OSDN Git Service
Craig Topper [Fri, 29 Mar 2019 19:09:37 +0000 (19:09 +0000)]
[X86] Add test cases showing failure to use RMW form of negate when only flags are used. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357300
91177308-0d34-0410-b5e6-
96231b3b80d8
Nirav Dave [Fri, 29 Mar 2019 18:50:22 +0000 (18:50 +0000)]
[DAG] Avoid redundancy in StoreMerge TokenFactor generation.
Avoid generating redundant TokenFactor when all merged stores have
the same chain.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357299
91177308-0d34-0410-b5e6-
96231b3b80d8
Craig Topper [Fri, 29 Mar 2019 18:36:40 +0000 (18:36 +0000)]
[X86] Use cached OptForSize in X86ISelDAGToDAG.cpp instead of pulling it from the function attribute. NFCI
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357297
91177308-0d34-0410-b5e6-
96231b3b80d8
Simon Pilgrim [Fri, 29 Mar 2019 18:23:08 +0000 (18:23 +0000)]
[SystemZ] Regenerate double constant comparison test
Prep work for PR40800 (Add UNDEF handling to SelectionDAG::FoldSetCC)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357295
91177308-0d34-0410-b5e6-
96231b3b80d8
Simon Pilgrim [Fri, 29 Mar 2019 18:22:18 +0000 (18:22 +0000)]
[MIPS] Regenerate double constant comparison test
Prep work for PR40800 (Add UNDEF handling to SelectionDAG::FoldSetCC)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357294
91177308-0d34-0410-b5e6-
96231b3b80d8
Simon Pilgrim [Fri, 29 Mar 2019 18:21:19 +0000 (18:21 +0000)]
[ARM] Regenerate execute-only float comparison tests
Prep work for PR40800 (Add UNDEF handling to SelectionDAG::FoldSetCC)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357293
91177308-0d34-0410-b5e6-
96231b3b80d8
Sanjay Patel [Fri, 29 Mar 2019 17:51:39 +0000 (17:51 +0000)]
[InstCombine] autogenerate complete checks; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357291
91177308-0d34-0410-b5e6-
96231b3b80d8
Scott Linder [Fri, 29 Mar 2019 17:49:51 +0000 (17:49 +0000)]
[AMDGPU] Add an additional Code Object V3 assembler example
Document the intended use of the `.amdgcn.next_free_{s,v}gpr` in the
context of multiple kernels and functions.
Differential Revision: https://reviews.llvm.org/D59949
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357289
91177308-0d34-0410-b5e6-
96231b3b80d8
Sanjay Patel [Fri, 29 Mar 2019 17:47:51 +0000 (17:47 +0000)]
[InstCombine] regenerate test checks; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357288
91177308-0d34-0410-b5e6-
96231b3b80d8
Simon Pilgrim [Fri, 29 Mar 2019 17:46:06 +0000 (17:46 +0000)]
[AArch64] Regenerate half precision tests
Prep work for PR40800 (Add UNDEF handling to SelectionDAG::FoldSetCC)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357286
91177308-0d34-0410-b5e6-
96231b3b80d8
Mircea Trofin [Fri, 29 Mar 2019 17:39:17 +0000 (17:39 +0000)]
[llvm][NFC] Factor out logic for getting incoming & back Loop edges
Reviewers: davidxl
Reviewed By: davidxl
Subscribers: hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D59967
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357284
91177308-0d34-0410-b5e6-
96231b3b80d8
Nirav Dave [Fri, 29 Mar 2019 17:35:56 +0000 (17:35 +0000)]
[DAGCombine] Prune unnused nodes.
Summary:
Nodes that have no uses are eventually pruned when they are selected
from the worklist. Record nodes newly added to the worklist or DAG and
perform pruning after every combine attempt.
Reviewers: efriedma, RKSimon, craig.topper, spatel, jyknight
Reviewed By: jyknight
Subscribers: jdoerfert, jyknight, nemanjai, jvesely, nhaehnle, javed.absar, hiraditya, jsji, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D58070
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357283
91177308-0d34-0410-b5e6-
96231b3b80d8
Simon Pilgrim [Fri, 29 Mar 2019 17:35:11 +0000 (17:35 +0000)]
[ARM] Regenerate vector comparison tests
Prep work for PR40800 (Add UNDEF handling to SelectionDAG::FoldSetCC)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357281
91177308-0d34-0410-b5e6-
96231b3b80d8
Evandro Menezes [Fri, 29 Mar 2019 17:28:11 +0000 (17:28 +0000)]
[CodeGen] Refactor the option for the maximum jump table size
Refactor the option `max-jump-table-size` to default to the maximum
representable number. Essentially, NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357280
91177308-0d34-0410-b5e6-
96231b3b80d8
Nirav Dave [Fri, 29 Mar 2019 17:26:40 +0000 (17:26 +0000)]
[DAG] Set up infrastructure to avoid smart constructor-based dangling nodes
Summary:
Various SelectionDAG non-combine operations (e.g. the getNode smart
constructor and legalization) may leave dangling nodes by applying
optimizations without fully pruning unused result values. This results
in nodes that are never added to the worklist and therefore can not be
pruned.
Add a node inserter for the combiner to make sure such nodes have the
chance of being pruned. This allows a number of additional peephole
optimizations.
Reviewers: efriedma, RKSimon, craig.topper, jyknight
Reviewed By: jyknight
Subscribers: msearles, jyknight, sdardis, nemanjai, javed.absar, hiraditya, jrtc27, atanasyan, jsji, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D58068
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357279
91177308-0d34-0410-b5e6-
96231b3b80d8
Simon Pilgrim [Fri, 29 Mar 2019 17:20:27 +0000 (17:20 +0000)]
[X86] Fix some tests using fcmp with undef arguments
Prep work for PR40800 (Add UNDEF handling to SelectionDAG::FoldSetCC)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357278
91177308-0d34-0410-b5e6-
96231b3b80d8
Sanjay Patel [Fri, 29 Mar 2019 16:49:38 +0000 (16:49 +0000)]
[InstCombine] move shuffle canonicalizations before other transforms
This may not be NFC, but I'm not sure how to expose any diffs in
tests. In theory, it should be slightly more efficient and possibly
more profitable to do the canonicalizations (which can increase the
undef elements in the mask) ahead of SimplifyDemandedVectorElts().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357272
91177308-0d34-0410-b5e6-
96231b3b80d8
Jordan Rupprecht [Fri, 29 Mar 2019 16:48:19 +0000 (16:48 +0000)]
[llvm-readobj] Add some generic notes (e.g. NT_VERSION)
Summary: Support reading notes that don't have a standard note name.
Reviewers: MaskRay
Reviewed By: MaskRay
Subscribers: llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D59969
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357271
91177308-0d34-0410-b5e6-
96231b3b80d8
Jordan Rupprecht [Fri, 29 Mar 2019 16:43:13 +0000 (16:43 +0000)]
[llvm-readelf] Allow prefix flags for -p and -x
Summary: This allows syntax like `llvm-readelf -p.data1 -x.data2`.
Reviewers: jhenderson
Reviewed By: jhenderson
Subscribers: llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D59965
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357270
91177308-0d34-0410-b5e6-
96231b3b80d8
Simon Pilgrim [Fri, 29 Mar 2019 15:28:25 +0000 (15:28 +0000)]
[SLP] Add support for commutative icmp/fcmp predicates
For the cases where the icmp/fcmp predicate is commutative, use reorderInputsAccordingToOpcode to collect and commute the operands.
This requires a helper to recognise commutativity in both general Instruction and CmpInstr types - the CmpInst::isCommutative doesn't overload the Instruction::isCommutative method for reasons I'm not clear on (maybe because its based on predicate not opcode?!?).
Differential Revision: https://reviews.llvm.org/D59992
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357266
91177308-0d34-0410-b5e6-
96231b3b80d8
Fangrui Song [Fri, 29 Mar 2019 15:27:58 +0000 (15:27 +0000)]
[llvm-objcopy] Fix case style of LayoutSegments. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357265
91177308-0d34-0410-b5e6-
96231b3b80d8
Simon Atanasyan [Fri, 29 Mar 2019 15:15:22 +0000 (15:15 +0000)]
[mips] Fix lowering a signed immediate for *.d MSA instructions
The `lowerMSASplatImm` function zero-extends `i32` immediates while
building constant. If target type is `i64`, negative immediate loses
the sign. As a result, for example `__builtin_msa_ldi_d(-1)` lowered
to series of instruction loads incorrect value 0xffffffff to the `$w0`
register instead of single `ldi.d $w0, -1` instruction.
The fix zero-extends unsigned immediates and signed-extend signed
immediates.
Differential Revision: http://reviews.llvm.org/D59884
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357264
91177308-0d34-0410-b5e6-
96231b3b80d8
Roman Lebedev [Fri, 29 Mar 2019 14:58:01 +0000 (14:58 +0000)]
[NFC][llvm-exegesis] Also promote getSchedClassPoint() into ResolvedSchedClass.
Summary:
It doesn't need anything from Analysis::SchedClassCluster class,
and takes ResolvedSchedClass as param, so this seems rather fitting.
Reviewers: courbet, gchatelet
Reviewed By: courbet
Subscribers: tschuett, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D59994
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357263
91177308-0d34-0410-b5e6-
96231b3b80d8
Dmitry Preobrazhensky [Fri, 29 Mar 2019 14:50:20 +0000 (14:50 +0000)]
[AMDGPU][MC] Corrected conversion rules for inlinable constants to match rules for literals
See bug 40806: https://bugs.llvm.org/show_bug.cgi?id=40806
Reviewers: artem.tamazov, arsenm
Differential Revision: https://reviews.llvm.org/D59786
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357262
91177308-0d34-0410-b5e6-
96231b3b80d8
Nico Weber [Fri, 29 Mar 2019 14:31:28 +0000 (14:31 +0000)]
gn build: Merge r357248
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357261
91177308-0d34-0410-b5e6-
96231b3b80d8
Nico Weber [Fri, 29 Mar 2019 14:30:01 +0000 (14:30 +0000)]
gn build: Merge r357259
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357260
91177308-0d34-0410-b5e6-
96231b3b80d8
Roman Lebedev [Fri, 29 Mar 2019 14:24:27 +0000 (14:24 +0000)]
[NFC][llvm-exegesis] Refactor ResolvedSchedClass & friends
Summary:
`ResolvedSchedClass` will need to be used outside of `Analysis`
(before `InstructionBenchmarkClustering` even), therefore promote
it into a non-private top-level class, and while there also
move all of the functions that are only called by `ResolvedSchedClass`
into that same new file.
Reviewers: courbet, gchatelet
Reviewed By: courbet
Subscribers: mgorny, tschuett, mgrang, jdoerfert, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D59993
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357259
91177308-0d34-0410-b5e6-
96231b3b80d8
Sanjay Patel [Fri, 29 Mar 2019 14:20:38 +0000 (14:20 +0000)]
[DAGCombiner] simplify shuffle of shuffle
After investigating the examples from D59777 targeting an SSE4.1 machine,
it looks like a very different problem due to how we map illegal types (256-bit in these cases).
We're missing a shuffle simplification that maps elements of a vector back to a shuffled operand.
We have a more general version of this transform in DAGCombiner::visitVECTOR_SHUFFLE(), but that
generality means it is limited to patterns with a one-use constraint, and the examples here have
2 uses. We don't need any uses or legality limitations for a simplification (no new value is
created).
It looks like we miss this pattern in IR too.
In one of the zext examples here, we have shuffle masks like this:
Shuf0 = vector_shuffle<0,u,3,7,0,u,3,7>
Shuf = vector_shuffle<4,u,6,7,u,u,u,u>
...so that's moving the high half of the 1st vector into the low half. But the high half of the
1st vector is already identical to the low half.
Differential Revision: https://reviews.llvm.org/D59961
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357258
91177308-0d34-0410-b5e6-
96231b3b80d8
Florian Hahn [Fri, 29 Mar 2019 14:10:24 +0000 (14:10 +0000)]
Recommit "[DSE] Preserve basic block ordering using OrderedBasicBlock."
Updated to use DenseMap::insert instead of [] operator for insertion, to
avoid a crash caused by epoch checks.
This reverts commit
2b85de438326f9d27bc96dc934ec98b98abdb337.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357257
91177308-0d34-0410-b5e6-
96231b3b80d8
Nirav Dave [Fri, 29 Mar 2019 14:09:47 +0000 (14:09 +0000)]
[DAGCombine] Improve Lifetime node chains.
Improve both start and end lifetime nodes chain dependencies.
Reviewers: courbet
Reviewed By: courbet
Subscribers: hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D59795
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357256
91177308-0d34-0410-b5e6-
96231b3b80d8
Sanjay Patel [Fri, 29 Mar 2019 13:49:08 +0000 (13:49 +0000)]
[DAGCombiner] fold sext into decrement
This is a sibling to rL357178 that I noticed we'd hit if we chose
an alternate transform in D59818.
%z = zext i8 %x to i32
%dec = add i32 %z, -1
%r = sext i32 %dec to i64
=>
%z2 = zext i8 %x to i64
%r = add i64 %z2, -1
https://rise4fun.com/Alive/kPP
The x86 vector diffs show a slight regression, so there's a chance
that we should limit this and the previous transform to scalars.
But given that we allowed vectors before, I'm matching that behavior
here. We should change both transforms together if that's the right
thing to do.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357254
91177308-0d34-0410-b5e6-
96231b3b80d8
Hans Wennborg [Fri, 29 Mar 2019 13:40:05 +0000 (13:40 +0000)]
Switch lowering: exploit unreachable fall-through when lowering case range cluster
In the example below, we would previously emit two range checks, one for cases
1--3 and one for 4--6. This patch makes us exploit the fact that the
fall-through is unreachable and only one range check is necessary.
switch i32 %i, label %default [
i32 1, label %bb1
i32 2, label %bb1
i32 3, label %bb1
i32 4, label %bb2
i32 5, label %bb2
i32 6, label %bb2
]
default: unreachable
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357252
91177308-0d34-0410-b5e6-
96231b3b80d8
Sanjay Patel [Fri, 29 Mar 2019 13:34:48 +0000 (13:34 +0000)]
[x86] add tests for decrement+sext; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357251
91177308-0d34-0410-b5e6-
96231b3b80d8
Dmitry Preobrazhensky [Fri, 29 Mar 2019 12:16:04 +0000 (12:16 +0000)]
[AMDGPU][MC] Corrected handling of tied src for atomic return MUBUF opcodes
See bug 40917: https://bugs.llvm.org/show_bug.cgi?id=40917
Reviewers: artem.tamazov, arsenm
Differential Revision: https://reviews.llvm.org/D59878
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357249
91177308-0d34-0410-b5e6-
96231b3b80d8
Andrea Di Biagio [Fri, 29 Mar 2019 12:15:37 +0000 (12:15 +0000)]
[MCA] Add an experimental MicroOpQueue stage.
This patch adds an experimental stage named MicroOpQueueStage.
MicroOpQueueStage can be used to simulate a hardware micro-op queue (basically,
a decoupling queue between 'decode' and 'dispatch'). Users can specify a queue
size, as well as a optional MaxIPC (which - in the absence of a "Decoders" stage
- can be used to simulate a different throughput from the decoders).
This stage is added to the default pipeline between the EntryStage and the
DispatchStage only if PipelineOption::MicroOpQueue is different than zero. By
default, llvm-mca sets PipelineOption::MicroOpQueue to the value of hidden flag
-micro-op-queue-size.
Throughput from the decoder can be simulated via another hidden flag named
-decoder-throughput. That flag allows us to quickly experiment with different
frontend throughputs. For targets that declare a loop buffer, flag
-decoder-throughput allows users to do multiple runs, each time simulating a
different throughput from the decoders.
This stage can/will be extended in future. For example, we could add a "buffer
full" event to notify bottlenecks caused by backpressure. flag
-decoder-throughput would probably go away if in future we delegate to another
stage (DecoderStage?) the simulation of a (potentially variable) throughput from
the decoders. For now, flag -decoder-throughput is "good enough" to run some
simple experiments.
Differential Revision: https://reviews.llvm.org/D59928
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357248
91177308-0d34-0410-b5e6-
96231b3b80d8
Konstantin Zhuravlyov [Fri, 29 Mar 2019 12:04:18 +0000 (12:04 +0000)]
AMDGPU: Make sram-ecc off by default for Vega20
Differential Revision: https://reviews.llvm.org/D59718
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357247
91177308-0d34-0410-b5e6-
96231b3b80d8
James Henderson [Fri, 29 Mar 2019 11:47:19 +0000 (11:47 +0000)]
[llvm-readelf]Merge dynamic and static relocation printing to avoid code duplication
The majority of the printRelocation and printDynamicRelocation functions
were identical. This patch factors this all out into a new function.
There are a couple of minor differences to do with printing of symbols
without names, but I think these are harmless, and in some cases a small
improvement.
Reviewed by: grimar, rupprecht, Higuoxing
Differential Revision: https://reviews.llvm.org/D59823
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357246
91177308-0d34-0410-b5e6-
96231b3b80d8
Roman Lebedev [Fri, 29 Mar 2019 11:36:08 +0000 (11:36 +0000)]
[NFC][llvm-exegesis] Refactor Analysis::SchedClassCluster::measurementsMatch()
Summary:
The diff looks scary but it really isn't:
1. I moved the check for the number of measurements into `SchedClassClusterCentroid::validate()`
2. While there, added a check that we can only have a single inverse throughput measurement. I missed that when adding it initially.
3. In `Analysis::SchedClassCluster::measurementsMatch()` is called with the current LLVM values from schedule class and the values from Centroid.
3.1. The values from centroid we can already get from `SchedClassClusterCentroid::getAsPoint()`.
This isn't 100% a NFC, because previously for inverse throughput we used `min()`. I have asked whether i have done that correctly in
https://reviews.llvm.org/D57647?id=184939#inline-510384 but did not hear back. I think `avg()` should be used too, thus it is a fix.
3.2. Finally, refactor the computation of the LLVM-specified values into `Analysis::SchedClassCluster::getSchedClassPoint()`
I will need that function for [[ https://bugs.llvm.org/show_bug.cgi?id=41275 | PR41275 ]]
Reviewers: courbet, gchatelet
Reviewed By: courbet
Subscribers: tschuett, jdoerfert, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D59951
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357245
91177308-0d34-0410-b5e6-
96231b3b80d8
Simon Pilgrim [Fri, 29 Mar 2019 11:25:58 +0000 (11:25 +0000)]
[X86] Add X86TargetLowering::isCommutativeBinOp override.
We currently just have test coverage for PMULUDQ - will add more in the future.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357244
91177308-0d34-0410-b5e6-
96231b3b80d8
Simon Pilgrim [Fri, 29 Mar 2019 10:41:00 +0000 (10:41 +0000)]
[SLP] Add support for swapping icmp/fcmp predicates to permit vectorization
We should be able to match elements with the swapped predicate as well - as long as we commute the source operands.
Differential Revision: https://reviews.llvm.org/D59956
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357243
91177308-0d34-0410-b5e6-
96231b3b80d8
Kang Zhang [Fri, 29 Mar 2019 08:45:24 +0000 (08:45 +0000)]
[PowerPC] Add the support for __builtin_setrnd()
Summary:
PowerPC64/PowerPC64le supports the builtin function __builtin_setrnd to set the floating point rounding mode. This function will use the least significant two bits of integer argument to set the floating point rounding mode.
double __builtin_setrnd(int mode);
The effective values for mode are:
0 - round to nearest
1 - round to zero
2 - round to +infinity
3 - round to -infinity
Note that the mode argument will modulo 4, so if the int argument is greater than 3, it will only use the least significant two bits of the mode. Namely, builtin_setrnd(102)) is equal to builtin_setrnd(2).
Reviewed By: jsji
Differential Revision: https://reviews.llvm.org/D59405
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357241
91177308-0d34-0410-b5e6-
96231b3b80d8
Clement Courbet [Fri, 29 Mar 2019 08:33:05 +0000 (08:33 +0000)]
[ScheduleDAG] Move `Topo` and `addEdge` to base class.
Some DAG mutations can only be applied to `ScheduleDAGMI`, and have to
internally cast a `ScheduleDAGInstrs` to `ScheduleDAGMI`.
There is nothing actually specific to `ScheduleDAGMI` in `Topo`.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357239
91177308-0d34-0410-b5e6-
96231b3b80d8
Fangrui Song [Fri, 29 Mar 2019 08:08:20 +0000 (08:08 +0000)]
[llvm-objcopy] Delete two redundant reinterpret_cast. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357238
91177308-0d34-0410-b5e6-
96231b3b80d8
Jim Lin [Fri, 29 Mar 2019 05:05:21 +0000 (05:05 +0000)]
Test commit. Fix typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357237
91177308-0d34-0410-b5e6-
96231b3b80d8
Matt Arsenault [Fri, 29 Mar 2019 03:54:56 +0000 (03:54 +0000)]
AMDGPU/GlobalISel: Insert waterfall loop for vector indexing
The register index can only really be an SGPR. Lie that a VGPR index
is legal, and then rewrite the instruction in a waterfall loop to
handle the index.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357235
91177308-0d34-0410-b5e6-
96231b3b80d8
Zi Xuan Wu [Fri, 29 Mar 2019 03:08:39 +0000 (03:08 +0000)]
[PowerPC] Strength reduction of multiply by a constant by shift and add/sub in place
A shift and add/sub sequence combination is faster in place of a multiply by constant.
Because the cycle or latency of multiply is not huge, we only consider such following
worthy patterns.
```
(mul x, 2^N + 1) => (add (shl x, N), x)
(mul x, -(2^N + 1)) => -(add (shl x, N), x)
(mul x, 2^N - 1) => (sub (shl x, N), x)
(mul x, -(2^N - 1)) => (sub x, (shl x, N))
```
And the cycles or latency is subtarget-dependent so that we need consider the
subtarget to determine to do or not do such transformation.
Also data type is considered for different cycles or latency to do multiply.
Differential Revision: https://reviews.llvm.org/D58950
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357233
91177308-0d34-0410-b5e6-
96231b3b80d8
Nico Weber [Fri, 29 Mar 2019 02:49:13 +0000 (02:49 +0000)]
gn build: Add check-clang-tools to run clang-tools-extra lit tests
Only runs the clang-tools-extra lit tests; not yet the unit tests.
Add a build file for clangd-indexer too, since it's needed for
the tests.
Differential Revision: https://reviews.llvm.org/D59955
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357232
91177308-0d34-0410-b5e6-
96231b3b80d8
Xing GUO [Fri, 29 Mar 2019 01:26:36 +0000 (01:26 +0000)]
[llvm-readobj] Change variable names to match LLVM-style. NFC.
Summary: This patch helps change variable names to match LLVM-style
Reviewers: jhenderson, Higuoxing
Reviewed By: Higuoxing
Subscribers: rupprecht, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D59931
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357230
91177308-0d34-0410-b5e6-
96231b3b80d8
Florian Hahn [Fri, 29 Mar 2019 00:22:26 +0000 (00:22 +0000)]
Revert Recommit "[DSE] Preserve basic block ordering using OrderedBasicBlock."
Another buildbot failure
http://lab.llvm.org:8011/builders/clang-cmake-x86_64-sde-avx512-linux/builds/20402
clang-9: /home/ssglocal/clang-cmake-x86_64-sde-avx512-linux/clang-cmake-x86_64-sde-avx512-linux/llvm/include/llvm/ADT/DenseMap.h:1228: llvm::DenseMapIterator<KeyT, ValueT, KeyInfoT, Bucket, IsConst>::value_type* llvm::DenseMapIterator<KeyT, ValueT, KeyInfoT, Bucket, IsConst>::operator->() const [with KeyT = const llvm::Instruction*; ValueT = unsigned int; KeyInfoT = llvm::DenseMapInfo<const llvm::Instruction*>; Bucket = llvm::detail::DenseMapPair<const llvm::Instruction*, unsigned int>; bool IsConst = false; llvm::DenseMapIterator<KeyT, ValueT, KeyInfoT, Bucket, IsConst>::pointer = llvm::detail::DenseMapPair<const llvm::Instruction*, unsigned int>*; llvm::DenseMapIterator<KeyT, ValueT, KeyInfoT, Bucket, IsConst>::value_type = llvm::detail::DenseMapPair<const llvm::Instruction*, unsigned int>]: Assertion `isHandleInSync() && "invalid iterator access!"' failed.
0. Program arguments: /home/ssglocal/clang-cmake-x86_64-sde-avx512-linux/clang-cmake-x86_64-sde-avx512-linux/stage1.install/bin/clang-9 -cc1 -triple x86_64-unknown-linux-gnu -emit-obj -disable-free -main-file-name ArchiveCommandLine.cpp -mrelocation-model static -mthread-model posix -fmath-errno -masm-verbose -mconstructor-aliases -munwind-tables -fuse-init-array -target-cpu skylake-avx512 -dwarf-column-info -debugger-tuning=gdb -momit-leaf-frame-pointer -coverage-notes-file /home/ssglocal/clang-cmake-x86_64-sde-avx512-linux/clang-cmake-x86_64-sde-avx512-linux/test/sandbox/build/MultiSource/Benchmarks/7zip/Output/ArchiveCommandLine.llvm.gcno -resource-dir /home/ssglocal/clang-cmake-x86_64-sde-avx512-linux/clang-cmake-x86_64-sde-avx512-linux/stage1.install/lib/clang/9.0.0 -I /home/ssglocal/clang-cmake-x86_64-sde-avx512-linux/clang-cmake-x86_64-sde-avx512-linux/test/sandbox/build/MultiSource/Benchmarks/7zip -I /home/ssglocal/clang-cmake-x86_64-sde-avx512-linux/clang-cmake-x86_64-sde-avx512-linux/test/test-suite/MultiSource/Benchmarks/7zip -I /home/ssglocal/clang-cmake-x86_64-sde-avx512-linux/clang-cmake-x86_64-sde-avx512-linux/test/test-suite/include -I ../../../include -D _GNU_SOURCE -D __STDC_LIMIT_MACROS -D NDEBUG -D BREAK_HANDLER -D UNICODE -D _UNICODE -I /home/ssglocal/clang-cmake-x86_64-sde-avx512-linux/clang-cmake-x86_64-sde-avx512-linux/test/test-suite/MultiSource/Benchmarks/7zip/C -I /home/ssglocal/clang-cmake-x86_64-sde-avx512-linux/clang-cmake-x86_64-sde-avx512-linux/test/test-suite/MultiSource/Benchmarks/7zip/CPP/myWindows -I /home/ssglocal/clang-cmake-x86_64-sde-avx512-linux/clang-cmake-x86_64-sde-avx512-linux/test/test-suite/MultiSource/Benchmarks/7zip/CPP/include_windows -I /home/ssglocal/clang-cmake-x86_64-sde-avx512-linux/clang-cmake-x86_64-sde-avx512-linux/test/test-suite/MultiSource/Benchmarks/7zip/CPP -I . -D _FILE_OFFSET_BITS=64 -D _LARGEFILE_SOURCE -D NDEBUG -D _REENTRANT -D ENV_UNIX -D _7ZIP_LARGE_PAGES -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/5.4.0/../../../../include/c++/5.4.0 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/5.4.0/../../../../include/x86_64-linux-gnu/c++/5.4.0 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/5.4.0/../../../../include/x86_64-linux-gnu/c++/5.4.0 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/5.4.0/../../../../include/c++/5.4.0/backward -internal-isystem /usr/local/include -internal-isystem /home/ssglocal/clang-cmake-x86_64-sde-avx512-linux/clang-cmake-x86_64-sde-avx512-linux/stage1.install/lib/clang/9.0.0/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -O3 -std=gnu++98 -fdeprecated-macro -fdebug-compilation-dir /home/ssglocal/clang-cmake-x86_64-sde-avx512-linux/clang-cmake-x86_64-sde-avx512-linux/test/sandbox/build/MultiSource/Benchmarks/7zip -ferror-limit 19 -fmessage-length 0 -pthread -fobjc-runtime=gcc -fcxx-exceptions -fexceptions -fdiagnostics-show-option -vectorize-loops -vectorize-slp -o Output/ArchiveCommandLine.llvm.o -x c++ /home/ssglocal/clang-cmake-x86_64-sde-avx512-linux/clang-cmake-x86_64-sde-avx512-linux/test/test-suite/MultiSource/Benchmarks/7zip/CPP/7zip/UI/Common/ArchiveCommandLine.cpp -faddrsig
This reverts r357222 (git commit
64cccfcc72c44ea62f441b782d2177a90912769a)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357227
91177308-0d34-0410-b5e6-
96231b3b80d8
Thomas Lively [Fri, 29 Mar 2019 00:14:01 +0000 (00:14 +0000)]
[WebAssembly] Merge used feature sets, update atomics linkage policy
Summary:
It does not currently make sense to use WebAssembly features in some functions
but not others, so this CL adds an IR pass that takes the union of all used
feature sets and applies it to each function in the module. This allows us to
prevent atomics from being lowered away if some function has opted in to using
them. When atomics is not enabled anywhere, we detect whether there exists any
atomic operations or thread local storage that would be stripped and disallow
linking with objects that contain atomics if and only if atomics or tls are
stripped. When atomics is enabled, mark it as used but do not require it of
other objects in the link. These changes allow libraries that do not use atomics
to be built once and linked into both single-threaded and multithreaded
binaries.
Reviewers: aheejin, sbc100, dschuff
Subscribers: jgravelle-google, hiraditya, sunfish, jfb, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D59625
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357226
91177308-0d34-0410-b5e6-
96231b3b80d8
Florian Hahn [Thu, 28 Mar 2019 23:11:00 +0000 (23:11 +0000)]
Recommit "[DSE] Preserve basic block ordering using OrderedBasicBlock."
Recommitting after addressing a buildbot failure.
This reverts commit
c87869ebea000dd6483de7c7451cb36c1d36f866.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357222
91177308-0d34-0410-b5e6-
96231b3b80d8
Jordan Rupprecht [Thu, 28 Mar 2019 23:08:06 +0000 (23:08 +0000)]
[llvm-readobj] Fix formatting of unknown note types
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357221
91177308-0d34-0410-b5e6-
96231b3b80d8
Puyan Lotfi [Thu, 28 Mar 2019 22:55:08 +0000 (22:55 +0000)]
[yaml2obj] Fixing opening empty yaml files.
Essentially echo "" | yaml2obj crashes. This patch attempts to trim whitespace
and determine if the yaml string in the file is empty or not. If the input is
empty then it will not properly print out an error message and return an error
code.
Differential Revision: https://reviews.llvm.org/D59964
A test/tools/yaml2obj/empty.yaml
M tools/yaml2obj/yaml2obj.cpp
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357219
91177308-0d34-0410-b5e6-
96231b3b80d8
Rumeet Dhindsa [Thu, 28 Mar 2019 22:26:51 +0000 (22:26 +0000)]
Update lit config for ld.lld command to match "ld\.lld" instead of trying to match respective regex. (It was able to work with ld-lld and ld1lld as well)
Differential Revision: https://reviews.llvm.org/D59962
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357218
91177308-0d34-0410-b5e6-
96231b3b80d8
Florian Hahn [Thu, 28 Mar 2019 22:17:29 +0000 (22:17 +0000)]
[LSR] Fix signed overflow in GenerateCrossUseConstantOffsets.
For the attached test case, unchecked addition of immediate starts and
ends overflows, as they can be arbitrary i64 constants.
Proof: https://rise4fun.com/Alive/Plqc
Reviewers: qcolombet, gilr, efriedma
Reviewed By: efriedma
Differential Revision: https://reviews.llvm.org/D59218
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357217
91177308-0d34-0410-b5e6-
96231b3b80d8
Yonghong Song [Thu, 28 Mar 2019 21:59:49 +0000 (21:59 +0000)]
[BPF] add proper multi-dimensional array support
For multi-dimensional array like below
int a[2][3];
the previous implementation generates BTF_KIND_ARRAY type
like below:
. element_type: int
. index_type: unsigned int
. number of elements: 6
This is not the best way to represent arrays, esp.,
when converting BTF back to headers and users will see
int a[6];
instead.
This patch generates proper support for multi-dimensional arrays.
For "int a[2][3]", the two BTF_KIND_ARRAY types will be
generated:
Type #n:
. element_type: int
. index_type: unsigned int
. number of elements: 3
Type #(n+1):
. element_type: #n
. index_type: unsigned int
. number of elements: 2
The linux kernel already supports such a multi-dimensional
array representation properly.
Signed-off-by: Yonghong Song <yhs@fb.com>
Differential Revision: https://reviews.llvm.org/D59943
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357215
91177308-0d34-0410-b5e6-
96231b3b80d8
Eli Friedman [Thu, 28 Mar 2019 21:12:28 +0000 (21:12 +0000)]
[MC] Fix floating-point literal lexing.
This patch has three related fixes to improve float literal lexing:
1. Make AsmLexer::LexDigit handle floats without a decimal point more
consistently.
2. Make AsmLexer::LexFloatLiteral print an error for floats which are
apparently missing an "e".
3. Make APFloat::convertFromString use binutils-compatible exponent
parsing.
Together, this fixes some cases where a float would be incorrectly
rejected, fixes some cases where the compiler would crash, and improves
diagnostics in some cases.
Patch by Brandon Jones.
Differential Revision: https://reviews.llvm.org/D57321
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357214
91177308-0d34-0410-b5e6-
96231b3b80d8
Craig Topper [Thu, 28 Mar 2019 20:52:22 +0000 (20:52 +0000)]
[SelectionDAGBuilder] Fix 80 column violation. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357213
91177308-0d34-0410-b5e6-
96231b3b80d8
Eli Friedman [Thu, 28 Mar 2019 20:44:50 +0000 (20:44 +0000)]
[InterleavedAccessPass] Don't increase the number of bytes loaded.
Even if the interleaving transform would otherwise be legal, we shouldn't
introduce an interleaved load that is wider than the original load: it might
have undefined behavior.
It might be possible to perform some sort of mask-narrowing transform in
some cases (using a narrower interleaved load, then extending the
results using shufflevectors). But I haven't tried to implement that,
at least for now.
Fixes https://bugs.llvm.org/show_bug.cgi?id=41245 .
Differential Revision: https://reviews.llvm.org/D59954
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357212
91177308-0d34-0410-b5e6-
96231b3b80d8
Florian Hahn [Thu, 28 Mar 2019 20:36:24 +0000 (20:36 +0000)]
Revert [DSE] Preserve basic block ordering using OrderedBasicBlock.
This reverts r357208 (git commit
c0bfd37d385c93711ef3a349599dba20e6b101ef)
This causes a buildbot failure: http://lab.llvm.org:8011/builders/clang-with-thin-lto-ubuntu/builds/16124
FAILED: lib/IR/CMakeFiles/LLVMCore.dir/IRBuilder.cpp.o
/home/buildslave/ps4-buildslave1/clang-with-thin-lto-ubuntu/install/stage2/bin/clang++ -DGTEST_HAS_RTTI=0 -D_DEBUG -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -Ilib/IR -I/home/buildslave/ps4-buildslave1/clang-with-thin-lto-ubuntu/llvm.src/lib/IR -Iinclude -I/home/buildslave/ps4-buildslave1/clang-with-thin-lto-ubuntu/llvm.src/include -fPIC -fvisibility-inlines-hidden -Werror -Werror=date-time -Werror=unguarded-availability-new -std=c++11 -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wstring-conversion -fdiagnostics-color -ffunction-sections -fdata-sections -flto=thin -O3 -UNDEBUG -fno-exceptions -fno-rtti -MD -MT lib/IR/CMakeFiles/LLVMCore.dir/IRBuilder.cpp.o -MF lib/IR/CMakeFiles/LLVMCore.dir/IRBuilder.cpp.o.d -o lib/IR/CMakeFiles/LLVMCore.dir/IRBuilder.cpp.o -c /home/buildslave/ps4-buildslave1/clang-with-thin-lto-ubuntu/llvm.src/lib/IR/IRBuilder.cpp
clang-9: /home/buildslave/ps4-buildslave1/clang-with-thin-lto-ubuntu/llvm.src/lib/Analysis/OrderedBasicBlock.cpp:38: bool llvm::OrderedBasicBlock::comesBefore(const llvm::Instruction *, const llvm::Instruction *): Assertion `!(LastInstFound == BB->end() && NextInstPos != 0) && "Instruction supposed to be in NumberedInsts"' failed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357211
91177308-0d34-0410-b5e6-
96231b3b80d8
Florian Hahn [Thu, 28 Mar 2019 20:02:33 +0000 (20:02 +0000)]
[DSE] Preserve basic block ordering using OrderedBasicBlock.
By extending OrderedBB to allow removing and replacing cached
instructions, we can preserve OrderedBBs in DSE easily. This eliminates
one source of quadratic compile time in DSE.
Fixes PR38829.
Reviewers: rnk, efriedma, hfinkel
Reviewed By: efriedma
Differential Revision: https://reviews.llvm.org/D59789
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357208
91177308-0d34-0410-b5e6-
96231b3b80d8
Florian Hahn [Thu, 28 Mar 2019 19:17:31 +0000 (19:17 +0000)]
[MemDepAnalysis] Allow caller to pass in an OrderedBasicBlock.
If the caller can preserve the OBB, we can avoid recomputing the order
for each getDependency call.
Reviewers: efriedma, rnk, hfinkel
Reviewed By: rnk
Differential Revision: https://reviews.llvm.org/D59788
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357206
91177308-0d34-0410-b5e6-
96231b3b80d8
Simon Pilgrim [Thu, 28 Mar 2019 19:13:38 +0000 (19:13 +0000)]
[SLP][X86] Add tests showing failure to commute icmp/fcmp by swapping predicate
By swapping icmp/fcmp predicates we can commute their operands to improve vectorization
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357204
91177308-0d34-0410-b5e6-
96231b3b80d8
Simon Pilgrim [Thu, 28 Mar 2019 19:03:53 +0000 (19:03 +0000)]
[SLP][X86] Add tests showing failure to commute icmp/fcmp operands
Some predicates are fully commutative - we should be able to easily commute their operands to improve vectorization
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357202
91177308-0d34-0410-b5e6-
96231b3b80d8
Adrian Prantl [Thu, 28 Mar 2019 18:34:34 +0000 (18:34 +0000)]
Temporarily revert "SafepointIRVerifier port to new Pass Manager"
to unbreak the modular bots and its follow-up commit.
This reverts commit https://reviews.llvm.org/D59825
because it introduced a
fatal error: cyclic dependency in module 'LLVM_intrinsic_gen': LLVM_intrinsic_gen -> LLVM_IR -> LLVM_intrinsic_gen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357201
91177308-0d34-0410-b5e6-
96231b3b80d8
Jordan Rupprecht [Thu, 28 Mar 2019 18:27:00 +0000 (18:27 +0000)]
[llvm-objcopy][NFC] Move ELF-specific logic into /ELF/ directory
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357199
91177308-0d34-0410-b5e6-
96231b3b80d8
Craig Topper [Thu, 28 Mar 2019 18:05:37 +0000 (18:05 +0000)]
[X86] Teach the isel optimization for (x << C1) op C2 to (x op (C2>>C1)) << C1 to consider cases where C2>>C1 can fit an unsigned 32-bit immediate
For 64-bit operations we should consider if the immediate can be made to fit
in an unsigned 32-bits immedate. For OR/XOR this allows us to load the immediate
with MOV32ri instead of movabsq. For AND this allows us to fold the immediate.
Differential Revision: https://reviews.llvm.org/D59867
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357196
91177308-0d34-0410-b5e6-
96231b3b80d8
Reid Kleckner [Thu, 28 Mar 2019 17:33:41 +0000 (17:33 +0000)]
Delay initialization of three static global maps, NFC
This avoids allocating a few KB of heap memory on startup, and instead
allocates these maps lazily. I noticed this while profiling LLD.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357192
91177308-0d34-0410-b5e6-
96231b3b80d8
Benjamin Kramer [Thu, 28 Mar 2019 17:18:42 +0000 (17:18 +0000)]
Make helper functions static. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357187
91177308-0d34-0410-b5e6-
96231b3b80d8
Petar Avramovic [Thu, 28 Mar 2019 16:58:12 +0000 (16:58 +0000)]
[MIPS GlobalISel] Select float constants
Select 32 and 64 bit float constants for MIPS32.
Differential Revision: https://reviews.llvm.org/D59933
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357183
91177308-0d34-0410-b5e6-
96231b3b80d8
Nico Weber [Thu, 28 Mar 2019 16:53:32 +0000 (16:53 +0000)]
gn build: Add some build files for clangd
Enough to build the clangd binaries, but this is still missing build
files for:
- fuzzer
- indexer
- index/dex/dexp
- benchmarks
- xpc
Differential Revision: https://reviews.llvm.org/D59899
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357182
91177308-0d34-0410-b5e6-
96231b3b80d8
Jordan Rupprecht [Thu, 28 Mar 2019 16:15:28 +0000 (16:15 +0000)]
Add "git llvm revert" and "git llvm svn-lookup" subcommands
Summary:
The current git-svnrevert script only works with git-svn repos (e.g. using "git svn find-rev" to find the commit to revert). This adds a similar implementation that works with the llvm git command handler.
Usage:
```
// Revert by svn id
$ git llvm revert r123456
// See what commands would be run instead of actually reverting
$ git llvm revert -n r123456
<full git revert + git commit commands>
// Git commit hash also fine
$ git llvm revert
abc123456
// For convenience, the git->svn method can be used directly:
$ git llvm svn-lookup
abc123456
r123456
// Push revert upstream (drop the -n when ready)
$ git llvm push -n
```
Regardless of how the command is invoked (with a svn revision or git hash), the message is:
```
Revert [LibFoo] Change Foo implementation
This reverts r123456 (git commit abc123)
```
Reviewers: jyknight, mehdi_amini, jlebar
Reviewed By: jlebar
Subscribers: llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D59837
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357180
91177308-0d34-0410-b5e6-
96231b3b80d8
Nirav Dave [Thu, 28 Mar 2019 15:53:01 +0000 (15:53 +0000)]
[DAG] Fix Lifetime Node ID hashing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357179
91177308-0d34-0410-b5e6-
96231b3b80d8
Sanjay Patel [Thu, 28 Mar 2019 15:46:02 +0000 (15:46 +0000)]
[DAGCombiner] fold sext into negation
As noted in D59818:
%z = zext i8 %x to i32
%neg = sub i32 0, %z
%r = sext i32 %neg to i64
=>
%z2 = zext i8 %x to i64
%r = sub i64 0, %z2
https://rise4fun.com/Alive/KzSR
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357178
91177308-0d34-0410-b5e6-
96231b3b80d8
Sanjay Patel [Thu, 28 Mar 2019 15:30:09 +0000 (15:30 +0000)]
[x86] add vector test for sext of negate; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357177
91177308-0d34-0410-b5e6-
96231b3b80d8
Scott Linder [Thu, 28 Mar 2019 15:08:52 +0000 (15:08 +0000)]
[AMDGPU] Clarify Code Object V2/V3 differences in AMDGPUUsage
Ensure Code Object V2 documentation is complete, but always contains a
warning and a link to the equivalent Code Object V3 documentation.
Explicitly indicate that any note records present in a code object that
are not documented must be considered deprecated and ignored.
Differential Revision: https://reviews.llvm.org/D59782
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357176
91177308-0d34-0410-b5e6-
96231b3b80d8
Michael Platings [Thu, 28 Mar 2019 14:42:21 +0000 (14:42 +0000)]
[Documentation] Proposal to change variable names
Differential Revision: https://reviews.llvm.org/D59251
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357174
91177308-0d34-0410-b5e6-
96231b3b80d8
Sanjay Patel [Thu, 28 Mar 2019 14:16:13 +0000 (14:16 +0000)]
[x86] avoid cmov in movmsk reduction
This is probably the least important of our movmsk problems, but I'm starting
at the bottom to reduce distractions.
We were creating a select_cc which bypasses the select and bitmask codegen
optimizations that we have now. If we produce a compare+negate instead, we
allow things like neg/sbb carry bit hacks, and in all cases we avoid a cmov.
There's no partial register update danger in these sequences because we always
produce the zero-register xor ahead of the 'set' if needed.
There seems to be a missing fold for sext of a bool bit here:
negl %ecx
movslq %ecx, %rax
...but that's an independent transform.
Differential Revision: https://reviews.llvm.org/D59818
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357172
91177308-0d34-0410-b5e6-
96231b3b80d8
Clement Courbet [Thu, 28 Mar 2019 14:12:46 +0000 (14:12 +0000)]
[X86MacroFusion] Handle branch fusion (AMD CPUs).
Summary:
This adds a BranchFusion feature to replace the usage of the MacroFusion
for AMD CPUs.
See D59688 for context.
Reviewers: andreadb, lebedev.ri
Subscribers: hiraditya, jdoerfert, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D59872
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357171
91177308-0d34-0410-b5e6-
96231b3b80d8
Matt Arsenault [Thu, 28 Mar 2019 14:01:39 +0000 (14:01 +0000)]
AMDGPU: Make exec mask optimzations more resistant to block splits
Also improve the check for SALU instructions to also ignore
implicit_def and other fake instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357170
91177308-0d34-0410-b5e6-
96231b3b80d8
Roman Lebedev [Thu, 28 Mar 2019 13:40:34 +0000 (13:40 +0000)]
[X86] AMD Piledriver (BdVer2): fine-tune some latencies
Based on llvm-exegesis measurements.
Now that llvm-exegesis is ~2 magnitudes faster, and is a bit smarter,
it is now possible to continue cleanup of the scheduler model.
With this, there are no more latency inconsistencies for the
opcodes that produce stable measurements, and only a few inconsistencies
for unstable measurements (MMX_* opcodes, opcodes that llvm-exegesis
measures by chaining - CMP, TEST, BT, SETcc, CVT, MOV, etc.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357169
91177308-0d34-0410-b5e6-
96231b3b80d8
Clement Courbet [Thu, 28 Mar 2019 13:38:58 +0000 (13:38 +0000)]
[NFC] Format InlineFeatureIgnoreList.
To avoid more spurious clang-format changes when adding features (D59872).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357168
91177308-0d34-0410-b5e6-
96231b3b80d8
Xing GUO [Thu, 28 Mar 2019 12:51:56 +0000 (12:51 +0000)]
- Addressed comments
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357166
91177308-0d34-0410-b5e6-
96231b3b80d8
Xing GUO [Thu, 28 Mar 2019 12:51:46 +0000 (12:51 +0000)]
- Addressed @jhenderson 's comments
- Format patch
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357165
91177308-0d34-0410-b5e6-
96231b3b80d8
Xing GUO [Thu, 28 Mar 2019 12:51:35 +0000 (12:51 +0000)]
[llvm-readobj] Add new helper function `getSymbolVersionByIndex()`
Summary: When implementing `GNU style` dumper for `.gnu.version` section, we should find symbol version name by `vs_index`.
Reviewers: jhenderson, rupprecht
Reviewed By: rupprecht
Subscribers: arphaman, rupprecht, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D59545
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357164
91177308-0d34-0410-b5e6-
96231b3b80d8
Simon Pilgrim [Thu, 28 Mar 2019 11:34:21 +0000 (11:34 +0000)]
[DAGCombiner] Fold truncate(build_vector(x,y)) -> build_vector(truncate(x),truncate(y))
If scalar truncates are free, attempt to pre-truncate build_vectors source operands.
Only attempt to do this before legalization as we often end up with truncations/extensions during build_vector lowering.
Differential Revision: https://reviews.llvm.org/D59654
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357161
91177308-0d34-0410-b5e6-
96231b3b80d8
Diana Picus [Thu, 28 Mar 2019 10:57:29 +0000 (10:57 +0000)]
[ARM GlobalISel] Run regbankselect test for Thumb. NFCI
This should just work, since ARM mode and Thumb2 mode are at the same
level of support now and should map the same to GPR and FPR.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357159
91177308-0d34-0410-b5e6-
96231b3b80d8
George Rimar [Thu, 28 Mar 2019 10:52:14 +0000 (10:52 +0000)]
[yaml2obj][obj2yaml] - Teach yaml2obj/obj2yaml tools about STB_GNU_UNIQUE symbols.
yaml2obj/obj2yaml does not support the symbols with STB_GNU_UNIQUE yet.
Currently, obj2yaml fails with llvm_unreachable when met such a symbol.
I faced it when investigated the https://bugs.llvm.org/show_bug.cgi?id=41196.
Differential revision: https://reviews.llvm.org/D59875
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357158
91177308-0d34-0410-b5e6-
96231b3b80d8
Pierre Gousseau [Thu, 28 Mar 2019 10:51:24 +0000 (10:51 +0000)]
[asan] Add options -asan-detect-invalid-pointer-cmp and -asan-detect-invalid-pointer-sub options.
This is in preparation to a driver patch to add gcc 8's -fsanitize=pointer-compare and -fsanitize=pointer-subtract.
Disabled by default as this is still an experimental feature.
Reviewed By: morehouse, vitalybuka
Differential Revision: https://reviews.llvm.org/D59220
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357157
91177308-0d34-0410-b5e6-
96231b3b80d8
Florian Hahn [Thu, 28 Mar 2019 10:37:12 +0000 (10:37 +0000)]
[VPlan] Determine Vector Width programmatically.
With this change, the VPlan native path is triggered with the directive:
#pragma clang loop vectorize(enable)
There is no need to specify the vectorize_width(N) clause.
Patch by Francesco Petrogalli <francesco.petrogalli@arm.com>
Differential Revision: https://reviews.llvm.org/D57598
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357156
91177308-0d34-0410-b5e6-
96231b3b80d8
Simon Pilgrim [Thu, 28 Mar 2019 10:25:13 +0000 (10:25 +0000)]
[X85][AVX] Add missing vXi16 broadcast fold patterns
Now that D59484 has landed its easier to add these.
Added missing AVX512BW v32i16 equivalents while I was at it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357155
91177308-0d34-0410-b5e6-
96231b3b80d8
Diana Picus [Thu, 28 Mar 2019 09:09:36 +0000 (09:09 +0000)]
[ARM GlobalISel] Fix G_STORE with s1
G_STORE for 1-bit values uses a STRBi12, which stores the whole byte.
Zero out the undefined bits before writing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357154
91177308-0d34-0410-b5e6-
96231b3b80d8
Diana Picus [Thu, 28 Mar 2019 09:09:27 +0000 (09:09 +0000)]
[ARM GlobalISel] Fix selection of G_SELECT
G_SELECT uses a 1-bit scalar for the condition, and is currently
implemented with a plain CMPri against 0. This means that values such as
0x1110 are interpreted as true, when instead the higher bits should be
treated as undefined and therefore ignored. Replace the CMPri with a
TSTri against 0x1, which performs an implicit AND, yielding the expected
result.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357153
91177308-0d34-0410-b5e6-
96231b3b80d8
Roman Lebedev [Thu, 28 Mar 2019 08:55:01 +0000 (08:55 +0000)]
[llvm-exegesis] Introduce a 'naive' clustering algorithm (PR40880)
Summary:
This is an alternative to D59539.
Let's suppose we have measured 4 different opcodes, and got: `0.5`, `1.0`, `1.5`, `2.0`.
Let's suppose we are using `-analysis-clustering-epsilon=0.5`.
By default now we will start processing the `0.5` point, find that `1.0` is it's neighbor, add them to a new cluster.
Then we will notice that `1.5` is a neighbor of `1.0` and add it to that same cluster.
Then we will notice that `2.0` is a neighbor of `1.5` and add it to that same cluster.
So all these points ended up in the same cluster.
This may or may not be a correct implementation of dbscan clustering algorithm.
But this is rather horribly broken for the reasons of comparing the clusters with the LLVM sched data.
Let's suppose all those opcodes are currently in the same sched cluster.
If i specify `-analysis-inconsistency-epsilon=0.5`, then no matter
the LLVM values this cluster will **never** match the LLVM values,
and thus this cluster will **always** be displayed as inconsistent.
The solution is obviously to split off some of these opcodes into different sched cluster.
But how do i do that? Out of 4 opcodes displayed in the inconsistency report,
which ones are the "bad ones"? Which ones are the most different from the checked-in data?
I'd need to go in to the `.yaml` and look it up manually.
The trivial solution is to, when creating clusters, don't use the full dbscan algorithm,
but instead "pick some unclustered point, pick all unclustered points that are it's neighbor,
put them all into a new cluster, repeat". And just so as it happens, we can arrive
at that algorithm by not performing the "add neighbors of a neighbor to the cluster" step.
But that won't work well once we teach analyze mode to operate in on-1D mode
(i.e. on more than a single measurement type at a time), because the clustering would
depend on the order of the measurements.
Instead, let's just create a single cluster per opcode, and put all the points of that opcode into said cluster.
And simultaneously check that every point in that cluster is a neighbor of every other point in the cluster,
and if they are not, the cluster (==opcode) is unstable.
This is //yet another// step to bring me closer to being able to continue cleanup of bdver2 sched model..
Fixes [[ https://bugs.llvm.org/show_bug.cgi?id=40880 | PR40880 ]].
Reviewers: courbet, gchatelet
Reviewed By: courbet
Subscribers: tschuett, jdoerfert, RKSimon, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D59820
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357152
91177308-0d34-0410-b5e6-
96231b3b80d8
Piotr Sobczak [Thu, 28 Mar 2019 07:06:26 +0000 (07:06 +0000)]
[SelectionDAG] Add 2 tests for selection across basic blocks
Summary:
Add tests for selection across basic block boundary:
* one test containing a buffer load, where part of the offset
computation is placed in the predecessor of the load
* similar test, but containing two buffer loads and shared
computations
Please note that the behaviour being tested will be updated in
a subsequent commit.
This commit was extracted from https://reviews.llvm.org/D59535.
Reviewers: RKSimon
Reviewed By: RKSimon
Subscribers: jvesely, nhaehnle, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D59690
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357149
91177308-0d34-0410-b5e6-
96231b3b80d8
Serguei Katkov [Thu, 28 Mar 2019 07:02:00 +0000 (07:02 +0000)]
SafepointIRVerifier port to new Pass Manager
Add missed include.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357148
91177308-0d34-0410-b5e6-
96231b3b80d8
Serguei Katkov [Thu, 28 Mar 2019 06:00:09 +0000 (06:00 +0000)]
SafepointIRVerifier port to new Pass Manager
Straightforward port of StatepointIRVerifier pass to new Pass Manager framework.
Reviewers: fedor.sergeev, reames
Reviewed By: fedor.sergeev
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D59825
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357147
91177308-0d34-0410-b5e6-
96231b3b80d8
Sam Clegg [Thu, 28 Mar 2019 02:07:28 +0000 (02:07 +0000)]
[WebAssembly] Rename wasm fixup kinds
These fixup kinds are not explicitly related to the code section. They
are there to signal how to apply the fixup.
Also, a couple of other minor wasm cleanups.
Differential Revision: https://reviews.llvm.org/D59908
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357145
91177308-0d34-0410-b5e6-
96231b3b80d8
Eric Christopher [Thu, 28 Mar 2019 01:56:16 +0000 (01:56 +0000)]
Add reproduction instructions to llvm-objdump's embedded source test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357142
91177308-0d34-0410-b5e6-
96231b3b80d8
Eric Christopher [Thu, 28 Mar 2019 01:12:13 +0000 (01:12 +0000)]
Fix typoed variable name.
NFCI.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357138
91177308-0d34-0410-b5e6-
96231b3b80d8