Have MachineFunction cache a pointer to the subtarget to make lookups

[oota-llvm.git] / include / llvm / CodeGen / MachineFunction.h

diff --git a/include/llvm/CodeGen/MachineFunction.h b/include/llvm/CodeGen/MachineFunction.h
index f4c2542b990de42d4a17e46f47ace590b7cde95b..ef77b6069fcc2db00d2a6f6e35ee0affa09fc491 100644 (file)
--- a/include/llvm/CodeGen/MachineFunction.h
+++ b/include/llvm/CodeGen/MachineFunction.h
@@ -21,6 +21,7 @@
 #include "llvm/ADT/ilist.h"
 #include "llvm/CodeGen/MachineBasicBlock.h"
 #include "llvm/IR/DebugLoc.h"
+#include "llvm/IR/Metadata.h"
 #include "llvm/Support/Allocator.h"
 #include "llvm/Support/ArrayRecycler.h"
 #include "llvm/Support/Recycler.h"
@@ -38,6 +39,7 @@ class MachineModuleInfo;
 class MCContext;
 class Pass;
 class TargetMachine;
+class TargetSubtargetInfo;
 class TargetRegisterClass;
 struct MachinePointerInfo;
 
@@ -75,6 +77,7 @@ struct MachineFunctionInfo {
 class MachineFunction {
   const Function *Fn;
   const TargetMachine &Target;
+  const TargetSubtargetInfo *STI;
   MCContext &Ctx;
   MachineModuleInfo &MMI;
   GCModuleInfo *GMI;
@@ -162,6 +165,11 @@ public:
   ///
   const TargetMachine &getTarget() const { return Target; }
 
+  /// getSubtarget - Return the subtarget for which this machine code is being
+  /// compiled.
+  const TargetSubtargetInfo &getSubtarget() const { return *STI; }
+  void setSubtarget(TargetSubtargetInfo *ST) { STI = ST; }
+
   /// getRegInfo - Return information about the registers currently in use.
   ///
   MachineRegisterInfo &getRegInfo() { return *RegInfo; }
@@ -227,19 +235,14 @@ public:
   void setHasInlineAsm(bool B) {
     HasInlineAsm = B;
   }
-  
+
   /// getInfo - Keep track of various per-function pieces of information for
   /// backends that would like to do so.
   ///
   template<typename Ty>
   Ty *getInfo() {
-    if (!MFInfo) {
-        // This should be just `new (Allocator.Allocate<Ty>()) Ty(*this)', but
-        // that apparently breaks GCC 3.3.
-        Ty *Loc = static_cast<Ty*>(Allocator.Allocate(sizeof(Ty),
-                                                      AlignOf<Ty>::Alignment));
-        MFInfo = new (Loc) Ty(*this);
-    }
+    if (!MFInfo)
+      MFInfo = new (Allocator.Allocate<Ty>()) Ty(*this);
     return static_cast<Ty*>(MFInfo);
   }
 
@@ -404,7 +407,7 @@ public:
   MachineMemOperand *getMachineMemOperand(MachinePointerInfo PtrInfo,
                                           unsigned f, uint64_t s,
                                           unsigned base_alignment,
-                                          const MDNode *TBAAInfo = nullptr,
+                                          const AAMDNodes &AAInfo = AAMDNodes(),
                                           const MDNode *Ranges = nullptr);
   
   /// getMachineMemOperand - Allocate a new MachineMemOperand by copying