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5 years ago[NFC][AArch64] Split out backend features
Diogo N. Sampaio [Thu, 6 Dec 2018 15:39:17 +0000 (15:39 +0000)]
[NFC][AArch64] Split out backend features

This patch splits backend features currently
hidden behind architecture versions.

For example, currently the only way to activate
complex numbers extension is targeting an v8.3
architecture, where after the patch this extension
can be added separately.

This refactoring is required by the new command lines proposal:
http://lists.llvm.org/pipermail/llvm-dev/2018-September/126346.html

Reviewers: DavidSpickett, olista01, t.p.northover

Subscribers: kristof.beyls, bryanpkc, javed.absar, pbarrio

Differential revision: https://reviews.llvm.org/D54633

--

It was reverted in rL348249 due a build bot failure in one of the
regression tests:
http://lab.llvm.org:8011/builders/llvm-clang-x86_64-expensive-checks-win/builds/14386

The problem seems to be that FileCheck behaves
different in windows and linux. This new patch
splits the test file in multiple,
and does more exact pattern matching attempting
to circumvent the issue.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348493 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[ARM][NFC] Adding another test for armcgp
Sam Parker [Thu, 6 Dec 2018 15:13:44 +0000 (15:13 +0000)]
[ARM][NFC] Adding another test for armcgp

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348489 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoAMDGPU: Generate VALU ThreeOp Integer instructions
Nicolai Haehnle [Thu, 6 Dec 2018 14:33:40 +0000 (14:33 +0000)]
AMDGPU: Generate VALU ThreeOp Integer instructions

Summary:
Original patch by: Fabian Wahlster <razor@singul4rity.com>

Change-Id: I148f692a88432541fad468963f58da9ddf79fac5

Reviewers: arsenm, rampitec

Subscribers: kzhuravl, jvesely, wdng, yaxunl, dstuttard, tpr, t-tye, b-sumner, llvm-commits

Differential Revision: https://reviews.llvm.org/D51995

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348488 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[AMDGPU] Partial revert of rL348371: Turn on the DPP combiner by default
Valery Pykhtin [Thu, 6 Dec 2018 14:20:02 +0000 (14:20 +0000)]
[AMDGPU] Partial revert of rL348371: Turn on the DPP combiner by default

Turn the combiner back off as there're failures until the issue is fixed.

Differential revision: https://reviews.llvm.org/D55314

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348487 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoFix -Wcovered-switch-default warning. NFCI.
Simon Pilgrim [Thu, 6 Dec 2018 14:02:02 +0000 (14:02 +0000)]
Fix -Wcovered-switch-default warning. NFCI.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348486 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoRevert "[LoopSimplifyCFG] Delete dead in-loop blocks"
Ilya Biryukov [Thu, 6 Dec 2018 13:21:01 +0000 (13:21 +0000)]
Revert "[LoopSimplifyCFG] Delete dead in-loop blocks"

This reverts commit r348457.
The original commit causes clang to crash when doing an instrumented
build with a new pass manager. Reverting to unbreak our integrate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348484 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoTest commit: Removed trailing space in .txt file.
Markus Lavin [Thu, 6 Dec 2018 13:20:27 +0000 (13:20 +0000)]
Test commit: Removed trailing space in .txt file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348483 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[ARM][NFC] Added extra arm-cgp test
Sam Parker [Thu, 6 Dec 2018 12:58:58 +0000 (12:58 +0000)]
[ARM][NFC] Added extra arm-cgp test

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348482 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[X86][NFC] Convert memcpy/memset tests to update_llc_test_checks.
Clement Courbet [Thu, 6 Dec 2018 10:07:12 +0000 (10:07 +0000)]
[X86][NFC] Convert memcpy/memset tests to update_llc_test_checks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348477 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[ARM GlobalISel] Nothing is legal for Thumb
Diana Picus [Thu, 6 Dec 2018 09:26:14 +0000 (09:26 +0000)]
[ARM GlobalISel] Nothing is legal for Thumb

...yet!

A lot of the current code should be shared for arm and thumb mode, but
until we add tests and work out some of the details (e.g. checking the
correct subtarget feature for G_SDIV) it's safer to bail out as early as
possible for thumb targets.

This should have arguably been part of r348347, which allowed Thumb
functions to be handled by the IR Translator.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348472 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[X86][NFC] Add more tests for memset.
Clement Courbet [Thu, 6 Dec 2018 08:48:06 +0000 (08:48 +0000)]
[X86][NFC] Add more tests for memset.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348465 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[llvm-dwarfdump] - Simplify the test case.
George Rimar [Thu, 6 Dec 2018 08:42:57 +0000 (08:42 +0000)]
[llvm-dwarfdump] - Simplify the test case.

The test was fully rewritten for simplification.

New test code was suggested by David Blaikie.

Differential revision: https://reviews.llvm.org/D55261

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348464 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[InstCombine] foldICmpWithLowBitMaskedVal(): don't miscompile -1 vector elts
Roman Lebedev [Thu, 6 Dec 2018 08:14:24 +0000 (08:14 +0000)]
[InstCombine] foldICmpWithLowBitMaskedVal(): don't miscompile -1 vector elts

I was finally able to quantify what i thought was missing in the fix,
it was vector constants. If we have a scalar (and %x, -1),
it will be instsimplified before we reach this code,
but if it is a vector, we may still have a -1 element.

Thus, we want to avoid the fold if *at least one* element is -1.
Or in other words, ignoring the undef elements, no sign bits
should be set. Thus, m_NonNegative().

A follow-up for rL348181
https://bugs.llvm.org/show_bug.cgi?id=39861

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348462 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[NFC][InstCombine] Add more miscompile tests for foldICmpWithLowBitMaskedVal()
Roman Lebedev [Thu, 6 Dec 2018 08:11:20 +0000 (08:11 +0000)]
[NFC][InstCombine] Add more miscompile tests for foldICmpWithLowBitMaskedVal()

We also have to me aware of vector constants. If at least one element
is -1, we can't transform.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348461 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[X86] Remove some leftover code for handling an i1 setcc type. NFC
Craig Topper [Thu, 6 Dec 2018 07:00:02 +0000 (07:00 +0000)]
[X86] Remove some leftover code for handling an i1 setcc type. NFC

We should only need to handle i8 now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348460 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[LoopSimplifyCFG] Delete dead in-loop blocks
Max Kazantsev [Thu, 6 Dec 2018 05:45:02 +0000 (05:45 +0000)]
[LoopSimplifyCFG] Delete dead in-loop blocks

This patch teaches LoopSimplifyCFG to delete loop blocks that have
become unreachable after terminator folding has been done.

Differential Revision: https://reviews.llvm.org/D54023
Reviewed By: anna

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348457 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoInstCombine: Add some missing tests for scalarization
Matt Arsenault [Thu, 6 Dec 2018 03:32:50 +0000 (03:32 +0000)]
InstCombine: Add some missing tests for scalarization

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348456 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[llvm-objcopy] Change --only-keep to --only-section
Jake Ehrlich [Thu, 6 Dec 2018 02:03:53 +0000 (02:03 +0000)]
[llvm-objcopy] Change --only-keep to --only-section

I just hard core goofed when I wrote this and created a different name
for no good reason. I'm failry aware of most "fresh" users of llvm-objcopy
(that is, users which are not using it as a drop in replacement for GNU
objcopy) and can say that only "-j" is being used by such people so this
patch should strictly increase compatibility and not remove it.

Differential Revision: https://reviews.llvm.org/D52180

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348446 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoAArch64: Fix invalid CCMP emission
Matthias Braun [Thu, 6 Dec 2018 01:40:23 +0000 (01:40 +0000)]
AArch64: Fix invalid CCMP emission

The code emitting AND-subtrees used to check whether any of the operands
was an OR in order to figure out if the result needs to be negated.
However the OR could be hidden in further subtrees and not immediately
visible.

Change the code so that canEmitConjunction() determines whether the
result of the generated subtree needs to be negated. Cleanup emission
logic to use this. I also changed the code a bit to make all negation
decisions early before we actually emit the subtrees.

This fixes http://llvm.org/PR39550

Differential Revision: https://reviews.llvm.org/D54137

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348444 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoAdd objc.* ARC intrinsics and codegen them to their runtime methods.
Pete Cooper [Thu, 6 Dec 2018 00:52:54 +0000 (00:52 +0000)]
Add objc.* ARC intrinsics and codegen them to their runtime methods.

Reviewers: erik.pilkington, ahatanak

Differential Revision: https://reviews.llvm.org/D55233

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348441 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[MachineOutliner][NFC] Move yet another std::vector out of a loop
Jessica Paquette [Thu, 6 Dec 2018 00:26:21 +0000 (00:26 +0000)]
[MachineOutliner][NFC] Move yet another std::vector out of a loop

Once again, following the wisdom of the LLVM Programmer's Manual.

I think that's enough refactoring for today. :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348439 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[MachineOutliner][NFC] Move std::vector out of loop
Jessica Paquette [Thu, 6 Dec 2018 00:04:03 +0000 (00:04 +0000)]
[MachineOutliner][NFC] Move std::vector out of loop

See http://llvm.org/docs/ProgrammersManual.html#vector

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348433 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[MachineOutliner][NFC] Remove IntegerInstructionMap from InstructionMapper
Jessica Paquette [Thu, 6 Dec 2018 00:01:51 +0000 (00:01 +0000)]
[MachineOutliner][NFC] Remove IntegerInstructionMap from InstructionMapper

Refactoring.

This map was only used when we used a string of integers to output the outlined
sequence. Since it's no longer used for anything, there's no reason to keep it
around.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348432 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[GlobalISel] Introduce G_BUILD_VECTOR, G_BUILD_VECTOR_TRUNC and G_CONCAT_VECTOR opcodes.
Amara Emerson [Wed, 5 Dec 2018 23:53:30 +0000 (23:53 +0000)]
[GlobalISel] Introduce G_BUILD_VECTOR, G_BUILD_VECTOR_TRUNC and G_CONCAT_VECTOR opcodes.

These opcodes are intended to subsume some of the capability of G_MERGE_VALUES,
as it was too powerful and thus complex to add deal with throughout the GISel
pipeline.

G_BUILD_VECTOR creates a vector value from a sequence of uniformly typed
scalar values. G_BUILD_VECTOR_TRUNC is a special opcode for handling scalar
operands which are larger than the destination vector element type, and
therefore does an implicit truncate.

G_CONCAT_VECTOR creates a vector by concatenating smaller, uniformly typed,
vectors together.

These will be used in a subsequent commit. This commit just adds the initial
infrastructure.

Differential Revision: https://reviews.llvm.org/D53594

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348430 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[MachineOutliner][NFC] Remove buildCandidateList and replace with findCandidates
Jessica Paquette [Wed, 5 Dec 2018 23:39:07 +0000 (23:39 +0000)]
[MachineOutliner][NFC] Remove buildCandidateList and replace with findCandidates

More refactoring.

Since the pruning logic has changed, and the candidate list is gone,
everything can be sunk into findCandidates.

We no longer need to keep track of the length of the longest substring, so we
can drop all of that logic as well.

After this, we just find all of the candidates and move to outlining.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348428 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[MachineOutliner][NFC] Candidates don't need to be shared_ptrs anymore
Jessica Paquette [Wed, 5 Dec 2018 23:24:22 +0000 (23:24 +0000)]
[MachineOutliner][NFC] Candidates don't need to be shared_ptrs anymore

More refactoring.

After the changes to the pruning logic, and removing CandidateList, there's
no reason for Candiates to be shared_ptrs (or pointers at all).

std::shared_ptr<Candidate> -> Candidate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348427 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoRevert r347934 "[SCEV] Guard movement of insertion point for loop-invariants"
David L. Jones [Wed, 5 Dec 2018 23:13:50 +0000 (23:13 +0000)]
Revert r347934 "[SCEV] Guard movement of insertion point for loop-invariants"

This change caused SEGVs in instcombine. (The r347934 change seems to me to be a
precipitating cause, not a root cause. Details are on the llvm-commits thread
for r347934.)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348426 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[WebAssembly] Change event section code to 13
Heejin Ahn [Wed, 5 Dec 2018 23:10:09 +0000 (23:10 +0000)]
[WebAssembly] Change event section code to 13

Summary:
We decided to change the event section code from 12 to 13 as new
`DataCount` section in the bulk memory operations proposal will take the
code 12 instead.

Reviewers: sbc100

Subscribers: dschuff, jgravelle-google, sunfish, llvm-commits

Differential Revision: https://reviews.llvm.org/D55343

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348424 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[InstCombine] remove dead code from visitExtractElement
Sanjay Patel [Wed, 5 Dec 2018 23:09:33 +0000 (23:09 +0000)]
[InstCombine] remove dead code from visitExtractElement

Extracting from a splat constant is always handled by InstSimplify.
Move the test for this from InstCombine to InstSimplify to make
sure that stays true.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348423 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[MachineOutliner][NFC] Remove CandidateList, since it's now unused.
Jessica Paquette [Wed, 5 Dec 2018 22:50:26 +0000 (22:50 +0000)]
[MachineOutliner][NFC] Remove CandidateList, since it's now unused.

After removing the pruning logic, there's no reason to populate a list of
Candidates. Remove CandidateList and update comments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348422 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoFix buildbot capture warning
Jessica Paquette [Wed, 5 Dec 2018 22:47:25 +0000 (22:47 +0000)]
Fix buildbot capture warning

A bot didn't like my lambda. This ought to fix it.

Example:

http://lab.llvm.org:8011/builders/lld-x86_64-win7/builds/30139/steps/build%20lld/logs/stdio

error C3493: 'AlreadyRemoved' cannot be implicitly captured because no default
capture mode has been specified

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348421 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[MachineOutliner][NFC] Simplify and unify pruning/outlining logic
Jessica Paquette [Wed, 5 Dec 2018 22:27:38 +0000 (22:27 +0000)]
[MachineOutliner][NFC] Simplify and unify pruning/outlining logic

Since we're now performing outlining per OutlinedFunction rather than per
Candidate, we can simply outline each candidate as it shows up.

Instead of having a pruning phase, instead, we'll outline entire functions.
Then we'll update the UnsignedVec we mapped to reflect the deletion. If any
candidate is in a space that's marked dirty, then we'll drop it.

This lets us remove the pruning logic entirely, and greatly simplifies the
code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348420 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[InstCombine] reduce duplication in visitExtractElementInst; NFC
Sanjay Patel [Wed, 5 Dec 2018 21:57:51 +0000 (21:57 +0000)]
[InstCombine] reduce duplication in visitExtractElementInst; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348418 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[InstCombine] add/move tests for extractelement; NFC
Sanjay Patel [Wed, 5 Dec 2018 21:56:13 +0000 (21:56 +0000)]
[InstCombine] add/move tests for extractelement; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348417 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoThinLTO: Do not import debug info for imported global constants
David Blaikie [Wed, 5 Dec 2018 21:42:17 +0000 (21:42 +0000)]
ThinLTO: Do not import debug info for imported global constants

It looks like this isn't necessary (in any tests I've done, it results
in the global being described with no location or value in the imported
side - while it's still fully described in the place it's imported from)
& results in significant/pathological debug info growth to home these
location-less global variable descriptions on the import side.

This is a rather pressing/important issue to address - this regressed
executable size for one example I'm looking at by 15%, object size is probably
similar though I haven't measured it, and a 22x increase in the number of CUs
in the cu_index in split DWARF DWP files, creating a similarly large regression
in the time it takes llvm-symbolizer to run on such binaries.

Reviewers: tejohnson, evgeny777

Differential Revision: https://reviews.llvm.org/D55309

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348416 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[MachineOutliner] Outline functions by order of benefit
Jessica Paquette [Wed, 5 Dec 2018 21:36:04 +0000 (21:36 +0000)]
[MachineOutliner] Outline functions by order of benefit

Mostly NFC, only change is the order of outlined function names.

Loop over the outlined functions instead of walking the candidate list.

This is a bit easier to understand. It's far more natural to create a function,
then replace all of its occurrences with calls than the other way around.

The functions outlined after this do not change, but their names will be
decided by their benefit. E.g, OUTLINED_FUNCTION_0 will now always be the
most beneficial function, rather than the first one seen.

This makes it easier to enforce an ordering on the outlined functions. So,
this also adds a test to make sure that the ordering works as expected.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348414 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[Hexagon] Add intrinsics for Hexagon V66
Krzysztof Parzyszek [Wed, 5 Dec 2018 21:14:51 +0000 (21:14 +0000)]
[Hexagon] Add intrinsics for Hexagon V66

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348413 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[Hexagon] Add instruction definitions for Hexagon V66
Krzysztof Parzyszek [Wed, 5 Dec 2018 21:01:07 +0000 (21:01 +0000)]
[Hexagon] Add instruction definitions for Hexagon V66

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348411 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[Hexagon] Foundation of support for Hexagon V66
Krzysztof Parzyszek [Wed, 5 Dec 2018 20:18:09 +0000 (20:18 +0000)]
[Hexagon] Foundation of support for Hexagon V66

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348407 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[GISel]: Provide standard interface to observe changes in GISel passes
Aditya Nandakumar [Wed, 5 Dec 2018 20:14:52 +0000 (20:14 +0000)]
[GISel]: Provide standard interface to observe changes in GISel passes

https://reviews.llvm.org/D54980

This provides a standard API across GISel passes to observe and notify
passes about changes (insertions/deletions/mutations) to MachineInstrs.
This patch also removes the recordInsertion method in MachineIRBuilder
and instead provides method to setObserver.

Reviewed by: vkeles.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348406 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[CodeExtractor] Do not marked outlined calls which may resume EH as noreturn
Vedant Kumar [Wed, 5 Dec 2018 19:35:37 +0000 (19:35 +0000)]
[CodeExtractor] Do not marked outlined calls which may resume EH as noreturn

Treat terminators which resume exception propagation as returning instructions
(at least, for the purposes of marking outlined functions `noreturn`). This is
to avoid inserting traps after calls to outlined functions which unwind.

rdar://46129950

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348404 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[X86][SSE] Fix a copy+paste typo that was folding the sext/zext of partial vectors
Simon Pilgrim [Wed, 5 Dec 2018 19:32:19 +0000 (19:32 +0000)]
[X86][SSE] Fix a copy+paste typo that was folding the sext/zext of partial vectors

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348403 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[AArch64] Reword description of feature (NFC)
Evandro Menezes [Wed, 5 Dec 2018 18:42:57 +0000 (18:42 +0000)]
[AArch64] Reword description of feature (NFC)

Reword the description of the feature that enables custom handling of cheap
instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348398 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[llvm-mca] Simplify test (NFC)
Evandro Menezes [Wed, 5 Dec 2018 18:34:51 +0000 (18:34 +0000)]
[llvm-mca] Simplify test (NFC)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348395 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[llvm-mca] Sort test run lines (NFC)
Evandro Menezes [Wed, 5 Dec 2018 18:30:06 +0000 (18:30 +0000)]
[llvm-mca] Sort test run lines (NFC)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348393 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[MachineOutliner][NFC] Use getOccurrenceCount() in getNotOutlinedCost()
Jessica Paquette [Wed, 5 Dec 2018 18:17:40 +0000 (18:17 +0000)]
[MachineOutliner][NFC] Use getOccurrenceCount() in getNotOutlinedCost()

Some more gardening.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348392 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[MachineOutliner][NFC] Make getters in MachineOutliner.h const
Jessica Paquette [Wed, 5 Dec 2018 18:12:52 +0000 (18:12 +0000)]
[MachineOutliner][NFC] Make getters in MachineOutliner.h const

Just some refactoring. A few of the getters in OutlinedFunction weren't const.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348391 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[MachineOutliner][NFC] Don't create outlined sequence from integer mapping
Jessica Paquette [Wed, 5 Dec 2018 17:57:33 +0000 (17:57 +0000)]
[MachineOutliner][NFC] Don't create outlined sequence from integer mapping

Some gardening/refactoring.

It's cleaner to copy the instructions into the MachineFunction using the first
candidate instead of going to the mapper.

Also, by doing this we can remove the Seq member from OutlinedFunction entirely.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348390 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[gold-plugin] allow function/data sections to be toggleable
Nick Desaulniers [Wed, 5 Dec 2018 17:46:24 +0000 (17:46 +0000)]
[gold-plugin] allow function/data sections to be toggleable

Summary:
r336838 allowed these to be toggleable.
r336858 reverted r336838.
r336943 made the generation of these sections conditional on LDPO_REL.

This commit brings back the toggle-ability.  You can specify:
-plugin-opt=-function-sections
-plugin-opt=-data-sections
For your linker flags to disable the changes made in r336943.

Without toggling r336943 off, arm64 linux kernels linked with gold-plugin
see significant boot time regressions, but with r336943 outright reverted
x86_64 linux kernels linked with gold-plugin fail to boot.

Reviewers: pcc, void

Reviewed By: pcc

Subscribers: javed.absar, kristof.beyls, llvm-commits, srhines

Differential Revision: https://reviews.llvm.org/D55291

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348389 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoAMDGPU: Fix using old address spaces in some tests
Matt Arsenault [Wed, 5 Dec 2018 17:34:59 +0000 (17:34 +0000)]
AMDGPU: Fix using old address spaces in some tests

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348385 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[DAGCombiner] don't try to extract a fraction of a vector binop and crash (PR39893)
Sanjay Patel [Wed, 5 Dec 2018 17:10:30 +0000 (17:10 +0000)]
[DAGCombiner] don't try to extract a fraction of a vector binop and crash (PR39893)

Because we're potentially peeking through a bitcast in this transform,
we need to use overall bitwidths rather than number of elements to
determine when it's safe to proceed.

Should fix:
https://bugs.llvm.org/show_bug.cgi?id=39893

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348383 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoAllow norecurse attribute on functions that have debug infos.
Christian Bruel [Wed, 5 Dec 2018 16:48:00 +0000 (16:48 +0000)]
Allow norecurse attribute on functions that have debug infos.

Summary: debug intrinsics might be marked norecurse to enable the caller function to be norecurse and optimized if needed. This avoids code gen optimisation differences when -g is used, as in globalOpt.cpp:processInternalGlobal checks.

Reviewers: chandlerc, jmolloy, aprantl

Reviewed By: aprantl

Subscribers: aprantl, llvm-commits

Differential Revision: https://reviews.llvm.org/D55187

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348381 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[X86] Add test case to show missed opportunity to combine a concat_vector into a...
Andrea Di Biagio [Wed, 5 Dec 2018 16:23:27 +0000 (16:23 +0000)]
[X86] Add test case to show missed opportunity to combine a concat_vector into a scalar_to_vector. NFC

This is a test for D55274.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348380 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoRevert "[IR] Add NODISCARD to attribute functions"
Brian Gesiak [Wed, 5 Dec 2018 15:56:09 +0000 (15:56 +0000)]
Revert "[IR] Add NODISCARD to attribute functions"

Revert https://reviews.llvm.org/D55217 due to warnings-turned-into-errors in
AMGPU targets. I'll fix the warnings first, then re-commit this patch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348375 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[SLH] Fix a nasty bug in SLH.
Chandler Carruth [Wed, 5 Dec 2018 15:42:11 +0000 (15:42 +0000)]
[SLH] Fix a nasty bug in SLH.

Whenever we effectively take the address of a basic block we need to
manually update that basic block to reflect that fact or later passes
such as tail duplication and tail merging can break the invariants of
the code. =/ Sadly, there doesn't appear to be any good way of
automating this or even writing a reasonable assert to catch it early.

The change seems trivially and obviously correct, but sadly the only
really good test case I have is 1000s of basic blocks. I've tried
directly writing a test case that happens to make tail duplication do
something that crashes later on, but this appears to require an
*amazingly* complex set of conditions that I've not yet reproduced.

The change is technically covered by the tests because we mark the
blocks as having their address taken, but that doesn't really count as
properly testing the functionality.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348374 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[SLH] Regenerate tests with --no_x86_scrub_rip to restore the higher
Chandler Carruth [Wed, 5 Dec 2018 15:41:13 +0000 (15:41 +0000)]
[SLH] Regenerate tests with --no_x86_scrub_rip to restore the higher
fidelity checking of RIP-based references to basic blocks and other
labels.

These labels are super important for SLH tests so we should keep them
readable in the test cases.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348373 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[IR] Add NODISCARD to attribute functions
Brian Gesiak [Wed, 5 Dec 2018 15:33:55 +0000 (15:33 +0000)]
[IR] Add NODISCARD to attribute functions

Summary:
Many functions on `llvm::AttributeList` and `llvm::AttributeSet` are
documented with "returns a new {list,set} because attribute
{lists,sets} are immutable." This documentation can be aided by the
addition of an attribute, `LLVM_NODISCARD`. Adding this prevents
unsuspecting users of the API from expecting
`AttributeList::setAttributes` from modifying the underlying list.

At the very least, it would have saved me a few hours of debugging, since I
had been doing just that! I had a bug in my program where I was calling
`setAttributes` but then passing in the unmutated `AttributeList`.
I tried adding LLVM_NODISCARD and confirmed that it would have made my bug
immediately obvious.

Reviewers: rnk, javed.absar

Reviewed By: rnk

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D55217

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348372 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[AMDGPU]: Turn on the DPP combiner by default
Valery Pykhtin [Wed, 5 Dec 2018 15:21:17 +0000 (15:21 +0000)]
[AMDGPU]: Turn on the DPP combiner by default

Differential revision: https://reviews.llvm.org/D55314

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348371 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[InstCombine] simplify icmps with same operands based on dominating cmp
Sanjay Patel [Wed, 5 Dec 2018 15:04:00 +0000 (15:04 +0000)]
[InstCombine] simplify icmps with same operands based on dominating cmp

The tests here are based on the motivating cases from D54827.

More background:
1. We don't get these cases in general with SimplifyCFG because the root
   of the pattern match is an icmp, not a branch. I'm not sure how often
   we encounter this pattern vs. the seemingly more likely case with
   branches, but I don't see evidence to leave the minimal pattern
   unoptimized.

2. This has a chance of increasing compile-time because we're using a
   ValueTracking call to handle the match. The motivating cases could be
   handled with a simpler pair of calls to isImpliedTrueByMatchingCmp/
   isImpliedFalseByMatchingCmp, but I saw that we have a more
   comprehensive wrapper around those, so we might as well use it here
   unless there's evidence that it's significantly slower.

3. Ideally, we'd handle the fold to constants in InstSimplify, but as
   with the existing code here, we could extend this to handle cases
   where the result is not a constant, but a new combined predicate.
   That would mean splitting the logic across the 2 passes and possibly
   duplicating the pattern-matching cost.

4. As mentioned in D54827, this seems like the kind of thing that should
   be handled in Correlated Value Propagation, but that pass is currently
   limited to dealing with instructions with constant operands, so extending
   this bit of InstCombine is the smallest/easiest way to get these patterns
   optimized.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348367 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[X86][SSE] Begun adding modulo rotate support to LowerRotate
Simon Pilgrim [Wed, 5 Dec 2018 14:46:37 +0000 (14:46 +0000)]
[X86][SSE] Begun adding modulo rotate support to LowerRotate

Prep work for PR38243 - mainly adding comments on where we need to add modulo support (doing so at the moment causes massive codegen regressions).

I've also consistently added support for modulo folding for uniform constants (although at the moment we have no way to trigger this) and removed the old assertions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348366 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[llvm-rc] Support not expressions.
Martin Storsjo [Wed, 5 Dec 2018 13:22:56 +0000 (13:22 +0000)]
[llvm-rc] Support not expressions.

Patch by Jacek Caban!

Differential Revision: https://reviews.llvm.org/D55242

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348363 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[TargetLowering] Remove ISD::ANY_EXTEND/ANY_EXTEND_VECTOR_INREG opcodes from Simplify...
Simon Pilgrim [Wed, 5 Dec 2018 12:20:05 +0000 (12:20 +0000)]
[TargetLowering] Remove ISD::ANY_EXTEND/ANY_EXTEND_VECTOR_INREG opcodes from SimplifyDemandedVectorElts

These have no test coverage and the KnownZero flags can't be guaranteed unlike SIGN/ZERO_EXTEND cases.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348361 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[DAG] Add fshl/fshr tblgen opcodes
Simon Pilgrim [Wed, 5 Dec 2018 11:55:33 +0000 (11:55 +0000)]
[DAG] Add fshl/fshr tblgen opcodes

Missed off from https://reviews.llvm.org/D54698

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348358 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[test] Skip ThinLTO cache tests requiring atime setting on NetBSD
Michal Gorny [Wed, 5 Dec 2018 11:15:50 +0000 (11:15 +0000)]
[test] Skip ThinLTO cache tests requiring atime setting on NetBSD

Skip the ThinLTO cache tests on NetBSD.  They require 'touch' being
able to alter atime of files, while NetBSD inhibits atime updates
when filesystem is mounted noatime.

Differential Revision: https://reviews.llvm.org/D55273

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348355 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[test] Split strip-preserve-time.test, and skip atime test on NetBSD
Michal Gorny [Wed, 5 Dec 2018 11:15:46 +0000 (11:15 +0000)]
[test] Split strip-preserve-time.test, and skip atime test on NetBSD

Split timestamp preservation tests into atime and mtime test, and skip
the former on NetBSD.  When the filesystem is mounted noatime, NetBSD
not only inhibits implicit atime updates but also prevents setting atime
via utime(), causing the test to fail.

Differential Revision: https://reviews.llvm.org/D55271

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348354 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[SelectionDAG] Initial support for FSHL/FSHR funnel shift opcodes (PR39467)
Simon Pilgrim [Wed, 5 Dec 2018 11:12:12 +0000 (11:12 +0000)]
[SelectionDAG] Initial support for FSHL/FSHR funnel shift opcodes (PR39467)

This is an initial patch to add a minimum level of support for funnel shifts to the SelectionDAG and to begin wiring it up to the X86 SHLD/SHRD instructions.

Some partial legalization code has been added to handle the case for 'SlowSHLD' where we want to expand instead and I've added a few DAG combines so we don't get regressions from the existing DAG builder expansion code.

Differential Revision: https://reviews.llvm.org/D54698

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348353 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[MC] - Fix build bot.
George Rimar [Wed, 5 Dec 2018 11:06:29 +0000 (11:06 +0000)]
[MC] - Fix build bot.

Error was:
/home/buildslave/slave_as-bldslv8/lld-perf-testsuite/llvm/lib/MC/MCFragment.cpp:241:22: error: field 'Offset' will be initialized after field 'LayoutOrder' [-Werror,-Wreorder]
      Atom(nullptr), Offset(~UINT64_C(0)), LayoutOrder(0) {

http://lab.llvm.org:8011/builders/lld-perf-testsuite/builds/9628/steps/build-bin%2Flld/logs/stdio

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348351 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoRemove superfluous comments. NFCI.
Simon Pilgrim [Wed, 5 Dec 2018 10:45:44 +0000 (10:45 +0000)]
Remove superfluous comments. NFCI.

As requested in D54698.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348350 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoRecommit r348243 - "[llvm-mc] - Do not crash when referencing undefined debug sections."
George Rimar [Wed, 5 Dec 2018 10:43:58 +0000 (10:43 +0000)]
Recommit r348243 - "[llvm-mc] - Do not crash when referencing undefined debug sections."

The patch triggered an unrelated msan issue: LayoutOrder variable was not initialized.
(http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-fast/builds/26794/steps/check-llvm%20msan/logs/stdio)
It was fixed.

Original commit message:
MC has code that pre-creates few debug sections:
https://github.com/llvm-mirror/llvm/blob/master/lib/MC/MCObjectFileInfo.cpp#L396

If users code has a reference to such section but does not redefine it,
MC code currently asserts, because still thinks they are normally defined.

The patch fixes the issue.

Differential revision: https://reviews.llvm.org/D55173
----
Modified : /llvm/trunk/lib/MC/ELFObjectWriter.cpp
Added : /llvm/trunk/test/MC/ELF/undefined-debug.s

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348349 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[TargetLowering] SimplifyDemandedVectorElts - don't alter DemandedElts mask
Simon Pilgrim [Wed, 5 Dec 2018 10:37:45 +0000 (10:37 +0000)]
[TargetLowering] SimplifyDemandedVectorElts - don't alter DemandedElts mask

Fix potential issue with the ISD::INSERT_VECTOR_ELT case tweaking the DemandedElts mask instead of using a local copy - so later uses of the mask use the tweaked version.....

Noticed while investigating adding zero/undef folding to SimplifyDemandedVectorElts and the altered DemandedElts mask was causing mismatches.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348348 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[ARM GlobalISel] Implement call lowering for Thumb2
Diana Picus [Wed, 5 Dec 2018 10:35:28 +0000 (10:35 +0000)]
[ARM GlobalISel] Implement call lowering for Thumb2

The only things that are different from arm are:
* different opcodes for calls and returns
* Thumb calls take predicate operands

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348347 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[LICM] *Actually* disable ControlFlowHoisting.
Alina Sbirlea [Wed, 5 Dec 2018 10:16:21 +0000 (10:16 +0000)]
[LICM] *Actually* disable ControlFlowHoisting.

Summary:
The remaining code paths that ControlFlowHoisting introduced that were
not disabled, increased compile time by 3x for some benchmarks.
The time is spent in DominatorTree updates.

Reviewers: john.brawn, mkazantsev

Subscribers: sanjoy, jlebar, llvm-commits

Differential Revision: https://reviews.llvm.org/D55313

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348345 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoHowToBuildWithPGO.rst: Fix a few details in the manual steps
Hans Wennborg [Wed, 5 Dec 2018 08:35:30 +0000 (08:35 +0000)]
HowToBuildWithPGO.rst: Fix a few details in the manual steps

Differential revision: https://reviews.llvm.org/D55268

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348342 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[X86] Remove -costmodel-reduxcost=true from the experimental vector reduction intrins...
Craig Topper [Wed, 5 Dec 2018 07:56:50 +0000 (07:56 +0000)]
[X86] Remove -costmodel-reduxcost=true from the experimental vector reduction intrinsic tests as it appears to be unnecessary. NFC

I think this has something to do with matching reductions from extractelement, binops, and shuffles. But we're not matching here.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348340 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[X86] Add more cost model tests for vector reductions with narrow vector types. NFC
Craig Topper [Wed, 5 Dec 2018 07:26:57 +0000 (07:26 +0000)]
[X86] Add more cost model tests for vector reductions with narrow vector types. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348339 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoAArch64: support funclets in fastcall and swift_call
Saleem Abdulrasool [Wed, 5 Dec 2018 07:09:20 +0000 (07:09 +0000)]
AArch64: support funclets in fastcall and swift_call

Functions annotated with `__fastcall` or `__attribute__((__fastcall__))`
or `__attribute__((__swiftcall__))` may contain SEH handlers even on
Win64.  This matches the behaviour of cl which allows for
`__try`/`__except` inside a `__fastcall` function.  This was detected
while trying to self-host clang on Windows ARM64.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348337 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[X86] Add narrow vector test cases to vector-reduce* tests. Add copies of the tests...
Craig Topper [Wed, 5 Dec 2018 06:29:44 +0000 (06:29 +0000)]
[X86] Add narrow vector test cases to vector-reduce* tests. Add copies of the tests with -x86-experimental-vector-widening-legalization

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348334 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[NFC] Verify memoryssa in test for PR39783
Max Kazantsev [Wed, 5 Dec 2018 05:20:08 +0000 (05:20 +0000)]
[NFC] Verify memoryssa in test for PR39783

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348333 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[MachineLICM][X86][AMDGPU] Fix subtle bug in the updating of PhysRegClobbers in post...
Craig Topper [Wed, 5 Dec 2018 03:41:26 +0000 (03:41 +0000)]
[MachineLICM][X86][AMDGPU] Fix subtle bug in the updating of PhysRegClobbers in post-RA LICM

It looks like MCRegAliasIterator can visit the same physical register twice. When this happens in this code in LICM we end up setting the PhysRegDef and then later in the same loop visit the register again. Now we see that PhysRegDef is set from the earlier iteration so now set PhysRegClobber.

This patch splits the loop so we have one that uses the previous value of PhysRegDef to update PhysRegClobber and second loop that updates PhysRegDef.

The X86 atomic test is an improvement. I had to add sideeffect to the two shrink wrapping tests to prevent hoisting from occurring. I'm not sure about the AMDGPU tests. It looks like the branch instruction changed at end the of the loops. And in the branch-relaxation test I think there is now "and vcc, exec, -1" instruction that wasn't there before.

Differential Revision: https://reviews.llvm.org/D55102

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348330 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[asan] Add clang flag -fsanitize-address-use-odr-indicator
Vitaly Buka [Wed, 5 Dec 2018 01:44:31 +0000 (01:44 +0000)]
[asan] Add clang flag -fsanitize-address-use-odr-indicator

Reviewers: eugenis, m.ostapenko, ygribov

Subscribers: hiraditya, llvm-commits

Differential Revision: https://reviews.llvm.org/D55157

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348327 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[TableGen] Preserve order of output operands in DAGISelMatcherGen
Craig Topper [Wed, 5 Dec 2018 00:47:59 +0000 (00:47 +0000)]
[TableGen] Preserve order of output operands in DAGISelMatcherGen

Summary:
This fixes support in DAGISelMatcher backend for DAG nodes with multiple
result values. Previously the order of results in selected DAG nodes always
matched the order of results in ISel patterns. After the change the order of
results matches the order of operands in OutOperandList instead.

For example, given this definition from the attached test case:

  def INSTR : Instruction {
    let OutOperandList = (outs GPR:$r1, GPR:$r0);
    let InOperandList = (ins GPR:$t0, GPR:$t1);
    let Pattern = [(set i32:$r0, i32:$r1, (udivrem i32:$t0, i32:$t1))];
  }

the DAGISelMatcher backend currently produces a matcher that creates INSTR
nodes with the first result `$r0` and the second result `$r1`, contrary to the
order in the OutOperandList. The order of operands in OutOperandList does not
matter at all, which is unexpected (and unfortunate) because the order of
results of a DAG node does matters, perhaps a lot.

With this change, if the order in OutOperandList does not match the order in
Pattern, DAGISelMatcherGen emits CompleteMatch opcodes with the order of
results taken from OutOperandList. Backend writers can use it to express
result reorderings in TableGen.

If the order in OutOperandList matches the order in Pattern, the result of
DAGISelMatcherGen is unaffected.

Patch by Eugene Sharygin

Reviewers: andreadb, bjope, hfinkel, RKSimon, craig.topper

Reviewed By: craig.topper

Subscribers: nhaehnle, craig.topper, llvm-commits

Differential Revision: https://reviews.llvm.org/D55055

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348326 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[SelectionDAG] Split very large token factors for loads into 64k chunks.
Amara Emerson [Wed, 5 Dec 2018 00:41:30 +0000 (00:41 +0000)]
[SelectionDAG] Split very large token factors for loads into 64k chunks.

There's a 64k limit on the number of SDNode operands, and some very large
functions with 64k or more loads can cause crashes due to this limit being hit
when a TokenFactor with this many operands is created. To fix this, create
sub-tokenfactors if we've exceeded the limit.

No test case as it requires a very large function.

rdar://45196621

Differential Revision: https://reviews.llvm.org/D55073

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348324 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[ADT] Add zip_longest iterators.
Michael Kruse [Wed, 5 Dec 2018 00:31:54 +0000 (00:31 +0000)]
[ADT] Add zip_longest iterators.

Like the already existing zip_shortest/zip_first iterators, zip_longest
iterates over multiple iterators at once, but has as many iterations as
the longest sequence.

This means some iterators may reach the end before others do.
zip_longest uses llvm::Optional's None value to mark a
past-the-end value.

zip_longest is not reverse-iteratable because the tuples iterated over
would be different for different length sequences (IMHO for the same
reason neither zip_shortest nor zip_first should be reverse-iteratable;
one can still reverse the ranges individually if that's the expected
behavior).

In contrast to zip_shortest/zip_first, zip_longest tuples contain
rvalues instead of references. This is because llvm::Optional cannot
contain reference types and the value-initialized default does not have
a memory location a reference could point to.

The motivation for these iterators is to use C++ foreach to compare two
lists of ordered attributes in D48100 (SemaOverload.cpp and
ASTReaderDecl.cpp).

Idea by @hfinkel.

This re-commits r348301 which was reverted by r348303.
The compilation error by gcc 5.4 was resolved using make_tuple in the in
the initializer_list.
The compileration error by msvc14 was resolved by splitting
ZipLongestValueType (which already was a workaround for msvc15) into
ZipLongestItemType and ZipLongestTupleType.

Differential Revision: https://reviews.llvm.org/D48348

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348323 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoLTO: Don't internalize available_externally globals.
Peter Collingbourne [Wed, 5 Dec 2018 00:09:36 +0000 (00:09 +0000)]
LTO: Don't internalize available_externally globals.

This breaks C and C++ semantics because it can cause the address
of the global inside the module to differ from the address outside
of the module.

Differential Revision: https://reviews.llvm.org/D55237

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348321 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[AArch64][GlobalISel] Re-enable selection of volatile loads.
Amara Emerson [Wed, 5 Dec 2018 00:03:09 +0000 (00:03 +0000)]
[AArch64][GlobalISel] Re-enable selection of volatile loads.

We previously disabled this in r323371 because of a bug where we selected an
extending load, but didn't delete the old G_LOAD, resulting in two loads being
generated for volatile loads.

Since we now have dedicated G_SEXTLOAD/G_ZEXTLOAD operations, and that the
tablegen patterns should no longer be able to select (ext(load x)) patterns, it
should be safe to re-enable it.

The old test case should still work as expected.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348320 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoRemove the hash code from CVRecord.
Zachary Turner [Tue, 4 Dec 2018 23:56:07 +0000 (23:56 +0000)]
Remove the hash code from CVRecord.

This is no longer used and is just taking up space in the structure.
Heap allocation of this structure is on the critical path, so space
actually matters.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348318 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[asan] Split -asan-use-private-alias to -asan-use-odr-indicator
Vitaly Buka [Tue, 4 Dec 2018 23:17:41 +0000 (23:17 +0000)]
[asan] Split -asan-use-private-alias to -asan-use-odr-indicator

Reviewers: eugenis, m.ostapenko, ygribov

Subscribers: mehdi_amini, kubamracek, hiraditya, steven_wu, dexonsmith, llvm-commits

Differential Revision: https://reviews.llvm.org/D55156

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348316 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[InstCombine] add tests for implied simplifications; NFC
Sanjay Patel [Tue, 4 Dec 2018 22:25:33 +0000 (22:25 +0000)]
[InstCombine] add tests for implied simplifications; NFC

Ideally, we would fold all of these in InstSimplify in a
similar way to rL347896, but this is a bit awkward when
we're trying to simplify a compare directly because the
ValueTracking API expects the compare as an input, but
in InstSimplify, we just have the operands of the compare.

Given that we can do transforms besides just simplifications,
we might as well just extend the code in InstCombine (which
already does simplifications with constant operands).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348312 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoAArch64: clean up some whitespace in Windows CC (NFC)
Saleem Abdulrasool [Tue, 4 Dec 2018 22:19:29 +0000 (22:19 +0000)]
AArch64: clean up some whitespace in Windows CC (NFC)

Drive by clean up for Windows ARM64 variadic CC (NFC).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348310 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[llvm-pdbutil] Remove the analyze subcommand.
Zachary Turner [Tue, 4 Dec 2018 21:49:04 +0000 (21:49 +0000)]
[llvm-pdbutil] Remove the analyze subcommand.

Nobody has used this since it was introduced, and it doesn't have
test coverage.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348307 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[PDB] Emit S_UDT records in LLD.
Zachary Turner [Tue, 4 Dec 2018 21:48:46 +0000 (21:48 +0000)]
[PDB] Emit S_UDT records in LLD.

Previously these were dropped.  We now understand them sufficiently
well to start emitting them.  From the debugger's perspective, this
now enables us to have debug info about typedefs (both global and
function-locally scoped)

Differential Revision: https://reviews.llvm.org/D55228

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348306 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[AVR] Silence fallthrough warning. NFC.
Nirav Dave [Tue, 4 Dec 2018 21:41:52 +0000 (21:41 +0000)]
[AVR] Silence fallthrough warning. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348304 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoRevert "[ADT] Add zip_longest iterators"
Michael Kruse [Tue, 4 Dec 2018 21:38:55 +0000 (21:38 +0000)]
Revert "[ADT] Add zip_longest iterators"

This reverts commit r348301.

Compilation fails on buildbots with older versions of gcc and msvc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348303 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[ADT] Add zip_longest iterators
Michael Kruse [Tue, 4 Dec 2018 21:06:16 +0000 (21:06 +0000)]
[ADT] Add zip_longest iterators

Like the already existing zip_shortest/zip_first iterators, zip_longest
iterates over multiple iterators at once, but has as many iterations as
the longest sequence.

This means some iterators may reach the end before others do.
zip_longest uses llvm::Optional's None value to mark a
past-the-end value.

zip_longest is not reverse-iteratable because the tuples iterated over
would be different for different length sequences (IMHO for the same
reason neither zip_shortest nor zip_first should be reverse-iteratable;
one can still reverse the ranges individually if that's the expected
behavior).

In contrast to zip_shortest/zip_first, zip_longest tuples contain
rvalues instead of references. This is because llvm::Optional cannot
contain reference types and the value-initialized default does not have
a memory location a reference could point to.

The motivation for these iterators is to use C++ foreach to compare two
lists of ordered attributes in D48100 (SemaOverload.cpp and
ASTReaderDecl.cpp).

Idea by @hfinkel.

Differential Revision: https://reviews.llvm.org/D48348

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348301 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[PowerPC] Make no-PIC default to match GCC - LLVM
Stefan Pintilie [Tue, 4 Dec 2018 20:14:57 +0000 (20:14 +0000)]
[PowerPC] Make no-PIC default to match GCC - LLVM

Change the default for PowerPC LE to -fno-PIC.

Differential Revision: https://reviews.llvm.org/D53383

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348298 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[CmpInstAnalysis] fix function signature for ICmp code to predicate; NFC
Sanjay Patel [Tue, 4 Dec 2018 18:53:27 +0000 (18:53 +0000)]
[CmpInstAnalysis] fix function signature for ICmp code to predicate; NFC

The old function underspecified the return type, took an unused parameter,
and had a misleading name.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348292 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoMove llc-start-stop-instance to x86
Matt Arsenault [Tue, 4 Dec 2018 18:19:08 +0000 (18:19 +0000)]
Move llc-start-stop-instance to x86

Avoid bot failures where the host pass
setup might not have 2 dead-mi-elimination runs

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348290 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[SelectionDAG] Redefine isGAPlusOffset in terms of unwrapAddress. NFCI.
Nirav Dave [Tue, 4 Dec 2018 17:59:43 +0000 (17:59 +0000)]
[SelectionDAG] Redefine isGAPlusOffset in terms of unwrapAddress. NFCI.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348288 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoAMDGPU: Add f32 vectors to SGPR register classes
Matt Arsenault [Tue, 4 Dec 2018 17:51:36 +0000 (17:51 +0000)]
AMDGPU: Add f32 vectors to SGPR register classes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348286 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoMIR: Add method to stop after specific runs of passes
Matt Arsenault [Tue, 4 Dec 2018 17:45:12 +0000 (17:45 +0000)]
MIR: Add method to stop after specific runs of passes

Currently if you use -{start,stop}-{before,after}, it picks
the first instance with the matching pass name. If you run
the same pass multiple times, there's no way to distinguish them.

Allow specifying a run index wih ,N to specify which you mean.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348285 91177308-0d34-0410-b5e6-96231b3b80d8