opt -loop-vectorizer fails with Assertion `Ingredient2Recipe[I] != nullptr && "Ingredient doesn't have a recipe"' failed. #43979
Description
| Bugzilla Link | 44634 |
| Resolution | FIXED |
| Resolved on | Jan 29, 2020 13:06 |
| Version | trunk |
| OS | Linux |
| Blocks | #43900 |
| Attachments | bbi-37904.ll reproducer |
| CC | @fhahn,@zmodem |
| Fixed by commit(s) | a911fef |
Extended Description
opt -loop-vectorize -S -o - bbi-37904.ll
hits an assertion
opt: ../lib/Transforms/Vectorize/VPRecipeBuilder.h:91: llvm::VPRecipeBase *llvm::VPRecipeBuilder::getRecipe(llvm::Instruction *): Assertion `Ingredient2Recipe[I] != nullptr && "Ingredient doesn't have a recipe"' failed.
Stack dump:
0. Program arguments: build-all-builtins/bin/opt -loop-vectorize -S -o - bbi-37904.ll
-
Running pass 'Function Pass Manager' on module 'bbi-37904.ll'. -
Running pass 'Loop Vectorization' on function '@g'
#0 0x0000000003e7dcf4 PrintStackTraceSignalHandler(void*) (build-all-builtins/bin/opt+0x3e7dcf4)
#1 0x0000000003e7b8be llvm::sys::RunSignalHandlers() (build-all-builtins/bin/opt+0x3e7b8be)
#2 0x0000000003e7e0fc SignalHandler(int) (build-all-builtins/bin/opt+0x3e7e0fc)
#3 0x00007fce53a1a890 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x12890)
#4 0x00007fce524c3e97 raise /build/glibc-OTsEL5/glibc-2.27/signal/../sysdeps/unix/sysv/linux/raise.c:51:0
#5 0x00007fce524c5801 abort /build/glibc-OTsEL5/glibc-2.27/stdlib/abort.c:81:0
#6 0x00007fce524b539a __assert_fail_base /build/glibc-OTsEL5/glibc-2.27/assert/assert.c:89:0
#7 0x00007fce524b5412 (/lib/x86_64-linux-gnu/libc.so.6+0x30412)
#8 0x0000000003fcad96 llvm::VPRecipeBuilder::getRecipe(llvm::Instruction*) (build-all-builtins/bin/opt+0x3fcad96)
#9 0x0000000003fc9483 llvm::LoopVectorizationPlanner::buildVPlanWithVPRecipes(llvm::VFRange&, llvm::SmallPtrSetImplllvm::Value*&, llvm::SmallPtrSetImplllvm::Instruction*&) (build-all-builtins/bin/opt+0x3fc9483)
#10 0x0000000003fc36af llvm::LoopVectorizationPlanner::buildVPlansWithVPRecipes(unsigned int, unsigned int) (build-all-builtins/bin/opt+0x3fc36af)
#11 0x0000000003fc2f02 llvm::LoopVectorizationPlanner::plan(unsigned int) (build-all-builtins/bin/opt+0x3fc2f02)
#12 0x0000000003fcdb56 llvm::LoopVectorizePass::processLoop(llvm::Loop*) (build-all-builtins/bin/opt+0x3fcdb56)
#13 0x0000000003fd0b64 llvm::LoopVectorizePass::runImpl(llvm::Function&, llvm::ScalarEvolution&, llvm::LoopInfo&, llvm::TargetTransformInfo&, llvm::DominatorTree&, llvm::BlockFrequencyInfo&, llvm::TargetLibraryInfo*, llvm::DemandedBits&, llvm::AAResults&, llvm::AssumptionCache&, std::function<llvm::LoopAccessInfo const& (llvm::Loop&)>&, llvm::OptimizationRemarkEmitter&, llvm::ProfileSummaryInfo*) (build-all-builtins/bin/opt+0x3fd0b64)
#14 0x0000000003fd5588 (anonymous namespace)::LoopVectorize::runOnFunction(llvm::Function&) (build-all-builtins/bin/opt+0x3fd5588)
#15 0x00000000036fefd3 llvm::FPPassManager::runOnFunction(llvm::Function&) (build-all-builtins/bin/opt+0x36fefd3)
#16 0x00000000036ff2b8 llvm::FPPassManager::runOnModule(llvm::Module&) (build-all-builtins/bin/opt+0x36ff2b8)
#17 0x00000000036ff91d llvm::legacy::PassManagerImpl::run(llvm::Module&) (build-all-builtins/bin/opt+0x36ff91d)
#18 0x0000000002095a93 main (build-all-builtins/bin/opt+0x2095a93)
#19 0x00007fce524a6b97 __libc_start_main /build/glibc-OTsEL5/glibc-2.27/csu/../csu/libc-start.c:344:0
#20 0x000000000207d02a _start (build-all-builtins/bin/opt+0x207d02a)
Abort (core dumped)
It starts failing with commit 9d24933:
Recommit f0c2a5a "[LV] Generalize conditions for sinking instrs for first order recurrences."