Min-Yih Hsu [Sun, 2 May 2021 21:27:33 +0000 (14:27 -0700)]
[M68k][AsmParser] Support negative integer constants
Parsing negative integer constants as expressions.
Differential Revision: https://reviews.llvm.org/D101732
Min-Yih Hsu [Tue, 27 Apr 2021 16:51:57 +0000 (09:51 -0700)]
[M68k][test] Initial migration of MC tests
As the context depicted by bug 49865[1], we are migrating tests under
`test/CodeGen/M68k/Encoding`, which was originally used to test
instruction encoding using MIR file as input, into `test/MC/M68k`. We
are also adding test directives for AsmParser using the same set of
inputs.
Currently we are converting the original MIR test files into assembly
code as well as translating the original LIT "RUN" statement into one
that only uses built-in LLVM tools (i.e. Get rid of `extract-section`).
However, since AsmParser has not completely finished, many of these
original test cases fail. Thus, this patch only migrate test files
that are passed by the current implementation of AsmParser (and
MCCodeEmitter). The remaining tests (under test/CodeGen/M68k/Encoding)
will be ported alone with the patch that fixes the related issues.
[1]: https://bugs.llvm.org/show_bug.cgi?id=49865
Differential Revision: https://reviews.llvm.org/D101410
Heejin Ahn [Tue, 4 May 2021 04:48:38 +0000 (21:48 -0700)]
[WebAssembly] Fix JS code mentions in LowerEmscriptenEHSjLj
- Removes the mention of fastcomp, which is deprecated.
- Some functions in Emscripten have moved from JS glue code to
compiler-rt/emscripten_setjmp.c and
compiler-rt/emscripten_exception_builtins.c. This fixes comments about
that.
Reviewed By: sbc100
Differential Revision: https://reviews.llvm.org/D101812
peter klausler [Fri, 23 Apr 2021 23:30:34 +0000 (16:30 -0700)]
[flang] Provide access to constant character array data
Allow direct access to constant character array data (for creating a hash ID of a constant).
Differential Revision: https://reviews.llvm.org/D101208
Emilio Cota [Wed, 5 May 2021 23:41:22 +0000 (16:41 -0700)]
[mlir] Check generated IR of math_polynomial_approx.mlir
Instead of just checking that we emit something.
Differential Revision: https://reviews.llvm.org/D101940
Nicolai Hähnle [Wed, 5 May 2021 23:36:45 +0000 (01:36 +0200)]
[tests] Update Transforms/FunctionAttrs/nosync.ll
Commit generated by running update_test_checks.py, to reflect the fact
that we now add the `mustprogress` attribute.
Fangrui Song [Wed, 5 May 2021 23:28:39 +0000 (16:28 -0700)]
[AArch64] Deleted unused AsmBackend functions
RamNalamothu [Wed, 5 May 2021 23:18:59 +0000 (04:48 +0530)]
[MCAsmInfo] Support UsesCFIForDebug for targets with no exception handling
This change enables emitting CFI unwind information for debugging purpose
for targets with MCAsmInfo::ExceptionsType == ExceptionHandling::None.
Currently generating CFI unwind information is entangled with supporting
the exceptions, even when AsmPrinter explicitly recognizes that the unwind
tables are being generated as debug information.
In fact, the unwind information is not generated even if we specify
--force-dwarf-frame-section, unless exceptions are enabled. The LIT test
llvm/test/CodeGen/AMDGPU/debug_frame.ll demonstrates this behavior.
Enable this option for AMDGPU to prepare for future patches which add
complete CFI support.
Reviewed By: dblaikie, MaskRay
Differential Revision: https://reviews.llvm.org/D78778
MaheshRavishankar [Wed, 5 May 2021 23:05:44 +0000 (16:05 -0700)]
[mlir][Linalg] Fix test to use new reshape op form.
Differential Revision: https://reviews.llvm.org/D101956
Coplin, Jared [Wed, 20 Jan 2021 22:11:49 +0000 (16:11 -0600)]
Attach metadata to simplified masked loads and stores
Alex Reinking [Wed, 5 May 2021 22:54:17 +0000 (15:54 -0700)]
Allow /STACK in #pragma comment(linker, ...)
The Halide project uses `#pragma comment(linker, "/STACK:...")` to set
the stack size high enough for our embedded compiler to run in end-user
programs on Windows.
Unfortunately, lld-link.exe breaks on this when embedded in a COFF
object, despite supporting the flag on the command line. MSVC's link.exe
supports this fine. This patch extends support for this to lld-link.exe
for better compatibility with MSVC projects.
Differential Revision: https://reviews.llvm.org/D99680
Matt Arsenault [Wed, 5 May 2021 22:40:58 +0000 (18:40 -0400)]
AMDGPU: Fix lit test
MaheshRavishankar [Wed, 5 May 2021 22:38:25 +0000 (15:38 -0700)]
[mlir][Linalg] Fix element type of results when folding reshapes.
Fixing a minor bug which lead to element type of the output being
modified when folding reshapes with generic op.
Differential Revision: https://reviews.llvm.org/D101942
Fangrui Song [Wed, 5 May 2021 22:27:16 +0000 (15:27 -0700)]
[AArch64] Fix some coding standard issues related to namespace llvm
https://llvm.org/docs/CodingStandards.html#use-namespace-qualifiers-to-implement-previously-declared-functions
Petr Hosek [Tue, 4 May 2021 05:05:27 +0000 (22:05 -0700)]
[Driver] Move -print-runtime-dir and -print-resource-dir tests
Put these into a separate files to match other -print-* options tests.
Differential Revision: https://reviews.llvm.org/D101813
Vang Thao [Wed, 14 Apr 2021 00:51:58 +0000 (17:51 -0700)]
[AMDGPU][GlobalISel] Widen 1 and 2 byte scalar loads
Widen 1 and 2 byte scalar loads to 4 bytes when sufficiently
aligned to avoid using a global load.
Reviewed By: arsenm
Differential Revision: https://reviews.llvm.org/D100430
Nico Weber [Wed, 5 May 2021 22:15:07 +0000 (18:15 -0400)]
[gn build] (semi-manually) port
0b10bb7ddd3c more
Dave Lee [Thu, 29 Apr 2021 23:03:46 +0000 (16:03 -0700)]
[lldb] Handle missing SBStructuredData copy assignment cases
Fix cases that can crash `SBStructuredData::operator=`.
This happened in a case where `rhs` had a null `SBStructuredDataImpl`.
Differential Revision: https://reviews.llvm.org/D101585
Vy Nguyen [Tue, 4 May 2021 20:23:21 +0000 (16:23 -0400)]
[lld-macho] Check simulator platforms to avoid issuing false positive errors.
Currently the linker causes unnecessary errors when either the target or the config's platform is a simulator.
Differential Revision: https://reviews.llvm.org/D101855
Nico Weber [Wed, 5 May 2021 22:06:52 +0000 (18:06 -0400)]
[gn build] (semi-manually) port
0b10bb7ddd3c
Matt Arsenault [Sun, 14 Mar 2021 17:52:31 +0000 (13:52 -0400)]
AMDGPU: Add a few more tail call tests
Add some cases I noticed were missing when porting to GlobalISel. The
cases that required any argument splitting did not work at first.
Matt Arsenault [Wed, 5 May 2021 21:22:10 +0000 (17:22 -0400)]
ARM/GlobalISel: Don't store a MachineInstrBuilder reference
This is basically a pointer anyway
Richard Smith [Wed, 5 May 2021 21:44:49 +0000 (14:44 -0700)]
When performing template argument deduction to select a partial
specialization while substituting a partial template parameter pack,
don't try to extend the existing deduction.
This caused us to select the wrong partial specialization in some rare
cases. A recent change to libc++ caused this to happen in practice for
code using std::conjunction.
Stanislav Mekhanoshin [Mon, 3 May 2021 18:01:13 +0000 (11:01 -0700)]
[AMDGPU] Improve global SADDR selection
An address can be a uniform sum of two i64 bit values.
That regularly happens in a loop where index is an induction
variable promoted to 64 bit by the LSR. We can materialize
zero in a VGPR and still use SADDR form of the load.
Differential Revision: https://reviews.llvm.org/D101591
Kirill Bobyrev [Wed, 5 May 2021 21:39:37 +0000 (23:39 +0200)]
[clangd] Split CC and refs limit and increase refs limit to 1000
Related discussion: https://github.com/clangd/clangd/discussions/761
Reviewed By: kadircet
Differential Revision: https://reviews.llvm.org/D101902
Matt Arsenault [Wed, 5 May 2021 17:55:24 +0000 (13:55 -0400)]
GlobalISel: Update documentation
Matt Arsenault [Wed, 5 May 2021 02:29:30 +0000 (22:29 -0400)]
AMDGPU/GlobalISel: Remove unnecessary override
This is the same as the default implementation
Matt Arsenault [Sun, 28 Feb 2021 16:35:37 +0000 (11:35 -0500)]
X86/GlobalISel: Use generic version of splitToValueTypes
The custom insert of an unmerge and the callback weirdness should be
unnecessary. Since handleAssignments should now use
getRegisterTypeForCalling conv as SelectionDAG builder would, this
should now just be able to use the generic code. X86-32 relies on the
generated CCAssignFns not seeing illegal types and sharing code with
x86_64, so i64 values would incorrectly be assigned to 64-bit
registers.
Matt Arsenault [Tue, 13 Apr 2021 17:45:35 +0000 (13:45 -0400)]
GlobalISel: Use DAG call lowering infrastructure in a more compatible way
Unfortunately the current call lowering code is built on top of the
legacy MVT/DAG based code. However, GlobalISel was not using it the
same way. In short, the DAG passes legalized types to the assignment
function, and GlobalISel was passing the original raw type if it was
simple.
I do believe the DAG lowering is conceptually broken since it requires
picking a type up front before knowing how/where the value will be
passed. This ends up being a problem for AArch64, which wants to pass
i1/i8/i16 values as a different size if passed on the stack or in
registers.
The argument type decision is split across 3 different places which is
hard to follow. SelectionDAG builder uses
getRegisterTypeForCallingConv to pick a legal type, tablegen gives the
illusion of controlling the type, and the target may have additional
hacks in the C++ part of the call lowering. AArch64 hacks around this
by not using the standard AnalyzeFormalArguments and special casing
i1/i8/i16 by looking at the underlying type of the original IR
argument.
I believe people have generally assumed the calling convention code is
processing the original types, and I've discovered a number of dead
paths in several targets.
x86 actually relies on the opposite behavior from AArch64, and relies
on x86_32 and x86_64 sharing calling convention code where the 64-bit
cases implicitly do not work on x86_32 due to using the pre-legalized
types.
AMDGPU targets without legal i16/f16 have always used a broken ABI
that promotes to i32/f32. GlobalISel accidentally fixed this to be the
ABI we should have, but this fixes it so we're using the worse ABI
that is compatible with the DAG. Ideally we would fix the DAG to match
the old GlobalISel behavior, but I don't wish to fight that battle.
A new native GlobalISel call lowering framework should let the target
process the incoming types directly.
CCValAssigns select a "ValVT" and "LocVT" but the meanings of these
aren't entirely clear. Different targets don't use them consistently,
even within their own call lowering code. My current belief is the
intent was "ValVT" is supposed to be the legalized value type to use
in the end, and and LocVT was supposed to be the ABI passed type
(which is also legalized).
With the default CCState::Analyze functions always passing the same
type for these arguments, these only differ when the TableGen part of
the lowering decide to promote the type from one legal type to
another. AArch64's i1/i8/i16 hack ends up inverting the meanings of
these values, so I had to add an additional hack to let the target
interpret how large the argument memory is.
Since targets don't consistently interpret ValVT and LocVT, this
doesn't produce quite equivalent code to the initial DAG
lowerings. I've opted to consistently interpret LocVT as the in-memory
size for stack passed values, and ValVT as the register type to assign
from that memory. We therefore produce extending loads directly out of
the IRTranslator, whereas the DAG would emit regular loads of smaller
values. This will also produce loads/stores that are wider than the
argument value if the allocated stack slot is larger (and there will
be undef padding bytes). If we had the optimizations to reduce
load/stores based on truncated values, this wouldn't produce a
different end result.
Since ValVT/LocVT are more consistently interpreted, we now will emit
more G_BITCASTS as requested by the CCAssignFn. For example AArch64
was directly assigning types to some physical vector registers which
according to the tablegen spec should have been casted to a vector
with a different element type.
This also moves the responsibility for inserting
G_ASSERT_SEXT/G_ASSERT_ZEXT from the target ValueHandlers into the
generic code, which is closer to how SelectionDAGBuilder works.
I had to xfail an x86 test since I don't see a quick way to fix it
right now (I filed bug 50035 for this). It's broken independently of
this change, and only triggers since now we end up with more ands
which hit the improperly handled selection pattern.
I also observed that FP arguments that need promotion (e.g. f16 passed
as f32) are broken, and use regular G_TRUNC and G_ANYEXT.
TLDR; the current call lowering infrastructure is bad and nobody has
ever understood how it chooses types.
Emilio Cota [Wed, 5 May 2021 21:26:50 +0000 (14:26 -0700)]
[mlir] Add polynomial approximation for math::ExpM1
This approximation matches the one in Eigen.
```
name old cpu/op new cpu/op delta
BM_mlir_Expm1_f32/10 90.9ns ± 4% 52.2ns ± 4% -42.60% (p=0.000 n=74+87)
BM_mlir_Expm1_f32/100 837ns ± 3% 231ns ± 4% -72.43% (p=0.000 n=79+69)
BM_mlir_Expm1_f32/1k 8.43µs ± 3% 1.58µs ± 5% -81.30% (p=0.000 n=77+83)
BM_mlir_Expm1_f32/10k 83.8µs ± 3% 15.4µs ± 5% -81.65% (p=0.000 n=83+69)
BM_eigen_s_Expm1_f32/10 68.8ns ±17% 72.5ns ±14% +5.40% (p=0.000 n=118+115)
BM_eigen_s_Expm1_f32/100 694ns ±11% 717ns ± 2% +3.34% (p=0.000 n=120+75)
BM_eigen_s_Expm1_f32/1k 7.69µs ± 2% 7.97µs ±11% +3.56% (p=0.000 n=95+117)
BM_eigen_s_Expm1_f32/10k 88.0µs ± 1% 89.3µs ± 6% +1.45% (p=0.000 n=74+106)
BM_eigen_v_Expm1_f32/10 44.3ns ± 6% 45.0ns ± 8% +1.45% (p=0.018 n=81+111)
BM_eigen_v_Expm1_f32/100 351ns ± 1% 360ns ± 9% +2.58% (p=0.000 n=73+99)
BM_eigen_v_Expm1_f32/1k 3.31µs ± 1% 3.42µs ± 9% +3.37% (p=0.000 n=71+100)
BM_eigen_v_Expm1_f32/10k 33.7µs ± 8% 34.1µs ± 9% +1.04% (p=0.007 n=99+98)
```
Reviewed By: ezhulenev
Differential Revision: https://reviews.llvm.org/D101852
Michael Kitzan [Sat, 1 May 2021 02:50:54 +0000 (19:50 -0700)]
[MachineCSE][NFC]: Refactor and comment on preventing CSE for isConvergent instrs
- Move the code preventing CSE of `isConvergent` instrs into
`ProcessBlockCSE` (from `isProfitableToCSE`)
- Add comments explaining why `isConvergent` is used to prevent
CSE of non-local instrs in MachineCSE and the new test
Giorgis Georgakoudis [Wed, 5 May 2021 18:46:02 +0000 (11:46 -0700)]
[Utils][NFC] Rename replace-function-regex in update_cc_test_checks
This patch renames the replace-function-regex to replace-value-regex to indicate that the existing regex replacement functionality can replace any IR value besides functions.
Reviewed By: jdoerfert
Differential Revision: https://reviews.llvm.org/D101934
Krzysztof Parzyszek [Fri, 23 Apr 2021 20:07:00 +0000 (15:07 -0500)]
Preserve metadata on masked intrinsics in auto-upgrade
When auto-upgrade was replacing a call to a masked intrinsic, it would
not copy the metadata from the original call.
If an intrinsic had metadata, but did not need any updates, the metadata
would stay, but if an update was needed, the would end up being removed.
A similar effect could be observed with masked_expandload and
masked_compressstore, which at the moment are not handled by auto-upgrade:
the metadata remained untouched.
Differential Revision: https://reviews.llvm.org/D101201
Roman Lebedev [Wed, 5 May 2021 20:46:35 +0000 (23:46 +0300)]
[NFC][X86][Codegen] Add some tests for 64-bit shift by (32-x)
Thomas Lively [Wed, 5 May 2021 20:46:45 +0000 (13:46 -0700)]
[WebAssembly] Add SIMD const_splat intrinsics
These intrinsics do not correspond to their own underlying instruction, but are
a convenience for the common case of materializing a constant vector that has
the same value in each lane.
Differential Revision: https://reviews.llvm.org/D101885
Isuru Fernando [Wed, 28 Apr 2021 17:50:51 +0000 (12:50 -0500)]
[lld] Convert LLVM_CMAKE_PATH to a CMake path
Otherwise I get the following error on windows.
```
CMake Error at D:/bld/lld_1569206597988/work/build/CMakeFiles/CMakeTmp/CMakeLists.txt:2 (set):
Syntax error in cmake code at
D:/bld/lld_1569206597988/work/build/CMakeFiles/CMakeTmp/CMakeLists.txt:2
when parsing string
D:\bld\lld_1569206597988\_h_env\Library\lib\cmake\llvm
Invalid character escape '\b'.
CMake Error at D:/bld/lld_1569206597988/_build_env/Library/share/cmake-3.15/Modules/CheckSymbolExists.cmake:100 (try_compile):
Failed to configure test project build system.
Call Stack (most recent call first):
D:/bld/lld_1569206597988/_build_env/Library/share/cmake-3.15/Modules/CheckSymbolExists.cmake:57 (__CHECK_SYMBOL_EXISTS_IMPL)
D:/bld/lld_1569206597988/_h_env/Library/lib/cmake/llvm/HandleLLVMOptions.cmake:943 (check_symbol_exists)
CMakeLists.txt:56 (include)
```
Reviewed By: sbc100
Differential Revision: https://reviews.llvm.org/D68158
Rob Suderman [Wed, 5 May 2021 20:10:49 +0000 (13:10 -0700)]
[mlir][tosa] Add tosa.depthwise lowering to existing linalg.depthwise_conv
Implements support for undialated depthwise convolution using the existing
depthwise convolution operation. Once convolutions migrate to yaml defined
versions we can rewrite for cleaner implementation.
Reviewed By: mravishankar
Differential Revision: https://reviews.llvm.org/D101579
Vitaly Buka [Tue, 4 May 2021 23:34:59 +0000 (16:34 -0700)]
[scudo] Align objects with alignas
Operator new must align allocations for types with large alignment.
Before c++17 behavior was implementation defined and both clang and gc++
before 11 ignored alignment. Miss-aligned objects mysteriously crashed
tests on Ubuntu 14.
Alternatives are compile with -std=c++17 or -faligned-new, but they were
discarded as less portable.
Reviewed By: hctim
Differential Revision: https://reviews.llvm.org/D101874
Arthur O'Dwyer [Tue, 20 Apr 2021 19:38:57 +0000 (15:38 -0400)]
[libc++] [LIBCXX-DEBUG-FIXME] Stop using invalid iterators to insert into sets/maps.
This simply applies Howard's commit
4c80bfbd53caf consistently
across all the associative and unordered container tests.
"unord.set/insert_hint_const_lvalue.pass.cpp" failed with `-D_LIBCPP_DEBUG=1`
before this patch; it was the only one that incorrectly reused
invalid iterator `e`. The others already used valid iterators
(generally `c.end()`); I'm just making them all match the same pattern
of usage: "e, then r, then c.end() for the rest."
Differential Revision: https://reviews.llvm.org/D101679
Arthur O'Dwyer [Tue, 20 Apr 2021 19:59:22 +0000 (15:59 -0400)]
[libc++] [LIBCXX-DEBUG-FIXME] std::advance shouldn't use ADL `>=` on the _Distance type.
Convert to a primitive type first; then use primitive `>=` on that value.
Differential Revision: https://reviews.llvm.org/D101678
Arthur O'Dwyer [Tue, 20 Apr 2021 22:21:59 +0000 (18:21 -0400)]
[libc++] [LIBCXX-DEBUG-FIXME] Our `__debug_less` breaks some complexity guarantees.
`__debug_less` ends up running the comparator up-to-twice per comparison,
because whenever `(x < y)` it goes on to verify that `!(y < x)`.
This breaks the strict "Complexity" guarantees of algorithms like
`inplace_merge`, which we test in the test suite. So, just skip the
complexity assertions in debug mode.
Differential Revision: https://reviews.llvm.org/D101677
Arthur O'Dwyer [Wed, 21 Apr 2021 01:51:41 +0000 (21:51 -0400)]
[libc++] [LIBCXX-DEBUG-FIXME] Iterating a string::iterator "off the end" is UB.
The range of char pointers [data, data+size] is a valid closed range,
but the range [begin, end) is valid only half-open.
Differential Revision: https://reviews.llvm.org/D101676
Arthur O'Dwyer [Tue, 27 Apr 2021 13:10:04 +0000 (09:10 -0400)]
[libc++] [LIBCXX-DEBUG-FIXME] Fix an iterator-invalidation issue in string::assign.
This appears to be a bug in our string::assign: when assigning into
a longer string, from a shorter snippet of itself, we invalidate
iterators before doing the copy. We should invalidate them afterward.
Also drive-by improve the formatting of a function header.
Differential Revision: https://reviews.llvm.org/D101675
Arthur O'Dwyer [Mon, 26 Apr 2021 13:56:50 +0000 (09:56 -0400)]
[libc++] Move <__sso_allocator> out of include/ into src/. NFCI.
This allocator is not intended for libc++'s users to use;
it's strictly an implementation detail of `src/locale.cpp`.
So, move it to the `src/include/` directory.
Drive-by const-qualify its comparison operators.
For consistency with `__hidden_allocator` (defined in `src/thread.cpp`),
do *not* remove it from "libcxx/lib/libc++unexp.exp",
"libcxx/utils/symcheck-blacklists/linux_blacklist.txt", etc.
Differential Revision: https://reviews.llvm.org/D101293
Thomas Lively [Wed, 5 May 2021 20:16:55 +0000 (13:16 -0700)]
[WebAssembly] Fix constness of pointer params to load intrinsics
Update the SIMD builtin load functions to take pointers to const data and update
the intrinsics themselves to not cast away constness.
Differential Revision: https://reviews.llvm.org/D101884
Thomas Lively [Wed, 5 May 2021 20:04:04 +0000 (13:04 -0700)]
[WebAssembly] Update narrowing builtin function operand types
Make the inputs to all narrowing builtins signed, which is how they are
interpreted by the underlying instructions (only the result changes sign
between instructions).
Differential Revision: https://reviews.llvm.org/D101883
Tomasz Miąsko [Wed, 5 May 2021 19:29:03 +0000 (12:29 -0700)]
Add fuzzer for Rust demangler
Reviewed By: dblaikie
Differential Revision: https://reviews.llvm.org/D101823
Jez Ng [Wed, 5 May 2021 19:46:42 +0000 (15:46 -0400)]
[lld-macho] Try to unbreak build
Looks like the PointerUnion casting cares about const-ness...
Martin Storsjö [Mon, 5 Apr 2021 21:17:30 +0000 (00:17 +0300)]
[libcxx] [ci] Add a Windows CI configuration for a statically linked libc++
On Windows, static vs DLL linking affects details in quite a few
cases, so it's good to have coverage for both cases.
Testing with static linking also increases coverage for a number of
cases and individual checks that have had to be waived for the DLL
case, and allows testing libc++experimental, increasing the number
of test cases actually executed by 180 (176 new tests from
libc++experimental and 4 ones that are XFAIL windows-dll).
Also drop the "generic-" prefix from these configuration names, as
they're perhaps not what the "generic" prefix intended originally
in the other generic-posix configurations.
Differential Revision: https://reviews.llvm.org/D101565
Louis Dionne [Wed, 5 May 2021 19:05:45 +0000 (15:05 -0400)]
[libc++] NFC: Remove stray semicolon in from-scratch config files
Thomas Lively [Wed, 5 May 2021 18:59:33 +0000 (11:59 -0700)]
[WebAssembly] Set alignment to 1 for SIMD memory intrinsics
The WebAssembly SIMD intrinsics in wasm_simd128.h generally try not to require
any particular alignment for memory operations to be maximally flexible. For
builtin memory access functions and their corresponding LLVM IR intrinsics,
there's no way to set the expected alignment, so the best we can do is set the
alignment to 1 in the backend. This change means that the alignment hints in the
emitted code will no longer be incorrect when users use the intrinsics to access
unaligned data.
Differential Revision: https://reviews.llvm.org/D101850
Jon Chesterfield [Wed, 5 May 2021 18:58:51 +0000 (19:58 +0100)]
[libomptarget] Initial documentation on amdgpu offload
[libomptarget] Initial documentation on amdgpu offload
Reviewed By: jdoerfert
Differential Revision: https://reviews.llvm.org/D101927
Evgenii Stepanov [Wed, 5 May 2021 02:16:30 +0000 (19:16 -0700)]
[hwasan] Fix missing synchronization in AllocThread.
The problem was introduced in D100348.
It's really hard to trigger the bug in a stress test - the race is just too
narrow - but the new checks in Thread::Init should at least provide usable
diagnostic if the problem ever returns.
Differential Revision: https://reviews.llvm.org/D101881
Jez Ng [Wed, 5 May 2021 18:40:41 +0000 (14:40 -0400)]
[lld-macho] Preliminary support for ARM_RELOC_BR24
ARM_RELOC_BR24 is used for BL/BLX instructions from within ARM (i.e. not
Thumb) code. This diff just handles the basic case: branches from ARM to
ARM, or from ARM to Thumb where no shimming is required. (See comments
in ARM.cpp for why shims are required.)
Note: I will likely be deprioritizing ARM work for the near future to
focus on other parts of LLD. Apologies for the half-done state of this;
I'm just trying to wrap up what I've already worked on.
Reviewed By: #lld-macho, alexshap
Differential Revision: https://reviews.llvm.org/D101814
Jez Ng [Wed, 5 May 2021 18:38:36 +0000 (14:38 -0400)]
[lld-macho] Have --reproduce account for path rerooting
We need to account for path rerooting when generating the response
file. We could either reroot the paths before generating the file, or pass
through the original filenames and change just the syslibroot. I've opted for
the latter, in order that the reproduction run more closely mirrors the
original.
We must also be careful *not* to make an absolute path relative if it is
shadowed by a rerooted path. See repro6.tar in reroot-path.s for
details.
I've moved the call to `createResponseFile()` after the initialization of
`config->systemLibraryRoots`, since it now needs to know what those roots are.
Reviewed By: #lld-macho, oontvoo
Differential Revision: https://reviews.llvm.org/D101224
Harald van Dijk [Wed, 5 May 2021 18:25:34 +0000 (19:25 +0100)]
Make clangd CompletionModel not depend on directory layout.
The current code accounts for two possible layouts, but there is at
least a third supported layout: clang-tools-extra may also be checked
out as clang/tools/extra with the releases, which was not yet handled.
Rather than treating that as a special case, use the location of
CompletionModel.cmake to handle all three cases. This should address the
problems that prompted D96787 and the problems that prompted the
proposed revert D100625.
Reviewed By: usaxena95
Differential Revision: https://reviews.llvm.org/D101851
Nick Desaulniers [Wed, 5 May 2021 18:01:33 +0000 (11:01 -0700)]
[Clang] remove text extension from diag::err_drv_invalid_value_with_suggestion
This hinders translations, as per:
https://clang.llvm.org/docs/InternalsManual.html#the-format-string
Reviewed By: MaskRay, xbolva00
Differential Revision: https://reviews.llvm.org/D101387
Roman Lebedev [Wed, 5 May 2021 17:34:43 +0000 (20:34 +0300)]
[NFC][SimplifyCFG] Update documentation comments for SinkCommonCodeFromPredecessors() after 1886aad
Fangrui Song [Wed, 5 May 2021 17:26:57 +0000 (10:26 -0700)]
[llvm-objcopy][ELF] --only-keep-debug: set offset/size of segments with no sections to zero
PR50160: we currently ignore non-PT_PHDR segments with no sections, not
accounting for its p_offset and p_filesz: this can cause an out-of-bounds write
in `writeSegmentData` if the p_offset+p_filesz is larger than the total file
size.
This can be fixed by setting p_offset=p_filesz=0. The logic nicely unifies with
the logic added in D90897.
Reviewed By: jhenderson, rupprecht
Differential Revision: https://reviews.llvm.org/D101560
Saleem Abdulrasool [Wed, 5 May 2021 17:15:14 +0000 (10:15 -0700)]
RISSCV: clang-format RISC-V AsmParser (NFC)
This corrects a few issues identified by `clang-format`. This is meant
to be preparation for a subsequent change.
Roman Lebedev [Wed, 5 May 2021 16:21:22 +0000 (19:21 +0300)]
[NFC][X86][CostModel] Add tests for byteswap intrinsic
Philipp Krones [Wed, 5 May 2021 17:03:02 +0000 (10:03 -0700)]
[MC] Untangle MCContext and MCObjectFileInfo
This untangles the MCContext and the MCObjectFileInfo. There is a circular
dependency between MCContext and MCObjectFileInfo. Currently this dependency
also exists during construction: You can't contruct a MOFI without a MCContext
without constructing the MCContext with a dummy version of that MOFI first.
This removes this dependency during construction. In a perfect world,
MCObjectFileInfo wouldn't depend on MCContext at all, but only be stored in the
MCContext, like other MC information. This is future work.
This also shifts/adds more information to the MCContext making it more
available to the different targets. Namely:
- TargetTriple
- ObjectFileType
- SubtargetInfo
Reviewed By: MaskRay
Differential Revision: https://reviews.llvm.org/D101462
Philip Reames [Wed, 5 May 2021 16:55:09 +0000 (09:55 -0700)]
[LV] Workaround PR49900 (a crash due to analyzing partially mutated IR)
LoopVectorize has a fairly deeply baked in design problem where it will try to query analysis (primarily SCEV, but also ValueTracking) in the midst of mutating IR. In particular, the intermediate IR state does not represent the semantics of the original (or final) program.
Fixing this for real is hard, but all of the cases seen so far share a common symptom. In cases seen to date, the analysis being queried is the computation of the original loop's trip count. We can fix this particular instance of the issue by simply computing the trip count early, and caching it.
I want to be really clear that this is nothing but a workaround. It does nothing to fix the root issue, and at best, delays the time until we have to fix this for real. Florian and I have discussed an eventual solution in the review comments for https://reviews.llvm.org/D100663, but it's a lot of work.
Test taken from https://reviews.llvm.org/D100663.
Differential Revision: https://reviews.llvm.org/D101487
Javier Setoain [Mon, 19 Apr 2021 14:37:29 +0000 (15:37 +0100)]
[mlir][ArmSVE] Add masked arithmetic operations
These instructions map to SVE-specific instrinsics that accept a
predicate operand to support control flow in vector code.
Differential Revision: https://reviews.llvm.org/D100982
Nico Weber [Wed, 5 May 2021 16:21:54 +0000 (12:21 -0400)]
[clang] remove an incremental build workaround
This cleaned up an oversight over a year ago. Should no longer be needed.
Stanislav Mekhanoshin [Wed, 5 May 2021 16:08:14 +0000 (09:08 -0700)]
[AMDGPU] Pre-commit 2 new saddr load tests. NFC.
Sergei Grechanik [Wed, 5 May 2021 15:33:19 +0000 (08:33 -0700)]
[mlir][Affine][Vector] Support vectorizing reduction loops
This patch adds support for vectorizing loops with 'iter_args'
implementing known reductions along the vector dimension. Comparing to
the non-vector-dimension case, two additional things are done during
vectorization of such loops:
- The resulting vector returned from the loop is reduced to a scalar
using `vector.reduce`.
- In some cases a mask is applied to the vector yielded at the end of
the loop to prevent garbage values from being written to the
accumulator.
Vectorization of reduction loops is disabled by default. To enable it, a
map from loops to array of reduction descriptors should be explicitly passed to
`vectorizeAffineLoops`, or `vectorize-reductions=true` should be passed
to the SuperVectorize pass.
Current limitations:
- Loops with a non-unit step size are not supported.
- n-D vectorization with n > 1 is not supported.
Reviewed By: nicolasvasilache
Differential Revision: https://reviews.llvm.org/D100694
Jinsong Ji [Wed, 5 May 2021 16:10:28 +0000 (16:10 +0000)]
[clang][Driver] Add -fintegrate-as to debug-pass-structure test
CGProfilePass is not always on, it will be disabled when using
non-intergrated assemblers.
// Only enable CGProfilePass when using integrated assembler, since
// non-integrated assemblers don't recognize .cgprofile section.
PMBuilder.CallGraphProfile = !CodeGenOpts.DisableIntegratedAS;
Add -fintegrate-as to make sure the output don't rely on the platform default.
Reviewed By: evgeny777
Differential Revision: https://reviews.llvm.org/D101918
Sushma Unnibhavi [Wed, 5 May 2021 16:07:22 +0000 (21:37 +0530)]
Added a faster method to clone llvm project [DOCS]
Reviewed By: xgupta, amccarth
Differential Revision: https://reviews.llvm.org/D101433
Pooja Yadav [Wed, 5 May 2021 15:57:24 +0000 (21:27 +0530)]
[docs] Update the llvm/example section
Added details about the llvm/example section.
Reviewed By: xgupta
Differential Revision: https://reviews.llvm.org/D101284
Jessica Clarke [Wed, 5 May 2021 16:00:40 +0000 (17:00 +0100)]
Revert "[SelectionDAG][Mips][PowerPC][RISCV][WebAssembly] Teach computeKnownBits/ComputeNumSignBits about atomics"
This seems to have broken sanitizers, giving lots of
Assertion `NumBits <= MAX_INT_BITS && "bitwidth too large"' failed.
failures across multiple targets (currently X86 and PowerPC). Reverting
until I have a chance to reproduce and debug.
This reverts commit
6e876f9dedf00b24a96b8781e3b39d5282c43e91.
Guillaume Chatelet [Wed, 5 May 2021 15:52:42 +0000 (15:52 +0000)]
[libc] Normalize LIBC_TARGET_MACHINE
Current implementation defines LIBC_TARGET_MACHINE with the use of CMAKE_SYSTEM_PROCESSOR.
Unfortunately CMAKE_SYSTEM_PROCESSOR is OS dependent and can produce different results.
An evidence of this is the various matchers used to detect whether the architecture is x86.
This patch normalizes LIBC_TARGET_MACHINE and renames it LIBC_TARGET_ARCHITECTURE.
I've added many architectures but we may want to limit ourselves to x86 and ARM.
Differential Revision: https://reviews.llvm.org/D101524
Fraser Cormack [Wed, 5 May 2021 15:40:28 +0000 (16:40 +0100)]
[RISCV][NFC] Fix up pseudoinstruction name in comment
Jessica Clarke [Wed, 5 May 2021 14:32:34 +0000 (15:32 +0100)]
[SelectionDAG][Mips][PowerPC][RISCV][WebAssembly] Teach computeKnownBits/ComputeNumSignBits about atomics
Unlike normal loads these don't have an extension field, but we know
from TargetLowering whether these are sign-extending or zero-extending,
and so can optimise away unnecessary extensions.
This was noticed on RISC-V, where sign extensions in the calling
convention would result in unnecessary explicit extension instructions,
but this also fixes some Mips inefficiencies. PowerPC sees churn in the
tests as all the zero extensions are only for promoting 32-bit to
64-bit, but these zero extensions are still not optimised away as they
should be, likely due to i32 being a legal type.
This also simplifies the WebAssembly code somewhat, which currently
works around the lack of target-independent combines with some ugly
patterns that break once they're optimised away.
Reviewed By: RKSimon, atanasyan
Differential Revision: https://reviews.llvm.org/D101342
Vang Thao [Tue, 4 May 2021 23:43:07 +0000 (16:43 -0700)]
[GlobalISel] Fix buildZExtInReg creating new register.
Fix a bug where buildZExtInReg will create and use a new register instead of using the register from parameter DstOp Res.
Reviewed By: arsenm, foad
Differential Revision: https://reviews.llvm.org/D101871
Sanjay Patel [Wed, 5 May 2021 14:29:52 +0000 (10:29 -0400)]
[InstCombine] improve readability; NFC
Simon Pilgrim [Wed, 5 May 2021 14:55:53 +0000 (15:55 +0100)]
[MIPS][MSA] Regenerate immediates tests. NFCI.
Simplifies an upcoming patch diff
Simon Pilgrim [Wed, 5 May 2021 14:52:44 +0000 (15:52 +0100)]
[MIPS][MSA] Regenerate i5-b tests. NFCI.
Simplifies an upcoming patch diff
Simon Pilgrim [Wed, 5 May 2021 14:52:03 +0000 (15:52 +0100)]
[MIPS][MSA] Regenerate bitwise tests. NFCI.
Simplifies an upcoming patch diff
Baptiste Saleil [Wed, 5 May 2021 14:56:40 +0000 (10:56 -0400)]
[AMDGPU] Fix llc pipeline lit test for bots enabling expensive checks
Tobias Gysi [Wed, 5 May 2021 13:58:57 +0000 (13:58 +0000)]
[mlir][linalg] Fix bug in the fusion on tensors index op handling.
The old index op handling let the new index operations point back to the
producer block. As a result, after fusion some index operations in the
fused block had back references to the old producer block resulting in
illegal IR. The patch now relies on a block and value mapping to avoid
such back references.
Differential Revision: https://reviews.llvm.org/D101887
Pushpinder Singh [Wed, 5 May 2021 12:02:25 +0000 (12:02 +0000)]
[AMDGPU][OpenMP] Fix clang driver crash when provided -c
The offload action is used in four different ways as explained
in Driver.cpp:4495. When -c is present, the final phase will be
assemble (linker when -c is not present). However, this phase
is skipped according to D96769 for amdgcn. So, offload action
arrives into following situation,
compile (device) ---> offload ---> offload
without -c the chain looks like,
compile (device) ---> offload ---> linker (device)
---> offload
The former situation creates an unhandled case which causes
problem. The solution presented in this patch delays the D96769
logic until job creation time. This keeps the offload action
in the 1 of the 4 specified situations.
Reviewed By: JonChesterfield
Differential Revision: https://reviews.llvm.org/D101901
Anirudh Prasad [Wed, 5 May 2021 14:21:27 +0000 (10:21 -0400)]
[AsmParser][SystemZ][z/OS] Reject character and string literals for HLASM
- As per the HLASM support we are providing, i.e. support only for the first parameter of the inline asm block, only pertaining to Z machine instructions defined in LLVM, character literals and string literals are not supported (see Figure 4 - https://www-01.ibm.com/servers/resourcelink/svc00100.nsf/pages/zOSV2R3sc264940/$file/asmr1023.pdf for more information)
- This patch explicitly rejects the usage of char literals and string literals (for example "abc 'a'") when the relevant field is set
- This is achieved by introducing a field called `LexHLASMStrings` in MCAsmLexer similar to `LexMasmStrings`
Reviewed By: abhina.sreeskantharajan, Kai
Differential Revision: https://reviews.llvm.org/D101660
Stelios Ioannou [Wed, 5 May 2021 10:02:33 +0000 (11:02 +0100)]
[AArch64] Fix for the pre-indexed paired load/store optimization.
This patch fixes an issue where a pre-indexed store e.g.,
STR x1, [x0, #24]! with a store like STR x0, [x0, #8] are
merged into a single store: STP x1, x0, [x0, #24]!
. They shouldn’t be merged because the second store uses
x0 as both the stored value and the address and so it needs to be using the updated x0.
Therefore, it should not be folded into a STP <>pre.
Additionally a new test case is added to verify this fix.
Differential Revision: https://reviews.llvm.org/D101888
Change-Id: I26f1985ac84e970961e2cdca23c590fa6773851a
Anastasia Stulova [Wed, 5 May 2021 12:18:00 +0000 (13:18 +0100)]
[OpenCL] Add clang extension for non-portable kernel parameters.
Added __cl_clang_non_portable_kernel_param_types extension that
allows using non-portable types as kernel parameters. This allows
bypassing the portability guarantees from the restrictions specified
in C++ for OpenCL v1.0 s2.4.
Currently this only disables the restrictions related to the data
layout. The programmer should ensure the compiler generates the same
layout for host and device or otherwise the argument should only be
accessed on the device side. This extension could be extended to other
case (e.g. permitting size_t) if desired in the future.
Patch by olestrohm (Ole Strohm)!
https://reviews.llvm.org/D101168
Jinsong Ji [Wed, 5 May 2021 13:51:02 +0000 (13:51 +0000)]
[DebugInfo][test][MIPS] Use mtriple in tests
Mips tests are using -march in RUN lines,
this will fail on AIX OS , when we get the mips-ibm-aix triple.
This is caused/exposed recently due to https://reviews.llvm.org/D101194 changed the default getMultiarchTriple in toolchain.
Update the tests to use -mtriple instead to avoid unintended failures.
Reviewed By: atanasyan
Differential Revision: https://reviews.llvm.org/D101863
Abhina Sreeskantharajan [Wed, 5 May 2021 13:41:45 +0000 (09:41 -0400)]
[SystemZ][z/OS] Fix return values in AutoConversion functions
My previous patch https://reviews.llvm.org/rG1527a5e4b4834e65678f9c30f786a2f4c17932bf incorrectly set int return values instead of std::error_code. This patch correctly returns and std::error_code value.
Reviewed By: fanbo-meng, Jonathan.Crowther
Differential Revision: https://reviews.llvm.org/D101904
Andrew Savonichev [Thu, 29 Apr 2021 16:34:39 +0000 (19:34 +0300)]
[AArch64] Fix scalar imm variants of SIMD shift left instructions
This issue was reported in PR50057: Cannot select:
t10: i64 = AArch64ISD::VSHL t2, Constant:i32<2>
Shift intrinsics (llvm.aarch64.neon.ushl.i64 and sshl) with a constant
shift operand are lowered into AArch64ISD::VSHL in tryCombineShiftImm.
VSHL has i64 and v1i64 patterns for a right shift, but only v1i64 for
a left shift.
This patch adds the missing i64 pattern for AArch64ISD::VSHL, and LIT
tests to cover scalar variants (i64 and v1i64) of all shift
intrinsics (only ushl and sshl cases fail without the patch, others
were just not covered).
Differential Revision: https://reviews.llvm.org/D101580
Bjorn Pettersson [Tue, 4 May 2021 17:08:58 +0000 (19:08 +0200)]
Make dependency between certain analysis passes transitive (reapply)
LazyBlockFrequenceInfoPass, LazyBranchProbabilityInfoPass and
LoopAccessLegacyAnalysis all cache pointers to their nestled required
analysis passes. One need to use addRequiredTransitive to describe
that the nestled passes can't be freed until those analysis passes
no longer are used themselves.
There is still a bit of a mess considering the getLazyBPIAnalysisUsage
and getLazyBFIAnalysisUsage functions. Those functions are used from
both Transform, CodeGen and Analysis passes. I figure it is OK to
use addRequiredTransitive also when being used from Transform and
CodeGen passes. On the other hand, I figure we must do it when
used from other Analysis passes. So using addRequiredTransitive should
be more correct here. An alternative solution would be to add a
bool option in those functions to let the user tell if it is a
analysis pass or not. Since those lazy passes will be obsolete when
new PM has conquered the world I figure we can leave it like this
right now.
Intention with the patch is to fix PR49950. It at least solves the
problem for the reproducer in PR49950. However, that reproducer
need five passes in a specific order, so there are lots of various
"solutions" that could avoid the crash without actually fixing the
root cause.
This is a reapply of commit
3655f0757f2b4b, that was reverted in
33ff3c20498ef5c2057 due to problems with assertions in the polly
lit tests. That problem is supposed to be solved by also adjusting
ScopPass to explicitly preserve LazyBlockFrequencyInfo and
LazyBranchProbabilityInfo (it already preserved
OptimizationRemarkEmitter which depends on those lazy passes).
Differential Revision: https://reviews.llvm.org/D100958
Simon Pilgrim [Wed, 5 May 2021 11:21:30 +0000 (12:21 +0100)]
[X86][SSE] Move unpack(hop,hop) fold from foldShuffleOfHorizOp to combineTargetShuffle
By moving this after more of the shuffle canonicalization we reduce the demanded vector elts, avoiding a few unnecessary copies/moves etc.
Martin Storsjö [Wed, 5 May 2021 12:23:14 +0000 (15:23 +0300)]
Revert "[Passes] Enable the relative lookup table converter pass on aarch64"
This reverts commit
57b259a852a6383880f5d0875d848420bb3c2945.
The relative lookup table converter pass seems to cause problems
for chromium on Windows/ARM64, see https://crbug.com/1204788.
Fraser Cormack [Wed, 5 May 2021 12:11:11 +0000 (13:11 +0100)]
[RISCV][VP][NFC] Add tests for VP_SREM and VP_UREM
As agreed in D101826, these are follow-up tests for the RISC-V VP
support.
Jay Foad [Wed, 5 May 2021 12:05:38 +0000 (13:05 +0100)]
[AMDGPU] Autogenerate checks for a clustering test and add GFX10
Fraser Cormack [Wed, 5 May 2021 12:08:11 +0000 (13:08 +0100)]
[RISCV][VP][NFC] Add tests for VP_MUL and VP_[US]DIV
As agreed in D101826, these are follow-up tests for the RISC-V VP
support.
Alexey Bataev [Tue, 4 May 2021 14:48:06 +0000 (07:48 -0700)]
[X86]Fix a crash trying to convert indices to proper type.
Need to perfortm a bitcast on IndicesVec rather than subvector extract
if the original size of the IndicesVec is the same as the size of the
destination type.
Differential Revision: https://reviews.llvm.org/D101838
Uday Bondhugula [Wed, 5 May 2021 07:47:33 +0000 (13:17 +0530)]
[MLIR] Rename free function `verify` on OffsetSizeAndStrideOpInterface
Using a free function verify(<Op>) is error prone. Rename it.
Differential Revision: https://reviews.llvm.org/D101886
Fraser Cormack [Wed, 5 May 2021 12:01:04 +0000 (13:01 +0100)]
[RISCV][VP][NFC] Add tests for VP_SHL and VP_LSHR
As agreed in D101826, these are follow-up tests for the RISC-V VP
support. Tests for VP_ASHR were landed as part of D101826.
Fraser Cormack [Wed, 5 May 2021 11:56:16 +0000 (12:56 +0100)]
[RISCV][VP][NFC] Add tests for VP_AND, VP_XOR, VP_OR
As agreed in D101826, these are follow-up tests for the RISC-V VP
support.
Fraser Cormack [Thu, 29 Apr 2021 15:58:56 +0000 (16:58 +0100)]
[RISCV][VP] Lower VP ISD nodes to RVV instructions
This patch supports all of the current set of VP integer binary
intrinsics by lowering them to to RVV instructions. It does so by using
the existing RISCVISD *_VL custom nodes as an intermediate layer. Both
scalable and fixed-length vectors are supported by using this method.
One notable change to the existing vector codegen strategy is that
scalable all-ones and all-zeros mask SPLAT_VECTORs are now lowered to
RISCVISD VMSET_VL and VMCLR_VL nodes to match their fixed-length
BUILD_VECTOR counterparts. This allows them to reuse the existing
"all-ones" VL patterns.
To reduce the size of the phabricator diff, some tests are intentionally
left out and will be added later if the patch is accepted.
Reviewed By: craig.topper
Differential Revision: https://reviews.llvm.org/D101826
Alexander Belyaev [Wed, 5 May 2021 09:02:24 +0000 (11:02 +0200)]
[mlir] Use ReassociationIndices instead of affine maps in linalg.reshape.
Differential Revision: https://reviews.llvm.org/D101861