Blaikie
ad80c2d9ed Recommit r236670: [opaque pointer type] Pass explicit pointer type through GEP constant folding""
Clang regressions were caused by more stringent assertion checking
introduced by this change. Small fix needed to clang has been committed
in r236751.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@236752 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-07 17:28:58 +00:00
Elena Demikhovsky
d08d0340e5 AVX-512: Added all forms of FP compare instructions for KNL and SKX.
Added intrinsics for the instructions. CC parameter of the intrinsics was changed from i8 to i32 according to the spec.

By Igor Breger (igor.breger@intel.com)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@236714 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-07 11:24:42 +00:00
David Blaikie
be6ad41cdd Revert "[opaque pointer type] Pass explicit pointer type through GEP constant folding"
Causes regressions in Clang. Reverting while I investigate.

This reverts commit r236670.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@236678 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-06 23:56:21 +00:00
Akira Hatanaka
e6f0494cd8 Let llc and opt override "-target-cpu" and "-target-features" via command line
options.

This commit fixes a bug in llc and opt where "-mcpu" and "-mattr" wouldn't
override function attributes "-target-cpu" and "-target-features" in the IR.

Differential Revision: http://reviews.llvm.org/D9537


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@236677 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-06 23:54:14 +00:00
Sanjoy Das
8a86e2564d [IRBuilder] Add a CreateGCStatepointInvoke.
Renames the original CreateGCStatepoint to CreateGCStatepointCall, and
moves invoke creating functionality from PlaceSafepoints.cpp to
IRBuilder.cpp.

This changes the labels generated for PlaceSafepoints/invokes.ll so use
a regex there to make the basic block labels more resilient.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@236672 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-06 23:53:09 +00:00
David Blaikie
cb0a50fe54 [opaque pointer type] Pass explicit pointer type through GEP constant folding
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@236670 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-06 23:49:14 +00:00
Pete Cooper
a7574638e7 Change typeIncompatible to return an AttrBuilder instead of new-ing an AttributeSet.
This makes use of the new API which can remove attributes from a set given a builder.

This is much faster than creating a temporary set and reduces llc time by about 0.3% which was all spent creating temporary attributes sets on the context.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@236668 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-06 23:19:56 +00:00
Pete Cooper
c58f23eeb6 Add remove method to operate on AttrBuilder instead of AttributeSet.
Prior to this change we would have to construct a temporary AttributeSet (which isn't temporary at all given that its allocated on the context), just to contain the attributes in the builder, then call remove on that.

Now we can just remove any attributes from the (lightweight and really temporary) builder itself.

Will be used in a future commit to remove some temporary attributes sets.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@236666 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-06 23:19:43 +00:00
Pete Cooper
cdedd99893 Remove unnecessary #ifndef NDEBUG guard around assert. NFC.
Found by Hal Finkel in the review of AttributeSets.  http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20150504/275058.html

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@236662 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-06 22:55:46 +00:00
Sanjoy Das
5a6ea245b0 Add missing dereferenceable_or_null getters
Summary: Add missing dereferenceable_or_null getters required for
http://reviews.llvm.org/D9253 change. Separated from the D9253 review.

Patch by Artur Pilipenko!

Reviewers: sanjoy

Reviewed By: sanjoy

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D9499

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@236615 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-06 17:41:54 +00:00