Reshabh Sharma [Mon, 3 May 2021 03:31:15 +0000 (09:01 +0530)]
[ASAN][AMDGPU] Add support for accesses to global and constant addrspaces
Add address sanitizer instrumentation support for accesses to global
and constant address spaces in AMDGPU. It strictly avoids instrumenting
the stack and assumes x86 as the host.
Reviewed by: vitalybuka
Differential Revision: https://reviews.llvm.org/D99071
Konstantin Zhuravlyov [Fri, 30 Apr 2021 19:20:28 +0000 (15:20 -0400)]
Reland "AMDGPU/llvm-readobj: Add missing tests for note parsing/displaying"
This reverts commit
54aad6365951247e9f18c718c14422745b3afa4c.
Includes fix for note-amd-valid-v3.s test.
Sergio Perez Gonzalez [Mon, 3 May 2021 02:25:39 +0000 (19:25 -0700)]
[Object] Fix e_machine description for EM_CR16 and add EM_MICROBLAZE
Reviewed By: MaskRay
Differential Revision: https://reviews.llvm.org/D101133
David Green [Sun, 2 May 2021 23:04:21 +0000 (00:04 +0100)]
[ARM] Transfer memory operands for VLDn
We create MMO's for the VLDn/VSTn intrinsics in ARMTargetLowering::
getTgtMemIntrinsic, but they do not currently make it ll the way through
ISel. This changes that in the various places it needs changing, making
sure that the MMO is propagate through to the final instruction. This
can help in scheduling, not treating the VLD2/VST2 as a scheduling
barrier.
Differential Revision: https://reviews.llvm.org/D101096
Stelios Ioannou [Fri, 30 Apr 2021 16:55:35 +0000 (17:55 +0100)]
[AArch64] Sets the preferred function alignment for Cortex-A53/A55.
Setting the preffered function alignment to 16 for Cortex A53/A55
improves performance in a wide range of benchmarks. This brings it
in line with the Cortex-A53/A55 tuning that is used in GCC
(gcc/config/aarch64/aarch64.c).
Differential Revision: https://reviews.llvm.org/D101636
Change-Id: I2ce47fe7ab5e3b54f49c89038d8da4e404742de2
Craig Topper [Sun, 2 May 2021 19:33:44 +0000 (12:33 -0700)]
[TableGen] Use sign rotated VBR for OPC_EmitInteger.
This allows for a much more efficient encoding for small negative
numbers by storing the sign bit first and negating the rest of
the bits. This was already being used for OPC_CheckInteger.
For every in tree target this affects, the table got smaller.
R600GenDAGISel.inc saw the largest reduction of 7K.
I did have to add a new opcode for StringIntegers used for
register class ids and subregister indices since we don't have the
integer value to encode. The enum name is emitted directly into
the table. Previously assumed the enum would expand to a positive
7-bit number. We might be able to just shift that right by 1 and
assume it is a positive 6 bit number, but that will need more
investigation.
Craig Topper [Sun, 2 May 2021 19:01:18 +0000 (12:01 -0700)]
[RISCV] Store SEW in RISCV vector pseudo instructions in log2 form.
This shrinks the immediate that isel table needs to emit for these
instructions. Hoping this allows me to change OPC_EmitInteger to
use a better variable length encoding for representing negative
numbers. Similar to what was done a few months ago for OPC_CheckInteger.
The alternative encoding uses less bytes for negative numbers, but
increases the number of bytes need to encode 64 which was a very
common number in the RISCV table due to SEW=64. By using Log2 this
becomes 6 and is no longer a problem.
Martin Storsjö [Sun, 2 May 2021 18:50:25 +0000 (21:50 +0300)]
[OpenMP] Fix warnings due to redundant semicolons. NFC.
Arthur Eubanks [Sun, 2 May 2021 04:44:32 +0000 (21:44 -0700)]
[NFC] Use Aliasee to determine Type and AddrSpace in GlobalAlias::create()
As opposed to going through the Aliasee type.
For opaque pointers, we're trying to remove uses of PointerType::getElementType().
Reviewed By: dblaikie
Differential Revision: https://reviews.llvm.org/D101715
Florian Hahn [Sun, 2 May 2021 17:56:42 +0000 (18:56 +0100)]
[VPlan] Add VPBasicBlock::phis() helper (NFC).
This patch introduces a helper to obtain an iterator range for the
PHI-like recipes in a block.
Reviewed By: Ayal
Differential Revision: https://reviews.llvm.org/D100101
Craig Topper [Sat, 1 May 2021 20:18:21 +0000 (13:18 -0700)]
[RISCV] Reorder masked builtin operands. Use clang_builtin_alias for all overloaded vector builtins.
This patch makes the builtin operand order match the C operand order
for all intrinsics. With this we can use clang_builtin_alias for
all overloaded intrinsics.
This should further reduce the test time for vector intrinsics.
Differential Revision: https://reviews.llvm.org/D101700
Christopher Di Bella [Sun, 2 May 2021 17:43:05 +0000 (17:43 +0000)]
[libcxx][nfc] removes duplicate test file
`test/std/ranges/range.access/range.access.cbegin/incomplete.compile.verify.cpp`
was accidentally copied (and apparently the author either forgot to
delete it or forgot to commit the deletion).
TEST=`ninja cxx && ninja check-cxx` locally
Nikita Popov [Sun, 2 May 2021 16:12:59 +0000 (18:12 +0200)]
[SCEV] Add test for non-unit stride with multiple exits (NFC)
We currently can't determine any exit counts here, because there
is no "controlling exit".
William S. Moses [Sun, 2 May 2021 04:39:45 +0000 (00:39 -0400)]
[MLIR] Canonicalization of Integer Cast Operations
1) Canonicalize IndexCast(SExt(x)) => IndexCast(x)
2) Provide constant folds of sign_extend and truncate
Differential Revision: https://reviews.llvm.org/D101714
Mark de Wever [Sun, 2 May 2021 11:13:07 +0000 (13:13 +0200)]
[libc++][doc] Update the Format library status.
- Use the proper review for 'Fix integral conformance'.
- Mark 'Fix integral conformance' as completed.
- Move some tasks to in progress.
Juneyoung Lee [Tue, 27 Apr 2021 16:13:07 +0000 (01:13 +0900)]
[InstCombine] Add a few more patterns for folding select of select
This is a patch that folds select of select to salvage some optimizations after select -> and/or folding is disabled.
```
select (select a, true, b), c, false -> select a, c, false
select c, (select a, true, b), false -> select c, a, false
if c implies that b is false (isImpliedCondition).
```
https://alive2.llvm.org/ce/z/ANatjt, https://alive2.llvm.org/ce/z/rv8zTB
```
sel (sel c, a, false), true, (sel !c, b, false) -> sel c, a, b
sel (sel !c, a, false), true, (sel c, b, false) -> sel c, b, a
```
https://alive2.llvm.org/ce/z/U2kp-t, https://alive2.llvm.org/ce/z/bc88EE
See D101191
Reviewed By: nikic
Differential Revision: https://reviews.llvm.org/D101375
Juneyoung Lee [Tue, 27 Apr 2021 16:10:12 +0000 (01:10 +0900)]
[InstCombine] Precommit tests for D101375 (NFC)
William S. Moses [Sun, 2 May 2021 04:58:06 +0000 (00:58 -0400)]
[MLIR] Handle llvm.icmp of pointers
Differential Revision: https://reviews.llvm.org/D101712
Christopher Di Bella [Sat, 24 Apr 2021 21:31:23 +0000 (21:31 +0000)]
[libcxx][nfc] prefixes test type `input_iterator` with `cpp17_`
C++20 revised the definition of what it means to be an iterator. While
all _Cpp17InputIterators_ satisfy `std::input_iterator`, the reverse
isn't true. D100271 introduces a new test adaptor to accommodate this
new definition (`cpp20_input_iterator`).
In order to help readers immediately distinguish which input iterator
adaptor is _Cpp17InputIterator_, the current `input_iterator` adaptor
has been prefixed with `cpp17_`.
Differential Revision: https://reviews.llvm.org/D101242
Juneyoung Lee [Sun, 2 May 2021 04:44:43 +0000 (13:44 +0900)]
Fix MSan crash after
1977c53b
Arthur Eubanks [Sun, 2 May 2021 04:01:06 +0000 (21:01 -0700)]
[NFC] Use getParamByValType instead of pointee type
To reduce dependence on pointee types for opaque pointers.
Reviewed By: dblaikie
Differential Revision: https://reviews.llvm.org/D101706
Juneyoung Lee [Sun, 2 May 2021 04:10:20 +0000 (13:10 +0900)]
run update_test_checks.py for the tests in D101191 (NFC)
This is an NFC that reruns update_test_checks.py on the tests that are
going to be updated in D101191.
Juneyoung Lee [Sun, 2 May 2021 04:00:33 +0000 (13:00 +0900)]
[ValueTracking] ctpop propagates poison
This is a patch that adds ctpop intrinsics to propagatesPoison.
Splitted from D101191
eopXD [Sun, 2 May 2021 02:59:12 +0000 (08:29 +0530)]
[mlir] [affine] add canonicalization for affine.vector_load, vector_store
Added canonicalization for vector_load and vector_store. An existing
pattern SimplifyAffineOp can be reused to compose maps that supplies
result into them. Added AffineVectorStoreOp and AffineVectorLoadOp
into static_assert of SimplifyAffineOp to allow operation to use it.
This fixes the bug filed: https://bugs.llvm.org/show_bug.cgi?id=50058
Reviewed By: bondhugula
Differential Revision: https://reviews.llvm.org/D101691
Juneyoung Lee [Sun, 2 May 2021 03:02:02 +0000 (12:02 +0900)]
[ValueTracking] Improve impliesPoison to look into overflow intrinsics
This update supports the following transformation:
```
select(extract(mul_with_overflow(a, _), _), (a == 0), false)
=>
and(extract(mul_with_overflow(a, _), _), (a == 0))
```
which is correct because if `a` was poison the select's condition was
also poison.
This update is splitted from D101423.
LLVM GN Syncbot [Sun, 2 May 2021 02:55:47 +0000 (02:55 +0000)]
[gn build] Port
1977c53b2ae4
Juneyoung Lee [Wed, 28 Apr 2021 02:34:45 +0000 (11:34 +0900)]
[InstCombine] Fold overflow bit of [u|s]mul.with.overflow in a poison-safe way
As discussed in D101191, this patch adds a poison-safe folding of overflow bit check:
```
%Op0 = icmp ne i4 %X, 0
%Agg = call { i4, i1 } @llvm.[us]mul.with.overflow.i4(i4 %X, i4 %Y)
%Op1 = extractvalue { i4, i1 } %Agg, 1
%ret = select i1 %Op0, i1 %Op1, i1 false
=>
%Y.fr = freeze %Y
%Agg = call { i4, i1 } @llvm.[us]mul.with.overflow.i4(i4 %X, i4 %Y.fr)
%Op1 = extractvalue { i4, i1 } %Agg, 1
%ret = %Op1
```
https://alive2.llvm.org/ce/z/zgPUGT
https://alive2.llvm.org/ce/z/h2gZ_6
Note that there are cases where inserting freeze is not necessary: e.g. %Y is `noundef`.
In this case, LLVM is already good because `%ret` is already successfully folded into `and`,
triggering the pre-existing optimization in InstSimplify: https://godbolt.org/z/v6qena15K
Differential Revision: https://reviews.llvm.org/D101423
Juneyoung Lee [Wed, 28 Apr 2021 02:25:30 +0000 (11:25 +0900)]
[InstCombine] Precommit tests for D101423 (NFC)
Yaxun (Sam) Liu [Fri, 30 Apr 2021 18:54:03 +0000 (14:54 -0400)]
[HIP] Fix device lib selection
Choose optimized device lib bitcode by fp options
for performance.
Reviewed by: Artem Belevich, Fangrui Song
Differential Revision: https://reviews.llvm.org/D101654
Fangrui Song [Sat, 1 May 2021 23:24:39 +0000 (16:24 -0700)]
[Cuda] Internalize a struct and a global variable
Harald van Dijk [Sat, 1 May 2021 21:17:04 +0000 (22:17 +0100)]
[X32][CET] Fix size and alignment of .note.gnu.property section
X32 uses 32-bit ELF object files with 32-bit alignment, so the
.note.gnu.property section needs to be emitted as it is for X86.
Reviewed By: MaskRay
Differential Revision: https://reviews.llvm.org/D101689
Nikita Popov [Sat, 1 May 2021 20:54:51 +0000 (22:54 +0200)]
[LVI] Handle mask not equal zero conditions
If V & Mask != 0, we know that at least one of the bits in Mask
must be set, so the value must be >= the lowest bit in Mask.
Nikita Popov [Sat, 1 May 2021 21:01:34 +0000 (23:01 +0200)]
[CVP] Add tests for mask not equal zero guard (NFC)
Michał Górny [Thu, 29 Apr 2021 11:55:21 +0000 (13:55 +0200)]
[lldb] [Process/FreeBSD] Fix arm64 build after RegisterInfoPOSIX_arm64 changes
Commit
88a5b35d63f927db69ec953ff487a7ba2504a610 changed the API
of RegisterInfoPOSIX_arm64 and effectively broke the FreeBSD plugin.
Update it to work with the new API.
Differential Revision: https://reviews.llvm.org/D101521
Craig Topper [Sat, 1 May 2021 20:07:28 +0000 (13:07 -0700)]
[RISCV] Add missing frontend tests for vcompress intrinsics.
Chris Lattner [Sat, 1 May 2021 19:39:01 +0000 (12:39 -0700)]
Microoptimize dominance a bit - NFC.
Don't get RegionKindInterface if we won't use it. Noticed by inspection.
Roman Lebedev [Sat, 1 May 2021 19:04:48 +0000 (22:04 +0300)]
[X86] AMD Zen 3 Scheduler Model
Introduce basic schedule model for AMD Zen 3 CPU's, a.k.a `znver3`.
This is fully built from scratch, from llvm-mca measurements
and documented reference materials.
Nothing was copied from `znver2`/`znver1`.
I believe this is in a reasonable state of completion for inclusion,
probably better than D52779 `bdver2` was :)
Namely:
* uops are pretty spot-on (at least what llvm-mca can measure)
{
F16422596}
* latency is also pretty spot-on (at least what llvm-mca can measure)
{
F16422601}
* throughput is within reason
{
F16422607}
I haven't run much benchmarks with this,
however RawSpeed benchmarks says this is beneficial:
{
F16603978}
{
F16604029}
I'll call out the obvious problems there:
* i didn't really bother with X87 instructions
* i didn't really bother with obviously-microcoded/system instructions
* There are large discrepancy in throughput for `mr` and `rm` instructions.
I'm not really sure if it's a modelling defect that needs to be fixed,
or it's a defect of measurments.
* Pipe distributions are probably bad :)
I can't do much here until AMD allows that to be fixed
by documenting the appropriate counters and updating libpfm
That being said, as @RKSimon notes:
>>! In D94395#2647381, @RKSimon wrote:
> I'll mention again that all the znver* models appear to be very inaccurate wrt SIMD/FPU instructions <...>
so how much worse this could possibly be?!
Things that aren't there:
* Various tunings: zero idioms, etc. That is follow-ups.
Differential Revision: https://reviews.llvm.org/D94395
Pratyush Das [Sat, 1 May 2021 18:47:27 +0000 (18:47 +0000)]
Fix type printing of array template args
The code example:
```
constexpr const char kEta[] = "Eta";
template <const char*, typename T> class Column {};
using quick = Column<kEta,double>;
void lookup() {
quick c1;
c1.ls();
}
```
emits error: no member named 'ls' in 'Column<&kEta, double>'. The patch fixes
the printed type name by not printing the ampersand for array types.
Differential Revision: https://reviews.llvm.org/D36368
Chris Lattner [Sat, 1 May 2021 18:42:28 +0000 (11:42 -0700)]
[Verifier] Slightly refactor code to reduce duplication, NFC.
Nikita Popov [Sat, 1 May 2021 15:40:26 +0000 (17:40 +0200)]
[SCEV] Simplify backedge count clearing (NFC)
This seems to be a leftover from when the BackedgeTakenInfo
stored multiple exit counts with manual memory management. At
some point this was switchted to a simple vector, and there should
be no need to micro-manage the clearing anymore. We can simply
drop the loop from the map and the the destructor do its job.
Nikita Popov [Sat, 1 May 2021 15:21:20 +0000 (17:21 +0200)]
[IndVars] Remove redundant loop invariance check (NFC)
This is checked again directly below this condition.
LemonBoy [Sat, 1 May 2021 15:13:50 +0000 (17:13 +0200)]
[AArch64] Prevent spilling between ldxr/stxr pairs
Apply the same logic used to check if CMPXCHG nodes should be expanded
at -O0: the register allocator may end up spilling some register in
between the atomic load/store pairs, breaking the atomicity and possibly
stalling the execution.
Fixes PR48017
Reviewed By: efriedman
Differential Revision: https://reviews.llvm.org/D101163
Nikita Popov [Sat, 1 May 2021 14:45:28 +0000 (16:45 +0200)]
[SCEV] Add tests for and/or loop guards (NFC)
LemonBoy [Sat, 1 May 2021 14:29:03 +0000 (16:29 +0200)]
[NFC][ARM] Regenerate arm64-atomic.ll test
Pre-requisite for D101163, the `NOLSE-0O` case shows registers being
spilled inside the rmw loop.
Use two separate prefixes for the `LSE-O0` case as some outputs differ
only by a comment that update_llc_test_checks.py ignores but lit does
not, causing the test to fail unexpectedly when run.
Arthur O'Dwyer [Sat, 1 May 2021 14:11:46 +0000 (10:11 -0400)]
[libc++] [test] Don't nasty-macro `__opt` yet; we actually use that one.
This reverts another of the macros just added in D101613, because it turns out
that the <optional> and <filesystem> headers use the identifier __opt.
Arthur O'Dwyer [Sat, 1 May 2021 13:09:06 +0000 (09:09 -0400)]
[libc++] [test] Don't nasty-macro `__z` yet; we actually use that one.
This reverts one of the macros just added in D101613, because it turns out
that the <utility> header actually uses the identifiers __x, __y, __z.
We probably *shouldn't* use __z if it's reserved on Windows; but since
it's not causing us any active problem even on Windows, I think this is
the safest way to unbreak the test.
Yaxun (Sam) Liu [Sun, 29 Mar 2020 14:32:03 +0000 (10:32 -0400)]
[AMDGPU] Add options -mamdgpu-ieee -mno-amdgpu-ieee
AMDGPU backend need to know whether floating point opcodes that support exception
flag gathering quiet and propagate signaling NaN inputs per IEEE754-2008, which is
conveyed by a function attribute "amdgpu-ieee". "amdgpu-ieee"="false" turns this off.
Without this function attribute backend assumes it is on for compute functions.
-mamdgpu-ieee and -mno-amdgpu-ieee are added to Clang to control this function attribute.
By default it is on. -mno-amdgpu-ieee requires -fno-honor-nans or equivalent.
Reviewed by: Matt Arsenault
Differential Revision: https://reviews.llvm.org/D77013
LemonBoy [Sat, 1 May 2021 11:00:45 +0000 (13:00 +0200)]
Revert "[NFC][ARM] Regenerate arm64-atomic.ll test"
This reverts commit
d9856b12f2be257f1b7aaccde71eb0421a1aaaf3.
LemonBoy [Sat, 1 May 2021 10:09:14 +0000 (12:09 +0200)]
[NFC][ARM] Regenerate arm64-atomic.ll test
Pre-requisite for D101163, the NOLSE-0O case shows registers being
spilled inside the rmw loop.
Nikita Popov [Sat, 1 May 2021 09:47:07 +0000 (11:47 +0200)]
[InstCombine] Add eq-of-parts tests using or (NFC)
or-ne is the conjugated pattern for and-eq.
Vitaly Buka [Sat, 1 May 2021 08:55:21 +0000 (01:55 -0700)]
[scudo][NFC] Fix clang-tidy warnings
Vitaly Buka [Thu, 29 Apr 2021 08:19:51 +0000 (01:19 -0700)]
[scudo] Use require_constant_initialization
Attribute guaranties safe static initialization of globals.
Reviewed By: hctim
Differential Revision: https://reviews.llvm.org/D101514
Martin Storsjö [Fri, 30 Apr 2021 10:57:37 +0000 (13:57 +0300)]
[libcxx] Reenable ranges for clang-cl
This reverts
a224bf8ec423b42eea251407e7a6cc8398a5edf4 and fixes the
underlying issue.
The underlying issue is simply that MSVC headers contains a define
like "#define __in", where __in is one macro in the MSVC Source
Code Annotation Language, defined in sal.h
Just use a different variable name than "__in"
__indirectly_readable_impl, and add "__in" to nasty_macros.h just
like the existing __out. (Also adding a couple more potentially
conflicting ones.)
Differential Revision: https://reviews.llvm.org/D101613
Nathan James [Sat, 1 May 2021 07:53:29 +0000 (08:53 +0100)]
[clang-tidy][NFC] Remove redudnant expr and qualType matchers from bugprone-sizeof-expression.
Martin Storsjö [Fri, 26 Feb 2021 14:34:29 +0000 (16:34 +0200)]
[libcxx] [test] Skip alloc counter checks for operations within the libc++ DLL
If libc++ is built as a DLL, calls to operator new within the DLL aren't
overridden if a user provides their own operator in calling code.
Therefore, the alloc counter doesn't pick up on allocations done within
std::string, so skip that check if running on windows. (Technically,
we could keep the checks if running on windows when not built as a DLL,
but trying to keep the conditionals simple.)
Differential Revision: https://reviews.llvm.org/D100219
Nathan Chancellor [Sat, 1 May 2021 03:23:21 +0000 (20:23 -0700)]
Revert "Re-reapply "[DebugInfo] Use variadic debug values to salvage BinOps and GEP instrs with non-const operands""
This reverts commit
791930d74087b8ae8901172861a0fd21a211e436, as per
https://llvm.org/docs/DeveloperPolicy.html#patch-reversion-policy.
I observed breakage with the Linux kernel, as reported at
https://reviews.llvm.org/D91722#2724321
Fixes exist at
https://reviews.llvm.org/D101523
https://reviews.llvm.org/D101540
but they have not landed so to unbreak the tree for the weekend, revert
this commit.
Commit
b11e4c990771 ("Revert "[DebugInfo] Drop DBG_VALUE_LISTs with an
excessive number of debug operands"") only reverted one follow-up fix,
not the original patch that broke the kernel.
e
Arthur O'Dwyer [Wed, 21 Apr 2021 02:08:00 +0000 (22:08 -0400)]
[libc++] [LIBCXX-DEBUG-FIXME] <span>, like <string_view>, has no use for debug iterators.
A span has no idea what container (if any) "owns" its iterators, nor
under what circumstances they might become invalidated.
However, continue to use `__wrap_iter<T*>` instead of raw `T*` outside
of debug mode, because we've been shipping `std::span` since Clang 7
and ldionne doesn't want to break ABI. (Namely, the mangling of functions
taking `span::iterator` as a parameter.) Permit using raw `T*` there,
but only under an ABI macro: `_LIBCPP_ABI_SPAN_POINTER_ITERATORS`.
Differential Revision: https://reviews.llvm.org/D101003
Aart Bik [Sat, 1 May 2021 01:07:28 +0000 (18:07 -0700)]
[mlir][sparse] sparse tensor type encoding migration (new home, new builders)
(1) migrates the encoding from TensorDialect into the new SparseTensorDialect
(2) replaces dictionary-based storage and builders with struct-like data
Reviewed By: mehdi_amini
Differential Revision: https://reviews.llvm.org/D101669
Alex Lorenz [Sat, 1 May 2021 01:50:07 +0000 (18:50 -0700)]
[clang][driver][darwin] use the deployment target version as the SDK version
when passing -platform_version to the linker
The use of a valid SDK version is preferred over an empty SDK version
(0.0.0) as the system's runtime might expect the linked binary to contain
a valid SDK version in order for the binary to work correctly
rdar://
66795188
Nemanja Ivanovic [Sat, 1 May 2021 01:29:03 +0000 (20:29 -0500)]
[PowerPC] Add floating point overloads for vec_sldw
These are added for compatibility with XLC.
Nemanja Ivanovic [Sat, 1 May 2021 00:34:56 +0000 (19:34 -0500)]
[PowerPC] Add missing requirement to test case
Commit
70c433a184a54819835e54c62c3e6891e7069861 added this
test case that has -stop-before that mentions a pass that is
only added for non-release builds. Add the requirement for asserts.
Kevin Athey [Thu, 29 Apr 2021 16:58:19 +0000 (09:58 -0700)]
Correct tiny misspelling (readlef -> readelf).
Getting my feet wet here as a new committer.
Correct misspelling in check-depends.pl.
Reviewed By: vitalybuka
Differential Revision: https://reviews.llvm.org/D101552
Fangrui Song [Sat, 1 May 2021 00:19:45 +0000 (17:19 -0700)]
[ELF] Simplify the condition adding .got header
Adopt my suggestion in https://reviews.llvm.org/D91426#2653926 ,
generalizing the ppc64 specific code.
GNU ld and glibc ld.so has a contract about the first few entries of .got .
There are somewhat complex conditions when the header is needed. This patch
switches to a simpler approach: add a header unconditionally if
_GLOBAL_OFFSET_TABLE_ is used or the number of entries is more than just the
header.
Nemanja Ivanovic [Fri, 30 Apr 2021 23:54:44 +0000 (18:54 -0500)]
[PowerPC] Provide fastmath sqrt and div functions in altivec.h
This adds the long overdue implementations of these functions
that have been part of the ABI document and are now part of
the "Power Vector Intrinsic Programming Reference" (PVIPR).
The approach is to add new builtins and to emit code with
the fast flag regardless of whether fastmath was specified
on the command line.
Differential revision: https://reviews.llvm.org/D101209
LLVM GN Syncbot [Sat, 1 May 2021 00:09:37 +0000 (00:09 +0000)]
[gn build] Port
02c5ba867987
Arthur O'Dwyer [Sat, 1 May 2021 00:07:00 +0000 (20:07 -0400)]
[libc++] s/begin.h/access.h/ in comments. NFCI.
Adrian Prantl [Fri, 30 Apr 2021 23:28:44 +0000 (16:28 -0700)]
Revert "[VP,Integer,#2] ExpandVectorPredication pass"
This reverts commit
43bc584dc05e24c6d44ece8e07d4bff585adaf6d.
The commit broke the -DLLVM_ENABLE_MODULES=1 builds.
http://green.lab.llvm.org/green/view/LLDB/job/lldb-cmake/31603/consoleFull#
2136199809a1ca8a51-895e-46c6-af87-
ce24fa4cd561
Nick Desaulniers [Fri, 30 Apr 2021 23:35:41 +0000 (16:35 -0700)]
Revert "[DebugInfo] Drop DBG_VALUE_LISTs with an excessive number of debug operands"
This reverts commit
b623df3c93983c4512aa54f2c706716bdf865a90, as per
https://llvm.org/docs/DeveloperPolicy.html#patch-reversion-policy.
Breakages observed downstream reported in:
https://reviews.llvm.org/D91722#2724321
Fixes exist in:
https://reviews.llvm.org/D101523
https://reviews.llvm.org/D101540
but haven't landed yet going into the weekend.
George Balatsouras [Thu, 29 Apr 2021 22:54:52 +0000 (15:54 -0700)]
[dfsan] Fix origin tracking for fast8
The problem is the following. With fast8, we broke an important
invariant when loading shadows. A wide shadow of 64 bits used to
correspond to 4 application bytes with fast16; so, generating a single
load was okay since those 4 application bytes would share a single
origin. Now, using fast8, a wide shadow of 64 bits corresponds to 8
application bytes that should be backed by 2 origins (but we kept
generating just one).
Let’s say our wide shadow is 64-bit and consists of the following:
0xABCDEFGH. To check if we need the second origin value, we could do
the following (on the 64-bit wide shadow) case:
- bitwise shift the wide shadow left by 32 bits (yielding 0xEFGH0000)
- push the result along with the first origin load to the shadow/origin vectors
- load the second 32-bit origin of the 64-bit wide shadow
- push the wide shadow along with the second origin to the shadow/origin vectors.
The combineOrigins would then select the second origin if the wide
shadow is of the form 0xABCDE0000. The tests illustrate how this
change affects the generated bitcode.
Reviewed By: stephan.yichao.zhao
Differential Revision: https://reviews.llvm.org/D101584
Jon Roelofs [Thu, 29 Apr 2021 15:40:41 +0000 (08:40 -0700)]
[EarlyIfConversion] Avoid producing selects with identical operands
This extends the early-ifcvt pass to avoid a few more cases where the resulting
select instructions would have matching operands. Additionally, we now use TII
to determine "sameness" of the operands so that as TII gets smarter, so too
will ifcvt.
The attached test case was bugpoint-reduced down from CINT2000/252.eon in the
test-suite. See: https://clang.godbolt.org/z/WvnrcrGEn
Differential Revision: https://reviews.llvm.org/D101508
Jon Roelofs [Fri, 30 Apr 2021 22:30:34 +0000 (15:30 -0700)]
[PowerPC] modernize test via update_llc_test_checks.py. NFC
Christopher Di Bella [Sun, 11 Apr 2021 19:04:52 +0000 (19:04 +0000)]
[libcxx][iterator][ranges] adds `input_iterator` and `input_range`
Implements parts of:
* P0896R4 The One Ranges Proposal`
Depends on D100269.
Differential Revision: https://reviews.llvm.org/D100271
Dávid Bolvanský [Fri, 30 Apr 2021 22:41:44 +0000 (00:41 +0200)]
[X86] Promote 16-bit CTTZ_ZERO_UNDEF to 32-bit variant
Related to PR50172.
Protects us against regressions after we will start doing cttz(zext(x)) -> zext(cttz(x)) transformation in the middle-end.
Reviewed By: craig.topper
Differential Revision: https://reviews.llvm.org/D101662
Arthur O'Dwyer [Tue, 20 Apr 2021 15:27:03 +0000 (11:27 -0400)]
[libc++] [test] Add a debug-mode CI.
To run llvm-lit manually from the command line:
./bin/llvm-lit -sv --param std=c++2b --param cxx_under_test=`pwd`/bin/clang \
--param debug_level=1 ../libcxx/test/
Tests that currently fail with `debug_level=1` are marked `LIBCXX-DEBUG-FIXME`,
but my intent is to deal with all of them and leave no such annotations in
the codebase within the next couple weeks. (I have patches for all of them
in my local checkout.)
Differential Revision: https://reviews.llvm.org/D100866
Arthur O'Dwyer [Fri, 30 Apr 2021 22:05:31 +0000 (18:05 -0400)]
[libc++] Remove the line of stdout output from this generator. NFCI.
This line was confusing some people: it's not supposed to indicate
any kind of problem with the script, and I can't see any way it could
even help with troubleshooting. So, just silence it.
Jon Roelofs [Fri, 30 Apr 2021 21:53:53 +0000 (14:53 -0700)]
Revert "[EarlyIfConversion] Avoid producing selects with identical operands"
This reverts commit
3d27b5d28aabf8516aa1fefc78a6878b89a992f0.
Broke one of the PPC tests, which I didn't see because I usually build with
only the x86/AARch64 targets enabled... oops.
https://lab.llvm.org/buildbot#builders/109/builds/13834
llvm/test/CodeGen/PowerPC/expand-foldable-isel.ll
Amara Emerson [Fri, 30 Apr 2021 00:04:20 +0000 (17:04 -0700)]
[AArch64][GlobalISel] Use a single MachineIRBuilder for most of isel. NFC.
This is a long overdue cleanup. Not every use is eliminated, I stuck to uses
that were directly being called from select(), and not the render functions.
Differential Revision: https://reviews.llvm.org/D101590
Jon Roelofs [Thu, 29 Apr 2021 15:40:41 +0000 (08:40 -0700)]
[EarlyIfConversion] Avoid producing selects with identical operands
This extends the early-ifcvt pass to avoid a few more cases where the resulting
select instructions would have matching operands. Additionally, we now use TII
to determine "sameness" of the operands so that as TII gets smarter, so too
will ifcvt.
The attached test case was bugpoint-reduced down from CINT2000/252.eon in the
test-suite. See: https://clang.godbolt.org/z/WvnrcrGEn
Differential Revision: https://reviews.llvm.org/D101508
Jez Ng [Fri, 30 Apr 2021 21:39:52 +0000 (17:39 -0400)]
[llvm-readobj] Recognize N_THUMB_DEF as a symbol flag
The right symbol flag mask is ~0x7, not ~0xf.
Also emit string names for the other flags (we were missing some).
Reviewed By: #lld-macho, gkm
Differential Revision: https://reviews.llvm.org/D101548
Gulfem Savrun Yeniceri [Fri, 30 Apr 2021 20:32:56 +0000 (20:32 +0000)]
[NewPM] Disable RelLookupTableConverter pass in LTO
Relative look table converter pass caused an issue when full lto
is enabled (reported in https://reviews.llvm.org/D94355).
This patch disables that pass from full lto pre-link phase optimization
pipeline until the issue is fixed.
Differential Revision: https://reviews.llvm.org/D101664
Jay Foad [Fri, 30 Apr 2021 13:53:47 +0000 (14:53 +0100)]
[AMDGPU] Remove set_gpr_idx instructions in conditional blocks
SIPreEmitPeephole did not try to remove redundant s_set_gpr_idx_*
instructions in blocks that end with a conditional branch instruction.
This seems like a simple oversight.
Differential Revision: https://reviews.llvm.org/D101629
Nikita Popov [Fri, 30 Apr 2021 21:05:41 +0000 (23:05 +0200)]
[ValueTracking] Slightly clean up programUndefinedIfUndefOrPoison() (NFC)
Use contains() to check set membership, and adjust an oddly
structured loop.
Nikita Popov [Fri, 30 Apr 2021 20:38:40 +0000 (22:38 +0200)]
[ValueTracking] Limit scan when checking poison UB (PR50155)
The current code can scan an unlimited number of instructions,
if the containing basic block is very large. The test case from
PR50155 contains a basic block with approximately 100k instructions.
To avoid this, limit the number of instructions we inspect. At
the same time, drop the limit on the number of basic blocks, as
this will be implicitly limited by the number of instructions as
well.
Dmitry Vyukov [Fri, 30 Apr 2021 20:47:43 +0000 (13:47 -0700)]
asan: fix a windows test
Before commit "sanitizer_common: introduce kInvalidTid/kMainTid"
asan invalid/unknown thread id was 0xffffff, so presumably we printed "T16777215".
Now it's -1, so we print T-1. Fix the test.
I think the new format is even better, "T-1" clearly looks like something special
rather than a random large number.
Reviewed By: vitalybuka
Differential Revision: https://reviews.llvm.org/D101634
Justin Bogner [Fri, 30 Apr 2021 20:37:08 +0000 (13:37 -0700)]
Add support for llvm.assume intrinsic to the LoadStoreVectorizer pass
Patch by Viacheslav Nikolaev. Thanks!
Vitaly Buka [Fri, 30 Apr 2021 08:22:02 +0000 (01:22 -0700)]
[tsan] Remove special SyncClock::kInvalidTid
Followup for D101428.
Reviewed By: dvyukov
Differential Revision: https://reviews.llvm.org/D101604
Joel E. Denny [Fri, 30 Apr 2021 17:00:40 +0000 (13:00 -0400)]
[OpenMP] Fix second debug name from map clause
This patch fixes a bug from D89802. For example, without it, Clang
generates x as the debug map name for both x and y in the following
example:
```
#pragma omp target map(to: x, y)
x = y = 1;
```
Reviewed By: jhuber6
Differential Revision: https://reviews.llvm.org/D101564
LLVM GN Syncbot [Fri, 30 Apr 2021 20:17:55 +0000 (20:17 +0000)]
[gn build] Port
2d28100bf2e4
Jez Ng [Fri, 30 Apr 2021 20:17:26 +0000 (16:17 -0400)]
[lld-macho] Parse & emit the N_ARM_THUMB_DEF symbol flag
Eventually we'll use this flag to properly handle bl/blx
opcodes.
Reviewed By: #lld-macho, gkm
Differential Revision: https://reviews.llvm.org/D101558
Jez Ng [Fri, 30 Apr 2021 20:17:25 +0000 (16:17 -0400)]
[lld-macho] Initial scaffolding for ARM32 support
This just parses the `-arch armv7` and emits the right header flags.
The rest will be slowly fleshed out in upcoming diffs.
Reviewed By: #lld-macho, gkm
Differential Revision: https://reviews.llvm.org/D101557
Louis Dionne [Fri, 30 Apr 2021 19:52:26 +0000 (15:52 -0400)]
[libc++] Fix constexpr-ness of std::tuple's constructor
Mentioned in https://reviews.llvm.org/D96523.
Daniil Fukalov [Thu, 29 Apr 2021 13:02:51 +0000 (16:02 +0300)]
[TTI] NFC: Change getTypeLegalizationCost to return InstructionCost.
This patch migrates the TTI cost interfaces to return an InstructionCost.
See this patch for the introduction of the type: https://reviews.llvm.org/D91174
See this thread for context: http://lists.llvm.org/pipermail/llvm-dev/2020-November/146408.html
Reviewed By: sdesmalen, kparzysz
Differential Revision: https://reviews.llvm.org/D101533
Dávid Bolvanský [Fri, 30 Apr 2021 19:26:26 +0000 (21:26 +0200)]
[InstCombine] Added tests for PR50172, NFC
Guozhi Wei [Fri, 30 Apr 2021 19:10:36 +0000 (12:10 -0700)]
[MachineFunction] Make comment for TracksLiveness more clearer
As discussed in https://lists.llvm.org/pipermail/llvm-dev/2021-April/150225.html,
the current comments for TracksLiveness property and isKill flag are confusing.
This patch makes the comments more clearer.
Differential Revision: https://reviews.llvm.org/D101500
Arthur Eubanks [Fri, 30 Apr 2021 18:54:42 +0000 (11:54 -0700)]
[llvm-reduce] Don't unset dso_local on implicitly dso_local GVs
This introduces a flag that aborts if we ever reduce to IR that fails
the verifier.
Reviewed By: swamulism, arichardson
Differential Revision: https://reviews.llvm.org/D101279
Vitaly Buka [Fri, 30 Apr 2021 18:29:13 +0000 (11:29 -0700)]
[NFC][tsan] Fix cast after D101428
Arthur Eubanks [Fri, 30 Apr 2021 18:48:03 +0000 (11:48 -0700)]
[llvm-reduce] Add flag to only run specific passes
Reviewed By: fhahn, hans
Differential Revision: https://reviews.llvm.org/D101278
Arthur O'Dwyer [Fri, 30 Apr 2021 18:43:33 +0000 (14:43 -0400)]
[libc++] [test] Recommit the unsetting of LC_COLLATE in the builder script.
This re-reverts one piece of
1b885573327d0f6b36f24ad23d243642f658750b,
reapplying one piece of D101437 (but not the "service"-queue piece of it).
It turns out that the behavior of `grep [^ -~]`, or even `grep [A-Z]`,
depends on locale, specifically `LC_COLLATE`. So we want to make sure
we're not in any weird locale, no matter what machine we're running on.
Yes, "en_US.UTF-8" counts as weird!
https://stackoverflow.com/questions/
67320156/misbehavior-of-gnu-grep-when-grepping-for-ignores-spaces
https://stackoverflow.com/questions/6799872/how-to-make-grep-a-z-independent-of-locale
Konstantin Zhuravlyov [Fri, 30 Apr 2021 18:45:07 +0000 (14:45 -0400)]
Revert "AMDGPU/llvm-readobj: Add missing tests for note parsing/displaying"
This reverts commit
c9c4676a458b1ef99ffb67b43cfd87d6c27a448c.
Reason for revert: note-amd-valid-v3.s test fails if AMDGPU is not built.
Petr Hosek [Thu, 29 Apr 2021 17:11:39 +0000 (10:11 -0700)]
[libcxx] Use joined format for include flag on Windows
Without this, CMake deduplicates the /I flag breaking the build. See
https://cmake.org/cmake/help/v3.13/command/target_compile_options.html
for more details on why this is needed.
Differential Revision: https://reviews.llvm.org/D101550