[llvm] [SLP] Make getSameOpcode support different instructions if they have same semantics. (PR #112181)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `flang-runtime-cuda-clang` running on `as-builder-7` while building `llvm` at step 10 "build-flang-runtime-FortranRuntime".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/7/builds/8567

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

```
Step 10 (build-flang-runtime-FortranRuntime) failure: cmake (failure)
...
  115 | static RT_API_ATTRS void *MemmoveWrapper(
      |                           ^~~~~~~~~~~~~~
1 warning generated.
In file included from /home/buildbot/worker/as-builder-7/ramdisk/flang-runtime-cuda-clang/llvm-project/flang/runtime/type-info.cpp:11:
In file included from /home/buildbot/worker/as-builder-7/ramdisk/flang-runtime-cuda-clang/llvm-project/flang/runtime/tools.h:17:
/home/buildbot/worker/as-builder-7/ramdisk/flang-runtime-cuda-clang/llvm-project/flang/runtime/../include/flang/Runtime/freestanding-tools.h:115:27: warning: unused function 'MemmoveWrapper' [-Wunused-function]
  115 | static RT_API_ATTRS void *MemmoveWrapper(
      |                           ^~~~~~~~~~~~~~
1 warning generated.
12.965 [1/24/41] Building CXX object CMakeFiles/FortranRuntime.dir/edit-input.cpp.o
FAILED: CMakeFiles/FortranRuntime.dir/edit-input.cpp.o 
/home/buildbot/worker/as-builder-7/ramdisk/flang-runtime-cuda-clang/install-clang/bin/clang++ -DFLANG_LITTLE_ENDIAN=1 -DGTEST_HAS_RTTI=0 -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -DOMP_OFFLOAD_BUILD -I/home/buildbot/worker/as-builder-7/ramdisk/flang-runtime-cuda-clang/llvm-project/flang/runtime/../include -I/home/buildbot/worker/as-builder-7/ramdisk/flang-runtime-cuda-clang/build/flang-runtime -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -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 -fno-lto -O3 -DNDEBUG   -U_GLIBCXX_ASSERTIONS -U_LIBCPP_ENABLE_ASSERTIONS -std=c++17  -fno-exceptions -fno-unwind-tables -fno-asynchronous-unwind-tables -fno-rtti -fopenmp -fvisibility=hidden -fopenmp-cuda-mode --offload-arch=sm_50,sm_60,sm_70,sm_80 -foffload-lto -MD -MT CMakeFiles/FortranRuntime.dir/edit-input.cpp.o -MF CMakeFiles/FortranRuntime.dir/edit-input.cpp.o.d -o CMakeFiles/FortranRuntime.dir/edit-input.cpp.o -c /home/buildbot/worker/as-builder-7/ramdisk/flang-runtime-cuda-clang/llvm-project/flang/runtime/edit-input.cpp
In file included from /home/buildbot/worker/as-builder-7/ramdisk/flang-runtime-cuda-clang/llvm-project/flang/runtime/edit-input.cpp:9:
In file included from /home/buildbot/worker/as-builder-7/ramdisk/flang-runtime-cuda-clang/llvm-project/flang/runtime/edit-input.h:12:
In file included from /home/buildbot/worker/as-builder-7/ramdisk/flang-runtime-cuda-clang/llvm-project/flang/runtime/format.h:14:
In file included from /home/buildbot/worker/as-builder-7/ramdisk/flang-runtime-cuda-clang/llvm-project/flang/runtime/environment.h:13:
In file included from /home/buildbot/worker/as-builder-7/ramdisk/flang-runtime-cuda-clang/llvm-project/flang/runtime/../include/flang/Decimal/decimal.h:29:
/home/buildbot/worker/as-builder-7/ramdisk/flang-runtime-cuda-clang/llvm-project/flang/runtime/../include/flang/Decimal/binary-floating-point.h:39:24: warning: declaration is not declared in any declare target region [-Wopenmp-target]
   39 |   static constexpr int significandBits{realChars.significandBits};
      |                        ^
/home/buildbot/worker/as-builder-7/ramdisk/flang-runtime-cuda-clang/llvm-project/flang/runtime/../include/flang/Decimal/binary-floating-point.h:51:59: note: used here
   51 |   static constexpr RawType significandMask{(RawType{1} << significandBits) - 1};
      |                                                           ^~~~~~~~~~~~~~~
1 warning generated.
In file included from /home/buildbot/worker/as-builder-7/ramdisk/flang-runtime-cuda-clang/llvm-project/flang/runtime/edit-input.cpp:9:
In file included from /home/buildbot/worker/as-builder-7/ramdisk/flang-runtime-cuda-clang/llvm-project/flang/runtime/edit-input.h:12:
In file included from /home/buildbot/worker/as-builder-7/ramdisk/flang-runtime-cuda-clang/llvm-project/flang/runtime/format.h:14:
In file included from /home/buildbot/worker/as-builder-7/ramdisk/flang-runtime-cuda-clang/llvm-project/flang/runtime/environment.h:13:
In file included from /home/buildbot/worker/as-builder-7/ramdisk/flang-runtime-cuda-clang/llvm-project/flang/runtime/../include/flang/Decimal/decimal.h:29:
/home/buildbot/worker/as-builder-7/ramdisk/flang-runtime-cuda-clang/llvm-project/flang/runtime/../include/flang/Decimal/binary-floating-point.h:39:24: warning: declaration is not declared in any declare target region [-Wopenmp-target]
   39 |   static constexpr int significandBits{realChars.significandBits};
      |                        ^
/home/buildbot/worker/as-builder-7/ramdisk/flang-runtime-cuda-clang/llvm-project/flang/runtime/../include/flang/Decimal/binary-floating-point.h:51:59: note: used here
   51 |   static constexpr RawType significandMask{(RawType{1} << significandBits) - 1};
      |                                                           ^~~~~~~~~~~~~~~
In file included from /home/buildbot/worker/as-builder-7/ramdisk/flang-runtime-cuda-clang/llvm-project/flang/runtime/edit-input.cpp:9:
In file included from /home/buildbot/worker/as-builder-7/ramdisk/flang-runtime-cuda-clang/llvm-project/flang/runtime/edit-input.h:12:
In file included from /home/buildbot/worker/as-builder-7/ramdisk/flang-runtime-cuda-clang/llvm-project/flang/runtime/format.h:19:
/home/buildbot/worker/as-builder-7/ramdisk/flang-runtime-cuda-clang/llvm-project/flang/runtime/../include/flang/Runtime/freestanding-tools.h:115:27: warning: unused function 'MemmoveWrapper' [-Wunused-function]
  115 | static RT_API_ATTRS void *MemmoveWrapper(
      |                           ^~~~~~~~~~~~~~
2 warnings generated.
In file included from /home/buildbot/worker/as-builder-7/ramdisk/flang-runtime-cuda-clang/llvm-project/flang/runtime/edit-input.cpp:9:
In file included from /home/buildbot/worker/as-builder-7/ramdisk/flang-runtime-cuda-clang/llvm-project/flang/runtime/edit-input.h:12:
In file included from /home/buildbot/worker/as-builder-7/ramdisk/flang-runtime-cuda-clang/llvm-project/flang/runtime/format.h:14:
In file included from /home/buildbot/worker/as-builder-7/ramdisk/flang-runtime-cuda-clang/llvm-project/flang/runtime/environment.h:13:
In file included from /home/buildbot/worker/as-builder-7/ramdisk/flang-runtime-cuda-clang/llvm-project/flang/runtime/../include/flang/Decimal/decimal.h:29:
/home/buildbot/worker/as-builder-7/ramdisk/flang-runtime-cuda-clang/llvm-project/flang/runtime/../include/flang/Decimal/binary-floating-point.h:39:24: warning: declaration is not declared in any declare target region [-Wopenmp-target]
   39 |   static constexpr int significandBits{realChars.significandBits};

```

</details>

https://github.com/llvm/llvm-project/pull/112181