1 ; RUN: opt -licm %s -disable-output 2 3 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" 4 target triple = "x86_64-apple-darwin10.0.0" 5 6 7 ; PR8068 8 @g_12 = external global i8, align 1 9 define void @test1() nounwind ssp { 10 entry: 11 br label %for.body 12 13 for.body: ; preds = %for.cond, %bb.nph 14 store i8 0, i8* @g_12, align 1 15 %tmp6 = load i8* @g_12, align 1 16 br label %for.cond 17 18 for.cond: ; preds = %for.body 19 store i8 %tmp6, i8* @g_12, align 1 20 br i1 false, label %for.cond.for.end10_crit_edge, label %for.body 21 22 for.cond.for.end10_crit_edge: ; preds = %for.cond 23 br label %for.end10 24 25 for.end10: ; preds = %for.cond.for.end10_crit_edge, %entry 26 ret void 27 } 28 29 ; PR8067 30 @g_8 = external global i32, align 4 31 32 define void @test2() noreturn nounwind ssp { 33 entry: 34 br label %for.body 35 36 for.body: ; preds = %for.body, %entry 37 %tmp7 = load i32* @g_8, align 4 38 store i32* @g_8, i32** undef, align 16 39 store i32 undef, i32* @g_8, align 4 40 br label %for.body 41 } 42 43 ; PR8102 44 define void @test3() { 45 entry: 46 %__first = alloca { i32* } 47 br i1 undef, label %for.cond, label %for.end 48 49 for.cond: ; preds = %for.cond, %entry 50 %tmp1 = getelementptr { i32*}* %__first, i32 0, i32 0 51 %tmp2 = load i32** %tmp1, align 4 52 %call = tail call i32* @test3helper(i32* %tmp2) 53 %tmp3 = getelementptr { i32*}* %__first, i32 0, i32 0 54 store i32* %call, i32** %tmp3, align 4 55 br i1 false, label %for.cond, label %for.end 56 57 for.end: ; preds = %for.cond, %entry 58 ret void 59 } 60 61 declare i32* @test3helper(i32*) 62 63 64 ; PR8602 65 @g_47 = external global i32, align 4 66 67 define void @test4() noreturn nounwind { 68 br label %1 69 70 ; <label>:1 ; preds = %1, %0 71 volatile store i32* @g_47, i32** undef, align 8 72 store i32 undef, i32* @g_47, align 4 73 br label %1 74 } 75
