From aabb9a5359cbb0bf9d25bfb917ecb09c086d034b Mon Sep 17 00:00:00 2001
From: Bruno Cardoso Lopes <bruno.cardoso@gmail.com>
Date: Mon, 6 Jul 2009 05:09:34 +0000
Subject: Add the Object Code Emitter class. Original patch by Aaron Gray, I
 did some cleanup, removed some #includes and moved Object Code Emitter
 out-of-line.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74813 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/PowerPC/PPCTargetMachine.cpp | 48 +++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)

(limited to 'lib/Target/PowerPC/PPCTargetMachine.cpp')

diff --git a/lib/Target/PowerPC/PPCTargetMachine.cpp b/lib/Target/PowerPC/PPCTargetMachine.cpp
index e9073d6..6e30df4 100644
--- a/lib/Target/PowerPC/PPCTargetMachine.cpp
+++ b/lib/Target/PowerPC/PPCTargetMachine.cpp
@@ -221,6 +221,38 @@ bool PPCTargetMachine::addCodeEmitter(PassManagerBase &PM,
   return false;
 }
 
+bool PPCTargetMachine::addCodeEmitter(PassManagerBase &PM,
+                                      CodeGenOpt::Level OptLevel,
+                                      bool DumpAsm, ObjectCodeEmitter &OCE) {
+  // The JIT should use the static relocation model in ppc32 mode, PIC in ppc64.
+  // FIXME: This should be moved to TargetJITInfo!!
+  if (Subtarget.isPPC64()) {
+    // We use PIC codegen in ppc64 mode, because otherwise we'd have to use many
+    // instructions to materialize arbitrary global variable + function +
+    // constant pool addresses.
+    setRelocationModel(Reloc::PIC_);
+    // Temporary workaround for the inability of PPC64 JIT to handle jump
+    // tables.
+    DisableJumpTables = true;      
+  } else {
+    setRelocationModel(Reloc::Static);
+  }
+  
+  // Inform the subtarget that we are in JIT mode.  FIXME: does this break macho
+  // writing?
+  Subtarget.SetJITMode();
+  
+  // Machine code emitter pass for PowerPC.
+  PM.add(createPPCObjectCodeEmitterPass(*this, OCE));
+  if (DumpAsm) {
+    assert(AsmPrinterCtor && "AsmPrinter was not linked in");
+    if (AsmPrinterCtor)
+      PM.add(AsmPrinterCtor(errs(), *this, true));
+  }
+
+  return false;
+}
+
 bool PPCTargetMachine::addSimpleCodeEmitter(PassManagerBase &PM,
                                             CodeGenOpt::Level OptLevel,
                                             bool DumpAsm, 
@@ -251,3 +283,19 @@ bool PPCTargetMachine::addSimpleCodeEmitter(PassManagerBase &PM,
   return false;
 }
 
+bool PPCTargetMachine::addSimpleCodeEmitter(PassManagerBase &PM,
+                                            CodeGenOpt::Level OptLevel,
+                                            bool DumpAsm,
+                                            ObjectCodeEmitter &OCE) {
+  // Machine code emitter pass for PowerPC.
+  PM.add(createPPCObjectCodeEmitterPass(*this, OCE));
+  if (DumpAsm) {
+    assert(AsmPrinterCtor && "AsmPrinter was not linked in");
+    if (AsmPrinterCtor)
+      PM.add(AsmPrinterCtor(errs(), *this, true));
+  }
+
+  return false;
+}
+
+
-- 
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