don't emit constant pools twice.

[oota-llvm.git] / lib / Target / MSP430 / MSP430InstrInfo.h

diff --git a/lib/Target/MSP430/MSP430InstrInfo.h b/lib/Target/MSP430/MSP430InstrInfo.h
index 0803e2d77cd22e5efea048465952daacdd8fa557..6ef4b0a28a20703c120214d43bae0afd456ca3f9 100644 (file)
--- a/lib/Target/MSP430/MSP430InstrInfo.h
+++ b/lib/Target/MSP430/MSP430InstrInfo.h
@@ -21,18 +21,19 @@ namespace llvm {
 
 class MSP430TargetMachine;
 
-namespace MSP430 {
-  // MSP430 specific condition code. These correspond to MSP430_*_COND in
-  // MSP430InstrInfo.td. They must be kept in synch.
-  enum CondCode {
-    COND_E  = 0,  // aka COND_Z
-    COND_NE = 1,  // aka COND_NZ
-    COND_HS = 2,  // aka COND_C
-    COND_LO = 3,  // aka COND_NC
-    COND_GE = 4,
-    COND_L  = 5,
-
-    COND_INVALID
+/// MSP430II - This namespace holds all of the target specific flags that
+/// instruction info tracks.
+///
+namespace MSP430II {
+  enum {
+    SizeShift   = 2,
+    SizeMask    = 7 << SizeShift,
+
+    SizeUnknown = 0 << SizeShift,
+    SizeSpecial = 1 << SizeShift,
+    Size2Bytes  = 2 << SizeShift,
+    Size4Bytes  = 3 << SizeShift,
+    Size6Bytes  = 4 << SizeShift
   };
 }
 
@@ -74,6 +75,21 @@ public:
                                            MachineBasicBlock::iterator MI,
                                  const std::vector<CalleeSavedInfo> &CSI) const;
 
+  unsigned GetInstSizeInBytes(const MachineInstr *MI) const;
+
+  // Branch folding goodness
+  bool ReverseBranchCondition(SmallVectorImpl<MachineOperand> &Cond) const;
+  bool isUnpredicatedTerminator(const MachineInstr *MI) const;
+  bool AnalyzeBranch(MachineBasicBlock &MBB,
+                     MachineBasicBlock *&TBB, MachineBasicBlock *&FBB,
+                     SmallVectorImpl<MachineOperand> &Cond,
+                     bool AllowModify) const;
+
+  unsigned RemoveBranch(MachineBasicBlock &MBB) const;
+  unsigned InsertBranch(MachineBasicBlock &MBB, MachineBasicBlock *TBB,
+                        MachineBasicBlock *FBB,
+                        const SmallVectorImpl<MachineOperand> &Cond) const;
+
 };
 
 }