It's not necessary to do rounding for alloca operations when the requested
alignment is equal to the stack alignment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40004 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Analysis/BasicAA/2006-03-03-BadArraySubscript.ll b/test/Analysis/BasicAA/2006-03-03-BadArraySubscript.ll
new file mode 100644
index 0000000..f29e9a0
--- /dev/null
+++ b/test/Analysis/BasicAA/2006-03-03-BadArraySubscript.ll
@@ -0,0 +1,32 @@
+; RUN: llvm-upgrade < %s | llvm-as | \
+; RUN: opt -aa-eval -disable-output |& grep {2 no alias respon}
+
+;; TEST that A[1][0] may alias A[0][i].
+
+void %test(int %N) {
+entry:
+ %X = alloca [3 x [3 x int]] ; <[3 x [3 x int]]*> [#uses=4]
+ %tmp.24 = setgt int %N, 0 ; <bool> [#uses=1]
+ br bool %tmp.24, label %no_exit, label %loopexit
+
+no_exit: ; preds = %no_exit, %entry
+ %i.0.0 = phi int [ 0, %entry ], [ %inc, %no_exit ] ; <int> [#uses=2]
+ %tmp.6 = getelementptr [3 x [3 x int]]* %X, int 0, int 0, int %i.0.0 ; <int*> [#uses=1]
+ store int 1, int* %tmp.6
+ %tmp.8 = getelementptr [3 x [3 x int]]* %X, int 0, int 0, int 0 ; <int*> [#uses=1]
+ %tmp.9 = load int* %tmp.8 ; <int> [#uses=1]
+ %tmp.11 = getelementptr [3 x [3 x int]]* %X, int 0, int 1, int 0 ; <int*> [#uses=1]
+ %tmp.12 = load int* %tmp.11 ; <int> [#uses=1]
+ %tmp.13 = add int %tmp.12, %tmp.9 ; <int> [#uses=1]
+ %inc = add int %i.0.0, 1 ; <int> [#uses=2]
+ %tmp.2 = setlt int %inc, %N ; <bool> [#uses=1]
+ br bool %tmp.2, label %no_exit, label %loopexit
+
+loopexit: ; preds = %no_exit, %entry
+ %Y.0.1 = phi int [ 0, %entry ], [ %tmp.13, %no_exit ] ; <int> [#uses=1]
+ %tmp.4 = getelementptr [3 x [3 x int]]* %X, int 0, int 0 ; <[3 x int]*> [#uses=1]
+ %tmp.15 = call int (...)* %foo( [3 x int]* %tmp.4, int %Y.0.1 ) ; <int> [#uses=0]
+ ret void
+}
+
+declare int %foo(...)