[AArch64] Fix metrics of ASIMD instructions in Neoverse N3 (#169790)
Some ASIMD instructions in the Neoverse N3 scheduler model seem to have
been missed and have default definitions, which give them incorrect
latency and throughput. This patch fixes such instructions to match the
current N3 SWOG.
[BOLT][PAC] Warn about synchronous unwind tables
BOLT currently ignores functions with synchronous PAuth DWARF info.
When more than 10% of functions get ignored for inconsistencies, we
should emit a warning to only use asynchronous unwind tables.
See also: #165215
[BOLT][NFC] Rename Pointer Auth DWARF rewriter passes
Original names were "working titles". After initial patches are merged,
I'd like to rename these passes to names that reflect their intent
better and show their relationship to each other:
InsertNegateRAStatePass renamed to PointerAuthCFIFixup,
MarkRAStates renamed to PointerAuthCFIAnalyzer.
[lldb] Fix duplicate test class name causing lldb-dotest conflict (#169861)
Duplicate test class name `TestFrameVarDILPointerArithmetic` prevents
lldb-dotest from running any tests.
The conflict exists between:
- lldb/test/API/commands/frame/vardil/expr/PointerArithmetic/
- lldb/test/API/commands/frame/vardil/basics/PointerArithmetic/
Rename the expr variant to `TestFrameVarDILExprPointerArithmetic`.
[AArch64] Guard for 128bit vectors in mull combine. (#169839)
The test case generates a extract_subvector(index) leading into a mul.
Make sure we don't try and treat the scalable vector extract as a 128bit
vector in the mull combine.
Fixes #168912
[BOLT][PAC] Warn about synchronous unwind tables
BOLT currently ignores functions with synchronous PAuth DWARF info.
When more than 10% of functions get ignored for inconsistencies, we
should emit a warning to only use asynchronous unwind tables.
See also: #165215
[BOLT][NFC] Rename Pointer Auth DWARF rewriter passes
Original names were "working titles". After initial patches are merged,
I'd like to rename these passes to names that reflect their intent
better and show their relationship to each other:
InsertNegateRAStatePass renamed to PointerAuthCFIFixup,
MarkRAStates renamed to PointerAuthCFIAnalyzer.
[libc++] Add support for picolibc and newlib in RUNTIMES_USE_LIBC (#147956)
This replaces detection of picolibc in libc++ (by checking for and
including picolibc.h) with using RUNTIMES_USE_LIBC build time option
intriduced in https://github.com/llvm/llvm-project/pull/134893
RUNTIMES_USE_LIBC is extended to accept picolibc and newlib.
Detection of picolibc via the header is kept as a deprecated feature to
avoid breaking builds.
libc++ is updated to use dedicated LIBCXX_LIBC_NEWLIB macro to check for
newlib specific conditions instead of less informative _NEWLIB_VERSION
---------
Co-authored-by: Louis Dionne <ldionne.2 at gmail.com>