[llvm] [Analysis] Ensure use of strict fp exceptions in ConstantFolding (PR #136139)

Mon Apr 28 02:13:51 PDT 2025

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `openmp-offload-amdgpu-runtime-2` running on `rocm-worker-hw-02` while building `llvm` at step 5 "compile-openmp".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/10/builds/4275

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

```
Step 5 (compile-openmp) failure: build (failure)
...
3.505 [1977/64/2578] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/InteractiveModelRunner.cpp.o
3.505 [1976/64/2579] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/KernelInfo.cpp.o
3.506 [1975/64/2580] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/LastRunTrackingAnalysis.cpp.o
3.506 [1974/64/2581] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/LazyBranchProbabilityInfo.cpp.o
3.507 [1973/64/2582] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/LazyBlockFrequencyInfo.cpp.o
3.507 [1972/64/2583] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/LazyCallGraph.cpp.o
3.508 [1971/64/2584] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/LazyValueInfo.cpp.o
3.508 [1970/64/2585] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/Lint.cpp.o
3.508 [1969/64/2586] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/Local.cpp.o
3.509 [1968/64/2587] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/ConstantFolding.cpp.o
FAILED: lib/Analysis/CMakeFiles/LLVMAnalysis.dir/ConstantFolding.cpp.o 
ccache /usr/bin/c++ -DGTEST_HAS_RTTI=0 -DHAS_LOGF128 -DLLVM_EXPORTS -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/home/botworker/builds/openmp-offload-amdgpu-runtime-2/llvm.build/lib/Analysis -I/home/botworker/builds/openmp-offload-amdgpu-runtime-2/llvm.src/llvm/lib/Analysis -I/home/botworker/builds/openmp-offload-amdgpu-runtime-2/llvm.build/include -I/home/botworker/builds/openmp-offload-amdgpu-runtime-2/llvm.src/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 -fPIC  -fno-exceptions -funwind-tables -fno-rtti -UNDEBUG -std=c++17 -ffp-exception-behavior=strict -MD -MT lib/Analysis/CMakeFiles/LLVMAnalysis.dir/ConstantFolding.cpp.o -MF lib/Analysis/CMakeFiles/LLVMAnalysis.dir/ConstantFolding.cpp.o.d -o lib/Analysis/CMakeFiles/LLVMAnalysis.dir/ConstantFolding.cpp.o -c /home/botworker/builds/openmp-offload-amdgpu-runtime-2/llvm.src/llvm/lib/Analysis/ConstantFolding.cpp
c++: error: unrecognized command-line option ‘-ffp-exception-behavior=strict’
3.509 [1968/63/2588] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/Loads.cpp.o
3.509 [1968/62/2589] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/LoopAccessAnalysis.cpp.o
3.510 [1968/61/2590] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/LoopAnalysisManager.cpp.o
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3.510 [1968/59/2592] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/LoopNestAnalysis.cpp.o
3.510 [1968/58/2593] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/LoopUnrollAnalyzer.cpp.o
3.511 [1968/57/2594] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/LoopInfo.cpp.o
3.511 [1968/56/2595] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/LoopPass.cpp.o
3.511 [1968/55/2596] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/MLInlineAdvisor.cpp.o
3.511 [1968/54/2597] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/MemDerefPrinter.cpp.o
3.512 [1968/53/2598] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/MemoryBuiltins.cpp.o
3.512 [1968/52/2599] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/MemoryDependenceAnalysis.cpp.o
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3.514 [1968/45/2606] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/NoInferenceModelRunner.cpp.o
3.514 [1968/44/2607] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/ModuleSummaryAnalysis.cpp.o
3.515 [1968/43/2608] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/MustExecute.cpp.o
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3.515 [1968/39/2612] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/OptimizationRemarkEmitter.cpp.o
3.516 [1968/38/2613] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/OverflowInstAnalysis.cpp.o
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3.516 [1968/36/2615] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/PhiValues.cpp.o
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3.518 [1968/28/2623] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/ScalarEvolutionAliasAnalysis.cpp.o

```

</details>

https://github.com/llvm/llvm-project/pull/136139