http://llvm.org/bugs/show_bug.cgi?id=4226
Summary: ARM does not lower all vshifts
Product: libraries
Version: 2.5
Platform: PC
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P2
Component: Backend: ARM
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected]
When running the included testcase in llvm test/CodeGen/X86/vshift_split.ll
using the arm backend:
llvm-as < test/CodeGen/X86/vshift_split.ll | llc -march=arm
llc:
/usr/src/openembedded/overo/tmp/work/armv7a-angstrom-linux-gnueabi/llvm2.6-2.5+svnr20090511-r0/trunk/lib/Target/ARM/ARMISelLowering.cpp:1565:
llvm::SDValue ExpandSRx(llvm::SDNode*, llvm::SelectionDAG&, const
llvm::ARMSubtarget*): Assertion `N->getValueType(0) == MVT::i64 &&
(N->getOpcode() == ISD::SRL || N->getOpcode() == ISD::SRA) && "Unknown shift to
lower!"' failed.
Stack dump:
0. Program arguments: llc -march=arm
1. Running pass 'ARM Instruction Selection' on function '@update'
Aborted
r...@overo:~/llvm-test/fail#
I have tested this on both 2.5 and svn trunk
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