[llvm] [VP] Merge ExpandVP pass into PreISelIntrinsicLowering (PR #101652)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `llvm-clang-x86_64-expensive-checks-debian` running on `gribozavr4` while building `llvm` at step 6 "test-build-unified-tree-check-all".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/16/builds/2964

Here is the relevant piece of the build log for the reference:
```
Step 6 (test-build-unified-tree-check-all) failure: test (failure)
******************** TEST 'LLVM :: Transforms/PreISelIntrinsicLowering/expand-vp.ll' FAILED ********************
Exit Code: 2

Command Output (stderr):
--
RUN: at line 2: /b/1/llvm-clang-x86_64-expensive-checks-debian/build/bin/opt -passes=pre-isel-intrinsic-lowering --expandvp-override-evl-transform=Legal --expandvp-override-mask-transform=Legal -S < /b/1/llvm-clang-x86_64-expensive-checks-debian/llvm-project/llvm/test/Transforms/PreISelIntrinsicLowering/expand-vp.ll | /b/1/llvm-clang-x86_64-expensive-checks-debian/build/bin/FileCheck /b/1/llvm-clang-x86_64-expensive-checks-debian/llvm-project/llvm/test/Transforms/PreISelIntrinsicLowering/expand-vp.ll --check-prefix=LEGAL_LEGAL
+ /b/1/llvm-clang-x86_64-expensive-checks-debian/build/bin/opt -passes=pre-isel-intrinsic-lowering --expandvp-override-evl-transform=Legal --expandvp-override-mask-transform=Legal -S
+ /b/1/llvm-clang-x86_64-expensive-checks-debian/build/bin/FileCheck /b/1/llvm-clang-x86_64-expensive-checks-debian/llvm-project/llvm/test/Transforms/PreISelIntrinsicLowering/expand-vp.ll --check-prefix=LEGAL_LEGAL
RUN: at line 3: /b/1/llvm-clang-x86_64-expensive-checks-debian/build/bin/opt -passes=pre-isel-intrinsic-lowering --expandvp-override-evl-transform=Discard --expandvp-override-mask-transform=Legal -S < /b/1/llvm-clang-x86_64-expensive-checks-debian/llvm-project/llvm/test/Transforms/PreISelIntrinsicLowering/expand-vp.ll | /b/1/llvm-clang-x86_64-expensive-checks-debian/build/bin/FileCheck /b/1/llvm-clang-x86_64-expensive-checks-debian/llvm-project/llvm/test/Transforms/PreISelIntrinsicLowering/expand-vp.ll --check-prefix=DISCARD_LEGAL
+ /b/1/llvm-clang-x86_64-expensive-checks-debian/build/bin/FileCheck /b/1/llvm-clang-x86_64-expensive-checks-debian/llvm-project/llvm/test/Transforms/PreISelIntrinsicLowering/expand-vp.ll --check-prefix=DISCARD_LEGAL
+ /b/1/llvm-clang-x86_64-expensive-checks-debian/build/bin/opt -passes=pre-isel-intrinsic-lowering --expandvp-override-evl-transform=Discard --expandvp-override-mask-transform=Legal -S
LLVM ERROR: Function @test_vp_int_v8 changed by PreISelIntrinsicLoweringPass without invalidating analyses
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace.
Stack dump:
0.	Program arguments: /b/1/llvm-clang-x86_64-expensive-checks-debian/build/bin/opt -passes=pre-isel-intrinsic-lowering --expandvp-override-evl-transform=Discard --expandvp-override-mask-transform=Legal -S
1.	Running pass "pre-isel-intrinsic-lowering" on module "<stdin>"
 #0 0x000000000446a357 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/b/1/llvm-clang-x86_64-expensive-checks-debian/build/bin/opt+0x446a357)
 #1 0x0000000004467e1e llvm::sys::RunSignalHandlers() (/b/1/llvm-clang-x86_64-expensive-checks-debian/build/bin/opt+0x4467e1e)
 #2 0x000000000446aa2f SignalHandler(int) Signals.cpp:0:0
 #3 0x00007fb8295be140 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x13140)
 #4 0x00007fb8290d2ce1 raise (/lib/x86_64-linux-gnu/libc.so.6+0x38ce1)
 #5 0x00007fb8290bc537 abort (/lib/x86_64-linux-gnu/libc.so.6+0x22537)
 #6 0x00000000043cbc2a llvm::report_fatal_error(llvm::Twine const&, bool) (/b/1/llvm-clang-x86_64-expensive-checks-debian/build/bin/opt+0x43cbc2a)
 #7 0x00000000027858d5 void llvm::detail::UniqueFunctionBase<void, llvm::StringRef, llvm::Any, llvm::PreservedAnalyses const&>::CallImpl<llvm::PreservedCFGCheckerInstrumentation::registerCallbacks(llvm::PassInstrumentationCallbacks&, llvm::AnalysisManager<llvm::Module>&)::$_18>(void*, llvm::StringRef, llvm::Any&, llvm::PreservedAnalyses const&) StandardInstrumentations.cpp:0:0
 #8 0x00000000042983fe llvm::PassManager<llvm::Module, llvm::AnalysisManager<llvm::Module>>::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/b/1/llvm-clang-x86_64-expensive-checks-debian/build/bin/opt+0x42983fe)
 #9 0x000000000083ba90 llvm::runPassPipeline(llvm::StringRef, llvm::Module&, llvm::TargetMachine*, llvm::TargetLibraryInfoImpl*, llvm::ToolOutputFile*, llvm::ToolOutputFile*, llvm::ToolOutputFile*, llvm::StringRef, llvm::ArrayRef<llvm::PassPlugin>, llvm::ArrayRef<std::function<void (llvm::PassBuilder&)>>, llvm::opt_tool::OutputKind, llvm::opt_tool::VerifierKind, bool, bool, bool, bool, bool, bool, bool) (/b/1/llvm-clang-x86_64-expensive-checks-debian/build/bin/opt+0x83ba90)
#10 0x0000000000830bb5 optMain (/b/1/llvm-clang-x86_64-expensive-checks-debian/build/bin/opt+0x830bb5)
#11 0x00007fb8290bdd0a __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x23d0a)
#12 0x000000000082cf1a _start (/b/1/llvm-clang-x86_64-expensive-checks-debian/build/bin/opt+0x82cf1a)
FileCheck error: '<stdin>' is empty.
FileCheck command line:  /b/1/llvm-clang-x86_64-expensive-checks-debian/build/bin/FileCheck /b/1/llvm-clang-x86_64-expensive-checks-debian/llvm-project/llvm/test/Transforms/PreISelIntrinsicLowering/expand-vp.ll --check-prefix=DISCARD_LEGAL

--

********************


```

https://github.com/llvm/llvm-project/pull/101652