Enable aliases on arm-linux.

llvm-svn: 37042
diff --git a/llvm/lib/Target/ARM/ARMTargetAsmInfo.cpp b/llvm/lib/Target/ARM/ARMTargetAsmInfo.cpp
index c7cf074..13b9362 100644
--- a/llvm/lib/Target/ARM/ARMTargetAsmInfo.cpp
+++ b/llvm/lib/Target/ARM/ARMTargetAsmInfo.cpp
@@ -69,6 +69,7 @@
     ReadOnlySection = "\t.section\t.rodata\n";
     PrivateGlobalPrefix = ".L";
     WeakRefDirective = "\t.weak\t";
+    SetDirective = "\t.set\t";
     DwarfRequiresFrameSection = false;
     DwarfAbbrevSection =  "\t.section\t.debug_abbrev,\"\",%progbits";
     DwarfInfoSection =    "\t.section\t.debug_info,\"\",%progbits";