Add CodeEmitter and JITInfo stubs. Dump the old

PowerPCTargetMachine::addPassesToJITCompile() method, in favor of the
TargetJITInfo interface.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10971 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 51 insertions, 4 deletions

diff --git a/lib/Target/PowerPC/PowerPCJITInfo.h b/lib/Target/PowerPC/PowerPCJITInfo.h
new file mode 100644
index 0000000000..bd80851599
--- /dev/null
+++ b/lib/Target/PowerPC/PowerPCJITInfo.h
@@ -0,0 +1,49 @@
+//===- PowerPCJITInfo.h - PowerPC impl. of the JIT interface ----*- C++ -*-===//
+// 
+//                     The LLVM Compiler Infrastructure
+//
+// This file was developed by the LLVM research group and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// 
+//===----------------------------------------------------------------------===//
+//
+// This file contains the PowerPC implementation of the TargetJITInfo class.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef POWERPCJITINFO_H
+#define POWERPCJITINFO_H
+
+#include "llvm/Target/TargetJITInfo.h"
+
+namespace llvm {
+  class TargetMachine;
+  class IntrinsicLowering;
+
+  class PowerPCJITInfo : public TargetJITInfo {
+    TargetMachine &TM;
+  public:
+    PowerPCJITInfo(TargetMachine &tm) : TM(tm) {}
+
+    /// addPassesToJITCompile - Add passes to the specified pass manager to
+    /// implement a fast dynamic compiler for this target.  Return true if this
+    /// is not supported for this target.
+    ///
+    virtual void addPassesToJITCompile(FunctionPassManager &PM);
+    
+    /// replaceMachineCodeForFunction - Make it so that calling the function
+    /// whose machine code is at OLD turns into a call to NEW, perhaps by
+    /// overwriting OLD with a branch to NEW.  This is used for self-modifying
+    /// code.
+    ///
+    virtual void replaceMachineCodeForFunction(void *Old, void *New);
+    
+    /// getJITStubForFunction - Create or return a stub for the specified
+    /// function.  This stub acts just like the specified function, except that
+    /// it allows the "address" of the function to be taken without having to
+    /// generate code for it.
+    virtual void *getJITStubForFunction(Function *F, MachineCodeEmitter &MCE);
+  };
+}
+
+#endif
diff --git a/lib/Target/PowerPC/PowerPCTargetMachine.cpp b/lib/Target/PowerPC/PowerPCTargetMachine.cpp
index 11b5a799b1..3cf8c374e4 100644
--- a/lib/Target/PowerPC/PowerPCTargetMachine.cpp
+++ b/lib/Target/PowerPC/PowerPCTargetMachine.cpp
@@ -43,11 +43,9 @@ bool PowerPCTargetMachine::addPassesToEmitAssembly(PassManager &PM,
 }
 
 /// addPassesToJITCompile - Add passes to the specified pass manager to
-/// implement a fast dynamic compiler for this target.  Return true if this is
-/// not supported for this target.
+/// implement a fast dynamic compiler for this target.
 ///
-bool PowerPCTargetMachine::addPassesToJITCompile(FunctionPassManager &PM) {
-  return true;
+void PowerPCJITInfo::addPassesToJITCompile(FunctionPassManager &PM) {
 }
 
 } // end namespace llvm