Commit Graph

215 Commits

Author SHA1 Message Date
Nick Lewycky
fe47ebfad3 Add 'nonnull', a new parameter and return attribute which indicates that the pointer is not null. Instcombine will elide comparisons between these and null. Patch by Luqman Aden!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209185 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-20 01:23:40 +00:00
Juergen Ributzka
9bc1b73c9e 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>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208945 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-16 02:33:15 +00:00
Juergen Ributzka
218bad2bc5 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208904 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-15 17:49:20 +00:00
Rafael Espindola
834384bf5b Split GlobalValue into GlobalValue and GlobalObject.
This allows code to statically accept a Function or a GlobalVariable, but
not an alias. This is already a cleanup by itself IMHO, but the main
reason for it is that it gives a lot more confidence that the refactoring to fix
the design of GlobalAlias is correct. That will be a followup patch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208716 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-13 18:45:48 +00:00
Juergen Ributzka
4e0cc51d79 [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>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207430 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-28 18:19:25 +00:00
Tom Stellard
57f45392e2 Added new functionality to LLVM C API to use DiagnosticInfo to handle errors
Patch by: Darren Powell

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206407 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-16 17:45:04 +00:00
Tim Northover
b7dec2139c llvm-c: expose unnamedaddr field of globals
Patch by Manuel Jacob.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203482 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-10 19:24:35 +00:00
Chandler Carruth
7c00d18607 [Modules] Fix a layering issue that is actually impacting the modules
selfhost.

The 'Core.h' C-API header is part of the IR LLVM library. (One might
even argue it should be called IR.h, but that's a separate point.) We
can't include it into a Support header without violating the layering,
and in a way that breaks modules. MemoryBuffer's opaque C type was being
defined in the Core.h C-API header despite being in the Support library,
and thus we ended up with this weird issue.

It turns out that there were other constructs from the Support library
in the Core.h header. This patch lifts all of them into Support.h and
then includes that into Core.h.

The only possible fallout is if someone was including Support.h and
relying on Core.h to be visible for their own uses. Considering the
narrow interface actually provided by the C-API for the Support library,
this seems a very, very unlikely mistake.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203071 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-06 04:13:12 +00:00
Peter Zotov
8a25ef92fb [C API] Implement LLVM{Get,Set}Alignment for AllocaInst.
Patch by Manuel Jacob.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202936 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-05 05:05:34 +00:00
Reid Kleckner
1372b78679 C API: Add functions to get or set a GlobalValue's DLLStorageClass
Patch by Manuel Jacob!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202928 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-05 02:34:23 +00:00
Nico Rieck
38f68c5a2e Decouple dllexport/dllimport from linkage
Representing dllexport/dllimport as distinct linkage types prevents using
these attributes on templates and inline functions.

Instead of introducing further mixed linkage types to include linkonce and
weak ODR, the old import/export linkage types are replaced with a new
separate visibility-like specifier:

  define available_externally dllimport void @f() {}
  @Var = dllexport global i32 1, align 4

Linkage for dllexported globals and functions is now equal to their linkage
without dllexport. Imported globals and functions must be either
declarations with external linkage, or definitions with
AvailableExternallyLinkage.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199218 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-14 15:22:47 +00:00
Nico Rieck
55463f4ec1 Revert "Decouple dllexport/dllimport from linkage"
Revert this for now until I fix an issue in Clang with it.

This reverts commit r199204.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199207 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-14 12:38:32 +00:00
Nico Rieck
bce07a0c3b Decouple dllexport/dllimport from linkage
Representing dllexport/dllimport as distinct linkage types prevents using
these attributes on templates and inline functions.

Instead of introducing further mixed linkage types to include linkonce and
weak ODR, the old import/export linkage types are replaced with a new
separate visibility-like specifier:

  define available_externally dllimport void @f() {}
  @Var = dllexport global i32 1, align 4

Linkage for dllexported globals and functions is now equal to their linkage
without dllexport. Imported globals and functions must be either
declarations with external linkage, or definitions with
AvailableExternallyLinkage.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199204 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-14 11:55:03 +00:00
Reid Kleckner
4b70bfc905 Begin adding docs and IR-level support for the inalloca attribute
The inalloca attribute is designed to support passing C++ objects by
value in the Microsoft C++ ABI.  It behaves the same as byval, except
that it always implies that the argument is in memory and that the bytes
are never copied.  This attribute allows the caller to take the address
of an outgoing argument's memory and execute arbitrary code to store
into it.

This patch adds basic IR support, docs, and verification.  It does not
attempt to implement any lowering or fix any possibly broken transforms.

When this patch lands, a complete description of this feature should
appear at http://llvm.org/docs/InAlloca.html .

Differential Revision: http://llvm-reviews.chandlerc.com/D2173

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197645 91177308-0d34-0410-b5e6-96231b3b80d8
2013-12-19 02:14:12 +00:00
Filip Pizlo
d54beffaa3 Expose the fence instruction via the C API.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195173 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-20 00:07:49 +00:00
Matt Arsenault
59d3ae6cdc Add addrspacecast instruction.
Patch by Michele Scandale!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194760 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-15 01:34:59 +00:00
Filip Pizlo
9defe9a7cc This exposes the new calling conventions (WebKit_JS and AnyReg) via the C API by adding them to the enumeration in Core.h.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194323 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-09 06:00:03 +00:00
Peter Zotov
14bbb1d9b0 [llvm-c] Implement LLVMPrintValueToString
Original patch by Chris Wailes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194135 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-06 09:21:01 +00:00
Peter Zotov
0fac3dfa41 [llvm-c] (PR16190) Add LLVMIsA* functions for ConstantDataSequential and subclasses
Original patch by David Monniaux

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194074 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-05 12:55:37 +00:00
Filip Pizlo
fa0da86a59 Make the pretty stack trace be an opt-in, rather than opt-out, facility. Enable pretty
stack traces by default if you use PrettyStackTraceProgram, so that existing LLVM-based 
tools will continue to get it without any changes.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193971 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-04 02:22:25 +00:00
Filip Pizlo
153d6191c9 Add a comment to note that LLVMDisablePrettyStackTrace() is likely not a good long-term solution.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193939 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-03 04:38:31 +00:00
Filip Pizlo
35a1e9414d When LLVM is embedded in a larger application, it's not OK for LLVM to intercept crashes. LLVM already has
the ability to disable this functionality.  This patch exposes it via the C API.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193937 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-03 00:29:47 +00:00
Rafael Espindola
19794da02c Remove linkonce_odr_auto_hide.
linkonce_odr_auto_hide was in incomplete attempt to implement a way
for the linker to hide symbols that are known to be available in every
TU and whose addresses are not relevant for a particular DSO.

It was redundant in that it all its uses are equivalent to
linkonce_odr+unnamed_addr. Unlike those, it has never been connected
to clang or llvm's optimizers, so it was effectively dead.

Given that nothing produces it, this patch just nukes it
(other than the llvm-c enum value).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193865 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-01 17:09:14 +00:00
Anders Waldenborg
7959f209ba llvm-c: Make LLVM{Get,Set}Alignment work on {Load,Store}Inst too
Patch by Peter Zotov

Differential Revision: http://llvm-reviews.chandlerc.com/D1910



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193597 91177308-0d34-0410-b5e6-96231b3b80d8
2013-10-29 09:02:02 +00:00
NAKAMURA Takumi
e21c3137e1 include/llvm-c: Whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193253 91177308-0d34-0410-b5e6-96231b3b80d8
2013-10-23 17:56:29 +00:00
Benjamin Kramer
f39fe46062 Mark zero-argument functions explicitly in C headers.
Pacifies GCC's -Wstrict-prototypes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193249 91177308-0d34-0410-b5e6-96231b3b80d8
2013-10-23 16:57:34 +00:00
Anders Waldenborg
18b9105d02 llvm-c: Add LLVMPrintTypeToString
Differential Revision: http://llvm-reviews.chandlerc.com/D1963



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193149 91177308-0d34-0410-b5e6-96231b3b80d8
2013-10-22 06:58:34 +00:00
Filip Pizlo
0739140b05 Expose install_fatal_error_handler() through the C API.
I expose the API with some caveats:

- The C++ API involves a traditional void* opaque pointer for the fatal 
error callback.  The C API doesn’t do this.  I don’t think that the void* 
opaque pointer makes any sense since this is a global callback - there will 
only be one of them.  So if you need to pass some data to your callback, 
just put it in a global variable.

- The bindings will ignore the gen_crash_diag boolean.  I ignore it because 
(1) I don’t know what it does, (2) it’s not documented AFAIK, and (3) I 
couldn’t imagine any use for it.  I made the gut call that it probably 
wasn’t important enough to expose through the C API.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192864 91177308-0d34-0410-b5e6-96231b3b80d8
2013-10-17 01:38:28 +00:00
Anders Waldenborg
75a5df1d1e llvm-c: Add LLVMDumpType
The C API currently allows to dump values (LLVMDumpValue), but a similar method for types was not exported.

Patch by Peter Zotov

Differential Revision: http://llvm-reviews.chandlerc.com/D1911



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192852 91177308-0d34-0410-b5e6-96231b3b80d8
2013-10-16 21:30:25 +00:00
Anders Waldenborg
2906b519d1 [llvm-c] Add LLVMPrintModuleToString.
Like LLVMDumpModule but returns the string (that needs to be freed
with LLVMDisposeMessage) instead of printing it to stderr.

Differential Revision: http://llvm-reviews.chandlerc.com/D1941



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192821 91177308-0d34-0410-b5e6-96231b3b80d8
2013-10-16 18:00:54 +00:00
Andrea Di Biagio
5768bb8d77 Add function attribute 'optnone'.
This function attribute indicates that the function is not optimized
by any optimization or code generator passes with the 
exception of interprocedural optimization passes.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189101 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-23 11:53:55 +00:00
Daniel Dunbar
1323006423 [typo] An LLVM.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188589 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-16 23:30:19 +00:00
Diego Novillo
77226a03dc Add a new function attribute 'cold' to functions.
Other than recognizing the attribute, the patch does little else.
It changes the branch probability analyzer so that edges into
blocks postdominated by a cold function are given low weight.

Added analysis and code generation tests.  Added documentation for the
new attribute.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182638 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-24 12:26:52 +00:00
Filip Pizlo
6cfed36338 Expose the RTDyldMemoryManager through the C API. This allows clients of
the C API to provide their own way of allocating JIT memory (both code 
and data) and finalizing memory permissions (page protections, cache 
flush).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182448 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-22 02:46:43 +00:00
Filip Pizlo
1441bf7a41 Roll out r182407 and r182408 because they broke builds.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182409 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-21 20:03:01 +00:00
Filip Pizlo
52755c472a Expose the RTDyldMemoryManager through the C API. This allows clients of
the C API to provide their own way of allocating JIT memory (both code 
and data) and finalizing memory permissions (page protections, cache 
flush).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182408 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-21 20:00:56 +00:00
Duncan Sands
5d042c6374 Fix formatting. Patch by o11c.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181189 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-06 08:55:45 +00:00
Carlo Kok
d86871dd71 c vs c++ mistake in header file typedef for AtomicRMW fix in rev 180100.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180104 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-23 13:45:37 +00:00
Carlo Kok
8effd8dc98 Expose IRBuilder::CreateAtomicRMW as LLVMBuildAtomicRMW in llvm-c.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180100 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-23 13:21:19 +00:00
Eric Christopher
3e39731e88 Move C++ code out of the C headers and into either C++ headers
or the C++ files themselves. This enables people to use
just a C compiler to interoperate with LLVM.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180063 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-22 22:47:22 +00:00
Tom Stellard
4bfeee1302 C API: Fix coding style
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179785 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-18 19:50:53 +00:00
Tom Stellard
edc93b356d C API: Add LLVMGetBufferSize()
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179647 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-16 23:12:51 +00:00
Tom Stellard
4074343b2d C API: Add LLVMGetBufferStart()
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179646 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-16 23:12:47 +00:00
Tom Stellard
68ee1520ce C API: Add LLVMAddTargetDependentFunctionAttr()
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179645 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-16 23:12:43 +00:00
Hans Wennborg
6334e1351f Add four new functions and one new enum to the C API:
LLVMGetThreadLocalMode - exposes GlobalVariable::getThreadLocalMode
LLVMSetThreadLocalMode - exposes GlobalVariable::setThreadLocalMode
LLVMIsExternallyInitialized - exposes GlobalVariable::isExternallyInitialized
LLVMSetExternallyInitialized - exposes GlobalVariable::setExternallyInitialized
LLVMThreadLocalMode - maps to GlobalVariable::ThreadLocalMode

Patch by Moritz Maxeiner!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179588 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-16 08:58:59 +00:00
Evan Cheng
9313da5a90 Revert r178713
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178769 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-04 17:40:53 +00:00
Evan Cheng
7d2166a643 Make it possible to include llvm-c without including C++ headers. Patch by Filip Pizlo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178713 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-03 23:12:39 +00:00
Duncan Sands
906727dcfe Add multithreading functions and shutdown to the C API. Patch by Moritz
Maxeiner.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175398 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-17 16:35:51 +00:00
Bill Wendling
296756a2b5 s/bool/LLVMBool/
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175203 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-14 19:39:14 +00:00
Bill Wendling
31cfc70705 Add two new functions to the C API:
LLVMCreateMemoryBufferWithMemoryRange - exposes MemoryBuffer::getMemBuffer
 LLVMCreateMemoryBufferWithMemoryRangeCopy - exposes MemoryBuffer::getMemBufferCopy

Patch by Moritz Maxeiner!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175199 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-14 19:11:28 +00:00