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      1 ; RUN: llc < %s -mtriple=x86_64-linux | FileCheck %s
      2 ; RUN: llc < %s -mtriple=x86_64-win64 | FileCheck %s
      3 ; rdar://7304838
      4 
      5 ; CodeGenPrepare should move the zext into the block with the load
      6 ; so that SelectionDAG can select it with the load.
      7 
      8 ; CHECK: movsbl ({{%rdi|%rcx}}), %eax
      9 
     10 define void @foo(i8* %p, i32* %q) {
     11 entry:
     12   %t = load i8* %p
     13   %a = icmp slt i8 %t, 20
     14   br i1 %a, label %true, label %false
     15 true:
     16   %s = zext i8 %t to i32
     17   store i32 %s, i32* %q
     18   ret void
     19 false:
     20   ret void
     21 }
     22