Commit Graph

832 Commits

Author SHA1 Message Date
Koutheir Attouchi 16661b1a3c Expose `DIBuilder::finalizeSubprogram()` through the LLVM C API
The LLVM C API function is called `LLVMDIBuilderFinalizeSubprogram()`.

Reviewed By: CodaFi

Differential Revision: https://reviews.llvm.org/D104794
2021-09-30 20:59:41 -07:00
Alok Kumar Sharma a5b72abc9e [DebugInfo] Enhance DIImportedEntity to accept children entities
New field `elements` is added to '!DIImportedEntity', representing
list of aliased entities.
This is needed to dump optimized debugging information where all names
in a module are imported, but a few names are imported with overriding
aliases.

Reviewed By: dblaikie

Differential Revision: https://reviews.llvm.org/D109343
2021-09-16 10:41:55 +05:30
Arthur Eubanks 39e2e3bddb [NFC][C API] Make LLVMSetInstrParamAlignment's index param type LLVMAttributeIndex
It's the same as unsigned, but clearer in intent.
2021-09-07 15:13:45 -07:00
Ben Langmuir 2f53fcc831 Fix compilation errors in C API when using C compiler
* Cannot use sizeof() on another union member
* nullptr vs NULL
* () vs (void)

Incidentally, fix an incorrect comment about memory ownership on the
argument to __orc_rt_CreateCWrapperFunctionResultFromOutOfBandError,
which is copied, not moved.
2021-08-24 10:12:32 -07:00
Wael Yehia 9559bd1990 [LTO][Legacy] Add new API to check presence of ctor/dtor functions.
On AIX, the linker needs to check whether a given lto_module_t contains
any constructor/destructor functions, in order to implement the behavior
of the -bcdtors:all flag. See
https://www.ibm.com/docs/en/aix/7.2?topic=l-ld-command for the flag's
documentation.
In llvm IR, constructor (destructor) functions are added to a special
global array @llvm.global_ctors (@llvm.global_dtors).
However, because these two symbols are artificial, they are not visited
during the symbol traversal (using the
lto_module_get_[num_symbols|symbol_name|symbol_attribute] API).

This patch adds a new function to the libLTO interface that checks the
presence of one or both of these two symbols.

Reviewed By: steven_wu

Differential Revision: https://reviews.llvm.org/D106887
2021-07-28 12:41:56 +00:00
Fangrui Song 3924877932 [IR] Rename `comdat noduplicates` to `comdat nodeduplicate`
In the textual format, `noduplicates` means no COMDAT/section group
deduplication is performed. Therefore, if both sets of sections are retained, and
they happen to define strong external symbols with the same names,
there will be a duplicate definition linker error.

In PE/COFF, the selection kind lowers to `IMAGE_COMDAT_SELECT_NODUPLICATES`.
The name describes the corollary instead of the immediate semantics.  The name
can cause confusion to other binary formats (ELF, wasm) which have implemented/
want to implement the "no deduplication" selection kind. Rename it to be clearer.

Reviewed By: rnk

Differential Revision: https://reviews.llvm.org/D106319
2021-07-20 12:47:10 -07:00
Valentin Churavy 3321f4821e
Reland [Orc] Add verylazy example for C-bindings
This patch relands https://reviews.llvm.org/D104799, but fixes the
memory handling causing leak sanitizer failures.

This reverts commit a56fe117e0.
2021-07-18 21:17:49 +02:00
Valentin Churavy a56fe117e0
Revert "[Orc] Add verylazy example for C-bindings"
Broke ASAN buildbot, will reland with fixes

This reverts commit b5a6ad8c89.
2021-07-18 16:21:37 +02:00
Valentin Churavy b5a6ad8c89
[Orc] Add verylazy example for C-bindings
Still WIP, based on the Kaleidoscope/BuildingAJIT/Chapter4.

Reviewed By: lhames

Differential Revision: https://reviews.llvm.org/D104799
2021-07-18 12:07:16 +02:00
Chuanqi Xu 8a1727ba51 [Coroutines] Run coroutine passes by default
This patch make coroutine passes run by default in LLVM pipeline. Now
the clang and opt could handle IR inputs containing coroutine intrinsics
without special options.
It should be fine. On the one hand, the coroutine passes seems to be stable
since there are already many projects using coroutine feature.
On the other hand, the coroutine passes should do nothing for IR who doesn't
contain coroutine intrinsic.

Test Plan: check-llvm

Reviewed by: lxfind, aeubanks

Differential Revision: https://reviews.llvm.org/D105877
2021-07-15 14:33:40 +08:00
Valentin Churavy 45e8a0befb
[Orc] At CBindings for LazyRexports
At C bindings and an example for LLJIT with lazy reexports

Differential Revision: https://reviews.llvm.org/D104672
2021-07-01 21:52:05 +02:00
Lang Hames 662c55442f [ORC] Rename TargetProcessControl to ExecutorProcessControl. NFC.
This is a first step towards consistently using the term 'executor' for the
process that executes JIT'd code. I've opted for 'executor' as the preferred
term over 'target' as target is already heavily overloaded ("the target
machine for the executor" is much clearer than "the target machine for the
target").
2021-07-01 13:31:12 +10:00
Valentin Churavy 69e0f790e0
[Orc] Fix name of LLVMOrcIRTransformLayerSetTransform
In https://reviews.llvm.org/D103855 we added access to IRTransformLayer, but I
just noticed that the function name is following the wrong pattern.

Differential Revision: https://reviews.llvm.org/D104840
2021-06-30 21:43:34 +02:00
Lang Hames 80f30a6b85 [ORC][C-bindings] Add access to LLJIT IRTransformLayer, ThreadSafeModule utils.
This patch was derived from Valentin Churavy's work in
https://reviews.llvm.org/D104480. It adds support for setting the transform on
an IRTransformLayer, and for accessing the IRTransformLayer in LLJIT. It also
adds access to the ThreadSafeModule::withModuleDo method for thread-safe
access to modules.

A new example has been added to show how to use these APIs to optimize a module
during materialization.

Thanks Valentin!

Reviewed By: lhames

Differential Revision: https://reviews.llvm.org/D103855
2021-06-19 11:50:27 +10:00
Lang Hames 8962c68ad0 [ORC][C-bindings] Re-order object transform function arguments.
ObjInOut is an in-out parameter not a return value argument, so by convention
it should come after the context value (Ctx).
2021-06-18 22:12:39 +10:00
Lang Hames cec8e69f01 [ORC] Add support for dumping objects to the C API.
Provides ObjectTransformLayer APIs, a getter to access the
ObjectTransformLayer member of LLJIT, and the DumpObjects utility
to make construction of a dump-to-disk transform easy.

An example showing how the new APIs can be used has been added in
llvm/examples/OrcV2Examples/OrcV2CBindingsDumpObjects.
2021-06-18 20:56:45 +10:00
Jeroen Dobbelaere bb8ce25e88 Intrinsic::getName: require a Module argument
Ensure that we provide a `Module` when checking if a rename of an intrinsic is necessary.

This fixes the issue that was detected by https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=32288
(as mentioned by @fhahn), after committing D91250.

Note that the `LLVMIntrinsicCopyOverloadedName` is being deprecated in favor of `LLVMIntrinsicCopyOverloadedName2`.

Reviewed By: nikic

Differential Revision: https://reviews.llvm.org/D99173
2021-06-14 14:52:29 +02:00
Jan Kratochvil 09ac4eca66 Revert "[llvm] Sync DebugInfo.h with DebugInfoFlags.def"
This reverts commit 093750dd0b.

It broke buildbots, goint to investigate it more.
2021-06-09 10:39:57 +02:00
Jan Kratochvil 093750dd0b [llvm] Sync DebugInfo.h with DebugInfoFlags.def
Command to see the differences:
  diff -u <(sed -n 's#^HANDLE_DI_FLAG *([^,]*, *\([^()]*\)) *\(//.*\)\?$#\1#p' <llvm/include/llvm/IR/DebugInfoFlags.def | grep -vw Largest) <(sed -n 's#^ *LLVMDIFlag\([^ ]*\) *= (\?[0-9].*$#\1#p' <llvm/include/llvm-c/DebugInfo.h)

OCaml binding is more seriously out of sync but I have not tried to sync it.

Reviewed By: aprantl

Differential Revision: https://reviews.llvm.org/D103910
2021-06-09 10:11:23 +02:00
Lang Hames 40df1b15b4 [ORC][C-bindings] Replace LLVMOrcJITTargetMachineBuilderDisposeTargetTriple.
The implementation and intent behind freeing the triple string here is the same
as LLVMGetDefaultTargetTriple (and any other owned c string returned from the C
API), so we should use LLVMDisposeMessage for to free the string for
consistency.

Patch by Mats Larsen -- thanks Mats!

Reviewed By: lhames

Differential Revision: https://reviews.llvm.org/D102957
2021-05-21 17:38:06 -07:00
Mats Larsen 0c557db617 [NewPM] Add C bindings for new pass manager
This patch contains the bare minimum to run the new Pass Manager from the LLVM-C APIs. It does not feature PGOOptions, PassPlugins or Debugify in its current state. Bugzilla: PR48499

Reviewed By: aeubanks

Differential Revision: https://reviews.llvm.org/D102136
2021-05-17 11:45:47 -07:00
Nico Weber 0b33977872 Revert "[NewPM] Add C bindings for new pass manager"
This reverts commit cd220a0678.
Doesn't build.
2021-05-17 13:59:12 -04:00
Mats Larsen cd220a0678 [NewPM] Add C bindings for new pass manager
This patch contains the bare minimum to run the new Pass Manager from the LLVM-C APIs. It does not feature PGOOptions, PassPlugins or Debugify in its current state. Bugzilla: PR48499

Reviewed By: aeubanks

Differential Revision: https://reviews.llvm.org/D102136
2021-05-17 10:48:45 -07:00
cynecx 8ec9fd4839 Support unwinding from inline assembly
I've taken the following steps to add unwinding support from inline assembly:

1) Add a new `unwind` "attribute" (like `sideeffect`) to the asm syntax:

```
invoke void asm sideeffect unwind "call thrower", "~{dirflag},~{fpsr},~{flags}"()
    to label %exit unwind label %uexit
```

2.) Add Bitcode writing/reading support + LLVM-IR parsing.

3.) Emit EHLabels around inline assembly lowering (SelectionDAGBuilder + GlobalISel) when `InlineAsm::canThrow` is enabled.

4.) Tweak InstCombineCalls/InlineFunction pass to not mark inline assembly "calls" as nounwind.

5.) Add clang support by introducing a new clobber: "unwind", which lower to the `canThrow` being enabled.

6.) Don't allow unwinding callbr.

Reviewed By: Amanieu

Differential Revision: https://reviews.llvm.org/D95745
2021-05-13 19:13:03 +01:00
Lang Hames 7b73cd684a [ORC] Introduce C API for adding object buffers directly to an object layer.
This can be useful for clients constructing custom JIT stacks: If the C API
for your custom stack exposes API to obtain a reference to an object layer
(e.g. LLVMOrcLLJITGetObjLinkingLayer) then the newly added
LLVMOrcObjectLayerAddObjectFile and LLVMOrcObjectLayerAddObjectFileWithRT
functions can be used to add objects directly to that layer.
2021-05-05 19:02:13 -07:00
Lang Hames a702fa2a04 [ORC] Make LLVMOrcLLJITBuilderSetJITTargetMachineBuilder consume as advertised.
This should fix some of the memory leaks seen in the ORC C API test case.
2021-04-26 22:26:38 -07:00
Lang Hames d122d80b3d Reapply "[ORC] Add unit tests for parts of the ..." with fixes and improvements.
This reapplies 8740360093, which was reverted in bbddadd46e due to buildbot
errors.

This version checks that a JIT instance can be safely constructed, skipping
tests if it can not be. To enable this it introduces new C API to retrieve and
set the target triple for a JITTargetMachineBuilder.
2021-04-26 20:44:40 -07:00
Lang Hames c8fc5e3ba9 [ORC] C API updates.
Adds support for creating custom MaterializationUnits in the C API with the new
LLVMOrcCreateCustomMaterializationUnit function.

Modifies ownership rules for LLVMOrcAbsoluteSymbols to make it consistent with
LLVMOrcCreateCustomMaterializationUnit. This is an ABI breaking change for any
clients of the LLVMOrcAbsoluteSymbols API.

Adds LLVMOrcLLJITGetObjLinkingLayer and LLVMOrcObjectLayerEmit functions to
allow clients to get a reference to an LLJIT instance's linking layer, then
emit an object file using it. This can be used to support construction of
custom materialization units in the common case where those units will
generate an object file that needs to be emitted to complete the
materialization.
2021-04-26 13:58:37 -07:00
Lang Hames 8d718a0bff [ORC] Fix type name.
Rename JITTargetSymbolFlags to JITSymbolTargetFlags. This matches the convention
used for JITSymbolGenericFlags.
2021-04-26 13:58:37 -07:00
Lang Hames c572ff840f [ORC][C-bindings] Fix missing ')' in comments. 2021-04-24 18:04:57 -07:00
Wael Yehia 563cdeaafd [LTO][Legacy] Decouple option parsing from LTOCodeGenerator
in this patch we add a new libLTO API to specify debug options independent of an lto_code_gen_t.
This allows clients to pass codegen flags (through libLTO) which otherwise today are ignored.

Reviewed By: steven_wu

Differential Revision: https://reviews.llvm.org/D92611
2021-03-31 16:43:26 +00:00
Lang Hames 666df2e2cb [ORC][C-bindings] Fix some ORC C bindings function names and signatures.
LLVMOrcDisposeObjectLayer and LLVMOrcExecutionSessionGetJITDylibByName did not
have matching signatures between the C-API header and binding implementations.
Fixes http://llvm.org/PR49745.

Patch by Mats Larsen. Thanks Mats!

Reviewed by: lhames

Differential Revision: https://reviews.llvm.org/D99478
2021-03-28 16:30:47 -07:00
Christoffer Lernö 528f6f7d61 Add type attributes to LLVM C API
The LLVM C API is missing type attributes as is needed by attributes
such as sret and byval. This patch adds three missing wrapper
functions.

Bugzilla: https://bugs.llvm.org/show_bug.cgi?id=48249

https://reviews.llvm.org/D97763
2021-03-19 19:07:04 -04:00
gbtozers 65600cb2a7 [DebugInfo] Add DIArgList MD to store multple values in DbgVariableIntrinsics
This patch adds a new metadata node, DIArgList, which contains a list of SSA
values. This node is in many ways similar in function to the existing
ValueAsMetadata node, with the difference being that it tracks a list instead of
a single value. Internally, it uses ValueAsMetadata to track the individual
values, but there is also a reasonable amount of DIArgList-specific
value-tracking logic on top of that. Similar to ValueAsMetadata, it is a special
case in parsing and printing due to the fact that it requires a function state
(as it may reference function-local values).

This patch should not result in any immediate functional change; it allows for
DIArgLists to be parsed and printed, but debug variable intrinsics do not yet
recognize them as a valid argument (outside of parsing).

Differential Revision: https://reviews.llvm.org/D88175
2021-03-05 17:02:24 +00:00
Kazu Hirata 5032b5890b [llvm] Fix header guards (NFC)
Identified with llvm-header-guard.
2021-02-21 19:58:05 -08:00
James Y Knight 8bd8534aa3 LLVM-C: Allow LLVM{Get/Set}Alignment on an atomicrmw/cmpxchg instruction.
(Now that these can have alignment specified.)
2021-02-12 18:31:18 -05:00
Fangrui Song 6612c2bb68 [llvm-c] Move LLVMX86_AMXTypeKind & LLVMPoisonValueValueKind to the bottom to avoid value changes compared with LLVM<=11
Fixes PR48905
2021-01-27 16:28:04 -08:00
Luo, Yuanke 981a0bd858 [X86] Add x86_amx type for intel AMX.
The x86_amx is used for AMX intrisics. <256 x i32> is bitcast to x86_amx when
it is used by AMX intrinsics, and x86_amx is bitcast to <256 x i32> when it
is used by load/store instruction. So amx intrinsics only operate on type x86_amx.
It can help to separate amx intrinsics from llvm IR instructions (+-*/).
Thank Craig for the idea. This patch depend on https://reviews.llvm.org/D87981.

Differential Revision: https://reviews.llvm.org/D91927
2020-12-30 13:52:13 +08:00
Fangrui Song 6785ca0124 [llvm-c] Delete unimplemented llvm-c/LinkTimeOptimizer.h
The file was added in 2007 but the functions have never been implemented.
Having the file can only cause confusion to existing C API (llvm-c/lto.h) users.
2020-12-06 15:18:25 -08:00
Nick Lewycky fe43168348 Creating a named struct requires only a Context and a name, but looking up a struct by name requires a Module. The method on Module merely accesses the LLVMContextImpl and no data from the module itself, so this patch moves getTypeByName to a static method on StructType that takes a Context and a name.
There's a small number of users of this function, they are all updated.

This updates the C API adding a new method LLVMGetTypeByName2 that takes a context and a name.

Differential Revision: https://reviews.llvm.org/D78793
2020-11-30 11:34:12 -08:00
Zhengyang Liu 75f50e15bf Adding PoisonValue for representing poison value explicitly in IR
Define ConstantData::PoisonValue.
Add support for poison value to LLLexer/LLParser/BitcodeReader/BitcodeWriter.
Add support for poison value to llvm-c interface.
Add support for poison value to OCaml binding.
Add m_Poison in PatternMatch.

Differential Revision: https://reviews.llvm.org/D71126
2020-11-25 17:33:51 -07:00
Craig Disselkoen c3783847ae C API: support scalable vectors
This adds support for scalable vector types in the C API and in
llvm-c-test, and also adds a test to ensure that llvm-c-test can properly
roundtrip operations involving scalable vectors.

While creating this diff, I discovered that the C API cannot properly roundtrip
_constant expressions_ involving shufflevector / scalable vectors, but that
seems to be a separate enough issue that I plan to address it in a future diff
(unless reviewers feel it should be addressed here).

Differential Revision: https://reviews.llvm.org/D89816
2020-10-28 18:19:34 -04:00
Alok Kumar Sharma a6dd01afa3 [DebugInfo] Support for DW_TAG_generic_subrange
This is needed to support fortran assumed rank arrays which
have runtime rank.

  Summary:
Fortran assumed rank arrays have dynamic rank. DWARF TAG
DW_TAG_generic_subrange is needed to support that.

  Testing:
unit test cases added (hand-written)
check llvm
check debug-info

Reviewed By: aprantl

Differential Revision: https://reviews.llvm.org/D89218
2020-10-29 01:34:15 +05:30
Lang Hames f35707047e [ORC] Break up C-API header Orc.h, and add JITEventListener support.
This patch breaks Orc.h up into Orc.h, LLJIT.h and OrcEE.h.

Orc.h contain core Orc utilities.
LLJIT.h contains LLJIT specific types and functions.
OrcEE.h contains types and functions that depend on ExecutionEngine.

The intent is that these headers should match future library divisions: Clients
who only use Orc.h should only need to link againt the Orc core libraries,
clients using LLJIT.h will also need to link against LLVM core, and clients
using OrcEE.h will also have to link against ExecutionEngine.

In addition to breaking up the Orc.h header this patch introduces functions to:
(1) Set the object linking layer creation function on LLJITBuilder.
(2) Create an RTDyldObjectLinkingLayer instance (particularly for use in (1)).
(3) Register JITEventListeners with an RTDyldObjectLinkingLayer.

Together (1), (2) and (3) can be used to force use of RTDyldObjectLinkingLayer
as the underlying JIT linker for LLJIT, rather than the platform default, and
to register event listeners with the RTDyldObjectLinkingLayer.
2020-10-19 01:59:04 -07:00
Lang Hames 00369849e1 [ORC] Add function to get pool entry string.
Patch by Andres Freund. Thanks Andres!
2020-10-19 01:59:04 -07:00
Lang Hames 24afffe63a [ORC] Add C API support for defining absolute symbols.
Also tweaks the definition of TryToGenerate to make it dovetail more neatly
with the new function.
2020-10-19 01:59:04 -07:00
Lang Hames b6ca0c7dd5 [ORC] Add support for custom generators to the C bindings.
C API clients can now define a custom definition generator by providing a
callback function (to implement DefinitionGenerator::tryToGenerate) and context
object. All arguments for the DefinitionGenerator::tryToGenerate method have
been given C API counterparts, and the API allows for optionally asynchronous
generation.
2020-10-19 01:59:04 -07:00
Lang Hames 19402ce79a [Support] Add a C-API function to create a StringError instance.
This will allow C API clients to return errors from callbacks. This
functionality will be used in upcoming Orc C-bindings functions.
2020-10-19 01:59:04 -07:00
Lang Hames 91d1f417fd [ORC] Add basic ResourceTracker support to the OrcV2 C Bindings.
Based on a patch by Andres Freund. Thanks Andres!
2020-10-19 01:59:04 -07:00
Lang Hames 49c065ae70 [ORC] Rename LLVMOrcJITDylibDefinitionGeneratorRef.
The DefinitionGenerator class has been moved out of JITDylib. This updates
the C API type and function names to reflect that.
2020-10-19 01:59:04 -07:00