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

Sat Mar 29 07:07:59 PDT 2025

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `ml-opt-rel-x86-64` running on `ml-opt-rel-x86-64-b2` while building `llvm` at step 5 "build-unified-tree".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/185/builds/15819

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

```
Step 5 (build-unified-tree) failure: build (failure)
...
679.639 [40/46/3770] Building CXX object lib/Target/XCore/CMakeFiles/LLVMXCoreCodeGen.dir/XCoreFrameLowering.cpp.o
679.706 [40/45/3771] Building CXX object lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86OptimizeLEAs.cpp.o
679.873 [40/44/3772] Building CXX object lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86WinFixupBufferSecurityCheck.cpp.o
680.406 [40/43/3773] Building CXX object tools/bugpoint/CMakeFiles/bugpoint.dir/bugpoint.cpp.o
680.599 [40/42/3774] Building CXX object lib/Target/XCore/CMakeFiles/LLVMXCoreCodeGen.dir/XCoreISelDAGToDAG.cpp.o
680.649 [40/41/3775] Building CXX object lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86PartialReduction.cpp.o
680.939 [40/40/3776] Building CXX object lib/Target/XCore/CMakeFiles/LLVMXCoreCodeGen.dir/XCoreSubtarget.cpp.o
681.232 [40/39/3777] Building CXX object lib/Target/XCore/CMakeFiles/LLVMXCoreCodeGen.dir/XCoreFrameToArgsOffsetElim.cpp.o
681.360 [40/38/3778] Building CXX object lib/Target/XCore/CMakeFiles/LLVMXCoreCodeGen.dir/XCoreSelectionDAGInfo.cpp.o
681.404 [40/37/3779] 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/b/ml-opt-rel-x86-64-b1/build/tools/llvm-reduce -I/b/ml-opt-rel-x86-64-b1/llvm-project/llvm/tools/llvm-reduce -I/var/lib/buildbot/.local/lib/python3.7/site-packages/tensorflow/include -I/b/ml-opt-rel-x86-64-b1/build/include -I/b/ml-opt-rel-x86-64-b1/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 -fdiagnostics-color -ffunction-sections -fdata-sections -O3 -DNDEBUG  -fno-exceptions -funwind-tables -fno-rtti -UNDEBUG -std=c++17 -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 /b/ml-opt-rel-x86-64-b1/llvm-project/llvm/tools/llvm-reduce/deltas/ReduceOperandsToArgs.cpp
/b/ml-opt-rel-x86-64-b1/llvm-project/llvm/tools/llvm-reduce/deltas/ReduceOperandsToArgs.cpp: In function ‘void replaceFunctionCalls(llvm::Function*, llvm::Function*)’:
/b/ml-opt-rel-x86-64-b1/llvm-project/llvm/tools/llvm-reduce/deltas/ReduceOperandsToArgs.cpp:112:52: error: ‘void llvm::FPMathOperator::setFastMathFlags(llvm::FastMathFlags)’ is private within this context
  112 |       FPOp->setFastMathFlags(CI->getFastMathFlags());
      |                                                    ^
In file included from /b/ml-opt-rel-x86-64-b1/llvm-project/llvm/tools/llvm-reduce/deltas/ReduceOperandsToArgs.cpp:17:
/b/ml-opt-rel-x86-64-b1/llvm-project/llvm/include/llvm/IR/Operator.h:264:8: note: declared private here
  264 |   void setFastMathFlags(FastMathFlags FMF) {
      |        ^~~~~~~~~~~~~~~~
681.415 [40/36/3780] Building CXX object lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/GISel/X86CallLowering.cpp.o
681.489 [40/35/3781] Building CXX object lib/Target/XCore/CMakeFiles/LLVMXCoreCodeGen.dir/XCoreTargetObjectFile.cpp.o
681.774 [40/34/3782] Building CXX object lib/Target/XCore/CMakeFiles/LLVMXCoreCodeGen.dir/XCoreAsmPrinter.cpp.o
682.236 [40/33/3783] Building CXX object lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/GISel/X86RegisterBankInfo.cpp.o
682.245 [40/32/3784] Building CXX object lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86InsertPrefetch.cpp.o
682.554 [40/31/3785] Building CXX object lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86LoadValueInjectionLoadHardening.cpp.o
682.681 [40/30/3786] Building CXX object lib/Target/XCore/CMakeFiles/LLVMXCoreCodeGen.dir/XCoreRegisterInfo.cpp.o
683.983 [40/29/3787] Building CXX object lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86RegisterInfo.cpp.o
684.158 [40/28/3788] Building CXX object lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86CodeGenPassBuilder.cpp.o
684.254 [40/27/3789] Building CXX object lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86Subtarget.cpp.o
684.909 [40/26/3790] Building CXX object lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86SpeculativeLoadHardening.cpp.o
684.976 [40/25/3791] Building CXX object lib/Target/XCore/CMakeFiles/LLVMXCoreCodeGen.dir/XCoreISelLowering.cpp.o
685.179 [40/24/3792] Building CXX object tools/llvm-reduce/CMakeFiles/llvm-reduce.dir/deltas/ReduceRegisterDefs.cpp.o
685.529 [40/23/3793] Building CXX object lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86ISelLoweringCall.cpp.o
685.542 [40/22/3794] Building CXX object lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86MCInstLower.cpp.o
685.564 [40/21/3795] Building CXX object tools/llvm-reduce/CMakeFiles/llvm-reduce.dir/deltas/ReduceInstructionsMIR.cpp.o
686.175 [40/20/3796] Building CXX object lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/GISel/X86LegalizerInfo.cpp.o
686.225 [40/19/3797] Building CXX object lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86FrameLowering.cpp.o
686.718 [40/18/3798] Building CXX object tools/llc/CMakeFiles/llc.dir/llc.cpp.o
687.144 [40/17/3799] Building CXX object lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86InstCombineIntrinsic.cpp.o
688.911 [40/16/3800] Building CXX object lib/Passes/CMakeFiles/LLVMPasses.dir/CodeGenPassBuilder.cpp.o
689.266 [40/15/3801] Building CXX object lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86FastISel.cpp.o
689.746 [40/14/3802] Building CXX object lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/GISel/X86InstructionSelector.cpp.o
690.172 [40/13/3803] Building CXX object tools/llvm-exegesis/lib/RISCV/CMakeFiles/LLVMExegesisRISCV.dir/RISCVExegesisPreprocessing.cpp.o
690.820 [40/12/3804] Building CXX object lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86TargetMachine.cpp.o
691.194 [40/11/3805] Building CXX object tools/llvm-exegesis/lib/CMakeFiles/LLVMExegesis.dir/Assembler.cpp.o
691.898 [40/10/3806] Building CXX object tools/llvm-exegesis/lib/CMakeFiles/LLVMExegesis.dir/SnippetRepetitor.cpp.o
691.903 [40/9/3807] Building CXX object lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86InstrInfo.cpp.o
692.047 [40/8/3808] Building CXX object tools/llvm-exegesis/lib/X86/CMakeFiles/LLVMExegesisX86.dir/Target.cpp.o

```

</details>

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