[LLVMbugs] [Bug 2484] New: <4 x float> SSE shuffle breaks without SSE2

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=2484

           Summary: <4 x float> SSE shuffle breaks without SSE2
           Product: new-bugs
           Version: unspecified
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: new bugs
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: sharparrow1 at yahoo.com
                CC: llvmbugs at cs.uiuc.edu


Testcase:
define <4 x float> @f4523(<4 x float> %a,<4 x float> %b) nounwind {
entry:
%shuffle = shufflevector <4 x float> %a, <4 x float> %b, <4 x i32> <i32 4,i32
5,i32 2,i32 3>
ret <4 x float> %shuffle
}

When compiled with llvm-as | llc -mattr=-sse2, llc aborts with the following
error:
Cannot yet select: 0x8a47420: v4f32 = vector_shuffle 0x8a472b0, 0x8a47358,
0x8a471a0<4,5,2,3>

Not particularly important, but I ran into it while testing some shuffles.


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