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Matthias Braun [Wed, 24 Aug 2016 01:32:41 +0000 (01:32 +0000)]
MIRParser/MIRPrinter: Compute isSSA instead of printing/parsing it.
Specifying isSSA is an extra line at best and results in invalid MI at
worst. Compute the value instead.
Differential Revision: http://reviews.llvm.org/D22722
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279600
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Richard Smith [Wed, 24 Aug 2016 00:54:49 +0000 (00:54 +0000)]
Increase the size of the sigaltstack used by LLVM signal handlers. 8KB is not
sufficient in some cases; increase to 64KB, which should be enough for anyone :)
Patch by github.com/bryant!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279599
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Matthias Braun [Wed, 24 Aug 2016 00:42:05 +0000 (00:42 +0000)]
MachineModuleInfo: Avoid dummy constructor, use INITIALIZE_TM_PASS
Change this pass constructor to just accept a const TargetMachine * and
use INITIALIZE_TM_PASS, that way we can get rid of the dummy
constructor. The pass will still fail when calling the default
constructor leading to TM == nullptr, this is no different than before
but is more in line what other codegen passes are doing and avoids the
dummy constructor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279598
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David Callahan [Wed, 24 Aug 2016 00:10:06 +0000 (00:10 +0000)]
[ADCE] Add control dependence computation
Summary:
This is part of a serious of patches to evolve ADCE.cpp to support
removing of unnecessary control flow.
This patch adds the ability to compute control dependences using
the iterated dominance frontier. We extend the liveness propagation
to alternate between data and control dependences until convergences.
Modify the pass manager intergation to compute the post-dominator tree
needed for iterator dominance frontier.
We still force all terminators live for now until we add code to
handlinge removing control flow in a later patch.
No changes to effective behavior with this patch
Previous patches:
D23225 [ADCE] Modify data structures to support removing control flow
D23065 [ADCE] Refactor anticipating new functionality (NFC)
D23102 [ADCE] Refactoring for new functionality (NFC)
Reviewers: nadav, majnemer, mehdi_amini
Subscribers: twoh, freik, llvm-commits
Differential Revision: https://reviews.llvm.org/D23559
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279594
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Philip Reames [Tue, 23 Aug 2016 23:58:08 +0000 (23:58 +0000)]
[stackmaps] Remove an unneeded member variable [NFC]
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279590
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Kostya Serebryany [Tue, 23 Aug 2016 23:43:08 +0000 (23:43 +0000)]
[libFuzzer] fix link in docs
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279589
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Kostya Serebryany [Tue, 23 Aug 2016 23:37:37 +0000 (23:37 +0000)]
[libFuzzer] collect 64 states for value profile, not 65
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279588
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Kostya Serebryany [Tue, 23 Aug 2016 23:36:21 +0000 (23:36 +0000)]
[libFuzzer] docs on value profile
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279587
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Philip Reames [Tue, 23 Aug 2016 23:33:29 +0000 (23:33 +0000)]
[stackmaps] More extraction of common code [NFCI]
General cleanup before starting to work on the part I want to actually change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279586
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Michael Zolotukhin [Tue, 23 Aug 2016 23:13:15 +0000 (23:13 +0000)]
[LoopUnroll] By default disable unrolling when optimizing for size.
Summary:
In clang commit r268509 we started to invoke loop-unroll pass from the
driver even under -Os. However, we happen to not initialize optsize
thresholds properly, which si fixed with this change.
r268509 led to some big compile time regressions, because we started to
unroll some loops that we didn't unroll before. With this change I hope
to recover most of the regressions. We still are slightly slower than
before, because we do some checks here and there in loop-unrolling
before we bail out, but at least the slowdown is not that huge now.
Reviewers: hfinkel, chandlerc
Subscribers: mzolotukhin, llvm-commits
Differential Revision: https://reviews.llvm.org/D23388
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279585
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Richard Smith [Tue, 23 Aug 2016 22:21:58 +0000 (22:21 +0000)]
Don't use "return {...}" to initialize a std::tuple. This has only been valid
since 2015 (n4387), though it's allowed by a library DR so new implementations
accept it in their C++11 modes...
This should unbreak the build with libstdc++ 4.9.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279583
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Richard Smith [Tue, 23 Aug 2016 22:14:15 +0000 (22:14 +0000)]
#ifdef out validation code when asserts are disabled to remove unused variable
warnings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279582
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Richard Smith [Tue, 23 Aug 2016 22:10:46 +0000 (22:10 +0000)]
Remove unused data member to unbreak -Werror builds.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279581
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Richard Smith [Tue, 23 Aug 2016 22:08:27 +0000 (22:08 +0000)]
Revert r279564. It introduces undefined behavior (binding a reference to a
dereferenced null pointer) in MachineModuleInfo::MachineModuleInfo that causes
-Werror builds (including several buildbots) to fail.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279580
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Tim Northover [Tue, 23 Aug 2016 22:07:31 +0000 (22:07 +0000)]
GlobalISel: add some G_TRUNCs to make icmp test valid MIR.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279579
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Sanjay Patel [Tue, 23 Aug 2016 22:05:55 +0000 (22:05 +0000)]
[InstCombine] use local variables for repeated values; NFCI
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279578
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Petr Hosek [Tue, 23 Aug 2016 21:34:53 +0000 (21:34 +0000)]
[MC] Support .dc directives in assembler parser
While these directives are mostly aliases for the existing integer
and float value directives, some of them like .dc.a have no direct
equivalents and are sometimes being used for convenience.
Differential Revision: https://reviews.llvm.org/D23810
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279577
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Mehdi Amini [Tue, 23 Aug 2016 21:30:12 +0000 (21:30 +0000)]
[ThinLTO] Add caching to the new LTO API
Add the ability to plug a cache on the LTO API.
I tried to write such that a linker implementation can
control the cache backend. This is intrusive and I'm
not totally happy with it, but I can't figure out a
better design right now.
Differential Revision: https://reviews.llvm.org/D23599
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279576
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Sanjay Patel [Tue, 23 Aug 2016 21:25:13 +0000 (21:25 +0000)]
[InstCombine] move foldICmpShrConstConst() contents to foldICmpShrConst(); NFCI
There will only be 3 lines of code in foldICmpShrConst() when the cleanup is done,
so it doesn't make much sense to have a separate function for a single fold.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279575
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Philip Reames [Tue, 23 Aug 2016 21:21:43 +0000 (21:21 +0000)]
[stackmaps] Extract out magic constants [NFCI]
This is a first step towards clarifying the exact MI semantics of stackmap's "live values".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279574
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Matthias Braun [Tue, 23 Aug 2016 21:19:49 +0000 (21:19 +0000)]
MachineFunction: Introduce NoPHIs property
I want to compute the SSA property of .mir files automatically in
upcoming patches. The problem with this is that some inputs will be
reported as static single assignment with some passes claiming not to
support SSA form. In reality though those passes do not support PHI
instructions => Track the presence of PHI instructions separate from the
SSA property.
Differential Revision: https://reviews.llvm.org/D22719
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279573
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Tim Northover [Tue, 23 Aug 2016 21:11:36 +0000 (21:11 +0000)]
GlobalISel: add forgotten test-case for G_ICMP
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279569
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Sanjay Patel [Tue, 23 Aug 2016 21:01:35 +0000 (21:01 +0000)]
[InstCombine] remove icmp shr folds that are already handled by InstSimplify
AFAICT, these already worked in all cases for scalar types, and I enhanced
the code to work for vector types in:
https://reviews.llvm.org/rL279543
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279568
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Tim Northover [Tue, 23 Aug 2016 21:01:33 +0000 (21:01 +0000)]
GlobalISel: make truncate/extend casts uniform
They really should have both types represented, but early variants were created
before MachineInstrs could have multiple types so they're rather ambiguous.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279567
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Tim Northover [Tue, 23 Aug 2016 21:01:26 +0000 (21:01 +0000)]
GlobalISel: legalize integer comparisons on AArch64.
Next step is doing both legalizations at the same time! Marvel at GlobalISel's
cunning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279566
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Tim Northover [Tue, 23 Aug 2016 21:01:20 +0000 (21:01 +0000)]
GlobalISel: legalize conditional branches on AArch64.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279565
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Matthias Braun [Tue, 23 Aug 2016 20:58:29 +0000 (20:58 +0000)]
CodeGen: Remove MachineFunctionAnalysis => Enable (Machine)ModulePasses
Re-apply this commit with the deletion of a MachineFunction delegated to
a separate pass to avoid use after free when doing this directly in
AsmPrinter.
This patch removes the MachineFunctionAnalysis. Instead we keep a
map from IR Function to MachineFunction in the MachineModuleInfo.
This allows the insertion of ModulePasses into the codegen pipeline
without breaking it because the MachineFunctionAnalysis gets dropped
before a module pass.
Peak memory should stay unchanged without a ModulePass in the codegen
pipeline: Previously the MachineFunction was freed at the end of a codegen
function pipeline because the MachineFunctionAnalysis was dropped; With
this patch the MachineFunction is freed after the AsmPrinter has
finished.
Differential Revision: http://reviews.llvm.org/D23736
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279564
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David Majnemer [Tue, 23 Aug 2016 20:52:00 +0000 (20:52 +0000)]
[ValueTracking] Use a function_ref to avoid multiple instantiations
No functional change intended, this should just be a code size
improvement.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279563
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Matthew Simpson [Tue, 23 Aug 2016 20:48:50 +0000 (20:48 +0000)]
[SLP] Avoid signed integer overflow
The test case included with r279125 exposed an existing signed integer
overflow. Since getTreeCost can return INT_MAX, we can't sum this cost together
with other costs, such as getReductionCost.
This patch removes the possibility of assigning a cost of INT_MAX. Since we
were previously using INT_MAX as an indicator for "should not vectorize", we
now explicitly check this condition with "isTreeTinyAndNotFullyVectorizable"
before computing a cost.
This patch adds a run-line to the test case used for r279125 that ensures we
don't vectorize. Previously, this line would vectorize the test case by chance
due to undefined behavior in the cost calculation.
Differential Revision: https://reviews.llvm.org/D23723
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279562
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Zachary Turner [Tue, 23 Aug 2016 20:08:02 +0000 (20:08 +0000)]
Remove unused translation unit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279561
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Zachary Turner [Tue, 23 Aug 2016 20:07:32 +0000 (20:07 +0000)]
Update coding standards for include style.
Reviewed By: lattner
Differential Revision: https://reviews.llvm.org/D23591
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279560
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Mehdi Amini [Tue, 23 Aug 2016 19:32:41 +0000 (19:32 +0000)]
[LTO] Fix test following r279550
The output name changed, but it was passing locally
using the old output still present in the build dir.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279556
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Tim Northover [Tue, 23 Aug 2016 19:30:42 +0000 (19:30 +0000)]
GlobalISel: extend legalizer interface to handle multiple types.
Instructions like G_ICMP have multiple types that may need to be legalized (the
boolean output and nearly arbitrary inputs in this case). So the legalizer must
be capable of deciding what to do for each of them separately.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279554
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Tim Northover [Tue, 23 Aug 2016 19:30:38 +0000 (19:30 +0000)]
GlobalISel: mark pointer casts legal on AArch64.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279553
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Mehdi Amini [Tue, 23 Aug 2016 18:39:15 +0000 (18:39 +0000)]
[ThinLTO] Add a llvm-lto2 test to check that ODR type uniquing is enabled (NFC)
This adds a test for r279532, thanks David Li for noticing :)
Recommit r279545 after committing first a dependent patch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279551
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Mehdi Amini [Tue, 23 Aug 2016 18:39:12 +0000 (18:39 +0000)]
Stop always creating and running an LTO compilation if there is not a single LTO object
Summary:
I assume there was a use case, so maybe this strawman patch will help
clarifying if it is legit.
In any case the current situation is not legit: a ThinLTO compilation
should not trigger an unexpected full LTO compilation.
Right now, adding a --save-temps option triggers this and makes the
number of output differs.
Reviewers: tejohnson
Subscribers: pcc, llvm-commits, mehdi_amini
Differential Revision: https://reviews.llvm.org/D23600
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279550
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Mehdi Amini [Tue, 23 Aug 2016 18:25:59 +0000 (18:25 +0000)]
Revert "[ThinLTO] Add a llvm-lto2 test to check that ODR type uniquing is enabled (NFC)"
This reverts commit r279545, test is failing, my Output dir was dirty and making the test pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279549
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Tim Northover [Tue, 23 Aug 2016 18:20:09 +0000 (18:20 +0000)]
GlobalISel: legalize 1-bit load/store and mark 8/16 bit variants legal on AArch64.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279548
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Mehdi Amini [Tue, 23 Aug 2016 18:12:55 +0000 (18:12 +0000)]
[ThinLTO] Add a llvm-lto2 test to check that ODR type uniquing is enabled (NFC)
This adds a test for r279532, thanks David Li for noticing :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279545
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Peter Zotov [Tue, 23 Aug 2016 18:07:16 +0000 (18:07 +0000)]
[CMake] [OCaml] Add -DLLVM_ENABLE_OCAMLDOC switch
Patch by Michael Gorny.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279544
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Sanjay Patel [Tue, 23 Aug 2016 18:00:51 +0000 (18:00 +0000)]
[InstSimplify] allow icmp with constant folds for splat vectors, part 2
Completes the m_APInt changes for simplifyICmpWithConstant().
Other commits in this series:
https://reviews.llvm.org/rL279492
https://reviews.llvm.org/rL279530
https://reviews.llvm.org/rL279534
https://reviews.llvm.org/rL279538
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279543
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Xinliang David Li [Tue, 23 Aug 2016 18:00:41 +0000 (18:00 +0000)]
Possible fix of test failures on win bots
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279542
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Sanjay Patel [Tue, 23 Aug 2016 17:30:56 +0000 (17:30 +0000)]
[InstSimplify] allow icmp with constant folds for splat vectors, part 1
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279538
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Justin Lebar [Tue, 23 Aug 2016 17:18:11 +0000 (17:18 +0000)]
[SelectionDAG] Use a union of bitfield structs for SDNode::SubclassData.
Summary:
This greatly simplifies our handling of SDNode::SubclassData.
NFC, hopefully. :)
See discussion in D23035 for discussion about the design API of these
bitfields.
Reviewers: chandlerc
Subscribers: llvm-commits, rnk
Differential Revision: https://reviews.llvm.org/D23036
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279537
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Justin Lebar [Tue, 23 Aug 2016 17:18:07 +0000 (17:18 +0000)]
[CodeGen] Convert a loop to a for-each loop. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279536
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Eugene Zelenko [Tue, 23 Aug 2016 17:14:32 +0000 (17:14 +0000)]
Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes.
Differential revision: https://reviews.llvm.org/D23789
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279535
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Sanjay Patel [Tue, 23 Aug 2016 17:13:38 +0000 (17:13 +0000)]
[InstSimplify] add tests to show missing vector icmp folds
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279534
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Mehdi Amini [Tue, 23 Aug 2016 16:53:34 +0000 (16:53 +0000)]
[ThinLTO] Make sure the Context used for the ThinLTO backend has all the appropriate options
An important performance setting on the LLVMContext for LTO is
enableDebugTypeODRUniquing(), this adds an automatic merging of
debug information in the context based on type ids.
Also, the lto::Config includes a diagnostic handler that needs to
be set on the Context, as well as the setDiscardValueNames() setting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279532
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Sanjay Patel [Tue, 23 Aug 2016 16:46:53 +0000 (16:46 +0000)]
[InstSimplify] move icmp with constant tests to another file; NFC
...because like the corresponding code, this is just too big to keep adding to.
And the next step is to add a vector version of each of these tests to show
missed folds.
Also, auto-generate CHECK lines and add comments for the tests that correspond to
the source code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279530
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Pete Cooper [Tue, 23 Aug 2016 16:23:45 +0000 (16:23 +0000)]
Fix some more asserts after r279466.
That commit added a new version of Intrinsic::getName which should only
be called when the intrinsic has no overloaded types. There are several
debugging paths, such as SDNode::dump which are printing the name of the
intrinsic but don't have the overloaded types. These paths should be ok
to just print the name instead of crashing.
The fix here is ultimately to just add a 'None' second argument as that
calls the overload capable getName, which is less efficient, but this is a
debugging path anyway, and not perf critical.
Thanks to Björn Pettersson for pointing out that there were more crashes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279528
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Simon Pilgrim [Tue, 23 Aug 2016 16:11:21 +0000 (16:11 +0000)]
[X86][SSE] Demonstrate inability to recognise that (v)cvtpd2dq & (v)cvttpd2dq intrinsics implicitly zeroes the upper half of the xmm
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279527
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Krzysztof Parzyszek [Tue, 23 Aug 2016 16:01:01 +0000 (16:01 +0000)]
[Hexagon] Packetize return value setup with the return instruction
Commit r279241 unintentionally reverted that ability.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279526
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Xinliang David Li [Tue, 23 Aug 2016 16:00:54 +0000 (16:00 +0000)]
Fix windows build failure
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279525
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Duncan P. N. Exon Smith [Tue, 23 Aug 2016 15:56:50 +0000 (15:56 +0000)]
Rename unittests/ADT/ilistTest.cpp to ilistTestTemp.cpp (temporarily)
I'll rename this to IListTest.cpp after a waiting period (tonight?
tomorrow?), with a full explanation in that commit.
First, I'm moving it aside because Git doesn't play well with case-only
filename changes on case-insensitive file systems (and I suspect the
same is true of SVN). This two-stage change should help to avoid
spurious failures on bots that don't do clean checkouts.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279524
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Xinliang David Li [Tue, 23 Aug 2016 15:39:03 +0000 (15:39 +0000)]
[Profile] refactor meta data copying/swapping code
Differential Revision: http://reviews.llvm.org/D23619
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279523
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Adrian Prantl [Tue, 23 Aug 2016 15:38:59 +0000 (15:38 +0000)]
Work around PR29097 to get the module bots going again.
This replaces an =default constructor with an explicit definition.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279522
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Simon Pilgrim [Tue, 23 Aug 2016 15:10:39 +0000 (15:10 +0000)]
[X86][AVX] Updated fptosi_2f64_to_4i32 test to show missed opportunity to implicit zero the upper elements
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279521
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Simon Pilgrim [Tue, 23 Aug 2016 15:00:52 +0000 (15:00 +0000)]
[X86][AVX] Add v2i32 fp to int conversion tests
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279520
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Simon Pilgrim [Tue, 23 Aug 2016 14:37:35 +0000 (14:37 +0000)]
[X86][AVX] Add AVX2/AVX512 fp to int conversion tests
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279518
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Jacques Pienaar [Tue, 23 Aug 2016 14:36:53 +0000 (14:36 +0000)]
[lanai] Use const instead of constexpr
The windows build bot did not like constexpr.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279517
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Elliot Colp [Tue, 23 Aug 2016 14:03:02 +0000 (14:03 +0000)]
Fix SystemZ hang caused by r279105
The change in r279105 causes an infinite loop in some cases, as it sets the upper bits of an AND mask constant, which DAGCombiner::SimplifyDemandedBits then unsets.
This patch reverts that part of the behaviour, instead relying on .td peepholes to perform the transformation to NILL. I reapplied my original fix for the problem addressed by r279105 (unsetting the upper bits, which prevents a compiler abort for a different reason).
Differential Revision: https://reviews.llvm.org/D23781
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279515
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Davide Italiano [Tue, 23 Aug 2016 12:32:57 +0000 (12:32 +0000)]
[LTOCodeGenerator] Reduce code duplication. NFCI.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279514
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Simon Pilgrim [Tue, 23 Aug 2016 11:26:28 +0000 (11:26 +0000)]
[X86][SSE] Demonstrate inability to recognise that (v)cvtpd2ps intrinsics implicitly zeroes the upper half of the xmm
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279511
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NAKAMURA Takumi [Tue, 23 Aug 2016 10:47:40 +0000 (10:47 +0000)]
LLVMLanaDesc: Update libdesp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279510
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NAKAMURA Takumi [Tue, 23 Aug 2016 10:43:01 +0000 (10:43 +0000)]
Change the target's name, s/LanaiMCTargetDesc/LanaiDesc/g.
"AllTargetsDescs" in llvm-mc/CMakeLists.txt expects not ${target}MCTargetDesc, but ${target}Desc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279509
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Simon Pilgrim [Tue, 23 Aug 2016 10:35:24 +0000 (10:35 +0000)]
[X86][SSE] Demonstrate inability to recognise that (v)cvtpd2ps implicitly zeroes the upper half of the xmm
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279508
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Oliver Stannard [Tue, 23 Aug 2016 09:19:22 +0000 (09:19 +0000)]
[ARM] Generate consistent frame records for Thumb2
There is not an official documented ABI for frame pointers in Thumb2,
but we should try to emit something which is useful.
We use r7 as the frame pointer for Thumb code, which currently means
that if a function needs to save a high register (r8-r11), it will get
pushed to the stack between the frame pointer (r7) and link register
(r14). This means that while a stack unwinder can follow the chain of
frame pointers up the stack, it cannot know the offset to lr, so does
not know which functions correspond to the stack frames.
To fix this, we need to push the callee-saved registers in two batches,
with the first push saving the low registers, fp and lr, and the second
push saving the high registers. This is already implemented, but
previously only used for iOS. This patch turns it on for all Thumb2
targets when frame pointers are required by the ABI, and the frame
pointer is r7 (Windows uses r11, so this isn't a problem there). If
frame pointer elimination is enabled we still emit a single push/pop
even if we need a frame pointer for other reasons, to avoid increasing
code size.
We must also ensure that lr is pushed to the stack when using a frame
pointer, so that we end up with a complete frame record. Situations that
could cause this were rare, because we already push lr in most
situations so that we can return using the pop instruction.
Differential Revision: https://reviews.llvm.org/D23516
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279506
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Daniel Berlin [Tue, 23 Aug 2016 05:42:41 +0000 (05:42 +0000)]
GVNHoist: Use the pass version of MemorySSA and preserve it.
Summary: GVNHoist: Use the pass version of MemorySSA and preserve it.
Reviewers: sebpop, george.burgess.iv
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D23782
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279504
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Matthias Braun [Tue, 23 Aug 2016 05:17:11 +0000 (05:17 +0000)]
Revert "(HEAD -> master, origin/master, origin/HEAD) CodeGen: Remove MachineFunctionAnalysis => Enable (Machine)ModulePasses"
Reverting while tracking down a use after free.
This reverts commit r279502.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279503
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Matthias Braun [Tue, 23 Aug 2016 03:20:09 +0000 (03:20 +0000)]
CodeGen: Remove MachineFunctionAnalysis => Enable (Machine)ModulePasses
This patch removes the MachineFunctionAnalysis. Instead we keep a
map from IR Function to MachineFunction in the MachineModuleInfo.
This allows the insertion of ModulePasses into the codegen pipeline
without breaking it because the MachineFunctionAnalysis gets dropped
before a module pass.
Peak memory should stay unchanged without a ModulePass in the codegen
pipeline: Previously the MachineFunction was freed at the end of a codegen
function pipeline because the MachineFunctionAnalysis was dropped; With
this patch the MachineFunction is freed after the AsmPrinter has
finished.
Differential Revision: http://reviews.llvm.org/D23736
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279502
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Matt Arsenault [Tue, 23 Aug 2016 01:30:30 +0000 (01:30 +0000)]
BranchRelaxation: Fix handling of blocks with multiple conditional
branches
Looping over all terminators exposed AArch64 tests hitting
an assert from analyzeBranch failing. I believe these cases
were miscompiled before.
e.g.
fcmp s0, s1
b.ne LBB0_1
b.vc LBB0_2
b LBB0_2
LBB0_1:
; Large block
LBB0_2:
; ...
Both of the individual conditional branches need to
be expanded, since neither can reach the final block.
Split the original block into ones which analyzeBranch
will be able to understand.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279499
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Jacques Pienaar [Tue, 23 Aug 2016 01:06:44 +0000 (01:06 +0000)]
[lanai] Make Lanai backend non-experimental
Summary:
Add Lanai backend to default targets.
Discussion of proposal: http://lists.llvm.org/pipermail/llvm-dev/2016-July/102480.html. ISA added in r279149.
Reviewers: jyknight, rengolin, eliben, chandlerc
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D22530
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279498
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Jacques Pienaar [Tue, 23 Aug 2016 01:04:41 +0000 (01:04 +0000)]
[lanai] Exit early in Mem Alu combiner if sentinel reach.
LanaiMemAluCombiner could try to query the debug value of a list sentinel. Add check to exit early instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279497
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George Burgess IV [Mon, 22 Aug 2016 23:40:01 +0000 (23:40 +0000)]
[MemorySSA] Remove unused field. NFC.
Given that we're not currently using blocker info, and whether or not we
will end up using it it is unclear, don't waste 8 (or 4) bytes of memory
per path node.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279493
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Sanjay Patel [Mon, 22 Aug 2016 23:12:02 +0000 (23:12 +0000)]
[InstSimplify] add helper function for SimplifyICmpInst(); NFCI
And add a FIXME because the helper excludes folds for vectors. It's
not clear yet how many of these are actually testable (and therefore
necessary?) because later analysis uses computeKnownBits and other
methods to catch many of these cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279492
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Pete Cooper [Mon, 22 Aug 2016 22:27:05 +0000 (22:27 +0000)]
Fix crash from assert in r279466.
The assert in r279466 checks that we call the correct version of
Intrinsic::getName. The version which accepts only an ID should not
be used for intrinsics with overloaded types. The global-isel
code was calling the wrong version. The test CodeGen/AArch64/GlobalISel/arm64-irtranslator.ll
will ensure that we call the correct version from now on.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279487
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Duncan P. N. Exon Smith [Mon, 22 Aug 2016 22:21:07 +0000 (22:21 +0000)]
ADT: Separate some list manipulation API into ilist_base, NFC
Separate algorithms in iplist<T> that don't depend on T into ilist_base,
and unit test them.
While I was adding unit tests for these algorithms anyway, I also added
unit tests for ilist_node_base and ilist_sentinel<T>.
To make the algorithms and unit tests easier to write, I also did the
following minor changes as a drive-by:
- encapsulate Prev/Next in ilist_node_base to so that algorithms are
easier to read, and
- update ilist_node_access API to take nodes by reference.
There should be no real functionality change here.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279484
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Duncan P. N. Exon Smith [Mon, 22 Aug 2016 22:04:16 +0000 (22:04 +0000)]
Fix header comment for unittests/ADT/ilistTest.cpp
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279483
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Tim Shen [Mon, 22 Aug 2016 21:59:26 +0000 (21:59 +0000)]
[ADT] Actually mutate the iterator VisitStack.back().second, not its copy.
Summary: Before the change, *Opt never actually gets updated by the end
of toNext(), so for every next time the loop has to start over from
child_begin(). This bug doesn't affect the correctness, since Visited prevents
it from re-entering the same node again; but it's slow.
Reviewers: dberris, dblaikie, dannyb
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D23649
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279482
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Sanjay Patel [Mon, 22 Aug 2016 21:24:29 +0000 (21:24 +0000)]
[InstCombine] change param type from Instruction to BinaryOperator for icmp helpers; NFCI
This saves some casting in the helper functions and eases some further refactoring.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279478
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Tim Shen [Mon, 22 Aug 2016 21:09:30 +0000 (21:09 +0000)]
[GraphTraits] Replace all NodeType usage with NodeRef
This should finish the GraphTraits migration.
Differential Revision: http://reviews.llvm.org/D23730
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279475
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Duncan P. N. Exon Smith [Mon, 22 Aug 2016 20:51:00 +0000 (20:51 +0000)]
ADT: Remove ilist_*sentinel_traits, NFC
Remove all the dead code around ilist_*sentinel_traits. This is a
follow-up to gutting them as part of r279314 (originally r278974),
staged to prevent broken builds in sub-projects.
Uses were removed from clang in r279457 and lld in r279458.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279473
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Sanjay Patel [Mon, 22 Aug 2016 20:45:06 +0000 (20:45 +0000)]
[InstCombine] use m_APInt to allow icmp (shr exact X, Y), 0 folds for splat constant vectors
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279472
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Pete Cooper [Mon, 22 Aug 2016 20:38:53 +0000 (20:38 +0000)]
Add ADT headers to the cmake headers directory for LLVMSupport. NFC.
Xcode and MSVC list the headers and source files for each library.
LLVMSupport lists included the source files for ADT but not the headers. This
add the ADT headers so that they are browsable by the UI.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279470
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Pete Cooper [Mon, 22 Aug 2016 20:18:28 +0000 (20:18 +0000)]
Add comments and an assert to follow-up on r279113. NFC.
Philip commented on r279113 to ask for better comments as to
when to use the different versions of getName. Its also possible
to assert in the simple case that we aren't an overloaded intrinsic
as those have to use the more capable version of getName.
Thanks for the comments Philip.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279466
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Daniel Berlin [Mon, 22 Aug 2016 19:52:23 +0000 (19:52 +0000)]
IDFCalculator: Remove unused field.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279465
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Matt Arsenault [Mon, 22 Aug 2016 19:33:16 +0000 (19:33 +0000)]
AMDGPU: Split SILowerControlFlow into two pieces
Do most of the lowering in a pre-RA pass. Keep the skip jump
insertion late, plus a few other things that require more
work to move out.
One concern I have is now there may be COPY instructions
which do not have the necessary implicit exec uses
if they will be lowered to v_mov_b32.
This has a positive effect on SGPR usage in shader-db.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279464
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Daniel Berlin [Mon, 22 Aug 2016 19:14:30 +0000 (19:14 +0000)]
MSSA: Factor out phi node placement
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279462
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Daniel Berlin [Mon, 22 Aug 2016 19:14:16 +0000 (19:14 +0000)]
MSSA: Only rename accesses whose defining access is nullptr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279461
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James Molloy [Mon, 22 Aug 2016 19:07:15 +0000 (19:07 +0000)]
[SimplifyCFG] Rewrite SinkThenElseCodeToEnd
[Recommitting now an unrelated assertion in SROA is sorted out]
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.
Round 4. This time we should handle all instructions correctly, and not replace any operands that need to be constant with variables.
This was really hard to determine safely, so the helper function should be put into the Instruction API. I'll do that as a followup.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279460
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James Molloy [Mon, 22 Aug 2016 18:49:42 +0000 (18:49 +0000)]
[SROA] Remove incorrect assertion
Confirmed with aprantl, this assertion is incorrect - code can get here (for example 80-bit FP types) and if it does it's benign. This is exposed by a completely unrelated patch of mine, so stop the compiler falling over.
Original differential: http://reviews.llvm.org/D16187
aprantl's advice to remove assertion: http://lists.llvm.org/pipermail/llvm-commits/Week-of-Mon-
20160815/382129.html
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279454
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Tim Shen [Mon, 22 Aug 2016 18:26:27 +0000 (18:26 +0000)]
[SSP] Do not set __guard_local to hidden for OpenBSD SSP
__guard_local is defined as long on OpenBSD. If the source file contains
a definition of __guard_local, it mismatches with the int8 pointer type
used in LLVM. In that case, Module::getOrInsertGlobal() returns a
cast operation instead of a GlobalVariable. Trying to set the
visibility on the cast operation leads to random segfaults (seen when
compiling the OpenBSD kernel, which also runs with stack protection).
In the kernel, the hidden attribute does not matter. For userspace code,
__guard_local is defined as hidden in the startup code. If a program
re-defines __guard_local, the definition from the startup code will
either win or the linker complains about multiple definitions
(depending on whether the re-defined __guard_local is placed in the
common segment or not).
It also matches what gcc on OpenBSD does.
Thanks Stefan Kempf <sisnkemp@gmail.com> for the patch!
Differential Revision: http://reviews.llvm.org/D23674
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279449
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Jun Bum Lim [Mon, 22 Aug 2016 18:21:56 +0000 (18:21 +0000)]
[InstCombine] Allow sinking from unique predecessor with multiple edges
Summary: We can allow sinking if the single user block has only one unique predecessor, regardless of the number of edges. Note that a switch statement with multiple cases can have the same destination.
Reviewers: mcrosier, majnemer, spatel, reames
Subscribers: reames, mcrosier, llvm-commits
Differential Revision: https://reviews.llvm.org/D23722
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279448
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James Molloy [Mon, 22 Aug 2016 18:13:12 +0000 (18:13 +0000)]
Revert "[SimplifyCFG] Rewrite SinkThenElseCodeToEnd"
This reverts commit r279443. It caused buildbot failures.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279447
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James Molloy [Mon, 22 Aug 2016 17:40:23 +0000 (17:40 +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.
Round 4. This time we should handle all instructions correctly, and not replace any operands that need to be constant with variables.
This was really hard to determine safely, so the helper function should be put into the Instruction API. I'll do that as a followup.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279443
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Simon Pilgrim [Mon, 22 Aug 2016 16:47:55 +0000 (16:47 +0000)]
[X86][AVX] Don't use SubVectorBroadcast if there are additional users of the chain (PR29088)
We could improve on this by making X86SubVBroadcast a full memory intrinsic similar to X86vzload
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279441
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Mehdi Amini [Mon, 22 Aug 2016 16:41:58 +0000 (16:41 +0000)]
Fix Gold Plugin after API change in the LTO API (constify callback type)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279440
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Simon Atanasyan [Mon, 22 Aug 2016 16:18:42 +0000 (16:18 +0000)]
[mips][ias] Support .dtprel[d]word and .tprel[d]word directives
Assembler directives .dtprelword, .dtpreldword, .tprelword, and
.tpreldword generates relocations R_MIPS_TLS_DTPREL32, R_MIPS_TLS_DTPREL64,
R_MIPS_TLS_TPREL32, and R_MIPS_TLS_TPREL64 respectively.
The main motivation for this patch is to be able to write test cases
for checking correctness of the LLD linker's behaviour.
Differential Revision: https://reviews.llvm.org/D23669
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279439
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Mehdi Amini [Mon, 22 Aug 2016 16:17:40 +0000 (16:17 +0000)]
[LTO] Constify the Module Hook function (NFC)
It use to be non-const for the sole purpose of custom handling of
commons symbol. This is moved now in the regular LTO handling now
and such we can constify the callback.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279438
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Krzysztof Parzyszek [Mon, 22 Aug 2016 14:50:12 +0000 (14:50 +0000)]
Reset isUndef when removing subreg from a def operand
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279437
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