; REQUIRES: asserts ; RUN: opt -S -passes='default<O3>' %s %struct0 = type { i64, i64, i32, i64, i32 } %union0 = type { i32 } @g_6 = external dso_local global i32, align 1 @g_60 = external dso_local global i16, align 1 @g_79 = external dso_local global { i16, i16 }, align 1 @g_315 = external dso_local global %struct0, align 1 @g_359 = external dso_local global %struct0, align 1 define dso_local i16 @main(i16 %argc, i16** %argv) #0 { entry: %call2 = call i16 @func_1() unreachable } define internal i16 @func_1() #0 { entry: %call = call i16 @func_21(i32* undef, i32 undef, i32* undef) ret i16 undef } define internal i16 @func_21(i32* %p_22, i32 %p_23, i32* %p_24) #0 { entry: call void @func_34(%struct0* align 1 undef, i32 undef, i32 undef, i32* @g_6, %union0* byval(%union0) align 1 undef) unreachable } define internal void @func_34(%struct0* %agg.result, i32 %p_35, i32 %p_36, i32* %p_37, %union0* %p_38) #0 { entry: %p_37.addr = alloca i32*, align 1 %cleanup.dest.slot = alloca i32, align 1 store i32* %p_37, i32** %p_37.addr, align 1 br label %lbl_898 lbl_898: ; preds = %cleanup3097, %entry br label %lbl_1111 lbl_1111: ; preds = %cleanup3097, %lbl_898 %0 = load i32, i32* getelementptr inbounds (%struct0, %struct0* @g_359, i32 0, i32 4), align 1 %tobool1833 = icmp ne i32 %0, 0 br i1 %tobool1833, label %land.rhs1834, label %land.end1851 land.rhs1834: ; preds = %lbl_1111 store i16 0, i16* @g_60, align 1 br label %land.end1851 land.end1851: ; preds = %land.rhs1834, %lbl_1111 %1 = load i32*, i32** %p_37.addr, align 1 %2 = load i32, i32* %1, align 1 %tobool2351 = icmp ne i32 %2, 0 br i1 %tobool2351, label %if.then2352, label %if.else3029 if.then2352: ; preds = %land.end1851 %3 = load i16, i16* getelementptr inbounds ({ i16, i16 }, { i16, i16 }* @g_79, i32 0, i32 0), align 1, !tbaa !1 %tobool3011 = icmp ne i16 %3, 0 call void @llvm.assume(i1 %tobool3011) store i32 11, i32* %cleanup.dest.slot, align 1 br label %cleanup3097 if.else3029: ; preds = %land.end1851 store i32 3, i32* getelementptr inbounds (%struct0, %struct0* @g_315, i32 0, i32 4), align 1 store i32 132, i32* %cleanup.dest.slot, align 1 br label %cleanup3097 cleanup3097: ; preds = %if.else3029, %if.then2352 %cleanup.dest3113 = load i32, i32* %cleanup.dest.slot, align 1 switch i32 %cleanup.dest3113, label %cleanup3402 [ i32 132, label %lbl_1111 i32 11, label %lbl_898 ] cleanup3402: ; preds = %cleanup3097 ret void } ; Function Attrs: nofree nosync nounwind willreturn declare void @llvm.assume(i1 noundef) #1 attributes #0 = { "use-soft-float"="false" } attributes #1 = { nofree nosync nounwind willreturn } !llvm.ident = !{!0} !0 = !{!"clang version 13.0.0"} !1 = !{!2, !2, i64 0} !2 = !{!"omnipotent char", !3, i64 0} !3 = !{!"Simple C/C++ TBAA"}