1 files changed, 26 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/AArch64/fast-isel-switch-phi.ll b/llvm/test/CodeGen/AArch64/fast-isel-switch-phi.ll
new file mode 100644
index 00000000000..f2d8090aa0a
--- /dev/null
+++ b/llvm/test/CodeGen/AArch64/fast-isel-switch-phi.ll
@@ -0,0 +1,26 @@
+; RUN: llc -mtriple=aarch64-apple-darwin -fast-isel -verify-machineinstrs < %s
+; REQUIRES: asserts
+
+; Test that the Machine Instruction PHI node doesn't have more than one operand
+; from the same predecessor.
+define i32 @foo(i32 %a, i32 %b, i1 %c) {
+entry:
+  br i1 %c, label %switch, label %direct
+
+switch:
+  switch i32 %a, label %exit [
+    i32 43, label %continue
+    i32 45, label %continue
+  ]
+
+direct:
+  %var = add i32 %b, 1
+  br label %continue
+
+continue:
+  %var.phi = phi i32 [ %var, %direct ], [ 0, %switch ], [ 0, %switch ]
+  ret i32 %var.phi
+
+exit:
+  ret i32 1
+}