1; RUN: opt < %s -passes=gvn,simplifycfg -simplifycfg-require-and-preserve-domtree=1 -disable-output 2; PR867 3 4target datalayout = "E-p:32:32" 5target triple = "powerpc-unknown-linux-gnu" 6 %struct.CUMULATIVE_ARGS = type { i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32 } 7 %struct.eh_status = type opaque 8 %struct.emit_status = type { i32, i32, ptr, ptr, ptr, i32, %struct.location_t, i32, ptr, ptr } 9 %struct.expr_status = type { i32, i32, i32, ptr, ptr, ptr } 10 %struct.function = type { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, i32, i32, i32, i32, ptr, %struct.CUMULATIVE_ARGS, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, i8, i32, i64, ptr, ptr, ptr, ptr, ptr, i32, ptr, i32, i32, ptr, ptr, i32, i32, i32, ptr, i32, i32, i8, i8, ptr, ptr, i32, i32, i32, i32, %struct.location_t, ptr, ptr, i8, i8, i8 } 11 %struct.initial_value_struct = type opaque 12 %struct.lang_decl = type opaque 13 %struct.lang_type = type opaque 14 %struct.language_function = type opaque 15 %struct.location_t = type { ptr, i32 } 16 %struct.machine_function = type { i32, i32, ptr, i32, i32 } 17 %struct.rtunion = type { i32 } 18 %struct.rtvec_def = type { i32, [1 x ptr] } 19 %struct.rtx_def = type { i16, i8, i8, %struct.u } 20 %struct.sequence_stack = type { ptr, ptr, ptr } 21 %struct.temp_slot = type opaque 22 %struct.tree_common = type { ptr, ptr, ptr, i8, i8, i8, i8, i8 } 23 %struct.tree_decl = type { %struct.tree_common, %struct.location_t, i32, ptr, i8, i8, i8, i8, i8, i8, i8, i8, i32, %struct.tree_decl_u1, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, %struct.tree_decl_u2, ptr, ptr, i64, ptr } 24 %struct.tree_decl_u1 = type { i64 } 25 %struct.tree_decl_u2 = type { ptr } 26 %struct.tree_node = type { %struct.tree_decl } 27 %struct.tree_type = type { %struct.tree_common, ptr, ptr, ptr, ptr, i32, i16, i8, i8, i32, ptr, ptr, %struct.rtunion, ptr, ptr, ptr, ptr, ptr, ptr, ptr, i64, ptr } 28 %struct.u = type { [1 x i64] } 29 %struct.var_refs_queue = type { ptr, i32, i32, ptr } 30 %struct.varasm_status = type opaque 31 %struct.varray_head_tag = type { i32, i32, i32, ptr, %struct.u } 32 %union.tree_ann_d = type opaque 33@mode_class = external global [35 x i8] ; <ptr> [#uses=3] 34 35define void @fold_builtin_classify() { 36entry: 37 %tmp63 = load i32, ptr null ; <i32> [#uses=1] 38 switch i32 %tmp63, label %bb276 [ 39 i32 414, label %bb145 40 i32 417, label %bb 41 ] 42bb: ; preds = %entry 43 ret void 44bb145: ; preds = %entry 45 %tmp146 = load ptr, ptr null ; <ptr> [#uses=1] 46 %tmp148 = getelementptr %struct.tree_node, ptr %tmp146, i32 0, i32 0, i32 0, i32 1 ; <ptr> [#uses=1] 47 %tmp149 = load ptr, ptr %tmp148 ; <ptr> [#uses=1] 48 %tmp151 = getelementptr %struct.tree_type, ptr %tmp149, i32 0, i32 6 ; <ptr> [#uses=1] 49 %tmp152 = load i32, ptr %tmp151 ; <i32> [#uses=1] 50 %tmp154 = lshr i32 %tmp152, 16 ; <i32> [#uses=1] 51 %tmp154.mask = and i32 %tmp154, 127 ; <i32> [#uses=1] 52 %gep.upgrd.2 = zext i32 %tmp154.mask to i64 ; <i64> [#uses=1] 53 %tmp155 = getelementptr [35 x i8], ptr @mode_class, i32 0, i64 %gep.upgrd.2 ; <ptr> [#uses=1] 54 %tmp156 = load i8, ptr %tmp155 ; <i8> [#uses=1] 55 %tmp157 = icmp eq i8 %tmp156, 4 ; <i1> [#uses=1] 56 br i1 %tmp157, label %cond_next241, label %cond_true158 57cond_true158: ; preds = %bb145 58 %tmp172 = load ptr, ptr null ; <ptr> [#uses=1] 59 %tmp174 = getelementptr %struct.tree_node, ptr %tmp172, i32 0, i32 0, i32 0, i32 1 ; <ptr> [#uses=1] 60 %tmp175 = load ptr, ptr %tmp174 ; <ptr> [#uses=1] 61 %tmp177 = getelementptr %struct.tree_type, ptr %tmp175, i32 0, i32 6 ; <ptr> [#uses=1] 62 %tmp178 = load i32, ptr %tmp177 ; <i32> [#uses=1] 63 %tmp180 = lshr i32 %tmp178, 16 ; <i32> [#uses=1] 64 %tmp180.mask = and i32 %tmp180, 127 ; <i32> [#uses=1] 65 %gep.upgrd.4 = zext i32 %tmp180.mask to i64 ; <i64> [#uses=1] 66 %tmp181 = getelementptr [35 x i8], ptr @mode_class, i32 0, i64 %gep.upgrd.4 ; <ptr> [#uses=1] 67 %tmp182 = load i8, ptr %tmp181 ; <i8> [#uses=1] 68 %tmp183 = icmp eq i8 %tmp182, 8 ; <i1> [#uses=1] 69 br i1 %tmp183, label %cond_next241, label %cond_true184 70cond_true184: ; preds = %cond_true158 71 %tmp185 = load ptr, ptr null ; <ptr> [#uses=1] 72 %tmp187 = getelementptr %struct.tree_node, ptr %tmp185, i32 0, i32 0, i32 0, i32 1 ; <ptr> [#uses=1] 73 %tmp188 = load ptr, ptr %tmp187 ; <ptr> [#uses=1] 74 %tmp190 = getelementptr %struct.tree_type, ptr %tmp188, i32 0, i32 6 ; <ptr> [#uses=1] 75 %tmp191 = load i32, ptr %tmp190 ; <i32> [#uses=1] 76 %tmp193 = lshr i32 %tmp191, 16 ; <i32> [#uses=1] 77 %tmp193.mask = and i32 %tmp193, 127 ; <i32> [#uses=1] 78 %gep.upgrd.6 = zext i32 %tmp193.mask to i64 ; <i64> [#uses=1] 79 %tmp194 = getelementptr [35 x i8], ptr @mode_class, i32 0, i64 %gep.upgrd.6 ; <ptr> [#uses=1] 80 %tmp195 = load i8, ptr %tmp194 ; <i8> [#uses=1] 81 %tmp196 = icmp eq i8 %tmp195, 4 ; <i1> [#uses=1] 82 br i1 %tmp196, label %cond_next241, label %cond_true197 83cond_true197: ; preds = %cond_true184 84 ret void 85cond_next241: ; preds = %cond_true184, %cond_true158, %bb145 86 %tmp245 = load i32, ptr null ; <i32> [#uses=0] 87 ret void 88bb276: ; preds = %entry 89 ret void 90} 91