[Hexagon] Add REQUIRES: asserts to testcases that use -stats

llvm-svn: 327281
diff --git a/llvm/test/CodeGen/Hexagon/swp-chain-refs.ll b/llvm/test/CodeGen/Hexagon/swp-chain-refs.ll
index d340ff6..d0e72be 100644
--- a/llvm/test/CodeGen/Hexagon/swp-chain-refs.ll
+++ b/llvm/test/CodeGen/Hexagon/swp-chain-refs.ll
@@ -1,5 +1,6 @@
 ; RUN: llc -march=hexagon -enable-pipeliner=true -stats -o /dev/null < %s \
 ; RUN:      2>&1 | FileCheck %s --check-prefix=STATS
+; REQUIRES: asserts
 
 ; Test that we do not schedule chained references too far apart,
 ; which enables the loop to be pipelined. In this test, the loop should