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: movzbl ({{%rdi|%rcx}}), %eax
9
10define void @foo(i8* %p, i32* %q) {
11entry:
12  %t = load i8* %p
13  %a = icmp slt i8 %t, 20
14  br i1 %a, label %true, label %false
15true:
16  %s = zext i8 %t to i32
17  store i32 %s, i32* %q
18  ret void
19false:
20  ret void
21}
22