New testcase for bug in -raise pass
llvm-svn: 1733
diff --git a/llvm/test/Regression/Transforms/LevelRaise/2002-02-11-ArrayShape.ll b/llvm/test/Regression/Transforms/LevelRaise/2002-02-11-ArrayShape.ll
new file mode 100644
index 0000000..d135917
--- /dev/null
+++ b/llvm/test/Regression/Transforms/LevelRaise/2002-02-11-ArrayShape.ll
@@ -0,0 +1,76 @@
+; 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
+