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New testcase for bug in -raise pass

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llvm-svn: 1733
This commit is contained in:
Chris Lattner 2002-02-11 23:44:06 +00:00
parent ca445ecc13
commit 4b69721730
1 changed files with 76 additions and 0 deletions
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test/Regression/Transforms/LevelRaise/2002-02-11-ArrayShape.ll Normal file
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; The "bug" is in the level raising code, not correctly
; raising an array reference. As generated, the code will work, but does
; not correctly match the array type. In short, the code generated
; corresponds to this:
;
; int Array[100][200];
; ...
; Sum += Array[0][i*200+j];
;
; which is out of range, because, although it is correctly accessing the
; array, it does not match types correctly. LLI would pass it through fine,
; if only the code looked like this:
;
; Sum += Array[i][j];
;
; which is functionally identical, but matches the array bound correctly.
; The fix is to have the -raise pass correctly convert it to the second
; equivelent form.
;
; RUN: as < %s | opt -q -raise > Output/%s.raised.bc
; RUN: lli -array-checks -abort-on-exception < Output/%s.raised.bc
;
implementation
int "main"()
begin
bb0: ;[#uses=0]
%Array = alloca [100 x [200 x int]] ; <[100 x [200 x int]] *> [#uses=1]
%cast1032 = cast [100 x [200 x int]] * %Array to [200 x int] * ; <[200 x int] *> [#uses=1]
br label %bb1
bb1: ;[#uses=4]
%cond1033 = setgt long 0, 99 ; <bool> [#uses=1]
br bool %cond1033, label %bb5, label %bb2
bb2: ;[#uses=5]
%reg124 = phi double [ %reg130, %bb4 ], [ 0.000000e+00, %bb1 ] ; <double> [#uses=2]
%reg125 = phi int [ %reg131, %bb4 ], [ 0, %bb1 ] ; <int> [#uses=2]
%cast1043 = cast int %reg125 to int ; <int> [#uses=1]
%cast1038 = cast int %reg125 to uint ; <uint> [#uses=1]
%cond1034 = setgt long 0, 199 ; <bool> [#uses=1]
br bool %cond1034, label %bb4, label %bb3
bb3: ;[#uses=5]
%reg126 = phi double [ %reg128, %bb3 ], [ %reg124, %bb2 ] ; <double> [#uses=1]
%reg127 = phi int [ %reg129, %bb3 ], [ 0, %bb2 ] ; <int> [#uses=2]
%cast1042 = cast int %reg127 to int ; <int> [#uses=1]
%cast1039 = cast int %reg127 to uint ; <uint> [#uses=1]
%reg110 = mul uint %cast1038, 200 ; <uint> [#uses=1]
%reg111 = add uint %reg110, %cast1039 ; <uint> [#uses=1]
%reg113 = shl uint %reg111, ubyte 2 ; <uint> [#uses=1]
%cast115 = cast uint %reg113 to ulong ; <ulong> [#uses=1]
%cast114 = cast ulong %cast115 to sbyte * ; <sbyte *> [#uses=1]
%cast1040 = cast [200 x int] * %cast1032 to sbyte * ; <sbyte *> [#uses=1]
%reg118 = add sbyte * %cast1040, %cast114 ; <sbyte *> [#uses=1]
%cast1041 = cast sbyte * %reg118 to int * ; <int *> [#uses=1]
%reg120 = load int * %cast1041 ; <int> [#uses=1]
%cast119 = cast int %reg120 to double ; <double> [#uses=1]
%reg128 = add double %reg126, %cast119 ; <double> [#uses=2]
%reg129 = add int %cast1042, 1 ; <int> [#uses=2]
%cond1035 = setle int %reg129, 199 ; <bool> [#uses=1]
br bool %cond1035, label %bb3, label %bb4
bb4: ;[#uses=5]
%reg130 = phi double [ %reg128, %bb3 ], [ %reg124, %bb2 ] ; <double> [#uses=2]
%reg131 = add int %cast1043, 1 ; <int> [#uses=2]
%cond1036 = setle int %reg131, 99 ; <bool> [#uses=1]
br bool %cond1036, label %bb2, label %bb5
bb5: ;[#uses=2]
%reg132 = phi double [ %reg130, %bb4 ], [ 0.000000e+00, %bb1 ] ; <double> [#uses=1]
%RET = cast double %reg132 to int
ret int %RET
end