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      1 ; RUN: llc < %s
      2 ; PR2924
      3 
      4 target datalayout =
      5 "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32"
      6 target triple = "i686-pc-linux-gnu"
      7 
      8 define x86_stdcallcc { i32, i8* } @_D3std6string7toupperFAaZAa({ i32, i8* } %s) {
      9 entry_std.string.toupper:
     10         %tmp58 = load i32, i32* null
     11         %tmp59 = icmp eq i32 %tmp58, 0
     12         %r.val = load { i32, i8* }, { i32, i8* }* null, align 8
     13         %condtmp.0 = select i1 %tmp59, { i32, i8* } undef, { i32, i8* } %r.val 
     14 
     15         ret { i32, i8* } %condtmp.0
     16 }
     17 define { } @empty({ } %s) {
     18 entry_std.string.toupper:
     19         %tmp58 = load i32, i32* null
     20         %tmp59 = icmp eq i32 %tmp58, 0
     21         %r.val = load { }, { }* null, align 8
     22         %condtmp.0 = select i1 %tmp59, { } undef, { } %r.val
     23         ret { } %condtmp.0
     24 }
     25