[llvm] [GlobalISel] fdiv to fmul transform (PR #144305)

Tue Oct 7 23:40:51 PDT 2025

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `llvm-clang-x86_64-darwin` running on `doug-worker-3` while building `llvm` at step 5 "build-unified-tree".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/23/builds/14497

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

```
Step 5 (build-unified-tree) failure: build (failure)
...
142.973 [238/12/6031] Generating ../../../../share/scan-view/ScanView.py
143.143 [237/12/6032] Generating ../../../../share/scan-view/bugcatcher.ico
143.839 [236/12/6033] Generating ../../../../share/scan-view/startfile.py
147.322 [235/12/6034] Linking CXX shared module lib/SampleAnalyzerPlugin.dylib
147.609 [234/12/6035] Linking CXX shared module lib/CheckerDependencyHandlingAnalyzerPlugin.dylib
147.741 [233/12/6036] Linking CXX executable bin/clang-apply-replacements
147.742 [232/12/6037] Linking CXX shared module lib/CheckerOptionHandlingAnalyzerPlugin.dylib
148.234 [231/12/6038] Linking CXX static library lib/libclangTidyPlugin.a
148.955 [230/12/6039] Linking CXX executable bin/diagtool
150.126 [229/12/6040] Linking CXX executable bin/clang-doc
FAILED: bin/clang-doc 
: && /usr/bin/clang++ -fPIC -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wc++98-compat-extra-semi -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 -fno-common -Woverloaded-virtual -Wno-nested-anon-types -O3 -DNDEBUG -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX14.4.sdk -Wl,-search_paths_first -Wl,-headerpad_max_install_names -Wl,-dead_strip -Wl,-no_warn_duplicate_libraries tools/clang/tools/extra/clang-doc/tool/CMakeFiles/clang-doc.dir/ClangDocMain.cpp.o -o bin/clang-doc  -Wl,-rpath, at loader_path/../lib  lib/libLLVMSupport.a  lib/libLLVMBitstreamReader.a  lib/libLLVMFrontendOpenMP.a  lib/libclangAST.a  lib/libclangASTMatchers.a  lib/libclangBasic.a  lib/libclangDocSupport.a  lib/libclangFrontend.a  lib/libclangTooling.a  lib/libclangToolingCore.a  lib/libclangDoc.a  lib/libclangDocSupport.a  lib/libclangTooling.a  lib/libclangIndex.a  lib/libclangFrontend.a  lib/libclangDriver.a  lib/libLLVMWindowsDriver.a  lib/libclangParse.a  lib/libLLVMOption.a  lib/libclangSerialization.a  lib/libclangSema.a  lib/libclangAPINotes.a  lib/libclangEdit.a  lib/libclangAnalysis.a  lib/libclangASTMatchers.a  lib/libclangAST.a  lib/libclangSupport.a  lib/libclangFormat.a  lib/libclangToolingInclusions.a  lib/libclangToolingCore.a  lib/libclangRewrite.a  lib/libclangLex.a  lib/libclangBasic.a  lib/libLLVMFrontendOpenMP.a  lib/libLLVMScalarOpts.a  lib/libLLVMAggressiveInstCombine.a  lib/libLLVMInstCombine.a  lib/libLLVMFrontendOffloading.a  lib/libLLVMTransformUtils.a  lib/libLLVMObjectYAML.a  lib/libLLVMFrontendAtomic.a  lib/libLLVMAnalysis.a  lib/libLLVMFrontendHLSL.a  lib/libLLVMProfileData.a  lib/libLLVMSymbolize.a  lib/libLLVMDebugInfoGSYM.a  lib/libLLVMDebugInfoPDB.a  lib/libLLVMDebugInfoCodeView.a  lib/libLLVMDebugInfoMSF.a  lib/libLLVMDebugInfoBTF.a  lib/libLLVMDebugInfoDWARF.a  lib/libLLVMDebugInfoDWARFLowLevel.a  lib/libLLVMObject.a  lib/libLLVMMCParser.a  lib/libLLVMMC.a  lib/libLLVMIRReader.a  lib/libLLVMBitReader.a  lib/libLLVMAsmParser.a  lib/libLLVMCore.a  lib/libLLVMRemarks.a  lib/libLLVMBitstreamReader.a  lib/libLLVMTextAPI.a  lib/libLLVMBinaryFormat.a  lib/libLLVMFrontendDirective.a  lib/libLLVMTargetParser.a  lib/libLLVMSupport.a  -lm  /Library/Developer/CommandLineTools/SDKs/MacOSX14.4.sdk/usr/lib/libz.tbd  /usr/local/lib/libzstd.dylib  lib/libLLVMDemangle.a && :
clang: error: unable to execute command: Abort trap: 6
clang: error: linker command failed due to signal (use -v to see invocation)
150.607 [229/11/6041] Linking CXX static library lib/libclangIncludeFixerPlugin.a
151.132 [229/10/6042] Building CXX object lib/CodeGen/AsmPrinter/CMakeFiles/LLVMAsmPrinter.dir/AsmPrinter.cpp.o
154.430 [229/9/6043] Linking CXX executable bin/clang-refactor
154.502 [229/8/6044] Linking CXX executable bin/clang-diff
154.727 [229/7/6045] Linking CXX executable bin/clang-installapi
155.580 [229/6/6046] Building CXX object lib/LTO/CMakeFiles/LLVMLTO.dir/LTO.cpp.o
156.375 [229/5/6047] Linking CXX executable bin/modularize
156.497 [229/4/6048] Linking CXX executable bin/clang-change-namespace
156.989 [229/3/6049] Linking CXX executable bin/clang-reorder-fields
157.645 [229/2/6050] Linking CXX executable bin/clang-tidy
160.774 [229/1/6051] Building CXX object lib/CodeGen/GlobalISel/CMakeFiles/LLVMGlobalISel.dir/CombinerHelper.cpp.o
ninja: build stopped: subcommand failed.

```

</details>

https://github.com/llvm/llvm-project/pull/144305