Commit Graph

202 Commits

Author SHA1 Message Date
Eric Christopher b9fd9ed37e Temporarily Revert "Nuke the old JIT." as it's not quite ready to
be deleted. This will be reapplied as soon as possible and before
the 3.6 branch date at any rate.

Approved by Jim Grosbach, Lang Hames, Rafael Espindola.

This reverts commits r215111, 215115, 215116, 215117, 215136.

llvm-svn: 215154
2014-08-07 22:02:54 +00:00
Rafael Espindola ea9c317000 fix configure+make build
llvm-svn: 215116
2014-08-07 14:38:49 +00:00
Rafael Espindola f8b27c41e8 Nuke the old JIT.
I am sure we will be finding bits and pieces of dead code for years to
come, but this is a good start.

Thanks to Lang Hames for making MCJIT a good replacement!

llvm-svn: 215111
2014-08-07 14:21:18 +00:00
NAKAMURA Takumi 23b702c8de [CMake] Update libdeps.
llvm-svn: 212920
2014-07-14 05:01:53 +00:00
Alp Toker e69170a110 Revert "Introduce a string_ostream string builder facilty"
Temporarily back out commits r211749, r211752 and r211754.

llvm-svn: 211814
2014-06-26 22:52:05 +00:00
Alp Toker 614717388c Introduce a string_ostream string builder facilty
string_ostream is a safe and efficient string builder that combines opaque
stack storage with a built-in ostream interface.

small_string_ostream<bytes> additionally permits an explicit stack storage size
other than the default 128 bytes to be provided. Beyond that, storage is
transferred to the heap.

This convenient class can be used in most places an
std::string+raw_string_ostream pair or SmallString<>+raw_svector_ostream pair
would previously have been used, in order to guarantee consistent access
without byte truncation.

The patch also converts much of LLVM to use the new facility. These changes
include several probable bug fixes for truncated output, a programming error
that's no longer possible with the new interface.

llvm-svn: 211749
2014-06-26 00:00:48 +00:00
Rafael Espindola c049c6574b Remove the last uses of 'using std::error_code'
This finishes the transition to std::error_code.

llvm-svn: 210877
2014-06-13 03:20:08 +00:00
Rafael Espindola 3acea39853 Don't use 'using std::error_code' in include/llvm.
This should make sure that most new uses use the std prefix.

llvm-svn: 210835
2014-06-12 21:46:39 +00:00
Craig Topper 66f09ad041 [C++11] Use 'nullptr'.
llvm-svn: 210442
2014-06-08 22:29:17 +00:00
Alp Toker 7bfa48b10b Fix build when no native target is enabled
The JITTests and MCJITTests unit test targets require a native arch with JIT
support, otherwise fail to link.

llvm-svn: 210411
2014-06-08 02:45:56 +00:00
Juergen Ributzka 34390c70a5 Add C API for thread yielding callback.
Sometimes a LLVM compilation may take more time then a client would like to
wait for. The problem is that it is not possible to safely suspend the LLVM
thread from the outside. When the timing is bad it might be possible that the
LLVM thread holds a global mutex and this would block any progress in any other
thread.

This commit adds a new yield callback function that can be registered with a
context. LLVM will try to yield by calling this callback function, but there is
no guaranteed frequency. LLVM will only do so if it can guarantee that
suspending the thread won't block any forward progress in other LLVM contexts
in the same process.

Once the client receives the call back it can suspend the thread safely and
resume it at another time.

Related to <rdar://problem/16728690>

llvm-svn: 208945
2014-05-16 02:33:15 +00:00
Juergen Ributzka bcbed0a549 Revert "[PM] Add pass run listeners to the pass manager."
Revert the current implementation and C API. New implementation and C APIs are
in the works.

llvm-svn: 208904
2014-05-15 17:49:20 +00:00
Rafael Espindola 9589f49b82 Replace a virtual with an override.
llvm-svn: 208242
2014-05-07 19:52:32 +00:00
Juergen Ributzka 4989255432 [PM] Add pass run listeners to the pass manager.
This commit provides the necessary C/C++ APIs and infastructure to enable fine-
grain progress report and safe suspension points after each pass in the pass
manager.

Clients can provide a callback function to the pass manager to call after each
pass. This can be used in a variety of ways (progress report, dumping of IR
between passes, safe suspension of threads, etc).

The run listener list is maintained in the LLVMContext, which allows a multi-
threaded client to be only informed for it's own thread. This of course assumes
that the client created a LLVMContext for each thread.

This fixes <rdar://problem/16728690>

llvm-svn: 207430
2014-04-28 18:19:25 +00:00
Elena Demikhovsky d8efd89b20 Changes in IntelJITEventListener - By Arch Robinson
- take->release: LLVM has moved to C++11.  MockWrapper became an instance of unique_ptr.

   - method symbol_iterator::increment disappeared recently, in this revision:

     r200442 | rafael | 2014-01-29 20:49:50 -0600 (Wed, 29 Jan 2014) | 9 lines

Simplify the handling of iterators in ObjectFile.

None of the object file formats reported error on iterator increment. In
retrospect, that is not too surprising: no object format stores symbols or
sections in a linked list or other structure that requires chasing pointers.
As a consequence, all error checking can be done on begin() and end().

This reduces the text segment of bin/llvm-readobj in my machine from 521233 to
518526 bytes.

My change mimics the change that the revision made to lib/DebugInfo/DWARFContext.cpp .

    - const_cast: Shut up a warning from gcc.

I ran unittests/ExecutionEngine/JIT/Debug+Asserts/JITTests to make sure it worked.

- Arch

llvm-svn: 205689
2014-04-06 11:08:33 +00:00
Saleem Abdulrasool d3bafe3e41 MCJIT: ensure that cygwin is identified properly
Cygwin is now a proper environment rather than an OS.  This updates the MCJIT
tests to avoid execution on Cygwin.  This fixes native cygwin tests.

llvm-svn: 205266
2014-03-31 23:42:23 +00:00
NAKAMURA Takumi 8800becdd1 MultiJITTest.cpp: Tweak getPointerToNamedFunction() to be aware of also Windows x64.
In import thunk, jmp is:
  - On x86, 0xFF 0x25 [disp32].
  - On x64, 0xFF 0x25 [pcrel32].

See also my r144178.

llvm-svn: 203523
2014-03-11 00:34:38 +00:00
Ahmed Charles 56440fd820 Replace OwningPtr<T> with std::unique_ptr<T>.
This compiles with no changes to clang/lld/lldb with MSVC and includes
overloads to various functions which are used by those projects and llvm
which have OwningPtr's as parameters. This should allow out of tree
projects some time to move. There are also no changes to libs/Target,
which should help out of tree targets have time to move, if necessary.

llvm-svn: 203083
2014-03-06 05:51:42 +00:00
Chandler Carruth 9a4c9e597b [Layering] Move DebugInfo.h into the IR library where its implementation
already lives.

llvm-svn: 203046
2014-03-06 00:46:21 +00:00
Chandler Carruth 12664a0b17 [Layering] Move DIBuilder.h into the IR library where its implementation
already lives.

llvm-svn: 203038
2014-03-06 00:22:06 +00:00
Ahmed Charles 96c9d95f51 [C++11] Replace OwningPtr::take() with OwningPtr::release().
llvm-svn: 202957
2014-03-05 10:19:29 +00:00
Chandler Carruth 442f784814 [cleanup] Re-sort all the includes with utils/sort_includes.py.
llvm-svn: 202811
2014-03-04 10:07:28 +00:00
Renato Golin dd8c801871 Disable old JIT unittests for AARch64
llvm-svn: 202127
2014-02-25 09:31:05 +00:00
Andrew Trick 6a162d850b Disable an MCJIT test on older Darwins until we have a better interface.
See
<rdar://16149106> [MCJIT] provide a platform-independent way to communicate callee-save frame info.
<rdar://16149279> [MCJIT] get the host OS version from a runtime check, not a configure-time check.

llvm-svn: 202082
2014-02-24 21:37:30 +00:00
Filip Pizlo d57124455b This test was failing on non-X86-64 platforms because stackmaps only work on X86-64.
Disable it on non-X86-64 platforms and add a comment.

llvm-svn: 201838
2014-02-21 03:17:31 +00:00
Filip Pizlo c95bd8d88f Stackmaps are used for OSR exits, which is a custom kind of unwinding. Hence, they
should not be marked nounwind.

Marking them nounwind caused crashes in the WebKit FTL JIT, because if we enable 
sufficient optimizations, LLVM starts eliding compact_unwind sections (or any unwind 
data for that matter), making deoptimization via stackmaps impossible.

This changes the stackmap intrinsic to be may-throw, adds a test for exactly the 
sympton that WebKit saw, and fixes TableGen to handle un-attributed intrinsics.

Thanks to atrick and philipreames for reviewing this.

llvm-svn: 201826
2014-02-20 23:57:31 +00:00
Lang Hames bbe27f9f41 Remove tautological test line (unsigneds are always >=0).
llvm-svn: 201451
2014-02-15 00:45:14 +00:00
Lang Hames 5803c24f1f Fix misleading comment.
llvm-svn: 201279
2014-02-13 00:31:14 +00:00
Lang Hames e125f5bb0e The new MCJIT C-API unit test is generating objects without constant data
sections, at least on MachO. Relax expectations to keep the bots green while I
investigate. 

llvm-svn: 201277
2014-02-13 00:16:36 +00:00
Lang Hames 937ec54951 Extend RTDyld API to enable optionally precomputing the total amount of memory
required for all sections in a module. This can be useful when targets or
code-models place strict requirements on how sections must be laid out
in memory.

If RTDyldMemoryManger::needsToReserveAllocationSpace() is overridden to return
true then the JIT will call the following method on the memory manager, which
can be used to preallocate the necessary memory.

void RTDyldMemoryManager::reserveAllocationSpace(uintptr_t CodeSize,
                                                 uintptr_t DataSizeRO,
                                                 uintptr_t DataSizeRW)

Patch by Vaidas Gasiunas. Thanks very much Viadas!

llvm-svn: 201259
2014-02-12 21:30:07 +00:00
Rafael Espindola 5b6c1e8e59 Update getLazyBitcodeModule to use ErrorOr for error handling.
llvm-svn: 199125
2014-01-13 18:31:04 +00:00
Chandler Carruth 9aca918df9 Move the LLVM IR asm writer header files into the IR directory, as they
are part of the core IR library in order to support dumping and other
basic functionality.

Rename the 'Assembly' include directory to 'AsmParser' to match the
library name and the only functionality left their -- printing has been
in the core IR library for quite some time.

Update all of the #includes to match.

All of this started because I wanted to have the layering in good shape
before I started adding support for printing LLVM IR using the new pass
infrastructure, and commandline support for the new pass infrastructure.

llvm-svn: 198688
2014-01-07 12:34:26 +00:00
Chandler Carruth 8a8cd2bab9 Re-sort all of the includes with ./utils/sort_includes.py so that
subsequent changes are easier to review. About to fix some layering
issues, and wanted to separate out the necessary churn.

Also comment and sink the include of "Windows.h" in three .inc files to
match the usage in Memory.inc.

llvm-svn: 198685
2014-01-07 11:48:04 +00:00
Nico Weber 62588e1a86 Port r198087 and r198089 (strip dead code by default) from make to cmake.
llvm-svn: 198198
2013-12-30 03:36:05 +00:00
Nico Weber 01728f5407 Attempt to fix JIT unit tests after r198087.
llvm-svn: 198089
2013-12-27 23:36:22 +00:00
Richard Barton ba165ccdeb Remove some dead code
llvm-svn: 197144
2013-12-12 11:18:08 +00:00
NAKAMURA Takumi b5c4b87690 [CMake] Update LLVM_LINK_COMPONENTS for each CMakeLists.txt.
llvm-svn: 196908
2013-12-10 11:13:32 +00:00
NAKAMURA Takumi db0768cb8c Add JIT to LINK_COMPONENTS in MCJITTests/Makefile.
llvm-svn: 196907
2013-12-10 11:12:35 +00:00
Juergen Ributzka 05c5a93283 [weak vtables] Place class definitions into anonymous namespaces to prevent weak vtables.
This patch places class definitions in implementation files into anonymous
namespaces to prevent weak vtables. This eliminates the need of providing an
out-of-line definition to pin the vtable explicitly to the file.

llvm-svn: 195092
2013-11-19 03:08:35 +00:00
Juergen Ributzka d12ccbd343 [weak vtables] Remove a bunch of weak vtables
This patch removes most of the trivial cases of weak vtables by pinning them to
a single object file. The memory leaks in this version have been fixed. Thanks
Alexey for pointing them out.

Differential Revision: http://llvm-reviews.chandlerc.com/D2068

Reviewed by Andy

llvm-svn: 195064
2013-11-19 00:57:56 +00:00
Alexey Samsonov 49109a279c Revert r194865 and r194874.
This change is incorrect. If you delete virtual destructor of both a base class
and a subclass, then the following code:
  Base *foo = new Child();
  delete foo;
will not cause the destructor for members of Child class. As a result, I observe
plently of memory leaks. Notable examples I investigated are:
ObjectBuffer and ObjectBufferStream, AttributeImpl and StringSAttributeImpl.

llvm-svn: 194997
2013-11-18 09:31:53 +00:00
Juergen Ributzka dbedae89b9 [weak vtables] Remove a bunch of weak vtables
This patch removes most of the trivial cases of weak vtables by pinning them to
a single object file.

Differential Revision: http://llvm-reviews.chandlerc.com/D2068

Reviewed by Andy

llvm-svn: 194865
2013-11-15 22:34:48 +00:00
Andrew Kaylor 9217452f30 Removing unnecessary link component for MCJIT unittests
llvm-svn: 193125
2013-10-21 22:35:06 +00:00
Rafael Espindola 40a3d01849 Assert on duplicate registration. Don't depend on function pointer equality.
Before this patch we would assert when building llvm as multiple shared
libraries (cmake's BUILD_SHARED_LIBS). The problem was the line

if (T.AsmStreamerCtorFn == Target::createDefaultAsmStreamer)

which returns false because of -fvisibility-inlines-hidden. It is easy
to fix just this one case, but I decided to try to also make the
registration more strict. It looks like the old logic for ignoring
followup registration was just a temporary hack that outlived its
usefulness.

This patch converts the ifs to asserts, fixes the few cases that were
registering twice and makes sure all the asserts compare with null.

Thanks for Joerg for reporting the problem and reviewing the patch.

llvm-svn: 192803
2013-10-16 16:21:40 +00:00
Tim Northover 39ddb3f9c1 MCJIT: skip some more new multi-module tests on unsupported platforms.
This should fix the i386 Darwin build-bot.

llvm-svn: 191840
2013-10-02 16:11:07 +00:00
Filip Pizlo 7aa695e026 This threads SectionName through the allocateCodeSection/allocateDataSection APIs, both in C++ and C land.
It's useful for the memory managers that are allocating a section to know what the name of the section is.  
At a minimum, this is useful for low-level debugging - it's customary for JITs to be able to tell you what 
memory they allocated, and as part of any such dump, they should be able to tell you some meta-data about 
what each allocation is for.  This allows clients that supply their own memory managers to do this.  
Additionally, we also envision the SectionName being useful for passing meta-data from within LLVM to an LLVM 
client.

This changes both the C and C++ APIs, and all of the clients of those APIs within LLVM.  I'm assuming that 
it's safe to change the C++ API because that API is allowed to change.  I'm assuming that it's safe to change 
the C API because we haven't shipped the API in a release yet (LLVM 3.3 doesn't include the MCJIT memory 
management C API).

llvm-svn: 191804
2013-10-02 00:59:25 +00:00
Andrew Kaylor 6bbb2c9fcd Tests for MCJIT multiple module support
llvm-svn: 191723
2013-10-01 01:48:36 +00:00
Rafael Espindola 05b5a46ed8 Revert "[PowerPC] Improve consistency in use of __ppc__, __powerpc__, etc."
This reverts commit r187248. It broke many bots.

llvm-svn: 187254
2013-07-26 22:13:57 +00:00
Bill Schmidt 419f7c2345 [PowerPC] Improve consistency in use of __ppc__, __powerpc__, etc.
Both GCC and LLVM will implicitly define __ppc__ and __powerpc__ for
all PowerPC targets, whether 32- or 64-bit.  They will both implicitly
define __ppc64__ and __powerpc64__ for 64-bit PowerPC targets, and not
for 32-bit targets.  We cannot be sure that all other possible
compilers used to compile Clang/LLVM define both __ppc__ and
__powerpc__, for example, so it is best to check for both when relying
on either inside the Clang/LLVM code base.

This patch makes sure we always check for both variants.  In addition,
it fixes one unnecessary check in lib/Target/PowerPC/PPCJITInfo.cpp.
(At least one of __ppc__ and __powerpc__ should always be defined when
compiling for a PowerPC target, no matter which compiler is used, so
testing for them is unnecessary.)

There are some places in the compiler that check for other variants,
like __POWERPC__ and _POWER, and I have left those in place.  There is
no need to add them elsewhere.  This seems to be in Apple-specific
code, and I won't take a chance on breaking it.

There is no intended change in behavior; thus, no test cases are
added.

llvm-svn: 187248
2013-07-26 21:39:15 +00:00
Akira Hatanaka 2e2362462f [mips] Use pristine object file while processing relocations.
Similar to ARM change r182800, dynamic linker will read bits/addends from
    the original object rather than from the object that might have been patched
    previously. For the purpose of relocations for MCJIT stubs on MIPS, we
    internally use otherwise unused MIPS relocations.
    
    The change also enables MCJIT unit tests for MIPS (EL/BE), and the following
    two tests now pass:
    
    - MCJITTest.return_global and
    - MCJITTest.multiple_functions.
    
    These issues have been tracked as Bug 16250.

    Patch by Petar Jovanovic.

llvm-svn: 187019
2013-07-24 01:58:40 +00:00