https://bugs.llvm.org/show_bug.cgi?id=48764
Bug ID: 48764
Summary: [Unroll-and-jam] Assertion `IDomNode && "Not immediate
dominator specified for block!"' failed.
Product: libraries
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: Scalar Optimizations
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Created attachment 24384
--> https://bugs.llvm.org/attachment.cgi?id=24384&action=edit
reduced testcase
opt -mcpu=z14 -O3 -enable-unroll-and-jam -allow-unroll-and-jam
-unroll-and-jam-count=8 tc_crash0_aftercreduce.ll -o - S
#9 0x0000000003a36a9c llvm::UnrollAndJamLoop(llvm::Loop*, unsigned int,
unsigned int, unsigned int, bool, llvm::LoopInfo*, llvm::ScalarEvolution*,
llvm::DominatorTree*, llvm::AssumptionCache*, llvm::TargetTransformInfo const*,
llvm::OptimizationRemarkEmitter*, llvm::Loop**) (./bin/opt+0x3a36a9c)
#10 0x000000000372f036 tryToUnrollAndJamLoop(llvm::Function&,
llvm::DominatorTree&, llvm::LoopInfo&, llvm::ScalarEvolution&,
llvm::TargetTransformInfo const&, llvm::AssumptionCache&,
llvm::DependenceInfo&, llvm::OptimizationRemarkEmitter&, int) (.isra.0)
(./bin/opt+0x372f036)
#11 0x000000000373054e (anonymous
namespace)::LoopUnrollAndJam::runOnFunction(llvm::Function&)
(./bin/opt+0x373054e)
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