[InstCombine] Fold extraction of low integer bits from scalar FP
A scalar FP bitcast to an integer vector followed by extraction of its
least-significant element can use a scalar integer bitcast and truncation.
For example, extracting element zero of a float-to-<32 x i1> bitcast on a
little-endian target becomes a float-to-i32 bitcast followed by truncation
to i1. This avoids making vector legalization reconstruct an existing
scalar bit projection. A one-element vector needs only the scalar bitcast.
Extend foldBitcastExtElt for this case. Require the vector bitcast to have
one use, an integer result, and no shift after accounting for endianness.
A newly introduced source-width integer must be desirable under DataLayout
to avoid wide scalar intermediates that regress codegen. Preserve the
existing integer-source shift restrictions.
The fold reinterprets bits without FP arithmetic, preserves operand-use
count, and does not look through freeze. Update the baseline test checks.
Alive2 proof of the motivating little-endian float-to-i1 case, with poison
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[InstCombine][NFC] Add tests for extracting integer bits from scalar FP
Add coverage for scalar FP-to-integer-vector bitcasts followed by constant
element extraction, including the float-to-<32 x i1> case. Capture existing
behavior for both endiannesses and different legal integer widths, with
one-element, multiple-use, variable-index, FP-result, poison, out-of-range,
and freeze cases.
Generate checks with the unmodified compiler. All eight RUN configurations
pass before adding the scalar FP extraction fold.
dtrace/arm64: Fix copyout and copyoutstr
Calling dtrace_copy and dtrace_copystr with the kaddr and uaddr
arguments inversed does not work with PAN. Rename them
dtrace_copyin_pan and dtrace_copyinstr_pan, respectively, and
implement dtrace_copyout_pan and dtrace_copyoutstr_pan.
Avoid excessive faulting by checkin DTrace's CPU flags. Implement the
trick from OpenSolaris/Illumos of only checking the flags when
crossing into a new page, altough more effectively by examining the
vaddr instead of the count.
Reviewed by: markj
MFC after: 3 weeks
Differential Revision: https://reviews.freebsd.org/D59449
Add MODMARIADB_DEFAULTS_FILE to mariadb module
The default sets innodb_buffer_pool_size_max=512m because otherwise
none of the modules that try to use it for tests work as they want
to allocate enough memory to run an LLM.
While here, give mariadb a bit more time to start,
my machine is apparently slow.
OK Brad Smith <brad () comstyle ! com> (MAINTAINER)
[clang][Driver] Use the bare-metal toolchain for LoongArch (#223703)
Clang did not handle loongarch32-\*-none-elf and loongarch64-\*-none-elf
in the
bare-metal toolchain, so these targets fell back to the generic ELF
toolchain,
which links by running gcc. Any -fuse-ld or --ld-path option is
forwarded to
gcc, and linking fails when there is no gcc. On a host whose gcc does
not target
LoongArch, which is the usual case when cross compiling, gcc drives the
linker
for the host, and the link fails with errors such as "a.o is
incompatible with
elf_x86_64". The generic ELF toolchain also searches /usr/local/include
and
/usr/include of the host.
The other bare-metal targets, Arm, AArch64, RISC-V, PowerPC, and x86
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[M68k][NetBSD] Fix alignments for NetBSD/m68k. (#207602)
Linux/m68k uses the ABI from Sun Microsystems for a.out on m68k, which
aligns ints/objects/pointers/stack on 16-bit boundaries.
NetBSD/m68k on the other hand uses the ABI from SVR4 for m68k, which
aligns ints/objects/pointers/stack on 32-bit boundaries.
This is a follow-up of
https://github.com/M680x0/issues/issues/13
[CIR] Match the parameter spill shape instead of asserting it
Return null from findParamSpill when a non-byval indirect parameter's
only use is not a store into an alloca it names directly, instead of
asserting that shape. Both callers already handled a null result, so
an unmatched parameter now reaches the diagnostic the forwarding call
already has for an operand that does not name the caller's storage.
Assisted-by: Cursor / claude-opus-5
[AMDGPU] Add LDS encoding granularity to TargetParser
Model LDS encoding granularity with dedicated features and expose the
byte-valued getLDSEncodingGranule query for GPUKind and subarch. Keep
encoding independent of the hardware allocation granularity used for
occupancy; GFX10.3, GFX11 and GFX12.0 encode in 512-byte units while
allocating 1024-byte blocks.
Migrate program resource register and PAL metadata encoding to the new
query and remove getLdsDwGranularity from AMDGPUBaseInfo. gfx9-4-generic
uses gfx950's 1280-byte encoding granule independently of LDS capacity.
Test encoding queries, feature membership, generic-target validation and
encoded LDS sizes, including the GFX10.3 allocation/encoding distinction.
Change-Id: I9d3c2c041605e9a45fa8fbda09fc3460a74953ea
[AMDGPU] Return zero LDS encoding granularity for dummy targets
Remove the redundant early return and assertion from getLDSEncodingGranule. Return zero when the target has no encoding granularity feature, and document and test the result for unknown and legacy generic targets.
Keep the existing 256-byte default in the assembly printer so compiling without a GPU still produces valid LDS sizes. Test default-target Mesa and PAL encodings and HSA metadata.
Change-Id: Ia0c69a0d7ce2858b31ee64100d37ae34bba6c42c
[AMDGPU] Add partial unroll threshold function attribute (#223291)
This change adds an `amdgpu-partial-unroll-threshold` function attribute
for controlling
`TargetTransformInfo::UnrollingPreferences::PartialThreshold` on a
per-function basis.
The existing `amdgpu-unroll-threshold` function attribute initializes
`UP.Threshold`, which is used for decisions about full
unrolling. However, there is currently no corresponding AMDGPU function
attribute for configuring `UP.PartialThreshold`
independently. As a result, clients of the AMDGPU backend cannot provide
an independent per-function cost threshold for partial and runtime
unrolling.
When present, the new attribute sets the base value of
`UP.PartialThreshold` for loops in that function. This allows the cost
threshold for partial and runtime unrolling to be configured
independently of the threshold used for full unrolling. Functions that
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relayd-regress: rewirte TLS tests with new keypair syntax
- TLS and non-TLS tests are handled differently now.
- Provide a CERTBASE environment for each TLS test which points to the
cert/key to test.
- The single ECDSA test has been removed, as all TLS tests are now run
separately using RSA and ECDSA certificates.
- Makefile tweaks: renamed vars and format
go ahead, bluhm@
Update p5-DBIx-Class-Schema-Loader to 0.07053
With the caveat that there is a mariadb bug that causes a crash
when running the test suite.
https://jira.mariadb.org/browse/MDEV-41221
[VPlan] Add VPBlockUtils::replaceSuccessor helper (NFC). (#224970)
Add a helper to redirect a single edge, keeping the successor order and
updating the predecessor links of both the old and new successor. Use it
in insertBlockBefore.
