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      1 ; RUN: llc < %s | FileCheck %s
      2 ; <rdar://problem/10497732>
      3 
      4 target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:32:64-v128:32:128-a0:0:32-n32"
      5 target triple = "thumbv7-apple-darwin10"
      6 
      7 @x1 = internal global i32 1
      8 @x2 = internal global i64 12
      9 
     10 define i64 @f() {
     11   %ax = load i32* @x1
     12   %a = zext i32 %ax to i64
     13   %b = load i64* @x2
     14   %c = add i64 %a, %b
     15   ret i64 %c
     16 }
     17 
     18 ; We can global-merge the i64 in theory, but the current code doesn't handle
     19 ; the alignment correctly; for the moment, just check that we don't do it.
     20 ; See also 
     21 
     22 ; CHECK-NOT: MergedGlobals
     23 ; CHECK: _x2
     24 ; CHECK-NOT: MergedGlobals
     25