Update aosp/master LLVM for rebase to r256229

[android-x86/external-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 9218fd3..174f10f 100644 (file)
--- a/lib/Target/Hexagon/MCTargetDesc/HexagonShuffler.h
+++ b/lib/Target/Hexagon/MCTargetDesc/HexagonShuffler.h
@@ -34,8 +34,7 @@ public:
   HexagonResource(unsigned s) { setUnits(s); };
 
   void setUnits(unsigned s) {
-    Slots = s & ~(-1 << HEXAGON_PACKET_SIZE);
-    setWeight(s);
+    Slots = s & ~(~0U << HEXAGON_PACKET_SIZE);
   };
   unsigned setWeight(unsigned s);
 
@@ -52,6 +51,44 @@ public:
   };
 };
 
+// HVX insn resources.
+class HexagonCVIResource : public HexagonResource {
+  typedef std::pair<unsigned, unsigned> UnitsAndLanes;
+  typedef llvm::DenseMap<unsigned, UnitsAndLanes> TypeUnitsAndLanes;
+
+  // Available HVX slots.
+  enum {
+    CVI_NONE = 0,
+    CVI_XLANE = 1 << 0,
+    CVI_SHIFT = 1 << 1,
+    CVI_MPY0 = 1 << 2,
+    CVI_MPY1 = 1 << 3
+  };
+
+  static bool SetUp;
+  static bool setup();
+  static 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(MCInstrInfo const &MCII, unsigned s, MCInst const *id);
+
+  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 +96,14 @@ 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(MCInstrInfo const &MCII, MCInst const *id,
+               MCInst const *Extender, unsigned s, bool x = false)
+      : ID(id), Extender(Extender), Core(s), CVI(MCII, s, id),
+        SoloException(x){};
 
   MCInst const *getDesc() const { return (ID); };
 
@@ -80,6 +119,10 @@ 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.
@@ -109,6 +152,8 @@ 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.
   };