[asan] Convert __SANITIZER_DISABLE_CONTAINER_OVERFLOW__ tests to C (#188406)
As-is tests do not pass on android with older C++ headers.
There is nothing C++ specific in tests.
Followup to #181721.
[Clang] define memory scopes as a builtin enum
Clang currently represents memory scopes as pre-defined preprocessor macros that
evaluate to integers. But so far, there are three sets of conflicting scopes:
"common" clang scopes, HIP scopes and OpenCL scopes. These sets use the same
integers in different orders, making it impossible to validate their use. A
better approach is to represent these scopes as enum types, so that the integer
values become less significant. Sema can now validate the scope argument by its
type instead.
Both C and C++ define an enum for memory_order, but there is no standard enum
for memory_scope. This change introduces a Clang-specific enum "memory_scope".
The pre-defined macros are now mapped to this enum. Later changes can add
similar enums for other languages.
enum __memory_scope {
__memory_scope_system,
__memory_scope_device,
__memory_scope_workgroup,
[19 lines not shown]
[ELF] Guard relocation section handling behind copyRelocs in addOrphanSections. NFC (#188409)
In addOrphanSections, getRelocatedSection() only returns non-null for -r
or --emit-relocs links. Guard code blocks with `copyRelocs` to skip
unnecessary dyn_cast + getRelocatedSection calls per section in the
common case. Hoist copyRelocs and relocatable to local variables so the
compiler does not reload them through ctx on every loop iteration.
"Assign sections" decreases by 1ms.
[Flang][OpenMP] Remove dead restoreIP in OpenMP taskloop lowering (#187222)
This fixes an intermittent crash in `OpenMP` taskloop lowering.
In `OMPIRBuilder::createTaskloop`, the `restoreIP` in `PostOutlineCB`
was immediately overwritten by the following
`Builder.SetInsertPoint(StaleCI)` with no instructions created in
between, so it was effectively dead. This patch removes that dead
restore, which is the smallest change and preserves the intended IR
placement.
Adds a regression test that compiles a taskloop to LLVM IR and verifies
the bounds casts and __kmpc_taskloop call are present.
[flang-rt] Fix macOS build: define _DARWIN_C_SOURCE for mmap flags (#186142)
On Darwin, `sys/mman.h` hides `MAP_JIT` and `MAP_ANON(YMOUS)` when
`_POSIX_C_SOURCE` is defined unless `_DARWIN_C_SOURCE` is also defined.
`trampoline.cpp` uses those flags, so this change defines
`_DARWIN_C_SOURCE` before including `<sys/mman.h>` in this file.
Fixes build failure reported in #183108.
Co-authored-by: Sairudra More <moresair at pe31.hpc.amslabs.hpecorp.net>
fix build by not trying to statically link sdl3
libSDL3.a does not exist but meson still tries to statically link
everything in the Requires.private part of the sdl3.pc pkgconfig file.
In the case of gbm libgbm.a had unresolved symbols.
build failure reported by tb@ who tracked this back to a change in the
devel/sdl3 port to build with -DSDL_DEPS_SHARED=OFF
ok tb@
[libc++] Remove non-standard member type iterator_type from __wrap_iter (#186871)
Resolves #186801
Removed the non-standard member type `iterator_type` from `__wrap_iter`.
This member exposed the underlying iterator type, and its removal
prevents users from relying on the implementation detail.
[mlir][memref] Simplify expand_shape size/stride computation using output_shape (#187844)
This PR refactors `getExpandedSizes` and `getExpandedStrides` to compute
their results directly from the `output_shape` of `memref.expand_shape`.
Instead of reconstructing expanded sizes/strides through manual
inference, we now rely on the operation’s explicit shape information.
The previous implementation imposed the restriction that there must be
at most one dynamic size per reassociation group. This limitation is
removed by the new approach: any number of dynamic dimensions within a
group is now supported, as long as they are represented in the
`output_shape`.
As a result, the code becomes both simpler and more expressive, while
better matching the semantics of `memref.expand_shape`.
[CoroSplit] Never collect allocas used by catchpad into frame (#186728)
Windows EH requires exception objects allocated on stack. But there is
no reliable way to identify them. CoroSplit employs a best-effort
algorithm to determine whether allocas persist on the stack or the
frame, which may result in miscompilation when Windows exceptions are
used.
This patch proposes that we treat allocas used by catchpad as exception
objects and never place them on the frame. A verifier check is added to
enforce that operands of catchpad are either constants or allocas.
Close #143235 Close #153949 Close #182584
[ORC] EPCGenericJITLinkMemoryManager from SimpleNativeMemoryMap syms. (#188391)
Adds a new EPCGenericJITLinkMemoryManager convenience constructor that
constructs an instance by looking up the given symbol names in the
bootstrap JITDylib of the given ExecutionSession.
The symbol names default to the SimpleNativeMemoryMap SPS-interface
symbol names provided by the new ORC runtime.
stand: Force disable RETPOLINE for boot loaders
Boot loaders do not require speculative execution protection, and may be
too large if enabled.
Reported by: Shawn Webb
Reviewed by: dim, imp
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D56068
kern/amd64/machdep: Replace memset in wrmsr_early_safe_end
GENERIC-KASAN kernel failed to boot on a Dell PowerEdge C6615 with
an AMD EPYC 8224P CPU; UEFI BIOS caught a #GP exception with %RIP
in kasan_memset where %GS relative pointer (curthread->td_pflags2)
was dereferenced. Investigation led to wrmsr_early_safe_end which
calls memset to clear early #GP IDT entry. Replacing memset with
__builtin_memset_inline still resulted in the compiler emitting a
call to the memset resolver in GENERIC-KASAN build and the kernel
stil faulted during boot. This version which has been successfully
tested with both GENERIC and GENERIC-KASAN kernels uses memset_early.
Signed-off-by: Kristofer Peterson <kris at tranception.com>
Reviewed-by: kib
Pull-Request: https://github.com/freebsd/freebsd-src/pull/2069
