This patch adds an msan interceptor for dladdr1 (with support
for RTLD_DL_LINKMAP and RTLD_DL_SYMENT) and an accompanying
test. It also adds a helper file, msan_dl.cpp, that contains
UnpoisonDllAddrInfo (refactored out of the dladdr interceptor)
and UnpoisonDllAddr1ExtraInfo.
Differential Revision: https://reviews.llvm.org/D154272
Fixed issue with the comparison of UnaryExprOrTypeTraitExpr
objects in which only the argument type was checked, without
considering the kind of expression. This led to false positives when
using sizeof(x) and alignof(x) expressions, as only the
comparison x = x was performed without checking if sizeof
was equal to alignof.
Fixes: https://github.com/llvm/llvm-project/issues/63096
Reviewed By: Izaron
Differential Revision: https://reviews.llvm.org/D152713
Work on the missing chrono parts has started, but their operators will
be added in different patches. So split the remaining chrono part to one
entry per line and mark them in progress.
These tests were disabled during constant evaluation in D90569. At that
time constexpr string was not implemented. It now is.
Reviewed By: #libc, philnik
Differential Revision: https://reviews.llvm.org/D154227
Remove incorrect use of double colons so that the code blocks are
rendered correctly to HTML.
Wrap the name of another check in single backticks. Wrap the name of a
macro in double backticks.
Explain that with the default settings the check is only enabled with
C++23 or later standards.
Correct std::string_data() to std::string::data().
Reviewed By: PiotrZSL
Differential Revision: https://reviews.llvm.org/D154151
D150464 updated the cost model for function specialization. Unfortunately, this
also crashes when trying to build stage2 LLD with thinLTO and assertions. It looks
like the issue is caused by a mishandling of the Constant in a SwitchInst since the
Constant cannot always be assumed to safely casted to a ConstantInt. In the case
of the crash, Constant was a ConstantExpr which triggered the assertion.
Reviewed By: ChuanqiXu
Differential Revision: https://reviews.llvm.org/D154159
Conventionally, parsing methods return false on success and true on
error. However, directive parsing methods need a third state: the
directive is not target specific. AsmParser::parseStatement detected
this case by using a fragile heuristic: if the target parser did not
consume any tokens, the directive is assumed to be not target-specific.
Some targets fail to follow the convention: they return success after
emitting an error or do not consume the entire line and return failure
on successful parsing. This was partially worked around by checking for
pending errors in parseStatement.
This patch tries to improve the situation by introducing parseDirective
method that returns ParseStatus -- three-state class. The new method
should eventually replace the old one returning bool.
ParseStatus is intentionally implicitly constructible from bool to allow
uses like `return Error(Loc, "message")`. It also has a potential to
replace OperandMatchResulTy as it is more convenient to use due to the
implicit construction from bool and more type safe.
Reviewed By: MaskRay
Differential Revision: https://reviews.llvm.org/D154101
On Darwin systems, the dynamic linker dyld has an empty function
it calls when binaries are added/removed from the process. lldb puts
a breakpoint on this dyld function to catch the notifications. The
function arguments are used by lldb to tell what is happening.
The linker has a natural representation when the addresses of
binaries being added/removed are in the pointer size of the process.
There is then a second function where the addresses of the binaries
are in a uint64_t array, which the debugger has been using before -
dyld allocates memory for the array, copies the values in to it,
and calls it for lldb's benefit.
This changes to using the native notifier function, with pointer-sized
addresses.
Differential Revision: https://reviews.llvm.org/D139453
This patch added /dwodir to lld/COFF which is equivalent to lld/ELF
option -plugin-opt=dwo_dir=. This option tells LTO backend to create
dwo directory and files and all dwo files will be in it. Otherwise all
dwarf sections will be embeded into image even if -gsplit-dwarf is
specified when using LTO.
Reviewed By: MaskRay
Differential Revision: https://reviews.llvm.org/D154070
The `formatter` logs include a function name, but these functions are mostly templates
and the template type parameter is not printed, which is useful context.
This change adds a new log which is printed upon entry of `FormatManager::Get`, which
shows the formatter context as either `format`, `summary`, or `synthetic`.
Differential Revision: https://reviews.llvm.org/D154128
Change `ASTUnit::LoadFromCommandLine` to return a `std::unique_ptr` instead of a +1 pointer, fixing a leak in the unit test `LoadFromCommandLineWorkingDirectory`.
Reviewed By: bnbarham, benlangmuir
Differential Revision: https://reviews.llvm.org/D154257
This allows for use of the same solver used by the DAC for additional solving post-analysis and thus shared use of MaxIterations in WatchedLiteralsSolver.
Reviewed By: ymandel, gribozavr2, sammccall
Differential Revision: https://reviews.llvm.org/D153805
(1) uses the previously introduce API to reuse AffineExpr parser without codedup
(2) solves the look-ahead problem when parsing level spec
Reviewed By: Peiming
Differential Revision: https://reviews.llvm.org/D154254
Fix a bunch more instances of incorrect use of the `static`
keyword and missing use of LIBC_INLINE and LIBC_INLINE_VAR
macros. Note that even forward declarations and generic template
declarations must follow the prescribed patterns for libc code so
that they match every definition, all template specializations.
Reviewed By: Caslyn
Differential Revision: https://reviews.llvm.org/D154260
The `RewriteObjCClassReferences` pass was applicable only to the code generated for the
fragile ObjC ABI (v1). That ABI is no longer active (last used for i386 macOS), which
means this pass has no effect.
Sources: `OBJC_CLASS_REFERENCES_` is emitted only by `CGObjCMac`, and not by
`CGObjCNonFragileABIMac`.
Differential Revision: https://reviews.llvm.org/D153802
Partial progress towards replacing uses of CreateElementBitCast, as it
no longer does what its name suggests.
Reviewed By: barannikov88
Differential Revision: https://reviews.llvm.org/D154229
This might simplify frontend implementation by avoiding recomputation for the same value.
Reviewed By: aartbik
Differential Revision: https://reviews.llvm.org/D154244
Implicit narrowing conversions from int to uint16_t
get a compiler warning with the warning settings used
in the Fuchsia build.
Reviewed By: michaelrj
Differential Revision: https://reviews.llvm.org/D154256
requiresScalarEpilogue only checks if the selected VF is vectorizing
(and not scalar). Update it to just take a boolean, to make it clearer
what information is used and to allow callers without a VF (used in a
follow-up patch).
- Also added Tosa_Weight and Tosa_WeightTensorXD specifically for weights
Signed-off-by: Jerry Ge <jerry.ge@arm.com>
Reviewed By: eric-k256
Differential Revision: https://reviews.llvm.org/D153646
Exclude cached blocks with invalid start address. Mainly concerned with
cached blocks that are still available/unused.
Reviewed By: Chia-hungDuan, cferris
Differential Revision: https://reviews.llvm.org/D154148
This adds a simple lit test for dladdr. (There is currently a dladdr testcase in
compiler-rt/lib/msan/tests/msan_test.cpp, but not a stand-alone lit test.)
This is an incremental step towards adding a test case (and, eventually, an interceptor)
for the more complicated dladdr1 function.
Differential Revision: https://reviews.llvm.org/D154255
Some signed opcodes were being lowered to their unsigned counterparts and
vice-versa.
Reviewed By: craig.topper
Differential Revision: https://reviews.llvm.org/D154234
This patch extends the logic for lowering loop construct reductions to parallel block reductions.
Reviewed By: kiranchandramohan
Differential Revision: https://reviews.llvm.org/D154182
Without rpath information, the test fails on some Darwin platforms since the binary fails to find the shared library.
rdar://110010041
Differential Revision: https://reviews.llvm.org/D154003
For OpenMP offload, Clang emits global symbols containing the string
'<captured>', which contains characters that are invalid in PTX.
Extend the existing pass that replaces '.' and '@' characters with
'_$_' to also replace '<' and '>' characters.
Reviewed By: cchen
Differential Revision: https://reviews.llvm.org/D154241
Currently the shm_unlink is never called on the auxiliary memory shared
memory, so it stays around after running llvm-exegesis (including
running the llvm-exegesis tests). This patch adds the auxiliary memory
shared memory name to the SharedMemoryNames list so that it gets
unlinked when the destructor of SubprocessMemory is called.
This reverts commit 20f0c68fd83a0147a8ec1722bd2e848180610288.
https://reviews.llvm.org/D153966#4464594 reports an optimization
regression in Rust.
Additionally this change has caused an unexpected 0.3% compile-time
regression.
This change updates the lowering of `vector.transfer_write` to SCF when
scalable vectors are used. Specifically, when lowering
`vector.transfer_write` to a loop of `vector.extractelement` ops, make
sure that the upper bound of the generated loop is scaled by
`vector.vscale`:
```
%10 = vector.vscale
%11 = arith.muli %10, %c16 : index
scf.for %arg2 = %c0 to %11 step %c1
```
For reference, this is the current version (i.e. before this change):
```
scf.for %arg2 = %c0 to %c16 step %c1
```
Note that this only valid for fixed-width vectors.
Differential Revision: https://reviews.llvm.org/D154226
