1 ; RUN: opt -licm -disable-output < %s
2 ; RUN: opt -aa-pipeline=basic-aa -passes='require<aa>,require<targetir>,require<scalar-evolution>,require<opt-remark-emit>,loop(licm)' -disable-output < %s
4 target 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"
5 target triple = "x86_64-apple-darwin10.0.0"
9 @g_12 = external global i8, align 1
10 define void @test1() nounwind ssp {
14 for.body: ; preds = %for.cond, %bb.nph
15 store i8 0, i8* @g_12, align 1
16 %tmp6 = load i8, i8* @g_12, align 1
19 for.cond: ; preds = %for.body
20 store i8 %tmp6, i8* @g_12, align 1
21 br i1 false, label %for.cond.for.end10_crit_edge, label %for.body
23 for.cond.for.end10_crit_edge: ; preds = %for.cond
26 for.end10: ; preds = %for.cond.for.end10_crit_edge, %entry
31 @g_8 = external global i32, align 4
33 define void @test2() noreturn nounwind ssp {
37 for.body: ; preds = %for.body, %entry
38 %tmp7 = load i32, i32* @g_8, align 4
39 store i32* @g_8, i32** undef, align 16
40 store i32 undef, i32* @g_8, align 4
45 define void @test3() {
47 %__first = alloca { i32* }
48 br i1 undef, label %for.cond, label %for.end
50 for.cond: ; preds = %for.cond, %entry
51 %tmp1 = getelementptr { i32*}, { i32*}* %__first, i32 0, i32 0
52 %tmp2 = load i32*, i32** %tmp1, align 4
53 %call = tail call i32* @test3helper(i32* %tmp2)
54 %tmp3 = getelementptr { i32*}, { i32*}* %__first, i32 0, i32 0
55 store i32* %call, i32** %tmp3, align 4
56 br i1 false, label %for.cond, label %for.end
58 for.end: ; preds = %for.cond, %entry
62 declare i32* @test3helper(i32*)
66 @g_47 = external global i32, align 4
68 define void @test4() noreturn nounwind {
71 ; <label>:1 ; preds = %1, %0
72 store volatile i32* @g_47, i32** undef, align 8
73 store i32 undef, i32* @g_47, align 4