Commit Graph

216509 Commits

Author SHA1 Message Date
Kuba Brecka 4aa4a73f17 [sanitizer] Fix a crash with DlAddrSymbolizer and unnamed symbols
Apparently, dladdr() can succeed but return a NULL pointer, in which case strdup will crash.  Let's not call strdup on NULL pointers.

llvm-svn: 254068
2015-11-25 13:11:38 +00:00
Alexey Bataev f763027f04 [MSVC] 'property' with an empty array in array subscript expression.
MSVC supports 'property' attribute and allows to apply it to the declaration of an empty array in a class or structure definition.
For example:
```
__declspec(property(get=GetX, put=PutX)) int x[];
```
The above statement indicates that x[] can be used with one or more array indices. In this case, i=p->x[a][b] will be turned into i=p->GetX(a, b), and p->x[a][b] = i will be turned into p->PutX(a, b, i);
Differential Revision: http://reviews.llvm.org/D13336

llvm-svn: 254067
2015-11-25 12:01:00 +00:00
Daniel Marjamaki 8ade8d2efd [clang-tidy] code cleanup using isAssignmentOp()
llvm-svn: 254066
2015-11-25 11:30:00 +00:00
George Rimar 70e2508259 [ELF] - R_386_COPY relocation implemented (x86)
Implements R_386_COPY relocation for x86 target.
Similar to one for x64 http://reviews.llvm.org/D14090 which did most of job needed.

Differential revision: http://reviews.llvm.org/D14958

llvm-svn: 254065
2015-11-25 11:27:40 +00:00
Hal Finkel 005f840959 [PowerPC] Don't generate mfocrf on the e500mc
The e500mc does not actually support the mfocrf instruction; update the
processor definitions to reflect that fact.

Patch by Tom Rix (with some test-case cleanup by me).

llvm-svn: 254064
2015-11-25 10:14:31 +00:00
Alexey Bataev c99b04983b [X86] Support for C calling convention only for MCU target.
For MCU only C calling convention is allowed, all other calling conventions are not supported.
Differential Revision: http://reviews.llvm.org/D14864

llvm-svn: 254063
2015-11-25 09:24:26 +00:00
Eric Christopher f83a2c2db2 Accept any stack offset, including none, here.
llvm-svn: 254062
2015-11-25 09:21:36 +00:00
Eric Christopher 4675c439aa Fix some places where we were assuming that memory type had been legalized
to a simple type when lowering a truncating store of a vector type. In this
case for an EVT we'll return Expand as we should in all of the cases anyhow.

The testcase triggered at the one in VectorLegalizer::LegalizeOp, inspection
found the rest.

llvm-svn: 254061
2015-11-25 09:11:53 +00:00
Simon Pilgrim c85c49c665 [X86][AVX] Regenerate Splat OptSize tests
Tidied up triple and regenerate tests using update_llc_test_checks.py

llvm-svn: 254060
2015-11-25 09:06:17 +00:00
Elena Demikhovsky f07df9fcac AVX-512: Fixed a bug in VPERMT2* intrinsic.
It was wrong order of operands (from intrinsic to DAG node).
I added more strict type specification for instruction selection.

Differential Revision: http://reviews.llvm.org/D14942

llvm-svn: 254059
2015-11-25 08:17:56 +00:00
Kuba Brecka ad986d5141 [asan] Fix the atos-symbolizer-dyld-root-path.cc test case
Due to a typo, atos-symbolizer-dyld-root-path.cc is currently being skipped all the time. There's a few more typos/copy-paste-errors. Let's fix them and enable this test.

Differential Revision: http://reviews.llvm.org/D14951

llvm-svn: 254058
2015-11-25 07:59:00 +00:00
Xinliang David Li f47cf5505f [PGO] Convert InstrProfRecord based serialization methods to use common C methods
1. Convert serialization methods using InstrProfRecord as source into C (impl)
   interfaces using Closure.
2. Reimplement InstrProfRecord serialization method to use new C interface
   as dummy wrapper. 

Now it is ready to implement wrapper for runtime value profile data.

(The new code need better source location -- but not changed in this patch to
 minimize diffs. )

llvm-svn: 254057
2015-11-25 06:23:38 +00:00
Xinliang David Li ac5b860633 [PGO] convert a subset of C++ interfaces into C (for sharing) (NFC)
llvm-svn: 254056
2015-11-25 04:29:24 +00:00
Xinliang David Li 4f18bef998 Move member functions closer to others of the same class (NFC)
llvm-svn: 254055
2015-11-25 03:24:37 +00:00
Peter Collingbourne 463ff6d823 AsmParser: Make the code for parsing unnamed aliases more closely resemble that for unnamed globals.
This fixes parsing of forward references to unnamed aliases.

While here, remove an unnecessary isa check.

llvm-svn: 254054
2015-11-25 02:54:07 +00:00
Richard Smith cb50b511de Fix typo that was being SFINAE'd away (and apparently GCC 4.7.2 rejects-valid on this).
llvm-svn: 254053
2015-11-25 02:41:42 +00:00
Hans Wennborg 17436ce174 Follow-up to r254049; remove function I missed in the revert.
llvm-svn: 254052
2015-11-25 01:24:15 +00:00
Xinliang David Li 9f68d876a0 Add missing documentation. (NFC)
llvm-svn: 254051
2015-11-25 01:13:44 +00:00
Marshall Clow 9d73243bc1 Silence a -Wmissing-braces warning in the tests; mbstate_t is defined differently on different C libraries.
llvm-svn: 254050
2015-11-25 01:06:36 +00:00
Hans Wennborg 82d2d07ced Revert r254031: "ELF2: LinkerScript: lookup absolute paths under sysroot"
The test fails on Windows:

Command 34: "ld.lld" "-o" "D:\src\llvm\build.release\tools\lld\test\ELF\Output\l
inkerscript.s.tmp2" "D:\src\llvm\build.release\tools\lld\test\ELF\Output\linkers
cript.s.tmp.dir/xyz.script" "--sysroot=D:\src\llvm\build.release\tools\lld\test\
ELF\Output\linkerscript.s.tmp.dir"
Command 34 Result: 1
Command 34 Output:

Command 34 Stderr:
Unable to find /libxyz.a

llvm-svn: 254049
2015-11-25 00:58:31 +00:00
Matthias Braun 4f85838320 Doxygen: Use mathjax to create formulas.
The main motivation is to not require a latex installation when building
the documentation. I would also expect a better image quality and the
ability to copy&paste from formulas with a javascript based solution for
displaying the math.

Differential Revision: http://reviews.llvm.org/D14960

llvm-svn: 254048
2015-11-25 00:50:47 +00:00
Sanjoy Das c521c7bea5 [OperandBundles] Extract duplicated code into a helper function, NFC
llvm-svn: 254047
2015-11-25 00:42:24 +00:00
Sanjoy Das 7629346193 [InstCombine] Don't drop operand bundles
Reviewers: majnemer

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D14857

llvm-svn: 254046
2015-11-25 00:42:19 +00:00
Xinliang David Li 4945b16708 Fix function naming (NFC)
llvm-svn: 254045
2015-11-25 00:08:49 +00:00
Hans Wennborg e412b71f95 Revert r253528: "[X86] Enable shrink-wrapping by default."
This caused PR25607 and also caused Chromium to crash on start-up.

(Also had to update test/CodeGen/X86/avx-splat.ll, which was committed
after shrink wrapping was enabled.)

llvm-svn: 254044
2015-11-25 00:05:13 +00:00
Kaelyn Takata d0955312d9 Fix an asan error where NumElements > 32 for at least one case in
test/CodeGen/X86/avg.ll.

llvm-svn: 254043
2015-11-25 00:03:29 +00:00
Rong Xu 55fa418a90 Revert r254021
llvm-svn: 254042
2015-11-24 23:57:51 +00:00
Richard Smith a205719319 Teach RAV to pass its DataRecursionQueue to derived classes if they ask for it,
to allow them to explicitly opt into data recursion despite having overridden
Traverse*Stmt or Traverse*Expr. Use this to reintroduce data recursion to the
one place that lost it when DataRecursiveASTVisitor was removed.

llvm-svn: 254041
2015-11-24 23:50:47 +00:00
Rong Xu 25c106b347 [PGO] Revert revision r254021,r254028,r254035
Revert the above revision due to multiple issues.

llvm-svn: 254040
2015-11-24 23:49:08 +00:00
Rui Ueyama a46566f2db ELF: Omit PT_GNU_STACK segment if -z execstack is provided.
In the previous patch (r254003), I made the linker emit PT_GNU_STACK
unconditionally. But sometimes you want to have a control over the
presence of the segment. With this patch, you can omit the segment
by passing -z execstack option.

llvm-svn: 254039
2015-11-24 23:42:33 +00:00
Xinliang David Li 28b700373e [PGO] Add mapper callback to interfaces retrieving value data for site (NFC)
This allows cleaner implementation and merging retrieving/mapping in
one pass.

llvm-svn: 254038
2015-11-24 23:36:52 +00:00
Zachary Turner 933626229b Another hack to fix the build bot.
This script really should not be assuming every subdirectory is
a language directory for swig generation.  Using a hack to get
this working for now, but this should be solved once this script
is re-written similar to how prepare_bindings was.

llvm-svn: 254037
2015-11-24 23:11:54 +00:00
Teresa Johnson 3930361969 [ThinLTO] Add option to limit importing based on instruction count
Add a simple initial heuristic to control importing based on the number
of instructions recorded in the function's summary. Add option to
control the limit, and test using option.

llvm-svn: 254036
2015-11-24 22:55:46 +00:00
Rong Xu 88cb57aba9 [PGO] Relax test cases in PGO instrumentation
Fix buildbot failure for clang-x86_64-linux-selfhost-modules.
http://lab.llvm.org:8011/builders/clang-x86_64-linux-selfhost-modules/builds/8866
The failing test cases are newly added from r254021. It seems the IR has a
different order in this platform. In this patch, I temporarily relax the test
case to make the build green. I'll have a complete fix (more robust way to test)
soon.

llvm-svn: 254035
2015-11-24 22:50:34 +00:00
Diego Novillo 0b6985a3c6 SamplePGO - Add test for hot/cold inlined functions.
When the original binary is executed and sampled, the resulting profile
contains information on the original inline stack. We currently follow
the original inline plan if we notice that the inlined callsite has more
than 0 samples to it.

A better way is to determine whether the callsite is actually worth
inlining. If the callsite accumulates a small fraction of the samples
spent in the parent function, then we don't want to bother inlining it
(as it means that the callsite is actually cold).

This patch introduces a threshold expressed in percentage of samples
in relation to the parent function.  If the callsite uses less than N%
of the total samples used by its parent, the original inline decision is
not re-applied.

I've set the threshold to the very arbitrary value of 5%. I'm yet to do
any actual experiments to see what's a good value. I wanted to separate
the basic mechanism from the tuning.

llvm-svn: 254034
2015-11-24 22:38:37 +00:00
Zachary Turner f6a30d3172 Fix build after swig_bot_lib changes.
llvm-svn: 254033
2015-11-24 22:27:02 +00:00
Rui Ueyama a7e09c6221 ELF2: Factor out isUnderSysroot from readLinkerScript. NFC.
llvm-svn: 254032
2015-11-24 22:26:33 +00:00
Simon Atanasyan 44136b675d ELF2: LinkerScript: lookup absolute paths under sysroot
In case a sysroot prefix is configured, and the filename starts with the
'/' character, and the script being processed was located inside the
sysroot prefix, the file's name will be looked for in the sysroot
prefix. Otherwise, the linker falls to the common lookup scheme.

https://www.sourceware.org/binutils/docs-2.24/ld/File-Commands.html

Differential Revision: http://reviews.llvm.org/D14916

llvm-svn: 254031
2015-11-24 22:16:25 +00:00
Marshall Clow e0312a3047 Remove undefined behavior from tests; specifically, ensure that the value type of the allocators match the value type of the containers
llvm-svn: 254030
2015-11-24 22:10:51 +00:00
Simon Pilgrim c1225c28e1 [X86][SSE] Regenerate PMUL tests
Tidied up triple and regenerate tests using update_llc_test_checks.py

llvm-svn: 254029
2015-11-24 22:09:31 +00:00
Rong Xu 4dd22b8d2b [PGO] Fix build errors in x86_64-darwin
Fix buildbot failure for x86_64-darwin due to r254021

llvm-svn: 254028
2015-11-24 21:55:50 +00:00
Evgeniy Stepanov b05d380451 [msan] Relax origin-alignment test.
Change origin-alignment test to test only the alignment of the origin
store, and not the exact instruction sequence used to compute the
address. This makes the test less fragile and, in particular, lets it
pass both with the old and new MSan ABIs.

llvm-svn: 254027
2015-11-24 21:44:16 +00:00
Zachary Turner 48102bd186 swig-bot - Close the socket when shutting down.
llvm-svn: 254026
2015-11-24 21:35:58 +00:00
Zachary Turner 9befc01064 Include config settings in the archive, and extract on the remote.
llvm-svn: 254025
2015-11-24 21:35:50 +00:00
Zachary Turner cc3609362e Make swig_bot server support Ctrl+C
llvm-svn: 254024
2015-11-24 21:35:40 +00:00
Zachary Turner 0a2899ca82 swig_bot remote path connection / preliminary implementation.
With this patch, the client will package up all the required
inputs into a compressed zip file, establish a connection to the
server, send the input to the server, and wait for the server to
send a response (in this case the response is just echoed back to
the client).

This gets the network communication in place, and in a subsequent
patch I will follow up with the code that actually runs swig on
the server and sends back the output instead of echoing back the
input.

llvm-svn: 254023
2015-11-24 21:35:32 +00:00
Zachary Turner 2db36097b4 First implementation of swig_bot.py
This version supports local generation only.  It's intentionally
stupid, and does not support any kind of dependency checking.
If you run the script, it's going to call SWIG.  While this is
a slow process, we are going to combine the use of the swig bot
with checked in static bindings, meaning that it won't be terribly
important to only regenerate the bindings when the input files
have actually changed.

A side benefit of this is that the implementation is drastically
simpler.

This is all experimental at the moment, but it duplicates a lot
of the logic currently found in prepare_bindings.py.  There was
not a good way to reuse some of the logic without invasive changes
on that script, and since this script is still experimental, it
makes sense to just copy them over, and if / when this becomes
more mature, we can get rid of the other ones.

llvm-svn: 254022
2015-11-24 21:35:17 +00:00
Rong Xu 1b665ca707 [PGO] MST based PGO instrumentation infrastructure
This patch implements a minimum spanning tree (MST) based instrumentation for
PGO. The use of MST guarantees minimum number of CFG edges getting
instrumented. An addition optimization is to instrument the less executed
edges to further reduce the instrumentation overhead. The patch contains both the
instrumentation and the use of the profile to set the branch weights.

Differential Revision: http://reviews.llvm.org/D12781

llvm-svn: 254021
2015-11-24 21:31:25 +00:00
Teresa Johnson d450da3281 [ThinLTO] Refactor function body scan during importing into helper (NFC)
llvm-svn: 254020
2015-11-24 21:15:19 +00:00
Kelvin Li 099bb8c65d [OpenMP] Parsing and sema support for num_teams clause
http://reviews.llvm.org/D14802

llvm-svn: 254019
2015-11-24 20:50:12 +00:00