1 files changed, 42 insertions, 0 deletions
diff --git a/polly/test/ForwardOpTree/noforward_phi.ll b/polly/test/ForwardOpTree/noforward_phi.ll
new file mode 100644
index 00000000000..ccdf6c7c0f2
--- /dev/null
+++ b/polly/test/ForwardOpTree/noforward_phi.ll
@@ -0,0 +1,42 @@
+; RUN: opt %loadPolly -polly-optree -analyze < %s | FileCheck %s -match-full-lines
+;
+; Do not move PHI nodes.
+;
+; for (int j = 0; j < n; j += 1) {
+; bodyA:
+;   double val = 42.0;
+;
+; bodyB:
+;   A[0] = val;
+; }
+;
+define void @func(i32 %n, double* noalias nonnull %A) {
+entry:
+  br label %for
+
+for:
+  %j = phi i32 [0, %entry], [%j.inc, %inc]
+  %j.cmp = icmp slt i32 %j, %n
+  br i1 %j.cmp, label %bodyA, label %exit
+
+    bodyA:
+      %val =  phi double [42.0, %for]
+      br label %bodyB
+
+    bodyB:
+      store double %val, double* %A
+      br label %inc
+
+inc:
+  %j.inc = add nuw nsw i32 %j, 1
+  br label %for
+
+exit:
+  br label %return
+
+return:
+  ret void
+}
+
+
+; CHECK: ForwardOpTree executed, but did not modify anything