Move the global variables representing each Target behind accessor function

This avoids "static initialization order fiasco"

Differential Revision: https://reviews.llvm.org/D25412

llvm-svn: 283702
diff --git a/llvm/lib/Target/PowerPC/Disassembler/PPCDisassembler.cpp b/llvm/lib/Target/PowerPC/Disassembler/PPCDisassembler.cpp
index c5eafcf..12ffbfd 100644
--- a/llvm/lib/Target/PowerPC/Disassembler/PPCDisassembler.cpp
+++ b/llvm/lib/Target/PowerPC/Disassembler/PPCDisassembler.cpp
@@ -51,11 +51,11 @@
 
 extern "C" void LLVMInitializePowerPCDisassembler() {
   // Register the disassembler for each target.
-  TargetRegistry::RegisterMCDisassembler(ThePPC32Target,
+  TargetRegistry::RegisterMCDisassembler(getThePPC32Target(),
                                          createPPCDisassembler);
-  TargetRegistry::RegisterMCDisassembler(ThePPC64Target,
+  TargetRegistry::RegisterMCDisassembler(getThePPC64Target(),
                                          createPPCDisassembler);
-  TargetRegistry::RegisterMCDisassembler(ThePPC64LETarget,
+  TargetRegistry::RegisterMCDisassembler(getThePPC64LETarget(),
                                          createPPCLEDisassembler);
 }