[Hexagon] Replace a static member variable in HexagonCVIResource (NFC)

[oota-llvm.git] / lib / Target / Hexagon / MCTargetDesc / HexagonShuffler.h

diff --git a/lib/Target/Hexagon/MCTargetDesc/HexagonShuffler.h b/lib/Target/Hexagon/MCTargetDesc/HexagonShuffler.h
index 949ad8cebdcd7be4f665df151b79ad74f771246f..a093f85451323f228f0fbcc772e90e4efabc87f1 100644 (file)
--- a/lib/Target/Hexagon/MCTargetDesc/HexagonShuffler.h
+++ b/lib/Target/Hexagon/MCTargetDesc/HexagonShuffler.h
@@ -20,6 +20,7 @@
 
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/MC/MCInstrInfo.h"
+#include "llvm/MC/MCSubtargetInfo.h"
 
 using namespace llvm;
 
@@ -35,7 +36,6 @@ public:
 
   void setUnits(unsigned s) {
     Slots = s & ~(~0U << HEXAGON_PACKET_SIZE);
-    setWeight(s);
   };
   unsigned setWeight(unsigned s);
 
@@ -52,6 +52,46 @@ public:
   };
 };
 
+// HVX insn resources.
+class HexagonCVIResource : public HexagonResource {
+public:
+  typedef std::pair<unsigned, unsigned> UnitsAndLanes;
+  typedef llvm::DenseMap<unsigned, UnitsAndLanes> TypeUnitsAndLanes;
+
+private:
+  // Available HVX slots.
+  enum {
+    CVI_NONE = 0,
+    CVI_XLANE = 1 << 0,
+    CVI_SHIFT = 1 << 1,
+    CVI_MPY0 = 1 << 2,
+    CVI_MPY1 = 1 << 3
+  };
+
+  TypeUnitsAndLanes *TUL;
+
+  // Count of adjacent slots that the insn requires to be executed.
+  unsigned Lanes;
+  // Flag whether the insn is a load or a store.
+  bool Load, Store;
+  // Flag whether the HVX resources are valid.
+  bool Valid;
+
+  void setLanes(unsigned l) { Lanes = l; };
+  void setLoad(bool f = true) { Load = f; };
+  void setStore(bool f = true) { Store = f; };
+
+public:
+  HexagonCVIResource(TypeUnitsAndLanes *TUL, MCInstrInfo const &MCII,
+                     unsigned s, MCInst const *id);
+  static void SetupTUL(TypeUnitsAndLanes *TUL, StringRef CPU);
+
+  bool isValid() const { return (Valid); };
+  unsigned getLanes() const { return (Lanes); };
+  bool mayLoad() const { return (Load); };
+  bool mayStore() const { return (Store); };
+};
+
 // Handle to an insn used by the shuffling algorithm.
 class HexagonInstr {
   friend class HexagonShuffler;
@@ -59,12 +99,15 @@ class HexagonInstr {
   MCInst const *ID;
   MCInst const *Extender;
   HexagonResource Core;
+  HexagonCVIResource CVI;
   bool SoloException;
 
 public:
-  HexagonInstr(MCInst const *id, MCInst const *Extender, unsigned s,
-               bool x = false)
-      : ID(id), Extender(Extender), Core(s), SoloException(x){};
+  HexagonInstr(HexagonCVIResource::TypeUnitsAndLanes *T,
+               MCInstrInfo const &MCII, MCInst const *id,
+               MCInst const *Extender, unsigned s, bool x = false)
+      : ID(id), Extender(Extender), Core(s), CVI(T, MCII, s, id),
+        SoloException(x) {};
 
   MCInst const *getDesc() const { return (ID); };
 
@@ -80,6 +123,10 @@ public:
   static bool lessCore(const HexagonInstr &A, const HexagonInstr &B) {
     return (HexagonResource::lessUnits(A.Core, B.Core));
   };
+  // Check if the handles are in ascending order by HVX slots.
+  static bool lessCVI(const HexagonInstr &A, const HexagonInstr &B) {
+    return (HexagonResource::lessUnits(A.CVI, B.CVI));
+  };
 };
 
 // Bundle shuffler.
@@ -93,6 +140,8 @@ class HexagonShuffler {
   // Shuffling error code.
   unsigned Error;
 
+  HexagonCVIResource::TypeUnitsAndLanes TUL;
+
 protected:
   int64_t BundleFlags;
   MCInstrInfo const &MCII;
@@ -109,6 +158,8 @@ public:
     SHUFFLE_ERROR_BRANCHES, ///< No free slots for branch insns.
     SHUFFLE_ERROR_NOSLOTS,  ///< No free slots for other insns.
     SHUFFLE_ERROR_SLOTS,    ///< Over-subscribed slots.
+    SHUFFLE_ERROR_ERRATA2, ///< Errata violation (v60).
+    SHUFFLE_ERROR_STORE_LOAD_CONFLICT, ///< store/load conflict
     SHUFFLE_ERROR_UNKNOWN   ///< Unknown error.
   };