llvm/test/Transforms/LoopStrengthReduce/ARM64/lsr-*.ll: Add explicit triple arm64-unknown for targeting pecoff.

llvm-svn: 205125
diff --git a/llvm/test/Transforms/LoopStrengthReduce/ARM64/lsr-memcpy.ll b/llvm/test/Transforms/LoopStrengthReduce/ARM64/lsr-memcpy.ll
index 16f6afa..9a175ad 100644
--- a/llvm/test/Transforms/LoopStrengthReduce/ARM64/lsr-memcpy.ll
+++ b/llvm/test/Transforms/LoopStrengthReduce/ARM64/lsr-memcpy.ll
@@ -1,4 +1,4 @@
-; RUN: llc -march=arm64 -mcpu=cyclone -pre-RA-sched=list-hybrid < %s | FileCheck %s
+; RUN: llc -mtriple=arm64-unknown-unknown -mcpu=cyclone -pre-RA-sched=list-hybrid < %s | FileCheck %s
 ; rdar://10232252
 ; Prevent LSR of doing poor choice that cannot be folded in addressing mode