1 files changed, 28 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/Hexagon/hwloop-swap.ll b/llvm/test/CodeGen/Hexagon/hwloop-swap.ll
new file mode 100644
index 00000000000..fdb154ab5bb
--- /dev/null
+++ b/llvm/test/CodeGen/Hexagon/hwloop-swap.ll
@@ -0,0 +1,28 @@
+; RUN: llc -march=hexagon < %s | FileCheck %s
+
+; Test that the hardware loop pass does not alter the comparison
+; to use the result from the induction expression instead of
+; from the Phi.
+
+; CHECK: cmpb.gtu([[REG0:r[0-9]+]]
+; CHECK: [[REG0]] = add([[REG0]],
+
+define void @f0() #0 {
+b0:
+  br label %b1
+
+b1:                                               ; preds = %b1, %b0
+  br i1 undef, label %b1, label %b2
+
+b2:                                               ; preds = %b2, %b1
+  %v0 = phi i32 [ %v3, %b2 ], [ undef, %b1 ]
+  %v1 = trunc i32 %v0 to i8
+  %v2 = icmp ugt i8 %v1, 44
+  %v3 = add i32 %v0, -30
+  br i1 %v2, label %b2, label %b3
+
+b3:                                               ; preds = %b2
+  ret void
+}
+
+attributes #0 = { nounwind "target-cpu"="hexagonv55" }