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7 years agoRevert "[asan] Add support of lifetime poisoning into ComputeASanStackFrameLayout"
Vitaly Buka [Fri, 19 Aug 2016 22:12:58 +0000 (22:12 +0000)]
Revert "[asan] Add support of lifetime poisoning into ComputeASanStackFrameLayout"

This reverts commit r279020.

Speculative revert in hope to fix asan test on arm.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279332 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoConvert some depth first traversals to depth_first
Daniel Berlin [Fri, 19 Aug 2016 22:06:23 +0000 (22:06 +0000)]
Convert some depth first traversals to depth_first

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279331 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[CallGraph] Use decltype instead of pointer_to_unary_function. NFC.
Tim Shen [Fri, 19 Aug 2016 21:52:34 +0000 (21:52 +0000)]
[CallGraph] Use decltype instead of pointer_to_unary_function. NFC.

Reviewers: dblaikie

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D23725

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279328 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[GraphTraits] Make nodes_iterator dereference to NodeType*/NodeRef
Tim Shen [Fri, 19 Aug 2016 21:20:13 +0000 (21:20 +0000)]
[GraphTraits] Make nodes_iterator dereference to NodeType*/NodeRef

Currently nodes_iterator may dereference to a NodeType* or a NodeType&. Make them all dereference to NodeType*, which is NodeRef later.

Differential Revision: https://reviews.llvm.org/D23704
Differential Revision: https://reviews.llvm.org/D23705

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279326 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Packetizer] Add debugging code to stop packetization after N instructions
Krzysztof Parzyszek [Fri, 19 Aug 2016 21:12:52 +0000 (21:12 +0000)]
[Packetizer] Add debugging code to stop packetization after N instructions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279325 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Hexagon] Avoid register dependencies on indirect branches in packetizer
Krzysztof Parzyszek [Fri, 19 Aug 2016 21:07:35 +0000 (21:07 +0000)]
[Hexagon] Avoid register dependencies on indirect branches in packetizer

Do not packetize the instruction setting the branch address with the
indirect branch itself.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279324 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[ADT] add pointer_iterator, the opposite of pointee_iterator
Tim Shen [Fri, 19 Aug 2016 21:04:45 +0000 (21:04 +0000)]
[ADT] add pointer_iterator, the opposite of pointee_iterator

Differential Revision: https://reviews.llvm.org/D23703

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279323 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[libFuzzer] fix the non-debug build warnings
Kostya Serebryany [Fri, 19 Aug 2016 20:57:09 +0000 (20:57 +0000)]
[libFuzzer] fix the non-debug build warnings

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279321 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoGlobalISel: translate floating-point round/extend
Tim Northover [Fri, 19 Aug 2016 20:48:23 +0000 (20:48 +0000)]
GlobalISel: translate floating-point round/extend

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279320 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoGlobalISel: translate floating-point comparisons
Tim Northover [Fri, 19 Aug 2016 20:48:16 +0000 (20:48 +0000)]
GlobalISel: translate floating-point comparisons

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279319 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[NVPTX] Switch nvptx-use-infer-addrspace to true.
Justin Lebar [Fri, 19 Aug 2016 20:46:45 +0000 (20:46 +0000)]
[NVPTX] Switch nvptx-use-infer-addrspace to true.

Summary:
This switches us to use a different, more powerful algorithm for address
space inference.  I've tested this locally and it seems to work great.
Once we're more confident in it, we can remove the old pass altogether.

Reviewers: jingyue

Subscribers: llvm-commits, tra, jholewinski

Differential Revision: https://reviews.llvm.org/D23694

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279317 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoReapply "ADT: Remove UB in ilist (and use a circular linked list)"
Duncan P. N. Exon Smith [Fri, 19 Aug 2016 20:40:12 +0000 (20:40 +0000)]
Reapply "ADT: Remove UB in ilist (and use a circular linked list)"

This reverts commit r279053, reapplying r278974 after fixing PR29035
with r279104.

Note that r279312 has been committed in the meantime, and this has been
rebased on top of that.  Otherwise it's identical to r278974.

Note for maintainers of out-of-tree code (that I missed in the original
message): if the new isKnownSentinel() assertion is firing from
ilist_iterator<>::operator*(), this patch has identified a bug in your
code.  There are a few common patterns:
- Some IR-related APIs htake an IRUnit* that might be nullptr, and pass
  in an incremented iterator as an insertion point.  Some old code was
  using "&*++I", which in the case of end() only worked by fluke.  If
  the IRUnit in question inherits from ilist_node_with_parent<>, you can
  use "I->getNextNode()".  Otherwise, use "List.getNextNode(*I)".
- In most other cases, crashes on &*I just need to check for I==end()
  before dereferencing.
- There's also occasional code that sends iterators into a function, and
  then starts calling I->getOperand() (or other API).  Either check for
  end() before the entering the function, or early exit.

Note for if the static_assert with HasObsoleteCustomization is firing
for you:
- r278513 has examples of how to stop using custom sentinel traits.
- r278532 removed ilist_nextprev_traits since no one was using it.  See
  lld's r278469 for the only migration I needed to do.

Original commit message follows.

----

This removes the undefined behaviour (UB) in ilist/ilist_node/etc.,
mainly by removing (gutting) the ilist_sentinel_traits customization
point and canonicalizing on a single, efficient memory layout.  This
fixes PR26753.

The new ilist is a doubly-linked circular list.
- ilist_node_base has two ilist_node_base*: Next and Prev.  Size-of: two
  pointers.
- ilist_node<T> (size-of: two pointers) is a type-safe wrapper around
  ilist_node_base.
- ilist_iterator<T> (size-of: two pointers) operates on an
  ilist_node<T>*, and downcasts to T* on dereference.
- ilist_sentinel<T> (size-of: two pointers) is a wrapper around
  ilist_node<T> that has some extra API for list management.
- ilist<T> (size-of: two pointers) has an ilist_sentinel<T>, whose
  address is returned for end().

The new memory layout matches ilist_half_embedded_sentinel_traits<T>
exactly.  The Head pointer that previously lived in ilist<T> is
effectively glued to the ilist_half_node<T> that lived in
ilist_half_embedded_sentinel_traits<T>, becoming the Next and Prev in
the ilist_sentinel_node<T>, respectively.  sizeof(ilist<T>) is now the
size of two pointers, and there is never any additional storage for a
sentinel.

This is a much simpler design for a doubly-linked list, removing most of
the corner cases of list manipulation (add, remove, etc.).  In follow-up
commits, I intend to move as many algorithms as possible into a
non-templated base class (ilist_base) to reduce code size.

Moreover, this fixes the UB in ilist_iterator/getNext/getPrev
operations.  Previously, ilist_iterator<T> operated on a T*, even when
the sentinel was not of type T (i.e., ilist_embedded_sentinel_traits and
ilist_half_embedded_sentinel_traits).  This added UB to all operations
involving end().   Now, ilist_iterator<T> operates on an ilist_node<T>*,
and only downcasts when the full type is guaranteed to be T*.

What did we lose?  There used to be a crash (in some configurations) on
++end().  Curiously (via UB), ++end() would return begin() for users of
ilist_half_embedded_sentinel_traits<T>, but otherwise ++end() would
cause a nice dependable nullptr dereference, crashing instead of a
possible infinite loop.  Options:
 1. Lose that behaviour.
 2. Keep it, by stealing a bit from Prev in asserts builds.
 3. Crash on dereference instead, using the same technique.

Hans convinced me (because of the number of problems this and r278532
exposed on Windows) that we really need some assertion here, at least in
the short term.  I've opted for #3 since I think it catches more bugs.

I added only a couple of unit tests to root out specific bugs I hit
during bring-up, but otherwise this is tested implicitly via the
extensive usage throughout LLVM.

Planned follow-ups:
- Remove ilist_*sentinel_traits<T>.  Here I've just gutted them to
  prevent build failures in sub-projects.  Once I stop referring to them
  in sub-projects, I'll come back and delete them.
- Add ilist_base and move algorithms there.
- Check and fix move construction and assignment.

Eventually, there are other interesting directions:
- Rewrite reverse iterators, so that rbegin().getNodePtr()==&*rbegin().
  This allows much simpler logic when erasing elements during a reverse
  traversal.
- Remove ilist_traits::createNode, by deleting the remaining API that
  creates nodes.  Intrusive lists shouldn't be creating nodes
  themselves.
- Remove ilist_traits::deleteNode, by (1) asserting that lists are empty
  on destruction and (2) changing API that calls it to take a Deleter
  functor (intrusive lists shouldn't be in the memory management
  business).
- Reconfigure the remaining callback traits (addNodeToList, etc.) to be
  higher-level, pulling out a simple_ilist<T> that is much easier to
  read and understand.
- Allow tags (e.g., ilist_node<T,tag1> and ilist_node<T,tag2>) so that T
  can be a member of multiple intrusive lists.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279314 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRevert "[SimplifyCFG] Rewrite SinkThenElseCodeToEnd"
Reid Kleckner [Fri, 19 Aug 2016 20:22:39 +0000 (20:22 +0000)]
Revert "[SimplifyCFG] Rewrite SinkThenElseCodeToEnd"

This reverts commit r279229. It breaks intrinsic function calls in
diamonds.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279313 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoReapply "ADT: Tidy up ilist_traits static asserts, NFC"
Duncan P. N. Exon Smith [Fri, 19 Aug 2016 20:17:23 +0000 (20:17 +0000)]
Reapply "ADT: Tidy up ilist_traits static asserts, NFC"

This spiritually reapplies r279012 (reverted in r279052) without the
r278974 parts.  The differences:

  - Only the HasGetNext trait exists here, so I've only cleaned up (and
    tested) it.  I still added HasObsoleteCustomization since I know
    this will be expanding when r278974 is reapplied.

  - I changed the unit tests to use static_assert to catch problems
    earlier in the build.

  - I added negative tests for the type traits.

Original commit message follows.

----

Change the ilist traits to use decltype instead of sizeof, and add
HasObsoleteCustomization so that additions to this list don't
need to be added in two places.

I suspect this will now work with MSVC, since the trait tested in
r278991 seems to work.  If for some reason it continues to fail on
Windows I'll follow up by adding back the #ifndef _MSC_VER.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279312 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoGlobalISel: translate floating-point constants
Tim Northover [Fri, 19 Aug 2016 20:09:15 +0000 (20:09 +0000)]
GlobalISel: translate floating-point constants

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279311 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoGlobalISel: translate float/int conversion instructions.
Tim Northover [Fri, 19 Aug 2016 20:09:11 +0000 (20:09 +0000)]
GlobalISel: translate float/int conversion instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279310 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoGlobalISel: support translating select instructions.
Tim Northover [Fri, 19 Aug 2016 20:09:07 +0000 (20:09 +0000)]
GlobalISel: support translating select instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279309 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoGlobalISel: fix insert/extract to work on ConstantExprs too.
Tim Northover [Fri, 19 Aug 2016 20:09:03 +0000 (20:09 +0000)]
GlobalISel: fix insert/extract to work on ConstantExprs too.

No tests yet unfortunately (ConstantFolding reduces all supported constants to
ConstantInts before we get to translation). Soon.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279308 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoGlobalISel: fix stale comment
Tim Northover [Fri, 19 Aug 2016 20:09:01 +0000 (20:09 +0000)]
GlobalISel: fix stale comment

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279307 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoGlobalISel: translate insertvalue instructions.
Tim Northover [Fri, 19 Aug 2016 20:08:55 +0000 (20:08 +0000)]
GlobalISel: translate insertvalue instructions.

This adds a G_INSERT instruction, which technically makes G_SEQUENCE redundant
(it's equivalent to a G_INSERT into an IMPLICIT_DEF). We'll leave G_SEQUENCE
for now though: it's likely to be far more common as it's a fundamental part of
legalization, so avoiding the mess and bloat of the extra IMPLICIT_DEFs is
probably worthwhile.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279306 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoMachineScheduler: Add constructor functions for the DAGMutations
Tom Stellard [Fri, 19 Aug 2016 19:59:18 +0000 (19:59 +0000)]
MachineScheduler: Add constructor functions for the DAGMutations

Summary: This way they can be re-used by target-specific schedulers.

Reviewers: atrick, MatzeB, kparzysz

Subscribers: kparzysz, llvm-commits, MatzeB

Differential Revision: https://reviews.llvm.org/D23678

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279305 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Hexagon] Add RUN line to test
Krzysztof Parzyszek [Fri, 19 Aug 2016 19:36:35 +0000 (19:36 +0000)]
[Hexagon] Add RUN line to test

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279304 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Hexagon] Fix subesthetic indentation
Krzysztof Parzyszek [Fri, 19 Aug 2016 19:29:15 +0000 (19:29 +0000)]
[Hexagon] Fix subesthetic indentation

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279303 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Hexagon] Allow i1 values for 'r' constraint in inline-asm
Krzysztof Parzyszek [Fri, 19 Aug 2016 19:17:28 +0000 (19:17 +0000)]
[Hexagon] Allow i1 values for 'r' constraint in inline-asm

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279302 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[CostModel][X86] Added sub, or, and, fadd and fsub costs and missing 512-bit mul...
Simon Pilgrim [Fri, 19 Aug 2016 19:07:10 +0000 (19:07 +0000)]
[CostModel][X86] Added sub, or, and, fadd and fsub costs and missing 512-bit mul costs

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279301 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[InstCombine] remove an icmp fold that is already handled by InstSimplify
Sanjay Patel [Fri, 19 Aug 2016 19:03:07 +0000 (19:03 +0000)]
[InstCombine] remove an icmp fold that is already handled by InstSimplify

Specifically, this is done near the end of "SimplifyICmpInst" using
computeKnownBits() as the broader solution. There are even vector
tests (yay!) for this in test/Transforms/InstSimplify/compare.ll.

I considered putting an assert here instead of just deleting, but
then we could assert every possible fold in InstSimplify in
InstCombine, so...less is more?

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279300 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoAdd missing #include found by modules build.
Richard Smith [Fri, 19 Aug 2016 18:57:17 +0000 (18:57 +0000)]
Add missing #include found by modules build.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279298 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Hexagon] Do not cache alloca instructions during isel
Krzysztof Parzyszek [Fri, 19 Aug 2016 18:46:13 +0000 (18:46 +0000)]
[Hexagon] Do not cache alloca instructions during isel

They can be deleted or replicated, so the cache may become outdated.
They only need to be visited once during frame lowering, so just scan
the function instead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279297 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[PM] Re-instate r279227 and r279228 with a fix to the way the templating
Chandler Carruth [Fri, 19 Aug 2016 18:36:06 +0000 (18:36 +0000)]
[PM] Re-instate r279227 and r279228 with a fix to the way the templating
was done to hopefully appease MSVC.

As an upside, this also implements the suggestion Sanjoy made in code
review, so two for one! =]

I'll be watching the bots to see if there are still issues.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279295 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoGlobalISel: improve representation of G_SEQUENCE and G_EXTRACT
Tim Northover [Fri, 19 Aug 2016 18:32:14 +0000 (18:32 +0000)]
GlobalISel: improve representation of G_SEQUENCE and G_EXTRACT

First, make sure all types involved are represented, rather than being implicit
from the register width.

Second, canonicalize all types to scalar. These operations just act in bits and
don't care about vectors.

Also standardize spelling of Indices in the MachineIRBuilder (NFC here).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279294 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[CostModel][X86] Added some AVX512 and 512-bit vector cost tests
Simon Pilgrim [Fri, 19 Aug 2016 18:24:10 +0000 (18:24 +0000)]
[CostModel][X86] Added some AVX512 and 512-bit vector cost tests

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279291 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRevert "IfConversion: Rescan diamonds."
Kyle Butt [Fri, 19 Aug 2016 18:17:06 +0000 (18:17 +0000)]
Revert "IfConversion: Rescan diamonds."

This reverts commit bfd62a4b4465dd21811bf615c3b04c30ddb09f7b.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279289 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRevert "CodeGen: If Convert blocks that would form a diamond when tail-merged."
Kyle Butt [Fri, 19 Aug 2016 18:17:04 +0000 (18:17 +0000)]
Revert "CodeGen: If Convert blocks that would form a diamond when tail-merged."

This reverts commit 0fda93481c4231c06b838ef476c0c404c51ff875.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279288 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoGlobalISel: allow extractvalue to extract an aggregate.
Tim Northover [Fri, 19 Aug 2016 18:09:41 +0000 (18:09 +0000)]
GlobalISel: allow extractvalue to extract an aggregate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279287 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Hexagon] Fixes for new-value jump formation
Krzysztof Parzyszek [Fri, 19 Aug 2016 17:54:49 +0000 (17:54 +0000)]
[Hexagon] Fixes for new-value jump formation

- Recognize C2_cmpgtui, S2_tstbit_i, and S4_ntstbit_i.
- Avoid creating new-value instructions with both source operands equal.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279286 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoGlobalISel: support translation of extractvalue instructions.
Tim Northover [Fri, 19 Aug 2016 17:47:05 +0000 (17:47 +0000)]
GlobalISel: support translation of extractvalue instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279285 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[CostModel][X86] Add fdiv + frem cost tests
Simon Pilgrim [Fri, 19 Aug 2016 17:39:00 +0000 (17:39 +0000)]
[CostModel][X86] Add fdiv + frem cost tests

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279283 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[InstCombine] use local variables to reduce code in foldICmpShlConstant; NFC
Sanjay Patel [Fri, 19 Aug 2016 17:34:05 +0000 (17:34 +0000)]
[InstCombine] use local variables to reduce code in foldICmpShlConstant; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279282 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Hexagon] Fix a few omissions in HexagonInstrInfo
Krzysztof Parzyszek [Fri, 19 Aug 2016 17:20:57 +0000 (17:20 +0000)]
[Hexagon] Fix a few omissions in HexagonInstrInfo

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279280 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[InstCombine] rename variables in foldICmpShlConstant(); NFC
Sanjay Patel [Fri, 19 Aug 2016 17:20:37 +0000 (17:20 +0000)]
[InstCombine] rename variables in foldICmpShlConstant(); NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279279 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoGlobalISel: support overflow arithmetic intrinsics.
Tim Northover [Fri, 19 Aug 2016 17:17:06 +0000 (17:17 +0000)]
GlobalISel: support overflow arithmetic intrinsics.

Unsigned addition and subtraction can reuse the instructions created to
legalize large width operations (i.e. both produce and consume a carry flag).
Signed operations and multiplies get a dedicated op-with-overflow instruction.

Once this is produced the two values are combined into a struct register (which
will almost always be merged with a corresponding G_EXTRACT as part of
legalization).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279278 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRevert "[asan] Optimize store size in FunctionStackPoisoner::poisonRedZones"
Vitaly Buka [Fri, 19 Aug 2016 17:15:38 +0000 (17:15 +0000)]
Revert "[asan] Optimize store size in FunctionStackPoisoner::poisonRedZones"

This reverts commit r279178.

Speculative revert in hope to fix asan crash on arm.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279277 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRevert "[asan] Fix size of shadow incorrectly calculated in r279178"
Vitaly Buka [Fri, 19 Aug 2016 17:15:33 +0000 (17:15 +0000)]
Revert "[asan] Fix size of shadow incorrectly calculated in r279178"

This reverts commit r279222.

Speculative revert in hope to fix asan crash on arm.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279276 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[RuntimeDyld] Revert r279182 and 279201 -- they broke some ARM bots.
Lang Hames [Fri, 19 Aug 2016 17:06:39 +0000 (17:06 +0000)]
[RuntimeDyld] Revert r279182 and 279201 -- they broke some ARM bots.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279275 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[AliasSetTracker] Degrade AliasSetTracker when may-alias sets get too large.
Michael Kuperstein [Fri, 19 Aug 2016 17:05:22 +0000 (17:05 +0000)]
[AliasSetTracker] Degrade AliasSetTracker when may-alias sets get too large.

Repeated inserts into AliasSetTracker have quadratic behavior - inserting a
pointer into AST is linear, since it requires walking over all "may" alias
sets and running an alias check vs. every pointer in the set.

We can avoid this by tracking the total number of pointers in "may" sets,
and when that number exceeds a threshold, declare the tracker "saturated".
This lumps all pointers into a single "may" set that aliases every other
pointer.

(This is a stop-gap solution until we migrate to MemorySSA)

This fixes PR28832.
Differential Revision: https://reviews.llvm.org/D23432

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279274 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[X86][SSE] Generalised combining to VZEXT_MOVL to any vector size
Simon Pilgrim [Fri, 19 Aug 2016 17:02:00 +0000 (17:02 +0000)]
[X86][SSE] Generalised combining to VZEXT_MOVL to any vector size

This doesn't change tests codegen as we already combined to blend+zero which is what we lower VZEXT_MOVL to on SSE41+ targets, but it does put us in a better position when we improve shuffling for optsize.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279273 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Hexagon] Enforce LLSC packetization rules
Krzysztof Parzyszek [Fri, 19 Aug 2016 16:57:05 +0000 (16:57 +0000)]
[Hexagon] Enforce LLSC packetization rules

Ensure that load locked and store conditional instructions are only
packetized with ALU32 instructions.

Patch by Ben Craig.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279272 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoFix regression in InstCombine introduced by r278944
Reid Kleckner [Fri, 19 Aug 2016 16:53:18 +0000 (16:53 +0000)]
Fix regression in InstCombine introduced by r278944

The intended transform is:
  // Simplify icmp eq (or (ptrtoint P), (ptrtoint Q)), 0
  // -> and (icmp eq P, null), (icmp eq Q, null).

P and Q are both pointer types, but may have different types. We need
two calls to getNullValue() to make the icmps.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279271 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoMachineScheduler: Make some GenericScheduler member variables protected
Tom Stellard [Fri, 19 Aug 2016 16:44:32 +0000 (16:44 +0000)]
MachineScheduler: Make some GenericScheduler member variables protected

Summary: We will need these in AMDGPU's new SchedStrategy implmentation.

Reviewers: MatzeB, atrick

Subscribers: llvm-commits, MatzeB

Differential Revision: https://reviews.llvm.org/D23679

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279270 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Hexagon] Minor updates to register definitions
Krzysztof Parzyszek [Fri, 19 Aug 2016 16:40:19 +0000 (16:40 +0000)]
[Hexagon] Minor updates to register definitions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279269 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[CloneFunction] Don't remove unrelated nodes from the CGSSC
David Majnemer [Fri, 19 Aug 2016 16:37:40 +0000 (16:37 +0000)]
[CloneFunction] Don't remove unrelated nodes from the CGSSC

CGSCC use a WeakVH to track call sites.  RAUW a call within a function
can result in that WeakVH getting confused about whether or not the call
site is still around.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279268 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Hexagon] Fix incorrect generation of S4_subi_asl_ri
Krzysztof Parzyszek [Fri, 19 Aug 2016 16:35:05 +0000 (16:35 +0000)]
[Hexagon] Fix incorrect generation of S4_subi_asl_ri

Patch by Jyotsna Verma.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279267 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[InstCombine] use m_APInt to allow icmp (shl 1, Y), C folds for splat constant vectors
Sanjay Patel [Fri, 19 Aug 2016 16:12:16 +0000 (16:12 +0000)]
[InstCombine] use m_APInt to allow icmp (shl 1, Y), C folds for splat constant vectors

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279266 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Hexagon] Add missing pattern for C4_cmplte
Krzysztof Parzyszek [Fri, 19 Aug 2016 16:11:33 +0000 (16:11 +0000)]
[Hexagon] Add missing pattern for C4_cmplte

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279265 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[InstCombine] use m_APInt to allow icmp X, C folds for splat constant vectors
Sanjay Patel [Fri, 19 Aug 2016 15:40:44 +0000 (15:40 +0000)]
[InstCombine] use m_APInt to allow icmp X, C folds for splat constant vectors

Of course, we really need to refactor and fix all of the cmp predicates,
but this one is interesting because without it, we later perform an
information-losing transform of icmp (shl 1, Y), C, and we can't recover
the better fold.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279263 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[LTO] Remove dead-code: collectUsedGlobalVariables has been moved to Thin and LTO...
Mehdi Amini [Fri, 19 Aug 2016 15:35:44 +0000 (15:35 +0000)]
[LTO] Remove dead-code: collectUsedGlobalVariables has been moved to Thin and LTO specifc path (NFC)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279261 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[InstCombine] add tests for missing vector icmp folds
Sanjay Patel [Fri, 19 Aug 2016 15:27:28 +0000 (15:27 +0000)]
[InstCombine] add tests for missing vector icmp folds

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279259 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[InstCombine] add missing tests for basic icmp folds
Sanjay Patel [Fri, 19 Aug 2016 15:21:45 +0000 (15:21 +0000)]
[InstCombine] add missing tests for basic icmp folds

These are implicitly included as part of larger test cases, but they don't
exist stand-alone (and don't happen for vectors...).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279257 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Hexagon] Make p0 an explicit operand in VA1_clr* subinstructions, NFC
Krzysztof Parzyszek [Fri, 19 Aug 2016 15:17:19 +0000 (15:17 +0000)]
[Hexagon] Make p0 an explicit operand in VA1_clr* subinstructions, NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279255 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Hexagon] Add explicit default constructor for HexagonSelectionDAGInfo
Krzysztof Parzyszek [Fri, 19 Aug 2016 15:13:54 +0000 (15:13 +0000)]
[Hexagon] Add explicit default constructor for HexagonSelectionDAGInfo

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279254 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoUnxfail passing tests on Hexagon
Krzysztof Parzyszek [Fri, 19 Aug 2016 15:07:58 +0000 (15:07 +0000)]
Unxfail passing tests on Hexagon

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279252 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Hexagon] Allow tail-call optimization when mixing C and fast calling conv
Krzysztof Parzyszek [Fri, 19 Aug 2016 15:02:18 +0000 (15:02 +0000)]
[Hexagon] Allow tail-call optimization when mixing C and fast calling conv

Patch by Arnold Schwaighofer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279251 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Hexagon] Check for empty live interval
Krzysztof Parzyszek [Fri, 19 Aug 2016 14:29:43 +0000 (14:29 +0000)]
[Hexagon] Check for empty live interval

Patch by Brendon Cahoon.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279249 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Hexagon] Consider zext/sext of a load to i32 to be free
Krzysztof Parzyszek [Fri, 19 Aug 2016 14:22:07 +0000 (14:22 +0000)]
[Hexagon] Consider zext/sext of a load to i32 to be free

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279248 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRevert r279242 - it's failing the tests
Anton Korobeynikov [Fri, 19 Aug 2016 14:18:34 +0000 (14:18 +0000)]
Revert r279242 - it's failing the tests

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279247 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Hexagon] Handle J2_jumptpt and J2_jumpfpt instructions
Krzysztof Parzyszek [Fri, 19 Aug 2016 14:14:09 +0000 (14:14 +0000)]
[Hexagon] Handle J2_jumptpt and J2_jumpfpt instructions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279246 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Hexagon] Fix indentation, NFC
Krzysztof Parzyszek [Fri, 19 Aug 2016 14:12:51 +0000 (14:12 +0000)]
[Hexagon] Fix indentation, NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279245 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Hexagon] Remove unnecessary llvm::, NFC
Krzysztof Parzyszek [Fri, 19 Aug 2016 14:10:57 +0000 (14:10 +0000)]
[Hexagon] Remove unnecessary llvm::, NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279244 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Hexagon] Rename the HEXAGON_MC namespace to Hexagon_MC, NFC
Krzysztof Parzyszek [Fri, 19 Aug 2016 14:09:47 +0000 (14:09 +0000)]
[Hexagon] Rename the HEXAGON_MC namespace to Hexagon_MC, NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279243 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoFix PR27500: on MSP430 the branch destination offset is measured in words, not bytes.
Anton Korobeynikov [Fri, 19 Aug 2016 14:07:10 +0000 (14:07 +0000)]
Fix PR27500: on MSP430 the branch destination offset is measured in words, not bytes.
In addition, the branch instructions will have proper BB destinations, not offsets, like before.

Patch by Vadzim Dambrouski!

Differential Revision: https://reviews.llvm.org/D20162

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279242 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Hexagon] Mark PS_jumpret as pseudo-instruction, expand it into J2_jumpr
Krzysztof Parzyszek [Fri, 19 Aug 2016 14:04:45 +0000 (14:04 +0000)]
[Hexagon] Mark PS_jumpret as pseudo-instruction, expand it into J2_jumpr

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279241 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Hexagon] Improvements to handling and generation of FP instructions
Krzysztof Parzyszek [Fri, 19 Aug 2016 13:34:31 +0000 (13:34 +0000)]
[Hexagon] Improvements to handling and generation of FP instructions

Improved handling of fma, floating point min/max, additional load/store
instructions for floating point types.

Patch by Jyotsna Verma.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279239 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[LoopVectorize] Don't copy std::vector in for-range loop.
Benjamin Kramer [Fri, 19 Aug 2016 12:44:24 +0000 (12:44 +0000)]
[LoopVectorize] Don't copy std::vector in for-range loop.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279233 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[PM] Revert r279227 and r279228 until I can find someone to help me
Chandler Carruth [Fri, 19 Aug 2016 10:51:55 +0000 (10:51 +0000)]
[PM] Revert r279227 and r279228 until I can find someone to help me
solve completely opaque MSVC build errors. It complains about lots of
stuff with this change without givin nearly enough information to even
try to fix.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279231 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[X86][SSE] Add support for matching commuted insertps patterns
Simon Pilgrim [Fri, 19 Aug 2016 10:31:53 +0000 (10:31 +0000)]
[X86][SSE] Add support for matching commuted insertps patterns

INSERTPS doesn't fit well with our shuffle mask canonicalization, so we need to attempt both the original mask and the commuted mask to more likely get a match

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279230 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[SimplifyCFG] Rewrite SinkThenElseCodeToEnd
James Molloy [Fri, 19 Aug 2016 10:10:27 +0000 (10:10 +0000)]
[SimplifyCFG] Rewrite SinkThenElseCodeToEnd

The new version has several advantages:
  1) IMSHO it's more readable and neater
  2) It handles loads and stores properly
  3) It can handle any number of incoming blocks rather than just two. I'll be taking advantage of this in a followup patch.

With this change we can now finally sink load-modify-store idioms such as:

    if (a)
      return *b += 3;
    else
      return *b += 4;

    =>

    %z = load i32, i32* %y
    %.sink = select i1 %a, i32 5, i32 7
    %b = add i32 %z, %.sink
    store i32 %b, i32* %y
    ret i32 %b

When this works for switches it'll be even more powerful.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279229 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[PM] Fix a compile error with GCC. NFC.
Chandler Carruth [Fri, 19 Aug 2016 09:53:10 +0000 (09:53 +0000)]
[PM] Fix a compile error with GCC. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279228 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[PM] Make the the new pass manager support fully generic extra arguments
Chandler Carruth [Fri, 19 Aug 2016 09:45:16 +0000 (09:45 +0000)]
[PM] Make the the new pass manager support fully generic extra arguments
to run methods, both for transform passes and analysis passes.

This also allows the analysis manager to use a different set of extra
arguments from the pass manager where useful. Consider passes over
analysis produced units of IR like SCCs of the call graph or loops.
Passes of this nature will often want to refer to the analysis result
that was used to compute their IR units (the call graph or LoopInfo).
And for transformations, they may want to communicate special update
information to the outer pass manager. With this change, it becomes
possible to have a run method for a loop pass that looks more like:

  PreservedAnalyses run(Loop &L, AnalysisManager<Loop, LoopInfo> &AM,
                        LoopInfo &LI, LoopUpdateRecord &UR);

And to query the analysis manager like:

    AM.getResult<MyLoopAnalysis>(L, LI);

This makes accessing the known-available analyses convenient and clear,
and it makes passing customized data structures around easy.

My initial use case is going to be in updating the pass manager layers
when the analysis units of IR change. But there are more use cases here
such as having a layer that lets inner passes signal whether certain
additional passes should be run because of particular simplifications
made. Two desires for this have come up in the past: triggering
additional optimization after successfully unrolling loops, and
triggering additional inlining after collapsing indirect calls to direct
calls.

Despite adding this layer of generic extensibility, the *only* change to
existing, simple usage are for places where we forward declare the
AnalysisManager template. We really shouldn't be doing this because of
the fragility exposed here, but currently it makes coping with the
legacy PM code easier.

Differential Revision: http://reviews.llvm.org/D21462

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279227 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[PM] Try to work-around what appears to be an MSVC SFINAE issue with
Chandler Carruth [Fri, 19 Aug 2016 09:26:00 +0000 (09:26 +0000)]
[PM] Try to work-around what appears to be an MSVC SFINAE issue with
r279217 where it fails to select the path that other compilers select.

The workaround won't be as careful to produce an error when an analysis
result is incorrect, but we can rely on non-MSVC builds to catch such
errors it seems and MSVC doesn't seem to support the alternative
techniques.

Hoping this brings the windows bots back to life. If not, will have to
revert all of this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279225 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[CodeGen] Fix a trivial type conversion bug dating back to pre-2008
James Molloy [Fri, 19 Aug 2016 08:38:50 +0000 (08:38 +0000)]
[CodeGen] Fix a trivial type conversion bug dating back to pre-2008

The heuristic above this code is incredibly suspect, but disregarding that it mutates the cast opcode so we need to check the *mutated* opcode later to see if we need to emit an AssertSext or AssertZext node.

Fixes PR29041.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279223 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[asan] Fix size of shadow incorrectly calculated in r279178
Vitaly Buka [Fri, 19 Aug 2016 08:33:53 +0000 (08:33 +0000)]
[asan] Fix size of shadow incorrectly calculated in r279178

Summary: r279178 generates 8 times more stores than necessary.

Reviewers: eugenis

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D23708

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279222 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[PM] NFC refactoring: remove the AnalysisManagerBase class, folding it
Chandler Carruth [Fri, 19 Aug 2016 08:31:47 +0000 (08:31 +0000)]
[PM] NFC refactoring: remove the AnalysisManagerBase class, folding it
into the AnalysisManager class template.

Back when I first added this base class there were separate analysis
managers and some plausible reason why it would be a useful factoring of
common code between them. However, after a lot of refactoring cleaning,
we now have *entirely* shared code. The base class was just an arbitrary
division between code in one class template and a separate class
template. It didn't add anything and forced lots of indirection through
"derived_this" for no real gain.

We can always factor a base CRTP class out with common code if there is
ever some *other* analysis manager that wants to share a subset of
logic. But for now, folding things into the primary template is
a non-trivial simplification with no down sides I see. It shortens the
code considerably, removes an unhelpful abstraction, and will make
subsequent patches *dramatically* less complex which enhance the
analysis manager infrastructure to effectively cope with invalidation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279221 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[modules] Add missing include.
Vassil Vassilev [Fri, 19 Aug 2016 08:30:42 +0000 (08:30 +0000)]
[modules] Add missing include.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279219 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[PM] Redesign how the new PM detects whether an analysis result provides
Chandler Carruth [Fri, 19 Aug 2016 07:49:23 +0000 (07:49 +0000)]
[PM] Redesign how the new PM detects whether an analysis result provides
its own invalidate method.

Previously, the technique would assume that if a result didn't have an
invalidate method that didn't exactly match the expected signature it
didn't have one at all. This is in fact not the case. And we had
analyses with incorrect signatures for the invalidate method in the
tree that would be erroneously invalidated in certain cases! Yikes.

Moreover a result might legitimately want to have multiple overloads for
the invalidate method, and if one changes or a new one is needed we
again really want a compiler error. For example in the tree we had not
added the overload for a *function* IR unit to the invalidate routine
for TLI. Doh.

So a new techique for the SFINAE detection here: if the result has *any*
member spelled "invalidate" we turn off the synthesis of a default
version. We don't care if it is a member function or a member variable
or how many overloads there are. Once a result has something by that
name it must provide suitable overloads for the contexts in which it is
used. This seems much more resilient and durable.

Huge props to Richard Smith who helped me figure out how on earth we
could even do this in C++. It took quite some doing. The technique is
remarkably clean however, and merely requires that the analysis results
are not *final* classes. I think that's a requirement we can live with
even if it is a bit odd.

I've fixed the two bad in-tree analysis results. And this will make my
next change which changes the API for invalidate much easier to
validate as correct.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279217 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[PM] Rework the new PM support for building the ModuleSummaryIndex to
Chandler Carruth [Fri, 19 Aug 2016 07:49:19 +0000 (07:49 +0000)]
[PM] Rework the new PM support for building the ModuleSummaryIndex to
directly produce the index as the value type result.

This requires making the index movable which is straightforward. It
greatly simplifies things by allowing us to completely avoid the builder
API and the layers of abstraction inherent there. Instead both pass
managers can directly construct these when run by value. They still
won't be constructed truly eagerly thanks to the optional in the legacy
PM. The code that directly builds the index can also just share a direct
function.

A notable change here is that the result type of the analysis for the
new PM is no longer a reference type. This was really problematic when
making changes to how we handle result types to make our interface
requirements *much* more strict and precise. But I think this is an
overall improvement.

Differential Revision: https://reviews.llvm.org/D23701

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279216 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoFix tests in llvm/test/tools/gold/X86 to satisfy r279014.
NAKAMURA Takumi [Fri, 19 Aug 2016 06:44:44 +0000 (06:44 +0000)]
Fix tests in llvm/test/tools/gold/X86 to satisfy r279014.

They would unexpectedly pass if test/tools/gold/X86/Output had outputs of previous tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279214 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Profile] Fix edge count read bug
Xinliang David Li [Fri, 19 Aug 2016 06:31:45 +0000 (06:31 +0000)]
[Profile] Fix edge count read bug

 Use uint64_t to avoid value truncation before scaling.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279213 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[LTO] Move callback member from base class to the derived where it is used (NFC)
Mehdi Amini [Fri, 19 Aug 2016 06:10:03 +0000 (06:10 +0000)]
[LTO] Move callback member from base class to the derived where it is used (NFC)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279212 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoConstify some path in the bitcode writer (NFC)
Mehdi Amini [Fri, 19 Aug 2016 06:06:18 +0000 (06:06 +0000)]
Constify some path in the bitcode writer (NFC)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279211 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[LTO] Add a move to inialize member in ctor initialization list (NFC)
Mehdi Amini [Fri, 19 Aug 2016 05:56:37 +0000 (05:56 +0000)]
[LTO] Add a move to inialize member in ctor initialization list (NFC)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279210 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Profile] Simple code refactoring for reuse /NFC
Xinliang David Li [Fri, 19 Aug 2016 05:31:33 +0000 (05:31 +0000)]
[Profile] Simple code refactoring for reuse /NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279209 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[XRay] Synthesize a reference to the xray_instr_map
Dean Michael Berris [Fri, 19 Aug 2016 04:44:30 +0000 (04:44 +0000)]
[XRay] Synthesize a reference to the xray_instr_map

Without the synthesized reference to a symbol in the xray_instr_map,
linker section garbage collection will helpfully remove the whole
xray_instr_map section from the final executable (or archive). This will
cause the runtime to not be able to identify the sleds and hot-patch the
calls/jumps into the runtime trampolines.

This change adds a reference from the text section at the end of the
function to keep around the associated xray_instr_map section as well.

We also make sure that we catch this reference in the test.

Reviewers: chandlerc, echristo, majnemer, mehdi_amini

Subscribers: mehdi_amini, llvm-commits, dberris

Differential Revision: https://reviews.llvm.org/D23398

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279204 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[RuntimeDyld][MCJIT] Un-XFAIL some tests that were fixed by r279182.
Lang Hames [Fri, 19 Aug 2016 03:12:16 +0000 (03:12 +0000)]
[RuntimeDyld][MCJIT] Un-XFAIL some tests that were fixed by r279182.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279201 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRevert "RegScavenging: Add scavengeRegisterBackwards()"
Matthias Braun [Fri, 19 Aug 2016 03:03:24 +0000 (03:03 +0000)]
Revert "RegScavenging: Add scavengeRegisterBackwards()"

The ppc64 multistage bot fails on this.

This reverts commit r279124.

Also Revert "CodeGen: Add/Factor out LiveRegUnits class; NFCI" because it depends on the previous change
This reverts commit r279171.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279199 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[ADT] Add the worlds simplest STL extra. Or at least close to it.
Chandler Carruth [Fri, 19 Aug 2016 02:07:51 +0000 (02:07 +0000)]
[ADT] Add the worlds simplest STL extra. Or at least close to it.

This is a little class template that just builds an inheritance chain of
empty classes. Despite how simple this is, it can be used to really
nicely create ranked overload sets. I've added a unittest as much to
document this as test it. You can pass an object of this type as an
argument to a function overload set an it will call the first viable and
enabled candidate at or below the rank of the object.

I'm planning to use this in a subsequent commit to more clearly rank
overload candidates used for SFINAE. All credit for this technique and
both lines of code here to Richard Smith who was helping me rewrite the
SFINAE check in question to much more effectively capture the intended
set of checks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279197 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[RuntimeDyld] Add support for ELF R_ARM_REL32 and R_ARM_GOT_PREL.
Lang Hames [Fri, 19 Aug 2016 01:15:39 +0000 (01:15 +0000)]
[RuntimeDyld] Add support for ELF R_ARM_REL32 and R_ARM_GOT_PREL.

Patch by William Dillon. Thanks William!

This patch adds support for the R_ARM_REL32 and R_ARM_GOT_PREL ELF ARM
relocations to RuntimeDyld, which should allow JITing of code that
produces these relocations.

No test case: Unfortunately RuntimeDyldELF's GOT building mechanism (which
uses a separate section for GOT entries) isn't compatible with
RuntimeDyldChecker. The correct fix for this is to fix RuntimeDyldELF's GOT
support (it's fundamentally broken at the moment: separate sections aren't
guaranteed to be in range of a GOT entry load), but that's a non-trivial job.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279182 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[asan] Optimize store size in FunctionStackPoisoner::poisonRedZones
Vitaly Buka [Thu, 18 Aug 2016 23:51:15 +0000 (23:51 +0000)]
[asan] Optimize store size in FunctionStackPoisoner::poisonRedZones

Summary: Reduce store size to avoid leading and trailing zeros.

Reviewers: kcc, eugenis

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D23648

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279178 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoInclude X86CallFrameOptimization in the opt-bisect process.
Andrew Kaylor [Thu, 18 Aug 2016 22:49:51 +0000 (22:49 +0000)]
Include X86CallFrameOptimization in the opt-bisect process.

Differential Revision: https://reviews.llvm.org/D23683

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279175 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoAArch64: remove extraneous padding
Saleem Abdulrasool [Thu, 18 Aug 2016 22:35:06 +0000 (22:35 +0000)]
AArch64: remove extraneous padding

The structs BarrierOp, PrefetchOp, PSBHintOp are in AArch64AsmParser.cpp
(inside anonymous namespace).  This diff changes the order of fields and
removes the excessive padding (8 bytes).

Patch by Alexander Shaposhnikov!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279173 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[CMake] Add variables for tracking which runtimes are included
Chris Bieneman [Thu, 18 Aug 2016 22:18:11 +0000 (22:18 +0000)]
[CMake] Add variables for tracking which runtimes are included

This allows sub-projects to have conditionals based on the presence of other projects.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279172 91177308-0d34-0410-b5e6-96231b3b80d8