[LLVMbugs] [Bug 19765] New: [ARM64] Cannot select: 0x3679038: v4i16 = concat_vectors 0x3679140, 0x3674f08 [ORD=2]

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=19765

            Bug ID: 19765
           Summary: [ARM64] Cannot select: 0x3679038: v4i16 =
                    concat_vectors 0x3679140, 0x3674f08 [ORD=2]
           Product: tools
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: llc
          Assignee: unassignedbugs at nondot.org
          Reporter: mcrosier at codeaurora.org
                CC: apazos at codeaurora.org, llvmbugs at cs.uiuc.edu,
                    t.p.northover at gmail.com
    Classification: Unclassified

Test case:
target datalayout = "e-m:e-i64:64-i128:128-n8:16:32:64-S128"
target triple = "arm64-none-linux-gnu"

define <4 x float> @foo() {
  %1 = icmp ne <4 x i64> undef, zeroinitializer
  %2 = select <4 x i1> %1, <4 x float> undef, <4 x float> undef
  %3 = fadd <4 x float> zeroinitializer, %2
  ret <4 x float> %3
}

Reproduce with:
llc -O1 test.ll

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