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Remove PHINode::reserveOperandSpace(). Instead, add a parameter to

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PHINode::Create() giving the (known or expected) number of operands.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128537 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jay Foad
2011-03-30 11:28:46 +00:00
parent d8b4fb4aab
commit 3ecfc861b4
42 changed files with 91 additions and 125 deletions
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32
include/llvm/Instructions.h
View File

@@ -1811,39 +1811,35 @@ class PHINode : public Instruction {
void *operator new(size_t s) {
return User::operator new(s, 0);
}
explicit PHINode(const Type *Ty, const Twine &NameStr = "",
Instruction *InsertBefore = 0)
explicit PHINode(const Type *Ty, unsigned NumReservedValues,
const Twine &NameStr = "", Instruction *InsertBefore = 0)
: Instruction(Ty, Instruction::PHI, 0, 0, InsertBefore),
ReservedSpace(0) {
ReservedSpace(NumReservedValues * 2) {
setName(NameStr);
OperandList = allocHungoffUses(ReservedSpace);
}
PHINode(const Type *Ty, const Twine &NameStr, BasicBlock *InsertAtEnd)
PHINode(const Type *Ty, unsigned NumReservedValues, const Twine &NameStr,
BasicBlock *InsertAtEnd)
: Instruction(Ty, Instruction::PHI, 0, 0, InsertAtEnd),
ReservedSpace(0) {
ReservedSpace(NumReservedValues * 2) {
setName(NameStr);
OperandList = allocHungoffUses(ReservedSpace);
}
protected:
virtual PHINode *clone_impl() const;
public:
static PHINode *Create(const Type *Ty, const Twine &NameStr = "",
static PHINode *Create(const Type *Ty, unsigned NumReservedValues,
const Twine &NameStr = "",
Instruction *InsertBefore = 0) {
return new PHINode(Ty, NameStr, InsertBefore);
return new PHINode(Ty, NumReservedValues, NameStr, InsertBefore);
}
static PHINode *Create(const Type *Ty, const Twine &NameStr,
BasicBlock *InsertAtEnd) {
return new PHINode(Ty, NameStr, InsertAtEnd);
static PHINode *Create(const Type *Ty, unsigned NumReservedValues,
const Twine &NameStr, BasicBlock *InsertAtEnd) {
return new PHINode(Ty, NumReservedValues, NameStr, InsertAtEnd);
}
~PHINode();
/// reserveOperandSpace - This method can be used to avoid repeated
/// reallocation of PHI operand lists by reserving space for the correct
/// number of operands before adding them. Unlike normal vector reserves,
/// this method can also be used to trim the operand space.
void reserveOperandSpace(unsigned NumValues) {
resizeOperands(NumValues*2);
}
/// Provide fast operand accessors
DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Value);

5
include/llvm/Support/IRBuilder.h
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@@ -1070,8 +1070,9 @@ public:
// Instruction creation methods: Other Instructions
//===--------------------------------------------------------------------===//
PHINode *CreatePHI(const Type *Ty, const Twine &Name = "") {
return Insert(PHINode::Create(Ty), Name);
PHINode *CreatePHI(const Type *Ty, unsigned NumReservedValues,
const Twine &Name = "") {
return Insert(PHINode::Create(Ty, NumReservedValues), Name);
}
CallInst *CreateCall(Value *Callee, const Twine &Name = "") {