[Hexagon] Add more lit tests

llvm-svn: 327271

1 files changed, 20 insertions, 0 deletions

diff --git a/llvm/test/CodeGen/Hexagon/hwloop-ice.ll b/llvm/test/CodeGen/Hexagon/hwloop-ice.ll
new file mode 100644
index 00000000000..57e2faaa3a2
--- /dev/null
+++ b/llvm/test/CodeGen/Hexagon/hwloop-ice.ll
@@ -0,0 +1,20 @@
+; RUN: llc -O2 -march=hexagon < %s
+; REQUIRES: asserts
+
+; Function Attrs: nounwind
+define void @f0(i32 %a0) #0 {
+b0:
+  %v0 = icmp ugt i32 %a0, 1
+  br i1 %v0, label %b1, label %b2
+
+b1:                                               ; preds = %b1, %b0
+  %v1 = phi i32 [ %v2, %b1 ], [ 0, %b0 ]
+  %v2 = add nsw i32 %v1, 2
+  %v3 = icmp slt i32 %v2, 0
+  br i1 %v3, label %b1, label %b2
+
+b2:                                               ; preds = %b1, %b0
+  unreachable
+}
+
+attributes #0 = { nounwind }