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

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `arc-builder` running on `arc-worker` while building `llvm` at step 5 "build-unified-tree".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/3/builds/15120

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

```
Step 5 (build-unified-tree) failure: build (failure)
...
491.957 [3067/16/1171] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/AliasAnalysis.cpp.o
492.245 [3066/16/1172] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/AliasAnalysisEvaluator.cpp.o
493.319 [3065/16/1173] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/CFGSCCPrinter.cpp.o
494.588 [3064/16/1174] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/AssumeBundleQueries.cpp.o
494.602 [3063/16/1175] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/AliasSetTracker.cpp.o
495.316 [3062/16/1176] Building CXX object lib/Transforms/Coroutines/CMakeFiles/LLVMCoroutines.dir/CoroFrame.cpp.o
495.447 [3061/16/1177] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/AssumptionCache.cpp.o
495.621 [3060/16/1178] Building CXX object lib/Transforms/Coroutines/CMakeFiles/LLVMCoroutines.dir/CoroSplit.cpp.o
495.631 [3059/16/1179] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/CFG.cpp.o
495.643 [3058/16/1180] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/ConstantFolding.cpp.o
FAILED: lib/Analysis/CMakeFiles/LLVMAnalysis.dir/ConstantFolding.cpp.o 
/usr/bin/c++ -DGTEST_HAS_RTTI=0 -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -Ilib/Analysis -I/buildbot/worker/arc-folder/llvm-project/llvm/lib/Analysis -Iinclude -I/buildbot/worker/arc-folder/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 -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 /buildbot/worker/arc-folder/llvm-project/llvm/lib/Analysis/ConstantFolding.cpp
c++: error: unrecognized command-line option '-ffp-exception-behavior=strict'
495.936 [3058/15/1181] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/BlockFrequencyInfoImpl.cpp.o
497.172 [3058/14/1182] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/CallGraphSCCPass.cpp.o
497.523 [3058/13/1183] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/CFGPrinter.cpp.o
498.155 [3058/12/1184] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/CallGraph.cpp.o
498.406 [3058/11/1185] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/BasicAliasAnalysis.cpp.o
498.521 [3058/10/1186] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/CmpInstAnalysis.cpp.o
498.811 [3058/9/1187] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/CallPrinter.cpp.o
498.888 [3058/8/1188] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/BlockFrequencyInfo.cpp.o
499.270 [3058/7/1189] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/BranchProbabilityInfo.cpp.o
499.819 [3058/6/1190] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/CaptureTracking.cpp.o
499.957 [3058/5/1191] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/CodeMetrics.cpp.o
500.101 [3058/4/1192] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/CostModel.cpp.o
500.146 [3058/3/1193] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/CGSCCPassManager.cpp.o
502.895 [3058/2/1194] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/CtxProfAnalysis.cpp.o
532.794 [3058/1/1195] Building CXX object lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/SLPVectorizer.cpp.o
ninja: build stopped: subcommand failed.

```

</details>

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