|  | ; RUN: llc < %s | 
|  | ; PR2924 | 
|  |  | 
|  | target datalayout = | 
|  | "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" | 
|  | target triple = "i686-pc-linux-gnu" | 
|  |  | 
|  | define x86_stdcallcc { i32, i8* } @_D3std6string7toupperFAaZAa({ i32, i8* } %s) { | 
|  | entry_std.string.toupper: | 
|  | %tmp58 = load i32, i32* null | 
|  | %tmp59 = icmp eq i32 %tmp58, 0 | 
|  | %r.val = load { i32, i8* }, { i32, i8* }* null, align 8 | 
|  | %condtmp.0 = select i1 %tmp59, { i32, i8* } undef, { i32, i8* } %r.val | 
|  |  | 
|  | ret { i32, i8* } %condtmp.0 | 
|  | } | 
|  | define { } @empty({ } %s) { | 
|  | entry_std.string.toupper: | 
|  | %tmp58 = load i32, i32* null | 
|  | %tmp59 = icmp eq i32 %tmp58, 0 | 
|  | %r.val = load { }, { }* null, align 8 | 
|  | %condtmp.0 = select i1 %tmp59, { } undef, { } %r.val | 
|  | ret { } %condtmp.0 | 
|  | } |