[SLP] Loop aware cost model/tree building
Currently, SLP vectorizer do not care about loops and their trip count.
It may lead to inefficient vectorization in some cases. Patch adds loop
nest-aware tree building and cost estimation.
When it comes to tree building, it now checks that tree do not span
across different loop nests. The nodes from other loop nests are
immediate buildvector nodes.
The cost model adds the knowledge about loop trip count. If it is
unknown, the default value is used, controlled by the
-slp-cost-loop-min-trip-count=<value> option. The cost of the vector
nodes in the loop is multiplied by the number of iteration (trip count),
because each vector node will be executed the trip count number of
times. This allows better cost estimation.
Reviewers: jdenny-ornl, vporpo, hiraditya, RKSimon
Pull Request: https://github.com/llvm/llvm-project/pull/150450
Recommit after revert in c7bd3062f1dac975cf9b706f457b3c55b4bf57ff
[compiler-rt] Update runtime build script to detect RPC XDR header for AIX (#186977)
`sanitizer_common` and its tests depend on the RPC XDR header for layout
compatibility. When this header is absent from a CI or build
environment, changes that silently break the expected struct layout go
undetected, since there is nothing to fail the build.
The default is opt-in — error on missing header is on by default for AIX
(where the dependency is known and the package is `bos.net.nfs.adt`) and
off by default elsewhere.
Changes:
1. On AIX, checks for `tirpc/rpc/xdr.h`; on all other platforms, checks
for `rpc/xdr.h`
2. Introduces `COMPILER_RT_REQUIRE_RPC_XDR_H` CMake option (default ON
on AIX, OFF elsewhere) that, when set, turns a missing header into a
fatal configuration error with an actionable message
3. Drive-by fix: Normalizes `HAVE_RPC_XDR_H` to 0 when the header is
absent, for consistent downstream `if()/#cmakedefine` behavior
NAS-140346 / 26.0.0-BETA.1 / fix NoRowsWereUpdatedException in zettarepl (#18488)
Commit a08212fc46 (NAS-136213, June 2025) changed datastore.update from
raising RuntimeError('No rows were updated') to raising
`NoRowsWereUpdatedException()`.
The except RuntimeError in flush_state was correct before that commit —
it was specifically catching this "no rows updated" case. But when the
exception type was changed, nobody updated flush_state to match, so it
became a silently broken error handler.
To make matters even more confusing, an unrelated change in master
4b7769149f (NAS-140201) fixed this but because that was a much more
involved change it was never back ported.
wip/mattermost-server -- update to v11.5.1
The package does not currently build on NetBSD because several modules
(see TODO) do not 'build' (whatever that means in golang).
Since I don't Go, I'll punt.
[libc][math] Fix missing underflow exception in DyadicFloat::generic_as (#186734)
The `generic_as` function in `dyadic_float.h` had a missing `underflow =
true` at the exact boundary where `unbiased_exp == -EXP_BIAS -
FRACTION_LEN`.
At this boundary, the mantissa MSB maps exactly to the round bit, so
out_mantissa is 0 and the result can only be 0 or min_subnormal. The
value is at most min_subnormal / 2, so it is always tiny and always
inexact `underflow` must be signaled. The < case and the general
subnormal range both already set underflow = true this boundary case was
the only gap.
this specifically fix this error in the erfcf16 function
```
Extracted erfcf16.cpp.o from archive for linking
Running exhaustive check in --rndn mode...
Missing underflow exception for x=0x1.eacp+1 (y=0x1p-24)
```
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[NewPM] Add port for AArch64DeadRegisterDefinitionsPass (#187180)
Adds a newPM pass for AArch64DeadRegisterDefinitions
* Refactors base logic into an Impl class
* Renames old pass with the "Legacy" suffix
* Adds the new pass manager pass using refactored logic
No existing `.mir` tests to update.
Context and motivation in
https://llvm.org/docs/NewPassManager.html#status-of-the-new-and-legacy-pass-managers
