X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FAnalysis%2FTargetTransformInfo.cpp;h=7ab772a1d889441e9a4e284153bc34f8633706ae;hb=c3ee775f0970d7c1a589e5880d53e0280f9cc5eb;hp=35ce794c7f12099c310e7c5614ef4baeabd331b9;hpb=06f5ebc5a1604b01689cf2d482dd05f956538af6;p=oota-llvm.git

diff --git a/lib/Analysis/TargetTransformInfo.cpp b/lib/Analysis/TargetTransformInfo.cpp
index 35ce794c7f1..7ab772a1d88 100644
--- a/lib/Analysis/TargetTransformInfo.cpp
+++ b/lib/Analysis/TargetTransformInfo.cpp
@@ -10,10 +10,10 @@
 #define DEBUG_TYPE "tti"
 #include "llvm/Analysis/TargetTransformInfo.h"
 #include "llvm/IR/DataLayout.h"
-#include "llvm/IR/Operator.h"
 #include "llvm/IR/Instruction.h"
-#include "llvm/IR/IntrinsicInst.h"
 #include "llvm/IR/Instructions.h"
+#include "llvm/IR/IntrinsicInst.h"
+#include "llvm/IR/Operator.h"
 #include "llvm/Support/CallSite.h"
 #include "llvm/Support/ErrorHandling.h"
 
@@ -88,10 +88,19 @@ unsigned TargetTransformInfo::getUserCost(const User *U) const {
   return PrevTTI->getUserCost(U);
 }
 
+bool TargetTransformInfo::hasBranchDivergence() const {
+  return PrevTTI->hasBranchDivergence();
+}
+
 bool TargetTransformInfo::isLoweredToCall(const Function *F) const {
   return PrevTTI->isLoweredToCall(F);
 }
 
+void TargetTransformInfo::getUnrollingPreferences(Loop *L,
+                            UnrollingPreferences &UP) const {
+  PrevTTI->getUnrollingPreferences(L, UP);
+}
+
 bool TargetTransformInfo::isLegalAddImmediate(int64_t Imm) const {
   return PrevTTI->isLegalAddImmediate(Imm);
 }
@@ -141,6 +150,10 @@ TargetTransformInfo::getPopcntSupport(unsigned IntTyWidthInBit) const {
   return PrevTTI->getPopcntSupport(IntTyWidthInBit);
 }
 
+bool TargetTransformInfo::haveFastSqrt(Type *Ty) const {
+  return PrevTTI->haveFastSqrt(Ty);
+}
+
 unsigned TargetTransformInfo::getIntImmCost(const APInt &Imm, Type *Ty) const {
   return PrevTTI->getIntImmCost(Imm, Ty);
 }
@@ -206,8 +219,14 @@ unsigned TargetTransformInfo::getNumberOfParts(Type *Tp) const {
   return PrevTTI->getNumberOfParts(Tp);
 }
 
-unsigned TargetTransformInfo::getAddressComputationCost(Type *Tp) const {
-  return PrevTTI->getAddressComputationCost(Tp);
+unsigned TargetTransformInfo::getAddressComputationCost(Type *Tp,
+                                                        bool IsComplex) const {
+  return PrevTTI->getAddressComputationCost(Tp, IsComplex);
+}
+
+unsigned TargetTransformInfo::getReductionCost(unsigned Opcode, Type *Ty,
+                                               bool IsPairwise) const {
+  return PrevTTI->getReductionCost(Opcode, Ty, IsPairwise);
 }
 
 namespace {
@@ -260,26 +279,34 @@ struct NoTTI : ImmutablePass, TargetTransformInfo {
       // Otherwise, the default basic cost is used.
       return TCC_Basic;
 
-    case Instruction::IntToPtr:
+    case Instruction::IntToPtr: {
+      if (!DL)
+        return TCC_Basic;
+
       // An inttoptr cast is free so long as the input is a legal integer type
       // which doesn't contain values outside the range of a pointer.
-      if (DL && DL->isLegalInteger(OpTy->getScalarSizeInBits()) &&
-          OpTy->getScalarSizeInBits() <= DL->getPointerSizeInBits())
+      unsigned OpSize = OpTy->getScalarSizeInBits();
+      if (DL->isLegalInteger(OpSize) &&
+          OpSize <= DL->getPointerTypeSizeInBits(Ty))
         return TCC_Free;
 
       // Otherwise it's not a no-op.
       return TCC_Basic;
+    }
+    case Instruction::PtrToInt: {
+      if (!DL)
+        return TCC_Basic;
 
-    case Instruction::PtrToInt:
       // A ptrtoint cast is free so long as the result is large enough to store
       // the pointer, and a legal integer type.
-      if (DL && DL->isLegalInteger(Ty->getScalarSizeInBits()) &&
-          Ty->getScalarSizeInBits() >= DL->getPointerSizeInBits())
+      unsigned DestSize = Ty->getScalarSizeInBits();
+      if (DL->isLegalInteger(DestSize) &&
+          DestSize >= DL->getPointerTypeSizeInBits(OpTy))
         return TCC_Free;
 
       // Otherwise it's not a no-op.
       return TCC_Basic;
-
+    }
     case Instruction::Trunc:
       // trunc to a native type is free (assuming the target has compare and
       // shift-right of the same width).
@@ -419,6 +446,8 @@ struct NoTTI : ImmutablePass, TargetTransformInfo {
                                 U->getOperand(0)->getType() : 0);
   }
 
+  bool hasBranchDivergence() const { return false; }
+
   bool isLoweredToCall(const Function *F) const {
     // FIXME: These should almost certainly not be handled here, and instead
     // handled with the help of TLI or the target itself. This was largely
@@ -450,6 +479,8 @@ struct NoTTI : ImmutablePass, TargetTransformInfo {
     return true;
   }
 
+  void getUnrollingPreferences(Loop *, UnrollingPreferences &) const { }
+
   bool isLegalAddImmediate(int64_t Imm) const {
     return false;
   }
@@ -498,6 +529,10 @@ struct NoTTI : ImmutablePass, TargetTransformInfo {
     return PSK_Software;
   }
 
+  bool haveFastSqrt(Type *Ty) const {
+    return false;
+  }
+
   unsigned getIntImmCost(const APInt &Imm, Type *Ty) const {
     return 1;
   }
@@ -559,9 +594,13 @@ struct NoTTI : ImmutablePass, TargetTransformInfo {
     return 0;
   }
 
-  unsigned getAddressComputationCost(Type *Tp) const {
+  unsigned getAddressComputationCost(Type *Tp, bool) const {
     return 0;
   }
+
+  unsigned getReductionCost(unsigned, Type *, bool) const {
+    return 1;
+  }
 };
 
 } // end anonymous namespace