NAS-139267 / 26.04 / Fix validation for netbios alias change (#18000)
This commit fixes a syntax error when validating netbios alias changes
when directory services are enabled.
[InlineSpiller][AMDGPU] Implement subreg reload during RA spill
Currently, when a virtual register is partially used, the
entire tuple is restored from the spilled location, even if
only a subset of its sub-registers is needed. This patch
introduces support for partial reloads by analyzing actual
register usage and restoring only the required sub-registers.
This improvement enhances register allocation efficiency,
particularly for cases involving tuple virtual registers.
For AMDGPU, this change brings considerable improvements
in workloads that involve matrix operations, large vectors,
and complex control flows.
[AMDGPU] Test precommit for subreg reload
This test currently fails due to insufficient
registers during allocation. Once the subreg
reload is implemented, it will begin to pass
as the partial reload help mitigate register
pressure.
[AMDGPU] Put back ProperlyAlighedRC helper functions
Putting back the functions that are recently deleted
as they were found unused. They are needed for
implementing subreg reload during RA.
[AMDGPU] Introduce Offset field in SGPR spill Pseudos
Currently, SGPR spill pseudo-instructions lack
an offset field to represent non-zero stack offsets.
This patch introduces an additional offset field to
SGPR spill pseudo-instructions and updates all
relevant passes that handle spill lowering to support
this new field. This field is essential for a future
patch that implements subreg reload of tuple registers
from their stack location during RA.
[CodeGen] Enhance createFrom for sub-reg aware cloning
Instead of just cloning the virtual register, this
function now creates a new virtual register derived
from a subregister class of the original value.
[AMDGPU] Make AMDGPURewriteAGPRCopyMFMA aware of subreg reload
AMDGPURewriteAGPRCopyMFMA pass is currently not subreg-aware.
In particular, the logic that optimizes spills into COPY
instructions assumes full register reloads. This becomes
problematic when the reload instruction partially restores
a tuple register. This patch introduces the necessary changes
to make this pass subreg-aware, for a future patch that
implements subreg reload during RA.
java/openjdk19: Bootstrap port from prebuilt package
Change the way the port is bootstrapped, by extracting a prebuild
package to the work dir, instead of installing the previous openjdk
version to the system.
Reviewed by: bofh (mentor)
Approved by: bofh (mentor)
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D54608
[llvm-jitlink] Make -show-addrs work without -check, fix fallout. (#175491)
Ensures that the address scraping passes are added to the JIT linker pipeline
if either of the -check or -show-addrs are passed. Prior to this commit we only
considered -check, so passing -show-addrs on its own was printing an empty
(unpopulated) symbol table.
This change exposed bugs in RuntimeDyldChecker's `MemoryRegionInfo` type, aned
llvm-jitlink's symbol printing code:
- `MemoryRegionInfo` was assuming that zero-sized symbols wouldn't be defined
and was using Size == 0 as a proxy for "region info uninitialized". This was
triggering assertions for valid LinkGraphs containing zero-sized symbols.
- llvm-jitlink's symbol printing code was assuming that all defined symbols
contained content, and was not correctly handling zero-fill / absolute
symbols. This triggered assertions about requesting content addresses for
non-content symbols.
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