280 lines
16 KiB
LLVM
280 lines
16 KiB
LLVM
; RUN: opt < %s -instcombine -scalarrepl -S | not grep { = alloca}
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; rdar://6417724
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; Instcombine shouldn't do anything to this function that prevents promoting the allocas inside it.
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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"
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target triple = "i386-apple-darwin9.6"
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%"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >" = type { i32* }
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%"struct.std::_Vector_base<int,std::allocator<int> >" = type { %"struct.std::_Vector_base<int,std::allocator<int> >::_Vector_impl" }
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%"struct.std::_Vector_base<int,std::allocator<int> >::_Vector_impl" = type { i32*, i32*, i32* }
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%"struct.std::bidirectional_iterator_tag" = type <{ i8 }>
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%"struct.std::forward_iterator_tag" = type <{ i8 }>
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%"struct.std::input_iterator_tag" = type <{ i8 }>
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%"struct.std::random_access_iterator_tag" = type <{ i8 }>
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%"struct.std::vector<int,std::allocator<int> >" = type { %"struct.std::_Vector_base<int,std::allocator<int> >" }
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define i32* @_Z3fooRSt6vectorIiSaIiEE(%"struct.std::vector<int,std::allocator<int> >"* %X) {
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entry:
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%0 = alloca %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"
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%__first_addr.i.i = alloca %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"
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%__last_addr.i.i = alloca %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"
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%unnamed_arg.i = alloca %"struct.std::bidirectional_iterator_tag", align 8
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%1 = alloca %"struct.std::bidirectional_iterator_tag"
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%__first_addr.i = alloca %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"
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%2 = alloca %"struct.std::bidirectional_iterator_tag"
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%3 = alloca %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"
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%4 = alloca i32
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%"alloca point" = bitcast i32 0 to i32
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store i32 42, i32* %4, align 4
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%5 = getelementptr %"struct.std::vector<int,std::allocator<int> >"* %X, i32 0, i32 0
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%6 = getelementptr %"struct.std::_Vector_base<int,std::allocator<int> >"* %5, i32 0, i32 0
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%7 = getelementptr %"struct.std::_Vector_base<int,std::allocator<int> >::_Vector_impl"* %6, i32 0, i32 1
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%8 = load i32** %7, align 4
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%9 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %3, i32 0, i32 0
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store i32* %8, i32** %9, align 4
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%10 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %3, i32 0, i32 0
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%11 = load i32** %10, align 4
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%tmp2.i = ptrtoint i32* %11 to i32
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%tmp1.i = inttoptr i32 %tmp2.i to i32*
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%tmp3 = ptrtoint i32* %tmp1.i to i32
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%tmp2 = inttoptr i32 %tmp3 to i32*
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%12 = getelementptr %"struct.std::vector<int,std::allocator<int> >"* %X, i32 0, i32 0
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%13 = getelementptr %"struct.std::_Vector_base<int,std::allocator<int> >"* %12, i32 0, i32 0
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%14 = getelementptr %"struct.std::_Vector_base<int,std::allocator<int> >::_Vector_impl"* %13, i32 0, i32 0
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%15 = load i32** %14, align 4
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%16 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %0, i32 0, i32 0
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store i32* %15, i32** %16, align 4
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%17 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %0, i32 0, i32 0
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%18 = load i32** %17, align 4
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%tmp2.i17 = ptrtoint i32* %18 to i32
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%tmp1.i18 = inttoptr i32 %tmp2.i17 to i32*
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%tmp8 = ptrtoint i32* %tmp1.i18 to i32
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%tmp6 = inttoptr i32 %tmp8 to i32*
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%19 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i, i32 0, i32 0
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store i32* %tmp6, i32** %19
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%20 = getelementptr %"struct.std::bidirectional_iterator_tag"* %1, i32 0, i32 0
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%21 = load i8* %20, align 1
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%22 = or i8 %21, 0
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%23 = or i8 %22, 0
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%24 = or i8 %23, 0
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%25 = getelementptr %"struct.std::bidirectional_iterator_tag"* %2, i32 0, i32 0
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store i8 0, i8* %25, align 1
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%elt.i = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i, i32 0, i32 0
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%val.i = load i32** %elt.i
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%tmp.i = bitcast %"struct.std::bidirectional_iterator_tag"* %unnamed_arg.i to i8*
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%tmp9.i = bitcast %"struct.std::bidirectional_iterator_tag"* %2 to i8*
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %tmp.i, i8* %tmp9.i, i64 1, i32 1, i1 false)
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%26 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0
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store i32* %val.i, i32** %26
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%27 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__last_addr.i.i, i32 0, i32 0
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store i32* %tmp2, i32** %27
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%28 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__last_addr.i.i, i32 0, i32 0
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%29 = load i32** %28, align 4
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%30 = ptrtoint i32* %29 to i32
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%31 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0
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%32 = load i32** %31, align 4
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%33 = ptrtoint i32* %32 to i32
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%34 = sub i32 %30, %33
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%35 = ashr i32 %34, 2
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%36 = ashr i32 %35, 2
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br label %bb12.i.i
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bb.i.i: ; preds = %bb12.i.i
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%37 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0
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%38 = load i32** %37, align 4
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%39 = load i32* %38, align 4
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%40 = load i32* %4, align 4
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%41 = icmp eq i32 %39, %40
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%42 = zext i1 %41 to i8
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%toBool.i.i = icmp ne i8 %42, 0
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br i1 %toBool.i.i, label %bb1.i.i, label %bb2.i.i
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bb1.i.i: ; preds = %bb.i.i
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%43 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0
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%44 = load i32** %43, align 4
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br label %_ZSt4findIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEiET_S7_S7_RKT0_.exit
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bb2.i.i: ; preds = %bb.i.i
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%45 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0
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%46 = load i32** %45, align 4
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%47 = getelementptr i32* %46, i64 1
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%48 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0
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store i32* %47, i32** %48, align 4
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%49 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0
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%50 = load i32** %49, align 4
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%51 = load i32* %50, align 4
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%52 = load i32* %4, align 4
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%53 = icmp eq i32 %51, %52
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%54 = zext i1 %53 to i8
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%toBool3.i.i = icmp ne i8 %54, 0
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br i1 %toBool3.i.i, label %bb4.i.i, label %bb5.i.i
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bb4.i.i: ; preds = %bb2.i.i
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%55 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0
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%56 = load i32** %55, align 4
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br label %_ZSt4findIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEiET_S7_S7_RKT0_.exit
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bb5.i.i: ; preds = %bb2.i.i
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%57 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0
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%58 = load i32** %57, align 4
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%59 = getelementptr i32* %58, i64 1
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%60 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0
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store i32* %59, i32** %60, align 4
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%61 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0
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%62 = load i32** %61, align 4
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%63 = load i32* %62, align 4
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%64 = load i32* %4, align 4
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%65 = icmp eq i32 %63, %64
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%66 = zext i1 %65 to i8
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%toBool6.i.i = icmp ne i8 %66, 0
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br i1 %toBool6.i.i, label %bb7.i.i, label %bb8.i.i
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bb7.i.i: ; preds = %bb5.i.i
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%67 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0
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%68 = load i32** %67, align 4
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br label %_ZSt4findIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEiET_S7_S7_RKT0_.exit
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bb8.i.i: ; preds = %bb5.i.i
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%69 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0
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%70 = load i32** %69, align 4
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%71 = getelementptr i32* %70, i64 1
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%72 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0
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store i32* %71, i32** %72, align 4
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%73 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0
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%74 = load i32** %73, align 4
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%75 = load i32* %74, align 4
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%76 = load i32* %4, align 4
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%77 = icmp eq i32 %75, %76
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%78 = zext i1 %77 to i8
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%toBool9.i.i = icmp ne i8 %78, 0
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br i1 %toBool9.i.i, label %bb10.i.i, label %bb11.i.i
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bb10.i.i: ; preds = %bb8.i.i
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%79 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0
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%80 = load i32** %79, align 4
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br label %_ZSt4findIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEiET_S7_S7_RKT0_.exit
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bb11.i.i: ; preds = %bb8.i.i
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%81 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0
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%82 = load i32** %81, align 4
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%83 = getelementptr i32* %82, i64 1
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%84 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0
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store i32* %83, i32** %84, align 4
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%85 = sub i32 %__trip_count.0.i.i, 1
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br label %bb12.i.i
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bb12.i.i: ; preds = %bb11.i.i, %entry
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%__trip_count.0.i.i = phi i32 [ %36, %entry ], [ %85, %bb11.i.i ]
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%86 = icmp sgt i32 %__trip_count.0.i.i, 0
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br i1 %86, label %bb.i.i, label %bb13.i.i
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bb13.i.i: ; preds = %bb12.i.i
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%87 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__last_addr.i.i, i32 0, i32 0
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%88 = load i32** %87, align 4
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%89 = ptrtoint i32* %88 to i32
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%90 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0
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%91 = load i32** %90, align 4
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%92 = ptrtoint i32* %91 to i32
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%93 = sub i32 %89, %92
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%94 = ashr i32 %93, 2
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switch i32 %94, label %bb26.i.i [
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i32 1, label %bb22.i.i
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i32 2, label %bb18.i.i
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i32 3, label %bb14.i.i
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]
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bb14.i.i: ; preds = %bb13.i.i
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%95 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0
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%96 = load i32** %95, align 4
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%97 = load i32* %96, align 4
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%98 = load i32* %4, align 4
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%99 = icmp eq i32 %97, %98
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%100 = zext i1 %99 to i8
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%toBool15.i.i = icmp ne i8 %100, 0
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br i1 %toBool15.i.i, label %bb16.i.i, label %bb17.i.i
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bb16.i.i: ; preds = %bb14.i.i
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%101 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0
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%102 = load i32** %101, align 4
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br label %_ZSt4findIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEiET_S7_S7_RKT0_.exit
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bb17.i.i: ; preds = %bb14.i.i
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%103 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0
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%104 = load i32** %103, align 4
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%105 = getelementptr i32* %104, i64 1
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%106 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0
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store i32* %105, i32** %106, align 4
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br label %bb18.i.i
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bb18.i.i: ; preds = %bb17.i.i, %bb13.i.i
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%107 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0
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%108 = load i32** %107, align 4
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%109 = load i32* %108, align 4
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%110 = load i32* %4, align 4
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%111 = icmp eq i32 %109, %110
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%112 = zext i1 %111 to i8
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%toBool19.i.i = icmp ne i8 %112, 0
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br i1 %toBool19.i.i, label %bb20.i.i, label %bb21.i.i
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bb20.i.i: ; preds = %bb18.i.i
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%113 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0
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%114 = load i32** %113, align 4
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br label %_ZSt4findIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEiET_S7_S7_RKT0_.exit
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bb21.i.i: ; preds = %bb18.i.i
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%115 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0
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%116 = load i32** %115, align 4
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%117 = getelementptr i32* %116, i64 1
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%118 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0
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store i32* %117, i32** %118, align 4
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br label %bb22.i.i
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bb22.i.i: ; preds = %bb21.i.i, %bb13.i.i
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%119 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0
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%120 = load i32** %119, align 4
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%121 = load i32* %120, align 4
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%122 = load i32* %4, align 4
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%123 = icmp eq i32 %121, %122
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%124 = zext i1 %123 to i8
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%toBool23.i.i = icmp ne i8 %124, 0
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br i1 %toBool23.i.i, label %bb24.i.i, label %bb25.i.i
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bb24.i.i: ; preds = %bb22.i.i
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%125 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0
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%126 = load i32** %125, align 4
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br label %_ZSt4findIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEiET_S7_S7_RKT0_.exit
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bb25.i.i: ; preds = %bb22.i.i
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%127 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0
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%128 = load i32** %127, align 4
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%129 = getelementptr i32* %128, i64 1
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%130 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__first_addr.i.i, i32 0, i32 0
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store i32* %129, i32** %130, align 4
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br label %bb26.i.i
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bb26.i.i: ; preds = %bb25.i.i, %bb13.i.i
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%131 = getelementptr %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >"* %__last_addr.i.i, i32 0, i32 0
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%132 = load i32** %131, align 4
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br label %_ZSt4findIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEiET_S7_S7_RKT0_.exit
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_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
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%.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 ]
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%tmp2.i.i = ptrtoint i32* %.0.0.i.i to i32
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%tmp1.i.i = inttoptr i32 %tmp2.i.i to i32*
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%tmp4.i = ptrtoint i32* %tmp1.i.i to i32
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%tmp3.i = inttoptr i32 %tmp4.i to i32*
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%tmp8.i = ptrtoint i32* %tmp3.i to i32
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%tmp6.i = inttoptr i32 %tmp8.i to i32*
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%tmp12 = ptrtoint i32* %tmp6.i to i32
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%tmp10 = inttoptr i32 %tmp12 to i32*
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%tmp16 = ptrtoint i32* %tmp10 to i32
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br label %return
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return: ; preds = %_ZSt4findIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEiET_S7_S7_RKT0_.exit
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%tmp14 = inttoptr i32 %tmp16 to i32*
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ret i32* %tmp14
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}
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declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i32, i1) nounwind
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