Commit Graph

194076 Commits

Author SHA1 Message Date
Philip Reames 860660ea5e [RewriteStatepointsForGC] More style cleanup [NFC]
Use llvm_unreachable where appropriate, use SmallVector where easy to do so, introduce typedefs for planned type migrations.

llvm-svn: 230068
2015-02-20 22:05:18 +00:00
Adrian Prantl b59bc1a528 Wrap clang module files in a Mach-O, ELF, or COFF container.
This is a necessary prerequisite for debugging with modules.
The .pcm files become containers that hold the serialized AST which allows
us to store debug information in the module file that can be shared by all
object files that were built importing the module.

rdar://problem/19104245

This reapplies r230044 with a fixed configure+make build and updated
dependencies.

llvm-svn: 230067
2015-02-20 21:53:12 +00:00
Greg Clayton 338d0bdc96 Make sure the public state is eStateStopped when we return from SBTarget::LoadCore() by hijacking the public event queue so we can ensure that the event gets consumed and the public state of the process (StateType SBProcess::GetState()) returns eStateStopped.
llvm-svn: 230066
2015-02-20 21:51:06 +00:00
Enrico Granata 83a1437646 Start the refactoring of globbing
- Add Host::GlobArguments() to perform local-globbing
I implemented this on OSX and Windows in terms of argdumper (Windows implementation is essentially the same as the OSX version + a change in binary name and some string magic)
Other platforms did not specifically chime in, so I left it unimplemented for them for the time being. Please feel free to fill in the blanks

- Add Platform::GlobArguments() to support remote-globbing
For now, no feature change here - but now we have infrastructure to help GDBRemote targets to support globbing - and patches to that effect will follow

No visible feature change

llvm-svn: 230065
2015-02-20 21:48:38 +00:00
Ben Langmuir bc35fbe43a Don't try to rebuild modules on umbrella header mismatch
There are two issues here:
1) It's too late to rebuild at this point, because we won't go through
removeModules and when we try to reload the new .pcm we'll get the old
one instead.  We might be able to call removeModules after an OutOfDate
here, but I'm not yet confident that it is always safe to do so.

2) In practice, this check fails spuriously when the umbrella header
appears to change because of a VFS change that means it maps to a
different copy of the same file.  Because of this, we just skip the
check for now.

llvm-svn: 230064
2015-02-20 21:46:39 +00:00
Philip Reames 0a3240f4de [RewriteStatepointsForGC] Remove notion of SafepointBounds [NFC]
The notion of a range of inserted safepoint related code is no longer really applicable.  This survived over from an earlier implementation.  Just saving the inserted gc.statepoint and working from that is far clearer given the current code structure.  Particularly when invokable statepoints get involved.

llvm-svn: 230063
2015-02-20 21:34:11 +00:00
Chris Bieneman e88a396f86 Raising minimum required CMake version to 2.8.12.2.
llvm-svn: 230062
2015-02-20 21:28:18 +00:00
Jacques Pienaar 68a7dbf86d Fix merging of << at end of input.
Commit of review http://reviews.llvm.org/D7766

llvm-svn: 230061
2015-02-20 21:09:01 +00:00
Greg Clayton 35824e36f5 Avoid a race condition when loading core files where the process might still be handling the eStateStopped event we post to the private state thread causing us to return from SBTarget::LoadCore() before the process is ready to have API calls used on it.
This fixes a crasher that could happen when loading core files from scripts.

llvm-svn: 230060
2015-02-20 20:59:47 +00:00
Eric Christopher 9ecaa174d6 Grab the DataLayout off of the TargetMachine since that's where
it's stored.

llvm-svn: 230059
2015-02-20 20:56:39 +00:00
Benjamin Kramer 911d5b3ace LoopRotate: When reconstructing loop simplify form don't split edges from indirectbrs.
Yet another chapter in the endless story. While this looks like we leave
the loop in a non-canonical state this replicates the logic in
LoopSimplify so it doesn't diverge from the canonical form in any way.

PR21968

llvm-svn: 230058
2015-02-20 20:49:25 +00:00
Duncan P. N. Exon Smith a5c57ccf2d IR: Change MDFile to directly store the filename/directory
In the old (well, current) schema, there are two types of file
references: untagged and tagged (the latter references the former).

    !0 = !{!"filename", !"/directory"}
    !1 = !{!"0x29", !1} ; DW_TAG_file_type [filename] [/directory]

The interface to `DIBuilder` universally takes the tagged version,
described by `DIFile`.  However, most `file:` references actually use
the untagged version directly.

In the new hierarchy, I'm merging this into a single node: `MDFile`.

Originally I'd planned to keep the old schema unchanged until after I
moved the new hierarchy into place.

However, it turns out to be trivial to make `MDFile` match both nodes at
the same time.

  - Anyone referencing !1 does so through `DIFile`, whose implementation
    I need to gut anyway (as I do the rest of the `DIDescriptor`s).
  - Anyone referencing !0 just references an `MDNode`, and expects a
    node with two `MDString` operands.

This commit achieves that, and updates all the testcases for the parts
of the new hierarchy that used the two-node schema (I've replaced the
untagged nodes with `distinct !{}` to make the diff clear (otherwise the
metadata all gets renumbered); it might be worthwhile to come back and
delete those nodes and renumber the world, not sure).

llvm-svn: 230057
2015-02-20 20:35:17 +00:00
Peter Collingbourne e0c4f7eb81 Add test suite for the Control Flow Integrity feature.
Differential Revision: http://reviews.llvm.org/D7738

llvm-svn: 230056
2015-02-20 20:31:18 +00:00
Peter Collingbourne a4ccff3281 Implement Control Flow Integrity for virtual calls.
This patch introduces the -fsanitize=cfi-vptr flag, which enables a control
flow integrity scheme that checks that virtual calls take place using a vptr of
the correct dynamic type. More details in the new docs/ControlFlowIntegrity.rst
file.

It also introduces the -fsanitize=cfi flag, which is currently a synonym for
-fsanitize=cfi-vptr, but will eventually cover all CFI checks implemented
in Clang.

Differential Revision: http://reviews.llvm.org/D7424

llvm-svn: 230055
2015-02-20 20:30:56 +00:00
Peter Collingbourne e6909c8e8b Introduce bitset metadata format and bitset lowering pass.
This patch introduces a new mechanism that allows IR modules to co-operatively
build pointer sets corresponding to addresses within a given set of
globals. One particular use case for this is to allow a C++ program to
efficiently verify (at each call site) that a vtable pointer is in the set
of valid vtable pointers for the class or its derived classes. One way of
doing this is for a toolchain component to build, for each class, a bit set
that maps to the memory region allocated for the vtables, such that each 1
bit in the bit set maps to a valid vtable for that class, and lay out the
vtables next to each other, to minimize the total size of the bit sets.

The patch introduces a metadata format for representing pointer sets, an
'@llvm.bitset.test' intrinsic and an LTO lowering pass that lays out the globals
and builds the bitsets, and documents the new feature.

Differential Revision: http://reviews.llvm.org/D7288

llvm-svn: 230054
2015-02-20 20:30:47 +00:00
Jozef Kolek 0365675522 Reversed revision 229706. The reason is regression, which is caused by the
usage of instruction ADDU16 by CodeGen. For this instruction an improper
register is allocated, i.e. the register that is not from register set defined
for the instruction.

llvm-svn: 230053
2015-02-20 20:26:52 +00:00
Adrian Prantl a4f522fa19 Revert "Wrap clang module files in a Mach-O, ELF, or COFF container."
This reverts commit r230044 while dealing with buildbot breakage.

Conflicts:
	test/Modules/module_container.m

llvm-svn: 230052
2015-02-20 20:00:27 +00:00
David Majnemer ab457815f3 Verifier: Unused comdats might not have a corresponding GV
This fixes PR22646.

llvm-svn: 230051
2015-02-20 19:58:48 +00:00
Eric Christopher db51e2a52a Fix an asan use-after-free bug introduced by the asm printer
changes to remove non-Function based subtargets out of the asm
printer. For module level emission we'll need to construct up
an MCSubtargetInfo so that we can encode instructions for
emission.

llvm-svn: 230050
2015-02-20 19:54:07 +00:00
Enrico Granata c5515ef1bb Add the new file to the CMakeLists. This should appease the Windows bot
llvm-svn: 230049
2015-02-20 19:54:06 +00:00
Adrian Prantl fed81aa685 Require a target for this testacse.
llvm-svn: 230048
2015-02-20 19:52:43 +00:00
Philip Reames fa2fcf173b [GC, RewriteStatepointsForGC] Style cleanup and bug fix
When doing style cleanup, I noticed a minor bug in this code.  If we have a pointer that we think is unused after a statepoint and thus doesn't need relocation, we store a null pointer into the alloca we're about to promote.  This helps turn a mistake in liveness analysis into an easily debuggable crash.  It turned out this code had never been updated to handle invoke statepoints.  

There's no test for this.  Without a bug in liveness, it appears impossible to make this trigger in a way which is visible in the resulting IR.  We might store the null, but when promoting the alloca, there will be no uses and thus nothing to test against.  Suggestions on how to test are very welcome.

llvm-svn: 230047
2015-02-20 19:51:56 +00:00
Enrico Granata 8fdf78594e Add an OptionValueLanguage class
llvm-svn: 230046
2015-02-20 19:46:30 +00:00
Reid Kleckner a070ee5ef5 Use unreachable instead of assert(false) to silence MSVC warning
llvm-svn: 230045
2015-02-20 19:46:02 +00:00
Adrian Prantl c4091aa74e Wrap clang module files in a Mach-O, ELF, or COFF container.
This is a necessary prerequisite for debugging with modules.
The .pcm files become containers that hold the serialized AST which allows
us to store debug information in the module file that can be shared by all
object files that were built importing the module.

rdar://problem/19104245

llvm-svn: 230044
2015-02-20 19:44:52 +00:00
Andrea Di Biagio 7035178aeb [X86][FastIsel] Teach how to select float-half conversion intrinsics.
This patch teaches X86FastISel how to select intrinsic 'convert_from_fp16' and
intrinsic 'convert_to_fp16'.
If the target has F16C, we can select VCVTPS2PHrr for a float-half conversion,
and VCVTPH2PSrr for a half-float conversion.

Differential Revision: http://reviews.llvm.org/D7673

llvm-svn: 230043
2015-02-20 19:37:14 +00:00
Philip Reames f20413245a [GC] Style cleanup for RewriteStatepointForGC (1 of many) [NFC]
Starting to update variable naming and types to match LLVM style.  This will be an incremental process to minimize the chance of breakage as I work.  Step one, rename member variables to LLVM CamelCase and use llvm's ADT.  Much more to come.

llvm-svn: 230042
2015-02-20 19:26:04 +00:00
Chris Bieneman 9b7f832935 Setting up CMake to default to Debug when no build type is specified.
Summary: Turns out if you don't set CMAKE_BUILD_TYPE the default is an empty string. This results in some of the behaviors of debug builds, but not all of them. For example ENABLE_ASSERTIONS is false.

Reviewers: rnk

Reviewed By: rnk

Subscribers: chapuni, llvm-commits

Differential Revision: http://reviews.llvm.org/D7360

llvm-svn: 230041
2015-02-20 19:02:59 +00:00
Philip Reames 2ef029c7ae Bugfix for 229954
Before calling Function::getGC to test for enablement, we need to make sure there's actually a GC at all via Function::hasGC.  Otherwise, we'd crash on functions without a GC.  Thankfully, this only mattered if you manually scheduled the pass, but still, oops. :(

llvm-svn: 230040
2015-02-20 18:56:14 +00:00
Eric Christopher 9cda4b7ed9 Remove a use of the Subtarget in the darwin ppc asm printer.
EmitFunctionStubs is called from doFinalization and so can't
depend on the Subtarget existing. It's also irrelevant as
we know we're darwin since we're in the darwin asm printer.

llvm-svn: 230039
2015-02-20 18:53:42 +00:00
Eric Christopher f734a8bae7 Get the function specific subtarget.
llvm-svn: 230038
2015-02-20 18:44:17 +00:00
Eric Christopher 1df0c519fc Get the cached subtarget off the MachineFunction rather than
inquiring for a new one from the TargetMachine.

llvm-svn: 230037
2015-02-20 18:44:15 +00:00
Oleksiy Vyalov 7a9e76216b Introduce FileSystem::CalculateMD5AsString that supports any platform and make existing FileSystem::CalculateMD5 to use it.
http://reviews.llvm.org/D7771

llvm-svn: 230036
2015-02-20 18:34:03 +00:00
Andrey Churbanov e8595de647 Two warning messages fixed.
llvm-svn: 230035
2015-02-20 18:19:41 +00:00
Andrey Churbanov fda00d095f Misprint in comment fixed
llvm-svn: 230034
2015-02-20 18:17:03 +00:00
Andrey Churbanov 613edeb89b Detect Intel MIC architecture and set some defaults at run time instead of build time.
llvm-svn: 230033
2015-02-20 18:14:43 +00:00
Andrey Churbanov 723a6b64bb Removed unused varargs from __kmpc_flush function.
llvm-svn: 230032
2015-02-20 18:09:27 +00:00
Rafael Espindola 6b07a1c6ee Add -funique-section-names and -fno-unique-section-names options.
For now -funique-section-names is the default, so no change in default behavior.

The total .o size in a build of llvm and clang goes from 241687775 to 230649031
bytes if -fno-unique-section-names is used.

llvm-svn: 230031
2015-02-20 18:08:57 +00:00
Andrey Churbanov 5c56fb55b0 Added new user-guided lock api, currently disabled. Use KMP_USE_DYNAMIC_LOCK=1 to enable it.
llvm-svn: 230030
2015-02-20 18:05:17 +00:00
Andrey Churbanov a5547bce79 Changed default stack offset for threads on non-Mac architectures to a CACHE_LINE.
llvm-svn: 230029
2015-02-20 17:57:58 +00:00
Ilia K b6f705b6ed Minor changes after r229901: move the CMICmdCmdStackSelectFrame to the end of header file
llvm-svn: 230028
2015-02-20 17:56:05 +00:00
Andrey Churbanov f790286c33 Added some compiler flags for security on Linux and Mac link stages.
llvm-svn: 230027
2015-02-20 17:55:48 +00:00
Alexey Samsonov d1c318657b [Sanitizer] Refactor SuppressionContext class.
SuppressionContext is no longer a singleton, shared by all sanitizers,
but a regular class. Each of ASan, LSan, UBSan and TSan now have their
own SuppressionContext, which only parses suppressions specific to
that sanitizer.

"suppressions" flag is moved away from common flags into tool-specific
flags, so the user now may pass
  ASAN_OPTIONS=suppressions=asan_supp.txt LSAN_OPIONS=suppressions=lsan_supp.txt
in a single invocation.

llvm-svn: 230026
2015-02-20 17:41:59 +00:00
Ilia K 57d71ac7b3 Forgot to remove initialization of MiTestCaseBase.mydir in r230022
llvm-svn: 230025
2015-02-20 17:21:57 +00:00
Sanjay Patel 1b53f74c4c canonicalize a v2f64 blendi of 2 registers
This canonicalization step saves us 3 pattern matching possibilities * 4 math ops
for scalar FP math that uses xmm regs. The backend can re-commute the operands
post-instruction-selection if that makes register allocation better.

The tests in llvm/test/CodeGen/X86/sse-scalar-fp-arith.ll cover this scenario already,
so there are no new tests with this patch.

Differential Revision: http://reviews.llvm.org/D7777

llvm-svn: 230024
2015-02-20 16:55:27 +00:00
Benjamin Kramer d50f33d996 Put MSVC back into the dumb compiler's corner.
It fails to compile std::trivially_copyable for forward-declared enums.

llvm-svn: 230023
2015-02-20 16:35:42 +00:00
Ilia K 4e892f9c6c Refactor lldb-mi tests
Summary:
This patch includes following changes:
* split lldb-mi tests into separate folders. It will make our life simpler because we can modify a test program of certain test and don't worry about other tests
* a bit refactoring
* fix comments
* improve some tests

Reviewers: emaste, clayborg, abidh

Reviewed By: clayborg, abidh

Subscribers: clayborg, lldb-commits, emaste, abidh

Differential Revision: http://reviews.llvm.org/D7762

llvm-svn: 230022
2015-02-20 16:34:33 +00:00
Benjamin Kramer f4b269bdf0 Base isPodLike on is_trivially_copyable for GCC 5 and MSVC
It would be nice to get rid of the version checks here, but that will
have to wait until libstdc++ is upgraded to 5.0 everywhere ...

llvm-svn: 230021
2015-02-20 16:19:28 +00:00
Kit Barton 263edb99ab I incorrectly marked the VORC instruction as isCommutable when I added it.
This fix removes the VORC instruction definition from the isCommutable block.

Phabricator review: http://reviews.llvm.org/D7772

llvm-svn: 230020
2015-02-20 15:54:58 +00:00
Timur Iskhodzhanov 8af971b267 [ASan] Make the argument of '__sanitizer_annotate_contiguous_container' is not aligned error message easier to understand
llvm-svn: 230019
2015-02-20 15:45:51 +00:00