[libc] Build fuzzing tests in pre-merge CI tests
At the moment, no CI job tests whether the fuzzing tests build
correctly.
This patch adds the build of fuzzing tests to the pre-merge CI job.
[LifetimeSafety] Extract Sema helper implementation to separate header (#186492)
Improves code organization by separating lifetime safety Sema-specific
functionality into its own header file.
[libc] Fix build failures in fuzzing tests (#185017)
The tests:
- __support/freelist_heap_fuzz.cpp
- fuzzing/string/strlen_fuzz.cpp
had build failures for different reasons. This patch fixes these
failures.
freelist_heap_fuzz.cpp had this error:
```
llvm-project/libc/fuzzing/__support/freelist_heap_fuzz.cpp:150:26: error: use of undeclared identifier 'Block'; did you mean '__llvm_libc_23_0_0_git::Block'?
150 | size_t alignment = Block::MIN_ALIGN;
| ^~~~~
| __llvm_libc_23_0_0_git::Block
```
The issue stems from the fact that Block was not available in scope. It
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[flang][OpenMP] Implement nest depth calculation in LoopSequence (#186477)
Calculate two depths, a semantic one and a perfect one. The former is
the depth of a loop nest taking into account any loop- or
sequence-transforming OpenMP constructs. The latter is the maximum level
to which the semantic nest is a perfect nest.
Issue: https://github.com/llvm/llvm-project/issues/185287
Reinstate PR185298 after a fix has been merged in PR186416. Includes a
testcase that triggered failures before.
[X86] Blocklist instructions that are unsafe for masked-load folding. (#178888)
This PR blocklist instructions that are unsafe for masked-load folding.
Folding with the same mask is only safe if every active destination
element reads only from source elements that are also active under the
same mask. These instructions perform element rearrangement or
broadcasting, which may cause active destination elements to read from
masked-off source elements.
VPERMILPD and VPERMILPS are safe only in the rrk form, the rik form
needs to be blocklisted. In the rrk form, the masked source operand is a
control mask, while in the rik form the masked source operand is the
data/value. This is also why VPSHUFB is safe to fold, while other
shuffles such as VSHUFPS are not.
Examples:
```
EVEX.128.66.0F.WIG 67 /r VPACKUSWB xmm1{k1}{z}, xmm2, xmm3/m128
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[flang][NFC] Converted five tests from old lowering to new lowering (part 31) (#186299)
Tests converted from test/Lower/Intrinsics: iall.f90, iand.f90,
iany.f90, ibclr.f90, ibits.f90
[AMDGPU] Simplify state clearing in SIInsertWaitcnts. NFC. (#186399)
There is no need to clear state at the start or end of the run method,
because a fresh instance of SIInsertWaitcnts is constructed for each run
on a MachineFunction.
[AMDGPU] Initialize more fields in the SIInsertWaitcnts constructor. NFC. (#186394)
ST, TII, TRI and MRI can all be initialized in the constructor and hence
be references instead of pointers.
[orc-rt] Add Controller Interface (CI) symbol table to Session. (#186747)
The Controller Interface is the extended set of symbols (mostly wrapper
functions) that the controller can call prior to loading any JIT'd code.
It is expected that it will be used to inspect the process and create /
configure services to enable JITing.
[lldb-dap] Mark return value as readonly (#186329)
Marked return value as readonly to give VS Code a hint that this
variable doesn't support `setVariable` request.
[C++20] [Modules] Don't add discardable variables to module initializers (#186752)
Close https://github.com/llvm/llvm-project/issues/170099
The root cause of the problem is, we shouldn't add the inline variable
(which is discardable in linker's point of view) to the module's
initializers.
I verified with GCC's generated code to make the behavior consistent.
This is also a small optimization by the way.
[ARM] Try to lower sign bit SELECT_CC to shift (#186349)
Lower a `x < 0 ? 1 : 0` style SELECT_CC to `x>>(bw-1)`. This will become
more important with an upcoming change, but also appears to be somewhat
useful by itself.
[clang-tidy] Fix an edge case in readability-implicit-bool-conversion (#186234)
Fix a FP for condition expressions wrapped by `ExprWithCleanups`.
Co-authored-by: EugeneZelenko <eugene.zelenko at gmail.com>
Co-authored-by: Zeyi Xu <zeyi2 at nekoarch.cc>
[mlir][linalg] Use inferConvolutionDims for generic convolution downscaling (#180586)
The goal of this PR is to implement a generic, structure-aware
convolution downscaling transformation that works for any
convolution-like operation regardless of its specific layout or naming,
rather than relying on pattern-matching against specific named
operations.
Each pattern we currently have, have hardcoded dimension indices
specific to its layout (e.g., NHWC vs NCHW).
This approach :-
1. Requires maintaining many similar patterns.
2. Is brittle when new layouts are introduced.
3. Cannot handle batchless versions of the conv variants.
This PR thus creates a single downscaleSizeOneWindowedConvolution
function that uses `inferConvolutionDims` to semantically understand the
convolution structure (batch dims, output image dims, filter loop dims,
etc.) rather than hardcoding indices.
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[Clang] Dump noexcept expression in compound requirement AST dumps
When a compound requirement has a noexcept(expr) specification, the
expression is now visited as a child node in AST dumps. The text dumper
also shows "noexcept(expr)" instead of just "noexcept" to indicate the
presence of the expression.
