http://llvm.org/bugs/show_bug.cgi?id=4532
Summary: llc infloops in FoldingSetImpl::RemoveNode in llc
Product: new-bugs
Version: unspecified
Platform: Other
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P2
Component: new bugs
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected]
This shows up during "make check" on ARM.
llvm-as < test/CodeGen/2006-11-10-CycleInDAG.ll | llc -march=arm -mattr=+v6
[... wait forever ...]
0x007e5968 in llvm::FoldingSetImpl::RemoveNode ()
(gdb) bt
#0 0x007e5968 in llvm::FoldingSetImpl::RemoveNode ()
#1 0x004dce50 in llvm::SelectionDAG::RemoveNodeFromCSEMaps ()
#2 0x004ddd10 in llvm::SelectionDAG::DeleteNode ()
#3 0x004ba1dc in llvm::SelectionDAG::Combine ()
#4 0x00521d50 in llvm::SelectionDAGISel::CodeGenAndEmitDAG ()
#5 0x0052314c in llvm::SelectionDAGISel::SelectBasicBlock ()
#6 0x00523f78 in llvm::SelectionDAGISel::SelectAllBasicBlocks ()
#7 0x00525224 in llvm::SelectionDAGISel::runOnFunction ()
#8 0x00796f48 in llvm::FPPassManager::runOnFunction ()
#9 0x007971f0 in llvm::FunctionPassManagerImpl::run ()
#10 0x007973f8 in llvm::FunctionPassManager::run ()
#11 0x000d5a04 in main ()
The call to RemoveNode never finishes. This is with a Release-Asserts build,
built with "gcc version 4.3.3 (Debian 4.3.3-10)".
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