[llvm] [LoongArch] Add patterns to support `[x]vadda.{b/h/w/d}` generation (PR #160674)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `sanitizer-aarch64-linux-bootstrap-msan` running on `sanitizer-buildbot9` while building `llvm` at step 2 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/94/builds/11278

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 2 (annotate) failure: 'python ../sanitizer_buildbot/sanitizers/zorg/buildbot/builders/sanitizers/buildbot_selector.py' (failure)
...
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using lld-link: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/lld-link
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using ld64.lld: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using wasm-ld: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using ld.lld: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/ld.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using lld-link: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/lld-link
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using ld64.lld: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using wasm-ld: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/main.py:74: note: The test suite configuration requested an individual test timeout of 0 seconds but a timeout of 900 seconds was requested on the command line. Forcing timeout to be 900 seconds.
-- Testing: 87580 tests, 72 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90..
FAIL: lld :: ELF/ppc64-toc-call-to-pcrel-long-jump.s (86664 of 87580)
******************** TEST 'lld :: ELF/ppc64-toc-call-to-pcrel-long-jump.s' FAILED ********************
Exit Code: -11

Command Output (stdout):
--
# RUN: at line 2
split-file /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/lld/test/ELF/ppc64-toc-call-to-pcrel-long-jump.s /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/tools/lld/test/ELF/Output/ppc64-toc-call-to-pcrel-long-jump.s.tmp
# executed command: split-file /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/lld/test/ELF/ppc64-toc-call-to-pcrel-long-jump.s /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/tools/lld/test/ELF/Output/ppc64-toc-call-to-pcrel-long-jump.s.tmp
# note: command had no output on stdout or stderr
# RUN: at line 4
/home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/llvm-mc -filetype=obj -triple=powerpc64le /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/tools/lld/test/ELF/Output/ppc64-toc-call-to-pcrel-long-jump.s.tmp/asm -o /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/tools/lld/test/ELF/Output/ppc64-toc-call-to-pcrel-long-jump.s.tmp.o
# executed command: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/llvm-mc -filetype=obj -triple=powerpc64le /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/tools/lld/test/ELF/Output/ppc64-toc-call-to-pcrel-long-jump.s.tmp/asm -o /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/tools/lld/test/ELF/Output/ppc64-toc-call-to-pcrel-long-jump.s.tmp.o
# note: command had no output on stdout or stderr
# RUN: at line 5
/home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/ld.lld -T /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/tools/lld/test/ELF/Output/ppc64-toc-call-to-pcrel-long-jump.s.tmp/lts /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/tools/lld/test/ELF/Output/ppc64-toc-call-to-pcrel-long-jump.s.tmp.o -o /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/tools/lld/test/ELF/Output/ppc64-toc-call-to-pcrel-long-jump.s.tmp_le
# executed command: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/ld.lld -T /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/tools/lld/test/ELF/Output/ppc64-toc-call-to-pcrel-long-jump.s.tmp/lts /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/tools/lld/test/ELF/Output/ppc64-toc-call-to-pcrel-long-jump.s.tmp.o -o /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/tools/lld/test/ELF/Output/ppc64-toc-call-to-pcrel-long-jump.s.tmp_le
# .---command stderr------------
# | ld.lld: warning: cannot find entry symbol _start; not setting start address
# | PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace and instructions to reproduce the bug.
# |  #0 0x0000b69ee1e8d7ec llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/ld.lld+0x4cfd7ec)
# |  #1 0x0000b69ee1e8b170 llvm::sys::RunSignalHandlers() (/home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/ld.lld+0x4cfb170)
# |  #2 0x0000b69ee1e8e600 SignalHandler(int, siginfo_t*, void*) Signals.cpp:0:0
# |  #3 0x0000f7b3d22c19c0 (linux-vdso.so.1+0x9c0)
# |  #4 0x0000b69ee21201e8 lld::elf::Symbol::getVA(lld::elf::Ctx&, long) const (/home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/ld.lld+0x4f901e8)
# |  #5 0x0000b69ee2134208 lld::elf::PPC64LongBranchTargetSection::writeTo(unsigned char*) (/home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/ld.lld+0x4fa4208)
# |  #6 0x0000b69ee20d1780 void lld::elf::OutputSection::writeTo<llvm::object::ELFType<(llvm::endianness)1, true>>(lld::elf::Ctx&, unsigned char*, llvm::parallel::TaskGroup&)::'lambda'(unsigned long, unsigned long)::operator()(unsigned long, unsigned long) const OutputSections.cpp:0:0
# |  #7 0x0000b69ee1ef5c6c std::_Function_handler<void (), llvm::parallel::TaskGroup::spawn(std::function<void ()>)::$_0>::_M_invoke(std::_Any_data const&) Parallel.cpp:0:0
# |  #8 0x0000b69ee1ef5780 llvm::parallel::detail::(anonymous namespace)::ThreadPoolExecutor::work(llvm::ThreadPoolStrategy, unsigned int) Parallel.cpp:0:0
# |  #9 0x0000f7b3d1d07ba0 (/lib/aarch64-linux-gnu/libstdc++.so.6+0xe7ba0)
# | #10 0x0000f7b3d1a9861c (/lib/aarch64-linux-gnu/libc.so.6+0x8861c)
# | #11 0x0000f7b3d1b02a8c (/lib/aarch64-linux-gnu/libc.so.6+0xf2a8c)
# `-----------------------------
# error: command failed with exit status: -11

--

********************
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90.. 
Step 14 (stage3/msan check) failure: stage3/msan check (failure)
...
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using lld-link: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/lld-link
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using ld64.lld: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using wasm-ld: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using ld.lld: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/ld.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using lld-link: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/lld-link
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using ld64.lld: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:530: note: using wasm-ld: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/main.py:74: note: The test suite configuration requested an individual test timeout of 0 seconds but a timeout of 900 seconds was requested on the command line. Forcing timeout to be 900 seconds.
-- Testing: 87580 tests, 72 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90..
FAIL: lld :: ELF/ppc64-toc-call-to-pcrel-long-jump.s (86664 of 87580)
******************** TEST 'lld :: ELF/ppc64-toc-call-to-pcrel-long-jump.s' FAILED ********************
Exit Code: -11

Command Output (stdout):
--
# RUN: at line 2
split-file /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/lld/test/ELF/ppc64-toc-call-to-pcrel-long-jump.s /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/tools/lld/test/ELF/Output/ppc64-toc-call-to-pcrel-long-jump.s.tmp
# executed command: split-file /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/lld/test/ELF/ppc64-toc-call-to-pcrel-long-jump.s /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/tools/lld/test/ELF/Output/ppc64-toc-call-to-pcrel-long-jump.s.tmp
# note: command had no output on stdout or stderr
# RUN: at line 4
/home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/llvm-mc -filetype=obj -triple=powerpc64le /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/tools/lld/test/ELF/Output/ppc64-toc-call-to-pcrel-long-jump.s.tmp/asm -o /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/tools/lld/test/ELF/Output/ppc64-toc-call-to-pcrel-long-jump.s.tmp.o
# executed command: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/llvm-mc -filetype=obj -triple=powerpc64le /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/tools/lld/test/ELF/Output/ppc64-toc-call-to-pcrel-long-jump.s.tmp/asm -o /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/tools/lld/test/ELF/Output/ppc64-toc-call-to-pcrel-long-jump.s.tmp.o
# note: command had no output on stdout or stderr
# RUN: at line 5
/home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/ld.lld -T /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/tools/lld/test/ELF/Output/ppc64-toc-call-to-pcrel-long-jump.s.tmp/lts /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/tools/lld/test/ELF/Output/ppc64-toc-call-to-pcrel-long-jump.s.tmp.o -o /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/tools/lld/test/ELF/Output/ppc64-toc-call-to-pcrel-long-jump.s.tmp_le
# executed command: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/ld.lld -T /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/tools/lld/test/ELF/Output/ppc64-toc-call-to-pcrel-long-jump.s.tmp/lts /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/tools/lld/test/ELF/Output/ppc64-toc-call-to-pcrel-long-jump.s.tmp.o -o /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/tools/lld/test/ELF/Output/ppc64-toc-call-to-pcrel-long-jump.s.tmp_le
# .---command stderr------------
# | ld.lld: warning: cannot find entry symbol _start; not setting start address
# | PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace and instructions to reproduce the bug.
# |  #0 0x0000b69ee1e8d7ec llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/ld.lld+0x4cfd7ec)
# |  #1 0x0000b69ee1e8b170 llvm::sys::RunSignalHandlers() (/home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/ld.lld+0x4cfb170)
# |  #2 0x0000b69ee1e8e600 SignalHandler(int, siginfo_t*, void*) Signals.cpp:0:0
# |  #3 0x0000f7b3d22c19c0 (linux-vdso.so.1+0x9c0)
# |  #4 0x0000b69ee21201e8 lld::elf::Symbol::getVA(lld::elf::Ctx&, long) const (/home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/ld.lld+0x4f901e8)
# |  #5 0x0000b69ee2134208 lld::elf::PPC64LongBranchTargetSection::writeTo(unsigned char*) (/home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/ld.lld+0x4fa4208)
# |  #6 0x0000b69ee20d1780 void lld::elf::OutputSection::writeTo<llvm::object::ELFType<(llvm::endianness)1, true>>(lld::elf::Ctx&, unsigned char*, llvm::parallel::TaskGroup&)::'lambda'(unsigned long, unsigned long)::operator()(unsigned long, unsigned long) const OutputSections.cpp:0:0
# |  #7 0x0000b69ee1ef5c6c std::_Function_handler<void (), llvm::parallel::TaskGroup::spawn(std::function<void ()>)::$_0>::_M_invoke(std::_Any_data const&) Parallel.cpp:0:0
# |  #8 0x0000b69ee1ef5780 llvm::parallel::detail::(anonymous namespace)::ThreadPoolExecutor::work(llvm::ThreadPoolStrategy, unsigned int) Parallel.cpp:0:0
# |  #9 0x0000f7b3d1d07ba0 (/lib/aarch64-linux-gnu/libstdc++.so.6+0xe7ba0)
# | #10 0x0000f7b3d1a9861c (/lib/aarch64-linux-gnu/libc.so.6+0x8861c)
# | #11 0x0000f7b3d1b02a8c (/lib/aarch64-linux-gnu/libc.so.6+0xf2a8c)
# `-----------------------------
# error: command failed with exit status: -11

--

********************
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90.. 

```

</details>

https://github.com/llvm/llvm-project/pull/160674