Adam Nemet [Thu, 19 Feb 2015 19:15:15 +0000 (19:15 +0000)]
[LoopAccesses] Split out LoopAccessReport from VectorizerReport
The only difference between these two is that VectorizerReport adds a
vectorizer-specific prefix to its messages. When LAA is used in the
vectorizer context the prefix is added when we promote the
LoopAccessReport into a VectorizerReport via one of the constructors.
This is part of the patchset that converts LoopAccessAnalysis into an
actual analysis pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229897
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Adam Nemet [Thu, 19 Feb 2015 19:15:13 +0000 (19:15 +0000)]
[LoopAccesses] Add missing const to APIs in VectorizationReport
When I split out LoopAccessReport from this, I need to create some temps
so constness becomes necessary.
This is part of the patchset that converts LoopAccessAnalysis into an
actual analysis pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229896
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Adam Nemet [Thu, 19 Feb 2015 19:15:10 +0000 (19:15 +0000)]
[LoopAccesses] Add canAnalyzeLoop
This allows the analysis to be attempted with any loop. This feature
will be used with -analysis. (LV only requests the analysis on loops
that have already satisfied these tests.)
This is part of the patchset that converts LoopAccessAnalysis into an
actual analysis pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229895
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Adam Nemet [Thu, 19 Feb 2015 19:15:07 +0000 (19:15 +0000)]
[LoopAccesses] Change debug messages from LV to LAA
Also add pass name as an argument to VectorizationReport::emitAnalysis.
This is part of the patchset that converts LoopAccessAnalysis into an
actual analysis pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229894
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Adam Nemet [Thu, 19 Feb 2015 19:15:04 +0000 (19:15 +0000)]
[LoopAccesses] Create the analysis pass
This is a function pass that runs the analysis on demand. The analysis
can be initiated by querying the loop access info via LAA::getInfo. It
either returns the cached info or runs the analysis.
Symbolic stride information continues to reside outside of this analysis
pass. We may move it inside later but it's not a priority for me right
now. The idea is that Loop Distribution won't support run-time stride
checking at least initially.
This means that when querying the analysis, symbolic stride information
can be provided optionally. Whether stride information is used can
invalidate the cache entry and rerun the analysis. Note that if the
loop does not have any symbolic stride, the entry should be preserved
across Loop Distribution and LV.
Since currently the only user of the pass is LV, I just check that the
symbolic stride information didn't change when using a cached result.
On the LV side, LoopVectorizationLegality requests the info object
corresponding to the loop from the analysis pass. A large chunk of the
diff is due to LAI becoming a pointer from a reference.
A test will be added as part of the -analyze patch.
Also tested that with AVX, we generate identical assembly output for the
testsuite (including the external testsuite) before and after.
This is part of the patchset that converts LoopAccessAnalysis into an
actual analysis pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229893
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Adam Nemet [Thu, 19 Feb 2015 19:15:00 +0000 (19:15 +0000)]
[LoopAccesses] Cache the result of canVectorizeMemory
LAA will be an on-demand analysis pass, so we need to cache the result
of the analysis. canVectorizeMemory is renamed to analyzeLoop which
computes the result. canVectorizeMemory becomes the query function for
the cached result.
This is part of the patchset that converts LoopAccessAnalysis into an
actual analysis pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229892
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Adam Nemet [Thu, 19 Feb 2015 19:14:56 +0000 (19:14 +0000)]
[LoopAccesses] Stash the report from the analysis rather than emitting it
The transformation passes will query this and then emit them as part of
their own report. The currently only user LV is modified to do just
that.
This is part of the patchset that converts LoopAccessAnalysis into an
actual analysis pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229891
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Adam Nemet [Thu, 19 Feb 2015 19:14:52 +0000 (19:14 +0000)]
[LoopAccesses] Make VectorizerParams global + fix for cyclic dep
As LAA is becoming a pass, we can no longer pass the params to its
constructor. This changes the command line flags to have external
storage. These can now be accessed both from LV and LAA.
VectorizerParams is moved out of LoopAccessInfo in order to shorten the
code to access it.
This commits also has the fix (D7731) to the break dependence cycle
between the analysis and vector libraries.
This is part of the patchset that converts LoopAccessAnalysis into an
actual analysis pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229890
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Adam Nemet [Thu, 19 Feb 2015 19:14:34 +0000 (19:14 +0000)]
Revert "Reformat."
This reverts commit r229651.
I'd like to ultimately revert r229650 but this reformat stands in the
way. I'll reformat the affected files once the the loop-access pass is
fully committed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229889
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David Blaikie [Thu, 19 Feb 2015 19:06:04 +0000 (19:06 +0000)]
[orcjit] Include CMake support for the fully_lazy example and fix the build
Not sure if/how to make the CMake build use C++14 for the examples, so
let's stick to C++11 for now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229888
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Colin LeMahieu [Thu, 19 Feb 2015 19:00:00 +0000 (19:00 +0000)]
[Hexagon] Creating HexagonMCInstrInfo namespace as landing zone for static functions detached from HexagonMCInst.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229885
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Eric Christopher [Thu, 19 Feb 2015 18:46:25 +0000 (18:46 +0000)]
Fix grammar in documentation.
Patch by Ralph Campbell!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229884
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Eric Christopher [Thu, 19 Feb 2015 18:46:23 +0000 (18:46 +0000)]
Update and remove a few calls to TargetMachine::getSubtargetImpl
out of the asm printer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229883
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Kostya Serebryany [Thu, 19 Feb 2015 18:45:37 +0000 (18:45 +0000)]
[fuzzer] split main() into FuzzerDriver() that takes a callback as a parameter and a tiny main() in a separate file
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229882
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Ben Langmuir [Thu, 19 Feb 2015 18:22:35 +0000 (18:22 +0000)]
Assume the original file is created before release in LockFileManager
This is true in clang, and let's us remove the problematic code that
waits around for the original file and then times out if it doesn't get
created in short order. This caused any 'dead' lock file or legitimate
time out to cause a cascade of timeouts in any processes waiting on the
same lock (even if they only just showed up).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229881
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Kostya Serebryany [Thu, 19 Feb 2015 18:21:12 +0000 (18:21 +0000)]
[fuzzer] properly annotate fallthrough, add one more entry to FAQ
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229880
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Colin LeMahieu [Thu, 19 Feb 2015 17:38:39 +0000 (17:38 +0000)]
[Hexagon] Removing static variable holding MCInstrInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229872
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Benjamin Kramer [Thu, 19 Feb 2015 17:19:43 +0000 (17:19 +0000)]
LSR: Move set instead of copying. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229871
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Sanjay Patel [Thu, 19 Feb 2015 16:59:11 +0000 (16:59 +0000)]
add X86 load folding tests for unary math ops
X86 load folding is fragile; eg, the tests here
don't work without AVX even though they should. This
is because we have a mix of tablegen patterns that have
been added over time, and we have a load folding table
used by the peephole optimizer that has to be kept in
sync with the ever-changing ISA and tablegen defs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229870
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Rafael Espindola [Thu, 19 Feb 2015 16:08:20 +0000 (16:08 +0000)]
Avoid conversion to float when creating ConstantDataArray/ConstantDataVector.
Patch by Raoux, Thomas F!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229864
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Benjamin Kramer [Thu, 19 Feb 2015 15:26:17 +0000 (15:26 +0000)]
Demote vectors to arrays. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229861
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Chandler Carruth [Thu, 19 Feb 2015 15:21:57 +0000 (15:21 +0000)]
[x86] Delete still more piles of complex code now that we have a good
systematic lowering of v8i16.
This required a slight strategy shift to prefer unpack lowerings in more
places. While this isn't a cut-and-dry win in every case, it is in the
overwhelming majority. There are only a few places where the old
lowering would probably be a touch faster, and then only by a small
margin.
In some cases, this is yet another significant improvement.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229859
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Chandler Carruth [Thu, 19 Feb 2015 15:06:13 +0000 (15:06 +0000)]
[x86] Teach the unpack lowering how to lower with an initial unpack in
addition to lowering to trees rooted in an unpack.
This saves shuffles and or registers in many various ways, lets us
handle another class of v4i32 shuffles pre SSE4.1 without domain
crosses, etc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229856
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Chandler Carruth [Thu, 19 Feb 2015 14:08:24 +0000 (14:08 +0000)]
[x86] Dramatically improve v8i16 shuffle lowering by not using its
terribly complex partial blend logic.
This code path was one of the more complex and bug prone when it first
went in and it hasn't faired much better. Ultimately, with the simpler
basis for unpack lowering and support bit-math blending, this is
completely obsolete. In the worst case without this we generate
different but equivalent instructions. However, in many cases we
generate much better code. This is especially true when blends or pshufb
is available.
This does expose one (minor) weakness of the unpack lowering that I'll
try to address.
In case you were wondering, this is actually a big part of what I've
been trying to pull off in the recent string of commits.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229853
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Chandler Carruth [Thu, 19 Feb 2015 13:56:49 +0000 (13:56 +0000)]
[x86] Remove the final fallback in the v8i16 lowering that isn't really
needed, and significantly improve the SSSE3 path.
This makes the new strategy much more clear. If we can blend, we just go
with that. If we can't blend, we try to permute into an unpack so
that we handle cases where the unpack doing the blend also simplifies
the shuffle. If that fails and we've got SSSE3, we now call into
factored-out pshufb lowering code so that we leverage the fact that
pshufb can set up a blend for us while shuffling. This generates great
code, especially because we *know* we don't have a fast blend at this
point. Finally, we fall back on decomposing into permutes and blends
because we do at least have a bit-math-based blend if we need to use
that.
This pretty significantly improves some of the v8i16 code paths. We
never need to form pshufb for the single-input shuffles because we have
effective target-specific combines to form it there, but we were missing
its effectiveness in the blends.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229851
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Chandler Carruth [Thu, 19 Feb 2015 13:15:12 +0000 (13:15 +0000)]
[x86] Simplify the pre-SSSE3 v16i8 lowering significantly by decomposing
them into permutes and a blend with the generic decomposition logic.
This works really well in almost every case and lets the code only
manage the expansion of a single input into two v8i16 vectors to perform
the actual shuffle. The blend-based merging is often much nicer than the
pack based merging that this replaces. The only place where it isn't we
end up blending between two packs when we could do a single pack. To
handle that case, just teach the v2i64 lowering to handle these blends
by digging out the operands.
With this we're down to only really random permutations that cause an
explosion of instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229849
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Chandler Carruth [Thu, 19 Feb 2015 12:10:37 +0000 (12:10 +0000)]
[x86] Remove the insanely over-aggressive unpack lowering strategy for
v16i8 shuffles, and replace it with new facilities.
This uses precise patterns to match exact unpacks, and the new
generalized unpack lowering only when we detect a case where we will
have to shuffle both inputs anyways and they terminate in exactly
a blend.
This fixes all of the blend horrors that I uncovered by always lowering
blends through the vector shuffle lowering. It also removes *sooooo*
much of the crazy instruction sequences required for v16i8 lowering
previously. Much cleaner now.
The only "meh" aspect is that we sometimes use pshufb+pshufb+unpck when
it would be marginally nicer to use pshufb+pshufb+por. However, the
difference there is *tiny*. In many cases its a win because we re-use
the pshufb mask. In others, we get to avoid the pshufb entirely. I've
left a FIXME, but I'm dubious we can really do better than this. I'm
actually pretty happy with this lowering now.
For SSE2 this exposes some horrors that were really already there. Those
will have to fixed by changing a different path through the v16i8
lowering.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229846
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Jozef Kolek [Thu, 19 Feb 2015 11:51:32 +0000 (11:51 +0000)]
[mips][microMIPS] Make usage of AND16, OR16 and XOR16 by code generator
Differential Revision: http://reviews.llvm.org/D7611
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229845
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Chandler Carruth [Thu, 19 Feb 2015 11:43:37 +0000 (11:43 +0000)]
[x86] The SELECT x86 DAG combine also does legalization. It used to rely
on things not being marked as either custom or legal, but we now do
custom lowering of more VSELECT nodes. To cope with this, manually
replicate the legality tests here. These have to stay in sync with the
set of tests used in the custom lowering of VSELECT.
Ideally, we wouldn't do any of this combine-based-legalization when we
have an actual custom legalization step for VSELECT, but I'm not going
to be able to rewrite all of that today.
I don't have a test case for this currently, but it was found when
compiling a number of the test-suite benchmarks. I'll try to reduce
a test case and add it.
This should at least fix the test-suite fallout on build bots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229844
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Igor Laevsky [Thu, 19 Feb 2015 11:39:04 +0000 (11:39 +0000)]
Add few simple tests to check statepoint placement for invoke instructions.
Differential Revision: http://reviews.llvm.org/D7535
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229842
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Michael Kuperstein [Thu, 19 Feb 2015 11:38:11 +0000 (11:38 +0000)]
Reverting r229831 due to multiple ARM/PPC/MIPS build-bot failures.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229841
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Igor Laevsky [Thu, 19 Feb 2015 11:28:47 +0000 (11:28 +0000)]
Implement invoke statepoint verification.
Differential Revision: http://reviews.llvm.org/D7366
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229840
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Igor Laevsky [Thu, 19 Feb 2015 11:02:11 +0000 (11:02 +0000)]
Add invoke related functionality into StatepointSite classes.
Differential Revision: http://reviews.llvm.org/D7364
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229838
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Elena Demikhovsky [Thu, 19 Feb 2015 10:48:04 +0000 (10:48 +0000)]
AVX-512: Full implementation for VRNDSCALESS/SD instructions and intrinsics.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229837
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Chandler Carruth [Thu, 19 Feb 2015 10:46:52 +0000 (10:46 +0000)]
[x86] Add support for bit-wise blending and use it in the v8 and v16
lowering paths. I'm going to be leveraging this to simplify a lot of the
overly complex lowering of v8 and v16 shuffles in pre-SSSE3 modes.
Sadly, this isn't profitable on v4i32 and v2i64. There, the float and
double blending instructions for pre-SSE4.1 are actually pretty good,
and we can't beat them with bit math. And once SSE4.1 comes around we
have direct blending support and this ceases to be relevant.
Also, some of the test cases look odd because the domain fixer
canonicalizes these to floating point domain. That's OK, it'll use the
integer domain when it matters and some day I may be able to update
enough of LLVM to canonicalize the other way.
This restores almost all of the regressions from teaching x86's vselect
lowering to always use vector shuffle lowering for blends. The remaining
problems are because the v16 lowering path is still doing crazy things.
I'll be re-arranging that strategy in more detail in subsequent commits
to finish recovering the performance here.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229836
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Chandler Carruth [Thu, 19 Feb 2015 10:36:19 +0000 (10:36 +0000)]
[x86,sdag] Two interrelated changes to the x86 and sdag code.
First, don't combine bit masking into vector shuffles (even ones the
target can handle) once operation legalization has taken place. Custom
legalization of vector shuffles may exist for these patterns (making the
predicate return true) but that custom legalization may in some cases
produce the exact bit math this matches. We only really want to handle
this prior to operation legalization.
However, the x86 backend, in a fit of awesome, relied on this. What it
would do is mark VSELECTs as expand, which would turn them into
arithmetic, which this would then match back into vector shuffles, which
we would then lower properly. Amazing.
Instead, the second change is to teach the x86 backend to directly form
vector shuffles from VSELECT nodes with constant conditions, and to mark
all of the vector types we support lowering blends as shuffles as custom
VSELECT lowering. We still mark the forms which actually support
variable blends as *legal* so that the custom lowering is bypassed, and
the legal lowering can even be used by the vector shuffle legalization
(yes, i know, this is confusing. but that's how the patterns are
written).
This makes the VSELECT lowering much more sensible, and in fact should
fix a bunch of bugs with it. However, as you'll see in the test cases,
right now what it does is point out the *hilarious* deficiency of the
new vector shuffle lowering when it comes to blends. Fortunately, my
very next patch fixes that. I can't submit it yet, because that patch,
somewhat obviously, forms the exact and/or pattern that the DAG combine
is matching here! Without this patch, teaching the vector shuffle
lowering to produce the right code infloops in the DAG combiner. With
this patch alone, we produce terrible code but at least lower through
the right paths. With both patches, all the regressions here should be
fixed, and a bunch of the improvements (like using 2 shufps with no
memory loads instead of 2 andps with memory loads and an orps) will
stay. Win!
There is one other change worth noting here. We had hilariously wrong
vectorization cost estimates for vselect because we fell through to the
code path that assumed all "expand" vector operations are scalarized.
However, the "expand" lowering of VSELECT is vector bit math, most
definitely not scalarized. So now we go back to the correct if horribly
naive cost of "1" for "not scalarized". If anyone wants to add actual
modeling of shuffle costs, that would be cool, but this seems an
improvement on its own. Note the removal of 16 and 32 "costs" for doing
a blend. Even in SSE2 we can blend in fewer than 16 instructions. ;] Of
course, we don't right now because of OMG bad code, but I'm going to fix
that. Next patch. I promise.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229835
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Michael Kuperstein [Thu, 19 Feb 2015 09:01:04 +0000 (09:01 +0000)]
Use std::bitset for SubtargetFeatures
Previously, subtarget features were a bitfield with the underlying type being uint64_t.
Since several targets (X86 and ARM, in particular) have hit or were very close to hitting this bound, switching the features to use a bitset.
No functional change.
Differential Revision: http://reviews.llvm.org/D7065
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229831
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Davide Italiano [Thu, 19 Feb 2015 07:27:14 +0000 (07:27 +0000)]
[Support/Timer] Make GetMallocUsage() aware of jemalloc.
Differential Revision: D7657
Reviewed by: shankarke, majnemer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229824
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Lang Hames [Thu, 19 Feb 2015 05:33:30 +0000 (05:33 +0000)]
[Orc][Kaleidoscope] Fix typo in tutorial comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229821
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Dmitri Gribenko [Thu, 19 Feb 2015 05:30:16 +0000 (05:30 +0000)]
Provide the same ABI regardless of NDEBUG
For projects depending on LLVM, I find it very useful to combine a
release-no-asserts build of LLVM with a debug+asserts build of the dependent
project. The motivation is that when developing a dependent project, you are
debugging that project itself, not LLVM. In my usecase, a significant part of
the runtime is spent in LLVM optimization passes, so I would like to build LLVM
without assertions to get the best performance from this combination.
Currently, `lib/Support/Debug.cpp` changes the set of symbols it provides
depending on NDEBUG, while `include/llvm/Support/Debug.h` requires extra
symbols when NDEBUG is not defined. Thus, it is not possible to enable
assertions in an external project that uses facilities of `Debug.h`.
This patch changes `Debug.cpp` and `Valgrind.cpp` to always define the symbols
that other code may depend on when #including LLVM headers without NDEBUG.
http://reviews.llvm.org/D7662
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229819
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Lang Hames [Thu, 19 Feb 2015 01:32:43 +0000 (01:32 +0000)]
[Orc][Kaleidoscope] Make the 'fully lazy' orc kaleidoscope tutorial lazier still.
The new JIT doesn't IRGen stubs until they're referenced.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229807
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Lang Hames [Thu, 19 Feb 2015 01:31:25 +0000 (01:31 +0000)]
[Orc] Fix a bug in the compile callback manager: trampoline ids need to be fixed
up before returning them to the available pool.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229806
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Eric Christopher [Thu, 19 Feb 2015 01:26:28 +0000 (01:26 +0000)]
Remove the local subtarget variable from the SystemZ asm printer
and update the two calls accordingly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229805
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Eric Christopher [Thu, 19 Feb 2015 01:10:55 +0000 (01:10 +0000)]
Remove a few more calls to TargetMachine::getSubtarget from the
R600 port.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229804
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Eric Christopher [Thu, 19 Feb 2015 01:10:53 +0000 (01:10 +0000)]
Grab the subtarget off of the machine function for the R600
asm printer and clean up a bunch of uses.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229803
91177308-0d34-0410-b5e6-
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Eric Christopher [Thu, 19 Feb 2015 01:10:49 +0000 (01:10 +0000)]
Remove the DisasmEnabled AsmPrinter variable and just look it
up on the subtarget where it's set anyhow than looking it up
2-3 times in the same place.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229802
91177308-0d34-0410-b5e6-
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Peter Collingbourne [Thu, 19 Feb 2015 00:45:07 +0000 (00:45 +0000)]
MC: Remove NullStreamer hook, as it is redundant with NullTargetStreamer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229799
91177308-0d34-0410-b5e6-
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Peter Collingbourne [Thu, 19 Feb 2015 00:45:04 +0000 (00:45 +0000)]
llvm-mc: Use Target::createNullStreamer to fix crashes on target-specific asm directives.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229798
91177308-0d34-0410-b5e6-
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Peter Collingbourne [Thu, 19 Feb 2015 00:45:02 +0000 (00:45 +0000)]
Introduce Target::createNullTargetStreamer and use it from IRObjectFile.
A null MCTargetStreamer allows IRObjectFile to ignore target-specific
directives. Previously we were crashing.
Differential Revision: http://reviews.llvm.org/D7711
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229797
91177308-0d34-0410-b5e6-
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Michael Gottesman [Thu, 19 Feb 2015 00:42:38 +0000 (00:42 +0000)]
[objc-arc] Introduce the concept of RCIdentity and rename all relevant functions to use that name. NFC.
The RCIdentity root ("Reference Count Identity Root") of a value V is a
dominating value U for which retaining or releasing U is equivalent to
retaining or releasing V. In other words, ARC operations on V are
equivalent to ARC operations on U.
This is a useful property to ascertain since we can use this in the ARC
optimizer to make it easier to match up ARC operations by always mapping
ARC operations to RCIdentityRoots instead of pointers themselves. Then
we perform pairing of retains, releases which are applied to the same
RCIdentityRoot.
In general, the two ways that we see RCIdentical values in ObjC are via:
1. PointerCasts
2. Forwarding Calls that return their argument verbatim.
As such in ObjC, two RCIdentical pointers must always point to the same
memory location.
Previously this concept was implicit in the code and various methods
that dealt with this concept were given functional names that did not
conform to any name in the "ARC" model. This often times resulted in
code that was hard for the non-ARC acquanted to understand resulting in
unhappiness and confusion.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229796
91177308-0d34-0410-b5e6-
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Michael Gottesman [Thu, 19 Feb 2015 00:42:34 +0000 (00:42 +0000)]
[objc-arc-contract] Rename contractRelease => tryToContractReleaseIntoStoreStrong.
NFC. Makes it clearer what this method is actually supposed to do.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229795
91177308-0d34-0410-b5e6-
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Michael Gottesman [Thu, 19 Feb 2015 00:42:30 +0000 (00:42 +0000)]
[objc-arc-contract] Refactor out tryToPeepholeInstruction into its own method. NFC.
The main method of ObjCARCContract is really large and busy. By refactoring this
out, it becomes easier to reason about.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229794
91177308-0d34-0410-b5e6-
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Michael Gottesman [Thu, 19 Feb 2015 00:42:27 +0000 (00:42 +0000)]
[objc-arc-contract] Reorganize the code a bit and make the debug output easier to read.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229793
91177308-0d34-0410-b5e6-
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Duncan P. N. Exon Smith [Thu, 19 Feb 2015 00:37:21 +0000 (00:37 +0000)]
IR: Drop scope from MDTemplateParameter
Follow-up to r229740, which removed `DITemplate*::getContext()` after my
upgrade script revealed that scopes are always `nullptr` for template
parameters. This is the other shoe: drop `scope:` from
`MDTemplateParameter` and its two subclasses. (Note: a bitcode upgrade
would be pointless, since the hierarchy hasn't been moved into place.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229791
91177308-0d34-0410-b5e6-
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Eric Christopher [Thu, 19 Feb 2015 00:22:47 +0000 (00:22 +0000)]
Avoid using a self-referential initializer and fix up uses.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229790
91177308-0d34-0410-b5e6-
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Eric Christopher [Thu, 19 Feb 2015 00:15:33 +0000 (00:15 +0000)]
80-column fixups.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229789
91177308-0d34-0410-b5e6-
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Eric Christopher [Thu, 19 Feb 2015 00:08:27 +0000 (00:08 +0000)]
Remove all use of is64bit off of NVPTXSubtarget and clean up code
accordingly. This changes the constructors of a number of classes
that don't need to know the subtarget's 64-bitness.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229787
91177308-0d34-0410-b5e6-
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Eric Christopher [Thu, 19 Feb 2015 00:08:23 +0000 (00:08 +0000)]
Remove all use of getDrvInterface off of NVPTXSubtarget and clean
up code accordingly. Delete code that was checking for all cases
of an enum.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229786
91177308-0d34-0410-b5e6-
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Eric Christopher [Thu, 19 Feb 2015 00:08:14 +0000 (00:08 +0000)]
Migrate the NVPTX backend asm printer to a per function subtarget.
This involved moving two non-subtarget dependent features (64-bitness
and the driver interface) to the NVPTX target machine and updating
the uses (or migrating around the subtarget use for ease of review).
Otherwise use the cached subtarget or create a default subtarget
based on the TargetMachine cpu and feature string for the module
level assembler emission.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229785
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Chandler Carruth [Wed, 18 Feb 2015 23:20:49 +0000 (23:20 +0000)]
[x86] Merge checks for a recently added test case that is the same on
all SSE variants and AVX variants.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229770
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Duncan P. N. Exon Smith [Wed, 18 Feb 2015 23:17:51 +0000 (23:17 +0000)]
IR: Allow MDSubrange to have 'count: -1'
It turns out that `count: -1` is a special value indicating an empty
array, such as `Values` in:
struct T {
unsigned Count;
int Values[];
};
Handle it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229769
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Reid Kleckner [Wed, 18 Feb 2015 23:17:41 +0000 (23:17 +0000)]
Add an IR-to-IR test for dwarf EH preparation using opt
This tests the simple resume instruction elimination logic that we have
before making some changes to it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229768
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Lang Hames [Wed, 18 Feb 2015 23:16:09 +0000 (23:16 +0000)]
[Orc][Kaleidoscope] Fix a fixme - no reason we can't use C++14 in the tutorials.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229765
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Lang Hames [Wed, 18 Feb 2015 23:08:56 +0000 (23:08 +0000)]
[Orc][Kaleidoscope] Make the Orc/Kaleidoscope tutorials easier to build on
Darwin.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229761
91177308-0d34-0410-b5e6-
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Lang Hames [Wed, 18 Feb 2015 23:07:13 +0000 (23:07 +0000)]
[Orc][Kaleidoscope] Make sure to look for the mangled name when updating the
function body pointer in the fully lazy orc/kaleidoscope tutorial.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229760
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Colin LeMahieu [Wed, 18 Feb 2015 23:00:22 +0000 (23:00 +0000)]
[Objdump] Fixing crash when printing symbols in ELF sections with special types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229759
91177308-0d34-0410-b5e6-
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Andrew Kaylor [Wed, 18 Feb 2015 22:52:18 +0000 (22:52 +0000)]
Style and formatting fixes for r229715
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229758
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Peter Collingbourne [Wed, 18 Feb 2015 22:25:35 +0000 (22:25 +0000)]
CMake: Fix add_lit_target for the case where a test suite has zero target dependencies.
This can happen with a standalone project containing a test suite with no
internal dependencies.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229753
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Marek Olsak [Wed, 18 Feb 2015 22:12:45 +0000 (22:12 +0000)]
R600/SI: Fix READLANE and WRITELANE lane select for VI
VOP2 declares vsrc1, but VOP3 declares src1.
We can't use the same "ins" if the operands have different names in VOP2
and VOP3 encodings.
This fixes a hang in geometry shaders which spill M0 on VI.
(BTW it doesn't look like M0 needs spilling and the spilling seems
duplicated 3 times)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229752
91177308-0d34-0410-b5e6-
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Marek Olsak [Wed, 18 Feb 2015 22:12:41 +0000 (22:12 +0000)]
R600/SI: Simplify verification of AMDGPU::OPERAND_REG_INLINE_C
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229751
91177308-0d34-0410-b5e6-
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Marek Olsak [Wed, 18 Feb 2015 22:12:37 +0000 (22:12 +0000)]
R600/SI: Remove explicit VOP operand checking
This should be handled by the OperandType checking.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229750
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Duncan P. N. Exon Smith [Wed, 18 Feb 2015 21:16:33 +0000 (21:16 +0000)]
IR: Swap order of name and value in MDEnum
Put the name before the value in assembly for `MDEnum`. While working
on the testcase upgrade script for the new hierarchy, I noticed that it
"looks nicer" to have the name first, since it lines the names up in the
(somewhat typical) case that they have a common prefix.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229747
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Duncan P. N. Exon Smith [Wed, 18 Feb 2015 20:47:52 +0000 (20:47 +0000)]
IR: Add MDCompositeTypeBase::replace*()
Add `replaceElements()`, `replaceVTableHolder()`, and
`replaceTemplateParams()` to `MDCompositeTypeBase`. Included an
assertion in `replaceElements()` to match the one in
`DICompositeType::replaceArrays()`.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229744
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Duncan P. N. Exon Smith [Wed, 18 Feb 2015 20:36:09 +0000 (20:36 +0000)]
IR: Add MDCompileUnit::replace*()
Add `MDCompileUnit::replaceGlobalVariables()` and
`MDCompileUnit::replaceSubprograms()`.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229743
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Duncan P. N. Exon Smith [Wed, 18 Feb 2015 20:32:57 +0000 (20:32 +0000)]
IR: Add MDSubprogram::replaceFunction()
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229742
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Duncan P. N. Exon Smith [Wed, 18 Feb 2015 20:30:45 +0000 (20:30 +0000)]
IR: Drop the scope in DI template parameters
The scope/context is always the compile unit, which we replace with
`nullptr` anyway (via `getNonCompileUnitScope()`). Drop it explicitly.
I noticed this field was always null while writing testcase upgrade
scripts to transition to the new hierarchy. Seems wasteful to
transition it over if it's already out-of-use.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229740
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Duncan P. N. Exon Smith [Wed, 18 Feb 2015 19:56:50 +0000 (19:56 +0000)]
Fix -DNDEBUG -Werror build after r229733
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229736
91177308-0d34-0410-b5e6-
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Reid Kleckner [Wed, 18 Feb 2015 19:52:46 +0000 (19:52 +0000)]
dos2unix the WinEH file and tests
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229735
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Duncan P. N. Exon Smith [Wed, 18 Feb 2015 19:46:02 +0000 (19:46 +0000)]
IR: isScopeRef() should check isScope()
r229733 removed an invalid use of `DIScopeRef`, so now we can enforce
that a `DIScopeRef` is actually a scope.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229734
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Duncan P. N. Exon Smith [Wed, 18 Feb 2015 19:39:36 +0000 (19:39 +0000)]
IR: Avoid DIScopeRef in DIImportedEntity::getEntity()
`DIImportedEntity::getEntity()` currently returns a `DIScopeRef`, but
the nodes it references aren't always `DIScope`s. In particular, it can
reference global variables.
Introduce `DIDescriptorRef` to avoid the lie.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229733
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Zachary Turner [Wed, 18 Feb 2015 19:32:28 +0000 (19:32 +0000)]
Make frem.ll flush after calling printf.
Without this, the test was flaky, and FileCheck would sometimes
not detect any input on stdin.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229732
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Sanjoy Das [Wed, 18 Feb 2015 19:32:25 +0000 (19:32 +0000)]
Partial fix for bug 22589
Don't spend the entire iteration space in the scalar loop prologue if
computing the trip count overflows. This change also gets rid of the
backedge check in the prologue loop and the extra check for
overflowing trip-count.
Differential Revision: http://reviews.llvm.org/D7715
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229731
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Zachary Turner [Wed, 18 Feb 2015 19:32:05 +0000 (19:32 +0000)]
Modify llvm-readobj to dump symbol record bytes.
This will help us study the format of individual symbol
records more closely.
Differential Revision: http://reviews.llvm.org/D7664
Reviewed by: Timur Iskhodzhanov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229730
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Chris Bieneman [Wed, 18 Feb 2015 19:25:47 +0000 (19:25 +0000)]
Adding install targets for individual LLVM tools and libraries.
Summary:
* add_llvm_tool and add_llvm_library now add install-${name} targets to install specific components
* added installhdrs target to install just the LLVM headers
* The above changes only apply for single-configuration generators (Ninja, Makefiles...), not for multi-configuration generators (Visual Studio, Xcode...)
Reviewers: pete
Reviewed By: pete
Subscribers: pete, llvm-commits
Differential Revision: http://reviews.llvm.org/D7619
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229727
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Justin Bogner [Wed, 18 Feb 2015 19:01:06 +0000 (19:01 +0000)]
InstrProf: Don't combine expansion regions with code regions
This was leading to duplicate counts when a code region happened to
overlap exactly with an expansion. The combining behaviour only makes
sense for code regions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229723
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David Blaikie [Wed, 18 Feb 2015 18:52:49 +0000 (18:52 +0000)]
Remove unused member variables (-Wunused-private-field)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229722
91177308-0d34-0410-b5e6-
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Chris Bieneman [Wed, 18 Feb 2015 18:52:11 +0000 (18:52 +0000)]
Fixing a CMake developer warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229721
91177308-0d34-0410-b5e6-
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Chris Bieneman [Wed, 18 Feb 2015 18:52:06 +0000 (18:52 +0000)]
Enable standard so versioning for libLLVM.
Summary: This resolves Bugzilla bug 15493.
Reviewers: chapuni, pete
Reviewed By: pete
Subscribers: pete, llvm-commits
Differential Revision: http://reviews.llvm.org/D6157
Conflicts:
cmake/modules/AddLLVM.cmake
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229720
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Justin Bogner [Wed, 18 Feb 2015 18:40:46 +0000 (18:40 +0000)]
InstrProf: Handle unknown functions if they consist only of zero-regions
This comes up when we generate coverage for a function but don't end
up emitting the function at all - dead static functions or inline
functions that aren't referenced in a particular TU, for example. In
these cases we'd like to show that the function was never called,
which is trivially true.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229717
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Andrew Kaylor [Wed, 18 Feb 2015 18:31:51 +0000 (18:31 +0000)]
Adding implementation to outline C++ catch handlers for native Windows 64 exception handling.
Differential Revision: http://reviews.llvm.org/D7363
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229715
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Justin Bogner [Wed, 18 Feb 2015 18:01:14 +0000 (18:01 +0000)]
InstrProf: Make CoverageMapping testable and add a basic unit test
Make CoverageMapping easier to create, so that we can write targeted
unit tests for its internals, and add a some infrastructure to write
these tests. Finally, add a simple unit test for basic functionality.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229709
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Jozef Kolek [Wed, 18 Feb 2015 17:33:56 +0000 (17:33 +0000)]
[mips][microMIPS] Make usage of ADDU16 and SUBU16 by code generator
Differential Revision: http://reviews.llvm.org/D7609
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229706
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Jozef Kolek [Wed, 18 Feb 2015 17:15:48 +0000 (17:15 +0000)]
[mips][microMIPS] Implement JALX instruction
Differential Revision: http://reviews.llvm.org/D5047
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229702
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Daniel Sanders [Wed, 18 Feb 2015 16:24:50 +0000 (16:24 +0000)]
[mips] Add backend support for Mips32r[35] and Mips64r[35].
Summary:
These ISA's didn't add any instructions so they are almost identical to
Mips32r2 and Mips64r2. Even the ELF e_flags are the same, However the ISA
revision in .MIPS.abiflags is 3 or 5 respectively instead of 2.
Reviewers: vmedic
Reviewed By: vmedic
Subscribers: tomatabacu, llvm-commits, atanasyan
Differential Revision: http://reviews.llvm.org/D7381
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229695
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Kit Barton [Wed, 18 Feb 2015 16:21:46 +0000 (16:21 +0000)]
This patch adds the VSX logical instructions introduced in the Power ISA 2.07. It also removes the added complexity that favors VMX versions of the three instructions.
Phabricator review: http://reviews.llvm.org/D7616
Commiting on Nemanja's behalf.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229694
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Tom Stellard [Wed, 18 Feb 2015 16:08:17 +0000 (16:08 +0000)]
R600/SI: Don't set isCodeGenOnly = 1 on all instructions
We only need to set this on pseudo instructions which won't
be used by the assembler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229689
91177308-0d34-0410-b5e6-
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Tom Stellard [Wed, 18 Feb 2015 16:08:15 +0000 (16:08 +0000)]
R600/SI: Add missing VOP1 instructions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229688
91177308-0d34-0410-b5e6-
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Tom Stellard [Wed, 18 Feb 2015 16:08:14 +0000 (16:08 +0000)]
R600/SI: Add missing VOP2 instructions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229687
91177308-0d34-0410-b5e6-
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Tom Stellard [Wed, 18 Feb 2015 16:08:13 +0000 (16:08 +0000)]
R600/SI: Add definition for S_CBRANCH_G_FORK
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229686
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Tom Stellard [Wed, 18 Feb 2015 16:08:11 +0000 (16:08 +0000)]
R600/SI: Add missing SOP1 instructions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229685
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