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Add helper methods for forming shift operations with a constant 

shift amount.

llvm-svn: 90694
This commit is contained in:
Chris Lattner 2009-12-06 01:56:22 +00:00
parent 287a2bfc03
commit d15e11ad98
1 changed files with 21 additions and 0 deletions
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21
llvm/include/llvm/Support/IRBuilder.h
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@ -407,18 +407,39 @@ public:
return Folder.CreateShl(LC, RC);
return Insert(BinaryOperator::CreateShl(LHS, RHS), Name);
}
Value *CreateShl(Value *LHS, uint64_t RHS, const Twine &Name = "") {
Constant *RHSC = ConstantInt::get(LHS->getType(), RHS);
if (Constant *LC = dyn_cast<Constant>(LHS))
return Folder.CreateShl(LC, RHSC);
return Insert(BinaryOperator::CreateShl(LHS, RHSC), Name);
}
Value *CreateLShr(Value *LHS, Value *RHS, const Twine &Name = "") {
if (Constant *LC = dyn_cast<Constant>(LHS))
if (Constant *RC = dyn_cast<Constant>(RHS))
return Folder.CreateLShr(LC, RC);
return Insert(BinaryOperator::CreateLShr(LHS, RHS), Name);
}
Value *CreateLShr(Value *LHS, uint64_t RHS, const Twine &Name = "") {
Constant *RHSC = ConstantInt::get(LHS->getType(), RHS);
if (Constant *LC = dyn_cast<Constant>(LHS))
return Folder.CreateLShr(LC, RHSC);
return Insert(BinaryOperator::CreateLShr(LHS, RHSC), Name);
}
Value *CreateAShr(Value *LHS, Value *RHS, const Twine &Name = "") {
if (Constant *LC = dyn_cast<Constant>(LHS))
if (Constant *RC = dyn_cast<Constant>(RHS))
return Folder.CreateAShr(LC, RC);
return Insert(BinaryOperator::CreateAShr(LHS, RHS), Name);
}
Value *CreateAShr(Value *LHS, uint64_t RHS, const Twine &Name = "") {
Constant *RHSC = ConstantInt::get(LHS->getType(), RHS);
if (Constant *LC = dyn_cast<Constant>(LHS))
return Folder.CreateSShr(LC, RHSC);
return Insert(BinaryOperator::CreateAShr(LHS, RHSC), Name);
}
Value *CreateAnd(Value *LHS, Value *RHS, const Twine &Name = "") {
if (Constant *RC = dyn_cast<Constant>(RHS)) {
if (isa<ConstantInt>(RC) && cast<ConstantInt>(RC)->isAllOnesValue())