https://llvm.org/bugs/show_bug.cgi?id=24225
Bug ID: 24225 Summary: [powerpc-ubuntu] code generation failure for OpenCL with some builtins with double3 Product: new-bugs Version: 3.6 Hardware: PC OS: Windows NT Status: NEW Severity: normal Priority: P Component: new bugs Assignee: unassignedb...@nondot.org Reporter: kanaga...@yahoo.ca CC: llvmbugs@cs.uiuc.edu Classification: Unclassified Created attachment 14633 --> https://llvm.org/bugs/attachment.cgi?id=14633&action=edit bugpoint simplified version of the coge gen bug Code generator bug from PPC64 The attached file causes a crash on PPC64 (Power 8) - Ubuntu 3.16.0-23-generic. The workload is from OpenCL built-ins. The bug was reproducible for built-ins such as fmax, fmin, fract with data type of double & vec size of 3 (=double3). The bug is found in high optimization (-O3). The last revision that it worked on was 3.6 r222776. The problem seem to be there for all 3.6.1 and 3.6.2. Last tested on 3.6.2 r242926. I have attached simplified version of the code generator bug created from bug point. Thanks! Here's the snap shot of the Error Info: llc: SelectionDAG.cpp:5911: void llvm::SelectionDAG::ReplaceAllUsesWith(llvm::SDNode *, llvm::SDNode *): Assertion `(!From->hasAnyUseOfValue(i) || From->getValueType(i) == To->getValueType(i)) && "Cannot use this version of ReplaceAllUsesWith!"' failed. #0 0x10a442a8 llvm::sys::PrintStackTrace(_IO_FILE*) (/home/kajank/compiler/llvm_362_r242926/Release+Asserts/bin/llc+0x10a442a8) #1 0x10a45090 PrintStackTraceSignalHandler(void*) (/home/kajank/compiler/llvm_362_r242926/Release+Asserts/bin/llc+0x10a45090) #2 0x10a45a3c SignalHandler(int) (/home/kajank/compiler/llvm_362_r242926/Release+Asserts/bin/llc+0x10a45a3c) 0 llc 0x0000000010a442a8 llvm::sys::PrintStackTrace(_IO_FILE*) + 120 1 llc 0x0000000010a45090 2 llc 0x0000000010a45a3c 3 0x00003fff910f0478 __kernel_sigtramp_rt64 + 0 4 libc.so.6 0x00003fff90c106b8 gsignal + 72 5 libc.so.6 0x00003fff90c1295c abort + 636 6 libc.so.6 0x00003fff90c06274 7 libc.so.6 0x00003fff90c06364 __assert_fail + 100 8 llc 0x0000000010278fac llvm::SelectionDAG::ReplaceAllUsesWith(llvm::SDNode*, llvm::SDNode*) + 952 9 llc 0x00000000102f972c llvm::SelectionDAGISel::DoInstructionSelection() + 948 10 llc 0x00000000102f8298 llvm::SelectionDAGISel::CodeGenAndEmitDAG() + 5316 11 llc 0x00000000102f6d58 llvm::SelectionDAGISel::SelectBasicBlock(llvm::ilist_iterator<llvm::Instruction const>, llvm::ilist_iterator<llvm::Instruction const>, bool&) + 252 12 llc 0x00000000102f5e80 llvm::SelectionDAGISel::SelectAllBasicBlocks(llvm::Function const&) + 7976 13 llc 0x00000000102f2ba4 llvm::SelectionDAGISel::runOnMachineFunction(llvm::MachineFunction&) + 1712 14 llc 0x0000000010152c40 15 llc 0x00000000104a08e0 llvm::MachineFunctionPass::runOnFunction(llvm::Function&) + 216 16 llc 0x0000000010947440 llvm::FPPassManager::runOnFunction(llvm::Function&) + 424 17 llc 0x00000000109477a8 llvm::FPPassManager::runOnModule(llvm::Module&) + 72 18 llc 0x0000000010947e58 llvm::legacy::PassManagerImpl::run(llvm::Module&) + 1088 19 llc 0x00000000109484cc llvm::legacy::PassManager::run(llvm::Module&) + 28 20 llc 0x00000000100f8b60 main + 7524 21 libc.so.6 0x00003fff90bf4e80 22 libc.so.6 0x00003fff90bf5074 __libc_start_main + 196 Stack dump: 0. Program arguments: llc bugpoint-reduced-simplified.bc 1. Running pass 'Function Pass Manager' on module 'bugpoint-reduced-simplified.bc'. 2. Running pass 'PowerPC DAG->DAG Pattern Instruction Selection' on function '@__fmax_double3_3D_exec' Aborted -- You are receiving this mail because: You are on the CC list for the bug.
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