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Lang Hames [Sat, 5 Dec 2015 01:44:20 +0000 (01:44 +0000)]
Whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254821
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Keno Fischer [Sat, 5 Dec 2015 01:38:12 +0000 (01:38 +0000)]
[opt] Fix run-twice option for non-idempotent passes
Cloning the module was supposed to guard against the possibility
that the passes may be non-idempotent. However, for some reason
I decided to put that AFTER the passes had already run on the
module, defeating the point entirely. Fix that by moving up the
CloneModule as is done in llc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254819
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Keno Fischer [Sat, 5 Dec 2015 01:02:53 +0000 (01:02 +0000)]
[MC] Add a test for state reset in MCMachOStreamer
This was fixed in r254751, but untestable until r254774, which
added the necessary command line flag to llc. Add a test now
to make sure this doesn't regress again.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254814
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Cong Hou [Sat, 5 Dec 2015 01:00:22 +0000 (01:00 +0000)]
Fix a typo in LoopVectorize.cpp. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254813
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Dan Gohman [Sat, 5 Dec 2015 00:51:40 +0000 (00:51 +0000)]
[WebAssembly] Fix scheduling dependencies in register-stackified code
Add physical register defs to instructions used from stackified
instructions to prevent them from being scheduled into the middle of
a stack sequence. This is a conservative measure which may be loosened
in the future.
Differential Revision: http://reviews.llvm.org/D15252
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254811
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Justin Bogner [Sat, 5 Dec 2015 00:39:14 +0000 (00:39 +0000)]
CodeGen: Let the BumpPtrAllocator free the elements of indexList
The indexList's nodes are all allocated on a BumpPtrAllocator, so it's
more efficient to let them be freed when it goes away, rather than
deleting them directly. This is a follow up to r254794.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254808
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Derek Schuff [Sat, 5 Dec 2015 00:26:39 +0000 (00:26 +0000)]
[WebAssembly] Support constant offsets on loads and stores
This is just prototype for load/store for i32 types. I'll add them to
the rest of the types if we like this direction.
Differential Revision: http://reviews.llvm.org/D15197
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254807
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Philip Reames [Sat, 5 Dec 2015 00:18:33 +0000 (00:18 +0000)]
[EarlyCSE] IsSimple vs IsVolatile naming clarification (NFC)
When the notion of target specific memory intrinsics was introduced to EarlyCSE, the commit confused the notions of volatile and simple memory access. Since I'm about to start working on this area, cleanup the naming so that patches aren't horribly confusing. Note that the actual implementation was always bailing if the load or store wasn't simple.
Reminder:
- "volatile" - C++ volatile, can't remove any memory operations, but in principal unordered
- "ordered" - imposes ordering constraints on other nearby memory operations
- "atomic" - can't be split or sheared. In LLVM terms, all "ordered" operations are also atomic so the predicate "isAtomic" is often used.
- "simple" - a load which is none of the above. These are normal loads and what most of the optimizer works with.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254805
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Keno Fischer [Sat, 5 Dec 2015 00:06:37 +0000 (00:06 +0000)]
[opt] Fix sanitizer complaints about r254774
`Out` can be null if no output is requested, so move any access
to it inside the conditional. Thanks to Justin Bogner for finding
this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254804
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Philip Reames [Fri, 4 Dec 2015 23:48:19 +0000 (23:48 +0000)]
[PassManager] Ensure destructors of cached AnalysisUsage objects are run
In 254760, I introduced the usage of a BumpPtrAllocator for the AnalysisUsage instances held by the PassManger. This turns out to have been incorrect since a BumpPtrAllocator does not run the destructors of objects when deallocating memory. Since a few of our SmallVector's had grown beyond their small size, we end up with some leaked memory. We need to use a SpecificBumpPtrAllocator instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254803
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Teresa Johnson [Fri, 4 Dec 2015 23:40:22 +0000 (23:40 +0000)]
[ThinLTO] Helper for performing renaming/promotion on a module
Creates a module and performs necessary renaming/promotion of locals
that may be exported to another module.
Split out of D15024.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254802
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Hans Wennborg [Fri, 4 Dec 2015 23:32:19 +0000 (23:32 +0000)]
Add FeatureLAHFSAHF to amdfam10 as well.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254801
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Dan Gohman [Fri, 4 Dec 2015 23:22:35 +0000 (23:22 +0000)]
[WebAssembly] Initial varargs support.
Full varargs support will depend on prologue/epilogue support, but this patch
gets us started with most of the basic infrastructure.
Differential Revision: http://reviews.llvm.org/D15231
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254799
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Philip Reames [Fri, 4 Dec 2015 23:06:33 +0000 (23:06 +0000)]
Address a memory leak in 254760
The issue appears to have been that the copy constructor of the SmallVector was being invoked and this was somehow leading to leaked memory. This patch avoids the symptom, but likely doesn't address the underlying problem. I'm still investigating the root cause, but wanted to avoid the memory leak in the mean time. Even with the underlying fix, avoiding the redundant allocation is worthwhile.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254795
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Justin Bogner [Fri, 4 Dec 2015 23:00:54 +0000 (23:00 +0000)]
CodeGen: Move the SlotIndexes BumpPtrAllocator before the list it allocates
When a `SlotIndexes` is destroyed, `ileAllocator` will currently be
destructed before `IndexList`, but all of `IndexList`'s storage has
been allocated by `ileAllocator`. This means we'll call destructors on
garbage data, which is very bad. This can be avoided by putting the
BumpPtrAllocator earlier in the class than anything it allocates.
Unfortunately, I don't know how to test this. It depends very much on
memory layout, and the only evidence I have that this is actually
happening in practice are backtraces that might be explained by this.
By inspection though, the code is obviously dangerous/wrong, and this
is the right thing to do.
I'll follow up later with a patch that calls clearAndLeakNodesUnsafely
on the list, since there isn't much point in destructing them when
they're allocated in a BPA anyway, but I figured it makes sense to
commit the correctness fix separately from that optimization.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254794
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Hans Wennborg [Fri, 4 Dec 2015 23:00:33 +0000 (23:00 +0000)]
X86: Don't emit SAHF/LAHF for 64-bit targets unless explicitly supported
These instructions are not supported by all CPUs in 64-bit mode. Emitting them
causes Chromium to crash on start-up for users with such chips.
(GCC puts these instructions behind -msahf on 64-bit for the same reason.)
This patch adds FeatureLAHFSAHF, enables it by default for 32-bit targets
and modern CPUs, and changes X86InstrInfo::copyPhysReg back to the lowering
from before r244503 when the instructions are not available.
Differential Revision: http://reviews.llvm.org/D15240
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254793
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Derek Schuff [Fri, 4 Dec 2015 22:47:58 +0000 (22:47 +0000)]
Add TransformUtils to list of required libraries for llc
This dependency was added in r254774
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254786
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Kostya Serebryany [Fri, 4 Dec 2015 22:29:39 +0000 (22:29 +0000)]
[libFuzzer] compute base64 in-process instead of using an external lib. Since libFuzzer should not depend on anything, just re-implement base64 encoder. PR25746
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254784
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Rafael Espindola [Fri, 4 Dec 2015 22:26:21 +0000 (22:26 +0000)]
MSVC complains about this being ambiguous.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254782
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Lang Hames [Fri, 4 Dec 2015 22:09:19 +0000 (22:09 +0000)]
[Orc] Move some code up into the JITCompileCallbackManager base class. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254778
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Rafael Espindola [Fri, 4 Dec 2015 22:08:53 +0000 (22:08 +0000)]
Always pass a diagnostic handler to the linker.
Before this patch the diagnostic handler was optional. If it was not
passed, the one in the LLVMContext was used.
That is probably not a pattern we want to follow. If each area has an
optional callback, there is a sea of callbacks and it is hard to follow
which one is called.
Doing this also found cases where the callback is a nice addition, like
testing that no errors or warnings are reported.
The other option is to always use the diagnostic handler in the
LLVMContext. That has a few problems
* To implement the C API we would have to set the diag handler and then
set it back to the original value.
* Code that creates the context might be far away from code that wants
the diagnostics.
I do have a patch that implements the second option and will send that as
an RFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254777
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Weiming Zhao [Fri, 4 Dec 2015 22:00:47 +0000 (22:00 +0000)]
[SimplifyLibCalls] Optimization for pow(x, n) where n is some constant
Summary:
In order to avoid calling pow function we generate repeated fmul when n is a
positive or negative whole number.
For each exponent we pre-compute Addition Chains in order to minimize the no.
of fmuls.
Refer: http://wwwhomes.uni-bielefeld.de/achim/addition_chain.html
We pre-compute addition chains for exponents upto 32 (which results in a max of
7 fmuls).
For eg:
4 = 2+2
5 = 2+3
6 = 3+3 and so on
Hence,
pow(x, 4.0) ==> y = fmul x, x
x = fmul y, y
ret x
For negative exponents, we simply compute the reciprocal of the final result.
Note: This transformation is only enabled under fast-math.
Patch by Mandeep Singh Grang <mgrang@codeaurora.org>
Reviewers: weimingz, majnemer, escha, davide, scanon, joerg
Subscribers: probinson, escha, llvm-commits
Differential Revision: http://reviews.llvm.org/D13994
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254776
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Pete Cooper [Fri, 4 Dec 2015 21:59:04 +0000 (21:59 +0000)]
Fix incorrect quote. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254775
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Keno Fischer [Fri, 4 Dec 2015 21:56:46 +0000 (21:56 +0000)]
[llc/opt] Add an option to run all passes twice
Summary: Lately, I have submitted a number of patches to fix bugs that
only occurred when using the same pass manager to compile multiple
modules (generally these bugs are failure to reset some persistent
state). Unfortunately I don't think there is currently a way to test
that from the command line. This adds a very simple flag to both llc
and opt, under which the tools will simply re-run their respective
pass pipelines using the same pass manager on (a clone of the same
module). Additionally, we verify that both outputs are bitwise the
same.
Reviewers: yaron.keren
Subscribers: loladiro, yaron.keren, kcc, llvm-commits
Differential Revision: http://reviews.llvm.org/D14965
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254774
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Chad Rosier [Fri, 4 Dec 2015 21:38:44 +0000 (21:38 +0000)]
[AArch64] Expand vector SDIVREM/UDIVREM operations.
http://reviews.llvm.org/D15214
Patch by Ana Pazos <apazos@codeaurora.org>!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254773
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David Blaikie [Fri, 4 Dec 2015 21:38:39 +0000 (21:38 +0000)]
[llvm-dwp] Remove some out of date comments
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254772
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David Blaikie [Fri, 4 Dec 2015 21:30:23 +0000 (21:30 +0000)]
[llvm-dwp] Implement the required on-disk probed hash table
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254770
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Reid Kleckner [Fri, 4 Dec 2015 21:29:53 +0000 (21:29 +0000)]
Fix llvm-readobj build on Windows, match noreturn attribute on reportError in headers
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254769
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David Blaikie [Fri, 4 Dec 2015 21:16:42 +0000 (21:16 +0000)]
[llvm-dwp] Include the debug_line.dwo section
This probably shouldn't be generated in the .dwo file for CUs, only for
TUs, but it's in the sample .dwos (generated by clang) so dwp should
reflect that.
Arguably the DWP tool could be smart enough to know that the CUs
shouldn't need a debug_line.dwo section and skip that even when it's
legitimately generated for TUs, but that's a bit more off-book.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254767
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Sanjoy Das [Fri, 4 Dec 2015 20:34:37 +0000 (20:34 +0000)]
[OperandBundles] Allow operand-specific attributes in operand bundles
Currently `OperandBundleUse::operandsHaveAttr` computes its result
without being given a specific operand. This is problematic because it
forces us to say that, e.g., even non-pointer operands in `"deopt"`
operand bundles are `readonly`, which doesn't make sense.
This commit changes `operandsHaveAttr` to work in the context of a
specific operand, so that we can give the operand attributes that make
sense for the operands's `llvm::Type`.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254764
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Philip Reames [Fri, 4 Dec 2015 20:05:04 +0000 (20:05 +0000)]
[LegacyPassManager] Reduce memory usage for AnalysisUsage
The LegacyPassManager was storing an instance of AnalysisUsage for each instance of each pass. In practice, most instances of a single pass class share the same dependencies. We can't rely on this because passes can (and some do) have dynamic dependencies based on instance options.
We can exploit the likely commonality by uniqueing the usage information after querying the pass, but before storing it into the pass manager. This greatly reduces memory consumption by the AnalysisUsage objects. For a long pass pipeline, I measured a decrease in memory consumption for this storage of about 50%. I have not measured on the default O3 pipeline, but I suspect it will see some benefit as well since many passes are repeated (e.g. InstCombine).
Differential Revision: http://reviews.llvm.org/D14677
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254760
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Matthias Braun [Fri, 4 Dec 2015 19:54:24 +0000 (19:54 +0000)]
ScheduleDAGInstrs: Move LiveIntervals field to ScheduleDAGMI
Now that ScheduleDAGInstrs doesn't need it anymore we can move the field
down the class hierarcy to ScheduleDAGMI.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254759
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Davide Italiano [Fri, 4 Dec 2015 19:29:49 +0000 (19:29 +0000)]
[llvm-readobj] reportError() never returns. Mark with the correct attribute.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254752
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Davide Italiano [Fri, 4 Dec 2015 19:27:58 +0000 (19:27 +0000)]
[llvm-readobj/ELF] Simplify Verdef handling.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254751
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Mike Aizatsky [Fri, 4 Dec 2015 19:11:54 +0000 (19:11 +0000)]
fixing Makefile
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254749
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Mike Aizatsky [Fri, 4 Dec 2015 18:50:18 +0000 (18:50 +0000)]
adding MC dependencies in hopes to pacify the hexagon build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254745
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Mike Aizatsky [Fri, 4 Dec 2015 18:35:37 +0000 (18:35 +0000)]
sancov -not-covered-functions.
Summary: The command prints out list of functions that were not entered.
To do this, addresses are first converted to function locations. Set
operations are used for function locations.
Differential Revision: http://reviews.llvm.org/D14889
review
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254742
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Dan Gohman [Fri, 4 Dec 2015 18:27:03 +0000 (18:27 +0000)]
[WebAssembly] Add several more calling conventions to the supported list.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254741
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Sanjay Patel [Fri, 4 Dec 2015 17:54:31 +0000 (17:54 +0000)]
don't repeat function names in comments; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254740
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Sanjay Patel [Fri, 4 Dec 2015 17:51:55 +0000 (17:51 +0000)]
fix formatting; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254739
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Manman Ren [Fri, 4 Dec 2015 17:40:13 +0000 (17:40 +0000)]
[CXX TLS calling convention] Add CXX TLS calling convention.
This commit adds a new target-independent calling convention for C++ TLS
access functions. It aims to minimize overhead in the caller by perserving as
many registers as possible.
The target-specific implementation for X86-64 is defined as following:
Arguments are passed as for the default C calling convention
The same applies for the return value(s)
The callee preserves all GPRs - except RAX and RDI
The access function makes C-style TLS function calls in the entry and exit
block, C-style TLS functions save a lot more registers than normal calls.
The added calling convention ties into the existing implementation of the
C-style TLS functions, so we can't simply use existing calling conventions
such as preserve_mostcc.
rdar://
9001553
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254737
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David Blaikie [Fri, 4 Dec 2015 17:20:04 +0000 (17:20 +0000)]
[llvm-dwp] Retrieve the DWOID from the CU for the cu_index entry
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254731
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Dan Gohman [Fri, 4 Dec 2015 17:19:44 +0000 (17:19 +0000)]
[WebAssembly] Give names to the callseq begin and end instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254730
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Dan Gohman [Fri, 4 Dec 2015 17:18:32 +0000 (17:18 +0000)]
[WebAssembly] clang-format CallingConvSupported. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254729
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Dan Gohman [Fri, 4 Dec 2015 17:16:07 +0000 (17:16 +0000)]
[WebAssembly] Factor out the list of supported calling conventions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254728
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Dan Gohman [Fri, 4 Dec 2015 17:12:52 +0000 (17:12 +0000)]
[WebAssembly] Check for more unsupported ABI flags.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254727
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Dan Gohman [Fri, 4 Dec 2015 17:09:42 +0000 (17:09 +0000)]
[WebAssembly] Use SelectionDAG::getUNDEF. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254726
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Krzysztof Parzyszek [Fri, 4 Dec 2015 16:18:15 +0000 (16:18 +0000)]
[Hexagon] Simplify LowerCONCAT_VECTORS, handle different types better
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254724
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Rafael Espindola [Fri, 4 Dec 2015 16:14:31 +0000 (16:14 +0000)]
Modernize the C++ APIs for creating LTO modules.
This is a continuation of r253367.
These functions return is owned by the caller, so they return
std::unique_ptr now.
The call can fail, so the return is wrapped in ErrorOr.
They have a context where to report diagnostics, so they don't need to
take a string out parameter.
With this there are no call to getGlobalContext in lib/LTO.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254721
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Tim Northover [Fri, 4 Dec 2015 16:10:48 +0000 (16:10 +0000)]
ARM/AArch64: update reference documentation.
There's a more comprehensive ACLE and a real v8 ARM ARM now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254720
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Colin LeMahieu [Fri, 4 Dec 2015 15:48:45 +0000 (15:48 +0000)]
[Hexagon] Using multiply instead of shift on signed number which can be UB
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254719
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Jonas Paulsson [Fri, 4 Dec 2015 12:48:51 +0000 (12:48 +0000)]
[SystemZ] Bugfix: Don't add CC twice to new three-address instruction.
Since BuildMI() automatically adds the implicit operands for a new instruction,
adding the old instructions CC operand resulted in that there were two CC imp-def
operands, where only one was marked as dead. This caused buildSchedGraph() to
miss dependencies on the CC reg.
Review by Ulrich Weigand
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254714
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Alexey Bataev [Fri, 4 Dec 2015 10:53:15 +0000 (10:53 +0000)]
LEA code size optimization pass (Part 1): Remove redundant address recalculations, by Andrey Turetsky
Add new x86 pass which replaces address calculations in load or store instructions with def register of existing LEA (must be in the same basic block), if the LEA calculates address that differs only by a displacement. Works only with -Os or -Oz.
Differential Revision: http://reviews.llvm.org/D13294
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254712
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Oliver Stannard [Fri, 4 Dec 2015 09:45:18 +0000 (09:45 +0000)]
[AArch64] Clean up statistical profiling test
This check has nothing to do with the statistical profiling extension, so
shouldn't be in this test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254709
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Yury Gribov [Fri, 4 Dec 2015 09:19:14 +0000 (09:19 +0000)]
[asan] Fix dynamic allocas unpoisoning on PowerPC64.
For PowerPC64 we cannot just pass SP extracted from @llvm.stackrestore to
_asan_allocas_unpoison due to specific ABI requirements
(http://refspecs.linuxfoundation.org/ELF/ppc64/PPC-elf64abi.html#DYNAM-STACK).
This patch adds the value returned by @llvm.get.dynamic.area.offset to
extracted from @llvm.stackrestore stack pointer, so dynamic allocas unpoisoning
stuff would work correctly on PowerPC64.
Patch by Max Ostapenko.
Differential Revision: http://reviews.llvm.org/D15108
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254707
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Rafael Espindola [Fri, 4 Dec 2015 04:15:05 +0000 (04:15 +0000)]
Revert "[BranchFolding] Merge MMOs during tail merge"
This reverts commit r254694.
It broke bootstrap.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254700
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Rafael Espindola [Fri, 4 Dec 2015 02:42:28 +0000 (02:42 +0000)]
Move a call to getGlobalContext out of lib/LTO.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254696
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Lang Hames [Fri, 4 Dec 2015 02:32:32 +0000 (02:32 +0000)]
[Orc] Fix Kaleidoscope example for change in r254693.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254695
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Junmo Park [Fri, 4 Dec 2015 02:29:25 +0000 (02:29 +0000)]
[BranchFolding] Merge MMOs during tail merge
Summary:
If we remove the MMOs from Load/Store instructions,
they are treated as volatile. This makes other optimization passes unhappy.
eg. Load/Store Optimization
So, it looks better to merge, not remove.
Reviewers: gberry, mcrosier
Subscribers: gberry, llvm-commits
Differential Revision: http://reviews.llvm.org/D14797
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254694
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Lang Hames [Fri, 4 Dec 2015 02:15:39 +0000 (02:15 +0000)]
[Orc] Rename JITCompileCallbackManagerBase to JITCompileCallbackManager.
This class is turning into a useful interface, rather than an implementation
detail, so I'm dropping the 'Base' suffix.
No functional change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254693
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Justin Bogner [Fri, 4 Dec 2015 02:14:34 +0000 (02:14 +0000)]
IR: Use format_hex instead of handrolling the conversion. NFC
Cleans up some very old code in AsmWriter's WriteConstantInternal.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254688
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Nathan Slingerland [Fri, 4 Dec 2015 02:13:58 +0000 (02:13 +0000)]
Revert "[llvm-profdata] Add support for weighted merge of profile data"
This reverts commit
b7250858d96b8ce567681214273ac0e62713c661.
Reverting in order to investigate Windows test failure.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254687
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Junmo Park [Fri, 4 Dec 2015 02:06:59 +0000 (02:06 +0000)]
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254686
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NAKAMURA Takumi [Fri, 4 Dec 2015 02:00:12 +0000 (02:00 +0000)]
Move llvm/test/CodeGen/Generic/function-alias.ll to X86. It is incompatible to PECOFF.
FIXME: It may be ELF-generic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254685
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Quentin Colombet [Fri, 4 Dec 2015 01:53:14 +0000 (01:53 +0000)]
[ARM] When a bitcast is about to be turned into a VMOVDRR, try to combine it
with its source instead of forcing the values on GPRs.
This improves the lowering of vector code when such bitcasts happen in the
middle of vector computations.
rdar://problem/
23691584
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254684
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Matthias Braun [Fri, 4 Dec 2015 01:51:19 +0000 (01:51 +0000)]
ScheduleDAGInstrs: Rework schedule graph builder.
Re-comitting with a change that avoids undefined uses getting put into
the VRegUses list.
The new algorithm remembers the uses encountered while walking backwards
until a matching def is found. Contrary to the previous version this:
- Works without LiveIntervals being available
- Allows to increase the precision to subregisters/lanemasks
(not used for now)
The changes in the AMDGPU tests are necessary because the R600 scheduler
is not stable with respect to the order of nodes in the ready queues.
Differential Revision: http://reviews.llvm.org/D9068
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254683
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Matthias Braun [Fri, 4 Dec 2015 01:31:59 +0000 (01:31 +0000)]
raw_ostream: << operator for callables with raw_ostream argument
This is a revised version of r254655 which uses a Printable wrapper
class to avoid ambiguous overload problems.
Differential Revision: http://reviews.llvm.org/D14348
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254681
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JF Bastien [Fri, 4 Dec 2015 01:18:17 +0000 (01:18 +0000)]
X86InstrInfo::copyPhysReg: workaround reg liveness
Summary:
computeRegisterLiveness and analyzePhysReg are currently getting
confused about liveness in some cases, breaking copyPhysReg's
calculation of whether AX is dead in some cases. Work around this issue
temporarily by assuming that AX is always live.
See detail in: https://llvm.org/bugs/show_bug.cgi?id=25033#c7
And associated bugs PR24535 PR25033 PR24991 PR24992 PR25201.
This workaround makes the code correct but slightly inefficient, but it
seems to confuse the machine instr verifier which now things EAX was
undefined in some cases where it's being conservatively saved /
restored.
Reviewers: majnemer, sanjoy
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D15198
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254680
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Justin Bogner [Fri, 4 Dec 2015 01:14:24 +0000 (01:14 +0000)]
IR: Update a comment and a bool that've been out of date since 2012
It became impossible to get here with a half in r157393, over 3 years
ago.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254679
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Xinliang David Li [Fri, 4 Dec 2015 01:02:10 +0000 (01:02 +0000)]
[PGO] Unify VP data format between raw and indexed profile (Reader)
With the latest refactoring and code sharing patches landed,
it is possible to unify the value profile implementation between
raw and indexed profile. This is the patch in raw profile reader
that uses the common interface.
Differential Revision: http://reviews.llvm.org/D15056
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254677
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Evgeniy Stepanov [Fri, 4 Dec 2015 00:57:25 +0000 (00:57 +0000)]
Fix function-alias.ll test on non-X86 targets.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254676
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Rafael Espindola [Fri, 4 Dec 2015 00:45:57 +0000 (00:45 +0000)]
Simplify the error handling in llvm-lto a bit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254675
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Evgeniy Stepanov [Fri, 4 Dec 2015 00:45:43 +0000 (00:45 +0000)]
Emit function alias to data as a function symbol.
CFI emits jump slots for indirect functions as a byte array
constant, and declares function-typed aliases to these constants.
This change fixes AsmPrinter to emit these aliases as function
symbols and not data symbols.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254674
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Cong Hou [Fri, 4 Dec 2015 00:36:58 +0000 (00:36 +0000)]
Don't punish vectorized arithmetic instruction whose type will be split to multiple registers
Currently in LLVM's cost model, a vectorized arithmetic instruction will have
high cost if its type is split into multiple registers. However, this
punishment is too heavy and unnecessary. The overhead of the split should not
be on arithmetic instructions but instructions that implement the split. Note
that during vectorization we have calculated the register pressure, and we
only choose proper interleaving factor (and also vectorization factor) so
that we don't use more registers than the maximum number.
Here is a very simple example: if a vadd has the cost 1, and if we double VF
so that we need two registers to perform it, then its cost will become 4 with
the current implementation, which will prevent us to use larger VF.
Differential revision: http://reviews.llvm.org/D15159
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254671
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Nathan Slingerland [Fri, 4 Dec 2015 00:00:20 +0000 (00:00 +0000)]
[llvm-profdata] Add support for weighted merge of profile data
This change adds support for an optional weight when merging profile data with the llvm-profdata tool.
Weights are specified by adding an option ':<weight>' suffix to the input file names.
Adding support for arbitrary weighting of input profile data allows for relative importance to be placed on the
input data from multiple training runs.
Both sampled and instrumented profiles are supported.
Reviewers: dnovillo, bogner, davidxl
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D14547
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254669
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Kevin B. Smith [Fri, 4 Dec 2015 00:00:10 +0000 (00:00 +0000)]
[CodeGen] Minor correction to comment on PhysRegInfo.
Differential revision: http://reviews.llvm.org/D15216
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254668
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Rafael Espindola [Thu, 3 Dec 2015 23:56:42 +0000 (23:56 +0000)]
Simplify since this function never fails.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254667
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JF Bastien [Thu, 3 Dec 2015 23:43:56 +0000 (23:43 +0000)]
CodeGen peephole: fold redundant phys reg copies
Code generation often exposes redundant physical register copies through
virtual registers such as:
%vreg = COPY %PHYSREG
...
%PHYSREG = COPY %vreg
There are cases where no intervening clobber of %PHYSREG occurs, and the
later copy could therefore be removed. In some cases this further allows
us to remove the initial copy.
This patch contains a motivating example which comes from the x86 build
of Chrome, specifically cc::ResourceProvider::UnlockForRead uses
libstdc++'s implementation of hash_map. That example has two tests live
at the same time, and after machine sinking LLVM has confused itself
enough and things spilling EFLAGS is a great idea even though it's
never restored and the comparison results are both live.
Before this patch we have:
DEC32m %RIP, 1, %noreg, <ga:@L>, %noreg, %EFLAGS<imp-def>
%vreg1<def> = COPY %EFLAGS; GR64:%vreg1
%EFLAGS<def> = COPY %vreg1; GR64:%vreg1
JNE_1 <BB#1>, %EFLAGS<imp-use>
Both copies are useless. This patch tries to eliminate the later copy in
a generic manner.
dec is especially confusing to LLVM when compared with sub.
I wrote this patch to treat all physical registers generically, but only
remove redundant copies of non-allocatable physical registers because
the allocatable ones caused issues (e.g. when calling conventions weren't
properly modeled) and should be handled later by the register allocator
anyways.
The following tests used to failed when the patch also replaced allocatable
registers:
CodeGen/X86/StackColoring.ll
CodeGen/X86/avx512-calling-conv.ll
CodeGen/X86/copy-propagation.ll
CodeGen/X86/inline-asm-fpstack.ll
CodeGen/X86/musttail-varargs.ll
CodeGen/X86/pop-stack-cleanup.ll
CodeGen/X86/preserve_mostcc64.ll
CodeGen/X86/tailcallstack64.ll
CodeGen/X86/this-return-64.ll
This happens because COPY has other special meaning for e.g. dependency
breakage and x87 FP stack.
Note that all other backends' tests pass.
Reviewers: qcolombet
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D15157
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254665
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Justin Bogner [Thu, 3 Dec 2015 23:28:35 +0000 (23:28 +0000)]
AsmPrinter: Simplify emitting FP elements in sequential data. NFC
Use APFloat APIs here Rather than manually type-punning through
unions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254664
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Dan Gohman [Thu, 3 Dec 2015 23:07:03 +0000 (23:07 +0000)]
[WebAssembly] Fix dominance check for PHIs in the StoreResult pass
When a block has no terminator instructions, getFirstTerminator() returns
end(), which can't be used in dominance checks. Check dominance for phi
operands separately.
Also, remove some bits from WebAssemblyRegStackify.cpp that were causing
trouble on the same testcase; they were left behind from an earlier
experiment.
Differential Revision: http://reviews.llvm.org/D15210
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254662
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Matthias Braun [Thu, 3 Dec 2015 23:00:28 +0000 (23:00 +0000)]
Revert "raw_ostream: << operator for callables with raw_stream argument"
This commit provoked "error C2593: 'operator <<' is ambiguous" on MSVC.
This reverts commit r254655.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254661
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Chris Bieneman [Thu, 3 Dec 2015 22:55:36 +0000 (22:55 +0000)]
[CMake] Fixing bots
CMake calls to set_property with APPEND string need to have a leading space.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254659
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Chris Bieneman [Thu, 3 Dec 2015 22:51:08 +0000 (22:51 +0000)]
[CMake] set_target_properties doesn't append link flags
This fixes a bug introduced in r254627, and another occurance of the same bug in this file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254657
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David Majnemer [Thu, 3 Dec 2015 22:45:19 +0000 (22:45 +0000)]
[Analysis] Become aware of MSVC's new/delete functions
The compiler can take advantage of the allocation/deallocation
function's properties. We knew how to do this for Itanium but had no
support for MSVC-style functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254656
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Matthias Braun [Thu, 3 Dec 2015 22:17:26 +0000 (22:17 +0000)]
raw_ostream: << operator for callables with raw_stream argument
This allows easier construction of print helpers. Example:
Printable PrintLaneMask(unsigned LaneMask) {
return Printable([LaneMask](raw_ostream &OS) {
OS << format("%08X", LaneMask);
});
}
// Usage:
OS << PrintLaneMask(Mask);
Differential Revision: http://reviews.llvm.org/D14348
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254655
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Davide Italiano [Thu, 3 Dec 2015 22:13:40 +0000 (22:13 +0000)]
[llvm-objdump] Use report_fatal_error() if we can't find a target.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254654
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Chih-Hung Hsieh [Thu, 3 Dec 2015 22:02:40 +0000 (22:02 +0000)]
[X86] Part 1 to fix x86-64 fp128 calling convention.
Almost all these changes are conditioned and only apply to the new
x86-64 f128 type configuration, which will be enabled in a follow up
patch. They are required together to make new f128 work. If there is
any error, we should fix or revert them as a whole.
These changes should have no impact to current configurations.
* Relax type legalization checks to accept new f128 type configuration,
whose TypeAction is TypeSoftenFloat, not TypeLegal, but also has
TLI.isTypeLegal true.
* Relax GetSoftenedFloat to return in some cases f128 type SDValue,
which is TLI.isTypeLegal but not "softened" to i128 node.
* Allow customized FABS, FNEG, FCOPYSIGN on new f128 type configuration,
to generate optimized bitwise operators for libm functions.
* Enhance related Lower* functions to handle f128 type.
* Enhance DAGTypeLegalizer::run, SoftenFloatResult, and related functions
to keep new f128 type in register, and convert f128 operators to library calls.
* Fix Combiner, Emitter, Legalizer routines that did not handle f128 type.
* Add ExpandConstant to handle i128 constants, ExpandNode
to handle ISD::Constant node.
* Add one more parameter to getCommonSubClass and firstCommonClass,
to guarantee that returned common sub class will contain the specified
simple value type.
This extra parameter is used by EmitCopyFromReg in InstrEmitter.cpp.
* Fix infinite loop in getTypeLegalizationCost when f128 is the value type.
* Fix printOperand to handle null operand.
* Enhance ISD::BITCAST node to handle f128 constant.
* Expand new f128 type for BR_CC, SELECT_CC, SELECT, SETCC nodes.
* Enhance X86AsmPrinter to emit f128 values in comments.
Differential Revision: http://reviews.llvm.org/D15134
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254653
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Colin LeMahieu [Thu, 3 Dec 2015 21:44:28 +0000 (21:44 +0000)]
[Hexagon] Adding shuffling resources for HVX instructions and tests for instruction encodings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254652
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Keno Fischer [Thu, 3 Dec 2015 21:27:59 +0000 (21:27 +0000)]
[RuntimeDyld] DenseMap -> std::unordered_map
DenseMap is most applicable when both keys and values are small.
In this case, the value violates that assumption, causing quite
significant memory overhead. A std::unordered_map is more appropriate
in this case (or at least fixed the memory problems I was seeing).
Differential Revision: http://reviews.llvm.org/D14910
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254651
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Easwaran Raman [Thu, 3 Dec 2015 20:57:37 +0000 (20:57 +0000)]
Interface to attach maximum function count from PGO to module as module flags.
This provides interface to get and set maximum function counts to Module. This
would allow things like determination of function hotness. The actual setting
of this max function count will have to be done in the frontend.
Differential Revision: http://reviews.llvm.org/D15003
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254647
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Reid Kleckner [Thu, 3 Dec 2015 20:46:59 +0000 (20:46 +0000)]
[X86] Put no-op ADJCALLSTACK markers around all dynamic lowerings
Summary:
These ADJCALLSTACK markers don't generate code, but they keep dynamic
alloca code that calls chkstk out of the prologue.
This slightly pessimizes inalloca calls by preventing some register copy
coalescing, but I can live with that.
Reviewers: qcolombet
Subscribers: hans, llvm-commits
Differential Revision: http://reviews.llvm.org/D15200
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254645
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Chris Bieneman [Thu, 3 Dec 2015 19:47:04 +0000 (19:47 +0000)]
[CMake] Removing an unnecessary layer of variable indirection
This prevents passthrough variables from having values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254641
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Andrew Kaylor [Thu, 3 Dec 2015 19:41:25 +0000 (19:41 +0000)]
Move branch folding test to a better location.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254640
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Andrew Kaylor [Thu, 3 Dec 2015 19:30:38 +0000 (19:30 +0000)]
Fix buildbot failures
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254636
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Rafael Espindola [Thu, 3 Dec 2015 19:10:55 +0000 (19:10 +0000)]
Simplify test. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254631
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Easwaran Raman [Thu, 3 Dec 2015 19:03:20 +0000 (19:03 +0000)]
Test commit.
Remove blank spaces at the end of comments
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254630
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Andrew Kaylor [Thu, 3 Dec 2015 18:55:28 +0000 (18:55 +0000)]
[WinEH] Avoid infinite loop in BranchFolding for multiple single block funclets
Differential Revision: http://reviews.llvm.org/D14996
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254629
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Chris Bieneman [Thu, 3 Dec 2015 18:45:39 +0000 (18:45 +0000)]
[CMake] Add option LLVM_EXTERNALIZE_DEBUGINFO
Summary: This adds support for generating dSYM files and stripping debug info from executables and dylibs. It also supports passing -object_path_lto to the linker to generate dSYMs for LTO builds.
Reviewers: bogner, friss
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D15133
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254627
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David Blaikie [Thu, 3 Dec 2015 18:41:59 +0000 (18:41 +0000)]
dwarfdump: Correctly indentify the indicies for DWP records
The indicies are one-based, not zero-based, per the spec.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254626
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Teresa Johnson [Thu, 3 Dec 2015 18:20:05 +0000 (18:20 +0000)]
[ThinLTO] Appending linkage fixes
Summary:
Fix import from module with appending var, which cannot be imported. The
first fix is to remove an overly-aggressive error check.
The second fix is to deal with restructuring introduced to the module
linker yesterday in r254418 (actually, this fix was included already
in r254559, just added some additional cleanup).
Test by Mehdi Amini.
Reviewers: joker.eph, rafael
Subscribers: joker.eph, llvm-commits
Differential Revision: http://reviews.llvm.org/D15156
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254624
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