Completely rearchitect the interface between targets and the pass manager.

This pass:

1. Splits TargetMachine into TargetMachine (generic targets, can be implemented
any way, like the CBE) and LLVMTargetMachine (subclass of TM that is used by
things using libcodegen and other support).
2. Instead of having each target fully populate the passmgr for file or JIT
   output, move all this to common code, and give targets hooks they can
   implement.
3. Commonalize the target population stuff between file emission and JIT
   emission.
4. All (native code) codegen stuff now happens in a FunctionPassManager, which
   paves the way for "fast -O0" stuff in the CFE later, and now LLC could
   lazily stream .bc files from disk to use less memory.
5. There are now many fewer #includes and the targets don't depend on the
   scalar xforms or libanalysis anymore (but codegen does).
6. Changing common code generator pass ordering stuff no longer requires
   touching all targets.
7. The JIT now has the option of "-fast" codegen or normal optimized codegen,
   which is now orthogonal to the fact that JIT'ing is being done.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30081 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 10 insertions, 6 deletions

diff --git a/lib/Target/PowerPC/PPCTargetMachine.h b/lib/Target/PowerPC/PPCTargetMachine.h
index 266ef18044..9a77a4fcb8 100644
--- a/lib/Target/PowerPC/PPCTargetMachine.h
+++ b/lib/Target/PowerPC/PPCTargetMachine.h
@@ -28,7 +28,7 @@ class GlobalValue;
 
 /// PPCTargetMachine - Common code between 32-bit and 64-bit PowerPC targets.
 ///
-class PPCTargetMachine : public TargetMachine {
+class PPCTargetMachine : public LLVMTargetMachine {
   PPCSubtarget        Subtarget;
   const TargetData    DataLayout;       // Calculates type size & alignment
   PPCInstrInfo        InstrInfo;
@@ -55,12 +55,16 @@ public:
     return InstrItins;
   }
   
-
-  virtual bool addPassesToEmitFile(PassManager &PM, std::ostream &Out,
-                                   CodeGenFileType FileType, bool Fast);
   
-  bool addPassesToEmitMachineCode(FunctionPassManager &PM,
-                                  MachineCodeEmitter &MCE);
+  // Pass Pipeline Configuration
+  virtual bool addInstSelector(FunctionPassManager &PM, bool Fast);
+  virtual bool addPreEmitPass(FunctionPassManager &PM, bool Fast);
+  virtual bool addAssemblyEmitter(FunctionPassManager &PM, bool Fast, 
+                                  std::ostream &Out);
+  virtual bool addObjectWriter(FunctionPassManager &PM, bool Fast,
+                               std::ostream &Out);
+  virtual bool addCodeEmitter(FunctionPassManager &PM, bool Fast,
+                              MachineCodeEmitter &MCE);
 };
 
 /// PPC32TargetMachine - PowerPC 32-bit target machine.