Marek Kurdej [Wed, 2 Feb 2022 13:17:57 +0000 (14:17 +0100)]
[clang-format] Simplify use of StringRef::substr(). NFC.
Arjun P [Wed, 2 Feb 2022 13:26:01 +0000 (18:56 +0530)]
[MLIR][Presburger] maybeLocalRepr: rename inEqualityPair -> inequalityPair
Sanjay Patel [Wed, 2 Feb 2022 13:01:23 +0000 (08:01 -0500)]
[x86] invert a vector select IR canonicalization with a binop identity constant
This is an intentionally limited/different form of D90113.
That patch bravely tries to generalize folds where we pull
a binop into the arms of a select:
N0 + (Cond ? 0 : FVal) --> Cond ? N0 : (N0 + FVal)
...but it is not universally profitable.
This is the inverse of IR canonicalization as discussed in
D113442.
We know that this transform is not entirely profitable even
within x86, so we only handle x86 vector fadd/fsub as a 1st
step. The intent is to prevent AVX512 regressions as mentioned
in D113442.
The plan is to port this to DAGCombiner (so it will eventually
look more like D90113) and add more types/cases in pieces with
many more tests to verify that we are seeing improvements.
Differential Revision: https://reviews.llvm.org/D118644
Nathan Sidwell [Tue, 1 Feb 2022 15:49:28 +0000 (07:49 -0800)]
[clang][NFC] Remove unreachable code
NamespaceDecls are NamedDecls, so NSD can never be non-null in the
else branch. Add a comment about this whole ModuleInternal linkage
concept going away when p1815 is implemented.
Reviewed By: bruno
Differential Revision: https://reviews.llvm.org/D118704
Arjun P [Wed, 2 Feb 2022 13:07:13 +0000 (18:37 +0530)]
[MLIR][Presburger] Support isSubsetOf in PresburgerSet and IntegerPolyhedron
Also support isEqual in IntegerPolyhedron.
Reviewed By: Groverkss
Differential Revision: https://reviews.llvm.org/D118778
Pavel Labath [Mon, 31 Jan 2022 14:57:48 +0000 (15:57 +0100)]
[lldb] Convert "LLDB" log channel to the new API
Marek Kurdej [Wed, 2 Feb 2022 13:01:12 +0000 (14:01 +0100)]
[clang-format] Use prefix operator--. NFC.
Marek Kurdej [Wed, 2 Feb 2022 12:59:53 +0000 (13:59 +0100)]
[clang-format] Use llvm::seq instead of std::iota. NFC.
Jeremy Morse [Wed, 2 Feb 2022 12:23:52 +0000 (12:23 +0000)]
[DebugInfo][InstrRef][NFC] Free resources at an earlier stage
This patch releases some memory from InstrRefBasedLDV earlier that it would
otherwise. The underlying problem is:
* We store a big table of "live in values for each block",
* We translate that into DBG_VALUE instructions in each block,
And both exist in memory at the same time, which needlessly doubles that
information. The most of what this patch does is: as we progressively
translate live-in information into DBG_VALUEs, we free the variable-value /
machine-value tracking information as we go, which significantly reduces
peak memory.
While I'm here, also add a clear method to wipe variable assignments that
have been accumulated into VLocTracker objects, and turn a DenseMap into
a SmallDenseMap to avoid an initial allocation.
Differential Revision: https://reviews.llvm.org/D118453
Lancelot SIX [Wed, 2 Feb 2022 12:30:39 +0000 (13:30 +0100)]
[Docs][NFC] Contributing.rst: fix wording
Fix a sentence containing two consecutive 'and'.
Arjun P [Wed, 2 Feb 2022 12:26:30 +0000 (17:56 +0530)]
[MLIR] PresburgerSet::isIntegerEmpty: address clang-tidy warning
Guillaume Chatelet [Wed, 2 Feb 2022 11:20:43 +0000 (11:20 +0000)]
[NFC][libc] Remove unneeded gtest and benchmark configuration
Differential Revision: https://reviews.llvm.org/D118770
Jeremy Morse [Wed, 2 Feb 2022 12:12:32 +0000 (12:12 +0000)]
[DebugInfo][InstrRef][NFC] Cache some PHI resolutions
Install a cache of DBG_INSTR_REF -> ValueIDNum resolutions, for scenarios
where the value has to be reconstructed from several DBG_PHIs. Whenever
this happens, it's because branch folding + tail duplication has messed
with the SSA form of the program, and we have to solve a mini SSA problem
to find the variable value. This is always called twice, so it makes sense
to cache the value.
This gives a ~0.5% geomean compile-time-performance improvement on CTMark.
Differential Revision: https://reviews.llvm.org/D118455
Arjun P [Wed, 2 Feb 2022 11:49:59 +0000 (17:19 +0530)]
[MLIR][AffineAnalysis] Fix typo in comment (NFC)
Arjun P [Wed, 2 Feb 2022 12:09:32 +0000 (17:39 +0530)]
[MLIR] Matrix: support matrix-vector multiplication
This just moves in the implementation from LinearTransform.
Reviewed By: Groverkss, bondhugula
Differential Revision: https://reviews.llvm.org/D118479
Benjamin Kramer [Wed, 2 Feb 2022 12:02:35 +0000 (13:02 +0100)]
Revert "[SLP]Alternate vectorization for cmp instructions."
This reverts commit
83620bd2ad867f706c699d0f2b8be10e43d9f3d7.
It's causing miscompilations, see review comments at
https://reviews.llvm.org/D115955
Malhar Jajoo [Wed, 2 Feb 2022 02:06:38 +0000 (02:06 +0000)]
[LAA] Add Memory dependence remarks.
Adds new optimization remarks when vectorization fails.
More specifically, new remarks are added for following 4 cases:
- Backward dependency
- Backward dependency that prevents Store-to-load forwarding
- Forward dependency that prevents Store-to-load forwarding
- Unknown dependency
It is important to note that only one of the sources
of failures (to vectorize) is reported by the remarks.
This source of failure may not be first in program order.
A regression test has been added to test the following cases:
a) Loop can be vectorized: No optimization remark is emitted
b) Loop can not be vectorized: In this case an optimization
remark will be emitted for one source of failure.
Reviewed By: sdesmalen, david-arm
Differential Revision: https://reviews.llvm.org/D108371
Simon Pilgrim [Wed, 2 Feb 2022 11:40:27 +0000 (11:40 +0000)]
[DAG] SimplifyDemandedVectorElts - remove KnownZero/KnownUndef from DCI helper wrapper
None of the external users actual touch these (they're purely used internally down the recursive call) - its trivial to add another wrapper if anything ever does want to track known elements.
Balazs Benics [Wed, 2 Feb 2022 11:55:44 +0000 (12:55 +0100)]
[scan-build] Fix deadlock at failures in libears/ear.c
We experienced some deadlocks when we used multiple threads for logging
using `scan-builds` intercept-build tool when we used multiple threads by
e.g. logging `make -j16`
```
(gdb) bt
#0 0x00007f2bb3aff110 in __lll_lock_wait () from /lib/x86_64-linux-gnu/libpthread.so.0
#1 0x00007f2bb3af70a3 in pthread_mutex_lock () from /lib/x86_64-linux-gnu/libpthread.so.0
#2 0x00007f2bb3d152e4 in ?? ()
#3 0x00007ffcc5f0cc80 in ?? ()
#4 0x00007f2bb3d2bf5b in ?? () from /lib64/ld-linux-x86-64.so.2
#5 0x00007f2bb3b5da27 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#6 0x00007f2bb3b5dbe0 in exit () from /lib/x86_64-linux-gnu/libc.so.6
#7 0x00007f2bb3d144ee in ?? ()
#8 0x746e692f706d742f in ?? ()
#9 0x692d747065637265 in ?? ()
#10 0x2f653631326b3034 in ?? ()
#11 0x646d632e35353532 in ?? ()
#12 0x0000000000000000 in ?? ()
```
I think the gcc's exit call caused the injected `libear.so` to be unloaded
by the `ld`, which in turn called the `void on_unload() __attribute__((destructor))`.
That tried to acquire an already locked mutex which was left locked in the
`bear_report_call()` call, that probably encountered some error and
returned early when it forgot to unlock the mutex.
All of these are speculation since from the backtrace I could not verify
if frames 2 and 3 are in fact corresponding to the `libear.so` module.
But I think it's a fairly safe bet.
So, hereby I'm releasing the held mutex on *all paths*, even if some failure
happens.
PS: I would use lock_guards, but it's C.
Reviewed-by: NoQ
Differential Revision: https://reviews.llvm.org/D118439
Guillaume Chatelet [Wed, 2 Feb 2022 11:28:06 +0000 (11:28 +0000)]
[libc] Fix automemcpy test by adding memmove configuration
Jeremy Morse [Tue, 1 Feb 2022 19:19:20 +0000 (19:19 +0000)]
Re-apply
3fab2d138e30, now with a triple added
Was reverted in
1c1b670a73a9 as it broke all non-x86 bots. Original commit
message:
[DebugInfo][InstrRef] Add a max-stack-slots-to-track cut-out
In certain circumstances with things like autogenerated code and asan, you
can end up with thousands of Values live at the same time, causing a large
working set and a lot of information spilled to the stack. Unfortunately
InstrRefBasedLDV doesn't cope well with this and consumes a lot of memory
when there are many many stack slots. See the reproducer in D116821.
It seems very unlikely that a developer would be able to reason about
hundreds of live named local variables at the same time, so a huge working
set and many stack slots is an indicator that we're likely analysing
autogenerated or instrumented code. In those cases: gracefully degrade by
setting an upper bound on the amount of stack slots to track. This limits
peak memory consumption, at the cost of dropping some variable locations,
but in a rare scenario where it's unlikely someone is actually going to
use them.
In terms of the patch, this adds a cl::opt for max number of stack slots to
track, and has the stack-slot-numbering code optionally return None. That
then filters through a number of code paths, which can then chose to not
track a spill / restore if it touches an untracked spill slot. The added
test checks that we drop variable locations that are on the stack, if we
set the limit to zero.
Differential Revision: https://reviews.llvm.org/D118601
Nicolas Vasilache [Wed, 2 Feb 2022 10:21:02 +0000 (05:21 -0500)]
[mlir][vector] Avoid hoisting alloca'ed temporary buffers across AutomaticAllocationScope
This revision avoids incorrect hoisting of alloca'd buffers across an AutomaticAllocationScope boundary.
In the more general case, we will probably need a ParallelScope-like interface.
Differential Revision: https://reviews.llvm.org/D118768
Pierre Gousseau [Wed, 2 Feb 2022 10:54:22 +0000 (10:54 +0000)]
[MSVC] Workaround missing search path for sanitizer headers.
This is to fix build errors "Cannot open include file:
'sanitizer/asan_interface.h'" when building LLVM with MSVC and
LLVM_USE_SANITIZER=Address.
asan_interface.h is not available in MSVC's search path, instead it is
located under %VCToolsInstallDir%/crt/src/sanitizer.
This is an alternate solution to https://reviews.llvm.org/D118159, to
avoid adding all internal crt sources to the header search paths.
Tested with visual studio 2019 v16.9.6 and visual studio 2022 v17.0.5
Reviewed By: aaron.ballman, rnk
Differential Revision: https://reviews.llvm.org/D118624
Markus Böck [Wed, 2 Feb 2022 10:57:16 +0000 (11:57 +0100)]
[mlir] Fully qualify generated C++ code in RewriterGen.cpp
By fully qualifying the use of any types and functions from the mlir namespace, users are not required to add using namespace mlir; into the C++ file including the Tablegen output.
Differential Revision: https://reviews.llvm.org/D118767
Balazs Benics [Wed, 2 Feb 2022 10:44:27 +0000 (11:44 +0100)]
Revert "[analyzer] Prevent misuses of -analyze-function"
This reverts commit
9d6a6159730171bc0faf78d7f109d6543f4c93c2.
Exit Code: 1
Command Output (stderr):
--
/scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/Analysis/analyze-function-guide.cpp:53:21: error: CHECK-EMPTY-NOT: excluded string found in input // CHECK-EMPTY-NOT: Every top-level function was skipped.
^
<stdin>:1:1: note: found here
Every top-level function was skipped.
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Input file: <stdin>
Check file: /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/Analysis/analyze-function-guide.cpp
-dump-input=help explains the following input dump.
Input was:
<<<<<<
1: Every top-level function was skipped.
not:53 !~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ error: no match expected
2: Pass the -analyzer-display-progress for tracking which functions are analyzed.
>>>>>>
Nikita Popov [Wed, 2 Feb 2022 10:20:55 +0000 (11:20 +0100)]
[AVR] Avoid reusing the same variable name (NFC)
Apparently GCC 5.4 (a supported compiler) has a bug where it will
use the "MachineInstr &MI" defined by the range-based for loop
to evaluate the for loop expression. Pick a different variable
name to avoid this.
Balazs Benics [Wed, 2 Feb 2022 10:31:22 +0000 (11:31 +0100)]
[analyzer] Prevent misuses of -analyze-function
Sometimes when I pass the mentioned option I forget about passing the
parameter list for c++ sources.
It would be also useful newcomers to learn about this.
This patch introduces some logic checking common misuses involving
`-analyze-function`.
Reviewed-By: martong
Differential Revision: https://reviews.llvm.org/D118690
Sven van Haastregt [Wed, 2 Feb 2022 10:23:02 +0000 (10:23 +0000)]
[OpenCL] Test -fdeclare-opencl-builtins with CL3 and CLC++2021
But only test in combination with -finclude-default-header, as the
headerless tests may be dropped soon.
Nicolas Vasilache [Wed, 2 Feb 2022 10:01:42 +0000 (05:01 -0500)]
[mlir][async] Add AutomaticAllocationScope to async::ExecuteOp
Differential Revision: https://reviews.llvm.org/D118761
Sam Parker [Wed, 2 Feb 2022 10:05:15 +0000 (10:05 +0000)]
[TypePromotion] Avoid some unnecessary truncs
Check for legal zext 'sinks' before inserting a trunc.
Differential Revision: https://reviews.llvm.org/D115451
Nikolas Klauser [Tue, 1 Feb 2022 20:36:50 +0000 (21:36 +0100)]
[libc++][P2321R2] Add specializations of basic_common_reference and common_type for pair
Add specializations of basic_common_reference and common_type for pair
Reviewed By: Quuxplusone, Mordante, #libc
Spies: libcxx-commits
Differential Revision: https://reviews.llvm.org/D117506
David Sherwood [Wed, 19 Jan 2022 11:52:31 +0000 (11:52 +0000)]
[AArch64][CodeGen] Always use SVE (when enabled) to lower integer divides
This patch adds custom lowering support for ISD::SDIV and ISD::UDIV
when SVE is enabled, regardless of the minimum SVE vector length. We do
this because NEON simply does not have vector integer divide support, so
we want to take advantage of these instructions in SVE.
As part of this patch I've also simplified LowerToPredicatedOp to avoid
re-asking the same question about whether we should be using SVE for
fixed length vectors. Once we've made the decision to call
LowerToPredicatedOp, then we should simply assert we should be using SVE.
I've updated the 128-bit min SVE vector bits tests here:
CodeGen/AArch64/sve-fixed-length-int-div.ll
CodeGen/AArch64/sve-fixed-length-int-rem.ll
Differential Revision: https://reviews.llvm.org/D117871
Florian Hahn [Wed, 2 Feb 2022 09:44:15 +0000 (09:44 +0000)]
[GVN] Replace PointerIntPair with separate pointer & kind fields (NFC).
After adding another value kind in
8a12cae862af, Value * pointers do not
have enough available empty bits to store the kind (e.g. on ARM)
To address this, the patch replaces the PointerIntPair with separate
value and kind fields.
Tobias Hieta [Wed, 2 Feb 2022 09:06:37 +0000 (10:06 +0100)]
[compiler-rt][Darwin] Add arm64 to simulator platforms
I was looking around and noticed that builtins for iossim, tvossim
and watchossim was missing arm64 builds, while apple's clang
toolchain ship with these. After a bit of searching around it just
seems like these are not listed correctly in CMake to be enabled.
I enabled just arm64 since I saw that Apple clang didn't include
arm64e.
Reviewed By: t.p.northover
Differential Revision: https://reviews.llvm.org/D118759
Marek Kurdej [Wed, 2 Feb 2022 09:13:12 +0000 (10:13 +0100)]
[clang-format] Correctly parse C99 digraphs: "<:", ":>", "<%", "%>", "%:", "%:%:".
Fixes https://github.com/llvm/llvm-project/issues/31592.
This commits enables lexing of digraphs in C++11 and onwards.
Enabling them in C++03 is error-prone, as it would unconditionally treat sequences like "<:" as digraphs, even if they are followed by a single colon, e.g. "<::" would be treated as "[:" instead of "<" followed by "::". Lexing in C++11 doesn't have this problem as it looks ahead the following token.
The relevant excerpt from Lexer::LexTokenInternal:
```
// C++0x [lex.pptoken]p3:
// Otherwise, if the next three characters are <:: and the subsequent
// character is neither : nor >, the < is treated as a preprocessor
// token by itself and not as the first character of the alternative
// token <:.
```
Also, note that both clang and gcc turn on digraphs by default (-fdigraphs), so clang-format should match this behaviour.
Reviewed By: MyDeveloperDay, HazardyKnusperkeks, owenpan
Differential Revision: https://reviews.llvm.org/D118706
Florian Hahn [Wed, 2 Feb 2022 09:23:09 +0000 (09:23 +0000)]
[GVN] Support load of pointer-select to value-select conversion.
This patch extends the available-value logic to detect loads
of pointer-selects that can be replaced by a value select.
For example, consider the code below:
loop:
%sel.phi = phi i32* [ %start, %ph ], [ %sel, %ph ]
%l = load %ptr
%l.sel = load %sel.phi
%sel = select cond, %ptr, %sel.phi
...
exit:
%res = load %sel
use(%res)
The load of the pointer phi can be replaced by a load of the start value
outside the loop and a new phi/select chain based on the loaded values,
as illustrated below
%l.start = load %start
loop:
sel.phi.prom = phi i32 [ %l.start, %ph ], [ %sel.prom, %ph ]
%l = load %ptr
%sel.prom = select cond, %l, %sel.phi.prom
...
exit:
use(%sel.prom)
This is a first step towards alllowing vectorizing loops using common libc++
library functions, like std::min_element (https://clang.godbolt.org/z/6czGzzqbs)
#include <vector>
#include <algorithm>
int foo(const std::vector<int> &V) {
return *std::min_element(V.begin(), V.end());
}
Reviewed By: reames
Differential Revision: https://reviews.llvm.org/D118143
gysit [Wed, 2 Feb 2022 09:06:31 +0000 (09:06 +0000)]
[mlir][vector] Make write permutation lowering work with tensors.
Use type inference when building the TransferWriteOp in the TransferWritePermutationLowering. Previously, the result type has been set to Type() which triggers an assertion if the pattern is used with tensors instead of memrefs.
Reviewed By: springerm
Differential Revision: https://reviews.llvm.org/D118758
Simon Moll [Wed, 2 Feb 2022 08:40:52 +0000 (09:40 +0100)]
[VE] Packed v512f32 binop isel and tests
Reviewed By: kaz7
Differential Revision: https://reviews.llvm.org/D118335
Cullen Rhodes [Tue, 1 Feb 2022 20:46:46 +0000 (20:46 +0000)]
[AArch64][SVE] NFC: tidy up isel lowering
Whilst adding legal types <-> register classes for Streaming SVE in
D118561 I noticed the hasSVE predication block set operation actions for
opcodes that may not be legal in Streaming SVE. Move these operations to
the later hasSVE block which has loops over the same types.
Reviewed By: sdesmalen
Differential Revision: https://reviews.llvm.org/D118560
Markus Lavin [Wed, 2 Feb 2022 08:31:29 +0000 (09:31 +0100)]
[llvm-reduce] Display all relevant options in -help
Previously the options category given to cl::HideUnrelatedOptions was
local to llvm-reduce.cpp and as a result only options declared in that
file were visible in the -help options listing. This was a bit
unfortunate since there were several useful options declared in other
files. This patch addresses that.
Differential Revision: https://reviews.llvm.org/D118682
Nikita Popov [Wed, 2 Feb 2022 08:43:38 +0000 (09:43 +0100)]
[ArgPromotion] Add test for volatile and atomic loads (NFC)
Argument promotion does handle these correctly (by not promoting
them), but there were no tests to ensure this.
Jean Perier [Wed, 2 Feb 2022 08:21:44 +0000 (09:21 +0100)]
[flang][optimizer] support aggregate types inside tuple and record type
This patch allows:
- fir.box type to be a member of tuple<> or fir.type<> types,
- tuple<> type to be a member of tuple<> type.
When a fir.box types are nested in tuple<> or fir.type<>, it is translated
to the struct type of a Fortran runtime descriptor, and not a
pointer to a descriptor. This is because the fir.box is owned by the tuple
or fir.type.
FIR type translation was also flattening nested tuple while lowering to LLVM
dialect types. There does not seem to be a deep reason for doing that
and doing it causes issues in fir.coordinate_of generated on such tuple
(a fir.coordinate_of getting tuple<B, C> in tuple<A, tuple<B, C>>
ended-up lowered to an LLVM GEP getting B).
Differential Revision: https://reviews.llvm.org/D118701
Simon Moll [Wed, 2 Feb 2022 08:11:33 +0000 (09:11 +0100)]
[VE] LEGALAVL and staged VVP legalization
The new LEGALAVL node annotates that the AVL refers to packs of 64bit.
We use a two-stage lowering approach with LEGALAVL:
First, standard SDNodes are translated into illegal VVP layer nodes.
Regardless of source (VP or standard), all VVP nodes have a mask and AVL
parameter. The AVL parameter refers to the element position (just as in
VP intrinsics).
Second, we legalize the AVL usage in VVP layer nodes. If the element
size is < 64bit, the EVL parameter has to be adjusted to refer to packs
of 64bits. We wrap the legalized AVL in a LEGALAVL node to track this.
Reviewed By: kaz7
Differential Revision: https://reviews.llvm.org/D118321
Ayke van Laethem [Sun, 23 Jan 2022 16:55:30 +0000 (17:55 +0100)]
[AVR][NFC] Make atomics tests easier to read
Use the same mnemonics in the tests that are used in the AtomicLoadOp
pattern ($rd, $rr) but use RR1 instead of $operand. This matches similar
tests in load8.ll.
Differential Revision: https://reviews.llvm.org/D117991
Ayke van Laethem [Wed, 19 Jan 2022 22:30:54 +0000 (23:30 +0100)]
[AVR] Fix atomicrmw result value
This patch fixes the atomicrmw result value to be the value before the
operation instead of the value after the operation. This was a bug, left
as a FIXME in the code (see https://reviews.llvm.org/D97127).
From the LangRef:
> The contents of memory at the location specified by the <pointer>
> operand are atomically read, modified, and written back. The original
> value at the location is returned.
Doing this expansion early allows the register allocator to arrange
registers in such a way that commutable operations are simply swapped
around as needed, which results in shorter code while still being
correct.
Differential Revision: https://reviews.llvm.org/D117725
Tom Stellard [Wed, 2 Feb 2022 07:29:29 +0000 (23:29 -0800)]
Bump the trunk major version to 15
Valentin Clement [Wed, 2 Feb 2022 07:15:26 +0000 (08:15 +0100)]
[flang] Lower PAUSE statement
Lower the PAUSE statement to a runtime call.
This patch is part of the upstreaming effort from fir-dev branch.
Reviewed By: kiranchandramohan, schweitz
Differential Revision: https://reviews.llvm.org/D118699
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
Tom Stellard [Wed, 2 Feb 2022 07:13:01 +0000 (23:13 -0800)]
[docs] Remove hard-coded version numbers from sphinx configs
This updates all the non-runtime project release notes to use the
version number from CMake instead of the hard-coded version numbers
in conf.py.
It also hides warnings about pre-releases when the git suffix
is dropped from the LLVM version in CMake.
Reviewed By: MaskRay
Differential Revision: https://reviews.llvm.org/D112181
Stephen Neuendorffer [Tue, 1 Feb 2022 01:56:42 +0000 (17:56 -0800)]
[cmake][NFC] Configuration for libLLVM.so symbol versioning
Symbol versioning can prevent unintented install-time conflicts
between different llvm versions. Users may need to override this
for particular products (e.g. Julia), but this requires carrying
a source code patch. This patch moves this ability to a
configuration option. NFC for existing usage.
Differential Revision: https://reviews.llvm.org/D118672
serge-sans-paille [Wed, 2 Feb 2022 06:49:40 +0000 (07:49 +0100)]
Add missing includes after LLVMCore header cleanup
- conditionally include header only used for expensive check
- have Core.h always include llvm-c/ErrorHandling.h
Tanya Lattner [Wed, 2 Feb 2022 06:25:31 +0000 (22:25 -0800)]
Update status on migration again. Add note about issues with reply by email from emails pre-migration.
Alexander Shaposhnikov [Wed, 2 Feb 2022 06:08:05 +0000 (06:08 +0000)]
[lld][ELF] Add support for ADRP+ADD optimization for AArch64
This diff adds support for ADRP+ADD optimization for AArch64 described in
https://github.com/ARM-software/abi-aa/commit/
d2ca58c54b8e955cfef25c71822f837ae0439d73
i.e. under appropriate constraints
ADRP x0, symbol
ADD x0, x0, :lo12: symbol
can be turned into
NOP
ADR x0, symbol
Test plan: make check-all
Differential revision: https://reviews.llvm.org/D117614
serge-sans-paille [Mon, 31 Jan 2022 21:35:07 +0000 (22:35 +0100)]
Cleanup header dependencies in LLVMCore
Based on the output of include-what-you-use.
This is a big chunk of changes. It is very likely to break downstream code
unless they took a lot of care in avoiding hidden ehader dependencies, something
the LLVM codebase doesn't do that well :-/
I've tried to summarize the biggest change below:
- llvm/include/llvm-c/Core.h: no longer includes llvm-c/ErrorHandling.h
- llvm/IR/DIBuilder.h no longer includes llvm/IR/DebugInfo.h
- llvm/IR/IRBuilder.h no longer includes llvm/IR/IntrinsicInst.h
- llvm/IR/LLVMRemarkStreamer.h no longer includes llvm/Support/ToolOutputFile.h
- llvm/IR/LegacyPassManager.h no longer include llvm/Pass.h
- llvm/IR/Type.h no longer includes llvm/ADT/SmallPtrSet.h
- llvm/IR/PassManager.h no longer includes llvm/Pass.h nor llvm/Support/Debug.h
And the usual count of preprocessed lines:
$ clang++ -E -Iinclude -I../llvm/include ../llvm/lib/IR/*.cpp -std=c++14 -fno-rtti -fno-exceptions | wc -l
before: 6400831
after: 6189948
200k lines less to process is no that bad ;-)
Discourse thread on the topic: https://llvm.discourse.group/t/include-what-you-use-include-cleanup
Differential Revision: https://reviews.llvm.org/D118652
Craig Topper [Wed, 2 Feb 2022 05:30:58 +0000 (21:30 -0800)]
[RISCV] Fix some 80 column violations in ComputeNumSignBitsForTargetNode. NFC
Craig Topper [Wed, 2 Feb 2022 05:07:02 +0000 (21:07 -0800)]
[TableGen][RISCV] Relax a restriction in generating patterns for commutable SDNodes.
Previously, all children would be checked to see if any were an
explicit Register. If anywhere no commutable patterns would be
generated. This patch loosens the restriction to only check the
children that are being commuted.
Digging back through history, this code predates the existence of
commutable intrinsics and commutable SDNodes with more than 2
operands. At that time the loop would count the number of children that
weren't registers and if that was equal to 2 it would allow commuting.
I don't think this loop was re-considered when commutable
intrinsics were added or when we allowed SDNodes with more than 2
operands.
This important for RISCV were our isel patterns have a V0 mask
operand after the commutable operands on some RISCVISD opcodes.
Reviewed By: arsenm
Differential Revision: https://reviews.llvm.org/D117955
Mogball [Wed, 2 Feb 2022 04:29:57 +0000 (04:29 +0000)]
[mlir][ods] NFC Fix ASAN error in FormatParser
Some FormatElement subclasses contain `std::vector`. Since these use
BumpPtrAllocator, they need to be converted to trailing objects.
However, this is not a trivial fix so I will leave it as a FIXME and use
a workaround.
Nico Weber [Wed, 2 Feb 2022 03:30:13 +0000 (22:30 -0500)]
Reland "[gn build] (manually) port
36892727e4f1"
This reverts commit
da01fb7471a027c29db1b78e1721cd1ae6df6572.
Matches
84f137a590e7.
Also adds LLVM_INSTALL_TOOLCHAIN_ONLY, which
84f137a590e7 added too.
Kevin Athey [Wed, 2 Feb 2022 01:19:39 +0000 (17:19 -0800)]
Revert "[DebugInfo][InstrRef] Add a max-stack-slots-to-track cut-out"
This reverts commit
3fab2d138e30c65249e1eaea6cc68b2b7f50955a.
Breaking PPC sanitizer build:
https://lab.llvm.org/buildbot/#/builders/105/builds/20857
Tanya Lattner [Wed, 2 Feb 2022 02:30:46 +0000 (18:30 -0800)]
Add new status of the move to Discourse.
Nemanja Ivanovic [Wed, 2 Feb 2022 02:13:09 +0000 (20:13 -0600)]
[ARM] Fix build break after
762f0b546328
The commit adds a unit test that uses the facilities of libLLVMCore
without adding it to link components. This causes failures with
the shared libraries builds.
This patch just adds the missing library to the link step.
Tanya Lattner [Wed, 2 Feb 2022 02:09:31 +0000 (18:09 -0800)]
Update discourse migration status.
Jacob Lambert [Thu, 20 Jan 2022 18:25:10 +0000 (10:25 -0800)]
[AMDGPU][NFC] Fixing formatting
Differential Revision: https://reviews.llvm.org/D117801
Peter Klausler [Thu, 27 Jan 2022 17:55:37 +0000 (09:55 -0800)]
[flang] Fix argument keyword names in some specific intrinsics
Some entries in the specific intrinsic function table have the
wrong argument keyword names -- they should agree with the names
of the arguments on their corresponding generic intrinsic function.
Clean them up.
Differential Revision: https://reviews.llvm.org/D118721
Konstantin Varlamov [Wed, 2 Feb 2022 00:50:33 +0000 (16:50 -0800)]
[libc++][ranges][NFC] Fix an inconsistent patch link on the Ranges status page.
Hongtao Yu [Tue, 1 Feb 2022 04:24:45 +0000 (20:24 -0800)]
[llvm-profgen] Clean up unnecessary memory reservations between phases.
Cleaning up data structures that are not used after a certain point. This further brings down peak memory usage by 15% for a large benchmark.
Before:
note: Before parsePerfTraces
note: VM: 40.73 GB RSS: 39.18 GB
note: Before parseAndAggregateTrace
note: VM: 40.73 GB RSS: 39.18 GB
note: After parseAndAggregateTrace
note: VM: 88.93 GB RSS: 87.97 GB
note: Before generateUnsymbolizedProfile
note: VM: 88.95 GB RSS: 87.99 GB
note: After generateUnsymbolizedProfile
note: VM: 93.50 GB RSS: 92.53 GB
note: After computeSizeForProfiledFunctions
note: VM: 101.13 GB RSS: 99.36 GB
note: After generateProbeBasedProfile
note: VM: 215.61 GB RSS: 210.88 GB
note: After postProcessProfiles
note: VM: 237.48 GB RSS: 212.50 GB
After:
note: Before parsePerfTraces
note: VM: 40.73 GB RSS: 39.18 GB
note: Before parseAndAggregateTrace
note: VM: 40.73 GB RSS: 39.18 GB
note: After parseAndAggregateTrace
note: VM: 88.93 GB RSS: 87.96 GB
note: Before generateUnsymbolizedProfile
note: VM: 88.95 GB RSS: 87.97 GB
note: After generateUnsymbolizedProfile
note: VM: 93.50 GB RSS: 92.51 GB
note: After computeSizeForProfiledFunctions
note: VM: 93.50 GB RSS: 92.53 GB
note: After generateProbeBasedProfile
note: VM: 164.87 GB RSS: 163.55 GB
note: After postProcessProfiles
note: VM: 182.28 GB RSS: 179.43 GB
Reviewed By: wenlei, wlei
Differential Revision: https://reviews.llvm.org/D118677
Peter Klausler [Thu, 27 Jan 2022 17:53:14 +0000 (09:53 -0800)]
[flang] Fix edge-case I/O regressions
A blank field in an input record that exists must be interpreted
as a zero value for numeric input editing, but advancing to a
next record that doesn't exist should leave an input variable
unmodified (and signal END=). On internal output, blank fill
the "current record" array element even if nothing has been
written to it if it is the only record.
Differential Revision: https://reviews.llvm.org/D118720
David Blaikie [Wed, 2 Feb 2022 00:15:25 +0000 (16:15 -0800)]
Test fixes for prior patch
David Blaikie [Tue, 1 Feb 2022 02:27:39 +0000 (18:27 -0800)]
Revert "DebugInfo: Don't put types in type units if they reference internal linkage types"
This reverts commit
ab4756338c5b2216d52d9152b2f7e65f233c4dac.
Breaks some cases, including this:
namespace {
template <typename> struct a {};
} // namespace
class c {
c();
};
class b {
b();
a<c> ax;
};
b::b() {}
c::c() {}
By producing a reference to a type unit for "c" but not producing the type unit.
Kirill Stoimenov [Tue, 1 Feb 2022 20:39:29 +0000 (20:39 +0000)]
Revert "[ASan] Not linking asan_static library for DSO."
This reverts commit
cf730d8ce1341ba593144df2e2bc8411238e04c3. It turned out that D118184 is causing segfaults in some situations.
Reviewed By: vitalybuka, kda
Differential Revision: https://reviews.llvm.org/D118739
Bixia Zheng [Fri, 28 Jan 2022 18:56:50 +0000 (10:56 -0800)]
[mlir][taco] Add a utility to create an MLIR sparse tensor from a file.
Move the functions that retrieve the supporting C library, compile an MLIR
module and build a JIT execution engine to mlir_pytaco_utils.
Add a function to create an MLIR sparse tensor from a file and return a pointer
to the MLIR sparse tensor as well as the shape of the sparse tensor.
Add unit tests.
Reviewed By: aartbik
Differential Revision: https://reviews.llvm.org/D118496
Fangrui Song [Tue, 1 Feb 2022 23:11:16 +0000 (15:11 -0800)]
[Driver][test] Fix fatal-warnings.c CHECK lines and fold the test into as-warnings.c
Hongtao Yu [Tue, 1 Feb 2022 22:44:37 +0000 (14:44 -0800)]
Revert "[llvm-profgen] Clean up unnecessary memory reservations between phases."
This reverts commit
057e784b0962a7c5a17e858932bb6f03c7676c47.
Konstantin Varlamov [Tue, 1 Feb 2022 22:39:53 +0000 (14:39 -0800)]
[libc++][ranges][NFC] In the Ranges status, list the changes to stream.iterators
Sander de Smalen [Tue, 1 Feb 2022 17:27:01 +0000 (17:27 +0000)]
[LV] Allow a scalable VF for the epilogue.
For some reason we limited the epilogue VF to be fixed-width, but there
is not necessarily a reason for doing so. If the main VF=vscale x 16, the
epilogue VF could be either fixed-width, or a scalable VF upto vscale x 8.
Reviewed By: david-arm
Differential Revision: https://reviews.llvm.org/D118688
Jameson Nash [Tue, 1 Feb 2022 17:05:20 +0000 (12:05 -0500)]
Reland "enable plugins for clang-tidy"
This reverts commit
ab3b89855c5318f0009e1f016ffe5b1483507fd0 but
disables the new test if the user has disabled support for building it.
Konstantin Varlamov [Tue, 1 Feb 2022 22:34:40 +0000 (14:34 -0800)]
[libc++][ranges][NFC] In the Ranges status, list the changes to predef.iterators
Anna Thomas [Tue, 1 Feb 2022 21:46:02 +0000 (16:46 -0500)]
[LoopFuse] Add assertion for non-null DT in fusion candidate
The code paths analyzed (all constructor invocations of fusion
candidate) pass in a non-null DT.
Adding this assert as requested in D118472 before converting this to a
reference argument.
Anna Thomas [Tue, 1 Feb 2022 21:29:22 +0000 (16:29 -0500)]
[LoopPeel] Use reference instead of pointer for DT argument
Cleanup code in peelLoop API. We already have usage of DT without guarding
against a null DT, so this change constant folds the remaining null DT
checks.
Also make the argument a reference so that it is clear the argument is
a nonnull DT.
Extracted from D118472.
Nikolas Klauser [Tue, 1 Feb 2022 21:38:27 +0000 (22:38 +0100)]
[libc++] Make _VSTD and alias for std
There is no practical difference between `_VSTD` and `std` so we should just remove `_VSTD`. This is the first step.
Reviewed By: ldionne, #libc
Spies: jeroen.dobbelaere, wmaxey, EricWF, lebedev.ri, __simt__, dim, mgrang, sstefan1, wenlei, smeenai, libcxx-commits, #libc_vendors
Differential Revision: https://reviews.llvm.org/D117811
Aaron Ballman [Tue, 1 Feb 2022 21:37:07 +0000 (16:37 -0500)]
Add ClangLinkerWrapper to the TOC to appease the Sphinx build bot
Rainer Orth [Tue, 1 Feb 2022 21:33:56 +0000 (22:33 +0100)]
[sanitizer_common][test] Enable tests on SPARC
Unfortunately, the `sanitizer_common` tests are disabled on many targets
that are supported by `sanitizer_common`, making it easy to miss issues
with that support. This patch enables SPARC testing.
Beside the enabling proper, the patch fixes (together with D91607
<https://reviews.llvm.org/D91607>) the failures of the `symbolize_pc.cpp`,
`symbolize_pc_demangle.cpp`, and `symbolize_pc_inline.cpp` tests. They
lack calls to `__builtin_extract_return_addr`. When those are added, they
`PASS` when compiled with `gcc`. `clang` incorrectly doesn't implement a
non-default `__builtin_extract_return_addr` on several targets, SPARC
included.
Because `__builtin_extract_return_addr(__builtin_return_addr(0))` is quite
a mouthful and I'm uncertain if the code needs to compile with msvc which
appparently has it's own `_ReturnAddress`, I've introduced
`__sanitizer_return_addr` to hide the difference and complexity. Because
on 32-bit SPARC `__builtin_extract_return_addr` differs when the calling
function returns a struct, I've added a testcase for that.
There are a couple more tests failing on SPARC that I will deal with
separately.
Tested on `sparcv9-sun-solaris2.11`, `amd64-pc-solaris2.11`, and
`x86_64-pc-linux-gnu`.
Differential Revision: https://reviews.llvm.org/D91608
Mark de Wever [Tue, 1 Feb 2022 21:32:49 +0000 (16:32 -0500)]
[libc++] Remove unneeded qualifier.
In D117811 @Quuxplusone pointed out the friend declarations don't need
to be qualified. Removing the qualification should avoid needing to add
a GCC work-around when changing _VSTD to std.
Reviewed By: Quuxplusone, philnik, #libc, ldionne
Differential Revision: https://reviews.llvm.org/D118719
Fangrui Song [Tue, 1 Feb 2022 21:24:39 +0000 (13:24 -0800)]
[hwasan][test] Remove obsoleted/removed -fno-experimental-new-pass-manager
Florian Hahn [Tue, 1 Feb 2022 21:02:41 +0000 (21:02 +0000)]
[GVN] Add additional tests after
216d1a729.
Further extend test coverage added in
216d1a729
Hongtao Yu [Tue, 1 Feb 2022 04:24:45 +0000 (20:24 -0800)]
[llvm-profgen] Clean up unnecessary memory reservations between phases.
Cleaning up data structures that are not used after a certain point. This further brings down peak memory usage by 15% for a large benchmark.
Before:
note: Before parsePerfTraces
note: VM: 40.73 GB RSS: 39.18 GB
note: Before parseAndAggregateTrace
note: VM: 40.73 GB RSS: 39.18 GB
note: After parseAndAggregateTrace
note: VM: 88.93 GB RSS: 87.97 GB
note: Before generateUnsymbolizedProfile
note: VM: 88.95 GB RSS: 87.99 GB
note: After generateUnsymbolizedProfile
note: VM: 93.50 GB RSS: 92.53 GB
note: After computeSizeForProfiledFunctions
note: VM: 101.13 GB RSS: 99.36 GB
note: After generateProbeBasedProfile
note: VM: 215.61 GB RSS: 210.88 GB
note: After postProcessProfiles
note: VM: 237.48 GB RSS: 212.50 GB
After:
note: Before parsePerfTraces
note: VM: 40.73 GB RSS: 39.18 GB
note: Before parseAndAggregateTrace
note: VM: 40.73 GB RSS: 39.18 GB
note: After parseAndAggregateTrace
note: VM: 88.93 GB RSS: 87.96 GB
note: Before generateUnsymbolizedProfile
note: VM: 88.95 GB RSS: 87.97 GB
note: After generateUnsymbolizedProfile
note: VM: 93.50 GB RSS: 92.51 GB
note: After computeSizeForProfiledFunctions
note: VM: 93.50 GB RSS: 92.53 GB
note: After generateProbeBasedProfile
note: VM: 164.87 GB RSS: 163.55 GB
note: After postProcessProfiles
note: VM: 182.28 GB RSS: 179.43 GB
Reviewed By: wenlei, wlei
Differential Revision: https://reviews.llvm.org/D118677
Sanjay Patel [Tue, 1 Feb 2022 20:28:21 +0000 (15:28 -0500)]
[x86] add tests for fmul/fdiv with identity constant in select arm; NFC
Sanjay Patel [Tue, 1 Feb 2022 16:20:27 +0000 (11:20 -0500)]
[x86] add more tests for select with identity constant; NFC
D118644
Daniel Resnick [Thu, 27 Jan 2022 00:13:24 +0000 (17:13 -0700)]
[mlir][capi] Add DialectRegistry to MLIR C-API
Exposes mlir::DialectRegistry to the C API as MlirDialectRegistry along with
helper functions. A hook has been added to MlirDialectHandle that inserts
the dialect into a registry.
A future possible change is removing mlirDialectHandleRegisterDialect in
favor of using mlirDialectHandleInsertDialect, which it is now implemented with.
Differential Revision: https://reviews.llvm.org/D118293
Stanislav Mekhanoshin [Mon, 31 Jan 2022 23:10:08 +0000 (15:10 -0800)]
[AMDGPU] Check atomics aliasing in the clobbering annotation
MemorySSA considers any atomic a def to any operation it dominates
just like a barrier or fence. That is correct from memory state
perspective, but not required for the no-clobber metadata since
we are not using it for reordering. Skip such atomics during the
scan just like a barrier if it does not alias with the load.
Differential Revision: https://reviews.llvm.org/D118661
Louis Dionne [Wed, 26 Jan 2022 16:07:49 +0000 (11:07 -0500)]
[libc++] Fix TOCTOU issue with std::filesystem::remove_all
https://bugs.chromium.org/p/llvm/issues/detail?id=19
rdar://
87912416
Differential Revision: https://reviews.llvm.org/D118134
Louis Dionne [Mon, 24 Jan 2022 20:49:56 +0000 (15:49 -0500)]
[libc++][ci] Re-enable the bootstrapping build
Differential Revision: https://reviews.llvm.org/D118067
Florian Hahn [Tue, 1 Feb 2022 20:24:19 +0000 (20:24 +0000)]
[GVN] Add tests for D118143 not requiring loops.
David Green [Tue, 1 Feb 2022 20:18:40 +0000 (20:18 +0000)]
Revert "[DAG] Extend SearchForAndLoads with any_extend handling"
This reverts commit
100763a88fe97b22cd5e3f69d203669aac3ed48f as it was
making incorrect assumptions about implicit zero_extends.
Arthur O'Dwyer [Tue, 18 Jan 2022 12:25:17 +0000 (07:25 -0500)]
[clang] Don't typo-fix an expression in a SFINAE context.
If this is a SFINAE context, then continuing to look up names
(in particular, to treat a non-function as a function, and then
do ADL) might too-eagerly complete a type that it's not safe to
complete right now. We should just say "okay, that's a substitution
failure" and not do any more work than absolutely required.
Fixes #52970.
Differential Revision: https://reviews.llvm.org/D117603
Arthur O'Dwyer [Fri, 28 Jan 2022 20:51:19 +0000 (15:51 -0500)]
[clang] Correctly(?) handle placeholder types in ExprRequirements.
Bug #52905 was originally papered over in a different way, but
I believe this is the actually proper fix, or at least closer to
it. We need to detect placeholder types as close to the front-end
as possible, and cause them to fail constraints, rather than letting
them persist into later stages.
Fixes #52905.
Fixes #52909.
Fixes #53075.
Differential Revision: https://reviews.llvm.org/D118552
Arthur O'Dwyer [Sat, 22 Jan 2022 19:33:12 +0000 (14:33 -0500)]
[libc++] Fix LWG3589 "The const lvalue reference overload of get for subrange..."
https://cplusplus.github.io/LWG/issue3589
Differential Revision: https://reviews.llvm.org/D117961
Florian Mayer [Mon, 31 Jan 2022 21:10:41 +0000 (13:10 -0800)]
[hwasan] work around lifetime issue with setjmp.
setjmp can return twice, but PostDominatorTree is unaware of this. as
such, it overestimates postdominance, leaving some cases (see attached
compiler-rt) where memory does not get untagged on return. this causes
false positives later in the program execution.
this is a crude workaround to unblock use-after-scope for now, in the
longer term PostDominatorTree should bemade aware of returns_twice
function, as this may cause problems elsewhere.
Reviewed By: eugenis
Differential Revision: https://reviews.llvm.org/D118647
Valentin Clement [Tue, 1 Feb 2022 19:53:00 +0000 (20:53 +0100)]
[flang] Lower basic STOP statement
This patch lowers STOP statement without arguments
and ERROR STOP. STOP statement with arguments lowering will
come in later patches ince it requires some expression lowering
to be added.
STOP statement is lowered to a runtime call.
Also makes sure we are creating a constant in the MLIR arith constant.
This patch is part of the upstreaming effort from fir-dev branch.
Reviewed By: kiranchandramohan, schweitz
Differential Revision: https://reviews.llvm.org/D118697
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Peter Klausler [Tue, 1 Feb 2022 19:51:19 +0000 (11:51 -0800)]
[flang] Fix/work around warnings from GCC 11
Apply part of a pending patch for GCC 11 warnings, and
rework a piece of code, to dodge warnings on flag from
GCC 11 build bots exposed by a recent patch.
Applying without review to get bots working again; changes
also tested against GCC 9.3.0.
Stanislav Mekhanoshin [Fri, 28 Jan 2022 00:27:43 +0000 (16:27 -0800)]
[AMDGPU] Allow scalar loads after barrier
Currently we cannot convert a vector load into scalar if there
is dominating barrier or fence. It is considered a clobbering
memory access to prevent memory operations reordering. While
reordering is not possible the actual memory is not being clobbered
by a barrier or fence and we can still use a scalar load for a
uniform pointer.
The solution is not to bail on a first clobbering access but
traverse MemorySSA to the root excluding barriers and fences.
Differential Revision: https://reviews.llvm.org/D118419