Kai Nacke [Wed, 16 Dec 2020 11:01:08 +0000 (06:01 -0500)]
[Doc][SystemZ] Add Linux/SystemZ to Getting Started guide.
The Linux/SystemZ platform is missing in the Getting Started guide
as platform on which LLVM is known to work.
Reviewed by: uweigand
Differential Revision: https://reviews.llvm.org/D93388
Florian Hahn [Wed, 16 Dec 2020 11:30:01 +0000 (11:30 +0000)]
[InstCombine] Precommit tests for !annotation metadata handling.
Matt Arsenault [Wed, 16 Dec 2020 15:25:07 +0000 (10:25 -0500)]
LangRef: Update byval/sret description for required types
Tim Keith [Wed, 16 Dec 2020 15:06:53 +0000 (07:06 -0800)]
[flang] Handle multiple names for same operator
Some operators have more than one name, e.g. operator(==), operator(.eq).
That was working correctly in generic definitions but they can also
appear in other contexts: USE statements and access statements, for
example.
This changes FindInScope to always look for each of the names for
a symbol. So an operator may be use-associated under one name but
declared private under another name and it will be the same symbol.
This replaces GenericSpecInfo::FindInScope which was only usable in
some cases.
Add a version of FindInScope() that looks in the current scope to
simplify many of the calls.
Differential Revision: https://reviews.llvm.org/D93344
Erik Pilkington [Tue, 15 Dec 2020 22:01:20 +0000 (17:01 -0500)]
NFC: balance a quote in AttrDocs.td
This was confusing my editor.
Erik Pilkington [Tue, 15 Dec 2020 22:00:20 +0000 (17:00 -0500)]
[Sema] Fix a miscompile by retaining array qualifiers when folding VLAs to constant arrays
rdar://
72243125
Differential revision: https://reviews.llvm.org/D93247
Paul C. Anagnostopoulos [Fri, 11 Dec 2020 21:19:52 +0000 (16:19 -0500)]
[TableGen] Slim down the data structures in xxxGenInstrInfo.inc, step 1
Simon Pilgrim [Wed, 16 Dec 2020 14:42:08 +0000 (14:42 +0000)]
[X86] Regenerate bit extraction tests, cleaning up check-prefixes.
As noticed on D92965, we needed to simplify the prefixes to ensure all RUNs were properly covered.
We should never have a target with BMI2 without BMI1, so use that as the 'BMI level' and then check with/without TBM (all TBM targets have at least BMI1).
Simon Pilgrim [Wed, 16 Dec 2020 13:31:10 +0000 (13:31 +0000)]
[X86] Rename reduction combiners to make it clearer whats happening. NFCI.
Since these are all working on reduction patterns, actually use that term in the function name to make them easier to search for.
At some point we're likely to start working with the ISD::VECREDUCE_* opcodes directly in the x86 backend, but that is still some way off.
Mitch Phillips [Wed, 16 Dec 2020 14:36:22 +0000 (06:36 -0800)]
[sanitizer-common] Force pickup of llvm-symbolizer from new binaries.
It's possible currently that the sanitizer runtimes when testing grab
the path to the symbolizer through *SAN_SYMBOLIZER_PATH=...
This can be polluted by things like Android's setup script. This patch
forces external_symbolizer_path=$new_build_out_dir/llvm-symbolizer when
%env_tool_options is used.
Reviewed By: vitalybuka
Differential Revision: https://reviews.llvm.org/D93352
diggerlin [Wed, 16 Dec 2020 14:34:59 +0000 (09:34 -0500)]
[XCOFF][AIX] Emit EH information in traceback table
SUMMARY:
In order for the runtime on AIX to find the compact unwind section(EHInfo table),
we would need to set the following on the traceback table:
The 6th byte's longtbtable field to true to signal there is an Extended TB Table Flag.
The Extended TB Table Flag to be 0x08 to signal there is an exception handling info presents.
Emit the offset between ehinfo TC entry and TOC base after all other optional portions of traceback table.
The patch is authored by Jason Liu.
Reviewers: David Tenty, Digger Lin
Differential Revision: https://reviews.llvm.org/D92766
Caroline Concatto [Thu, 10 Dec 2020 17:23:46 +0000 (17:23 +0000)]
[SLPVectorizer]Migrate getEntryCost to return InstructionCost
This patch also changes:
the return type of getGatherCost and
the signature of the debug function dumpTreeCosts
to use InstructionCost.
This patch is part of a series of patches to use InstructionCost instead of
unsigned/int for the cost model functions.
See this thread for context:
http://lists.llvm.org/pipermail/llvm-dev/2020-November/146408.html
See this patch for the introduction of the type:
https://reviews.llvm.org/D91174
Depends on D93049
Differential Revision: https://reviews.llvm.org/D93127
Denis Antrushin [Tue, 15 Dec 2020 12:14:39 +0000 (19:14 +0700)]
[Statepoints] Extract invoke tests into separate file. NFC.
Extract VReg lowering tests with invokes into separate file
for easier maintenance/modification.
Check MIR after register allocation - at this point all
transformations we're interested in has been applied and verifying
of MIR is simpler than that of assembly.
Stephan Bergmann [Wed, 16 Dec 2020 11:46:10 +0000 (12:46 +0100)]
[PATCH] [compiler-rt] [builtins] Fix name of __aarch64_have_lse_atomics on Darwin
...where the name of that variable defined in
compiler-rt/lib/builtins/cpu_model.c is decorated with a leading underscore
Differential Revision: https://reviews.llvm.org/D93390
Bradley Smith [Wed, 9 Dec 2020 11:03:54 +0000 (11:03 +0000)]
[CostModel] Add costs for llvm.experimental.vector.{extract,insert} intrinsics
Adds cost model support for the new llvm.experimental.vector.{extract,insert}
intrinsics, using the existing getExtractSubvectorOverhead and
getInsertSubvectorOverhead functions for shuffles.
Previously this case would throw an assertion.
Differential Revision: https://reviews.llvm.org/D93043
ergawy [Wed, 16 Dec 2020 13:20:24 +0000 (08:20 -0500)]
[mlir][spirv] Add parsing and printing support for SpecConstantOperation
Adds more support for `SpecConstantOperation` by defining a custom
syntax for the op and implementing its parsing and printing.
Reviewed By: mravishankar, antiagainst
Differential Revision: https://reviews.llvm.org/D92919
Caroline Concatto [Thu, 10 Dec 2020 13:52:35 +0000 (13:52 +0000)]
[CostModel]Migrate getTreeCost() to use InstructionCost
This patch changes the type of cost variables (for instance: Cost, ExtractCost,
SpillCost) to use InstructionCost.
This patch also changes the type of cost variables to InstructionCost in other
functions that use the result of getTreeCost()
This patch is part of a series of patches to use InstructionCost instead of
unsigned/int for the cost model functions.
See this thread for context:
http://lists.llvm.org/pipermail/llvm-dev/2020-November/146408.html
Depends on D91174
Differential Revision: https://reviews.llvm.org/D93049
Caroline Concatto [Wed, 25 Nov 2020 12:06:27 +0000 (12:06 +0000)]
[CostModel]Replace FixedVectorType by VectorType in costgetIntrinsicInstrCost
This patch replaces FixedVectorType by VectorType in getIntrinsicInstrCost
in BasicTTIImpl.h. It re-arranges the scalable type test earlier return
and add tests for scalable types.
Depends on D91532
Differential Revision: https://reviews.llvm.org/D92094
Joe Ellis [Wed, 16 Dec 2020 09:01:28 +0000 (09:01 +0000)]
[clang][AArch64][SVE] Avoid going through memory for VLAT <-> VLST casts
This change makes use of the llvm.vector.extract intrinsic to avoid
going through memory when performing bitcasts between vector-length
agnostic types and vector-length specific types.
Depends on D91362
Reviewed By: c-rhodes
Differential Revision: https://reviews.llvm.org/D92761
Muhammad Omair Javaid [Wed, 16 Dec 2020 11:09:24 +0000 (16:09 +0500)]
[LLDB] Skip TestGuiBasicDebug.py on Arm and AArch64/Linux
TestGuiBasicDebug.py is intermittenly timing out on LLDB AArch64/Linux
buildbot. Putting SkipIf decorator untill root cuase is identified.
Bangtian Liu [Wed, 16 Dec 2020 11:51:26 +0000 (11:51 +0000)]
Revert "Ensure SplitEdge to return the new block between the two given blocks"
This reverts commit
cf638d793c489632bbcf0ee0fbf9d0f8c76e1f48.
Simon Pilgrim [Wed, 16 Dec 2020 11:24:19 +0000 (11:24 +0000)]
[X86][SSE] combineReductionToHorizontal - don't rely on widenSubVector to handle illegal vector types.
Thanks to @asbirlea for reporting the bug.
Muhammad Omair Javaid [Wed, 16 Dec 2020 11:02:54 +0000 (16:02 +0500)]
Revert "[LLDB] Remove AArch64/Linux xfail decorator from TestGuiBasicDebug"
This reverts commit
3d27a99b2ed24e1951483cf13357ec188ad44bb0.
Georgii Rymar [Wed, 9 Dec 2020 13:46:42 +0000 (16:46 +0300)]
[yaml2obj/obj2yaml] - Make Value/Size fields of Symbol optional.
When a field is optional we can use the `=<none>` syntax in macros.
This patch makes `Value`/`Size` fields of `Symbol` optional
and adds test cases for them.
Differential revision: https://reviews.llvm.org/D93010
Georgii Rymar [Tue, 15 Dec 2020 12:45:15 +0000 (15:45 +0300)]
[lib/Object] - Make ELFObjectFile::getSymbol() return Expected<>.
This was requested in comments for D93209:
https://reviews.llvm.org/D93209#inline-871192
D93209 fixes an issue with `ELFFile<ELFT>::getEntry`,
after what `getSymbol` starts calling `report_fatal_error` for previously
missed invalid cases.
This patch makes it return `Expected<>` and updates callers.
For few of them I had to add new `report_fatal_error` calls. But I see no
way to avoid it currently. The change would affects too many places, e.g:
`getSymbolBinding` and other methods are used from `ELFSymbolRef`
which is used in too many places across LLVM.
Differential revision: https://reviews.llvm.org/D93297
Georgii Rymar [Fri, 4 Dec 2020 08:54:03 +0000 (11:54 +0300)]
[llvm-readelf/obj] - Handle out-of-order PT_LOADs better.
This is https://bugs.llvm.org/show_bug.cgi?id=45698.
Specification says that
"Loadable segment entries in the program header table appear
in ascending order, sorted on the p_vaddr member."
Our `toMappedAddr()` relies on this condition. This patch
adds a warning when the sorting order of loadable segments is wrong.
In this case we force segments sorting and that allows
`toMappedAddr()` to work as expected.
Differential revision: https://reviews.llvm.org/D92641
Jan Svoboda [Tue, 15 Dec 2020 12:08:04 +0000 (13:08 +0100)]
[clang][cli] Port DependencyOutput string based options to new option parsing system
Depends on D84186
Reviewed By: dexonsmith
Differential Revision: https://reviews.llvm.org/D84187
Piotr Sobczak [Wed, 16 Dec 2020 09:12:54 +0000 (10:12 +0100)]
[AMDGPU] Avoid calling copyFastMathFlags in wrong context
Calling Instruction::copyFastMathFlags() assumes the caller is
FPMathOperator. Avoid calling the function for instructions
that are not instances of FPMathOperator.
Qiu Chaofan [Wed, 16 Dec 2020 09:19:54 +0000 (17:19 +0800)]
[NFC] Pre-commit test for long-double builtins
This test reflects clang behavior on long-double type math library
builtins under default or explicit 128-bit long-double options.
Jan Svoboda [Wed, 16 Dec 2020 09:05:09 +0000 (10:05 +0100)]
[clang][cli] Port LangOpts option flags to new option parsing system
Depends on D83892 & D83694 & D93104.
Reviewed By: dexonsmith
Differential Revision: https://reviews.llvm.org/D83979
Sebastian Neubauer [Tue, 15 Dec 2020 10:15:53 +0000 (11:15 +0100)]
[AMDGPU] Allow no saddr for global addtid insts
I think the global_load/store_dword_addtid instructions support
switching off the scalar address.
Add assembler and disassembler support for this.
Differential Revision: https://reviews.llvm.org/D93288
Jan Svoboda [Fri, 11 Dec 2020 14:41:35 +0000 (15:41 +0100)]
[clang][cli] Port CodeGen option flags to new option parsing system
Depends on D83697.
Reviewed By: dexonsmith
Differential Revision: https://reviews.llvm.org/D83892
Alexander Belyaev [Wed, 16 Dec 2020 07:38:12 +0000 (08:38 +0100)]
[mlir] Lookup the latest value with a legal type when remapping values.
The current condition implies that the target materialization will be
called even if the type is the new operand type is legal, but slightly
different. For example, if there is a bufferization pattern that changes
memref layout, then target materialization for an illegal type
(TensorType) would be called.
Differential Revision: https://reviews.llvm.org/D93126
Jan Svoboda [Wed, 9 Dec 2020 12:26:39 +0000 (13:26 +0100)]
[clang][cli] Prevent double denormalization
If both flags created through BoolOption are CC1Option and the keypath has a non-default or non-implied value, the denormalizer gets called twice. If the denormalizer has the ability to generate both flags, we can end up generating the same flag twice.
Reviewed By: dexonsmith, Bigcheese
Differential Revision: https://reviews.llvm.org/D93094
Jan Svoboda [Tue, 8 Dec 2020 17:15:21 +0000 (18:15 +0100)]
[clang][cli] Do not marshall only CC1Option flags in BoolOption
We cannot be sure whether a flag is CC1Option inside the definition of `BoolOption`. Take the example below:
```
let Flags = [CC1Option] in {
defm xxx : BoolOption<...>;
}
```
where TableGen applies `Flags = [CC1Option]` to the `xxx` and `no_xxx` records **after** they have been is fully declared by `BoolOption`.
For the refactored `-f[no-]debug-pass-manager` flags (see the diff), this means `BoolOption` never adds any marshalling info, as it doesn't see either of the flags as `CC1Option`.
For that reason, we should defensively append the marshalling information to both flags inside `BoolOption`. Now the check for `CC1Option` needs to happen later, in the parsing macro, when all TableGen logic has been resolved.
However, for some flags defined through `BoolOption`, we can run into issues:
```
// Options.td
def fenable_xxx : /* ... */;
// Both flags are CC1Option, the first is implied.
defm xxx : BoolOption<"xxx,
"Opts.Xxx", DefaultsToFalse,
ChangedBy<PosFlag, [CC1Option], "", [fenable_xxx]>,
ResetBy<NegFlag, [CC1Option]>>;
```
When parsing `clang -cc1 -fenable-xxx`:
* we run parsing for `PosFlag`:
* set `Opts.Xxx` to default `false`,
* discover `PosFlag` is implied by `-fenable-xxx`: set `Opts.Xxx` to `true`,
* don't see `-fxxx` on command line: do nothing,
* we run parsing for `NegFlag`:
* set `Opts.Xxx` to default `false`,
* discover `NegFlag` cannot be implied: do nothing,
* don't see `-fno-xxx` on command line: do nothing.
Now we ended up with `Opts.Xxx` set to `false` instead of `true`. For this reason, we need to ensure to append the same `ImpliedByAnyOf` instance to both flags.
This means both parsing runs now behave identically (they set the same default value, run the same "implied by" check, and call `makeBooleanOptionNormalizer` that already has information on both flags, so it returns the same value in both calls).
The solution works well, but what might be confusing is this: you have defined a flag **A** that is not `CC1Option`, but can be implied by another flag **B** that is `CC1Option`:
* if **A** is defined manually, it will never get implied, as the code never runs
```
def no_signed_zeros : Flag<["-"], "fno-signed-zeros">, Group<f_Group>, Flags<[]>,
MarshallingInfoFlag<"LangOpts->NoSignedZero">, ImpliedByAnyOf<[menable_unsafe_fp_math]>;
```
* if **A** is defined by `BoolOption`, it could get implied, as the code is run by its `CC1Option` counterpart:
```
defm signed_zeros : BoolOption<"signed-zeros",
"LangOpts->NoSignedZero", DefaultsToFalse,
ChangedBy<NegFlag, [], "Allow optimizations that ignore the sign of floating point zeros",
[cl_no_signed_zeros, menable_unsafe_fp_math]>,
ResetBy<PosFlag, [CC1Option]>, "f">, Group<f_Group>;
```
This is a surprising inconsistency.
One solution might be to somehow propagate the final `Flags` of the implied flag in `ImpliedByAnyOf` and check whether it has `CC1Option` in the parsing macro. However, I think it doesn't make sense to spend time thinking about a corner case that won't come up in real code.
An observation: it is unfortunate that the marshalling information is a part of the flag definition. If we represented it in a separate structure, we could avoid the "double parsing" problem by having a single source of truth. This would require a lot of additional work though.
Note: the original patch missed the `CC1Option` check in the parsing macro, making my reasoning here incomplete. Moreover, it contained a change to denormalization that wasn't necessarily related to these changes, so I've extracted that to a follow-up patch: D93094.
Reviewed By: dexonsmith, Bigcheese
Differential Revision: https://reviews.llvm.org/D93008
Raul Tambre [Wed, 16 Dec 2020 08:14:41 +0000 (10:14 +0200)]
Revert "[Compiler-rt][AArch64] Workaround for .cfi_startproc assembler parser bug."
039cb03dd0dcff4daa17a062f7414ac22bf5f2eb (D93378) fixed the assembly separator, so the workaround is no longer necessary.
This reverts commit
3000c19df64f89ff319590f3a6e4d6b93d20983d.
Differential Revision: https://reviews.llvm.org/D93379
Fangrui Song [Wed, 16 Dec 2020 08:13:22 +0000 (00:13 -0800)]
[builtins] Use %% as the separator for aarch64-*-darwin and ; for powerpc{32,64}
`;` is the default comment marker, which is also used by powerpc*-*-elf target triples.
`@` is the comment marker of powerpc*-*-darwin but the Darwin support has been deleted for PowerPC (D72063).
`%%` is the statement separator used by aarch64-*-darwin (see AArch64MCAsmInfoDarwin, it uses `;` as the comment marker, which is different from most other targets)
Reviewed By: tambre
Differential Revision: https://reviews.llvm.org/D93378
Siva Chandra Reddy [Wed, 16 Dec 2020 07:44:44 +0000 (23:44 -0800)]
[libc][NFC] Use ASSERT_FP_EQ to comapre NaN values in tests.
Stanislav Mekhanoshin [Tue, 15 Dec 2020 23:31:29 +0000 (15:31 -0800)]
[AMDGPU] Print SCRATCH_EN field after the kernel
Differential Revision: https://reviews.llvm.org/D93353
Siva Chandra Reddy [Wed, 16 Dec 2020 06:23:22 +0000 (22:23 -0800)]
[libc][NFC] Rename global `nan` in tests to `aNaN`.
The name `nan` conflicts with the function `nan` defined declared in
math.h.
Siva Chandra Reddy [Wed, 16 Dec 2020 05:40:40 +0000 (21:40 -0800)]
[libc][NFC][Obvious] Remove few unnecessary #include directives in tests.
Yaxun (Sam) Liu [Fri, 4 Dec 2020 22:38:57 +0000 (17:38 -0500)]
[HIP] unbundle bundled preprocessor output
There is a use case that users want to emit preprocessor
output as file and compile the preprocessor output later
with -x hip-cpp-output.
Clang emits bundled preprocessor output when users
compile with -E for combined host/device compilations.
Clang should be able to compile the bundled preprocessor
output with -x hip-cpp-output. Basically clang should
unbundle the bundled preprocessor output and launch
device and host compilation actions.
Currently there is a bug in clang driver causing bundled
preprocessor output not unbundled.
This patch fixes that.
Differential Revision: https://reviews.llvm.org/D92720
Philip Reames [Wed, 16 Dec 2020 03:06:12 +0000 (19:06 -0800)]
[LV] Weaken a unnecessarily strong assert [NFC]
Account for the fact that (in the future) the latch might be a switch not a branch. The existing code is correct, minus the assert.
Lang Hames [Wed, 16 Dec 2020 01:18:30 +0000 (12:18 +1100)]
[JITLink][ORC] Enable creation / linking of raw jitlink::LinkGraphs.
Separates link graph creation from linking. This allows raw LinkGraphs to be
created and passed to a link. ObjectLinkingLayer is updated to support emission
of raw LinkGraphs in addition to object buffers.
Raw LinkGraphs can be created by in-memory compilers to bypass object encoding /
decoding (though this prevents caching, as LinkGraphs have do not have an
on-disk representation), and by utility code to add programatically generated
data structures to the JIT target process.
Zakk Chen [Wed, 16 Dec 2020 01:27:38 +0000 (17:27 -0800)]
[RISCV] Refine vector load/store tablegen pattern, NFC.
Refine tablegen pattern for vector load/store, and follow
D93012 to separate masked and unmasked definitions for
pseudo load/store instructions.
Reviewed By: craig.topper
Differential Revision: https://reviews.llvm.org/D93284
Philip Reames [Wed, 16 Dec 2020 02:46:32 +0000 (18:46 -0800)]
[LV] Extend dead instruction detection to multiple exiting blocks
Given we haven't yet enabled multiple exiting blocks, this is currently non functional, but it's an obvious extension which cleans up a later patch.
I don't think this is worth review (as it's pretty obvious), if anyone disagrees, feel feel to revert or comment and I will.
Nathan James [Wed, 16 Dec 2020 01:56:30 +0000 (01:56 +0000)]
[ASTMatchers][NFC] Strip prefixes eagerly in dynamic matcher arg traits.
peter klausler [Tue, 15 Dec 2020 19:06:44 +0000 (11:06 -0800)]
[flang] Implement STORAGE_SIZE(), SIZEOF(), C_SIZEOF()
STORAGE_SIZE() is a standard inquiry intrinsic (size in bits
of an array element of the same type as the argument); SIZEOF()
is a common extension that returns the size in bytes of its
argument; C_SIZEOF() is a renaming of SIZEOF() in module ISO_C_BINDING.
STORAGE_SIZE() and SIZEOF() are implemented via rewrites to
expressions; these expressions will be constant when the necessary
type parameters and bounds are also constant.
Code to calculate the sizes of types (with and without alignment)
was isolated into Evaluate/type.* and /characteristics.*.
Code in Semantics/compute-offsets.* to calculate sizes and alignments
of derived types' scopes was exposed so that it can be called at type
instantiation time (earlier than before) so that these inquiry intrinsics
could be called from specification expressions.
Differential Revision: https://reviews.llvm.org/D93322
Krzysztof Parzyszek [Wed, 16 Dec 2020 01:05:31 +0000 (19:05 -0600)]
[Hexagon] Rename test case, NFC
Krzysztof Parzyszek [Wed, 16 Dec 2020 01:03:07 +0000 (19:03 -0600)]
[Hexagon] Temporarily disable vector realignment for non-HVX vectors
Krzysztof Parzyszek [Wed, 16 Dec 2020 00:41:49 +0000 (18:41 -0600)]
[Hexagon] Emit enough stores when aligning vector addresses
Nico Weber [Wed, 16 Dec 2020 00:41:00 +0000 (19:41 -0500)]
[mac/lld] fix amend mishap from
ec88746a059
Nico Weber [Tue, 15 Dec 2020 20:25:15 +0000 (15:25 -0500)]
[lld/mac] fill in current and compatibility version for LC_LOAD_(WEAK_)DYLIB
Not sure if anything actually depends on this, but it makes `otool -L`
output look nicer.
Differential Revision: https://reviews.llvm.org/D93332
peter klausler [Tue, 15 Dec 2020 18:54:36 +0000 (10:54 -0800)]
[flang] Fix false error message for "ptr => func()" array conformance
Pointers must have deferred shapes, so CheckConformance must be
extended to allow for them.
Differential Revision: https://reviews.llvm.org/D93320
Nico Weber [Tue, 15 Dec 2020 21:37:37 +0000 (16:37 -0500)]
[mac/lld] simplify code using PackedVersion instead of VersionTuple
PackedVersion already does the correct range checks.
No behavior change.
Differential Revision: https://reviews.llvm.org/D93338
Tim Keith [Wed, 16 Dec 2020 00:11:58 +0000 (16:11 -0800)]
[flang] Fix bug with USE of USE of generic
When merging use associations into a generic, we weren't handling
the case where the name that was use associated was itself a use
association. This is fixed by following that association to its
ultimate symbol (`useUltimate` in `DoAddUse`).
An example of the bug is `m12d` in `resolve17.f90`. `g` is associated
with `gc` in `m12c` which is associated with `gb` in `m12b`. It was that
last association that we weren't correctly following.
Differential Revision: https://reviews.llvm.org/D93343
LLVM GN Syncbot [Wed, 16 Dec 2020 00:03:26 +0000 (00:03 +0000)]
[gn build] Port
b9c77542e23
Johannes Doerfert [Wed, 16 Dec 2020 00:02:22 +0000 (18:02 -0600)]
Revert "[OpenMP] Add initial support for `omp [begin/end] assumes`"
There is a build error with gcc-5 [0], investigating now.
[0] https://reviews.llvm.org/D91980#2456526
This reverts commit
a5a14cbe7f87e01882ecaa14df5d596cbf38823a.
Reid Kleckner [Tue, 15 Dec 2020 23:59:21 +0000 (15:59 -0800)]
Document that AlignedCharArrayUnion exists to work around an MSVC bug
Differential Revision: https://reviews.llvm.org/D93355
Tres Popp [Tue, 15 Dec 2020 23:13:05 +0000 (00:13 +0100)]
[mlir] Allow SymbolTable to update existing symbols
Previous behavior would fail if inserting an operation that already
existed. Now SymbolTable::insert can also be used as a way to make a
symbol's name unique even after insertion.
Further TODOs have been left over naming and consistent behavior
considerations.
Differential Revision: https://reviews.llvm.org/D93349
Bangtian Liu [Tue, 15 Dec 2020 23:28:42 +0000 (23:28 +0000)]
Ensure SplitEdge to return the new block between the two given blocks
This PR implements the function splitBasicBlockBefore to address an
issue
that occurred during SplitEdge(BB, Succ, ...), inside splitBlockBefore.
The issue occurs in SplitEdge when the Succ has a single predecessor
and the edge between the BB and Succ is not critical. This produces
the result ‘BB->Succ->New’. The new function splitBasicBlockBefore
was added to splitBlockBefore to handle the issue and now produces
the correct result ‘BB->New->Succ’.
Below is an example of splitting the block bb1 at its first instruction.
/// Original IR
bb0:
br bb1
bb1:
%0 = mul i32 1, 2
br bb2
bb2:
/// IR after splitEdge(bb0, bb1) using splitBasicBlock
bb0:
br bb1
bb1:
br bb1.split
bb1.split:
%0 = mul i32 1, 2
br bb2
bb2:
/// IR after splitEdge(bb0, bb1) using splitBasicBlockBefore
bb0:
br bb1.split
bb1.split
br bb1
bb1:
%0 = mul i32 1, 2
br bb2
bb2:
Differential Revision: https://reviews.llvm.org/D92200
Stephen Kelly [Mon, 14 Dec 2020 23:09:32 +0000 (23:09 +0000)]
[ClangTidy] NFC: Add more tests for container-size-empty
Stephen Kelly [Tue, 15 Dec 2020 19:02:29 +0000 (19:02 +0000)]
[ASTMatcher] Avoid isImplicit call on object which could be nullptr
A callExpr whose argument is dependent has a null getCalleeDecl().
Differential Revision: https://reviews.llvm.org/D93324
Johannes Doerfert [Tue, 15 Dec 2020 23:24:53 +0000 (17:24 -0600)]
[FIX] Add the comma missing in D91979
Harald van Dijk [Tue, 15 Dec 2020 23:07:34 +0000 (23:07 +0000)]
[X86] Add REX prefix for GOTTPOFF/TLSDESC relocs in x32 mode
The REX prefix is needed to allow linker relaxations: even if the
instruction we emit may not need it, the linker may change it to a
different instruction which does need it.
River Riddle [Tue, 15 Dec 2020 22:42:16 +0000 (14:42 -0800)]
[mlir][Pass] Add a new PassNameCLParser specifically for parsing lists of pass names
This parser does not include the general `pass_pipeline` option, the pass pipeline entries, or the options of pass entries. This is useful for cases such as `print-ir-after` that just want the user to select specific pass types. This revision greatly reduces the amount of text in --help for several MLIR based tools.
Fixes PR#45495
Differential Revision: https://reviews.llvm.org/D92987
Richard Smith [Tue, 15 Dec 2020 22:18:48 +0000 (14:18 -0800)]
DR1413 and part of P1815R2: Minor improvements to Clang's determination
of type- and value-dependency.
A static data member initialized to a constant inside a class template
is no longer considered value-dependent, per DR1413. A const but not
constexpr variable of literal type (other than integer or enumeration)
is no longer considered value-dependent, per P1815R2.
Richard Smith [Tue, 15 Dec 2020 21:23:08 +0000 (13:23 -0800)]
DR2100: &expr is value-dependent if expr constant-evaluates to a
dependent declaration.
Fangrui Song [Tue, 15 Dec 2020 22:53:12 +0000 (14:53 -0800)]
[IR] Delete deprecated DebugLoc::get
Johannes Doerfert [Mon, 23 Nov 2020 17:48:59 +0000 (11:48 -0600)]
[OpenMP] Add initial support for `omp [begin/end] assumes`
The `assumes` directive is an OpenMP 5.1 feature that allows the user to
provide assumptions to the optimizer. Assumptions can refer to
directives (`absent` and `contains` clauses), expressions (`holds`
clause), or generic properties (`no_openmp_routines`, `ext_ABCD`, ...).
The `assumes` spelling is used for assumptions in the global scope while
`assume` is used for executable contexts with an associated structured
block.
This patch only implements the global spellings. While clauses with
arguments are "accepted" by the parser, they will simply be ignored for
now. The implementation lowers the assumptions directly to the
`AssumptionAttr`.
Reviewed By: ABataev
Differential Revision: https://reviews.llvm.org/D91980
Johannes Doerfert [Tue, 24 Nov 2020 19:38:55 +0000 (13:38 -0600)]
[OpenMP] Use assumptions during ICV tracking
The OpenMP 5.1 assumptions `no_openmp` and `no_openmp_routines` allow us
to ignore calls that would otherwise prevent ICV tracking.
Once we track more ICVs we might need to distinguish the ones that could
be impacted even with `no_openmp_routines`.
Reviewed By: sstefan1
Differential Revision: https://reviews.llvm.org/D92050
Johannes Doerfert [Sat, 21 Nov 2020 19:49:41 +0000 (13:49 -0600)]
[Clang][Attr] Introduce the `assume` function attribute
The `assume` attribute is a way to provide additional, arbitrary
information to the optimizer. For now, assumptions are restricted to
strings which will be accumulated for a function and emitted as comma
separated string function attribute. The key of the LLVM-IR function
attribute is `llvm.assume`. Similar to `llvm.assume` and
`__builtin_assume`, the `assume` attribute provides a user defined
assumption to the compiler.
A follow up patch will introduce an LLVM-core API to query the
assumptions attached to a function. We also expect to add more options,
e.g., expression arguments, to the `assume` attribute later on.
The `omp [begin] asssumes` pragma will leverage this attribute and
expose the functionality in the absence of OpenMP.
Reviewed By: aaron.ballman
Differential Revision: https://reviews.llvm.org/D91979
Johannes Doerfert [Fri, 11 Dec 2020 00:25:28 +0000 (18:25 -0600)]
[OpenMPOpt][NFC] Clang format
Alex Zinenko [Tue, 15 Dec 2020 20:10:49 +0000 (21:10 +0100)]
[mlir] NFC: retire LLVM_Zero/OneResultOp from LLVM dialect ODS
These classes were initially introduced to factor out two common parts of LLVM
op definitions: the fact that they have no results or a single result of
LLVM_Type, and the default builders. Neither of the two parts is really
common anymore: many ops have more specific on the result type, and many ops
provide custom builders. The TableGen classes only add conceptual complexity
and make LLVM dialect definition dissimilar to other dialects. Remove them in
favor of explicitly specified builders (results are already specified).
Depends On D93329
Reviewed By: rriddle
Differential Revision: https://reviews.llvm.org/D93330
Alex Zinenko [Tue, 15 Dec 2020 20:10:21 +0000 (21:10 +0100)]
[mlir] Tighten type verifiers for LLVM dialect ops results
Now that we have predicates for LLVM dialect types in ODS, we can use them to
restrict the types allowed in results of LLVM dialect operations. This also
serves as additional documentation for these operations.
Reviewed By: rriddle
Differential Revision: https://reviews.llvm.org/D93329
Richard Smith [Tue, 15 Dec 2020 22:29:22 +0000 (14:29 -0800)]
Don't memcpy from an empty ArrayRef; the base pointer could be null, and
the C rules say memcpy can't accept a null pointer.
This should fix a test failure with the ubsan buildbots.
Matt Arsenault [Tue, 13 Oct 2020 15:43:32 +0000 (11:43 -0400)]
RegisterCoalescer: Remove phi-only subranges when erasing identity copies
Undef subranges are not present in the live range values, except when
they cross block boundaries. In this situation, a identity copy is
inside a loop, and one of the lanes is undefined. It only appears
alive inside the loop due to the copy. Once the copy was erased, it
would leave behind a segment inside the loop body with no
corresponding def anywhere in the program.
When RenameIndependentSubregs processed this dummy interval, it would
introduce a "Multiple connected components in live interval" verifier
error when IMPLICIT_DEFs were added to the other two blocks. I believe
there is a missing verifier check for this type of dummy interval.
I have found additional cases from the same fundamental problem in
other areas I haven't managed to fix yet (e.g. the commented out
prune_subrange_phi_value_* cases).
Louis Dionne [Tue, 15 Dec 2020 22:33:47 +0000 (17:33 -0500)]
[libc++] Use consistent declaration for main() in test
Hsiangkai Wang [Mon, 14 Dec 2020 16:51:07 +0000 (00:51 +0800)]
[RISCV] Define vfadd/vfsub/vfrsub intrinsics.
Define vfadd/vfsub/vfrsub intrinsics and lower to V instructions.
We work with @rogfer01 from BSC to come out this patch.
Authored-by: Roger Ferrer Ibanez <rofirrim@gmail.com>
Co-Authored-by: Hsiangkai Wang <kai.wang@sifive.com>
Differential Revision: https://reviews.llvm.org/D93291
Hsiangkai Wang [Mon, 14 Dec 2020 15:39:35 +0000 (23:39 +0800)]
[RISCV] Define vmin/vminu/vmax/vmaxu intrinsics.
Authored-by: Roger Ferrer Ibanez <rofirrim@gmail.com>
Co-Authored-by: Hsiangkai Wang <kai.wang@sifive.com>
Differential Revision: https://reviews.llvm.org/D93218
Hsiangkai Wang [Mon, 14 Dec 2020 13:47:15 +0000 (21:47 +0800)]
[RISCV] Define vnsrl/vnsra intrinsics.
Authored-by: Roger Ferrer Ibanez <rofirrim@gmail.com>
Co-Authored-by: Hsiangkai Wang <kai.wang@sifive.com>
Differential Revision: https://reviews.llvm.org/D93207
Hsiangkai Wang [Mon, 14 Dec 2020 06:54:14 +0000 (14:54 +0800)]
[RISCV] Define vsll/vsrl/vsra intrinsics.
Authored-by: Roger Ferrer Ibanez <rofirrim@gmail.com>
Co-Authored-by: Hsiangkai Wang <kai.wang@sifive.com>
Differential Revision: https://reviews.llvm.org/D93193
Hsiangkai Wang [Sat, 12 Dec 2020 09:18:32 +0000 (17:18 +0800)]
[RISCV] Define vadc/vmadc/vsbc/vmsbc intrinsics.
Authored-by: Roger Ferrer Ibanez <rofirrim@gmail.com>
Co-Authored-by: Hsiangkai Wang <kai.wang@sifive.com>
Differential Revision: https://reviews.llvm.org/D93175
Duncan P. N. Exon Smith [Tue, 15 Dec 2020 22:10:47 +0000 (14:10 -0800)]
Frontend: Fix confusing comment at call to clearOutputFiles, NFC
Fix the comment in front of `compileModuleImpl`'s call to
`CompilerInstance::clearOutputFiles`. The purpose of this call is to
delete any stray temporary files after the module generation thread
crashes.
The comment is from
f545f67de3a1bfdbbfad88acde5b540ce3b82f4f, and
was associated with manually deleting a generated module map. Then
13afbf42d830dd43febbeb0855aa359ca9dbfbf9 added this `clearOutputFiles`
call between the comment and the code it referenced. Finally,
1f76c4e8101b9beaf8f1b10a57faa80256ab2b05 started sending the generated
module map directly to the SourceManager instead of putting it on disk,
deleting the call that the comment referenced.
No functionality change.
Fangrui Song [Tue, 15 Dec 2020 22:17:04 +0000 (14:17 -0800)]
[docs][unittest][Go][StackProtector] Migrate deprecated DebugInfo::get to DILocation::get
Krzysztof Parzyszek [Tue, 15 Dec 2020 21:59:59 +0000 (15:59 -0600)]
[Hexagon] Fix bitcasting v1i8 -> i8
Matt Arsenault [Tue, 15 Dec 2020 15:39:27 +0000 (10:39 -0500)]
GlobalISel: Fix generic handling of single outgoing call arguments
Simply call the argument handler like is done for the incoming
case. This will allow removal of hacks in the AMDGPU call lowering in
a future change.
Matt Arsenault [Tue, 15 Dec 2020 19:14:10 +0000 (14:14 -0500)]
AMDGPU: Remove redundant CCAction for i1
Fangrui Song [Tue, 15 Dec 2020 21:59:31 +0000 (13:59 -0800)]
[clang] Migrate deprecated DebugInfo::get to DILocation::get
Craig Topper [Tue, 15 Dec 2020 21:34:04 +0000 (13:34 -0800)]
[RISCV] Only custom legalize i32 arguments to vector intrinsics on RV64.
River Riddle [Tue, 15 Dec 2020 21:39:09 +0000 (13:39 -0800)]
[mlir][IR] Define the singleton builtin types in ODS instead of C++
This exposes several issues with the current generation that this revision also fixes.
* TypeDef now allows specifying the base class to use when generating.
* TypeDef now inherits from DialectType, which allows for using it as a TypeConstraint
* Parser/Printers are now no longer generated in the header(removing duplicate symbols), and are now only generated when necessary.
- Now that generatedTypeParser/Printer are only generated in the definition file,
existing users will need to manually expose this functionality when necessary.
* ::get() is no longer generated for singleton types, because it isn't necessary.
Differential Revision: https://reviews.llvm.org/D93270
Roman Lebedev [Tue, 15 Dec 2020 18:36:23 +0000 (21:36 +0300)]
[NFCI][SimplifyCFG] Add basic scaffolding for gradually making the pass DomTree-aware
Two observations:
1. Unavailability of DomTree makes it impossible to make
`FoldBranchToCommonDest()` transform in certain cases,
where the successor is dominated by predecessor,
because we then don't have PHI's, and can't recreate them,
well, without handrolling 'is dominated by' check,
which doesn't really look like a great solution to me.
2. Avoiding invalidating DomTree in SimplifyCFG will
decrease the number of `Dominator Tree Construction` by 5
(from 28 now, i.e. -18%) in `-O3` old-pm pipeline
(as per `llvm/test/Other/opt-O3-pipeline.ll`)
This might or might not be beneficial for compile time.
So the plan is to make SimplifyCFG preserve DomTree, and then
eventually make DomTree fully required and preserved by the pass.
Now, SimplifyCFG is ~7KLOC. I don't think it will be nice
to do all this uplifting in a single mega-commit,
nor would it be possible to review it in any meaningful way.
But, i believe, it should be possible to do this in smaller steps,
introducing the new behavior, in an optional way, off-by-default,
opt-in option, and gradually fixing transforms one-by-one
and adding the flag to appropriate test coverage.
Then, eventually, the default should be flipped,
and eventually^2 the flag removed.
And that is what is happening here - when the new off-by-default option
is specified, DomTree is required and is claimed to be preserved,
and SimplifyCFG-internal assertions verify that the DomTree is still OK.
Roman Lebedev [Tue, 15 Dec 2020 21:32:50 +0000 (00:32 +0300)]
[NFC][Tests][SimplifyCFG] Trim whitespaces at the end of lines
peter klausler [Tue, 15 Dec 2020 19:09:41 +0000 (11:09 -0800)]
[flang] Clean up TODO comments and fix one (DATA constant ambiguity)
Remove resolved & moot TODO comments in Common/, Parser/,
and Evaluate/. Address a pending one relating to parsing
ambiguity in DATA statement constants, handling it with
symbol table information in Semantics and adding a test.
Differential Revision: https://reviews.llvm.org/D93323
Nathan James [Tue, 15 Dec 2020 21:15:15 +0000 (21:15 +0000)]
[clang-tidy] Support all YAML supported spellings for bools in CheckOptions.
Depends on D92755
Reviewed By: aaron.ballman
Differential Revision: https://reviews.llvm.org/D92756
Baptiste Saleil [Tue, 15 Dec 2020 21:08:09 +0000 (15:08 -0600)]
[PowerPC] Enable paired vector type and intrinsics when MMA is disabled
This patch enables the Clang type __vector_pair and its associated LLVM
intrinsics even when MMA is disabled. With this patch, the type is now controlled
by the PPC paired-vector-memops option. The builtins and intrinsics will be
renamed to drop the mma prefix in another patch.
Differential Revision: https://reviews.llvm.org/D91819
Nathan James [Tue, 15 Dec 2020 21:10:56 +0000 (21:10 +0000)]
[clangd] Validate clang-tidy Checks in clangd config.
Add instrumentation in ConfigCompile to validate that items in ClangTidy:[Add|Remove] correspond to actual clang-tidy checks.
If they don't a warning will be presented to the user.
This is especially useful for catching typos in the glob items.
Reviewed By: sammccall
Differential Revision: https://reviews.llvm.org/D92874
peter klausler [Tue, 15 Dec 2020 18:49:01 +0000 (10:49 -0800)]
[flang] Minor fix to list-directed REAL output editing
Always emit the letter 'E' in list-directed REAL output;
the library was omitting it for exponents greater than 99,
as should be done for E and D formatting of large exponents
without an Ed exponent digit count.
Differential Revision: https://reviews.llvm.org/D93319
Jez Ng [Tue, 15 Dec 2020 05:49:03 +0000 (00:49 -0500)]
[lld-macho] Add implicit dylib support for frameworks
{D93000} applied to frameworks. Partial fix for PR48511.
Reviewed By: #lld-macho, thakis
Differential Revision: https://reviews.llvm.org/D93277
Jez Ng [Tue, 15 Dec 2020 03:55:28 +0000 (22:55 -0500)]
[lld-macho] Support -sub_umbrella
From what I can tell, it's essentially identical to
`-sub_library`, but it doesn't match files ending in ".dylib".
Reviewed By: #lld-macho, thakis
Differential Revision: https://reviews.llvm.org/D93276