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Add convenience functions for creating inbounds GEPs.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78695 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman
2009-08-11 17:57:01 +00:00
parent 7cd0118c36
commit e2574d3215
7 changed files with 164 additions and 6 deletions
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74
include/llvm/Support/IRBuilder.h
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@ -362,21 +362,43 @@ public:
if (Constant *PC = dyn_cast<Constant>(Ptr)) {
// Every index must be constant.
InputIterator i;
for (i = IdxBegin; i < IdxEnd; ++i) {
for (i = IdxBegin; i < IdxEnd; ++i)
if (!isa<Constant>(*i))
break;
}
if (i == IdxEnd)
return Folder.CreateGetElementPtr(PC, &IdxBegin[0], IdxEnd - IdxBegin);
}
return Insert(GetElementPtrInst::Create(Ptr, IdxBegin, IdxEnd), Name);
}
template<typename InputIterator>
Value *CreateInBoundsGEP(Value *Ptr, InputIterator IdxBegin, InputIterator IdxEnd,
const char *Name = "") {
if (Constant *PC = dyn_cast<Constant>(Ptr)) {
// Every index must be constant.
InputIterator i;
for (i = IdxBegin; i < IdxEnd; ++i)
if (!isa<Constant>(*i))
break;
if (i == IdxEnd)
return Folder.CreateInBoundsGetElementPtr(PC,
&IdxBegin[0],
IdxEnd - IdxBegin);
}
return Insert(GetElementPtrInst::CreateInBounds(Ptr, IdxBegin, IdxEnd),
Name);
}
Value *CreateGEP(Value *Ptr, Value *Idx, const char *Name = "") {
if (Constant *PC = dyn_cast<Constant>(Ptr))
if (Constant *IC = dyn_cast<Constant>(Idx))
return Folder.CreateGetElementPtr(PC, &IC, 1);
return Insert(GetElementPtrInst::Create(Ptr, Idx), Name);
}
Value *CreateInBoundsGEP(Value *Ptr, Value *Idx, const char *Name = "") {
if (Constant *PC = dyn_cast<Constant>(Ptr))
if (Constant *IC = dyn_cast<Constant>(Idx))
return Folder.CreateInBoundsGetElementPtr(PC, &IC, 1);
return Insert(GetElementPtrInst::CreateInBounds(Ptr, Idx), Name);
}
Value *CreateConstGEP1_32(Value *Ptr, unsigned Idx0, const char *Name = "") {
Value *Idx = ConstantInt::get(Type::Int32Ty, Idx0);
@ -385,6 +407,15 @@ public:
return Insert(GetElementPtrInst::Create(Ptr, &Idx, &Idx+1), Name);
}
Value *CreateConstInBoundsGEP1_32(Value *Ptr, unsigned Idx0,
const char *Name = "") {
Value *Idx = ConstantInt::get(Type::Int32Ty, Idx0);
if (Constant *PC = dyn_cast<Constant>(Ptr))
return Folder.CreateInBoundsGetElementPtr(PC, &Idx, 1);
return Insert(GetElementPtrInst::CreateInBounds(Ptr, &Idx, &Idx+1), Name);
}
Value *CreateConstGEP2_32(Value *Ptr, unsigned Idx0, unsigned Idx1,
const char *Name = "") {
Value *Idxs[] = {
@ -397,6 +428,18 @@ public:
return Insert(GetElementPtrInst::Create(Ptr, Idxs, Idxs+2), Name);
}
Value *CreateConstInBoundsGEP2_32(Value *Ptr, unsigned Idx0, unsigned Idx1,
const char *Name = "") {
Value *Idxs[] = {
ConstantInt::get(Type::Int32Ty, Idx0),
ConstantInt::get(Type::Int32Ty, Idx1)
};
if (Constant *PC = dyn_cast<Constant>(Ptr))
return Folder.CreateInBoundsGetElementPtr(PC, Idxs, 2);
return Insert(GetElementPtrInst::CreateInBounds(Ptr, Idxs, Idxs+2), Name);
}
Value *CreateConstGEP1_64(Value *Ptr, uint64_t Idx0, const char *Name = "") {
Value *Idx = ConstantInt::get(Type::Int64Ty, Idx0);
@ -405,7 +448,16 @@ public:
return Insert(GetElementPtrInst::Create(Ptr, &Idx, &Idx+1), Name);
}
Value *CreateConstGEP2_64(Value *Ptr, uint64_t Idx0, uint64_t Idx1,
Value *CreateConstInBoundsGEP1_64(Value *Ptr, uint64_t Idx0,
const char *Name = "") {
Value *Idx = ConstantInt::get(Type::Int64Ty, Idx0);
if (Constant *PC = dyn_cast<Constant>(Ptr))
return Folder.CreateInBoundsGetElementPtr(PC, &Idx, 1);
return Insert(GetElementPtrInst::CreateInBounds(Ptr, &Idx, &Idx+1), Name);
}
Value *CreateConstGEP2_64(Value *Ptr, uint64_t Idx0, uint64_t Idx1,
const char *Name = "") {
Value *Idxs[] = {
ConstantInt::get(Type::Int64Ty, Idx0),
@ -417,8 +469,20 @@ public:
return Insert(GetElementPtrInst::Create(Ptr, Idxs, Idxs+2), Name);
}
Value *CreateConstInBoundsGEP2_64(Value *Ptr, uint64_t Idx0, uint64_t Idx1,
const char *Name = "") {
Value *Idxs[] = {
ConstantInt::get(Type::Int64Ty, Idx0),
ConstantInt::get(Type::Int64Ty, Idx1)
};
if (Constant *PC = dyn_cast<Constant>(Ptr))
return Folder.CreateInBoundsGetElementPtr(PC, Idxs, 2);
return Insert(GetElementPtrInst::CreateInBounds(Ptr, Idxs, Idxs+2), Name);
}
Value *CreateStructGEP(Value *Ptr, unsigned Idx, const char *Name = "") {
return CreateConstGEP2_32(Ptr, 0, Idx, Name);
return CreateConstInBoundsGEP2_32(Ptr, 0, Idx, Name);
}
Value *CreateGlobalString(const char *Str = "", const char *Name = "") {
Constant *StrConstant = ConstantArray::get(Str, true);
@ -438,7 +502,7 @@ public:
Value *gv = CreateGlobalString(Str, Name);
Value *zero = ConstantInt::get(Type::Int32Ty, 0);
Value *Args[] = { zero, zero };
return CreateGEP(gv, Args, Args+2, Name);
return CreateInBoundsGEP(gv, Args, Args+2, Name);
}
//===--------------------------------------------------------------------===//
// Instruction creation methods: Cast/Conversion Operators