[LLVMbugs] [Bug 4001] New: assertion failed in lshr <2 x i64> without sse2

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=4001

           Summary: assertion failed in lshr <2 x i64> without sse2
           Product: libraries
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Backend: X86
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: nicholas at mxc.ca
                CC: llvmbugs at cs.uiuc.edu


Given test/CodeGen/X86/vshift_split.ll, which for reference reads:
  define <2 x i64> @update(<2 x i64> %val) nounwind readnone {
  entry:
          %shr = lshr <2 x i64> %val, < i64 2, i64 2 >            ; <<2 x i64>>
[#uses=1]
          ret <2 x i64> %shr
  }
running llvm-as < vshift_split.ll | llc -march=-sse2 triggers an assertion
failure:
  llc: LegalizeDAG.cpp:517:
void<unnamed>::SelectionDAGLegalize::HandleOp(llvm::SDValue): Assertion
`(TypesNeedLegalizing || getTypeAction(VT) == Legal || IsLegalizingCallArgs ||
Op.getOpcode() == ISD::TargetConstant || Op.getOpcode() == ISD::BUILD_VECTOR)
&& "Illegal type introduced after type legalization?"' failed.
  0   llc 0x089a99e2
  1   llc 0x089a9f89
  2       0xffffe400 __kernel_sigreturn + 0
  Stack dump:
  0.      Program arguments: llc -mattr=-sse2 
  1.      Running pass 'X86 DAG->DAG Instruction Selection' on function
'@update'

It'd be nice if this didn't crash.


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