Point people to ConstantExpr and ConstantFolding,

in case they get the wrong idea.  Fit in 80 columns.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54676 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan Sands 2008-08-12 09:43:15 +00:00
parent 721e59cfb2
commit 20df07ba22
2 changed files with 14 additions and 8 deletions

View File

@ -7,8 +7,10 @@
// //
//===----------------------------------------------------------------------===// //===----------------------------------------------------------------------===//
// //
// This file defines the ConstantFolder class, which provides a set of methods // This file defines the ConstantFolder class, a helper for IRBuilder.
// for creating constants, with minimal folding. // It provides IRBuilder with a set of methods for creating constants
// with minimal folding. For general constant creation and folding,
// use ConstantExpr and the routines in llvm/Analysis/ConstantFolding.h.
// //
//===----------------------------------------------------------------------===// //===----------------------------------------------------------------------===//

View File

@ -7,9 +7,10 @@
// //
//===----------------------------------------------------------------------===// //===----------------------------------------------------------------------===//
// //
// This file defines the TargetFolder class, which provides a set of methods // This file defines the TargetFolder class, a helper for IRBuilder.
// for creating constants, with target dependent folding. // It provides IRBuilder with a set of methods for creating constants with
// // target dependent folding. For general constant creation and folding,
// use ConstantExpr and the routines in llvm/Analysis/ConstantFolding.h.
// //
//===----------------------------------------------------------------------===// //===----------------------------------------------------------------------===//
@ -153,7 +154,8 @@ public:
// Compare Instructions // Compare Instructions
//===--------------------------------------------------------------------===// //===--------------------------------------------------------------------===//
Constant *CreateCompare(CmpInst::Predicate P, Constant *LHS, Constant *RHS) const { Constant *CreateCompare(CmpInst::Predicate P, Constant *LHS,
Constant *RHS) const {
return Fold(ConstantExpr::getCompare(P, LHS, RHS)); return Fold(ConstantExpr::getCompare(P, LHS, RHS));
} }
@ -169,11 +171,13 @@ public:
return Fold(ConstantExpr::getExtractElement(Vec, Idx)); return Fold(ConstantExpr::getExtractElement(Vec, Idx));
} }
Constant *CreateInsertElement(Constant *Vec, Constant *NewElt, Constant *Idx)const { Constant *CreateInsertElement(Constant *Vec, Constant *NewElt,
Constant *Idx) const {
return Fold(ConstantExpr::getInsertElement(Vec, NewElt, Idx)); return Fold(ConstantExpr::getInsertElement(Vec, NewElt, Idx));
} }
Constant *CreateShuffleVector(Constant *V1, Constant *V2, Constant *Mask) const { Constant *CreateShuffleVector(Constant *V1, Constant *V2,
Constant *Mask) const {
return Fold(ConstantExpr::getShuffleVector(V1, V2, Mask)); return Fold(ConstantExpr::getShuffleVector(V1, V2, Mask));
} }