X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FTarget%2FMips%2FMipsTargetMachine.cpp;h=9af2f1b201d973953f81a99238ec94fa316a4f08;hb=9a308df027b60057d0fe3ba7a3ee9648f6677879;hp=482eba544d3b4df267fbc40731a9878e67b916d4;hpb=b889e0cd2fea4afee623d5be603b912b955a2eca;p=oota-llvm.git

diff --git a/lib/Target/Mips/MipsTargetMachine.cpp b/lib/Target/Mips/MipsTargetMachine.cpp
index 482eba544d3..9af2f1b201d 100644
--- a/lib/Target/Mips/MipsTargetMachine.cpp
+++ b/lib/Target/Mips/MipsTargetMachine.cpp
@@ -15,11 +15,27 @@
 #include "Mips.h"
 #include "MipsFrameLowering.h"
 #include "MipsInstrInfo.h"
-#include "llvm/PassManager.h"
+#include "MipsModuleISelDAGToDAG.h"
+#include "MipsOs16.h"
+#include "MipsSEFrameLowering.h"
+#include "MipsSEInstrInfo.h"
+#include "MipsSEISelLowering.h"
+#include "MipsSEISelDAGToDAG.h"
+#include "Mips16FrameLowering.h"
+#include "Mips16HardFloat.h"
+#include "Mips16InstrInfo.h"
+#include "Mips16ISelDAGToDAG.h"
+#include "Mips16ISelLowering.h"
+#include "llvm/Analysis/TargetTransformInfo.h"
 #include "llvm/CodeGen/Passes.h"
+#include "llvm/PassManager.h"
+#include "llvm/Support/Debug.h"
+#include "llvm/Support/raw_ostream.h"
 #include "llvm/Support/TargetRegistry.h"
 using namespace llvm;
 
+
+
 extern "C" void LLVMInitializeMipsTarget() {
   // Register the target.
   RegisterTargetMachine<MipsebTargetMachine> X(TheMipsTarget);
@@ -42,20 +58,59 @@ MipsTargetMachine(const Target &T, StringRef TT,
                   CodeGenOpt::Level OL,
                   bool isLittle)
   : LLVMTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL),
-    Subtarget(TT, CPU, FS, isLittle),
-    ELFWriterInfo(false, isLittle),
-    DataLayout(isLittle ?
+    Subtarget(TT, CPU, FS, isLittle, RM, this),
+    DL(isLittle ?
                (Subtarget.isABI_N64() ?
-                "e-p:64:64:64-i8:8:32-i16:16:32-i64:64:64-f128:128:128-n32" :
-                "e-p:32:32:32-i8:8:32-i16:16:32-i64:64:64-n32") :
+                "e-p:64:64:64-i8:8:32-i16:16:32-i64:64:64-f128:128:128-"
+                "n32:64-S128" :
+                "e-p:32:32:32-i8:8:32-i16:16:32-i64:64:64-n32-S64") :
                (Subtarget.isABI_N64() ?
-                "E-p:64:64:64-i8:8:32-i16:16:32-i64:64:64-f128:128:128-n32" :
-                "E-p:32:32:32-i8:8:32-i16:16:32-i64:64:64-n32")),
+                "E-p:64:64:64-i8:8:32-i16:16:32-i64:64:64-f128:128:128-"
+                "n32:64-S128" :
+                "E-p:32:32:32-i8:8:32-i16:16:32-i64:64:64-n32-S64")),
     InstrInfo(MipsInstrInfo::create(*this)),
     FrameLowering(MipsFrameLowering::create(*this, Subtarget)),
-    TLInfo(*this), TSInfo(*this), JITInfo() {
+    TLInfo(MipsTargetLowering::create(*this)),
+    TSInfo(*this), JITInfo() {
+  initAsmInfo();
+}
+
+
+void MipsTargetMachine::setHelperClassesMips16() {
+  InstrInfoSE.swap(InstrInfo);
+  FrameLoweringSE.swap(FrameLowering);
+  TLInfoSE.swap(TLInfo);
+  if (!InstrInfo16) {
+    InstrInfo.reset(MipsInstrInfo::create(*this));
+    FrameLowering.reset(MipsFrameLowering::create(*this, Subtarget));
+    TLInfo.reset(MipsTargetLowering::create(*this));
+  } else {
+    InstrInfo16.swap(InstrInfo);
+    FrameLowering16.swap(FrameLowering);
+    TLInfo16.swap(TLInfo);
+  }
+  assert(TLInfo && "null target lowering 16");
+  assert(InstrInfo && "null instr info 16");
+  assert(FrameLowering && "null frame lowering 16");
 }
 
+void MipsTargetMachine::setHelperClassesMipsSE() {
+  InstrInfo16.swap(InstrInfo);
+  FrameLowering16.swap(FrameLowering);
+  TLInfo16.swap(TLInfo);
+  if (!InstrInfoSE) {
+    InstrInfo.reset(MipsInstrInfo::create(*this));
+    FrameLowering.reset(MipsFrameLowering::create(*this, Subtarget));
+    TLInfo.reset(MipsTargetLowering::create(*this));
+  } else {
+    InstrInfoSE.swap(InstrInfo);
+    FrameLoweringSE.swap(FrameLowering);
+    TLInfoSE.swap(TLInfo);
+  }
+  assert(TLInfo && "null target lowering in SE");
+  assert(InstrInfo && "null instr info SE");
+  assert(FrameLowering && "null frame lowering SE");
+}
 void MipsebTargetMachine::anchor() { }
 
 MipsebTargetMachine::
@@ -89,6 +144,7 @@ public:
     return *getMipsTargetMachine().getSubtargetImpl();
   }
 
+  virtual void addIRPasses();
   virtual bool addInstSelector();
   virtual bool addPreEmitPass();
 };
@@ -98,23 +154,54 @@ TargetPassConfig *MipsTargetMachine::createPassConfig(PassManagerBase &PM) {
   return new MipsPassConfig(this, PM);
 }
 
+void MipsPassConfig::addIRPasses() {
+  TargetPassConfig::addIRPasses();
+  if (getMipsSubtarget().os16())
+    addPass(createMipsOs16(getMipsTargetMachine()));
+  if (getMipsSubtarget().inMips16HardFloat())
+    addPass(createMips16HardFloat(getMipsTargetMachine()));
+  addPass(createMipsOptimizeMathLibCalls(getMipsTargetMachine()));
+}
 // Install an instruction selector pass using
 // the ISelDag to gen Mips code.
 bool MipsPassConfig::addInstSelector() {
-  addPass(createMipsISelDag(getMipsTargetMachine()));
+  if (getMipsSubtarget().allowMixed16_32()) {
+    addPass(createMipsModuleISelDag(getMipsTargetMachine()));
+    addPass(createMips16ISelDag(getMipsTargetMachine()));
+    addPass(createMipsSEISelDag(getMipsTargetMachine()));
+  } else {
+    addPass(createMipsISelDag(getMipsTargetMachine()));
+  }
   return false;
 }
 
+void MipsTargetMachine::addAnalysisPasses(PassManagerBase &PM) {
+  if (Subtarget.allowMixed16_32()) {
+    DEBUG(errs() << "No ");
+    //FIXME: The Basic Target Transform Info
+    // pass needs to become a function pass instead of
+    // being an immutable pass and then this method as it exists now
+    // would be unnecessary.
+    PM.add(createNoTargetTransformInfoPass());
+  } else
+    LLVMTargetMachine::addAnalysisPasses(PM);
+  DEBUG(errs() << "Target Transform Info Pass Added\n");
+}
+
 // Implemented by targets that want to run passes immediately before
 // machine code is emitted. return true if -print-machineinstrs should
 // print out the code after the passes.
 bool MipsPassConfig::addPreEmitPass() {
   MipsTargetMachine &TM = getMipsTargetMachine();
+  const MipsSubtarget &Subtarget = TM.getSubtarget<MipsSubtarget>();
   addPass(createMipsDelaySlotFillerPass(TM));
 
-  // NOTE: long branch has not been implemented for mips16.
-  if (TM.getSubtarget<MipsSubtarget>().hasStandardEncoding())
+  if (Subtarget.hasStandardEncoding() ||
+      Subtarget.allowMixed16_32())
     addPass(createMipsLongBranchPass(TM));
+  if (Subtarget.inMips16Mode() ||
+      Subtarget.allowMixed16_32())
+    addPass(createMipsConstantIslandPass(TM));
 
   return true;
 }