[AMDGPU] Add s_sethalt to hasUnwantedEffectsWhenEXECEmpty (#186745)
We don't want to execute s_sethalt when all lanes want to skip it.
Co-authored-by: Junda Liu <Junda.Liu at amd.com>
zfs: reject all mount op flags for now
- our logic in zfs_vfsops.c is inconsistent. sometimes it checks
uap->flags, sometimes vfsp->vfs_flag. (aka mnt_flag)
- our userland tools (zfs, mount_zfs) currently don't seem to have
a way to pass these flags anyway. (zmount in libzfs always passes
0 to both of mount(2) 'flags' argument and 'uap->flags'. although
it stores something in uap->mflag and uap->optptr, nothing uses
them. it doesn't even set MS_OPTIONSTR. we don't implement
MS_OPTIONSTR anyway.)
this commit simply rejects them for safety. as these operations have
never been implemented in NetBSD, it shouldn't have any impact to users.
maybe someday we should fix these, but i guess it involves some
ABI changes, which i'm not in a mood to do right now.
related to PR/60026https://gnats.netbsd.org/60026
uvm_mmap.c: fix overflow check
this is my best guess of the intention of the original code,
where "*addr + *size < *addr" seems always false because "*size" is 0.
[clang] Backport: use canonical arguments for checking function template constraints
Backport from #186889
This is a partial revert of #161671, restoring the original behaviour
where the canonical template arguments are used for function template
constraint checking in diagnostics.
This reverts the fix from #183010, which attempted to fix #182344
but it causes regressions. These regressions now have test cases
included.
The attempt at #183010 is flawed because in the general case we can't
check satisfaction for constraints which have unsubstituted template
arguments, even if they don't affect the canonical type (ie they are
purely
syntactical), because these types can still turn out to be invalid after
substitution.
[20 lines not shown]
[libclc][CMake] Use clang/llvm-ar on Windows (#186726)
When LLVM_TARGETS_TO_BUILD contains host target, runtime build sets
CMAKE_C_COMPILER to clang-cl on Windows.
Changes to fix build on Windows:
- libclc struggles to pass specific flags to clang-cl MSVC-like interface.
- compile flag handling will be consistent across all host systems.
- libclc build is cross-compilation for offloading targets.
[clang] Backport: use canonical arguments for checking function template constraints
Backport from #186889
This is a partial revert of #161671, restoring the original behaviour
where the canonical template arguments are used for function template
constraint checking in diagnostics.
This reverts the fix from #183010, which attempted to fix #182344
but it causes regressions. These regressions now have test cases
included.
The attempt at #183010 is flawed because in the general case we can't
check satisfaction for constraints which have unsubstituted template
arguments, even if they don't affect the canonical type (ie they are
purely
syntactical), because these types can still turn out to be invalid after
substitution.
[20 lines not shown]
[clang] use canonical arguments for checking function template constraints (#186889)
This is a partial revert of #161671, restoring the original behaviour
where the canonical template arguments are used for function template
constraint checking in diagnostics.
This reverts the fix from #183010, which attempted to fix #182344
but it causes regressions. These regressions now have test cases
included.
The attempt at #183010 is flawed because in the general case we can't
check satisfaction for constraints which have unsubstituted template
arguments, even if they don't affect the canonical type (ie they are
purely
syntactical), because these types can still turn out to be invalid after
substitution.
This is a problem when directly evaluating a concept specialization, but
it's not a problem with other template specializations because the
[18 lines not shown]
[ssaf][UnsafeBufferUsage] Add support for extracting unsafe pointers from all kinds of contributors
- Generalize the -Wunsafe-buffer-usage API for finding unsafe pointers in all kinds of Decls
- Add support in SSAF-based UnsafeBufferUsage analysis for extracting from various contributors
- Mock implementation of HandleTranslationUnit
rdar://171735836
[Clang] Fix a concept subsumption bug when template depths are adjusted (#186735)
We cannot reuse the cached normalization results if any template depth
adjustments (in subsumption checking) are involved.
Fixes https://github.com/llvm/llvm-project/issues/186624
[X86] Improve illegal return type handling in FastISel (#186723)
Previously, FastISel would fall back to DAG ISel for any illegal return
type. This change adds a more precise check to determine if the ABI
requires a type conversion that FastISel cannot handle.
For example, bfloat is returned as f16 in XMM0, but FastISel would
assign f32 register type and store it in FuncInfo.ValueMap, causing DAG
to incorrectly perform type conversion from f32 to bfloat later.
However, i1 is promoted to i8 and returned as i8 per the ABI, so
FastISel
can safely lower it without switching to DAGISel. This change enables
FastISel to handle such cases properly.
---------
Co-authored-by: Yuanke Luo <ykluo at birentech.com>
