[LLVMbugs] [Bug 23259] New: Error during code selection with broadcast instruction (AVX2) with optsize

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https://llvm.org/bugs/show_bug.cgi?id=23259

            Bug ID: 23259
           Summary: Error during code selection with broadcast instruction
                    (AVX2) with optsize
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: normal
          Priority: P
         Component: Backend: X86
          Assignee: unassignedbugs at nondot.org
          Reporter: Wolfgang_Pieb at playstation.sony.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

Created attachment 14212
  --> https://llvm.org/bugs/attachment.cgi?id=14212&action=edit
IR generated from a C++ test case using __builtin_shufflevector

The attached IR gets (with llc r235151):

LLVM ERROR: Cannot select: 0x502f8b0: v2i64 = X86ISD::VBROADCAST 0x502dec0
[ORD=7] [ID=18]
  0x502dec0: i64,ch = load 0x4fd3100, 0x502f690, 0x502dfd0<LD8[ConstantPool]>
[ORD=7] [ID=16]
    0x502f690: i64 = X86ISD::Wrapper 0x5030830 [ID=14]
      0x5030830: i64 = TargetConstantPool<i64 1> 0 [ID=11]
    0x502dfd0: i64 = undef [ID=4]
In function: _Z7test768Dv3_l

This was introduced with r218263.

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