[llvm] [VPlan] Add VPIRInstruction, use for exit block live-outs. (PR #100735)

Sat Sep 14 13:41:11 PDT 2024

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `ppc64le-lld-multistage-test` running on `ppc64le-lld-multistage-test` while building `llvm` at step 12 "build-stage2-unified-tree".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/168/builds/3322

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

```
Step 12 (build-stage2-unified-tree) failure: build (failure)
...
16.692 [1/8/15] Building CXX object tools/clang/utils/TableGen/CMakeFiles/clang-tblgen.dir/TableGen.cpp.o
32.235 [1/7/16] Building CXX object tools/clang/utils/TableGen/CMakeFiles/clang-tblgen.dir/ClangOpenCLBuiltinEmitter.cpp.o
38.925 [1/6/17] Building CXX object tools/clang/utils/TableGen/CMakeFiles/clang-tblgen.dir/SveEmitter.cpp.o
41.145 [1/5/18] Building CXX object tools/clang/utils/TableGen/CMakeFiles/clang-tblgen.dir/ClangDiagnosticsEmitter.cpp.o
51.963 [1/4/19] Building CXX object tools/clang/utils/TableGen/CMakeFiles/clang-tblgen.dir/MveEmitter.cpp.o
52.562 [1/3/20] Building CXX object tools/clang/utils/TableGen/CMakeFiles/clang-tblgen.dir/RISCVVEmitter.cpp.o
55.875 [1/2/21] Building CXX object tools/clang/utils/TableGen/CMakeFiles/clang-tblgen.dir/NeonEmitter.cpp.o
74.840 [1/1/22] Building CXX object tools/clang/utils/TableGen/CMakeFiles/clang-tblgen.dir/ClangAttrEmitter.cpp.o
74.898 [0/1/23] Linking CXX executable bin/clang-tblgen
200.476 [3840/198/2218] Building CXX object lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/LoopVectorize.cpp.o
FAILED: lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/LoopVectorize.cpp.o 
ccache /home/buildbots/llvm-external-buildbots/workers/ppc64le-lld-multistage-test/ppc64le-lld-multistage-test/install/stage1/bin/clang++ -DGTEST_HAS_RTTI=0 -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-lld-multistage-test/ppc64le-lld-multistage-test/build/stage2/lib/Transforms/Vectorize -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-lld-multistage-test/ppc64le-lld-multistage-test/llvm-project/llvm/lib/Transforms/Vectorize -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-lld-multistage-test/ppc64le-lld-multistage-test/build/stage2/include -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-lld-multistage-test/ppc64le-lld-multistage-test/llvm-project/llvm/include -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror -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 -ffunction-sections -fdata-sections -O3 -DNDEBUG -std=c++17  -fno-exceptions -funwind-tables -fno-rtti -UNDEBUG -MD -MT lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/LoopVectorize.cpp.o -MF lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/LoopVectorize.cpp.o.d -o lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/LoopVectorize.cpp.o -c /home/buildbots/llvm-external-buildbots/workers/ppc64le-lld-multistage-test/ppc64le-lld-multistage-test/llvm-project/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
/home/buildbots/llvm-external-buildbots/workers/ppc64le-lld-multistage-test/ppc64le-lld-multistage-test/llvm-project/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp:8729:15: error: variable 'ExitBB' set but not used [-Werror,-Wunused-but-set-variable]
 8729 |   BasicBlock *ExitBB = nullptr;
      |               ^
1 error generated.
212.333 [3840/35/2381] Building CXX object lib/Transforms/Scalar/CMakeFiles/LLVMScalarOpts.dir/LoopStrengthReduce.cpp.o
212.713 [3840/33/2383] Building CXX object lib/CodeGen/CMakeFiles/LLVMCodeGen.dir/MachinePipeliner.cpp.o
212.786 [3840/32/2384] Building CXX object lib/AsmParser/CMakeFiles/LLVMAsmParser.dir/LLParser.cpp.o
212.804 [3840/31/2385] Building CXX object unittests/TargetParser/CMakeFiles/TargetParserTests.dir/TargetParserTest.cpp.o
213.241 [3840/30/2386] Building CXX object lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/SimplifyCFG.cpp.o
213.864 [3840/29/2387] Building CXX object lib/Transforms/IPO/CMakeFiles/LLVMipo.dir/SampleProfile.cpp.o
214.441 [3840/28/2388] Building CXX object tools/llvm-profdata/CMakeFiles/llvm-profdata.dir/llvm-profdata.cpp.o
214.529 [3840/27/2389] Building CXX object lib/Transforms/IPO/CMakeFiles/LLVMipo.dir/Attributor.cpp.o
214.907 [3840/26/2390] Building CXX object lib/Object/CMakeFiles/LLVMObject.dir/ELFObjectFile.cpp.o
215.125 [3840/25/2391] Building CXX object unittests/Support/CMakeFiles/SupportTests.dir/MathExtrasTest.cpp.o
215.215 [3840/24/2392] Building CXX object lib/CodeGen/SelectionDAG/CMakeFiles/LLVMSelectionDAG.dir/SelectionDAGBuilder.cpp.o
215.453 [3840/23/2393] Building CXX object lib/CodeGen/SelectionDAG/CMakeFiles/LLVMSelectionDAG.dir/SelectionDAG.cpp.o
215.544 [3840/22/2394] Building CXX object lib/Object/CMakeFiles/LLVMObject.dir/ELF.cpp.o
216.192 [3840/21/2395] Building CXX object unittests/ADT/CMakeFiles/ADTTests.dir/APFloatTest.cpp.o
216.317 [3840/20/2396] Building CXX object lib/Frontend/OpenMP/CMakeFiles/LLVMFrontendOpenMP.dir/OMPIRBuilder.cpp.o
218.641 [3840/19/2397] Building CXX object unittests/IR/CMakeFiles/IRTests.dir/MetadataTest.cpp.o
218.886 [3840/18/2398] Building CXX object lib/CodeGen/CMakeFiles/LLVMCodeGen.dir/CodeGenPrepare.cpp.o
218.936 [3840/17/2399] Building CXX object unittests/ProfileData/CMakeFiles/ProfileDataTests.dir/InstrProfTest.cpp.o
219.888 [3840/16/2400] Building CXX object lib/Passes/CMakeFiles/LLVMPasses.dir/PassBuilderPipelines.cpp.o
220.563 [3840/15/2401] Building CXX object lib/Transforms/IPO/CMakeFiles/LLVMipo.dir/MemProfContextDisambiguation.cpp.o
221.434 [3840/14/2402] Building CXX object unittests/ADT/CMakeFiles/ADTTests.dir/DenseMapTest.cpp.o
222.230 [3840/13/2403] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/ScalarEvolution.cpp.o
222.912 [3840/12/2404] Building CXX object unittests/SandboxIR/CMakeFiles/SandboxIRTests.dir/SandboxIRTest.cpp.o
224.735 [3840/11/2405] Building CXX object unittests/Frontend/CMakeFiles/LLVMFrontendTests.dir/OpenMPDecompositionTest.cpp.o
224.772 [3840/10/2406] Building CXX object tools/obj2yaml/CMakeFiles/obj2yaml.dir/elf2yaml.cpp.o
226.184 [3840/9/2407] Building CXX object lib/Transforms/IPO/CMakeFiles/LLVMipo.dir/AttributorAttributes.cpp.o
227.346 [3840/8/2408] Building CXX object lib/CodeGen/SelectionDAG/CMakeFiles/LLVMSelectionDAG.dir/DAGCombiner.cpp.o
227.712 [3840/7/2409] Building CXX object unittests/Transforms/Scalar/CMakeFiles/ScalarTests.dir/LoopPassManagerTest.cpp.o
228.033 [3840/6/2410] Building CXX object unittests/Frontend/CMakeFiles/LLVMFrontendTests.dir/OpenMPIRBuilderTest.cpp.o
232.439 [3840/5/2411] Building CXX object unittests/IR/CMakeFiles/IRTests.dir/PassBuilderCallbacksTest.cpp.o
238.032 [3840/4/2412] Building CXX object lib/Transforms/IPO/CMakeFiles/LLVMipo.dir/OpenMPOpt.cpp.o
274.739 [3840/3/2413] Building CXX object lib/Transforms/Vectorize/CMakeFiles/LLVMVectorize.dir/SLPVectorizer.cpp.o
276.114 [3840/2/2414] Building CXX object lib/Passes/CMakeFiles/LLVMPasses.dir/PassBuilder.cpp.o

```

</details>

https://github.com/llvm/llvm-project/pull/100735