Array accesses are independent if the underlying arrays differ.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74499 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Analysis/LoopDependenceAnalysis/local-array.ll b/test/Analysis/LoopDependenceAnalysis/local-array.ll
new file mode 100644
index 0000000..c42e0fa
--- /dev/null
+++ b/test/Analysis/LoopDependenceAnalysis/local-array.ll
@@ -0,0 +1,24 @@
+; RUN: llvm-as < %s | opt -disable-output -analyze -lda > %t
+; RUN: grep {instructions: 2} %t | count 1
+; RUN: grep {0,1: dependent} %t | count 1
+
+; x[5] = x[6] // with x being an array on the stack
+
+define void @foo(...) nounwind {
+entry:
+ %xptr = alloca [256 x i32], align 4
+ %x.ld.addr = getelementptr [256 x i32]* %xptr, i64 0, i64 6
+ %x.st.addr = getelementptr [256 x i32]* %xptr, i64 0, i64 5
+ br label %for.body
+
+for.body:
+ %i = phi i64 [ 0, %entry ], [ %i.next, %for.body ]
+ %x = load i32* %x.ld.addr
+ store i32 %x, i32* %x.st.addr
+ %i.next = add i64 %i, 1
+ %exitcond = icmp eq i64 %i.next, 256
+ br i1 %exitcond, label %for.end, label %for.body
+
+for.end:
+ ret void
+}