[X86] LowerBUILD_VECTORvXi1 - attempt to fold as VPTESTMB(BUILD_VECTOR_vXi8(X),1) (#198166)
i1 scalar elements will be legalised to i8 (and the BUILD_VECTOR relies
on implicit truncation) - but it will often be cheaper to perform the
BUILD_VECTOR as a vXi8 and then perform a comparison to convert to the
vXi1 mask, assuming we're inserting more than one non-constant i1
element.
Without BWI we have to extend this to vXi32 types to perform the
comparison.
There's probably a lot we can do here (v2i8/v4i8/v8i8 types), but this
patch at least addresses the worst codegen cases.
Fixes #179334
efirt - Register EFI Reset with the shutdown_final EVENTHANDLER.
- This adds a safeguard to efi_enter() to fail gracefully when called from
a kernel thread, where curthread->td_lwp is NULL.
- Further work is needed to allow EFI Reset to work more simply without
messing with the current LWP's vmspace.
ddb - Try AcpiReset() when invoking DDB's reset command.
- This allows some modern notebooks to successfully reset from DDB, where
the classic outb(0x64, 0xFE) method no longer works. For some notebooks,
we'll also need to support EFI Reset here, but that will require further
work.
[PowerPC] Fix i128 vcmpequb optimization for loads with range metadata and small constants (#196801)
The combine introduced in 55aff64d2c6ef50d2ed725d7dd1fb34080486237
lowers scalar i128 compares into vector compares by reissuing the
original loads as v16i8 loads. However, the combine was reusing the
original MachineMemOperand without modification.
If the original i128 load carries !range metadata, the MMO encodes that
range using i128 values. Reusing this MMO for a v16i8 load is incorrect
as range metadata is only valid for integer scalar types and its
bitwidth must match the memory VT.
This patch fixes this by creating a new MachineMemOperand for the vector
vector load. Additionally, we restrict the combine for constant operands
to avoid cases that are better handled by scalar lowering. Small
constants (fit within 16 bits) are excluded to prevent generating
suboptimal vector compares.
Add a five second limit on pasting for terminals which mysteriously lose
the end sequence if the paste is too big (that is, Terminal.app).
Reported by Garri Djavadyan in GitHub issue 4527.
linuxulator: fix SO_PEERCRED emulation after 1d24638d3e8
For Linux binaries, sopt->sopt_td may be null. And there's also no
need to check it, since struct l_ucred has the same layout on 32-bit
systems as on 64-bit ones.
PR: 295333
Reported by: Miguel Gomes <miguel.dias.gomes at protonmail.com>
Fixes: 1d24638d3e8 ("Fix LOCAL_PEERCRED in 32-bit compat mode")
MFC after: 3 days
Reviewed by: emaste
Differential Revision: https://reviews.freebsd.org/D57032
u4b: Sync usb_msctest.[ch] with FreeBSD
Most changes are auto quirk detection and application. However, the
previous commit disabled such auto quirks, so this commit should have no
functional change.
u4b: Make autoquirk code optional and opt out
As the FreeBSD described:
> There are significant problems with the current autoquirk code. This
> results in quite a bit of bogus over-quirking.
> ...
> For all these reasons, I'm turning this off and will likely remove it
> entirely in the future once the alternative SYNC CACHE code has
> provent itself.
Actually, this fixes the USB stick probing timeout error in a USB 3.0
port on my HPE MicroServer Gen10. That timeout error happened during
the boot and would drop the system to the 'mountroot>' prompt:
```
CAM: Configuring bus: ahci0
CAM: Configuring bus: ahci0
CAM: Configuring bus: ahci0
CAM: Configuring bus: ahci0
[56 lines not shown]
[SLP] Enable full non-power-of-2 vectorization by default
Default slp-vectorize-non-power-of-2 to true and broaden the set of
supported widths beyond NumElts + 1 == bit_ceil(NumElts) to include
small widths (<= 5), widths where NumElts - 1 is also non-power of two
(e.g. 6, 7, 10..15), and any width when the elements being vectorized
are themselves vectors (REVEC). Tweak gathered loads, stores, and
reduction support to the non-power-of-2 vector factors.
Reviewers: hiraditya, bababuck, RKSimon
Pull Request: https://github.com/llvm/llvm-project/pull/196825
usr.sbin/httpd: add cache controls for static files
Teach httpd to advertise static file revalidation by default with
Cache-Control: no-cache, preserving the existing Last-Modified and
If-Modified-Since flow; add a [no] static-cache-control directive for
opting out, and advertise Vary: Accept-Encoding whenever gzip-static is
enabled.
OK: claudio@
Add new-pane command, currently this is equivalent to split-window but
it will have minor differences for floating panes in future. Also add
-R/-s/-S/-k/-m flags to control border and style and behaviour, like
popups. GitHub issue 5027 from Dane Jensen.
ipfw: treat ipv6 address with zero mask as 'any'
Make the behaviour similar for both IPv4 and IPv6. Also add
the corresponding tests.
PR: 294733
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D56618
