Hello,
I am getting segmentation fault in vshuffle implementation (lowerV32I64VectorShuffle) for v32i64.
After debugging and using bt i am getting the following messages;
(gdb) bt
#0 llvm::SDNode::isUndef (this=0x7fff00000001)
at /include/llvm/CodeGen/SelectionDAGNodes.h:556
#1 0x00000000009b8038 in llvm::SDValue::isUndef (this=0x7fffffff9d90)
at /include/llvm/CodeGen/SelectionDAGNodes.h:989
#2 0x0000000000970fed in lowerV16X128VectorShuffle (DL=…, VT=…, Mask=…,
V1=…, V2=…, DAG=…)
at /lib/Target/X86/X86ISelLowering.cpp:13902
#3 0x000000000096f263 in lowerV32I64VectorShuffle (DL=…, Mask=…,
Zeroable=…, V1=…, V2=…, Subtarget=…, DAG=…)
at /lib/Target/X86/X86ISelLowering.cpp:13995
#4 0x00000000009368ff in lower2048BitVectorShuffle (DL=…, Mask=…, VT=…,
V1=…, V2=…, Zeroable=…, Subtarget=…, DAG=…)
at /lib/Target/X86/X86ISelLowering.cpp:14159
#5 0x00000000008bd6ff in lowerVectorShuffle (Op=…, Subtarget=…, DAG=…)
at /lib/Target/X86/X86ISelLowering.cpp:15065
#6 0x00000000008b9573 in llvm::X86TargetLowering::LowerOperation (
this=0x3079f08, Op=…, DAG=…)
at /lib/Target/X86/X86ISelLowering.cpp:24922
#7 0x00000000016fc710 in (anonymous namespace)::SelectionDAGLegalize::LegalizeOp (this=0x7fffffffb7f0, Node=0x310e500)
at /lib/CodeGen/SelectionDAG/LegalizeDAG.cpp:1111
#8 0x00000000016fb54c in llvm::SelectionDAG::Legalize (this=0x304ca70)
at /lib/CodeGen/SelectionDAG/LegalizeDAG.cpp:4542
#9 0x0000000001815d45 in llvm::SelectionDAGISel::CodeGenAndEmitDAG (
this=0x304c5b0)
at /lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:831
#10 0x000000000181476e in llvm::SelectionDAGISel::SelectBasicBlock (
—Type to continue, or q to quit—
this=0x304c5b0, Begin=…, End=…, HadTailCall=@0x7fffffffc4fd: false)
at /lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:683
#11 0x00000000018145a5 in llvm::SelectionDAGISel::SelectAllBasicBlocks (
this=0x304c5b0, Fn=…)
at /lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:1558
#12 0x0000000001812459 in llvm::SelectionDAGISel::runOnMachineFunction (
this=0x304c5b0, mf=…)
at /lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:504
#13 0x0000000000834c6b in (anonymous namespace)::X86DAGToDAGISel::runOnMachineFunction (this=0x304c5b0, MF=…)
at /lib/Target/X86/X86ISelDAGToDAG.cpp:176
#14 0x000000000104dce1 in llvm::MachineFunctionPass::runOnFunction (
this=0x304c5b0, F=…)
at /lib/CodeGen/MachineFunctionPass.cpp:62
#15 0x000000000147823f in llvm::FPPassManager::runOnFunction (this=0x3049b70,
F=…) at /lib/IR/LegacyPassManager.cpp:1513
#16 0x0000000001478555 in llvm::FPPassManager::runOnModule (this=0x3049b70,
M=…) at /lib/IR/LegacyPassManager.cpp:1534
#17 0x0000000001478cea in (anonymous namespace)::MPPassManager::runOnModule (
this=0x3034e50, M=…)
at /lib/IR/LegacyPassManager.cpp:1590
#18 0x0000000001478816 in llvm::legacy::PassManagerImpl::run (this=0x303f4d0,
M=…) at /lib/IR/LegacyPassManager.cpp:1693
#19 0x0000000001479201 in llvm::legacy::PassManager::run (this=0x7fffffffd788,
M=…) at /lib/IR/LegacyPassManager.cpp:1724
#20 0x000000000076be0e in compileModule (argv=0x7fffffffdf78, Context=…)
at /tools/llc/llc.cpp:528
—Type to continue, or q to quit—
#21 0x000000000076a2f9 in main (argc=4, argv=0x7fffffffdf78)
at /tools/llc/llc.cpp:285
(gdb)
How to resolve this issue? Please help.
Thank You