Commit Graph

301423 Commits

Author SHA1 Message Date
Sam McCall 2c30fbcac5 [clangd] Lay JSONRPCDispatcher to rest.
Summary:
Most of its functionality is moved into ClangdLSPServer.
The decoupling between JSONRPCDispatcher, ProtocolCallbacks, ClangdLSPServer
was never real, and only served to obfuscate.

Some previous implicit/magic stuff is now explicit:
 - the return type of LSP method calls are now in the signature
 - no more reply() that gets the ID using global context magic
 - arg tracing no longer relies on RequestArgs::stash context magic either

This is mostly refactoring, but some deliberate fixes while here:
 - LSP method params are now by const reference
 - notifications and calls are now distinct namespaces.
   (some tests had protocol errors and needed updating)
 - we now reply to calls we failed to decode
 - outgoing calls use distinct IDs
A few error codes and message IDs changed in unimportant ways (see tests).

Reviewers: ioeric

Subscribers: mgorny, ilya-biryukov, javed.absar, MaskRay, jkorous, arphaman, jfb, kadircet, cfe-commits

Differential Revision: https://reviews.llvm.org/D53387

llvm-svn: 344737
2018-10-18 12:32:04 +00:00
Eric Liu 4859738cfe [clangd] Names that are not spelled in source code are reserved.
Summary:
These are often not expected to be used directly e.g.
```
TEST_F(Fixture, X) {
  ^  // "Fixture_X_Test" expanded in the macro should be down ranked.
}
```

Only doing this for sema for now, as such symbols are mostly coming from sema
e.g. gtest macros expanded in the main file. We could also add a similar field
for the index symbol.

Reviewers: sammccall

Reviewed By: sammccall

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, cfe-commits

Differential Revision: https://reviews.llvm.org/D53374

llvm-svn: 344736
2018-10-18 12:23:05 +00:00
Haojian Wu b515fabb3b [clangd] Encode Line/Column as a 32-bits integer.
Summary:
This would buy us more memory. Using a 32-bits integer is enough for
most human-readable source code (up to 4M lines and 4K columns).

Previsouly, we used 8 bytes for a position, now 4 bytes, it would save
us 8 bytes for each Ref and each Symbol instance.

For LLVM-project binary index file, we save ~13% memory.

| Before | After |
| 412MB  | 355MB |

Reviewers: sammccall

Subscribers: ilya-biryukov, ioeric, MaskRay, jkorous, arphaman, kadircet, cfe-commits

Differential Revision: https://reviews.llvm.org/D53363

llvm-svn: 344735
2018-10-18 10:43:50 +00:00
Nicolai Haehnle 59041687be [DA] DivergenceAnalysis for unstructured, reducible CFGs
Summary:
This is patch 2 of the new DivergenceAnalysis (https://reviews.llvm.org/D50433).

This patch contains a generic divergence analysis implementation for
unstructured, reducible Control-Flow Graphs. It contains two new classes.
The `SyncDependenceAnalysis` class lazily computes sync dependences, which
relate divergent branches to points of joining divergent control. The
`DivergenceAnalysis` class contains the generic divergence analysis
implementation.

Reviewers: nhaehnle

Reviewed By: nhaehnle

Subscribers: sameerds, kristina, nhaehnle, xbolva00, tschuett, mgorny, llvm-commits

Differential Revision: https://reviews.llvm.org/D51491

llvm-svn: 344734
2018-10-18 09:38:44 +00:00
Haojian Wu 547f89d607 [clang-tidy] Ignore a case where the fix of make_unique check introduces side effect.
Summary:
Previously, ptr.reset(new char[5]) will be replaced with `p =
make_unique<char[]>(5)`, the fix has side effect -- doing
default initialization, it may cause performace regression (we are
bitten by this rececntly)

The check should be conservative for these cases.

Reviewers: alexfh

Subscribers: xazax.hun, cfe-commits

Differential Revision: https://reviews.llvm.org/D53377

llvm-svn: 344733
2018-10-18 09:13:34 +00:00
Sam McCall 5ee0188f2b [Support] json::Value construction from std::vector<T> and std::map<string,T>.
Summary: Previously this required a conversion to json::Array/json::Object first.

Reviewers: ioeric

Subscribers: kristina, llvm-commits

Differential Revision: https://reviews.llvm.org/D53385

llvm-svn: 344732
2018-10-18 08:47:24 +00:00
Guillaume Chatelet 6a208e8c5f [llvm-exegesis] Fix off by one error
llvm-svn: 344731
2018-10-18 08:20:50 +00:00
Chandler Carruth 4aaaaabe87 [TI removal] Test predicate rather than casting to detect a terminator
and use the range based successor API.

llvm-svn: 344730
2018-10-18 08:16:20 +00:00
Aleksandr Urakov 64c92df7cb [Windows] Fix threads comparison on Windows
Summary:
This patch makes Windows threads to compare by a thread ID, not by a handle.
It's because the same thread can have different handles on Windows
(for example, `GetCurrentThread` always returns the fake handle `-2`).
This leads to some incorrect behavior. For example, in `Process::GetRunLock`
always `m_public_run_lock` is returned without this patch.

Reviewers: zturner, clayborg, stella.stamenova

Reviewed By: stella.stamenova

Subscribers: stella.stamenova, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D53357

llvm-svn: 344729
2018-10-18 07:52:56 +00:00
Chandler Carruth 11b89c56cc [TI removal] Generically discuss terminators rather than use the soon to
vanish subclass name.

llvm-svn: 344728
2018-10-18 07:43:30 +00:00
Chandler Carruth 7d832f3650 [TI removal] Remove discussion of `TerminatorInst` from the LLVM
documentation.

llvm-svn: 344727
2018-10-18 07:40:24 +00:00
Chandler Carruth 11add31341 [TI removal] Remove TerminatorInst references from bindings.
For the Go bindings, this just removes the no longer useful "isa"-style
wrapper. If there is a user that is interested, they can add a wrapper
for `Instruction::isTerminator`.

For the OCaml bindings, this is just a documentation update.

llvm-svn: 344726
2018-10-18 07:40:03 +00:00
Mikael Holmen e3605d0f70 Add a emitUnaryFloatFnCall version that fetches the function name from TLI
Summary:
In several places in the code we use the following pattern:

  if (hasUnaryFloatFn(&TLI, Ty, LibFunc_tan, LibFunc_tanf, LibFunc_tanl)) {
    [...]
    Value *Res = emitUnaryFloatFnCall(X, TLI.getName(LibFunc_tan), B, Attrs);
    [...]
  }

In short, we check if there is a lib-function for a certain type, and then
we _always_ fetch the name of the "double" version of the lib function and
construct a call to the appropriate function, that we just checked exists,
using that "double" name as a basis.

This is of course a problem in cases where the target doesn't support the
"double" version, but e.g. only the "float" version.

In that case TLI.getName(LibFunc_tan) returns "", and
emitUnaryFloatFnCall happily appends an "f" to "", and we erroneously end
up with a call to a function called "f".

To solve this, the above pattern is changed to

  if (hasUnaryFloatFn(&TLI, Ty, LibFunc_tan, LibFunc_tanf, LibFunc_tanl)) {
    [...]
    Value *Res = emitUnaryFloatFnCall(X, &TLI, LibFunc_tan, LibFunc_tanf,
                                      LibFunc_tanl, B, Attrs);
    [...]
  }

I.e instead of first fetching the name of the "double" version and then
letting emitUnaryFloatFnCall() add the final "f" or "l", we let
emitUnaryFloatFnCall() fetch the right name from TLI.

Reviewers: eli.friedman, efriedma

Reviewed By: efriedma

Subscribers: efriedma, bjope, llvm-commits

Differential Revision: https://reviews.llvm.org/D53370

llvm-svn: 344725
2018-10-18 06:27:53 +00:00
Mikael Holmen fa41add2e5 Fix warning about unused variable [NFC]
llvm-svn: 344724
2018-10-18 06:00:39 +00:00
Kristina Brooks 312fcc116b [X86] Support for the mno-tls-direct-seg-refs flag
Allows to disable direct TLS segment access (%fs or %gs). GCC supports
a similar flag, it can be useful in some circumstances, e.g. when a thread
context block needs to be updated directly from user space. More info
and specific use cases: https://bugs.llvm.org/show_bug.cgi?id=16145

There is another revision for clang as well.
Related: D53102

All X86 CodeGen tests appear to pass:
```
[46/47] Running lit suite /SourceCache/llvm-trunk-8.0/test/CodeGen
Testing Time: 23.17s
  Expected Passes    : 3801
  Expected Failures  : 15
  Unsupported Tests  : 8021
```

Reviewed by: Craig Topper.

Patch by nruslan (Ruslan Nikolaev).

Differential Revision: https://reviews.llvm.org/D53103

llvm-svn: 344723
2018-10-18 03:14:37 +00:00
Krasimir Georgiev a35912da9f Revert "Return a named error in the result object of an expression with no result"
This reverts commit r344647.
This causes build failures with [-Werror, -Wswitch]. Some cases where the newly
introduced enum value is not handled in particular are in:
  lldb/source/Expression/REPL.cpp:350
  lldb/source/Interpreter/CommandInterpreter.cpp:1529
(maybe there could be more)

As I don't understand lldb to make sure the likely trivial fixes are
correct and also as they might need additional tests, leaving to the
author to resolve.

llvm-svn: 344722
2018-10-18 03:10:43 +00:00
Krasimir Georgiev 11bc3a18e2 [llvm-exegesis] Mark destructor virtual after r344695
This was causing a -Wnon-virtual-dtor warning.

llvm-svn: 344721
2018-10-18 02:06:16 +00:00
Lang Hames 33a2f5e8dd [BuildingAJIT] Update the Ch1 KaleidoscopeJIT class to expose errors to clients.
Returning the error to clients provides an opportunity to introduce readers to
the Expected and Error APIs and makes the tutorial more useful as a starting
point for a real JIT class, while only slightly complicating the code.

llvm-svn: 344720
2018-10-18 00:51:38 +00:00
Chandler Carruth 60b2e054dc [TI removal] Switch simple loop unswitch to `Instruction`.
llvm-svn: 344719
2018-10-18 00:40:26 +00:00
Chandler Carruth c6cad4251e [TI removal] Switch NewGVN to directly use `Instruction`.
llvm-svn: 344718
2018-10-18 00:39:46 +00:00
Chandler Carruth c8eaea71c9 [TI removal] Use `Instruction` instead of `TerminatorInst` for
a variable's type.

llvm-svn: 344717
2018-10-18 00:39:18 +00:00
Chandler Carruth 8b7a8123dd [TI removal] Update CodeExtractor to use Instruction directly.
llvm-svn: 344716
2018-10-18 00:38:54 +00:00
Chandler Carruth c1e3ee29a4 [TI removal] Switch ObjCARC code to directly use the nice range-based
successors API or directly build the iterators out of the terminator
instruction and avoid requiring a TerminatorInst variable.

llvm-svn: 344715
2018-10-18 00:38:34 +00:00
Chandler Carruth 93cf2ea27a [TI removal] Switch MergeFunctions to directly use Instruction API.
llvm-svn: 344714
2018-10-18 00:37:37 +00:00
Chandler Carruth 9871662e24 [TI removal] Switch an analysis to just use Instruction.
llvm-svn: 344713
2018-10-18 00:36:15 +00:00
Lang Hames 5d4a12df13 [BuildingAJIT] Simplify a tutorial example and fix a syntax error.
llvm-svn: 344712
2018-10-17 22:27:09 +00:00
Konstantin Zhuravlyov 7122595f81 AMDGPU: Add options to enable/disable code object v3
Differential Revision: https://reviews.llvm.org/D53386

llvm-svn: 344711
2018-10-17 21:39:12 +00:00
Eli Friedman 39ceea326d [AArch64] Define __ELF__ for aarch64-none-elf and other similar triples.
"aarch64-none-elf" is commonly used for AArch64 baremetal toolchains.

Differential Revision: https://reviews.llvm.org/D53348

llvm-svn: 344710
2018-10-17 21:07:11 +00:00
Julie Hockett bf445b87de [clang-doc] Bringing bitcode tests in line
Makes bitcode tests line up with what's actually called in the tool.
Should fix the failing bot.

Also fixes a warning that was being thrown about initialization braces.

Differential Revision: https://reviews.llvm.org/D53381

llvm-svn: 344707
2018-10-17 20:16:05 +00:00
Lang Hames d2d73ba995 [BuildingAJIT] Fix a function signature in the documentation.
llvm-svn: 344705
2018-10-17 19:35:38 +00:00
Pavel Labath f4c1582476 Port libcxxabi r344607 into llvm
Summary:
The original commit message was:
    This uses CRTP (for performance reasons) to allow a user the override
    demangler functions to implement custom parsing logic. The motivation
    for this is LLDB, which needs to occasionaly modify the mangled names.
    One such instance is already implemented via the TypeCallback member,
    but this is very specific functionality which does not help with any
    other use case. Currently we have a use case for modifying the
    constructor flavours, which would require adding another callback. This
    approach does not scale.

    With CRTP, the user (LLDB) can override any function it needs without
    any special support from the demangler library. After LLDB is ported to
    use this instead of the TypeCallback mechanism, the callback can be
    removed.

The only difference here is the addition of a unit test which exercises
the CRTP mechanism to override a function in the parser.

Reviewers: erik.pilkington, rsmith, EricWF

Subscribers: mgorny, kristina, llvm-commits

Differential Revision: https://reviews.llvm.org/D53300

llvm-svn: 344703
2018-10-17 18:50:25 +00:00
Leonard Chan 40968955ff Fix for arm bots afternew PM pass port. Prevent cross compiling on arm.
llvm-svn: 344702
2018-10-17 18:12:18 +00:00
Leonard Chan 4dd72fa4f6 Fix for failing unit tests on some bots after r344696.
llvm-svn: 344701
2018-10-17 16:21:19 +00:00
Louis Dionne e365157ba3 [libcxx] Improve reporting when running the lit test suite
Summary:
Running the test suite with -a will now properly show all the executed
commands. The reports also include the environment under which the test
is being executed, which is helpful for reproducing issues.

Reviewers: EricWF

Subscribers: christof, dexonsmith, libcxx-commits

Differential Revision: https://reviews.llvm.org/D53215

llvm-svn: 344700
2018-10-17 16:12:04 +00:00
Leonard Chan ebd10a24f4 [PassManager/Sanitizer] Enable usage of ported AddressSanitizer passes with -fsanitize=address
Enable usage of `AddressSanitizer` and `AddressModuleSanitizer` ported from the
legacy to the new PassManager.

This patch depends on https://reviews.llvm.org/D52739.

Differential Revision: https://reviews.llvm.org/D52814

llvm-svn: 344699
2018-10-17 15:38:22 +00:00
Nicolai Haehnle 4821937d2e AMDGPU: Avoid selecting ds_{read,write}2_b32 on SI
Summary:
To workaround a hardware issue in the (base + offset) calculation
when base is negative. The impact on code quality should be limited
since SILoadStoreOptimizer still runs afterwards and is able to
combine loads/stores based on known sign information.

This fixes visible corruption in Hitman on SI (easily reproducible
by running benchmark mode).

Change-Id: Ia178d207a5e2ac38ae7cd98b532ea2ae74704e5f
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=99923

Reviewers: arsenm, mareko

Subscribers: jholewinski, kzhuravl, jvesely, wdng, yaxunl, dstuttard, tpr, t-tye, llvm-commits

Differential Revision: https://reviews.llvm.org/D53160

llvm-svn: 344698
2018-10-17 15:37:48 +00:00
Nicolai Haehnle 0823050b9f StructurizeCFG: Simplify inserted PHI nodes
Summary:
This improves subsequent divergence analysis in some cases.

Change-Id: I5e95e7ec7fd3fa80d414d1a53a02fea23e3d67d3

Reviewers: arsenm, rampitec

Subscribers: jvesely, wdng, llvm-commits

Differential Revision: https://reviews.llvm.org/D53316

llvm-svn: 344697
2018-10-17 15:37:41 +00:00
Nicolai Haehnle c4a2ff0950 AMDGPU: Divergence-driven selection of scalar buffer load intrinsics
Summary:
Moving SMRD to VMEM in SIFixSGPRCopies is rather bad for performance if
the load is really uniform. So select the scalar load intrinsics directly
to either VMEM or SMRD buffer loads based on divergence analysis.

If an offset happens to end up in a VGPR -- either because a floating
point calculation was involved, or due to other remaining deficiencies
in SIFixSGPRCopies -- we use v_readfirstlane.

There is some unrelated churn in tests since we now select MUBUF offsets
in a unified way with non-scalar buffer loads.

Change-Id: I170e6816323beb1348677b358c9d380865cd1a19

Reviewers: arsenm, alex-t, rampitec, tpr

Subscribers: kzhuravl, jvesely, wdng, yaxunl, dstuttard, t-tye, llvm-commits

Differential Revision: https://reviews.llvm.org/D53283

llvm-svn: 344696
2018-10-17 15:37:30 +00:00
Clement Courbet f973c2df9d [llvm-exegesis] Allow measuring several instructions in a single run.
Summary:
We try to recover gracefully on instructions that would crash the
program.

This includes some refactoring of runMeasurement() implementations.

Reviewers: gchatelet

Subscribers: tschuett, llvm-commits

Differential Revision: https://reviews.llvm.org/D53371

llvm-svn: 344695
2018-10-17 15:04:15 +00:00
Theodoros Theodoridis c0daf2a978 Fix broken formatting caused by test commit
llvm-svn: 344694
2018-10-17 15:01:18 +00:00
Sam Parker 2ef3c0dad6 [ARM] bottom-top mul support in ARMParallelDSP
Previously reverted in rL343082.

Original commit message:

On failing to find sequences that can be converted into dual macs,
try to find sequential 16-bit loads that are used by muls which we
can then use smultb, smulbt, smultt with a wide load.

Differential Revision: https://reviews.llvm.org/D51983

llvm-svn: 344693
2018-10-17 13:02:48 +00:00
Guillaume Chatelet 6f4bc17309 Fix uninitialized variable
llvm-svn: 344692
2018-10-17 12:27:46 +00:00
Nicolai Haehnle e9b134aa31 AMDGPU: Remove dead TableGen code
Summary: Change-Id: Ic1f2c1d0cf9e90a0baa9fc6bacd0d3c386069fb0

Reviewers: tpr

Subscribers: arsenm, kzhuravl, jvesely, wdng, yaxunl, dstuttard, t-tye, llvm-commits

Differential Revision: https://reviews.llvm.org/D53318

Change-Id: Ib4d143c898801e5cf6cb9999a495d62c91ae77fb
llvm-svn: 344691
2018-10-17 12:14:26 +00:00
Guillaume Chatelet 952b121a9c BuildBot fix, compiler complains about array decay to pointer
llvm-svn: 344690
2018-10-17 12:09:21 +00:00
Guillaume Chatelet fcbb6f3c2b [llvm-exegeis] Computing Latency configuration upfront so we can generate many CodeTemplates at once.
Summary: LatencyGenerator now computes all possible mode of serial execution for an Instruction upfront and generates CodeTemplate for the ones that give the best results (e.g. no need to generate a two instructions snippet when repeating a single one would do). The next step is to generate even more configurations for cases (e.g. for XOR we should generate "XOR EAX, EAX, EAX" and "XOR EAX, EAX, EBX")

Reviewers: courbet

Reviewed By: courbet

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D53320

llvm-svn: 344689
2018-10-17 11:37:28 +00:00
Eric Liu 3fac4ef1fd [clangd] Support scope proximity in code completion.
Summary:
This should make all-scope completion more usable. Scope proximity for
indexes will be added in followup patch.

Reviewers: sammccall

Reviewed By: sammccall

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, cfe-commits

Differential Revision: https://reviews.llvm.org/D53131

llvm-svn: 344688
2018-10-17 11:19:02 +00:00
Max Kazantsev e2566b5d87 [NFC] Remove GOTO from SCEV
llvm-svn: 344687
2018-10-17 11:16:25 +00:00
Fedor Sergeev 43c37fa42b [NewPM] Fixing test failure on Windows - removed opt binary name from pattern
llvm-svn: 344686
2018-10-17 11:01:15 +00:00
Fedor Sergeev bd6b2138b9 [NewPM] teach -passes= to emit meaningful error messages
All the PassBuilder::parse interfaces now return descriptive StringError
instead of a plain bool. It allows to make -passes/aa-pipeline parsing
errors context-specific and thus less confusing.

TODO: ideally we should also make suggestions for misspelled pass names,
but that requires some extensions to PassBuilder.

Reviewed By: philip.pfaffe, chandlerc
Differential Revision: https://reviews.llvm.org/D53246

llvm-svn: 344685
2018-10-17 10:36:23 +00:00
Petar Jovanovic 8a08412533 [MIPS GlobalISel] Legalize constants
Legalize s1, s8, s16 and s64 G_CONSTANT for MIPS32.

Patch by Petar Avramovic.

Differential Revision: https://reviews.llvm.org/D53077

llvm-svn: 344684
2018-10-17 10:30:03 +00:00