Implement a basic MCCodeEmitter for PPC. This doesn't handle

fixups yet, and doesn't handle actually encoding operand values,
but this is enough for llc -show-mc-encoding to show the base
instruction encoding information, e.g.:

	mflr r0                         ; encoding: [0x7c,0x08,0x02,0xa6]
	stw r0, 8(r1)                   ; encoding: [0x90,0x00,0x00,0x00]
	stwu r1, -64(r1)                ; encoding: [0x94,0x00,0x00,0x00]
Ltmp0:
	lhz r4, 4(r3)                   ; encoding: [0xa0,0x00,0x00,0x00]
	cmplwi cr0, r4, 8               ; encoding: [0x28,0x00,0x00,0x00]
	beq cr0, LBB0_2                 ; encoding: [0x40,0x00,0x00,0x00]



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119116 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 6 insertions, 1 deletions

diff --git a/lib/Target/PowerPC/PPC.h b/lib/Target/PowerPC/PPC.h
index 460d8e1744..dbe98a68db 100644
--- a/lib/Target/PowerPC/PPC.h
+++ b/lib/Target/PowerPC/PPC.h
@@ -25,13 +25,18 @@ namespace llvm {
   class JITCodeEmitter;
   class Target;
   class MachineInstr;
-  class MCInst;
   class AsmPrinter;
+  class MCInst;
+  class MCCodeEmitter;
+  class MCContext;
+  class TargetMachine;
   
   FunctionPass *createPPCBranchSelectionPass();
   FunctionPass *createPPCISelDag(PPCTargetMachine &TM);
   FunctionPass *createPPCJITCodeEmitterPass(PPCTargetMachine &TM,
                                             JITCodeEmitter &MCE);
+  MCCodeEmitter *createPPCMCCodeEmitter(const Target &, TargetMachine &TM,
+                                        MCContext &Ctx);
   
   void LowerPPCMachineInstrToMCInst(const MachineInstr *MI, MCInst &OutMI,
                                     AsmPrinter &AP);