http://llvm.org/bugs/show_bug.cgi?id=10897
Summary: Seg fault during NEON compilation with short3/4
division
Product: libraries
Version: trunk
Platform: PC
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P
Component: Backend: ARM
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected]
Created an attachment (id=7246)
--> (http://llvm.org/bugs/attachment.cgi?id=7246)
Failing bitcode file
Running llc targeting ARMv7 with NEON on the attached bitcode file results in
seg fault (and assertion failure if those are enabled). Note that this is a
reduced test case. I could not get the bug to manifest when I stopped doing
divides of both short3 and short4 types.
llc:
/srhines-dt/srhines/tot_llvm/llvm/lib/CodeGen/SelectionDAG/LegalizeTypes.h:190:
llvm::SDValue llvm::DAGTypeLegalizer::GetPromotedInteger(llvm::SDValue):
Assertion `PromotedOp.getNode() && "Operand wasn't promoted?"' failed.
0 llc 0x08a84e58
Stack dump:
0. Program arguments: /srhines-dt/srhines/tot_llvm/llvm-bin/bin/llc
tmp_srhines/fail.bc
1. Running pass 'Function Pass Manager' on module 'tmp_srhines/fail.bc'.
2. Running pass 'ARM Instruction Selection' on function '@math_test'
Aborted
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