Sink getDwarfRegNum, getLLVMRegNum, getSEHRegNum from TargetRegisterInfo down
to MCRegisterInfo. Also initialize the mapping at construction time.

This patch eliminate TargetRegisterInfo from TargetAsmInfo. It's another step
towards fixing the layering violation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135424 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/CellSPU/MCTargetDesc/SPUMCTargetDesc.cpp b/lib/Target/CellSPU/MCTargetDesc/SPUMCTargetDesc.cpp
index 26c5a4b..7d9b295 100644
--- a/lib/Target/CellSPU/MCTargetDesc/SPUMCTargetDesc.cpp
+++ b/lib/Target/CellSPU/MCTargetDesc/SPUMCTargetDesc.cpp
@@ -39,6 +39,17 @@
   TargetRegistry::RegisterMCInstrInfo(TheCellSPUTarget, createSPUMCInstrInfo);
 }
 
+static MCRegisterInfo *createCellSPUMCRegisterInfo(StringRef TT) {
+  MCRegisterInfo *X = new MCRegisterInfo();
+  InitSPUMCRegisterInfo(X, SPU::R0);
+  return X;
+}
+
+extern "C" void LLVMInitializeCellSPUMCRegisterInfo() {
+  TargetRegistry::RegisterMCRegInfo(TheCellSPUTarget,
+                                    createCellSPUMCRegisterInfo);
+}
+
 static MCSubtargetInfo *createSPUMCSubtargetInfo(StringRef TT, StringRef CPU,
                                                  StringRef FS) {
   MCSubtargetInfo *X = new MCSubtargetInfo();