1 ; RUN: opt < %s -instcombine -scalarrepl -S | not grep " = alloca" 2 ; rdar://6417724 3 ; Instcombine shouldn't do anything to this function that prevents promoting the allocas inside it. 4 5 target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128" 6 target triple = "i386-apple-darwin9.6" 7 8 %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >" = type { i32* } 9 %"struct.std::_Vector_base<int,std::allocator<int> >" = type { %"struct.std::_Vector_base<int,std::allocator<int> >::_Vector_impl" } 10 %"struct.std::_Vector_base<int,std::allocator<int> >::_Vector_impl" = type { i32*, i32*, i32* } 11 %"struct.std::bidirectional_iterator_tag" = type <{ i8 }> 12 %"struct.std::forward_iterator_tag" = type <{ i8 }> 13 %"struct.std::input_iterator_tag" = type <{ i8 }> 14 %"struct.std::random_access_iterator_tag" = type <{ i8 }> 15 %"struct.std::vector<int,std::allocator<int> >" = type { %"struct.std::_Vector_base<int,std::allocator<int> >" } 16 17 define i32* @_Z3fooRSt6vectorIiSaIiEE(%"struct.std::vector<int,std::allocator<int> >"* %X) { 18 entry: 19 %0 = alloca %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >" 20 %__first_addr.i.i = alloca %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >" 21 %__last_addr.i.i = alloca %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >" 22 %unnamed_arg.i = alloca %"struct.std::bidirectional_iterator_tag", align 8 23 %1 = alloca %"struct.std::bidirectional_iterator_tag" 24 %__first_addr.i = alloca %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >" 25 %2 = alloca %"struct.std::bidirectional_iterator_tag" 26 %3 = alloca %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >" 27 %4 = alloca i32 28 %"alloca point" = bitcast i32 0 to i32 29 store i32 42, i32* %4, align 4 30 %5 = getelementptr %"struct.std::vector<int,std::allocator<int> >"* %X, i32 0, i32 0 31 %6 = getelementptr %"struct.std::_Vector_base<int,std::allocator<int> >"* %5, i32 0, i32 0 32 %7 = getelementptr %"struct.std::_Vector_base<int,std::allocator<int> >::_Vector_impl"* %6, i32 0, i32 1 33 %8 = load i32** %7, align 4 34 %9 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %3, i32 0, i32 0 35 store i32* %8, i32** %9, align 4 36 %10 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %3, i32 0, i32 0 37 %11 = load i32** %10, align 4 38 %tmp2.i = ptrtoint i32* %11 to i32 39 %tmp1.i = inttoptr i32 %tmp2.i to i32* 40 %tmp3 = ptrtoint i32* %tmp1.i to i32 41 %tmp2 = inttoptr i32 %tmp3 to i32* 42 %12 = getelementptr %"struct.std::vector<int,std::allocator<int> >"* %X, i32 0, i32 0 43 %13 = getelementptr %"struct.std::_Vector_base<int,std::allocator<int> >"* %12, i32 0, i32 0 44 %14 = getelementptr %"struct.std::_Vector_base<int,std::allocator<int> >::_Vector_impl"* %13, i32 0, i32 0 45 %15 = load i32** %14, align 4 46 %16 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %0, i32 0, i32 0 47 store i32* %15, i32** %16, align 4 48 %17 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %0, i32 0, i32 0 49 %18 = load i32** %17, align 4 50 %tmp2.i17 = ptrtoint i32* %18 to i32 51 %tmp1.i18 = inttoptr i32 %tmp2.i17 to i32* 52 %tmp8 = ptrtoint i32* %tmp1.i18 to i32 53 %tmp6 = inttoptr i32 %tmp8 to i32* 54 %19 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i, i32 0, i32 0 55 store i32* %tmp6, i32** %19 56 %20 = getelementptr %"struct.std::bidirectional_iterator_tag"* %1, i32 0, i32 0 57 %21 = load i8* %20, align 1 58 %22 = or i8 %21, 0 59 %23 = or i8 %22, 0 60 %24 = or i8 %23, 0 61 %25 = getelementptr %"struct.std::bidirectional_iterator_tag"* %2, i32 0, i32 0 62 store i8 0, i8* %25, align 1 63 %elt.i = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i, i32 0, i32 0 64 %val.i = load i32** %elt.i 65 %tmp.i = bitcast %"struct.std::bidirectional_iterator_tag"* %unnamed_arg.i to i8* 66 %tmp9.i = bitcast %"struct.std::bidirectional_iterator_tag"* %2 to i8* 67 call void @llvm.memcpy.p0i8.p0i8.i64(i8* %tmp.i, i8* %tmp9.i, i64 1, i32 1, i1 false) 68 %26 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0 69 store i32* %val.i, i32** %26 70 %27 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__last_addr.i.i, i32 0, i32 0 71 store i32* %tmp2, i32** %27 72 %28 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__last_addr.i.i, i32 0, i32 0 73 %29 = load i32** %28, align 4 74 %30 = ptrtoint i32* %29 to i32 75 %31 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0 76 %32 = load i32** %31, align 4 77 %33 = ptrtoint i32* %32 to i32 78 %34 = sub i32 %30, %33 79 %35 = ashr i32 %34, 2 80 %36 = ashr i32 %35, 2 81 br label %bb12.i.i 82 83 bb.i.i: ; preds = %bb12.i.i 84 %37 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0 85 %38 = load i32** %37, align 4 86 %39 = load i32* %38, align 4 87 %40 = load i32* %4, align 4 88 %41 = icmp eq i32 %39, %40 89 %42 = zext i1 %41 to i8 90 %toBool.i.i = icmp ne i8 %42, 0 91 br i1 %toBool.i.i, label %bb1.i.i, label %bb2.i.i 92 93 bb1.i.i: ; preds = %bb.i.i 94 %43 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0 95 %44 = load i32** %43, align 4 96 br label %_ZSt4findIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEiET_S7_S7_RKT0_.exit 97 98 bb2.i.i: ; preds = %bb.i.i 99 %45 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0 100 %46 = load i32** %45, align 4 101 %47 = getelementptr i32* %46, i64 1 102 %48 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0 103 store i32* %47, i32** %48, align 4 104 %49 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0 105 %50 = load i32** %49, align 4 106 %51 = load i32* %50, align 4 107 %52 = load i32* %4, align 4 108 %53 = icmp eq i32 %51, %52 109 %54 = zext i1 %53 to i8 110 %toBool3.i.i = icmp ne i8 %54, 0 111 br i1 %toBool3.i.i, label %bb4.i.i, label %bb5.i.i 112 113 bb4.i.i: ; preds = %bb2.i.i 114 %55 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0 115 %56 = load i32** %55, align 4 116 br label %_ZSt4findIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEiET_S7_S7_RKT0_.exit 117 118 bb5.i.i: ; preds = %bb2.i.i 119 %57 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0 120 %58 = load i32** %57, align 4 121 %59 = getelementptr i32* %58, i64 1 122 %60 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0 123 store i32* %59, i32** %60, align 4 124 %61 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0 125 %62 = load i32** %61, align 4 126 %63 = load i32* %62, align 4 127 %64 = load i32* %4, align 4 128 %65 = icmp eq i32 %63, %64 129 %66 = zext i1 %65 to i8 130 %toBool6.i.i = icmp ne i8 %66, 0 131 br i1 %toBool6.i.i, label %bb7.i.i, label %bb8.i.i 132 133 bb7.i.i: ; preds = %bb5.i.i 134 %67 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0 135 %68 = load i32** %67, align 4 136 br label %_ZSt4findIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEiET_S7_S7_RKT0_.exit 137 138 bb8.i.i: ; preds = %bb5.i.i 139 %69 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0 140 %70 = load i32** %69, align 4 141 %71 = getelementptr i32* %70, i64 1 142 %72 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0 143 store i32* %71, i32** %72, align 4 144 %73 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0 145 %74 = load i32** %73, align 4 146 %75 = load i32* %74, align 4 147 %76 = load i32* %4, align 4 148 %77 = icmp eq i32 %75, %76 149 %78 = zext i1 %77 to i8 150 %toBool9.i.i = icmp ne i8 %78, 0 151 br i1 %toBool9.i.i, label %bb10.i.i, label %bb11.i.i 152 153 bb10.i.i: ; preds = %bb8.i.i 154 %79 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0 155 %80 = load i32** %79, align 4 156 br label %_ZSt4findIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEiET_S7_S7_RKT0_.exit 157 158 bb11.i.i: ; preds = %bb8.i.i 159 %81 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0 160 %82 = load i32** %81, align 4 161 %83 = getelementptr i32* %82, i64 1 162 %84 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0 163 store i32* %83, i32** %84, align 4 164 %85 = sub i32 %__trip_count.0.i.i, 1 165 br label %bb12.i.i 166 167 bb12.i.i: ; preds = %bb11.i.i, %entry 168 %__trip_count.0.i.i = phi i32 [ %36, %entry ], [ %85, %bb11.i.i ] 169 %86 = icmp sgt i32 %__trip_count.0.i.i, 0 170 br i1 %86, label %bb.i.i, label %bb13.i.i 171 172 bb13.i.i: ; preds = %bb12.i.i 173 %87 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__last_addr.i.i, i32 0, i32 0 174 %88 = load i32** %87, align 4 175 %89 = ptrtoint i32* %88 to i32 176 %90 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0 177 %91 = load i32** %90, align 4 178 %92 = ptrtoint i32* %91 to i32 179 %93 = sub i32 %89, %92 180 %94 = ashr i32 %93, 2 181 switch i32 %94, label %bb26.i.i [ 182 i32 1, label %bb22.i.i 183 i32 2, label %bb18.i.i 184 i32 3, label %bb14.i.i 185 ] 186 187 bb14.i.i: ; preds = %bb13.i.i 188 %95 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0 189 %96 = load i32** %95, align 4 190 %97 = load i32* %96, align 4 191 %98 = load i32* %4, align 4 192 %99 = icmp eq i32 %97, %98 193 %100 = zext i1 %99 to i8 194 %toBool15.i.i = icmp ne i8 %100, 0 195 br i1 %toBool15.i.i, label %bb16.i.i, label %bb17.i.i 196 197 bb16.i.i: ; preds = %bb14.i.i 198 %101 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0 199 %102 = load i32** %101, align 4 200 br label %_ZSt4findIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEiET_S7_S7_RKT0_.exit 201 202 bb17.i.i: ; preds = %bb14.i.i 203 %103 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0 204 %104 = load i32** %103, align 4 205 %105 = getelementptr i32* %104, i64 1 206 %106 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0 207 store i32* %105, i32** %106, align 4 208 br label %bb18.i.i 209 210 bb18.i.i: ; preds = %bb17.i.i, %bb13.i.i 211 %107 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0 212 %108 = load i32** %107, align 4 213 %109 = load i32* %108, align 4 214 %110 = load i32* %4, align 4 215 %111 = icmp eq i32 %109, %110 216 %112 = zext i1 %111 to i8 217 %toBool19.i.i = icmp ne i8 %112, 0 218 br i1 %toBool19.i.i, label %bb20.i.i, label %bb21.i.i 219 220 bb20.i.i: ; preds = %bb18.i.i 221 %113 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0 222 %114 = load i32** %113, align 4 223 br label %_ZSt4findIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEiET_S7_S7_RKT0_.exit 224 225 bb21.i.i: ; preds = %bb18.i.i 226 %115 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0 227 %116 = load i32** %115, align 4 228 %117 = getelementptr i32* %116, i64 1 229 %118 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0 230 store i32* %117, i32** %118, align 4 231 br label %bb22.i.i 232 233 bb22.i.i: ; preds = %bb21.i.i, %bb13.i.i 234 %119 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0 235 %120 = load i32** %119, align 4 236 %121 = load i32* %120, align 4 237 %122 = load i32* %4, align 4 238 %123 = icmp eq i32 %121, %122 239 %124 = zext i1 %123 to i8 240 %toBool23.i.i = icmp ne i8 %124, 0 241 br i1 %toBool23.i.i, label %bb24.i.i, label %bb25.i.i 242 243 bb24.i.i: ; preds = %bb22.i.i 244 %125 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0 245 %126 = load i32** %125, align 4 246 br label %_ZSt4findIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEiET_S7_S7_RKT0_.exit 247 248 bb25.i.i: ; preds = %bb22.i.i 249 %127 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0 250 %128 = load i32** %127, align 4 251 %129 = getelementptr i32* %128, i64 1 252 %130 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0 253 store i32* %129, i32** %130, align 4 254 br label %bb26.i.i 255 256 bb26.i.i: ; preds = %bb25.i.i, %bb13.i.i 257 %131 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__last_addr.i.i, i32 0, i32 0 258 %132 = load i32** %131, align 4 259 br label %_ZSt4findIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEiET_S7_S7_RKT0_.exit 260 261 _ZSt4findIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEiET_S7_S7_RKT0_.exit: ; preds = %bb26.i.i, %bb24.i.i, %bb20.i.i, %bb16.i.i, %bb10.i.i, %bb7.i.i, %bb4.i.i, %bb1.i.i 262 %.0.0.i.i = phi i32* [ %132, %bb26.i.i ], [ %126, %bb24.i.i ], [ %114, %bb20.i.i ], [ %102, %bb16.i.i ], [ %80, %bb10.i.i ], [ %68, %bb7.i.i ], [ %56, %bb4.i.i ], [ %44, %bb1.i.i ] 263 %tmp2.i.i = ptrtoint i32* %.0.0.i.i to i32 264 %tmp1.i.i = inttoptr i32 %tmp2.i.i to i32* 265 %tmp4.i = ptrtoint i32* %tmp1.i.i to i32 266 %tmp3.i = inttoptr i32 %tmp4.i to i32* 267 %tmp8.i = ptrtoint i32* %tmp3.i to i32 268 %tmp6.i = inttoptr i32 %tmp8.i to i32* 269 %tmp12 = ptrtoint i32* %tmp6.i to i32 270 %tmp10 = inttoptr i32 %tmp12 to i32* 271 %tmp16 = ptrtoint i32* %tmp10 to i32 272 br label %return 273 274 return: ; preds = %_ZSt4findIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEiET_S7_S7_RKT0_.exit 275 %tmp14 = inttoptr i32 %tmp16 to i32* 276 ret i32* %tmp14 277 } 278 279 declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i32, i1) nounwind 280
