[Object] Extract format-agnostic BBAddrMap decoder (#188435)
[Object] Extract format-agnostic BBAddrMap decoder
This is part of patches to port BBAddrMap to COFF.
Move format-agnostic BBAddrMap decode logic out of ELF.cpp into
BBAddrMap.cpp, and expose a shared decodeBBAddrMapPayload helper in
BBAddrMap.h.
Keep ELF-specific steps (section decompression and relocation
translation) in ELF.cpp, and delegate payload decoding to the
shared helper.
Error messages in the decoder are updated to use the generic
"BB address map" instead of the ELF-specific "SHT_LLVM_BB_ADDR_MAP"
since the decoder is now shared across object formats.
This refactor prepares follow-up work to let COFF and ELF share
the same BBAddrMap decoding logic.
[lldb] Fix ScriptedFrame thread member init assignment (#191297)
This patch fixes a typo in the `ScriptedFrame` base class initializer
where we used a thread id with `GetThreadByIndexID` instead of the
thread index.
This could lead to issues where derived classes wouldn't be initialized
properly, which could cause crashes down the line.
The patch addresses the issue by calling `GetThreadByID` with the thread
id.
rdar://174432881
Signed-off-by: Med Ismail Bennani <ismail at bennani.ma>
[MLIR][XeGPU] Add uArch defintion for CRI - Crescent Island (#191024)
XeGPU lowering relies on uArch definition and lowering fails if a chip
does not have uArch definition entry.
Add preliminary uArch definition for CRI.
This is a place holder for now and current defintion is identical to
BMG.
[WebAssembly][GlobalISel] Add legalization & selection of most integer ops (#190234)
Allows many ops/instructions working solely on integers to be fully
selected (legalize, regbankselect, isel).
Split from #157161
Revert "[X86][APX] Add copy instruction to LiveInterval of SrcReg (#191102) (#191330)
This reverts commit 16f02c0940d6ee783c38ca27b44fc158d77e7567.
This caused a bot failure when building with expensive checks.
https://ci.swift.org/job/llvm.org/job/clang-stage1-RA-expensive/job/main/409/testReport/junit/Clang/CodeGen_X86/pr190962_ll/
The test case included in the original commit fails with:
```
| *** Bad machine code: Two-address instruction operands must be identical ***
| - function: foo
| - basic block: %bb.0 (0x7fc688853c40) [0B;192B)
| - instruction: 128B %10:gr64 = IMUL64rm %33:gr64(tied-def 0), %fixed-stack.1, 1, $noreg, 0, $noreg, implicit-def dead $eflags :: (load (s64) from %fixed-stack.1, align 16)
| - operand 1: %33:gr64(tied-def 0)
| fatal error: error in backend: Found 1 machine code errors.
```
[2 lines not shown]
[RISCV][P-ext] Add mul*.h00 and mul*.w00 patterns. (#191313)
The instructions take the low halfword/word from each input, extends
them and multiplies to produce a word/dword result.
We can use these instead of plain MUL if it would allow us to avoid
a sext/zext for at least one of the operands.
Tests were written by Claude Sonnet 4.5.
Merge tag 'kbuild-fixes-7.0-4' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux
Pull Kbuild fixes from Nathan Chancellor:
- Make modules-cpio-pkg respect INSTALL_MOD_PATH so that it can be
used with distribution initramfs files that have a merged /usr,
such as Fedora
- Silence an instance of -Wunused-but-set-global, a strengthening
of -Wunused-but-set-variable in tip of tree Clang, in modpost,
as the variable for extra warnings is currently unused
* tag 'kbuild-fixes-7.0-4' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux:
modpost: Declare extra_warn with unused attribute
kbuild: modules-cpio-pkg: Respect INSTALL_MOD_PATH
sys/kobj.h: Make self-sufficient
kobj.h just needs sys/types.h (because it uses u_int, it can't use
sys/_types.h). kobj.h isn't a standard thing, so we don't need to be
careful about namespace pollution.
Sponsored by: Netflix
nvme: Allow larger user request sizes
We have a small buffer for pages on the stack, but if the user wants to
do an I/O larger than this we currently fail w/o a way for the user to
know the max size. It's not hard to allocate an array for the uncommon
case of very large I/Os, and the performance advantage of the array is
small in that case anyway. In addition, this allows firmware upgrades
using the full transfer size of the device as a happy accident too.
Sponsored by: Netflix
Reviewed by: chs, chuck
Differential Revision: https://reviews.freebsd.org/D55638
nvme: Allow larger user request sizes
We have a small buffer for pages on the stack, but if the user wants to
do an I/O larger than this we currently fail w/o a way for the user to
know the max size. It's not hard to allocate an array for the uncommon
case of very large I/Os, and the performance advantage of the array is
small in that case anyway. In addition, this allows firmware upgrades
using the full transfer size of the device as a happy accident too.
Sponsored by: Netflix
Reviewed by: chs, chuck
Differential Revision: https://reviews.freebsd.org/D55638
sys/kobj.h: Make self-sufficient
kobj.h just needs sys/types.h (because it uses u_int, it can't use
sys/_types.h). kobj.h isn't a standard thing, so we don't need to be
careful about namespace pollution.
Sponsored by: Netflix
remove sysutils/nix 2.3.16 as "no longer usefel"
Efforts to get nix(pkgs) going on OpenBSD seem to have been dropped
completely, I stopped using our port looong ago and, since import in
2023, have never received a single report from anyone.
Some things never worked, others require bits in nixpkgs to be done,
which never happened.
If work ever continues, this can be pulled back from the attic;
until then, get give back some bulk build time.
No objections on ports@
OK rsadowski
[llvm-profgen] Read build ID from binary for perfscript address filtering (#190862)
For shared libraries (.so), read the binary's build ID during load()
using object::getBuildID() and store it as FilterBuildID. Main
executables keep FilterBuildID empty, matching the convention that
their perfscript addresses have no buildid prefix.
This enables automatic build ID-based filtering of perfscript
addresses in [buildid:]0xaddr format without requiring a CLI option.
[BOLT] Use identify_magic for shared library detection (#190902)
Replace the fragile filename-based check (ends_with(".so")) with
identify_magic()/file_magic::elf_shared_object to reliably detect
shared libraries when filtering pre-aggregated profile data by
build ID.
Test Plan: pre-aggregated-perf-shlib.test
