[llvm] [NFC] LLVM reduce: remove unused variable (PR #133584)

Sat Mar 29 14:17:18 PDT 2025

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `amdgpu-offload-rhel-9-cmake-build-only` running on `rocm-docker-rhel-9` while building `llvm` at step 4 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/205/builds/4942

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

```
Step 4 (annotate) failure: '../llvm-zorg/zorg/buildbot/builders/annotated/amdgpu-offload-cmake.py --jobs=32' (failure)
...
[7623/7714] Creating library symlink lib/libMLIRTestPass.so
[7624/7714] Linking CXX shared library lib/libMLIRJitRunner.so.21.0git
[7625/7714] Creating library symlink lib/libMLIRJitRunner.so
[7626/7714] Linking CXX executable bin/mlir-rewrite
[7627/7714] Linking CXX executable bin/mlir-query
[7628/7714] Linking CXX executable bin/mlir-translate
[7629/7714] Linking CXX shared library lib/libMLIRCAPIRegisterEverything.so.21.0git
[7630/7714] Creating library symlink lib/libMLIRCAPIRegisterEverything.so
[7631/7714] Linking CXX executable bin/mlir-transform-opt
[7632/7714] Building CXX object tools/llvm-reduce/CMakeFiles/llvm-reduce.dir/deltas/ReduceOperandsToArgs.cpp.o
FAILED: tools/llvm-reduce/CMakeFiles/llvm-reduce.dir/deltas/ReduceOperandsToArgs.cpp.o 
ccache /usr/bin/c++ -DGTEST_HAS_RTTI=0 -DLLVM_BUILD_STATIC -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/build/tools/llvm-reduce -I/home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/llvm-project/llvm/tools/llvm-reduce -I/home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/build/include -I/home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/llvm-project/llvm/include -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wno-missing-field-initializers -pedantic -Wno-long-long -Wimplicit-fallthrough -Wno-uninitialized -Wno-nonnull -Wno-class-memaccess -Wno-redundant-move -Wno-pessimizing-move -Wno-noexcept-type -Wdelete-non-virtual-dtor -Wsuggest-override -Wno-comment -Wno-misleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -O3 -DNDEBUG -std=c++17  -fno-exceptions -funwind-tables -fno-rtti -UNDEBUG -MD -MT tools/llvm-reduce/CMakeFiles/llvm-reduce.dir/deltas/ReduceOperandsToArgs.cpp.o -MF tools/llvm-reduce/CMakeFiles/llvm-reduce.dir/deltas/ReduceOperandsToArgs.cpp.o.d -o tools/llvm-reduce/CMakeFiles/llvm-reduce.dir/deltas/ReduceOperandsToArgs.cpp.o -c /home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/llvm-project/llvm/tools/llvm-reduce/deltas/ReduceOperandsToArgs.cpp
In file included from /home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/llvm-project/llvm/include/llvm/Support/CFGDiff.h:20,
                 from /home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/llvm-project/llvm/include/llvm/IR/Dominators.h:31,
                 from /home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/llvm-project/llvm/include/llvm/Transforms/Utils/BasicBlockUtils.h:22,
                 from /home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/llvm-project/llvm/tools/llvm-reduce/deltas/ReduceOperandsToArgs.cpp:18:
/home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/llvm-project/llvm/include/llvm/Support/CFGUpdate.h:52:32: warning: ‘retain’ attribute ignored [-Wattributes]
   52 |   LLVM_DUMP_METHOD void dump() const { print(dbgs()); }
      |                                ^~~~~
In file included from /home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/llvm-project/llvm/include/llvm/IR/Dominators.h:31,
                 from /home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/llvm-project/llvm/include/llvm/Transforms/Utils/BasicBlockUtils.h:22,
                 from /home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/llvm-project/llvm/tools/llvm-reduce/deltas/ReduceOperandsToArgs.cpp:18:
/home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/llvm-project/llvm/include/llvm/Support/CFGDiff.h:172:32: warning: ‘retain’ attribute ignored [-Wattributes]
  172 |   LLVM_DUMP_METHOD void dump() const { print(dbgs()); }
      |                                ^~~~~
/home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/llvm-project/llvm/tools/llvm-reduce/deltas/ReduceOperandsToArgs.cpp: In function ‘void replaceFunctionCalls(llvm::Function*, llvm::Function*)’:
/home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/llvm-project/llvm/tools/llvm-reduce/deltas/ReduceOperandsToArgs.cpp:112:29: error: ‘void llvm::FPMathOperator::setFastMathFlags(llvm::FastMathFlags)’ is private within this context
  112 |       FPOp->setFastMathFlags(CI->getFastMathFlags());
      |       ~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
In file included from /home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/llvm-project/llvm/tools/llvm-reduce/deltas/ReduceOperandsToArgs.cpp:17:
/home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/llvm-project/llvm/include/llvm/IR/Operator.h:264:8: note: declared private here
  264 |   void setFastMathFlags(FastMathFlags FMF) {
      |        ^~~~~~~~~~~~~~~~
[7633/7714] Linking CXX executable bin/mlir-reduce
[7634/7714] Linking CXX shared library lib/libFIRDialect.so.21.0git
[7635/7714] Linking CXX executable bin/mlir-runner
[7636/7714] Linking CXX executable bin/mlir-lsp-server
[7637/7714] Linking CXX shared library lib/libMLIRMlirOptMain.so.21.0git
[7638/7714] Linking CXX executable bin/mlir-opt
[7639/7714] Linking CXX shared library lib/libclang-cpp.so.21.0git
[7640/7714] Building CXX object tools/flang/lib/Frontend/CMakeFiles/flangFrontend.dir/cmake_pch.hxx.gch
ninja: build stopped: subcommand failed.
['ninja'] exited with return code 1.
The build step threw an exception...
Traceback (most recent call last):
  File "/home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/build/../llvm-zorg/zorg/buildbot/builders/annotated/amdgpu-offload-cmake.py", line 50, in step
    yield
  File "/home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/build/../llvm-zorg/zorg/buildbot/builders/annotated/amdgpu-offload-cmake.py", line 41, in main
    run_command(["ninja"])
Step 7 (build cmake config) failure: build cmake config (failure)
...
[7623/7714] Creating library symlink lib/libMLIRTestPass.so
[7624/7714] Linking CXX shared library lib/libMLIRJitRunner.so.21.0git
[7625/7714] Creating library symlink lib/libMLIRJitRunner.so
[7626/7714] Linking CXX executable bin/mlir-rewrite
[7627/7714] Linking CXX executable bin/mlir-query
[7628/7714] Linking CXX executable bin/mlir-translate
[7629/7714] Linking CXX shared library lib/libMLIRCAPIRegisterEverything.so.21.0git
[7630/7714] Creating library symlink lib/libMLIRCAPIRegisterEverything.so
[7631/7714] Linking CXX executable bin/mlir-transform-opt
[7632/7714] Building CXX object tools/llvm-reduce/CMakeFiles/llvm-reduce.dir/deltas/ReduceOperandsToArgs.cpp.o
FAILED: tools/llvm-reduce/CMakeFiles/llvm-reduce.dir/deltas/ReduceOperandsToArgs.cpp.o 
ccache /usr/bin/c++ -DGTEST_HAS_RTTI=0 -DLLVM_BUILD_STATIC -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/build/tools/llvm-reduce -I/home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/llvm-project/llvm/tools/llvm-reduce -I/home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/build/include -I/home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/llvm-project/llvm/include -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wno-missing-field-initializers -pedantic -Wno-long-long -Wimplicit-fallthrough -Wno-uninitialized -Wno-nonnull -Wno-class-memaccess -Wno-redundant-move -Wno-pessimizing-move -Wno-noexcept-type -Wdelete-non-virtual-dtor -Wsuggest-override -Wno-comment -Wno-misleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -O3 -DNDEBUG -std=c++17  -fno-exceptions -funwind-tables -fno-rtti -UNDEBUG -MD -MT tools/llvm-reduce/CMakeFiles/llvm-reduce.dir/deltas/ReduceOperandsToArgs.cpp.o -MF tools/llvm-reduce/CMakeFiles/llvm-reduce.dir/deltas/ReduceOperandsToArgs.cpp.o.d -o tools/llvm-reduce/CMakeFiles/llvm-reduce.dir/deltas/ReduceOperandsToArgs.cpp.o -c /home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/llvm-project/llvm/tools/llvm-reduce/deltas/ReduceOperandsToArgs.cpp
In file included from /home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/llvm-project/llvm/include/llvm/Support/CFGDiff.h:20,
                 from /home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/llvm-project/llvm/include/llvm/IR/Dominators.h:31,
                 from /home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/llvm-project/llvm/include/llvm/Transforms/Utils/BasicBlockUtils.h:22,
                 from /home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/llvm-project/llvm/tools/llvm-reduce/deltas/ReduceOperandsToArgs.cpp:18:
/home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/llvm-project/llvm/include/llvm/Support/CFGUpdate.h:52:32: warning: ‘retain’ attribute ignored [-Wattributes]
   52 |   LLVM_DUMP_METHOD void dump() const { print(dbgs()); }
      |                                ^~~~~
In file included from /home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/llvm-project/llvm/include/llvm/IR/Dominators.h:31,
                 from /home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/llvm-project/llvm/include/llvm/Transforms/Utils/BasicBlockUtils.h:22,
                 from /home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/llvm-project/llvm/tools/llvm-reduce/deltas/ReduceOperandsToArgs.cpp:18:
/home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/llvm-project/llvm/include/llvm/Support/CFGDiff.h:172:32: warning: ‘retain’ attribute ignored [-Wattributes]
  172 |   LLVM_DUMP_METHOD void dump() const { print(dbgs()); }
      |                                ^~~~~
/home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/llvm-project/llvm/tools/llvm-reduce/deltas/ReduceOperandsToArgs.cpp: In function ‘void replaceFunctionCalls(llvm::Function*, llvm::Function*)’:
/home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/llvm-project/llvm/tools/llvm-reduce/deltas/ReduceOperandsToArgs.cpp:112:29: error: ‘void llvm::FPMathOperator::setFastMathFlags(llvm::FastMathFlags)’ is private within this context
  112 |       FPOp->setFastMathFlags(CI->getFastMathFlags());
      |       ~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
In file included from /home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/llvm-project/llvm/tools/llvm-reduce/deltas/ReduceOperandsToArgs.cpp:17:
/home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/llvm-project/llvm/include/llvm/IR/Operator.h:264:8: note: declared private here
  264 |   void setFastMathFlags(FastMathFlags FMF) {
      |        ^~~~~~~~~~~~~~~~
[7633/7714] Linking CXX executable bin/mlir-reduce
[7634/7714] Linking CXX shared library lib/libFIRDialect.so.21.0git
[7635/7714] Linking CXX executable bin/mlir-runner
[7636/7714] Linking CXX executable bin/mlir-lsp-server
[7637/7714] Linking CXX shared library lib/libMLIRMlirOptMain.so.21.0git
[7638/7714] Linking CXX executable bin/mlir-opt
[7639/7714] Linking CXX shared library lib/libclang-cpp.so.21.0git
[7640/7714] Building CXX object tools/flang/lib/Frontend/CMakeFiles/flangFrontend.dir/cmake_pch.hxx.gch
ninja: build stopped: subcommand failed.
['ninja'] exited with return code 1.
The build step threw an exception...
Traceback (most recent call last):
  File "/home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/build/../llvm-zorg/zorg/buildbot/builders/annotated/amdgpu-offload-cmake.py", line 50, in step
    yield
  File "/home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/build/../llvm-zorg/zorg/buildbot/builders/annotated/amdgpu-offload-cmake.py", line 41, in main
    run_command(["ninja"])

```

</details>

https://github.com/llvm/llvm-project/pull/133584