[libc++][NFC] Removed duplicated `_LIBCPP_INTRODUCED_IN_LLVM_23` macros (#210602)
Removed the redundant macros, which apparently were added by two
different patches.
[ConstraintElim] LSHR x, n <= x when n< bitwidth (#209583)
A logical right shift never increases an unsigned value:
for %r = lshr %x, %n, add the fact %r u<= %x when LSHR is not poison.
This extends the existing udiv/urem fact modeling to lshr.
https://alive2.llvm.org/ce/z/RUTMwe proof shown with constant value <
bit size
flnews-snapshot: Update to 1.4.0pre1
Bug fixes:
- FILTER: Reset pointer to wildmat pattern linked list for every group.
Formerly a nontrivial wildmat could only match the first group of a
group list.
- FILTER: Use result if the wildmat of a score rule has matched a group.
Formerly the further processing of a group list could reset the match.
New features and improvements:
- FILTER: Section SCORING in man page updated.
- Title of man page now follows convention to use only capital letters.
[lldb][NFC] Remove various Stream::Printf calls with constants (#210294)
`Stream::Printf` needs to call various other (variadic) functions, needs
to parse the input string and potentially handle too-long format
outputs. Calling in with a constant string is wasting a lot of
instruction on doing nothing.
assisted-by: claude
TableGen: Parenthesize negated predicate-dag leaves with operators
Allows writing more general expressions in the predicate code. Previously
not ("a == b") would be emitted as !a == b.
Co-authored-by: Claude (Claude-Opus-4.8) <noreply at anthropic.com>
RuntimeLibcalls: Rename RuntimeLibcallPredicate to RuntimeLibcallAvailability
Rename to avoid confusing partial name collisions in future changes.
Co-authored-by: Claude (Claude-Opus-4.8) <noreply at anthropic.com>
RuntimeLibcalls: Reuse AssemblerPredicate's operators for libcalls
Allow specifying RuntimeLibcall's availability in terms of individual
triple properties composed with logical operators.
Co-authored-by: Claude (Claude-Opus-4.8) <noreply at anthropic.com>
Stop a VM before destroying its backing zvols on delete
Deleting a VM with `zvols=true` tore down the backing zvols before stopping the domain, so ZFS could be pulled out from under a live qemu process — risking in-flight corruption and leaving zvols that fail to destroy with EBUSY. The `force` option also didn't really gate deleting a running VM despite what its description implied.
Reject deleting an active (running/suspended) VM unless `force` is set, and stop/undefine the domain before touching its zvols so the block devices are released first; the `force` field description now matches that behaviour. Picked up a few smaller VM-plugin tidy-ups along the way: clone rollback unwinds the snapshots/clones (and half-created VM record) it made if something fails partway, the disk-convert guard treats suspended VMs like running ones, and the convert path check looks at the real destination directory rather than its parent — with unit tests for the convert checks.
Pull up following revision(s) (requested by kre in ticket #389):
usr.bin/xinstall/xinstall.c: revision 1.131
PR bin/58577 - install(1) -d issues
Fix issues where "install -d" (with no directory) simply
exit(0)s. That one is kind of marginal, installing nothing
when nothing is needed could be treated as OK, but the man
page does indicate in the SYNOPSIS that with -d, at least
one directory is needed (it says nothing at all about that
in the text).
Second, after creating a directory, if a later operation
(chown, chmod) fails, that is not success, a warning was
issued (good), a bad metalog was being created (bad).
That is clearly a bug (though probably doesn't happen
very often).
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[lldb][AArch64][Linux][NFC] Move RegisterSetType enum into header (#207145)
I will be using this later to replace all the register specific
functions this class has (WriteSVE/ReadSVE and so on) with single
functions that use RegisterSetType to decide what to do.
While I'm here, I've made some sizeof and casts use RegisterSetType in
case the underlying type changes later.
Pull up following revision(s) (requested by kre in ticket #388):
lib/libc/locale/runetable.c: revision 1.30
lib/libc/locale/iswctype_mb.c: revision 1.15
PR lib/59067 (wctrans got error member)
Patches from the OP (ru_j217) and from RVP - see the PR
This looks to be just correcting what appear to be simple
errors in the code.
[RISCV][P-ext] Generalize lowerVECTOR_SHUFFLEAsRV32PNarrowingShift (#210522)
The previous implementation only matches
`shuffle(extract_subvector(src), extract_subvector(src), mask)`.
This patch generalizes it to `shuffle(a, b, mask)`, so we can now lower
it to `PNSRL(concat(a,b), element_bits)` if it is a deinterleave
shuffle. And we use `foldConcatVector` to handle the original pattern
with `extract_subvector`.
[GVN] Remove the "private" `llvm::gvn` namespace (NFC) (#210323)
Move `AvailableValue` and `AvailableValueInBlock` into GVNPass, similar
to other helper types.
Retain `llvm::gvn::GVNLegacyPass` as just `llvm::GVNLegacyPass` -
"legacy" is already a sufficent hint and it is not going to become more
"private" by stacking "gvn" prefixes to the name.
Ideally, `GVNLegacyPass` should be defined in an anonymous namespace,
but that is not possible because it is declared as a friend of GVNPass.
[LSROA] Add logical SROA pass (#192058)
This commit adds a logical-pointer compatible SROA pass. As-is, the pass
does not optimizes nested structs, arrays, or usages of structured
alloca with non-structured GEP instructions.
Adding support for both is not complex, but increase the size of the PR,
hence we can start with this.
Next step will be to allow mem2reg to apply on logical alloca/ptr, and
to add support for nesting/arrays.
---------
Co-authored-by: Nikita Popov <npopov at redhat.com>
[lldb][docs] Remove image links from trace doc (#210664)
The document was first added in https://reviews.llvm.org/D105741 but
that did not include the images (they were not in the RFC or discussions
either).
[Driver,FreeBSD] Fix -pie for -r and -no-pie links (#210663)
Port Gnu.cpp changes ae623d16d50c and cac82e26c642 to FreeBSD and
Serenity: -r should suppress -pie. -nopie, OpenBSD specific, should not
be used by other OSes.
Group the options selecting the link mode and place them after -m, as
gnutools::Linker does, so that -r suppresses -export-dynamic and
--hash-style as well, and -no-pie overrides the -fsanitize PIE default.
Drop --enable-new-dtags: default in modern linkers.
Change -Bstatic to -static to follow Gnu.cpp (identical in lld and older
GNU ld).
Reapply "[libc++][NFC] Inline std::function members into the class body" (#209555) (#210260)
This caused LLDB to fail, which has been fixed now.
This reverts commit 7618426138aae95561da676a1d1e10ee0392bf78.
[ConstraintSys] Solve sub-system with variables needed for query (#210432)
Update ConstraintSystem to only solve the sub-system containing all
variables relevant to a given query.
The sub-system contains the transitive closure of all variables in rows
involving the variables in the constraint to prove.
The iterative collection loop only needs very few iterations to
complete. The pruned system can significantly speed up Fourier–Motzkin
elimination and reduce the cost of copying the system.
This helps to notably decrease compile-time in cases when there are
larger numbers of variables & rows (especially during (Thin)LTO).
Highlights include
* stage1-ReleaseThinLTO: -0.16%
* stage1-ReleaseLTO-g: -0.19%
* stage1-aarch64-O3: -0.04%
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