Allow itineraries to be passed through the Target Machine.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24139 91177308-0d34-0410-b5e6-96231b3b80d8

4 files changed, 21 insertions, 5 deletions

diff --git a/lib/Target/PowerPC/PPCSubtarget.cpp b/lib/Target/PowerPC/PPCSubtarget.cpp
index 94af54c..442017d 100644
--- a/lib/Target/PowerPC/PPCSubtarget.cpp
+++ b/lib/Target/PowerPC/PPCSubtarget.cpp
@@ -71,6 +71,7 @@ static const char *GetCurrentPowerPCCPU() {
 
 PPCSubtarget::PPCSubtarget(const Module &M, const std::string &FS)
   : StackAlignment(16)
+  , InstrItins()
   , IsGigaProcessor(false)
   , Is64Bit(false)
   , Has64BitRegs(false)
diff --git a/lib/Target/PowerPC/PPCSubtarget.h b/lib/Target/PowerPC/PPCSubtarget.h
index a457751..3f1454c 100644
--- a/lib/Target/PowerPC/PPCSubtarget.h
+++ b/lib/Target/PowerPC/PPCSubtarget.h
@@ -14,6 +14,7 @@
 #ifndef POWERPCSUBTARGET_H
 #define POWERPCSUBTARGET_H
 
+#include "llvm/Target/TargetInstrItineraries.h"
 #include "llvm/Target/TargetSubtarget.h"
 
 #include <string>
@@ -26,6 +27,9 @@ protected:
   /// stackAlignment - The minimum alignment known to hold of the stack frame on
   /// entry to the function and which must be maintained by every function.
   unsigned StackAlignment;
+  
+  /// Selected instruction itineraries (one entry per itinerary class.)
+  InstrItineraryData InstrItins;
 
   /// Used by the ISel to turn in optimizations for POWER4-derived architectures
   bool IsGigaProcessor;
@@ -49,6 +53,11 @@ public:
   /// stack frame on entry to the function and which must be maintained by every
   /// function for this subtarget.
   unsigned getStackAlignment() const { return StackAlignment; }
+  
+  /// getInstrItins - Return the instruction itineraies based on subtarget 
+  /// selection.
+  const InstrItineraryData getInstrItineraryData() const { return InstrItins; }
+  
 
   bool hasFSQRT() const { return HasFSQRT; }
   bool has64BitRegs() const { return Has64BitRegs; }
diff --git a/lib/Target/PowerPC/PPCTargetMachine.cpp b/lib/Target/PowerPC/PPCTargetMachine.cpp
index bd31e97..9a88750 100644
--- a/lib/Target/PowerPC/PPCTargetMachine.cpp
+++ b/lib/Target/PowerPC/PPCTargetMachine.cpp
@@ -64,7 +64,8 @@ unsigned PPCTargetMachine::getModuleMatchQuality(const Module &M) {
 PPCTargetMachine::PPCTargetMachine(const Module &M, IntrinsicLowering *IL,
                                    const std::string &FS)
 : TargetMachine("PowerPC", IL, false, 4, 4, 4, 4, 4, 4, 2, 1, 1),
-  Subtarget(M, FS), FrameInfo(*this, false), JITInfo(*this) {
+  Subtarget(M, FS), FrameInfo(*this, false), JITInfo(*this),
+  InstrItins(Subtarget.getInstrItineraryData()) {
   if (TargetDefault == PPCTarget) {
     if (Subtarget.isAIX()) PPCTarget = TargetAIX;
     if (Subtarget.isDarwin()) PPCTarget = TargetDarwin;
diff --git a/lib/Target/PowerPC/PPCTargetMachine.h b/lib/Target/PowerPC/PPCTargetMachine.h
index 5ba4f32..1295a59 100644
--- a/lib/Target/PowerPC/PPCTargetMachine.h
+++ b/lib/Target/PowerPC/PPCTargetMachine.h
@@ -27,10 +27,11 @@ class GlobalValue;
 class IntrinsicLowering;
 
 class PPCTargetMachine : public TargetMachine {
-  PPCInstrInfo    InstrInfo;
-  PPCSubtarget    Subtarget;
-  PPCFrameInfo    FrameInfo;
-  PPCJITInfo      JITInfo;
+  PPCInstrInfo           InstrInfo;
+  PPCSubtarget           Subtarget;
+  PPCFrameInfo           FrameInfo;
+  PPCJITInfo             JITInfo;
+  InstrItineraryData     InstrItins;
 public:
   PPCTargetMachine(const Module &M, IntrinsicLowering *IL,
                    const std::string &FS);
@@ -42,6 +43,10 @@ public:
   virtual const MRegisterInfo    *getRegisterInfo() const {
     return &InstrInfo.getRegisterInfo();
   }
+  virtual const InstrItineraryData getInstrItineraryData() const {  
+    return InstrItins;
+  }
+  
 
   static unsigned getJITMatchQuality();