1; RUN: opt < %s -basicaa -slp-vectorizer -dce -S -mtriple=x86_64-apple-macosx10.8.0 -mcpu=corei7
2
3target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
4target triple = "x86_64-apple-macosx10.8.0"
5
6%struct.DState = type { i32, i32 }
7
8@b = common global %struct.DState zeroinitializer, align 4
9@d = common global i32 0, align 4
10@c = common global i32 0, align 4
11@a = common global i32 0, align 4
12@e = common global i32 0, align 4
13
14define i32 @fn1() {
15entry:
16  %0 = load i32, i32* getelementptr inbounds (%struct.DState, %struct.DState* @b, i32 0, i32 0), align 4
17  %1 = load i32, i32* getelementptr inbounds (%struct.DState, %struct.DState* @b, i32 0, i32 1), align 4
18  %2 = load i32, i32* @d, align 4
19  %cond = icmp eq i32 %2, 0
20  br i1 %cond, label %sw.bb, label %save_state_and_return
21
22sw.bb:                                            ; preds = %entry
23  %3 = load i32, i32* @c, align 4
24  %and = and i32 %3, 7
25  store i32 %and, i32* @a, align 4
26  switch i32 %and, label %if.end [
27    i32 7, label %save_state_and_return
28    i32 0, label %save_state_and_return
29  ]
30
31if.end:                                           ; preds = %sw.bb
32  br label %save_state_and_return
33
34save_state_and_return:                            ; preds = %sw.bb, %sw.bb, %if.end, %entry
35  %t.0 = phi i32 [ 0, %if.end ], [ %0, %entry ], [ %0, %sw.bb ], [ %0, %sw.bb ]
36  %f.0 = phi i32 [ 0, %if.end ], [ %1, %entry ], [ 0, %sw.bb ], [ 0, %sw.bb ]
37  store i32 %t.0, i32* getelementptr inbounds (%struct.DState, %struct.DState* @b, i32 0, i32 0), align 4
38  store i32 %f.0, i32* getelementptr inbounds (%struct.DState, %struct.DState* @b, i32 0, i32 1), align 4
39  ret i32 undef
40}
41
42