Re-reapply "[IR] Move optional data in llvm::Function into a hungoff uselist"

[oota-llvm.git] / include / llvm / IR / Operator.h

diff --git a/include/llvm/IR/Operator.h b/include/llvm/IR/Operator.h
index 8c3afdd86aed362671a6c65760d9c6ecb73cc52d..372b254ab1839012ece5d9c9d8c42b7f388f71cd 100644 (file)
--- a/include/llvm/IR/Operator.h
+++ b/include/llvm/IR/Operator.h
@@ -18,7 +18,6 @@
 #include "llvm/IR/Constants.h"
 #include "llvm/IR/DataLayout.h"
 #include "llvm/IR/DerivedTypes.h"
-#include "llvm/IR/GetElementPtrTypeIterator.h"
 #include "llvm/IR/Instruction.h"
 #include "llvm/IR/Type.h"
 
@@ -306,7 +305,8 @@ public:
   float getFPAccuracy() const;
 
   static inline bool classof(const Instruction *I) {
-    return I->getType()->isFPOrFPVectorTy();
+    return I->getType()->isFPOrFPVectorTy() ||
+      I->getOpcode() == Instruction::FCmp;
   }
   static inline bool classof(const Value *V) {
     return isa<Instruction>(V) && classof(cast<Instruction>(V));
@@ -400,10 +400,7 @@ public:
     return getPointerOperand()->getType();
   }
 
-  Type *getSourceElementType() const {
-    return cast<SequentialType>(getPointerOperandType()->getScalarType())
-        ->getElementType();
-  }
+  Type *getSourceElementType() const;
 
   /// Method to return the address space of the pointer operand.
   unsigned getPointerAddressSpace() const {
@@ -450,36 +447,7 @@ public:
   /// undefined (it is *not* preserved!). The APInt passed into this routine
   /// must be at exactly as wide as the IntPtr type for the address space of the
   /// base GEP pointer.
-  bool accumulateConstantOffset(const DataLayout &DL, APInt &Offset) const {
-    assert(Offset.getBitWidth() ==
-           DL.getPointerSizeInBits(getPointerAddressSpace()) &&
-           "The offset must have exactly as many bits as our pointer.");
-
-    for (gep_type_iterator GTI = gep_type_begin(this), GTE = gep_type_end(this);
-         GTI != GTE; ++GTI) {
-      ConstantInt *OpC = dyn_cast<ConstantInt>(GTI.getOperand());
-      if (!OpC)
-        return false;
-      if (OpC->isZero())
-        continue;
-
-      // Handle a struct index, which adds its field offset to the pointer.
-      if (StructType *STy = dyn_cast<StructType>(*GTI)) {
-        unsigned ElementIdx = OpC->getZExtValue();
-        const StructLayout *SL = DL.getStructLayout(STy);
-        Offset += APInt(Offset.getBitWidth(),
-                        SL->getElementOffset(ElementIdx));
-        continue;
-      }
-
-      // For array or vector indices, scale the index by the size of the type.
-      APInt Index = OpC->getValue().sextOrTrunc(Offset.getBitWidth());
-      Offset += Index * APInt(Offset.getBitWidth(),
-                              DL.getTypeAllocSize(GTI.getIndexedType()));
-    }
-    return true;
-  }
-
+  bool accumulateConstantOffset(const DataLayout &DL, APInt &Offset) const;
 };
 
 class PtrToIntOperator