[llvm] [DAG][ARM] computeKnownBitsForTargetNode - add handling for ARMISD VORRIMM\VBICIMM nodes (PR #149494)

[Simon Pilgrim via llvm-commits]

RKSimon wrote:

clang-ppc64le-rhel appears to missing LLVMAsmParser
```
: && /home/buildbots/llvm-external-buildbots/clang.19.1.7/bin/clang++ --gcc-toolchain=/gcc-toolchain/usr -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wc++98-compat-extra-semi -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -O3 -DNDEBUG -Wl,--color-diagnostics     -Wl,--gc-sections  -Xlinker --dependency-file=unittests/Target/ARM/CMakeFiles/ARMTests.dir/link.d unittests/Target/ARM/CMakeFiles/ARMTests.dir/MachineInstrTest.cpp.o unittests/Target/ARM/CMakeFiles/ARMTests.dir/InstSizes.cpp.o unittests/Target/ARM/CMakeFiles/ARMTests.dir/ARMSelectionDAGTest.cpp.o -o unittests/Target/ARM/ARMTests  -Wl,-rpath,/home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-rhel-test/clang-ppc64le-rhel/build/lib  lib/libLLVMARMCodeGen.so.22.0git  lib/libLLVMARMDesc.so.22.0git  lib/libLLVMARMInfo.so.22.0git  lib/libLLVMGlobalISel.so.22.0git  lib/libLLVMMIRParser.so.22.0git  lib/libLLVMSelectionDAG.so.22.0git  lib/libllvm_gtest_main.so.22.0git  lib/libllvm_gtest.so.22.0git  -lpthread  lib/libLLVMCodeGen.so.22.0git  lib/libLLVMCodeGenTypes.so.22.0git  lib/libLLVMTarget.so.22.0git  lib/libLLVMMC.so.22.0git  lib/libLLVMCore.so.22.0git  lib/libLLVMTargetParser.so.22.0git  lib/libLLVMSupport.so.22.0git  -Wl,-rpath-link,/home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-rhel-test/clang-ppc64le-rhel/build/lib && :
ld.lld: error: undefined symbol: llvm::parseAssemblyString(llvm::StringRef, llvm::SMDiagnostic&, llvm::LLVMContext&, llvm::SlotMapping*)
```

https://github.com/llvm/llvm-project/pull/149494