Force triple in tests.

llvm-svn: 84257
diff --git a/llvm/test/MC/AsmParser/variables.s b/llvm/test/MC/AsmParser/variables.s
index 86fea27..cb004d7 100644
--- a/llvm/test/MC/AsmParser/variables.s
+++ b/llvm/test/MC/AsmParser/variables.s
@@ -1,4 +1,4 @@
-// RUN: llvm-mc %s
+// RUN: llvm-mc -triple i386-unknown-unknown %s
 
         .data
         t0_v0 = 1