New testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2218 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Transforms/LevelRaise/2002-04-09-MissedRaise.ll b/test/Transforms/LevelRaise/2002-04-09-MissedRaise.ll
new file mode 100644 (file)
index 0000000..b7a9e32
--- /dev/null
+++ b/test/Transforms/LevelRaise/2002-04-09-MissedRaise.ll
@@ -0,0 +1,49 @@
+; This example was not getting level raised because of a negative index from
+; this instruction:
+;   %reg111 = add int %reg110, -12
+; this testcase is distilled from this C source:
+; void foo(int j, int *x) {
+;   unsigned i;
+;   for (i = 12; i < 14; ++i) 
+;     x[j*i-12] = j;
+; }
+
+; RUN: if as < %s | opt -raise | dis | grep ' cast ' | grep '*'
+; RUN: then exit 1
+; RUN: else exit 0
+; RUN: fi
+
+implementation
+
+void "foo"(int %j, int * %x)
+begin
+bb0:                                   ;[#uses=0]
+       br label %bb1
+
+bb1:                                   ;[#uses=2]
+       %reg108 = cast int * %x to sbyte *              ; <sbyte *> [#uses=1]
+       %cond219 = setgt ulong 12, 13           ; <bool> [#uses=1]
+       br bool %cond219, label %bb3, label %bb2
+
+bb2:                                   ;[#uses=3]
+       %cann-indvar = phi uint [ 0, %bb1 ], [ %add1-indvar, %bb2 ]             ; <uint> [#uses=2]
+       %reg117 = add uint %cann-indvar, 12             ; <uint> [#uses=2]
+       %add1-indvar = add uint %cann-indvar, 1         ; <uint> [#uses=1]
+       %cast224 = cast uint %reg117 to uint            ; <uint> [#uses=1]
+       %cast225 = cast uint %reg117 to int             ; <int> [#uses=1]
+       %reg110 = mul int %j, %cast225          ; <int> [#uses=1]
+       %reg111 = add int %reg110, -12          ; <int> [#uses=1]
+       %cast222 = cast int %reg111 to uint             ; <uint> [#uses=1]
+       %reg113 = shl uint %cast222, ubyte 2            ; <uint> [#uses=1]
+       %cast114 = cast uint %reg113 to ulong           ; <ulong> [#uses=1]
+       %cast115 = cast ulong %cast114 to sbyte *               ; <sbyte *> [#uses=1]
+       %reg116 = add sbyte * %reg108, %cast115         ; <sbyte *> [#uses=1]
+       %cast223 = cast sbyte * %reg116 to int *                ; <int *> [#uses=1]
+       store int %j, int * %cast223
+       %reg118 = add uint %cast224, 1          ; <uint> [#uses=1]
+       %cond220 = setle uint %reg118, 13               ; <bool> [#uses=1]
+       br bool %cond220, label %bb2, label %bb3
+
+bb3:                                   ;[#uses=2]
+       ret void
+end