Commit Graph

280076 Commits

Author SHA1 Message Date
Matt Morehouse f113deaa3c [MSan] Enable use-after-dtor instrumentation by default.
Summary:
Enable the compile-time flag -fsanitize-memory-use-after-dtor by
default. Note that the run-time option MSAN_OPTIONS=poison_in_dtor=1
still needs to be enabled for destructors to be poisoned.

Reviewers: eugenis, vitalybuka, kcc

Reviewed By: eugenis, vitalybuka

Subscribers: cfe-commits, llvm-commits

Differential Revision: https://reviews.llvm.org/D37860

llvm-svn: 322221
2018-01-10 20:27:48 +00:00
Brian Gesiak 5b60198795 [Driver] Test for correct '--version' suggestion
Summary:
The `llvm::OptTable::findNearest` bug fixed in
https://reviews.llvm.org/D41873 manifested itself as the following
erroneous message when invoking Clang:

```
clang -version
clang-6.0: error: unknown argument '-version', did you mean 'version'?
```

Add a test to catch any future regressions to the now correct behavior,
which asks "did you mean '--version'?".

Test Plan: `check-clang`

Reviewers: v.g.vassilev, teemperor, ruiu, jroelofs, yamaguchi

Reviewed By: v.g.vassilev

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D41912

llvm-svn: 322220
2018-01-10 20:23:45 +00:00
Sam Clegg 8d027d6758 [WebAssembly] Optimize Writer::lookupType
Followup on https://reviews.llvm.org/D41894

llvm-svn: 322219
2018-01-10 20:12:26 +00:00
Alex Bradbury 70f137b6bf [RISCV] Add support for llvm.{frameaddress,returnaddress} intrinsics
llvm-svn: 322218
2018-01-10 20:12:00 +00:00
Alex Bradbury 9330e64485 [RISCV] Add basic support for inline asm constraints
llvm-svn: 322217
2018-01-10 20:05:09 +00:00
Alex Bradbury 9fea4881d0 [RISCV] Support stack frames and offsets up to 32-bits
Differential Revision: https://reviews.llvm.org/D40807

llvm-svn: 322216
2018-01-10 19:53:46 +00:00
Alex Bradbury c85be0de56 [RISCV] Support for varargs
Includes support for expanding va_copy. Also adds support for using 'aligned'
registers when necessary for vararg calls, and ensure the frame pointer always
points to the bottom of the vararg spill region. This is necessary to ensure
that the saved return address and stack pointer are always available at fixed
known offsets of the frame pointer.

Differential Revision: https://reviews.llvm.org/D40805

llvm-svn: 322215
2018-01-10 19:41:03 +00:00
Evgeniy Stepanov 29e3f5b722 [hwasan] An option to disable tag randomization.
Summary:
Avoid flaky test failures by by using a monotonic number sequence of
heap tags.

Does not affect stack tags: the way we generate those guarantees
uniqueness for at least 30-something first allocas in any function,
as well as the UAR tag.

Reviewers: alekseyshl, kcc

Subscribers: llvm-commits, kubamracek

Differential Revision: https://reviews.llvm.org/D41882

llvm-svn: 322214
2018-01-10 19:36:10 +00:00
Scott Linder 279cc1b5e2 Test commit access
llvm-svn: 322213
2018-01-10 19:27:20 +00:00
Sam Clegg d96d93576b [WebAssembly] Move relocation handling InputChunks.cpp
Teach each input chunk how to write itself and apply its
own relocations.

Differential Revision: https://reviews.llvm.org/D41891

llvm-svn: 322212
2018-01-10 19:22:42 +00:00
Sam Clegg c375e4e433 [WebAssembly] Add seperate Writer::lookupType and Writer::registerType. NFC
Differential Revision: https://reviews.llvm.org/D41894

llvm-svn: 322211
2018-01-10 19:18:22 +00:00
Craig Topper af4eb17223 [SelectionDAG][X86] Explicitly store the scale in the gather/scatter ISD nodes
Currently we infer the scale at isel time by analyzing whether the base is a constant 0 or not. If it is we assume scale is 1, else we take it from the element size of the pass thru or stored value. This seems a little weird and I think it makes more sense to make it explicit in the DAG rather than doing tricky things in the backend.

Most of this patch is just making sure we copy the scale around everywhere.

Differential Revision: https://reviews.llvm.org/D40055

llvm-svn: 322210
2018-01-10 19:16:05 +00:00
Eugene Zemtsov 4c3ea8029e Advanced guessing of rendezvous breakpoint
When rendezvous structure is not initialized we need to set up
rendezvous breakpoint anyway. In this case the code will locate
dynamic loader (interpreter) and look for known function names.

Bug: https://bugs.llvm.org/show_bug.cgi?id=25806
Differential Revision: https://reviews.llvm.org/D41533

llvm-svn: 322209
2018-01-10 19:04:36 +00:00
Davide Italiano 90d96aa107 [XCodebuild] Catch up with recent changes (Environment.cpp).
llvm-svn: 322208
2018-01-10 18:53:00 +00:00
Jessica Paquette c191f1097c [MachineOutliner] Outline ADRPs
ADRP instructions weren't being outlined because they're PC-relative and thus
fail the LR checks. This patch adds a special case for ADRPs to
getOutliningType to make sure that ADRPs can be outlined and updates the MIR
test.

llvm-svn: 322207
2018-01-10 18:49:57 +00:00
Sanjay Patel d04026ea43 [InstCombine] add test to show missed bswap; NFC
D41353 / D41233 are proposing to alter the shl/and canonicalization,
but I think that would just move an existing pattern-matching hole
to a different place.

llvm-svn: 322206
2018-01-10 18:47:21 +00:00
Jonathan Peyton 79390ad709 Force HWLOC topology method for NUMA-specific topology
If user requested affinity with granularity=tile we need to either use HWLOC
or ignore the request. The change allows user to not specify
KMP_TOPOLOGY_METHOD=hwloc and choose it automatically instead.

Patch by Andrey Churbanov

Differential Revision: https://reviews.llvm.org/D40905

llvm-svn: 322205
2018-01-10 18:31:49 +00:00
Jonathan Peyton 1800ecec70 Simplify __kmp_expand_threads
This change simplifies __kmp_expand_threads to take a single argument.
Previously, it allowed two arguments and had logic to decide on different
potential expansion sizes. However, no calls to __kmp_expand_threads in the
runtime make use of this extra logic. Thus the extra argument and logic is
removed here.

Patch by Terry Wilmarth

Differential Revision: https://reviews.llvm.org/D41836

llvm-svn: 322204
2018-01-10 18:27:01 +00:00
Jonathan Peyton bff8ded906 Minor code cleanup
Patch by Terry Wilmarth

Differential Revision: https://reviews.llvm.org/D41831

llvm-svn: 322203
2018-01-10 18:24:09 +00:00
Jonathan Peyton eaa9e40c9a Improve stability of the runtime in parent/child processes
This change improves stability of the runtime when the application forks child
processes.  Acquiring/releasing __kmp_initz_lock and __kmp_forkjoin_lock in the
atfork handlers insures that the actual fork does not occur while those two
locks are held, and __kmp_itt_reset() reverts the itt's global state to the
initial state which also initializes the mutex stored in the global state.
Some missing initialization code was also inserted in the child's atfork handler.

Patch by Hansang Bae

Differential Revision: https://reviews.llvm.org/D41462

llvm-svn: 322202
2018-01-10 18:21:48 +00:00
Peter Collingbourne 4566d827a1 libcxx: Stop providing a definition of __GLIBC_PREREQ.
An application may determine whether the C standard library is glibc
by testing whether __GLIBC_PREREQ is defined. This breaks if libc++
provides its own definition. Instead, define our own macro in our
namespace with the desired semantics.

Differential Revision: https://reviews.llvm.org/D41892

llvm-svn: 322201
2018-01-10 18:16:58 +00:00
Matthias Braun b42ffa1283 AArch64: Fix emergency spillslot being out of reach for large callframes
Large callframes (calls with several hundreds or thousands or
parameters) could lead to situations in which the emergency spillslot is
out of range to be addressed relative to the stack pointer.
This commit forces the use of a frame pointer in the presence of large
callframes.

This commit does several things:
- Compute max callframe size at the end of instruction selection.
- Add mirFileLoaded target callback. Use it to compute the max callframe size
  after loading a .mir file when the size wasn't specified in the file.
- Let TargetFrameLowering::hasFP() return true if there exists a
  callframe > 255 bytes.
- Always place the emergency spillslot close to FP if we have a frame
  pointer.
- Note that `useFPForScavengingIndex()` would previously return false
  when a base pointer was available leading to the emergency spillslot
  getting allocated late (that's the whole effect of this callback).
  Which made no sense to me so I took this case out: Even though the
  emergency spillslot is technically not referenced by FP in this case
  we still want it allocated early.

Differential Revision: https://reviews.llvm.org/D40876

llvm-svn: 322200
2018-01-10 18:16:24 +00:00
Ilya Biryukov 9555839228 [clangd] Pass Context to onDiagnosticsReady callback
Reviewers: sammccall

Reviewed By: sammccall

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D41907

llvm-svn: 322199
2018-01-10 17:59:27 +00:00
Francis Visoiu Mistrih 5836790955 [MIR] Update MIRLangRef with documentation on bundled instructions
Differential Revision: https://reviews.llvm.org/D41872

llvm-svn: 322198
2018-01-10 17:53:16 +00:00
Simon Pilgrim f74e3f45dc [X86][MMX] Add test for PR35869
llvm-svn: 322197
2018-01-10 17:05:03 +00:00
Marshall Clow 6b40646bec Fix misspelled macro name - thanks to andrew@ispras.ru for the catch
llvm-svn: 322196
2018-01-10 16:25:04 +00:00
Simon Pilgrim 8b63227279 [X86][MMX] Pull out common MMX VT test. NFCI.
llvm-svn: 322195
2018-01-10 15:32:19 +00:00
Eric Liu e5fe0ce45e Add a missing dependency for r322192
llvm-svn: 322194
2018-01-10 15:11:26 +00:00
Eric Liu 9af958fbf8 [clangd] Add more filters for collected symbols.
Summary:
o We only collect symbols in namespace or translation unit scopes.
o Add an option to only collect symbols in included headers.

Reviewers: hokein, ilya-biryukov

Reviewed By: hokein, ilya-biryukov

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D41823

llvm-svn: 322193
2018-01-10 14:57:58 +00:00
Zvi Rackover a27442f4f4 X86 Tests: Add isel tests for truncate-extract_vector-extend. NFC.
To be improved in a future patch

llvm-svn: 322192
2018-01-10 14:56:15 +00:00
Haojian Wu ba28e9ac5d [clangd] Add static index for the global code completion.
Summary:
Use the YAML-format symbols (generated by the global-symbol-builder tool) to
do the global code completion.
It is **experimental** only , but it allows us to experience global code
completion on a relatively small project.

Tested with LLVM project.

Reviewers: sammccall, ioeric

Reviewed By: sammccall, ioeric

Subscribers: klimek, ilya-biryukov, cfe-commits

Differential Revision: https://reviews.llvm.org/D41668

llvm-svn: 322191
2018-01-10 14:44:34 +00:00
Pavel Labath 7da84753a3 Handle O reply packets during qRcmd
Summary:
Gdb servers like openocd may send many $O reply packets for the client to output during a qRcmd command sequence.  Currently, lldb interprets the first O packet as an unexpected response.  Besides generating no output, this causes lldb to get out of sync with future commands because it continues reading O packets from the first command as response to subsequent commands.

This patch handles any O packets during an qRcmd, treating the first non-O packet as the true response.

Preliminary discussion at http://lists.llvm.org/pipermail/lldb-dev/2018-January/013078.html

Reviewers: clayborg

Reviewed By: clayborg

Subscribers: labath, lldb-commits

Differential Revision: https://reviews.llvm.org/D41745
Patch by Owen Shaw <llvm@owenpshaw.net>

llvm-svn: 322190
2018-01-10 14:39:08 +00:00
Dmitry Preobrazhensky 3afbd825a3 [AMDGPU][MC][GFX8][GFX9] Added XNACK_MASK support
See bug 35764: https://bugs.llvm.org/show_bug.cgi?id=35764

Differential Revision: https://reviews.llvm.org/D41614

Reviewers: vpykhtin, artem.tamazov, arsenm
llvm-svn: 322189
2018-01-10 14:22:19 +00:00
Pavel Labath e71429d1d8 Add empty() function to the Environment class
Needed to make the previous Freebsd fix work.

llvm-svn: 322188
2018-01-10 14:17:40 +00:00
Pavel Labath 75c6de0be2 Another attempt to fix FreeBsd build
the previous fix did not work because of different const qualifications
on the envp pointer.

This should resolve that (and remove a couple of const_casts in the
process).

llvm-svn: 322187
2018-01-10 13:53:40 +00:00
Simon Pilgrim 0643ea9ae0 Fix -Wdocumentation warning by removing empty @brief. NFCI
llvm-svn: 322186
2018-01-10 13:52:30 +00:00
Ilya Biryukov f60bf347c9 [clangd] Remove duplicates from code completion
Summary:
This patch removes hidden items from code completion.
Items can be hidden, e.g., by other items in the child scopes.
This patch addresses a particular problem of a duplicate completion
item for the class in the following example:

    struct Adapter { void method(); };
    void Adapter::method() {
       Adapter^
    }

We should probably investigate if there are other duplicates in
completion and remove them, possibly adding assertions that it never
happens.

Reviewers: sammccall

Reviewed By: sammccall

Subscribers: cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D41901

llvm-svn: 322185
2018-01-10 13:51:09 +00:00
Tim Northover 400c7b3c7a Fix Xcode build for r322174
llvm-svn: 322183
2018-01-10 13:32:01 +00:00
Simon Pilgrim a0c59cce0e [X86][SSE] Add some basic FABS combine tests
llvm-svn: 322182
2018-01-10 13:28:34 +00:00
Bjorn Pettersson 3851496e6e Avoid inlining if there is byval arguments with non-alloca address space
Summary:
After teaching InlineCost more about address spaces ()
another fault was detected in the inliner. If an argument has
the byval attribute the parameter might be copied to an alloca.
That part seems to work fine even if the argument has a different
address space than the alloca address space. However, if the
address spaces differ, then the inlined function still might
refer to the parameter using the original address space (the
inliner does not handle that situation very well).

This patch avoids the problem by simply disallowing inlining
when there are byval arguments with address space that differs
from the alloca address space.

I'm not really sure how to transform the code if we want to
get inlining for this situation. I assume that it never has
been working, and that the fixes in r321809 just exposed an
old problem.

Fault found by skatkov (Serguei Katkov). It is mentioned in
follow up comments to https://reviews.llvm.org/D40455.

Reviewers: skatkov

Reviewed By: skatkov

Subscribers: uabelho, eraman, llvm-commits, haicheng

Differential Revision: https://reviews.llvm.org/D41898

llvm-svn: 322181
2018-01-10 13:01:18 +00:00
Ed Maste 6ed7f00e49 Correct typo in help text
Information is a mass noun and doesn't take a plural "s".

llvm-svn: 322180
2018-01-10 12:55:14 +00:00
Joachim Protze 1014a6b6c6 Missed to add new test case in previous commit
llvm-svn: 322179
2018-01-10 12:52:34 +00:00
Joachim Protze 14b512e20c [OMPT] Fix ompt_task_data handling in implicit barriers
Changes to task_data in barrier-begin were not visible at barrier-end

Differential Revision: https://reviews.llvm.org/D41176

llvm-svn: 322178
2018-01-10 12:51:27 +00:00
Pavel Labath 3ff377a927 Fix windows and freebsd builds for r322174 (Environment)
llvm-svn: 322176
2018-01-10 12:25:48 +00:00
Simon Pilgrim a330a407c4 [X86][SSE] Add v2f64 u2 shuffle test
Adds missing coverage for SHUFPD undef argument lowering, and also shows a missed opportunity to remove a unnecessary move compared to 02 shuffle mask.

llvm-svn: 322175
2018-01-10 12:23:39 +00:00
Pavel Labath 62930e57eb Add Utility/Environment class for handling... environments
Summary:
There was some confusion in the code about how to represent process
environment. Most of the code (ab)used the Args class for this purpose,
but some of it used a more basic StringList class instead. In either
case, the fact that the underlying abstraction did not provide primitive
operations for the typical environment operations meant that even a
simple operation like checking for an environment variable value was
several lines of code.

This patch adds a separate Environment class, which is essentialy a
llvm::StringMap<std::string> in disguise. To standard StringMap
functionality, it adds a couple of new functions, which are specific to
the environment use case:
- (most important) envp conversion for passing into execve() and likes.
  Instead of trying to maintain a constantly up-to-date envp view, it
  provides a function which creates a envp view on demand, with the
  expectation that this will be called as the very last thing before
  handing the value to the system function.
- insert(StringRef KeyEqValue) - splits KeyEqValue into (key, value)
  pair and inserts it into the environment map.
- compose(value_type KeyValue) - takes a map entry and converts in back
  into "KEY=VALUE" representation.

With this interface most of the environment-manipulating code becomes
one-liners. The only tricky part was maintaining compatibility in
SBLaunchInfo, which expects that the environment entries are accessible
by index and that the returned const char* is backed by the launch info
object (random access into maps is hard and the map stores the entry in
a deconstructed form, so we cannot just return a .c_str() value). To
solve this, I have the SBLaunchInfo convert the environment into the
"envp" form, and use it to answer the environment queries. Extra code is
added to make sure the envp version is always in sync.

(This also improves the layering situation as Args was in the Interpreter module
whereas Environment is in Utility.)

Reviewers: zturner, davide, jingham, clayborg

Subscribers: emaste, lldb-commits, mgorny

Differential Revision: https://reviews.llvm.org/D41359

llvm-svn: 322174
2018-01-10 11:57:31 +00:00
Sander de Smalen a7ec090eaa [AArch64][SVE] Asm: Add support for (mov|dup) of scalar
Summary: This patch adds support for 'dup' (Scalar -> SVE) and its corresponding 'mov' alias.

Reviewers: fhahn, rengolin, evandro, echristo

Reviewed By: fhahn

Subscribers: aemerson, javed.absar, tschuett, kristof.beyls, llvm-commits

Differential Revision: https://reviews.llvm.org/D41822

llvm-svn: 322172
2018-01-10 11:32:47 +00:00
Diana Picus e3591f3a17 [ARM GlobalISel] Add inst selector tests for G_FNEG s32 and s64
G_FNEG is already handled by the TableGen'erated code. Just add a few
tests to make sure everything works as expected.

llvm-svn: 322170
2018-01-10 11:13:36 +00:00
Diana Picus 0ed7513c83 [ARM GlobalISel] Map G_FNEG to the FPR bank
llvm-svn: 322169
2018-01-10 11:13:31 +00:00
Diana Picus f949a0abac [ARM GlobalISel] Legalize G_FNEG for s32 and s64
For hard float, it is legal.

For soft float, we need to lower to 0 - x first, and then we can use the
libcall for G_FSUB. This is undoing some of the canonicalization
performed by the IRTranslator (which introduces G_FNEG when it sees a
0 - x). Ideally, that canonicalization would be performed by a
pre-legalizer pass that would allow targets to opt out of this behaviour
rather than dance around it in the legalizer.

llvm-svn: 322168
2018-01-10 10:45:34 +00:00