[PATCH] D159202: [VPlan] Simplify redundant trunc (zext A) pairs to A.

[Mikael Holmén via Phabricator via llvm-commits]

uabelho added a comment.

Hi!

The following starts crashing with this patch:

  opt -passes="loop-vectorize" bbi-88061.ll -o /dev/null

It yields

  PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace.
  Stack dump:
  0.	Program arguments: ../../main-github/llvm/build-all/bin/opt -passes=loop-vectorize bbi-88061.ll -o /dev/null
   #0 0x0000560ede4fecf7 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (../../main-github/llvm/build-all/bin/opt+0x2f49cf7)
   #1 0x0000560ede4fc84e llvm::sys::RunSignalHandlers() (../../main-github/llvm/build-all/bin/opt+0x2f4784e)
   #2 0x0000560ede4ff3bf SignalHandler(int) Signals.cpp:0:0
   #3 0x00007f353ef87630 __restore_rt sigaction.c:0:0
   #4 0x0000560edea0b1d4 llvm::VPlanTransforms::optimize(llvm::VPlan&, llvm::ScalarEvolution&) (../../main-github/llvm/build-all/bin/opt+0x34561d4)
   #5 0x0000560ede8f6ec5 llvm::LoopVectorizationPlanner::buildVPlansWithVPRecipes(llvm::ElementCount, llvm::ElementCount) (../../main-github/llvm/build-all/bin/opt+0x3341ec5)
   #6 0x0000560ede8f659c llvm::LoopVectorizationPlanner::plan(llvm::ElementCount, unsigned int) (../../main-github/llvm/build-all/bin/opt+0x334159c)
   #7 0x0000560ede9098ab llvm::LoopVectorizePass::processLoop(llvm::Loop*) (../../main-github/llvm/build-all/bin/opt+0x33548ab)
   #8 0x0000560ede90f5b3 llvm::LoopVectorizePass::runImpl(llvm::Function&, llvm::ScalarEvolution&, llvm::LoopInfo&, llvm::TargetTransformInfo&, llvm::DominatorTree&, llvm::BlockFrequencyInfo*, llvm::TargetLibraryInfo*, llvm::DemandedBits&, llvm::AssumptionCache&, llvm::LoopAccessInfoManager&, llvm::OptimizationRemarkEmitter&, llvm::ProfileSummaryInfo*) (../../main-github/llvm/build-all/bin/opt+0x335a5b3)
   #9 0x0000560ede90ff18 llvm::LoopVectorizePass::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) (../../main-github/llvm/build-all/bin/opt+0x335af18)
  #10 0x0000560ede71ce4d llvm::detail::PassModel<llvm::Function, llvm::LoopVectorizePass, llvm::PreservedAnalyses, llvm::AnalysisManager<llvm::Function>>::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) (../../main-github/llvm/build-all/bin/opt+0x3167e4d)
  #11 0x0000560eddf1df64 llvm::PassManager<llvm::Function, llvm::AnalysisManager<llvm::Function>>::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) (../../main-github/llvm/build-all/bin/opt+0x2968f64)
  #12 0x0000560edc2e228d llvm::detail::PassModel<llvm::Function, llvm::PassManager<llvm::Function, llvm::AnalysisManager<llvm::Function>>, llvm::PreservedAnalyses, llvm::AnalysisManager<llvm::Function>>::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) (../../main-github/llvm/build-all/bin/opt+0xd2d28d)
  #13 0x0000560eddf2234e llvm::ModuleToFunctionPassAdaptor::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (../../main-github/llvm/build-all/bin/opt+0x296d34e)
  #14 0x0000560edc2e202d llvm::detail::PassModel<llvm::Module, llvm::ModuleToFunctionPassAdaptor, llvm::PreservedAnalyses, llvm::AnalysisManager<llvm::Module>>::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (../../main-github/llvm/build-all/bin/opt+0xd2d02d)
  #15 0x0000560eddf1d0f4 llvm::PassManager<llvm::Module, llvm::AnalysisManager<llvm::Module>>::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (../../main-github/llvm/build-all/bin/opt+0x29680f4)
  #16 0x0000560edbedfc13 llvm::runPassPipeline(llvm::StringRef, llvm::Module&, llvm::TargetMachine*, llvm::TargetLibraryInfoImpl*, llvm::ToolOutputFile*, llvm::ToolOutputFile*, llvm::ToolOutputFile*, llvm::StringRef, llvm::ArrayRef<llvm::PassPlugin>, llvm::opt_tool::OutputKind, llvm::opt_tool::VerifierKind, bool, bool, bool, bool, bool, bool, bool) (../../main-github/llvm/build-all/bin/opt+0x92ac13)
  #17 0x0000560edbeed25c main (../../main-github/llvm/build-all/bin/opt+0x93825c)
  #18 0x00007f353c6ba555 __libc_start_main (/lib64/libc.so.6+0x22555)
  #19 0x0000560edbed9db0 _start (../../main-github/llvm/build-all/bin/opt+0x924db0)
  Segmentation fault (core dumped)

F30136982: bbi-88061.ll <https://reviews.llvm.org/F30136982>


Repository:
  rG LLVM Github Monorepo

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