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77 lines
2.9 KiB
LLVM
77 lines
2.9 KiB
LLVM
; The "bug" is in the level raising code, not correctly
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; raising an array reference. As generated, the code will work, but does
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; not correctly match the array type. In short, the code generated
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; corresponds to this:
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;
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; int Array[100][200];
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; ...
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; Sum += Array[0][i*200+j];
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;
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; which is out of range, because, although it is correctly accessing the
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; array, it does not match types correctly. LLI would pass it through fine,
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; if only the code looked like this:
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;
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; Sum += Array[i][j];
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;
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; which is functionally identical, but matches the array bound correctly.
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; The fix is to have the -raise pass correctly convert it to the second
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; equivelent form.
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;
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; XFAIL: *
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; RUN: llvm-as < %s | opt -q -raise > Output/%s.raised.bc
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; RUN: lli -force-interpreter -array-checks < Output/%s.raised.bc
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;
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implementation
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int "main"()
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begin
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bb0: ;[#uses=0]
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%Array = alloca [100 x [200 x int]] ; <[100 x [200 x int]] *> [#uses=1]
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%cast1032 = cast [100 x [200 x int]] * %Array to [200 x int] * ; <[200 x int] *> [#uses=1]
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br label %bb1
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bb1: ;[#uses=4]
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%cond1033 = setgt long 0, 99 ; <bool> [#uses=1]
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br bool %cond1033, label %bb5, label %bb2
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bb2: ;[#uses=5]
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%reg124 = phi double [ %reg130, %bb4 ], [ 0.000000e+00, %bb1 ] ; <double> [#uses=2]
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%reg125 = phi int [ %reg131, %bb4 ], [ 0, %bb1 ] ; <int> [#uses=2]
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%cast1043 = cast int %reg125 to int ; <int> [#uses=1]
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%cast1038 = cast int %reg125 to uint ; <uint> [#uses=1]
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%cond1034 = setgt long 0, 199 ; <bool> [#uses=1]
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br bool %cond1034, label %bb4, label %bb3
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bb3: ;[#uses=5]
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%reg126 = phi double [ %reg128, %bb3 ], [ %reg124, %bb2 ] ; <double> [#uses=1]
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%reg127 = phi int [ %reg129, %bb3 ], [ 0, %bb2 ] ; <int> [#uses=2]
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%cast1042 = cast int %reg127 to int ; <int> [#uses=1]
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%cast1039 = cast int %reg127 to uint ; <uint> [#uses=1]
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%reg110 = mul uint %cast1038, 200 ; <uint> [#uses=1]
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%reg111 = add uint %reg110, %cast1039 ; <uint> [#uses=1]
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%reg113 = shl uint %reg111, ubyte 2 ; <uint> [#uses=1]
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%cast115 = cast uint %reg113 to ulong ; <ulong> [#uses=1]
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%cast1040 = cast [200 x int] * %cast1032 to ulong ; <sbyte *> [#uses=1]
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%reg118 = add ulong %cast1040, %cast115 ; <sbyte *> [#uses=1]
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%cast1041 = cast ulong %reg118 to int * ; <int *> [#uses=1]
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%reg120 = load int * %cast1041 ; <int> [#uses=1]
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%cast119 = cast int %reg120 to double ; <double> [#uses=1]
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%reg128 = add double %reg126, %cast119 ; <double> [#uses=2]
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%reg129 = add int %cast1042, 1 ; <int> [#uses=2]
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%cond1035 = setle int %reg129, 199 ; <bool> [#uses=1]
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br bool %cond1035, label %bb3, label %bb4
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bb4: ;[#uses=5]
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%reg130 = phi double [ %reg128, %bb3 ], [ %reg124, %bb2 ] ; <double> [#uses=2]
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%reg131 = add int %cast1043, 1 ; <int> [#uses=2]
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%cond1036 = setle int %reg131, 99 ; <bool> [#uses=1]
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br bool %cond1036, label %bb2, label %bb5
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bb5: ;[#uses=2]
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%reg132 = phi double [ %reg130, %bb4 ], [ 0.000000e+00, %bb1 ] ; <double> [#uses=1]
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%RET = cast double %reg132 to int
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ret int %RET
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end
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