diff options
Diffstat (limited to 'include/llvm/Analysis/ConstantFolding.h')
| -rw-r--r-- | include/llvm/Analysis/ConstantFolding.h | 26 |
1 files changed, 19 insertions, 7 deletions
diff --git a/include/llvm/Analysis/ConstantFolding.h b/include/llvm/Analysis/ConstantFolding.h index 05018fa..2fdef5f 100644 --- a/include/llvm/Analysis/ConstantFolding.h +++ b/include/llvm/Analysis/ConstantFolding.h @@ -25,6 +25,7 @@ namespace llvm { class ConstantExpr; class Instruction; class TargetData; + class TargetLibraryInfo; class Function; class Type; template<typename T> @@ -35,13 +36,15 @@ namespace llvm { /// Note that this fails if not all of the operands are constant. Otherwise, /// this function can only fail when attempting to fold instructions like loads /// and stores, which have no constant expression form. -Constant *ConstantFoldInstruction(Instruction *I, const TargetData *TD = 0); +Constant *ConstantFoldInstruction(Instruction *I, const TargetData *TD = 0, + const TargetLibraryInfo *TLI = 0); /// ConstantFoldConstantExpression - Attempt to fold the constant expression /// using the specified TargetData. If successful, the constant result is /// result is returned, if not, null is returned. Constant *ConstantFoldConstantExpression(const ConstantExpr *CE, - const TargetData *TD = 0); + const TargetData *TD = 0, + const TargetLibraryInfo *TLI = 0); /// ConstantFoldInstOperands - Attempt to constant fold an instruction with the /// specified operands. If successful, the constant result is returned, if not, @@ -51,7 +54,8 @@ Constant *ConstantFoldConstantExpression(const ConstantExpr *CE, /// Constant *ConstantFoldInstOperands(unsigned Opcode, Type *DestTy, ArrayRef<Constant *> Ops, - const TargetData *TD = 0); + const TargetData *TD = 0, + const TargetLibraryInfo *TLI = 0); /// ConstantFoldCompareInstOperands - Attempt to constant fold a compare /// instruction (icmp/fcmp) with the specified operands. If it fails, it @@ -59,7 +63,8 @@ Constant *ConstantFoldInstOperands(unsigned Opcode, Type *DestTy, /// Constant *ConstantFoldCompareInstOperands(unsigned Predicate, Constant *LHS, Constant *RHS, - const TargetData *TD = 0); + const TargetData *TD = 0, + const TargetLibraryInfo *TLI = 0); /// ConstantFoldInsertValueInstruction - Attempt to constant fold an insertvalue /// instruction with the specified operands and indices. The constant result is @@ -76,15 +81,22 @@ Constant *ConstantFoldLoadFromConstPtr(Constant *C, const TargetData *TD = 0); /// getelementptr constantexpr, return the constant value being addressed by the /// constant expression, or null if something is funny and we can't decide. Constant *ConstantFoldLoadThroughGEPConstantExpr(Constant *C, ConstantExpr *CE); - + +/// ConstantFoldLoadThroughGEPIndices - Given a constant and getelementptr +/// indices (with an *implied* zero pointer index that is not in the list), +/// return the constant value being addressed by a virtual load, or null if +/// something is funny and we can't decide. +Constant *ConstantFoldLoadThroughGEPIndices(Constant *C, + ArrayRef<Constant*> Indices); + /// canConstantFoldCallTo - Return true if its even possible to fold a call to /// the specified function. bool canConstantFoldCallTo(const Function *F); /// ConstantFoldCall - Attempt to constant fold a call to the specified function /// with the specified arguments, returning null if unsuccessful. -Constant * -ConstantFoldCall(Function *F, ArrayRef<Constant *> Operands); +Constant *ConstantFoldCall(Function *F, ArrayRef<Constant *> Operands, + const TargetLibraryInfo *TLI = 0); } #endif |
