[Hexagon] Add more lit tests

llvm-svn: 327271

1 files changed, 27 insertions, 0 deletions

diff --git a/llvm/test/CodeGen/Hexagon/add-use.ll b/llvm/test/CodeGen/Hexagon/add-use.ll
new file mode 100644
index 00000000000..c5e8d49ac6e
--- /dev/null
+++ b/llvm/test/CodeGen/Hexagon/add-use.ll
@@ -0,0 +1,27 @@
+; RUN: llc -march=hexagon < %s | FileCheck %s
+
+; Do not want to see register copies in the loop.
+; CHECK-NOT: r{{[0-9]*}} = r{{[0-9]*}}
+
+target triple = "hexagon"
+
+; Function Attrs: nounwind readnone
+define i32 @f0(i32 %a0) #0 {
+b0:
+  br label %b1
+
+b1:                                               ; preds = %b1, %b0
+  %v0 = phi i32 [ 0, %b0 ], [ %v1, %b1 ]
+  %v1 = add nsw i32 %v0, 3
+  %v2 = add i32 %v1, -3
+  %v3 = icmp slt i32 %v2, %a0
+  br i1 %v3, label %b1, label %b2
+
+b2:                                               ; preds = %b1
+  %v4 = phi i32 [ %v1, %b1 ]
+  %v5 = icmp slt i32 %v4, 100
+  %v6 = zext i1 %v5 to i32
+  ret i32 %v6
+}
+
+attributes #0 = { nounwind readnone }