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Ahmed Bougacha [Fri, 10 Feb 2017 04:00:17 +0000 (04:00 +0000)]
[GlobalISel] Return an Expected<RuleMatcher> for each SDAG pattern. NFC.
Instead of emitting the matcher code directly, return the rule matcher
and the skip reason as an Expected<RuleMatcher>.
This will let us record all matchers and process them before emission.
It's a somewhat unconventional use of Error, but it's nicer than, say,
std::pair, because of the bool conversions.
Differential Revision: https://reviews.llvm.org/D29743
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294706
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Matthias Braun [Fri, 10 Feb 2017 03:48:50 +0000 (03:48 +0000)]
SubtargetFeature: Increase MAX_SUBTARGET_FEATURES
The ARM target is getting really close to the current limit of 128
subtarget features already breaking out of tree enhancements. Increase
the size once more to 196.
I filed http://llvm.org/PR31926 to request a proper solution.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294704
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Eric Christopher [Fri, 10 Feb 2017 03:32:21 +0000 (03:32 +0000)]
For X86-64 linux and PPC64 linux align int128 to 16 bytes.
For other platforms we should find out what they need and likely
make the same change, however, a smaller additional change is easier
for platforms we know have it specified in the ABI. As part of this
rewrite some of the handling in the backends for data layout and update
a bunch of testcases.
Based on a patch by Simonas Kazlauskas!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294702
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Quentin Colombet [Fri, 10 Feb 2017 02:43:09 +0000 (02:43 +0000)]
[TableGen][AsmWriterEmitter] Use a deterministic order to sort InstrAliases
Inside an alias group, when ordering instruction aliases, we rely
on the priority field to sort them.
When the priority is not set or more generally when there is a tie between
two aliases, we used to rely on the lexicographic order. However, this
order can change for the anonymous records when more instruction, intrinsic,
etc. are inserted.
For instance, given two anonymous records r1 and r2 with respective name
A_999 and A_1000, their lexicography order will be r2 then r1. Now, if
an instruction is added before them, their name will become respectively
A_1000 and A_1001, thus the lexicography order will be r1 then r2, i.e.,
it changed.
If that happens in an alias group, the assembly output would prefer a
different alias for no apparent good reasons.
A way to fix that is to use proper priority for all aliases, but we
can also make the tie breaker comparison smarter and use a deterministic
ordering. This is what this patch does.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294695
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Matt Arsenault [Fri, 10 Feb 2017 02:42:31 +0000 (02:42 +0000)]
AMDGPU: Fix trailing whitespace
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294694
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Wei Ding [Fri, 10 Feb 2017 02:15:29 +0000 (02:15 +0000)]
AMDGPU : Add trap handler support.
Differential Revision: http://reviews.llvm.org/D26010
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294692
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Stanislav Mekhanoshin [Fri, 10 Feb 2017 02:07:58 +0000 (02:07 +0000)]
[AMDGPU] Override PSet for M0
This change returns empty PSet list for M0 register. Otherwise its
PSet as defined by tablegen is SReg_32. This results in incorrect
register pressure calculation every time an instruction uses M0.
Such uses count as SReg_32 PSet and inadequately increase pressure
on SGPRs.
Differential Revision: https://reviews.llvm.org/D29798
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294691
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Eric Fiselier [Fri, 10 Feb 2017 01:59:20 +0000 (01:59 +0000)]
[CMake] Fix pthread handling for out-of-tree builds
LLVM defines `PTHREAD_LIB` which is used by AddLLVM.cmake and various projects
to correctly link the threading library when needed. Unfortunately
`PTHREAD_LIB` is defined by LLVM's `config-ix.cmake` file which isn't installed
and therefore can't be used when configuring out-of-tree builds. This causes
such builds to fail since `pthread` isn't being correctly linked.
This patch attempts to fix that problem by renaming and exporting
`LLVM_PTHREAD_LIB` as part of`LLVMConfig.cmake`. I renamed `PTHREAD_LIB`
because It seemed likely to cause collisions with downstream users of
`LLVMConfig.cmake`.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294690
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Marcos Pividori [Fri, 10 Feb 2017 01:40:28 +0000 (01:40 +0000)]
[libFuzzer] Export external functions on tests.
We need to export external functions so they are found when calling
GetProcAddress() on Windows. But we can't use `__declspec(dllexport)` because
we want the targets to be completely independent from the fuzz engines and don't
depend on other header files. Also, we don't want to include platform specific
code managed with conditional macros.
So, the solution is to add the exported symbols with linker flags in cmake.
Differential revision: https://reviews.llvm.org/D29752
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294688
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Marcos Pividori [Fri, 10 Feb 2017 01:35:46 +0000 (01:35 +0000)]
[libFuzzer] Use dynamic loading for External Functions on Windows.
Replace weak aliases with dynamic loading.
Weak aliases were generating some problems when linking for MT on Windows. For
MT, compiler-rt's libraries are statically linked to the main executable the
same than libFuzzer, so if we use weak aliases, we are providing two different
default implementations for the same weak function and the linker fails.
In this diff I re implement ExternalFunctions() using dynamic loading, so it
works in both cases (MD and MT). Also, dynamic loading is simpler, since we are
not defining any auxiliary external function, and we don't need to deal with
weak aliases.
This is equivalent to the implementation using dlsym(RTLD_DEFAULT, FnName) for
Posix.
Differential revision: https://reviews.llvm.org/D29751
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294687
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David L. Jones [Fri, 10 Feb 2017 01:35:31 +0000 (01:35 +0000)]
Update test/CodeGen/X86/sse-align-10.ll to use FileCheck instead of grep
Patch by Jorge Gorbe (lethalantidote).
Differential Revision: https://reviews.llvm.org/D29797
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294686
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Eugene Zelenko [Fri, 10 Feb 2017 01:33:54 +0000 (01:33 +0000)]
[MC] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294685
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Michael J. Spencer [Fri, 10 Feb 2017 00:44:08 +0000 (00:44 +0000)]
[LoadCombine] Change test to not use instcombine.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294682
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Dan Gohman [Fri, 10 Feb 2017 00:14:42 +0000 (00:14 +0000)]
[WebAssembly] Pass an MCContext to WebAssemblyMCCodeEmitter. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294679
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Matthias Braun [Fri, 10 Feb 2017 00:09:20 +0000 (00:09 +0000)]
Fix syntax error
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294678
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Matthias Braun [Fri, 10 Feb 2017 00:06:44 +0000 (00:06 +0000)]
ARMSubtarget.h: Change to one line per enum element; NFC
Change syntax to have enum elements sorted alphabetically and one per
line as that is more merge/cherry pick friendly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294677
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Dan Gohman [Fri, 10 Feb 2017 00:02:58 +0000 (00:02 +0000)]
[Support] Extend SLEB128 encoding support.
Add support for padded SLEB128 values, and support for writing SLEB128
values to buffers rather than to ostreams, similar to the existing
ULEB128 support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294675
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Eric Christopher [Fri, 10 Feb 2017 00:02:09 +0000 (00:02 +0000)]
Add an additional set of braces to deal with subobject initialization.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294674
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Matthias Braun [Fri, 10 Feb 2017 00:00:22 +0000 (00:00 +0000)]
docs/conf.py: Suppress sphinx highlighting failure warnings
The pygments syntax highlighting package used by sphinx fails to parse
newer LLVM constructs or valid (at least to me) gas constructs like
`.secrel32 _function_name + 0`.
Disable this particular warning so the build doesn't abort as fixing
pygments doesn't seem a workable option here.
Differential Revision: https://reviews.llvm.org/D29794
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294672
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Chandler Carruth [Thu, 9 Feb 2017 23:54:57 +0000 (23:54 +0000)]
[PM] Add Argument Promotion to the pass pipeline.
This needs explicit requires of the optimization remark emission before
loop pass pipelines containing LICM as we no longer get it from the
inliner -- Argument Promotion may invalidate it. Technically the inliner
could also have broken this, but it never came up in testing.
Differential Revision: https://reviews.llvm.org/D29595
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294670
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Davide Italiano [Thu, 9 Feb 2017 23:48:10 +0000 (23:48 +0000)]
[NewGVN] Fix test so that it doesn't rely on InstCombine anymore.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294668
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Chandler Carruth [Thu, 9 Feb 2017 23:46:27 +0000 (23:46 +0000)]
[PM] Port ArgumentPromotion to the new pass manager.
Now that the call graph supports efficient replacement of a function and
spurious reference edges, we can port ArgumentPromotion to the new pass
manager very easily.
The old PM-specific bits are sunk into callbacks that the new PM simply
doesn't use. Unlike the old PM, the new PM simply does argument
promotion and afterward does the update to LCG reflecting the promoted
function.
Differential Revision: https://reviews.llvm.org/D29580
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294667
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Peter Collingbourne [Thu, 9 Feb 2017 23:46:26 +0000 (23:46 +0000)]
WholeProgramDevirt: Check that VCP candidate functions are defined before evaluating them.
This was crashing before.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294666
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Matthias Braun [Thu, 9 Feb 2017 23:43:28 +0000 (23:43 +0000)]
LowerMemIntrinsics: Fix include guard
I hope this fixes the clang-stage2-cmake-modules jenkins build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294665
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Chandler Carruth [Thu, 9 Feb 2017 23:30:14 +0000 (23:30 +0000)]
[PM/LCG] Teach LCG to support spurious reference edges.
Somewhat amazingly, this only requires teaching it to clean them up when
deleting a dead function from the graph. And we already have exactly the
necessary data structures to do that in the parent RefSCCs.
This allows ArgPromote to work in a much simpler way be merely letting
reference edges linger in the graph after the causing IR is deleted. We
will clean up these edges when we run any function pass over the IR, but
don't remove them eagerly.
This avoids all of the quadratic update issues both in the current pass
manager and in my previous attempt with the new pass manager.
Differential Revision: https://reviews.llvm.org/D29579
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294663
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George Burgess IV [Thu, 9 Feb 2017 23:29:14 +0000 (23:29 +0000)]
[ARM] Add support for armv7ve triple in llvm (PR31358).
Gcc supports target armv7ve which is armv7-a with virtualization
extensions. This change adds support for this in llvm for gcc
compatibility.
Also remove redundant FeatureHWDiv, FeatureHWDivARM for a few models as
this is specified automatically by FeatureVirtualization.
Patch by Manoj Gupta.
Differential Revision: https://reviews.llvm.org/D29472
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294661
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Chandler Carruth [Thu, 9 Feb 2017 23:24:13 +0000 (23:24 +0000)]
[PM/LCG] Teach the LazyCallGraph how to replace a function without
disturbing the graph or having to update edges.
This is motivated by porting argument promotion to the new pass manager.
Because of how LLVM IR Function objects work, in order to change their
signature a new object needs to be created. This is efficient and
straight forward in the IR but previously was very hard to implement in
LCG. We could easily replace the function a node in the graph
represents. The challenging part is how to handle updating the edges in
the graph.
LCG previously used an edge to a raw function to represent a node that
had not yet been scanned for calls and references. This was the core
of its laziness. However, that model causes this kind of update to be
very hard:
1) The keys to lookup an edge need to be `Function*`s that would all
need to be updated when we update the node.
2) There will be some unknown number of edges that haven't transitioned
from `Function*` edges to `Node*` edges.
All of this complexity isn't necessary. Instead, we can always build
a node around any function, always pointing edges at it and always using
it as the key to lookup an edge. To maintain the laziness, we need to
sink the *edges* of a node into a secondary object and explicitly model
transitioning a node from empty to populated by scanning the function.
This design seems much cleaner in a number of ways, but importantly
there is now exactly *one* place where the `Function*` has to be
updated!
Some other cleanups that fall out of this include having something to
model the *entry* edges more accurately. Rather than hand rolling parts
of the node in the graph itself, we have an explicit `EdgeSequence`
object that gives us exactly the functionality needed. We also have
a consistent place to define the edge iterators and can use them for
both the entry edges and the internal edges of the graph.
The API used to model the separation between a node and its edges is
intentionally very thin as most clients are expected to deal with nodes
that have populated edges. We model this exactly as an optional does
with an additional method to populate the edges when that is
a reasonable thing for a client to do. This is based on API design
suggestions from Richard Smith and David Blaikie, credit goes to them
for helping pick how to model this without it being either too explicit
or too implicit.
The patch is somewhat noisy due to shifting around iterator types and
new syntax for walking the edges of a node, but most of the
functionality change is in the `Edge`, `EdgeSequence`, and `Node` types.
Differential Revision: https://reviews.llvm.org/D29577
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294653
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Dan Gohman [Thu, 9 Feb 2017 23:19:03 +0000 (23:19 +0000)]
[WebAssembly] Refactor void return peephole using MaybeRewriteToFallthrough. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294652
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Sanjay Patel [Thu, 9 Feb 2017 23:13:04 +0000 (23:13 +0000)]
[InstCombine] allow (X * C2) << C1 --> X * (C2 << C1) for vectors
This fold already existed for vectors but only when 'C1' was a splat
constant (but 'C2' could be any constant).
There were no tests for any vector constants, so I'm adding a test
that shows non-splat constants for both operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294650
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Peter Collingbourne [Thu, 9 Feb 2017 23:11:52 +0000 (23:11 +0000)]
De-duplicate some code for creating an AARGetter suitable for the legacy PM.
I'm about to use this in a couple more places.
Differential Revision: https://reviews.llvm.org/D29793
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294648
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Hans Wennborg [Thu, 9 Feb 2017 23:03:34 +0000 (23:03 +0000)]
Don't try to link to the 4.0 release notes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294647
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Matthias Braun [Thu, 9 Feb 2017 23:03:22 +0000 (23:03 +0000)]
lit.rst: Fix sphinx complaint about multiple option definitions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294646
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Jonathan Roelofs [Thu, 9 Feb 2017 23:02:37 +0000 (23:02 +0000)]
[docs] Fix typo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294645
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Adrian McCarthy [Thu, 9 Feb 2017 22:49:35 +0000 (22:49 +0000)]
Fix build break from r294633.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294642
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Simon Pilgrim [Thu, 9 Feb 2017 22:35:59 +0000 (22:35 +0000)]
[X86] Remove duplicate call to getValueType. NFCI.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294640
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Peter Collingbourne [Thu, 9 Feb 2017 22:02:28 +0000 (22:02 +0000)]
X86: Introduce relocImm-based patterns for cmp.
Differential Revision: https://reviews.llvm.org/D28690
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294636
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Matt Arsenault [Thu, 9 Feb 2017 22:00:42 +0000 (22:00 +0000)]
AMDGPU: Add pass to expand memcpy/memmove/memset
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294635
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Peter Collingbourne [Thu, 9 Feb 2017 21:58:24 +0000 (21:58 +0000)]
X86: Teach X86InstrInfo::analyzeCompare to recognize compares of symbols.
This requires that we communicate to X86InstrInfo::optimizeCompareInstr
that the second operand is neither a register nor an immediate. The way we
do that is by setting CmpMask to zero.
Note that there were already instructions where the second operand was not a
register nor an immediate, namely X86::SUB*rm, so also set CmpMask to zero
for those instructions. This seems like a latent bug, but I was unable to
trigger it.
Differential Revision: https://reviews.llvm.org/D28621
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294634
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Adrian McCarthy [Thu, 9 Feb 2017 21:51:19 +0000 (21:51 +0000)]
Introduce NativeRawSymbol for PDB reading.
This is a stub for a new concrete implementation of IPDBRawSymbol.
Nothing uses this uses this implementation yet. My plan is to
locally switch lldb-pdbdump from the DIA reader to the Native one
and flesh out the implementations of these method stubs in the order
they're needed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294633
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Michael J. Spencer [Thu, 9 Feb 2017 21:46:49 +0000 (21:46 +0000)]
[LoadCombine] Fix combining of loads which span an aliasing store.
Fixes PR31517
Differential Revision: https://reviews.llvm.org/D28922
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294632
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Peter Collingbourne [Thu, 9 Feb 2017 21:45:01 +0000 (21:45 +0000)]
Rename LowerTypeTestsSummaryAction to PassSummaryAction. NFCI.
I intend to use the same type with the same semantics in the WholeProgramDevirt
pass.
Differential Revision: https://reviews.llvm.org/D29746
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294629
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Sanjay Patel [Thu, 9 Feb 2017 21:43:06 +0000 (21:43 +0000)]
[InstCombine] use m_APInt to allow demanded bits analysis on splat constants
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294628
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Konstantin Zhuravlyov [Thu, 9 Feb 2017 21:33:23 +0000 (21:33 +0000)]
[AMDGPU] Calculate number of min/max SGPRs/VGPRs for WavesPerEU instead of using switch statement
Differential Revision: https://reviews.llvm.org/D29741
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294627
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Sanjay Patel [Thu, 9 Feb 2017 21:33:19 +0000 (21:33 +0000)]
[InstCombine] add test for demanded bits with splat vector constants; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294625
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Tom Stellard [Thu, 9 Feb 2017 21:29:12 +0000 (21:29 +0000)]
CODE_OWNERS: Update email address
Also clean up description.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294624
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Daniel Berlin [Thu, 9 Feb 2017 20:37:46 +0000 (20:37 +0000)]
Drop graph_ prefix
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294621
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Daniel Berlin [Thu, 9 Feb 2017 20:37:24 +0000 (20:37 +0000)]
GraphTraits: Add range versions of graph traits functions (graph_nodes, graph_children, inverse_graph_nodes, inverse_graph_children).
Summary:
Convert all obvious node_begin/node_end and child_begin/child_end
pairs to range based for.
Sending for review in case someone has a good idea how to make
graph_children able to be inferred. It looks like it would require
changing GraphTraits to be two argument or something. I presume
inference does not happen because it would have to check every
GraphTraits in the world to see if the noderef types matched.
Note: This change was 3-staged with clang as well, which uses
Dominators/etc from LLVM.
Reviewers: chandlerc, tstellarAMD, dblaikie, rsmith
Subscribers: arsenm, llvm-commits, nhaehnle
Differential Revision: https://reviews.llvm.org/D29767
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294620
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Saleem Abdulrasool [Thu, 9 Feb 2017 20:06:30 +0000 (20:06 +0000)]
test: adjust the test for the BSD format
The padding for ld64 changes the header to include the padding. Adjust
the test to account for this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294619
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Frederic Riss [Thu, 9 Feb 2017 19:41:55 +0000 (19:41 +0000)]
[dsymutil] Fix handling of empty CUs in LTO links.
r288399 introduced the DIEUnit class, and in the process broke
the corner case where dsymutil generates an empty CU during an
LTO link. This restores the logic and adds a test for the corner
case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294618
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Sanjoy Das [Thu, 9 Feb 2017 19:40:22 +0000 (19:40 +0000)]
[JumpThreading] Thread through guards
Summary:
This patch allows JumpThreading also thread through guards.
Virtually, guard(cond) is equivalent to the following construction:
if (cond) { do something } else {deoptimize}
Yet it is not explicitly converted into IFs before lowering.
This patch enables early threading through guards in simple cases.
Currently it covers the following situation:
if (cond1) {
// code A
} else {
// code B
}
// code C
guard(cond2)
// code D
If there is implication cond1 => cond2 or !cond1 => cond2, we can transform
this construction into the following:
if (cond1) {
// code A
// code C
} else {
// code B
// code C
guard(cond2)
}
// code D
Thus, removing the guard from one of execution branches.
Patch by Max Kazantsev!
Reviewers: reames, apilipenko, igor-laevsky, anna, sanjoy
Reviewed By: sanjoy
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D29620
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294617
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Vedant Kumar [Thu, 9 Feb 2017 19:37:18 +0000 (19:37 +0000)]
[utils] coverage: Add help text about the --restrict flag (NFC)
Passing the --restrict flag to the coverage prep script before other
positional arguments is wrong, because it prevents the argparse module
from telling apart arguments to --restrict versus positional arguments.
Pointed out by Sean Callanan!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294616
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Saleem Abdulrasool [Thu, 9 Feb 2017 19:29:35 +0000 (19:29 +0000)]
Object: pad out BSD archive members to 8-bytes
ld64 requires its archive members to be 8-byte aligned for 64-bit
content and 4-byte aligned for 32-bit content. Opt for the larger
alignment requirement. This ensures that ld64 can consume archives
generated by llvm-ar.
Thanks to Kevin Enderby for the hint about the ld64/cctools behaviours!
Resolves PR28361!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294615
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Simon Pilgrim [Thu, 9 Feb 2017 18:52:24 +0000 (18:52 +0000)]
Convert to for-range loop. NFCI.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294610
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Geoff Berry [Thu, 9 Feb 2017 18:28:17 +0000 (18:28 +0000)]
[SelectionDAG] Fix bugs in inverted condition splitting code.
Summary:
Fix two bugs in SelectionDAGBuilder::FindMergedConditions reported by
Mikael Holmen. Handle non-canonicalized xor not operation
correctly (was assuming operand 0 was always the non-constant operand)
and check that the negated condition is also in the same block as the
original and/or instruction (as is done for and/or operands already)
before proceeding with optimization.
Reviewers: bogner, MatzeB, qcolombet
Subscribers: mcrosier, uabelho, llvm-commits
Differential Revision: https://reviews.llvm.org/D29680
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294605
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Chris Bieneman [Thu, 9 Feb 2017 18:14:12 +0000 (18:14 +0000)]
[CMake] Fix standalone project builds broken in r294514
This patch sets the global property indicating that target registration is complete for standalone sub-project builds.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294602
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Sanjay Patel [Thu, 9 Feb 2017 18:12:39 +0000 (18:12 +0000)]
[InstCombine] add tests for icmp with add nsw; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294601
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Kevin Enderby [Thu, 9 Feb 2017 17:56:26 +0000 (17:56 +0000)]
Tweak the implementation of llvm-objdump’s -objc-meta-data option so
that it works when the ObjC metadata sections end up in the
__DATA_CONST or __DATA_DIRTY segments.
rdar://
26315238
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294599
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Simon Pilgrim [Thu, 9 Feb 2017 17:54:51 +0000 (17:54 +0000)]
[X86][BMI2] Regenerate mulx tests
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294598
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Simon Pilgrim [Thu, 9 Feb 2017 17:08:47 +0000 (17:08 +0000)]
[X86][MMX] Remove the (long time) unused MMX_PINSRW ISD opcode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294596
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Kostya Kortchinsky [Thu, 9 Feb 2017 16:07:52 +0000 (16:07 +0000)]
[docs] Documentation update for Scudo
Summary:
Documentation update to reflect the changes that occured in the allocator:
- additional architectures support;
- modification of the header;
- options default values for 32 & 64-bit.
Reviewers: kcc, alekseyshl
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D29592
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294595
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Saleem Abdulrasool [Thu, 9 Feb 2017 15:47:58 +0000 (15:47 +0000)]
Object: add a comment explaining a divergence
Add a note about the reason for the divergence from the specification
for ld64. Addresses post-commit review comments from Davide. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294594
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David Bozier [Thu, 9 Feb 2017 15:40:14 +0000 (15:40 +0000)]
Revert: "[Stack Protection] Add diagnostic information for why stack protection was applied to a function"
this reverts revision r294590 as it broke some buildbots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294593
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Artur Pilipenko [Thu, 9 Feb 2017 15:13:40 +0000 (15:13 +0000)]
Add DAGCombiner load combine tests for partially available values
If some of the trailing or leading bytes of a load combine pattern are zeroes we can combine the pattern to a load + zext and shift. Currently we don't support it, so the tests check the current codegen without load combine. This change will make the patch to support this kind of combine a bit more clear.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294591
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David Bozier [Thu, 9 Feb 2017 15:08:40 +0000 (15:08 +0000)]
[Stack Protection] Add diagnostic information for why stack protection was applied to a function
Stack Smash Protection is not completely free, so in hot code, the overhead it causes can cause performance issues. By adding diagnostic information for which function have SSP and why, a user can quickly determine what they can do to stop SSP being applied to a specific hot function.
This change adds an SSP-specific DiagnosticInfo class and uses of it to the Stack Protection code. A subsequent change to clang will cause the remarks to be emitted when enabled.
Patch by: James Henderson
Differential Revision: https://reviews.llvm.org/D29023
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294590
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Rafael Espindola [Thu, 9 Feb 2017 14:59:20 +0000 (14:59 +0000)]
Make it possible to set SHF_LINK_ORDER explicitly.
This will make it possible to add support for gcing user metadata
(asan for example).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294589
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Pierre Gousseau [Thu, 9 Feb 2017 14:43:58 +0000 (14:43 +0000)]
[X86][btver2] PR31902: Fix a crash in combineOrCmpEqZeroToCtlzSrl under fast math.
In combineOrCmpEqZeroToCtlzSrl, replace "getConstantOperand == 0" by "isNullConstant" to account for floating point constants.
Differential Revision: https://reviews.llvm.org/D29756
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294588
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Simon Pilgrim [Thu, 9 Feb 2017 14:14:06 +0000 (14:14 +0000)]
[X86][SSE] Added extra FMA/NO-FMA reciprocal test cases for D26855
Test for expected codegen for nr reciprocal cases with/without FMA
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294587
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David Bozier [Thu, 9 Feb 2017 14:12:30 +0000 (14:12 +0000)]
[docs] cleanup documentation on lit substitutions
1. Added missing substitutions to the documentation in docs/TestingGuide.rst
2. Modified docs/CommandGuide/lit.rst to only document the "base" set of substitutions and to refer the reader to docs/TestingGuide.rst for more detailed info on substitutions.
Patch by bd1976llvm
Differential Revision: https://reviews.llvm.org/D29281
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294586
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Diana Picus [Thu, 9 Feb 2017 13:09:59 +0000 (13:09 +0000)]
[ARM] GlobalISel: Lower single precision FP args
Both for aapcscc and aapcs_vfpcc. We currently filter out soft float targets
because we don't support libcalls yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294584
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Artur Pilipenko [Thu, 9 Feb 2017 12:06:01 +0000 (12:06 +0000)]
[DAGCombiner] Support non-zero offset in load combine
Enable folding patterns which load the value from non-zero offset:
i8 *a = ...
i32 val = a[4] | (a[5] << 8) | (a[6] << 16) | (a[7] << 24)
=>
i32 val = *((i32*)(a+4))
Reviewed By: RKSimon
Differential Revision: https://reviews.llvm.org/D29394
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294582
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Simon Pilgrim [Thu, 9 Feb 2017 11:50:19 +0000 (11:50 +0000)]
[X86][SSE] Attempt to break register dependencies during lowerBuildVector
LowerBuildVectorv16i8/LowerBuildVectorv8i16 insert values into a UNDEF vector if the build vector doesn't contain any zero elements, resulting in register dependencies with a previous use of the register.
This patch attempts to break the register dependency by either always zeroing the vector before hand or (if we're inserting to the 0'th element) by using VZEXT_MOVL(SCALAR_TO_VECTOR(i32 AEXT(Elt))) which lowers to (V)MOVD and performs a similar function. Additionally (V)MOVD is a shorter instruction than PINSRB/PINSRW. We already do something similar for SSE41 PINSRD.
On pre-SSE41 LowerBuildVectorv16i8 we go a little further and use VZEXT_MOVL(SCALAR_TO_VECTOR(i32 ZEXT(Elt))) if the build vector contains zeros to avoid the vector zeroing at the cost of a scalar zero extension, which can probably be brought over to the other cases in a future patch in some cases (load folding etc.)
Differential Revision: https://reviews.llvm.org/D29720
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294581
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Vitaly Buka [Thu, 9 Feb 2017 09:28:05 +0000 (09:28 +0000)]
LVI: Fix use-of-uninitialized-value after r294463
BlockValueStack can be reallocated making reference e invalid.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294572
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Igor Breger [Thu, 9 Feb 2017 07:39:19 +0000 (07:39 +0000)]
Add new tests for EXTRACT_VECTOR_ELT (vector of packed i8/16/i32/i64/ps/pd data)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294565
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Craig Topper [Thu, 9 Feb 2017 06:51:02 +0000 (06:51 +0000)]
[X86] Remove the HLE feature flag.
We only implemented it for one of the 3 HLE instructions and that instruction is also under the RTM flag. Clang only implements the RTM flag from its command line.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294562
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Craig Topper [Thu, 9 Feb 2017 06:50:59 +0000 (06:50 +0000)]
[X86] Remove INVPCID and SMAP feature flags. They aren't currently used by any instructions and not tested.
If we implement intrinsics for their instructions in the future, the feature flags can be added back with proper testing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294561
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Craig Topper [Thu, 9 Feb 2017 04:27:34 +0000 (04:27 +0000)]
[X86] Clzero intrinsic and its addition under znver1
This patch does the following.
1. Adds an Intrinsic int_x86_clzero which works with __builtin_ia32_clzero
2. Identifies clzero feature using cpuid info. (Function:8000_0008, Checks if EBX[0]=1)
3. Adds the clzero feature under znver1 architecture.
4. The custom inserter is added in Lowering.
5. A testcase is added to check the intrinsic.
6. The clzero instruction is added to assembler test.
Patch by Ganesh Gopalasubramanian with a couple formatting tweaks, a disassembler test, and using update_llc_test.py from me.
Differential revision: https://reviews.llvm.org/D29385
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294558
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Saleem Abdulrasool [Thu, 9 Feb 2017 04:26:21 +0000 (04:26 +0000)]
Object: pad BSD ar string table to 4-bytes
cctools would pad the string table to a sizeof(int32_t) (explicitly
printed out by cctools rather than 4). This adjusts the string table to
make it more compatible with cctools, but is insufficient to make ld64
happy.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294557
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Ahmed Bougacha [Thu, 9 Feb 2017 02:50:01 +0000 (02:50 +0000)]
[GlobalISel] Simplify StringRef parameters. NFC.
'const' on StringRef parameters adds no guarantees. Remove it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294555
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Arnold Schwaighofer [Thu, 9 Feb 2017 01:52:17 +0000 (01:52 +0000)]
SwiftCC: swifterror register cannot be as the base register
Functions that have a dynamic alloca require a base register which is defined to
be X19 on AArch64 and r6 on ARM. We have defined the swifterror register to be
the same register. Use a different callee save register for swifterror instead:
X21 on AArch64
R8 on ARM
rdar://
30433803
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294551
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Peter Collingbourne [Thu, 9 Feb 2017 01:48:24 +0000 (01:48 +0000)]
LowerTypeTests: Change a few vtable globals in tests to constants.
It turns out that some of our negative tests were not in fact providing the
test coverage we expected: they were passing because the vtables were failing
an early check that they were constant. Fix this by changing the globals in
these tests to constants.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294550
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Eugene Zelenko [Thu, 9 Feb 2017 01:09:54 +0000 (01:09 +0000)]
[MC] Fix some Clang-tidy modernize and Include What You Use warnings in SubtargetFeature; other minor fixes (NFC).
Same changes in files affected by reduced SubtargetFeature.h dependencies.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294548
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Wolfgang Pieb [Wed, 8 Feb 2017 23:46:59 +0000 (23:46 +0000)]
Reapply r294356 ("Keep track of spilled variables in LiveDebugValues").
Was reverted with r294447 due to undefined behavior with negative offsets
in DBG_VALUE instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294532
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Tim Northover [Wed, 8 Feb 2017 23:23:39 +0000 (23:23 +0000)]
GlobalISel: legalize G_FPOW to a libcall on AArch64.
There's no instruction to implement it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294531
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Tim Northover [Wed, 8 Feb 2017 23:23:32 +0000 (23:23 +0000)]
GlobalISel: translate @llvm.pow intrinsic to G_FPOW.
It'll usually be immediately legalized back to a libcall, but occasionally
something can be done with it so we'd just as well enable that flexibility from
the start.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294530
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Mike Aizatsky [Wed, 8 Feb 2017 23:12:46 +0000 (23:12 +0000)]
[sancov] using comdat only when it is enabled
Differential Revision: https://reviews.llvm.org/D29733
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294529
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Arnold Schwaighofer [Wed, 8 Feb 2017 22:30:47 +0000 (22:30 +0000)]
[ARM/AArch ISel] SwiftCC: First parameters that are marked swiftself are not 'this returns'
We mark X0 as preserved by a call that passes the returned parameter.
x0 = ...
fun(x0) // no implicit def of x0
This no longer is valid if we pass the parameter in a different register then
the returned value as is the case with a swiftself parameter (passed in x20).
x20 = ...
fun(x20) // there should be an implict def of x8
rdar://
30425845
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294527
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Eugene Zelenko [Wed, 8 Feb 2017 22:23:19 +0000 (22:23 +0000)]
[MC] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294526
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Eugene Zelenko [Wed, 8 Feb 2017 22:19:56 +0000 (22:19 +0000)]
[ARM] Fix some Include What You Use warnings; other minor fixes (NFC).
This is preparation to reduce MC headers dependencies.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294525
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Sanjay Patel [Wed, 8 Feb 2017 22:14:11 +0000 (22:14 +0000)]
[InstCombine] add tests to show information-losing add nsw/nuw transforms; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294524
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Amara Emerson [Wed, 8 Feb 2017 21:41:16 +0000 (21:41 +0000)]
Revert r294437 as it broke an asan buildbot.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294523
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Tim Northover [Wed, 8 Feb 2017 21:22:25 +0000 (21:22 +0000)]
GlobalISel: select G_[SU]MULH on AArch64.
Hopefully this'll be nuked by tablegen pretty soon, but until then it's
reasonably important for supporting C++ operator new[].
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294520
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Tim Northover [Wed, 8 Feb 2017 21:22:15 +0000 (21:22 +0000)]
GlobalISel: expand mul-with-overflow into mul-hi on AArch64.
AArch64 has specific instructions to multiply two numbers at double the width
and produce the high part of the result. These can be used to implement LLVM's
mul.with.overflow instructions fairly simply. Helps with C++ operator new[].
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294519
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Stanislav Mekhanoshin [Wed, 8 Feb 2017 21:22:03 +0000 (21:22 +0000)]
[AMDGPU] Implement register pressure callbacks
Implement getRegPressureLimit and getRegPressureSetLimit callbacks in
SIRegisterInfo.
This makes standard converge scheduler to behave almost the same as
GCNScheduler, sometime slightly better sometimes a bit worse.
In gerenal that is also possible to switch GCNScheduler to use these
callbacks instead of getMaxWaves(), which also makes GCNScheduler
slightly better on some tests and slightly worse on another. A big
win is behavior with converge scheduler.
Note, these are used not only by scheduling, but in places like
MachineLICM.
Differential Revision: https://reviews.llvm.org/D29700
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294518
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Mike Aizatsky [Wed, 8 Feb 2017 21:20:33 +0000 (21:20 +0000)]
[sancov] specifying comdat for sancov constructors
Differential Revision: https://reviews.llvm.org/D29662
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294517
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Peter Collingbourne [Wed, 8 Feb 2017 21:16:27 +0000 (21:16 +0000)]
Take code ownership of LLVM bitcode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294516
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Chris Bieneman [Wed, 8 Feb 2017 20:58:37 +0000 (20:58 +0000)]
[CMake] Fix `is_llvm_target_library` and support out-of-order components
Summary: This patch is required by D28855, and enables us to rely on CMake's ability to handle out of order target dependencies.
Reviewers: mgorny, chapuni, bryant
Subscribers: llvm-commits, jgosnell
Differential Revision: https://reviews.llvm.org/D28869
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294514
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Hans Wennborg [Wed, 8 Feb 2017 20:58:33 +0000 (20:58 +0000)]
build_llvm_package.bat: Build teh clang-format plugin separately
In r293373 we switched the build to linking dynamically against the
Universal CRT and include the redistributables in the installer.
However, clang-format.exe is copied into the vsix and needs to be
statically linked. This commit makes us build the plugin in a separate
step that uses static linking.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294513
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Peter Collingbourne [Wed, 8 Feb 2017 20:44:00 +0000 (20:44 +0000)]
ThinLTOBitcodeWriter: Strip debug info from merged module.
This module will contain nothing but vtable definitions and (soon)
available_externally function definitions, so there is no point in keeping
debug info in the module.
Differential Revision: https://reviews.llvm.org/D28913
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294511
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Alexey Bataev [Wed, 8 Feb 2017 19:52:46 +0000 (19:52 +0000)]
[SLP] Additional test to check correct work of horizontal reductions,
NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294505
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Elena Demikhovsky [Wed, 8 Feb 2017 19:25:23 +0000 (19:25 +0000)]
[Loop Vectorizer] Cost-based decision for vectorization form of memory instruction.
Making the cost model selecting between Interleave, GatherScatter or Scalar vectorization form of memory instruction.
The right decision should be done for non-consecutive memory access instrcuctions that may have more than one vectorization solution.
This patch includes the following changes:
- Cost Model calculates the cost of Load/Store vector form and choose the better option between Widening, Interleave, GatherScactter and Scalarization. Cost Model keeps the widening decision.
- Arrays of Uniform and Scalar values are moved from Legality to Cost Model.
- Cost Model collects Uniforms and Scalars per VF. The collection is based on CM decision map of Loadis/Stores vectorization form.
- Vectorization of memory instruction is performed according to the CM decision.
Differential Revision: https://reviews.llvm.org/D27919
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294503
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