Commit Graph

257275 Commits

Author SHA1 Message Date
Pavel Labath 775588c0c3 Remove lldb streams from the Log class completely
Summary:
previously we switched to llvm streams for log output, this completes
the switch for the error streams.

I also clean up the includes and remove the unused argument from
DisableAllLogChannels().

This required adding a bit of boiler plate to convert the output in the
command interpreter, but that should go away when we switch command
results to use llvm streams as well.

Reviewers: zturner, eugene

Subscribers: lldb-commits, emaste

Differential Revision: https://reviews.llvm.org/D30894

llvm-svn: 297812
2017-03-15 09:06:58 +00:00
Pavel Labath 6de25ec61a dotest.py: remove the ability to specify different architectures/compilers in a single invocation
Summary:
This has been broken at least since the new test result framework was
added, which was over a year ago. It looks like nobody has missed it
since.

Removing this makes the gmodules handling code saner, as it already did
not know how to handle the multiple-compilers case.

My motivation for this is libc++ data formatters support on android -- I
am trying make a central way of determining whether libc++ tests can be
run, and without this, I would have to resort to similar hacks as the
gmodules code.

Reviewers: jingham, zturner

Subscribers: danalbert, tfiala, lldb-commits

Differential Revision: https://reviews.llvm.org/D30779

llvm-svn: 297811
2017-03-15 08:51:59 +00:00
Eric Liu e51ee0668c [Support][CommandLine] Make it possible to get error messages from ParseCommandLineOptions when ignoring errors.
Summary:
Previously, ParseCommandLineOptions returns false and ignores error messages
when IgnoreErrors. It would be useful to also return error messages if users
decide to check parsing result instead of having the program exit on error.

Reviewers: chandlerc, mehdi_amini, rnk

Reviewed By: rnk

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D30893

llvm-svn: 297810
2017-03-15 08:41:00 +00:00
Sam Parker 654cb8263a [ARM] Enable SMLAL[B|T] isel
Enable the selection of the 64-bit signed multiply accumulate
instructions which operate on 16-bit operands. These are enabled for
ARMv5TE onwards for ARM and for V6T2 and other DSP enabled Thumb
architectures.

Differential Revision: https://reviews.llvm.org/D30044

llvm-svn: 297809
2017-03-15 08:27:11 +00:00
Taewook Oh 1b192336d8 NFC: Reformats comments according to the coding guildelines.
llvm-svn: 297808
2017-03-15 06:29:23 +00:00
Michal Gorny f89c874d44 [llvm-config] Add minimal sanity tests for path options
Add minimal tests that check whether path options do not fail and output
directories looking like expected. Requested in
https://reviews.llvm.org/rL291218.

Differential Revision: https://reviews.llvm.org/D28533

llvm-svn: 297807
2017-03-15 05:57:29 +00:00
Michal Gorny 6e31072e21 [test] Fix test dependencies when using installed tools
Use the LLVM_UTILS_PROVIDED variable to determine whether test tool
dependencies should be exposed for clang-tools-extra tests. If clang is
being built stand-alone and LLVM test tools (FileCheck, count and not)
are installed, the top-level CMakeLists.txt of clang sets this variable
to indicate that they will not be built as a part of this build,
and therefore no dependencies should be emitted for them. This fixes
the dependency errors when building clang stand-alone with tests
enabled.

Differential Revision: https://reviews.llvm.org/D29851

llvm-svn: 297806
2017-03-15 05:55:43 +00:00
Taewook Oh fb1833efeb [BranchFolding] Merge debug locations from common tail instead of removing
Summary: D25742 improved the precision of debug locations for PGO by removing debug locations from common tail when tail-merging. However, if identical insturctions that are merged into a common tail have the same debug locations, there's no need to remove them. This patch creates a merged debug location of identical instructions across SameTails and assign it to the instruction in the common tail, so that the debug locations are maintained if they are same across identical instructions.

Reviewers: aprantl, probinson, MatzeB, rob.lougher

Reviewed By: aprantl

Subscribers: andreadb, llvm-commits

Differential Revision: https://reviews.llvm.org/D30226

llvm-svn: 297805
2017-03-15 05:44:59 +00:00
Peter Collingbourne 7f6e2c97b8 Ensure that prefix data is preserved with subsections-via-symbols
On MachO platforms that use subsections-via-symbols dead code stripping will
drop prefix data. Unfortunately there is no great way to convey the relationship
between a function and its prefix data to the linker. We are forced to use a bit
of a hack: we give the prefix data it’s own symbol, and mark the actual function
entry an .alt_entry.

Patch by Moritz Angermann!

Differential Revision: https://reviews.llvm.org/D30770

llvm-svn: 297804
2017-03-15 04:18:16 +00:00
Petr Hosek 3b4e29ba68 [ELF] Update tests to work even with modified defaults
D30229 changes the defaults based on section names to match the
GAS behavior, which breaks some of the tests that rely on the old
defaults.

Differential Revision: https://reviews.llvm.org/D30967

llvm-svn: 297803
2017-03-15 03:38:48 +00:00
Petr Hosek 02ad516b2e Support ABSOLUTE on the right hand side in linker scripts
This also requires postponing the assignment the assignment of
symbols defined in input linker scripts since those can refer to
output sections and in case we don't have a SECTIONS command, we
need to wait until all output sections have been created and
assigned addresses.

Differential Revision: https://reviews.llvm.org/D30851

llvm-svn: 297802
2017-03-15 03:33:23 +00:00
Dean Michael Berris c6ee33852b [XRay] [compiler-rt] Refactor logic for xray fdr logging. NFC.
Summary:
Separated the IO and the thread local storage state machine of logging
from the writing of log records once the contents are deterministic.

Finer granularity functions are provided as inline functions in the same
header such that stack does not grow due to the functions being separated.

An executable utility xray_fdr_log_printer is also implemented to use the
finest granularity functions to produce binary test data in the FDR format
with a relatively convenient text input.

For example, one can take a file with textual contents layed out in rows
and feed it to the binary to generate data that llvm-xray convert can then
read. This is a convenient way to build a test suite for llvm-xray convert
to ensure it's robust to the fdr format.

Example:

$cat myFile.txt
NewBuffer : { time = 2 , Tid=5}
NewCPU : { CPU =1 , TSC = 123}
Function : { FuncId = 5, TSCDelta = 3, EntryType = Entry }
Function : { FuncId = 5, TSCDelta = 5, EntryType = Exit}
TSCWrap : { TSC = 678 }
Function : { FuncId = 6, TSCDelta = 0, EntryType = Entry }
Function : { FuncId = 6, TSCDelta = 50, EntryType = Exit }
EOB : { }
$cat myFile.txt | ./bin/xray_fdr_log_printer > /tmp/binarydata.bin
$./bin/llvm-xray convert -output-format=yaml -output=- /tmp/binarydata.bin

yaml format comes out as expected.

Reviewers: dberris, pelikan

Reviewed By: dberris

Subscribers: llvm-commits, mgorny

Differential Revision: https://reviews.llvm.org/D30850

llvm-svn: 297801
2017-03-15 03:12:01 +00:00
Dean Michael Berris 66443d80f1 [XRay][compiler-rt] Support TSC emulation even for x86_64
Summary:
Use TSC emulation in cases where RDTSCP isn't available on the host
running an XRay instrumented binary. We can then fall back into
emulation instead of not even installing XRay's runtime functionality.
We only do this for now in the naive/basic logging implementation, but
should be useful in even FDR mode.

Should fix http://llvm.org/PR32148.

Reviewers: pelikan, rnk, sdardis

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D30677

llvm-svn: 297800
2017-03-15 02:28:00 +00:00
Douglas Yung 842c707d7c Fix test on Windows. Only a single backslash was required, not a double.
llvm-svn: 297799
2017-03-15 01:38:24 +00:00
Mehdi Amini f8764e30d5 Add deployment knobs to tests (for Apple platforms)
The tests for libc++ specify -target on the command-line to the
compiler, but this is problematic for a few reasons.

Firstly, the -target option isn't supported on Apple platforms. Parts
of the triple get dropped and ignored. Instead, software should be
compiled with a combination of the -arch and -m<name>-version-min
options.

Secondly, the generic "darwin" target references a kernel version
instead of a platform version. Each platform has its own independent
versions (with different versions of libc++.1.dylib), independent of the
version of the Darwin kernel.

This commit adds support to the LIT infrastructure for testing against
Apple platforms using -arch and -platform options.

If the host is not on OS X, or the compiler type is not clang or apple-clang, then this commit has NFC.
If the host is on OS X and --param=target_triple=... is specified, then a warning is emitted to use arch and platform instead. Besides the warning, there's NFC.
If the host is on OS X and *no* target-triple is specified, then use the new deployment target logic. This uses two new lit parameters, --param=arch=<arch> and --param=platform=<platform>. <platform> has the form <name>[<version>].
By default, arch is auto-detected from clang -dumpmachine, and platform is "macosx".
If the platform doesn't have a version:
For "macosx", the version is auto-detected from the host system using sw_vers. This may give a different version than the SDK, since new SDKs can be installed on older hosts.
Otherwise, the version is auto-detected from the SDK version using xcrun --show-sdk-path.
-arch <arch> -m<name>-version-min=<version> is added to the compiler flags.
The target triple is computed as <arch>-apple-<platform>. It is *not* passed to clang, but it is available for XFAIL and UNSUPPORTED (as is with_system_cxx_lib=<target>).
For convenience, apple-darwin and <arch>-apple-darwin are added to the set of available features.
There were a number of tests marked to XFAIL on x86_64-apple-darwin11
and x86_64-apple-darwin12. I updated these to
x86_64-apple-macosx10.7 and x86_64-apple-macosx10.8.

llvm-svn: 297798
2017-03-15 00:59:54 +00:00
Kostya Serebryany 70240430d9 [libFuzzer] remove even more stale code
llvm-svn: 297797
2017-03-15 00:39:06 +00:00
Kostya Serebryany 862a845aa5 [libFuzzer] simplify code a bit
llvm-svn: 297796
2017-03-15 00:34:25 +00:00
Francis Visoiu Mistrih 10f54e39fa [MachineFunction] Fix documentation. NFC
MachineFunction::getBlockNumber -> MachineFunction::getNumber.

llvm-svn: 297795
2017-03-14 23:58:57 +00:00
Dean Michael Berris 601afaf089 Fix a build break with xray
Summary: Building compiler-rt with clang 3.7 broken, could not find mkstemp

Reviewers: dberris, bkramer

Reviewed By: dberris

Differential Revision: https://reviews.llvm.org/D30389

llvm-svn: 297794
2017-03-14 23:49:12 +00:00
Evgeniy Stepanov a4238e4cdb [msan] Intercept wcsncpy, wcsnlen.
llvm-svn: 297793
2017-03-14 23:48:37 +00:00
Volkan Keles 4862c63594 [GlobalISel] IRTranslator: Return the scalar for <1 x Ty> constant vectors
Summary:
<1 x Ty> is not a legal vector type in LLT, we shouldn’t build G_MERGE_VALUES
instruction for them.

Reviewers: qcolombet, aditya_nandakumar, dsanders, t.p.northover, ab, javed.absar

Reviewed By: qcolombet

Subscribers: dberris, rovka, kristof.beyls, llvm-commits

Differential Revision: https://reviews.llvm.org/D30948

llvm-svn: 297792
2017-03-14 23:45:06 +00:00
Adrian Prantl 858b25e2c7 Make a blind attempt to fix this testcase on Windows.
llvm-svn: 297791
2017-03-14 23:29:40 +00:00
Adrian Prantl 0ebdeac13a Canonicalize the path provided by -fmodules-cache-path.
This fixes lookup mismatches that could happen when the module cache
path contained a '/./' component.

<rdar://problem/30413458>

Differential Revision: https://reviews.llvm.org/D30915

llvm-svn: 297790
2017-03-14 23:07:49 +00:00
Rafael Espindola d3c22f08b3 Don't create copy relocs or dummy plt's if given -z notext.
Being passed -z notext is a pretty strong indication that the user is
OK with text relocations. This is not the same behavior as bfd, but
bfd defaults to -z notext, so it has to try to avoid text relocations
and use them as a last resort.

llvm-svn: 297789
2017-03-14 22:50:07 +00:00
Fiona Glaser a9bd572b6f MemCpyOptimizer: don't create new addrspace casts
This isn't safe on all targets, and since we don't have a way
to know it's safe, avoid doing it for now.

llvm-svn: 297788
2017-03-14 22:37:38 +00:00
Chris Bieneman 8baba08b64 [debugserver] NFC. Cleanup Get/Set Register Value/Context
This patch modifies the Get/Set Register Value/Context functions for Intel to not duplicate code for reading non-AVX registers. This is similar to other transformations I've been making to the AVX register handling code.

llvm-svn: 297787
2017-03-14 22:24:36 +00:00
Daniel Sanders a228df75c0 [globalisel] LLVM_BUILD_GLOBAL_ISEL=OFF should prevent GlobalISel instruction selector from being declared.
llvm-svn: 297786
2017-03-14 22:09:29 +00:00
Kostya Serebryany f81cc098ca [libFuzzer] remove more stale code
llvm-svn: 297785
2017-03-14 21:47:52 +00:00
Simon Pilgrim 2df199820b Fix Wdocumentation warning
llvm-svn: 297784
2017-03-14 21:43:52 +00:00
Kostya Serebryany 24d0016bbd [libFuzzer] don't clear Counters in TracePC::CollectFeatures since they will be cleared anyway in ResetMaps
llvm-svn: 297783
2017-03-14 21:40:53 +00:00
Daniel Sanders 8a4bae9993 [globalisel][tblgen] Add support for ComplexPatterns
Summary:
Adds a new kind of MachineOperand: MO_Placeholder.
This operand must not appear in the MIR and only exists as a way of
creating an 'uninitialized' operand until a matcher function overwrites it.

Depends on D30046, D29712

Reviewers: t.p.northover, ab, rovka, aditya_nandakumar, javed.absar, qcolombet

Reviewed By: qcolombet

Subscribers: dberris, kristof.beyls, llvm-commits

Differential Revision: https://reviews.llvm.org/D30089

llvm-svn: 297782
2017-03-14 21:32:08 +00:00
Kostya Serebryany a43a299382 [libFuzzer] remove stale code
llvm-svn: 297781
2017-03-14 21:30:14 +00:00
Simon Pilgrim cf2da96c82 [SelectionDAG] Add a signed integer absolute ISD node
Reduced version of D26357 - based on the discussion on llvm-dev about canonicalization of UMIN/UMAX/SMIN/SMAX as well as ABS I've reduced that patch to just the ABS ISD node (with x86/sse support) to improve basic combines and lowering.

ARM/AArch64, Hexagon, PowerPC and NVPTX all have similar instructions allowing us to make this a generic opcode and move away from the hard coded tablegen patterns which makes it tricky to match more complex patterns.

At the moment this patch doesn't attempt legalization as we only create an ABS node if its legal/custom.

Differential Revision: https://reviews.llvm.org/D29639

llvm-svn: 297780
2017-03-14 21:26:58 +00:00
Benjamin Kramer 5957a19630 [clangd] Fix not being able to attach a debugger on macOS
Clangd is often waiting for input on getline as it awaits requests. If the
getline is interrupted, it causes the system call (read) to fail and the EINTR
error to be set. This can be seen when attaching a debugger such as LLDB on
macOS. On macOS (and possibly other operating systems), this system call is not
restarted after interruption but on Linux it is restarted which is why
attaching a debugger does work correctly there.

The solution is to work around the non-restarting system call by checking the
errno for EINTR when the stream fails and try again. This should be safe on all
Unixish platforms.

See also http://bugs.llvm.org/show_bug.cgi?id=32149 for some background
discussion.

Patch by Marc-Andre Laperle!
Differential Revision: https://reviews.llvm.org/D30675

llvm-svn: 297779
2017-03-14 20:41:28 +00:00
Krzysztof Parzyszek ff7f6675e7 [Hexagon] Recognize hexagonv62 as a valid target CPU
llvm-svn: 297778
2017-03-14 20:29:23 +00:00
Derek Schuff e2688c432f [WebAssembly] Use LEB encoding for value types
Previously we were using the encoded LEB hex values
for the value types.  This change uses the decoded
negative value and the LEB encoder to write them out.

Differential Revision: https://reviews.llvm.org/D30847

Patch by Sam Clegg

llvm-svn: 297777
2017-03-14 20:23:22 +00:00
Chris Bieneman 265ca535ab [CMake] Override debugserver to use the build tree on Darwin
This patch adds support to the test suite for overriding the path to debugserver, and uses the override to point to the build tree's debugserver on Darwin.

llvm-svn: 297776
2017-03-14 20:04:46 +00:00
Evgeniy Stepanov 32f6b5129f [cfi] Disable bad-split test on win32.
It appears that the fix only helped Itanium ABI.

llvm-svn: 297775
2017-03-14 20:02:42 +00:00
Chris Bieneman 5bd77e02f7 [debugserver] Fixing a small logic error from r297685
I had mixed up the logic during patch review. This resolves the test failure reading YMM registers on Darwin.

llvm-svn: 297774
2017-03-14 20:01:24 +00:00
Rafael Espindola 8f2dd7c042 Archives require a symbol table on Solaris, even if empty.
On Solaris ld (and some other tools that use the underlying utility
libraries, such as elfdump) chokes on an archive library that has no
symbol table. The Solaris tools always create one, even if it's empty.

That bug has been fixed in the latest development line, and can
probably be backported to a supported release, but it would be nice if
LLVM's archiver could emit the empty symbol table, too.

Patch by Danek Duvall!

llvm-svn: 297773
2017-03-14 19:57:13 +00:00
Billy Robert O'Neal III c32a1bdd5f Fixed unintentional assignment-in-assert in new "extending memory management tools" algorithms.
llvm-svn: 297772
2017-03-14 19:36:30 +00:00
Evgeniy Stepanov dd913de968 [cfi] Add test for type metadata split issue.
https://reviews.llvm.org/D30716

llvm-svn: 297771
2017-03-14 19:33:44 +00:00
Duncan P. N. Exon Smith 3cb183b121 Modules: Optimize bitcode encoding of diagnostic state
Since bitcode uses VBR encoding, large numbers are more expensive than
small ones.  Instead of emitting a UINT_MAX sentinel after each sequence
of state-change pairs, emit the size of the sequence as a prefix.

This should have no functionality change besides saving bits from the
encoding.

llvm-svn: 297770
2017-03-14 19:31:27 +00:00
Evgeniy Stepanov 43dcf4d330 Fix asm printing of associated sections.
Make MCSectionELF::AssociatedSection be a link to a symbol, because
that's how it works in the assembly, and use it in the asm printer.

llvm-svn: 297769
2017-03-14 19:28:51 +00:00
Eli Friedman caea769f11 [ARM] Replace some C++ selection code with TableGen patterns. NFC.
Differential Revision: https://reviews.llvm.org/D30794

llvm-svn: 297768
2017-03-14 18:43:37 +00:00
Juergen Ributzka 118bb45992 [Support] Make the SystemZ bot happy by using make_error_code.
This should fix the last issue on the SystemZ bot related to the broken symlink
test.

llvm-svn: 297767
2017-03-14 18:37:44 +00:00
Reid Kleckner e30d3eb53e Fix arch-specific-libdir tests on Windows
This is pretty horrible, but I forget if we have any better ways to
handle these backslashing issues.

llvm-svn: 297764
2017-03-14 18:24:41 +00:00
Dimitry Andric e773b2d341 After rL297370 and rL297383, instead of a platform check, explicitly
check for the existence of RTLD_DEEPBIND, since this constant is only
supported for glibc >= 2.3.4.  This fixes builds for FreeBSD and other
platforms that do not have RTLD_DEEPBIND.

llvm-svn: 297763
2017-03-14 18:18:14 +00:00
Sanjay Patel 8dd99dce6c [DAG] vector div/rem with any zero element in divisor is undef
This is the backend counterpart to:
https://reviews.llvm.org/rL297390
https://reviews.llvm.org/rL297409
and follow-up to:
https://reviews.llvm.org/rL297384

It surprised me that we need to duplicate the check in FoldConstantArithmetic and FoldConstantVectorArithmetic, 
but one or the other doesn't catch all of the test cases. There is an existing code comment about merging those 
someday.

Differential Revision: https://reviews.llvm.org/D30826

llvm-svn: 297762
2017-03-14 18:06:28 +00:00
Reid Kleckner 329f24d6f6 Warn on enum assignment to bitfields that can't fit all values
This adds -Wbitfield-enum-conversion, which warns on implicit
conversions that happen on bitfield assignment that change the value of
some enumerators.

Values of enum type typically take on a very small range of values, so
they are frequently stored in bitfields. Unfortunately, there is no
convenient way to calculate the minimum number of bits necessary to
store all possible values at compile time, so users usually hard code a
bitwidth that works today and widen it as necessary to pass basic
testing and validation. This is very error-prone, and leads to stale
widths as enums grow. This warning aims to catch such bugs.

This would have found two real bugs in clang and two instances of
questionable code. See r297680 and r297654 for the full description of
the issues.

This warning is currently disabled by default while we investigate its
usefulness outside of LLVM.

The major cause of false positives with this warning is this kind of
enum:
  enum E { W, X, Y, Z, SENTINEL_LAST };
The last enumerator is an invalid value used to validate inputs or size
an array. Depending on the prevalance of this style of enum across a
codebase, this warning may be more or less feasible to deploy. It also
has trouble on sentinel values such as ~0U.

Reviewers: rsmith, rtrieu, thakis

Reviewed By: thakis

Subscribers: hfinkel, voskresensky.vladimir, sashab, cfe-commits

Differential Revision: https://reviews.llvm.org/D30923

llvm-svn: 297761
2017-03-14 18:01:02 +00:00