Haojian Wu [Thu, 29 Jun 2023 11:57:36 +0000 (13:57 +0200)]
[clangd] Don't show header for namespace decl in Hover
The header for namespace symbol is barely useful.
Differential Revision: https://reviews.llvm.org/D154068
Arnold Schwaighofer [Wed, 28 Jun 2023 20:23:04 +0000 (13:23 -0700)]
WholeProgramDevirt: Fix call target propagation for ptrauth architectures
We can't have a call with a constant target with a ptrauth bundle. Remove the
ptrauth bundle operand in such a case
rdar://
105696396
Differential Revision: https://reviews.llvm.org/D144581
Zahira Ammarguellat [Thu, 29 Jun 2023 14:16:14 +0000 (10:16 -0400)]
Fix test regression on 32-bit x86.
Differential Revision: https://reviews.llvm.org/D153770
Matthias Springer [Thu, 29 Jun 2023 14:32:11 +0000 (16:32 +0200)]
[mlir][Transforms][NFC] CSE: Add non-pass entry point
Add an additional entry point so that CSE can be used without a pass. This allows CSE to be used from the Transform dialect without invalidating all handles.
* All IR modifications are done with a rewriter.
* The C++ entry point takes a `RewriterBase &`, which may have a listener attached to it. This allows users to track all IR modifications.
Differential Revision: https://reviews.llvm.org/D145226
Philip Reames [Thu, 29 Jun 2023 14:24:54 +0000 (07:24 -0700)]
[RISCV] Remove legacy TA/TU pseudo distinction for unary instructions
This change continues with the line of work discussed in https://discourse.llvm.org/t/riscv-transition-in-vector-pseudo-structure-policy-variants/71295. In D153155, we started removing the legacy distinction between unsuffixed (TA) and _TU pseudos. This patch continues that effort for the unary instruction families.
The change consists of a few interacting pieces:
* Adding a vector policy operand to VPseudoUnaryNoMaskTU.
* Then using VPseudoUnaryNoMaskTU for all cases where VPseudoUnaryNoMask was previously used and deleting the unsuffixed form.
* Then renaming VPseudoUnaryNoMaskTU to VPseudoUnaryNoMask, and adjusting the RISCVMaskedPseudo table to use the combined pseudo.
* Fixing up two places in C++ code which manually construct VMV_V_* instructions.
Normally, I'd try to factor this into a couple of changes, but in this case, the table structure is tied to naming and thus we can't really separate the otherwise NFC bits.
As before, we see codegen changes (some improvements and some regressions) due to scheduling differences caused by the extra implicit_def instructions.
Differential Revision: https://reviews.llvm.org/D153899
Simon Pilgrim [Thu, 29 Jun 2023 14:27:28 +0000 (15:27 +0100)]
[X86] LowerTRUNCATE - attempt to use PACKSS/PACKUS on AVX512 targets if the truncation source is concatenating from smaller subvectors
Don't just use AVX512 truncation ops if PACKSS/PACKUS can do this more cheaply
Simon Pilgrim [Thu, 29 Jun 2023 13:58:56 +0000 (14:58 +0100)]
[X86] Add isFreeToSplitVector helper to detect nodes that we can freely split/extract subvectors from.
Helper wrapper around the existing collectConcatOps method.
LLVM GN Syncbot [Thu, 29 Jun 2023 14:13:28 +0000 (14:13 +0000)]
[gn build] Port
cfa096d9c92e
Christian Trott [Thu, 29 Jun 2023 14:06:47 +0000 (10:06 -0400)]
[libc++][mdspan] Implement layout_right
This commit implements layout_right in support of C++23 mdspan
(https://wg21.link/p0009). layout_right is a layout mapping policy
whose index mapping corresponds to the memory layout of multidimensional
C-arrays, and is thus also referred to as the C-layout.
Co-authored-by: Damien L-G <dalg24@gmail.com>
Differential Revision: https://reviews.llvm.org/D151267
Takuya Shimizu [Thu, 29 Jun 2023 14:02:09 +0000 (23:02 +0900)]
[clang][Sema] Remove dead diagnostic for loss of __unaligned qualifier
D120936 has made the loss of `__unaligned` qualifier NOT a bad-conversion.
Because of this, the bad-conversion note about the loss of this qualifier does not take effect.
e.g.
```
void foo(int *ptr);
void func(const __unaligned int *var) { foo(var); }
```
BEFORE this patch:
```
source.cpp:3:41: error: no matching function for call to 'foo'
3 | void func(const __unaligned int *var) { foo(var); }
| ^~~
source.cpp:1:6: note: candidate function not viable: 1st argument ('const __unaligned int *') would lose __unaligned qualifier
1 | void foo(int *ptr);
| ^
2 |
3 | void func(const __unaligned int *var) { foo(var); }
| ~~~
```
AFTER this patch:
```
source.cpp:3:41: error: no matching function for call to 'foo'
3 | void func(const __unaligned int *var) { foo(var); }
| ^~~
source.cpp:1:6: note: candidate function not viable: 1st argument ('const __unaligned int *') would lose const qualifier
1 | void foo(int *ptr);
| ^
2 |
3 | void func(const __unaligned int *var) { foo(var); }
| ~~~
```
Please note the different mentions of `__unaligned` and `const` in notes.
Reviewed By: cjdb, rnk
Differential Revision: https://reviews.llvm.org/D153690
Mike Crowe [Wed, 28 Jun 2023 15:36:42 +0000 (15:36 +0000)]
[clang-tidy] Fix modernize-use-std-print check when return value used
The initial implementation of the modernize-use-std-print check was
capable of converting calls to printf (etc.) which used the return value
to calls to std::print which has no return value, thus breaking the
code.
Use code inspired by the implementation of bugprone-unused-return-value
check to ignore cases where the return value is used. Add appropriate
lit test cases and documentation.
Reviewed By: PiotrZSL
Differential Revision: https://reviews.llvm.org/D153860
Alexey Lapshin [Tue, 27 Jun 2023 19:27:34 +0000 (21:27 +0200)]
[DWARFv5][DWARFLinker] Remove dsymutil-classic compatibility feature as it leads to an error.
DWARFLinker has a compatibility feature with dsymutil-classic.
It may keep location expression attribute even if does not
reference live address. Current llvm-dwarfdump --verify
reports a error if variable references an address but is not
added into the .debug_names table.
error: Name Index @ 0x0: Entry for DIE @ 0xf35 (DW_TAG_variable) with name seed missing.
DW_TAG_variable
DW_AT_name ("seed")
DW_AT_type (0x00000000000047b7 "uint64_t")
DW_AT_location (DW_OP_addr 0x9ff8) <<<< dead address
DWARFLinker does not add the variable into .debug_names table
because it references dead address. To have a valid variable and
consistent accelerator table it is necessary to remove location expression
referencing dead address. This patch removes dsymutil-classic
compatibilty feature.
Differential Revision: https://reviews.llvm.org/D153988
Nikita Popov [Thu, 29 Jun 2023 13:31:18 +0000 (15:31 +0200)]
[X86] Add tests for PR63475 (NFC)
pvanhout [Mon, 26 Jun 2023 15:59:55 +0000 (17:59 +0200)]
[MCP] Optimize copies from undef
Revert D152502 and instead optimize away copy from undefs, but clear the undef flag on the original copy.
Apparently, not optimizing the COPY can cause performance issues in some cases.
Fixes SWDEV-405813, SWDEV-405899
Reviewed By: arsenm
Differential Revision: https://reviews.llvm.org/D153838
Sean Perry [Thu, 29 Jun 2023 12:54:20 +0000 (08:54 -0400)]
[SystemZ][z/OS] Add support for z/OS link step (executable and shared libs)
Add support for performing a link step on z/OS. This will support C & C++ building executables and shared libs.
Reviewed By: zibi, abhina.sreeskantharajan
Differential Revision: https://reviews.llvm.org/D153580
Luke Lau [Thu, 29 Jun 2023 12:54:57 +0000 (13:54 +0100)]
[RISCV] Add tests for cost modelling constants in phis
Reviewed By: ABataev
Differential Revision: https://reviews.llvm.org/D149168
pvanhout [Tue, 27 Jun 2023 14:50:01 +0000 (16:50 +0200)]
[AMDGPU] Handle Additional Cases in tryFoldPhiAGPR
Sometimes PHI have different incoming values, such as:
```
%1:vgpr_256 = COPY %0:agpr_256
%2:vgpr_32 = COPY %1:vgpr_256.sub0
```
Those weren't handled, which could lead to massive performance issues if break-large-PHIs kicked in + AGPRs were used (MFMA)
Fixes SWDEV-407986
Reviewed By: #amdgpu, arsenm
Differential Revision: https://reviews.llvm.org/D153879
Luke Lau [Thu, 4 May 2023 18:42:05 +0000 (19:42 +0100)]
[TTI] Use users of GEP to guess access type in getGEPCost
Currently getGEPCost uses the target type of the GEP as a heuristic for
the type that will be accessed, to pass onto isLegalAddressingMode.
Targets use this to work out if a GEP can then be folded into the
load/store instruction that uses the GEP.
For example, on RISC-V loads and stores can have an offset added to a
base register folded into a single instruction, so the following GEP is
free:
%p = getelementptr i32, ptr %base, i32 42 ; getInstructionCost = 0
%x = load i32, ptr %p ; getInstructionCost = 1
------------------------------------------------------------------------
lw t0, a0(42)
However vector loads and stores cannot have an offset folded into them,
so the following GEP is costed:
%p = getelementptr <2 x i32>, ptr %base, i32 42 ; getInstructionCost = 1
%x = load <2 x i32>, ptr %p ; getInstructionCost = 1
------------------------------------------------------------------------
addi a0, 42
vle32 v8, (a0)
The issue arises whenever there is a mismatch between the target type of
the GEP and the type that is actually accessed:
%p = getelementptr i32, ptr %base, i32 42 ; getInstructionCost = 0
%x = load <2 x i32>, ptr %p ; getInstructionCost = 1
------------------------------------------------------------------------
addi a0, 42
vle32 v8, (a0)
Even though this GEP will result in an add instruction, because TTI
thinks it's loading an i32, it will think it can be folded and not
charge for it.
The target type can become mismatched with the memory access during
transformations, noticeably during SLP where a scalar base pointer will
be reused to perform a vector load or store.
This patch adds an optional AccessType argument to getGEPCost which
allows the type of memory accessed by users to be passed in as a hint,
so that we can more accurately determine if the GEP can be folded into
its users.
If AccessType is not provided, getGEPCost falls back to the old
behaviour of using the PointeeType to guess the memory access type. This
can be revisited in a later patch.
Also for now, only GEPs with exactly one user use the access type hint.
Whilst we could look through all users and use all access types to
determine if we can fold the GEP, this patch avoids doing so to prevent
O(N) behaviour.
Differential Revision: https://reviews.llvm.org/D149889
Luke Lau [Thu, 4 May 2023 18:36:48 +0000 (19:36 +0100)]
[RISCV][SLP] Add tests for GEP costs
This patch updates the tests in gep.ll to have explicitly memory
accesses using them, to illustrate the new behaviour in D149889.
New tests have also been added for mismatched pointer types and memory
access types, and gep-zero-indices.ll has also been added to make sure
that we always cost GEPs with all zero indices as free.
Ivan Butygin [Fri, 23 Jun 2023 17:38:32 +0000 (19:38 +0200)]
[mlir][memref] Add some missing interfaces to memref ops.
Add `ViewLikeOpInterface` to `ExtractStridedMetadataOp` as it returns its buffer as one of the results.
Add mem Read/Write attributes to atomic ops.
Differential Revision: https://reviews.llvm.org/D153647
David Green [Thu, 29 Jun 2023 12:29:34 +0000 (13:29 +0100)]
[AArch64] Add and cmp cost model tests. NFC
See D153611. Tests for the cost of icmp(and, 0) are added, in addition to
expanding the extractelements-to-shuffle.ll test, which has always been a bit
simple, to include a more complete example with both a vector and scalar
version. The icmp(and, 0) costs are targetting at improving the second when the
cost of vector inserts and extracts is lowered.
eopXD [Thu, 29 Jun 2023 08:39:25 +0000 (01:39 -0700)]
[Clang][RISCV] Fix RISC-V vector / SiFive intrinsic inclusion in SemaLookup
The existing code assumes that both `DeclareRISCVVBuiltins` and
`DeclareRISCVSiFiveVectorBuiltins` are set when coming into the if-statement
under SemaLookup.cpp.
This is not the case and causes issue #63571.
This patch resolves the issue.
Reviewed By: 4vtomat, kito-cheng
Differential Revision: https://reviews.llvm.org/D154050
Guillaume Chatelet [Thu, 29 Jun 2023 12:21:26 +0000 (12:21 +0000)]
[libc][NFC] Use SIZE_MAX instead of size_t(-1)
Paul Walker [Thu, 22 Jun 2023 14:03:28 +0000 (14:03 +0000)]
[Clang] Allow C++11 style initialisation of SVE types.
Fixes https://github.com/llvm/llvm-project/issues/63223
Differential Revision: https://reviews.llvm.org/D153560
Ben Shi [Fri, 23 Jun 2023 07:15:57 +0000 (15:15 +0800)]
[CSKY][test][NFC] Add tests of ANDI/ORI
These tests will be optimized with BSETI32/BCLRI32
in the future.
Reviewed By: zixuan-wu
Differential Revision: https://reviews.llvm.org/D153613
Ben Shi [Wed, 21 Jun 2023 07:43:06 +0000 (15:43 +0800)]
[CSKY][NFC] Simplify code with multiclass
Reviewed By: zixuan-wu
Differential Revision: https://reviews.llvm.org/D153402
Alex Brachet [Thu, 29 Jun 2023 11:22:00 +0000 (11:22 +0000)]
[ELF][NFC] Change comment terminology
Differential Revision: https://reviews.llvm.org/D153978
Quentin Colombet [Thu, 29 Jun 2023 10:25:15 +0000 (12:25 +0200)]
[mlir][Linalg] Add a softmax op
This patch adds a softmax op.
For now, nothing interesting happens, we can only do a round trip.
Later patches will add the tiling interface and the lowering of this op to
a sequence of simpler ops.
This is graduating the linag_ext.softmax op from iree to LLVM.
Original implementation from Harsh Menon <harsh@nod-labs.com>
Nicolas Vasilache <nicolas.vasilache@gmail.com> co-authored this patch.
Differential Revision: https://reviews.llvm.org/D153422
Joel Wee [Thu, 29 Jun 2023 10:46:54 +0000 (12:46 +0200)]
[mlir][GreedyPatternRewriter] Add out param to detect changes in IR in `applyPatternsAndFoldGreedily`
This allows users of `applyPatternsAndFoldGreedily` to detect if any MLIR changes have occurred. An example use-case is where we expect the `applyPatternsAndFoldGreedily` to change the IR and want to validate that it indeed does change it.
Differential Revision: https://reviews.llvm.org/D153986
Florian Hahn [Thu, 29 Jun 2023 10:18:43 +0000 (11:18 +0100)]
[ConstraintElim] Add ptr phi tests with upper bounds with const offsets.
Extra tests for D152730.
Ivan Kosarev [Thu, 29 Jun 2023 09:51:37 +0000 (10:51 +0100)]
[AMDGPU][AsmParser][NFC] Simplify instruction operand definitions.
This addresses the trivial cases that only require removing the
operand classes and renaming related entities.
Part of <https://github.com/llvm/llvm-project/issues/62629>.
Reviewed By: foad
Differential Revision: https://reviews.llvm.org/D153965
Liren Peng [Thu, 29 Jun 2023 08:08:06 +0000 (16:08 +0800)]
Revert "[ScalarEvolution] Infer loop max trip count from array accesses"
This reverts commit
57e093162e27334730d8ed8f7b25b1b6f65ec8c8.
Jie Fu [Thu, 29 Jun 2023 08:58:12 +0000 (16:58 +0800)]
[RISCV] Remove unused variables in RISCVISelDAGToDAG.cpp (NFC)
/Users/jiefu/llvm-project/llvm/lib/Target/RISCV/RISCVISelDAGToDAG.cpp:97:33: error: unused variable 'FuncInfo' [-Werror,-Wunused-variable]
RISCVMachineFunctionInfo *FuncInfo =
^
/Users/jiefu/llvm-project/llvm/lib/Target/RISCV/RISCVISelDAGToDAG.cpp:106:29: error: unused variable 'TLI' [-Werror,-Wunused-variable]
const TargetLowering &TLI = CurDAG->getTargetLoweringInfo();
^
2 errors generated
Yunze Zhu [Thu, 29 Jun 2023 06:38:45 +0000 (14:38 +0800)]
[RISCV] Use temporary stack in expanding SPLAT_VECTOR_SPLIT_I64_VL node
There is an issue: https://github.com/llvm/llvm-project/issues/63515
The issue is because when expanding SPLAT_VECTOR_SPLIT_I64_VL node, only memoperand is used to create dependency.
However in ScheduleDAGNodes, dependency is checked with chain only, and breaks order of store/load instructions.
I think in llvm.bitreverse.nxv2i64 intrinsic SPLAT_VECTOR_SPLIT_I64_VL nodes are parallel processed,
so no chain should be add to these nodes.
Using temporary in expanding SPLAT_VECTOR_SPLIT_I64_VL node can keep vlse instruction get correct value
no matter order of store instructions is changed.
Differential Revision: https://reviews.llvm.org/D153743
Florian Hahn [Thu, 29 Jun 2023 08:35:35 +0000 (09:35 +0100)]
[ConstraintElim] Add pointer induction tests with struct types.
Extra tests for D152730.
David Spickett [Wed, 28 Jun 2023 08:01:14 +0000 (08:01 +0000)]
Reland "[LLDB] Fix the use of "platform process launch" with no extra arguments"
This reverts commit
3254623d73fb7252385817d8057640c9d5d5ffd1.
One test has been updated to add the "-s" flag which along with
86fd957af981f146a306831608d7ad2de65b9560 should fix the tests on MacOS.
An assert on hijack listener added in that patch was removed, it seems
to be correct on MacOS but not on Linux.
Arthur Eubanks [Thu, 29 Jun 2023 08:18:07 +0000 (10:18 +0200)]
[PhaseOrdering] Add test with gep null compare in loop (NFC)
Test from D153392 in both the alloca and malloc variants.
Florian Hahn [Thu, 29 Jun 2023 08:17:37 +0000 (09:17 +0100)]
[ConstraintElim] Allow and check preconditions in doesHold.
Delegate checking of the constraint & its preconditions to the existing
::isValid. This reduces duplication and allows additional optimizations
together with D152730.
Christian Ulmann [Thu, 29 Jun 2023 07:53:18 +0000 (07:53 +0000)]
[mlir][llvm] Dominance violating debug intrinsic import
Debug intrinsics are allowed to violate SSA dominance and might thus
cause the LLVM import to produce invalid LLVM dialect. This commit
ensures that the debug intrinsics are emitted right after the definition
of their SSA operands.
As the position of debug intrinsics has no meaning, changing it has no
semantic implication.
Reviewed By: gysit
Differential Revision: https://reviews.llvm.org/D153984
Michael Platings [Thu, 29 Jun 2023 08:07:12 +0000 (09:07 +0100)]
[Clang][Driver] Change missing multilib error to warning
The error could be awkward to work around when experimenting with flags
that didn't have a matching multilib. It also broke many tests when
multilib.yaml was present in the build directory.
Reviewed By: simon_tatham, MaskRay
Differential Revision: https://reviews.llvm.org/D153885
Michael Platings [Wed, 28 Jun 2023 07:44:41 +0000 (08:44 +0100)]
[test] Replace aarch64-*-eabi with aarch64
Also replace aarch64_be-*-eabi with aarch64_be
Using "eabi" for aarch64 targets is a common mistake and warned by Clang Driver.
We want to avoid it elsewhere as well. Just use the common "aarch64" without
other triple components.
Reviewed By: MaskRay
Differential Revision: https://reviews.llvm.org/D153943
Nikita Popov [Thu, 29 Jun 2023 07:58:49 +0000 (09:58 +0200)]
[FunctionAttrs] Regenerate test checks (NFC)
Juan Manuel MARTINEZ CAAMAÑO [Thu, 29 Jun 2023 07:31:34 +0000 (09:31 +0200)]
[InlineCost][TargetTransformInfo][AMDGPU] Consider cost of alloca instructions in the caller (2/2)
Before this patch, the compiler gave a bump to the inline-threshold
when the total size of the allocas passed as arguments to the
callee was below 256 bytes.
This heuristic ignores that some of these allocas could have be removed
by SROA if inlining was applied.
Ideally, this bonus would be attributed to the threshold once the
size of all the allocas that could not be handled by SROA is known:
at the end of the InlineCost analysis.
However, we may never reach this point if the inline-cost analysis exits
early when the inline cost goes over the threshold mid-analysis.
This patch proposes:
* Attribute the bonus in the inline-threshold when allocas are passed
as arguments (regardless of their total size).
* Assigns a cost to each alloca proportional to its size,
such that the cost of all the allocas cancels the bonus.
Potential problems:
* This patch assumes that removing alloca instructions with SROA is
always profitable. This may not be the case if the total size of the
allocas is still too big to be promoted to registers/LDS.
* Redundant calls to getTotalAllocaSize
* Awkwardly, the threshold attributed contributes to the single-bb and
vector bonus.
Reviewed By: scchan
Differential Revision: https://reviews.llvm.org/D149741
Juan Manuel MARTINEZ CAAMAÑO [Thu, 29 Jun 2023 07:11:54 +0000 (09:11 +0200)]
[InlineCost][TargetTransformInfo][AMDGPU] Consider cost of alloca instructions in the caller (1/2)
On AMDGPU, alloca instructions have penalty that can
be avoided when SROA is applied after inlining.
This patch introduces the default implementation of
TargetTransformInfo::getCallerAllocaCost.
Reviewed By: mtrofin
Differential Revision: https://reviews.llvm.org/D149740
mgrzywac [Thu, 29 Jun 2023 07:41:08 +0000 (07:41 +0000)]
[libunwind] Add cached compile and link flags to libunwind
Add flags allowing to use compile flags and libraries provided in cache with libunwind.
Similar flags are already present in libc++ and libc++abi CMakeLists files.
Differential Revision: https://reviews.llvm.org/D150252
Craig Topper [Thu, 29 Jun 2023 07:20:47 +0000 (00:20 -0700)]
[RISCV] Do a more complete job of disabling extending loads and truncating stores for fixed vector types.
We weren't marking some combinations as Expand if ones of the
types wasn't legal.
Fixes #63596.
Hanbum Park [Thu, 29 Jun 2023 07:13:18 +0000 (09:13 +0200)]
[InstSimplify] Fold icmp of allocas based on offset difference
Strengthen the fold for icmps of non-overlapping storage, by
working on the difference of offsets, rather than considering
both offsets independently. In particular, this allows handling
comparisons of pointers to the end of equal-sized allocations.
Proofs: https://alive2.llvm.org/ce/z/Po2nL4
Differential Revision: https://reviews.llvm.org/D153752
Martin Braenne [Thu, 29 Jun 2023 06:39:39 +0000 (06:39 +0000)]
[clang][dataflow] Don't crash when creating pointers to members.
The newly added tests crash without the other changes in this patch.
Reviewed By: sammccall, xazax.hun, gribozavr2
Differential Revision: https://reviews.llvm.org/D153960
Nikita Popov [Fri, 23 Jun 2023 10:50:27 +0000 (12:50 +0200)]
[SCEV] Make use of non-null pointers for range calculation
We know that certain pointers (e.g. non-extern-weak globals or
allocas in default address space) are not null, in which case the
lowest address they can be allocated at is their alignment.
This allows us to calculate better exit counts for loops that have
an additional null check in the guarding condition
(see alloca_icmp_null_exit_count).
Differential Revision: https://reviews.llvm.org/D153624
Tobias Gysi [Thu, 29 Jun 2023 06:31:03 +0000 (06:31 +0000)]
[mlir][llvm] Add debug label intrinsic
This revision adds support for the llvm.dbg.label.intrinsic
and the corresponding DILabel metadata.
Reviewed By: Dinistro
Differential Revision: https://reviews.llvm.org/D153975
Jianjian GUAN [Thu, 29 Jun 2023 03:15:14 +0000 (11:15 +0800)]
[RISCV] Update computeKnownBitsForTargetNode for FPCLASS.
The fclass instruction only set one of the low 10 bits.
Reviewed By: craig.topper
Differential Revision: https://reviews.llvm.org/D154040
Mikael Holmen [Thu, 29 Jun 2023 05:51:15 +0000 (07:51 +0200)]
[StructuralHash] Ignore global variable declarations
Ignore declarations of global variables, just as we do with declarations
of functions.
Done as a follow up to the comments in https://reviews.llvm.org/D149209
Differential Revision: https://reviews.llvm.org/D153855
# Conflicts:
# llvm/lib/IR/StructuralHash.cpp
Han Shen [Thu, 29 Jun 2023 05:18:53 +0000 (22:18 -0700)]
[Analysis] Refactor MBB hotness/coldness into templated PSI functions.
Currently, to use PSI->isFunctionHotInCallGraph, we first need to
calculate BPI->BFI, which is expensive. Instead, we can implement this
directly with MBFI. Also as @wenlei mentioned in another patch review,
that MachineSizeOpts already has isFunctionColdInCallGraph,
isFunctionHotInCallGraphNthPercentile, etc implemented. These can be
refactored and so they can be reused across MachineFunctionSplitting
and MachineSizeOpts passes.
This CL does this - it refactors out those internal static functions
into PSI as templated functions, so they can be accessed easily.
Differential Revision: https://reviews.llvm.org/D153927
Freddy Ye [Thu, 29 Jun 2023 05:29:00 +0000 (13:29 +0800)]
[NFC] Add missing cpu tests in predefined-arch-macros.c
Added tests for penryn, nehalem, westmere, sandybridge, ivybridge,
haswell, bonnell, silvermont.
Reviewed By: skan
Differential Revision: https://reviews.llvm.org/D153714
Martin Braenne [Wed, 28 Jun 2023 08:38:00 +0000 (08:38 +0000)]
[clang][dataflow] Make `getThisPointeeStorageLocation()` return an `AggregateStorageLocation`.
This avoids the need for casts at callsites.
Depends On D153852
Reviewed By: sammccall, xazax.hun, gribozavr2
Differential Revision: https://reviews.llvm.org/D153854
Martin Braenne [Wed, 28 Jun 2023 08:36:06 +0000 (08:36 +0000)]
[clang][dataflow] Initialize fields of anonymous records correctly.
Previously, the newly added test would crash.
Depends On D153851
Reviewed By: gribozavr2
Differential Revision: https://reviews.llvm.org/D153852
luxufan [Wed, 28 Jun 2023 15:01:09 +0000 (23:01 +0800)]
[ValueTracking] Guaranteed well-defined if parameter has a dereferecable_or_null attribute
Reviewed By: nikic
Differential Revision: https://reviews.llvm.org/D153945
zhanglimin [Thu, 29 Jun 2023 03:40:22 +0000 (11:40 +0800)]
[sanitizer][msan] The LLVM part of the LoongArch memory sanitizer implementation
This patch enabled msan in LLVM and fixed all failing tests in
check-msan.
It does not add VarArgHelper implementation on LoongArch, which
will be done separately later. And it adds a test for VarArgNoOpHelper,
which is based on the X86 one.
Reviewed By: vitalybuka
Differential Revision: https://reviews.llvm.org/D152692
Manna, Soumi [Thu, 29 Jun 2023 02:51:15 +0000 (19:51 -0700)]
[analyzer] Refactor codes in findMethodDecl()
In findMethodDecl(clang::ObjCMessageExpr const *, clang::ObjCObjectPointerType const *, clang::ASTContext &), if the MessageExpr->getReceiverKind() is not Instance or Class, we never dereference pointer “ReceiverObjectPtrType”. Also, we don't dereference the pointer “ReceiverObjectPtrType” if ReceiverType is ObjCIdType or ObhjCClassType. So the pointer “ReceiverObjectPtrType”is only used in this branch and the declaration should be here.
This patch directly uses ReceiverType->castAs<ObjCObjectPointerType>() instead of ReceiverObjectPtrType when calling canAssignObjCInterfaces() to express the intent more clearly.
Reviewed By: erichkeane, steakhal
Differential Revision: https://reviews.llvm.org/D152194
zhanglimin [Thu, 29 Jun 2023 01:46:02 +0000 (09:46 +0800)]
[MSan] Enable MSAN for loongarch64
This patch adds basic memory sanitizer support for loongarch64
with 47-bit VMA, which memory layout is based on x86_64.
The LLVM part of the LoongArch memory sanitizer implementation will
be done separately, which will fix failing tests in check-msan.
These failing tests fail with the following same error: "error in
backend: unsupported architecture".
Reviewed By: #sanitizers, vitalybuka, MaskRay
Differential Revision: https://reviews.llvm.org/D140528
Wang, Xin10 [Thu, 29 Jun 2023 03:23:06 +0000 (23:23 -0400)]
[NFC]Fix possibly derefer nullptr in ComplexDeinterleavingPass.cpp
Fix static analyzer reports issue, add assert to avoid analyzer report.
Reviewed By: igor.kirillov
Differential Revision: https://reviews.llvm.org/D153942
Weining Lu [Wed, 28 Jun 2023 00:25:11 +0000 (08:25 +0800)]
[LoongArch] Emit R_LARCH_64_PCREL relocation for FK_Data_8 when IsPCRel is true
Reviewed By: xen0n, MaskRay, hev
Differential Revision: https://reviews.llvm.org/D153872
4vtomat [Tue, 27 Jun 2023 07:06:40 +0000 (00:06 -0700)]
[RISCV] Bump vector crypto to v1.0.0-rc1
Differential Revision: https://reviews.llvm.org/D153836
Manna, Soumi [Thu, 29 Jun 2023 02:25:46 +0000 (19:25 -0700)]
[CLANG] Fix potential integer overflow value in getRVVTypeSize()
In getRVVTypeSize(clang::ASTContext &, clang::BuiltinType const *) potential integer overflow occurs on expression VScale->first * MinElts with type unsigned int (32 bits, unsigned) is evaluated using 32-bit arithmetic, and then used in a context that expects an expression of type uint64_t (64 bits, unsigned).
To avoid integer overflow, this patch changes the types of variables MinElts and EltSize to uint64_t from unsigned instead of the cast.
Reviewed By: erichkeane
Differential Revision: https://reviews.llvm.org/D153146
Hideto Ueno [Thu, 29 Jun 2023 01:56:48 +0000 (18:56 -0700)]
[mlir][IR] clang-format OperationSupport.cpp, NFC
Follow-up to D154015
Hideto Ueno [Thu, 29 Jun 2023 01:47:21 +0000 (18:47 -0700)]
[mlir][IR] Combine location hash if required in OperationEquivalence::computeHash
This fixes a bug that `OperationEquivalence::computeHash` doesn't
combine hash of operation locations even when `IgnoreLocations` is false.
Added a unit test which fails at the current trunk.
Reviewed By: mehdi_amini
Differential Revision: https://reviews.llvm.org/D154015
Kai Sasaki [Thu, 29 Jun 2023 01:04:35 +0000 (10:04 +0900)]
[mlir][memref] Make result normalization aware of the number symbols
Memref normalization fails to recognize the non-zero symbols used in the memref type itself with strided, offset information. It causes the crash with the type like `memref<128x512xf32, strided<[?, ?], offset: ?>>`. The original issue is here. https://github.com/llvm/llvm-project/issues/61345
Reviewed By: mehdi_amini
Differential Revision: https://reviews.llvm.org/D150250
Amir Ayupov [Thu, 29 Jun 2023 00:53:54 +0000 (17:53 -0700)]
[BOLT] Add -dump-cg option to dump call graph
Reviewed By: #bolt, rafauler
Differential Revision: https://reviews.llvm.org/D153994
Amir Ayupov [Thu, 29 Jun 2023 00:52:35 +0000 (17:52 -0700)]
[BOLT][NFC] Add extra debug logging to buildCallGraph
Reviewed By: #bolt, rafauler
Differential Revision: https://reviews.llvm.org/D153987
Amir Ayupov [Thu, 29 Jun 2023 00:50:39 +0000 (17:50 -0700)]
[BOLT][NFC] Print functions after attaching profile (-print-profile)
Add an extra point of dumping functions: immediately after attaching the profile information.
This dumping is enabled by newly introduced `-print-profile` and `-print-all`.
The reason is that in `aggregate-only`/perf2bolt mode BOLT may not reach the point of
printing the function after CFG is constructed (`-print-cfg`), while we may still want to inspect
the attached profile, especially for diff'ing purposes.
Reviewed By: #bolt, rafauler
Differential Revision: https://reviews.llvm.org/D153996
Tue Ly [Thu, 29 Jun 2023 00:30:54 +0000 (20:30 -0400)]
[libc][NFC] Set rounding mode for sincosf exhaustive test.
Christopher Ferris [Wed, 28 Jun 2023 21:24:38 +0000 (14:24 -0700)]
[scudo] Use fast get time in secondary.
When I moved the primary to use the faster get time syscall, I missed
the secondary use. Now fix the secondary to use this function too.
Reviewed By: Chia-hungDuan
Differential Revision: https://reviews.llvm.org/D154012
Florian Hahn [Wed, 28 Jun 2023 22:12:05 +0000 (23:12 +0100)]
[ConstraintElim] Add tests with phis and different alloc sizes/end ptrs.
Extra tests for D152730
varconst [Tue, 27 Jun 2023 23:40:39 +0000 (16:40 -0700)]
[libc++][hardening][NFC] Introduce `_LIBCPP_ASSERT_UNCATEGORIZED`.
Replace most uses of `_LIBCPP_ASSERT` with
`_LIBCPP_ASSERT_UNCATEGORIZED`.
This is done as a prerequisite to introducing hardened mode to libc++.
The idea is to make enabling assertions an opt-in with (somewhat)
fine-grained controls over which categories of assertions are enabled.
The vast majority of assertions are currently uncategorized; the new
macro will allow turning on `_LIBCPP_ASSERT` (the underlying mechanism
for all kinds of assertions) without enabling all the uncategorized
assertions (in the future; this patch preserves the current behavior).
Differential Revision: https://reviews.llvm.org/D153816
Luke Lau [Tue, 20 Jun 2023 14:23:00 +0000 (15:23 +0100)]
[RISCV] Add test cases for vmv.v.vs which could be combined
Reviewed By: craig.topper
Differential Revision: https://reviews.llvm.org/D153350
Luke Lau [Tue, 13 Jun 2023 13:51:49 +0000 (13:51 +0000)]
[RISCV] Add test cases for insert subvector shuffles for fixed vectors
These cases could have the vmv.v.v folded into the VL of the previous
instruction.
Reviewed By: craig.topper
Differential Revision: https://reviews.llvm.org/D153030
Luke Lau [Tue, 6 Jun 2023 11:16:13 +0000 (13:16 +0200)]
[DAGCombine] Fold (store (insert_elt (load p)) x p) -> (store x)
If we have a store of a load with no other uses in between it, it's
considered dead and is removed. So sometimes when legalizing a fixed
length vector store of an insert, we end up producing better code
through scalarization than without.
An example is the follow below:
%a = load <4 x i64>, ptr %x
%b = insertelement <4 x i64> %a, i64 %y, i32 2
store <4 x i64> %b, ptr %x
If this is scalarized, then DAGCombine successfully removes 3 of the 4
stores which are considered dead, and on RISC-V we get:
sd a1, 16(a0)
However if we make the vector type legal (-mattr=+v), then we lose the
optimisation because we don't scalarize it.
This patch attempts to recover the optimisation for vectors by
identifying patterns where we store a load with a single insert
inbetween, replacing it with a scalar store of the inserted element.
Reviewed By: RKSimon
Differential Revision: https://reviews.llvm.org/D152276
Luke Lau [Wed, 28 Jun 2023 11:57:32 +0000 (11:57 +0000)]
[RISCV] Add fixed vector insert tests that are pass by value
So we can still test insert_vector_elt lowering with D152276
Reviewed By: frasercrmck, craig.topper
Differential Revision: https://reviews.llvm.org/D153964
LLVM GN Syncbot [Wed, 28 Jun 2023 21:38:12 +0000 (21:38 +0000)]
[gn build] Port
75a1797044fc
Paul Kirth [Wed, 28 Jun 2023 15:33:24 +0000 (15:33 +0000)]
Reland [llvm] Preliminary fat-lto-objects support
Fat LTO objects contain both LTO compatible IR, as well as generated
object code. This allows users to defer the choice of whether to use LTO
or not to link-time. This is a feature available in GCC for some time,
and makes the existing -ffat-lto-objects flag functional in the same
way as GCC's.
Within LLVM, we add a new EmbedBitcodePass that serializes the module to
the object file, and expose a new pass pipeline for compiling fat
objects. The new pipeline initially clones the module and runs the
selected (Thin)LTOPrelink pipeline, after which it will serialize the
module into a `.llvm.lto` section of an ELF file. When compiling for
(Thin)LTO, this normally the point at which the compiler would emit a
object file containing the bitcode and metadata.
After that point we compile the original module using the
PerModuleDefaultPipeline used for non-LTO compilation. We generate
standard object files at the end of this pipeline, which contain machine
code and the new `.llvm.lto` section containing bitcode.
Since the two pipelines operate on different copies of the module, we
can be sure that the bitcode in the `.llvm.lto` section and object code
in `.text` are congruent with the existing output produced by the
default and LTO pipelines.
Original RFC: https://discourse.llvm.org/t/rfc-ffat-lto-objects-support/63977
Earlier versions of this patch were missing REQUIRES lines for llc
related tests in Transforms/EmbedBitcode. Those tests are now under
CodeGen/X86, which should avoid running the check on unsupported
platforms.
The EmbedbBitcodePass also returned PreservedAnalyses::all when adding a
metadata section, which failed expensive checks, since it modified the
module. This is now corrected.
Reviewed By: tejohnson, MaskRay, nikic
Differential Revision: https://reviews.llvm.org/D146776
Peiming Liu [Wed, 28 Jun 2023 19:56:38 +0000 (19:56 +0000)]
[mlir][sparse] admit un-sparsifiable operations if all its operands are loaded from dense input
Reviewed By: aartbik
Differential Revision: https://reviews.llvm.org/D153998
Fangrui Song [Wed, 28 Jun 2023 21:01:08 +0000 (14:01 -0700)]
[Object] Add ELF section type SHT_LLVM_BITCODE for LLVM bitcode
clang -ffat-lto-objects can use this new ELF section type for the .llvm.lto
section for fat LTO support (D146776).
Original RFC: https://discourse.llvm.org/t/rfc-ffat-lto-objects-support/63977
Reviewed By: jhenderson
Differential Revision: https://reviews.llvm.org/D153215
Matt Arsenault [Sun, 20 Nov 2022 16:50:13 +0000 (08:50 -0800)]
HIP: Directly call floor builtins
Alexey Bataev [Wed, 28 Jun 2023 19:53:39 +0000 (12:53 -0700)]
[SLP]Fix emission of buildvectors with full match.
If the buildvector node is a full match of another node, need to
correctly build the mask for the original vector value and build common
mask for the emitted node.
Wenlei He [Wed, 28 Jun 2023 18:54:39 +0000 (11:54 -0700)]
[NFC][Sample PGO] Avoid non-const accessor for CallsiteSamples
Exposing a non-const accessor for clearing CallsiteSamples during flattening is a big of an overkill. Replace the non-const accessor with removeAllCallsiteSamples.
Differential Revision: https://reviews.llvm.org/D153995
Nikolas Klauser [Wed, 28 Jun 2023 20:33:40 +0000 (13:33 -0700)]
[clang] Fix checking the equality comparator of base classes in __is_trivially_equality_comparable
Fixes #63192
Reviewed By: cor3ntin
Spies: cfe-commits
Differential Revision: https://reviews.llvm.org/D153890
Ethan Luis McDonough [Wed, 28 Jun 2023 20:02:37 +0000 (15:02 -0500)]
[flang][openmp] Fortran offloading test
Flang currently supports offloading for AMD GPUs. This patch establishes a test structure for Fortran offloading tests in libomptarget.
Reviewed By: jdoerfert
Differential Revision: https://reviews.llvm.org/D148778
Florian Hahn [Wed, 28 Jun 2023 20:10:43 +0000 (21:10 +0100)]
[ConstraintElim] Add additional induction phi tests with end argument.
Extra tests for D152730 with different GEP step sizes and the end pointer
being an argument.
David Green [Wed, 28 Jun 2023 20:02:29 +0000 (21:02 +0100)]
[SLP] Use vector types for cmp alt instructions costs
Similar to the other code that costs main/alt instructions, the cmp should be
using the VecTy for the costs, not the ScalarTy.
One of the tests look like it gets worse just because it is not simplified to
0.
Differential Revision: https://reviews.llvm.org/D153507
Serge Pavlov [Wed, 28 Jun 2023 19:04:31 +0000 (02:04 +0700)]
Revert "[Clang] Reset FP options before function instantiations"
This reverts commit
98390ccb80569e8fbb20e6c996b4b8cff87fbec6.
It caused issue #63542.
Matt Arsenault [Tue, 6 Jun 2023 22:06:38 +0000 (18:06 -0400)]
HIP: Use frexp builtins in math headers
Matt Arsenault [Wed, 28 Jun 2023 19:04:08 +0000 (15:04 -0400)]
LangRef: Fix sphinx build error
root [Fri, 23 Jun 2023 17:59:22 +0000 (10:59 -0700)]
adding bf16 support to NVPTX
Currently, bf16 has been scatteredly added to the PTX codegen. This patch aims to complete the set of instructions and code path required to support bf16 data type.
Reviewed By: tra
Differential Revision: https://reviews.llvm.org/D144911
Co-authored-by: Artem Belevich <tra@google.com>
Matt Arsenault [Tue, 2 May 2023 13:07:47 +0000 (09:07 -0400)]
clang: Use new frexp intrinsic for builtins and add f16 version
Matt Arsenault [Thu, 27 Apr 2023 01:57:10 +0000 (21:57 -0400)]
IR: Add llvm.frexp intrinsic
Add an intrinsic which returns the two pieces as multiple return
values. Alternatively could introduce a pair of intrinsics to
separately return the fractional and exponent parts.
AMDGPU has native instructions to return the two halves, but could use
some generic legalization and optimization handling. For example, we
should be able to handle legalization of f16 on older targets, and for
bf16. Additionally antique targets need a hardware workaround which
would be better handled in the backend rather than in library code
where it is now.
Caroline Tice [Tue, 27 Jun 2023 07:18:33 +0000 (00:18 -0700)]
[LLDB] Fix buffer overflow problem in DWARFExpression::Evaluate.
In two calls to ReadMemory in DWARFExpression.cpp, the buffer size
passed to ReadMemory is not actually the size of the buffer (I suspect
a copy/paste error where the variable name was not properly
updated). This caused a buffer overflow bug, which we found throuth
Address Sanitizer. This patch fixes the problem by passing the
correct buffer size to the calls to ReadMemory (and to the
DataExtractor).
Differential Revision: https://reviews.llvm.org/D153840
Nikolas Klauser [Wed, 28 Jun 2023 18:22:11 +0000 (11:22 -0700)]
[libc++] Add missing _LIBCPP_HIDE_FROM_ABI in uninitialized_buffer.h
Tue Ly [Sat, 24 Jun 2023 04:08:31 +0000 (00:08 -0400)]
[libc][math] Implement erff function correctly rounded to all rounding modes.
Implement correctly rounded `erff` functions.
For `x >= 4`, `erff(x) = 1` for `FE_TONEAREST` or `FE_UPWARD`, `0x1.ffffep-1` for `FE_DOWNWARD` or `FE_TOWARDZERO`.
For `0 <= x < 4`, we divide into 32 sub-intervals of length `1/8`, and use a degree-15 odd polynomial to approximate `erff(x)` in each sub-interval:
```
erff(x) ~ x * (c0 + c1 * x^2 + c2 * x^4 + ... + c7 * x^14).
```
For `x < 0`, we can use the same formula as above, since the odd part is factored out.
Performance tested with `perf.sh` tool from the CORE-MATH project on AMD Ryzen 9 5900X:
Reciprocal throughput (clock cycles / op)
```
$ ./perf.sh erff --path2
GNU libc version: 2.35
GNU libc release: stable
-- CORE-MATH reciprocal throughput -- with -march=native (with FMA instructions)
[####################] 100 %
Ntrial = 20 ; Min = 11.790 + 0.182 clc/call; Median-Min = 0.154 clc/call; Max = 12.255 clc/call;
-- CORE-MATH reciprocal throughput -- with -march=x86-64-v2 (without FMA instructions)
[####################] 100 %
Ntrial = 20 ; Min = 14.205 + 0.151 clc/call; Median-Min = 0.159 clc/call; Max = 15.893 clc/call;
-- System LIBC reciprocal throughput --
[####################] 100 %
Ntrial = 20 ; Min = 45.519 + 0.445 clc/call; Median-Min = 0.552 clc/call; Max = 46.345 clc/call;
-- LIBC reciprocal throughput -- with -mavx2 -mfma (with FMA instructions)
[####################] 100 %
Ntrial = 20 ; Min = 9.595 + 0.214 clc/call; Median-Min = 0.220 clc/call; Max = 9.887 clc/call;
-- LIBC reciprocal throughput -- with -msse4.2 (without FMA instructions)
[####################] 100 %
Ntrial = 20 ; Min = 10.223 + 0.190 clc/call; Median-Min = 0.222 clc/call; Max = 10.474 clc/call;
```
and latency (clock cycles / op):
```
$ ./perf.sh erff --path2
GNU libc version: 2.35
GNU libc release: stable
-- CORE-MATH latency -- with -march=native (with FMA instructions)
[####################] 100 %
Ntrial = 20 ; Min = 38.566 + 0.391 clc/call; Median-Min = 0.503 clc/call; Max = 39.170 clc/call;
-- CORE-MATH latency -- with -march=x86-64-v2 (without FMA instructions)
[####################] 100 %
Ntrial = 20 ; Min = 43.223 + 0.667 clc/call; Median-Min = 0.680 clc/call; Max = 43.913 clc/call;
-- System LIBC latency --
[####################] 100 %
Ntrial = 20 ; Min = 111.613 + 1.267 clc/call; Median-Min = 1.696 clc/call; Max = 113.444 clc/call;
-- LIBC latency -- with -mavx2 -mfma (with FMA instructions)
[####################] 100 %
Ntrial = 20 ; Min = 40.138 + 0.410 clc/call; Median-Min = 0.536 clc/call; Max = 40.729 clc/call;
-- LIBC latency -- with -msse4.2 (without FMA instructions)
[####################] 100 %
Ntrial = 20 ; Min = 44.858 + 0.872 clc/call; Median-Min = 0.814 clc/call; Max = 46.019 clc/call;
```
Reviewed By: michaelrj
Differential Revision: https://reviews.llvm.org/D153683
Daniel Thornburgh [Fri, 23 Jun 2023 22:24:48 +0000 (15:24 -0700)]
[Symbolizer] Ignore unknown additional symbolizer markup fields
The symbolizer markup syntax is structured such that fields require only
previous fields for their interpretation; this was originally intended
to make adding new fields a natural extension mechanism for existing
elements. This codifies this into the spec and makes the behavior of the
llvm-symbolizer match. Extra fields are now warned about, but ignored,
rather than ignoring the whole element.
Reviewed By: mcgrathr
Differential Revision: https://reviews.llvm.org/D153821
Jon Roelofs [Mon, 26 Jun 2023 17:31:57 +0000 (10:31 -0700)]
[MachineInst] Bump NumOperands back up to 24bits
In https://reviews.llvm.org/D149445, it was lowered from 32 to 16bits, which
broke an internal project of ours. The relevant code being compiled is a fairly
large nested switch that results in a PHI node with 65k+ operands, which can't
easily be turned into a table for perf reasons.
This change unifies `NumOperands`, `Flags`, and `AsmPrinterFlags` into a packed
7-byte struct, which `CapOperands` can follow as the 8th byte, rounding it up
to a nice alignment before the `Info` field.
rdar://
111217742&
109362033
Differential revision: https://reviews.llvm.org/D153791