1 files changed, 26 insertions, 0 deletions
diff --git a/test/Analysis/LoopDependenceAnalysis/ziv2.ll b/test/Analysis/LoopDependenceAnalysis/ziv2.ll
new file mode 100644
index 0000000..cecf3a7
--- /dev/null
+++ b/test/Analysis/LoopDependenceAnalysis/ziv2.ll
@@ -0,0 +1,26 @@
+; 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[c] = x[c+1] // with c being a loop-invariant constant
+
+@x = common global [256 x i32] zeroinitializer, align 4
+
+define void @foo(i64 %c0) nounwind {
+entry:
+  %c1 = add i64 %c0, 1
+  %x.ld.addr = getelementptr [256 x i32]* @x, i64 0, i64 %c0
+  %x.st.addr = getelementptr [256 x i32]* @x, i64 0, i64 %c1
+  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
+}