1 files changed, 44 insertions, 0 deletions
diff --git a/test/Analysis/LoopDependenceAnalysis/alias.ll b/test/Analysis/LoopDependenceAnalysis/alias.ll
new file mode 100644
index 0000000..97be3fd
--- /dev/null
+++ b/test/Analysis/LoopDependenceAnalysis/alias.ll
@@ -0,0 +1,44 @@
+; RUN: opt < %s -analyze -lda | FileCheck %s
+
+;; x[5] = x[6] // with x being a pointer passed as argument
+
+define void @f1(i32* nocapture %xptr) nounwind {
+entry:
+  %x.ld.addr = getelementptr i32* %xptr, i64 6
+  %x.st.addr = getelementptr i32* %xptr, 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
+; CHECK: 0,1: dep
+  %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
+}
+
+;; 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
+; CHECK: 0,1: ind
+  %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
+}