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Change constant folding APIs to take an optional TargetData, and change

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ConstantFoldInstOperands/ConstantFoldCall to take a pointer to an array
of operands + size, instead of an std::vector.

llvm-svn: 33669
This commit is contained in:
Chris Lattner 2007-01-30 23:12:47 +00:00
parent b671880197
commit 59ba02e557
2 changed files with 8 additions and 11 deletions
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10
include/llvm/Analysis/ConstantFolding.h
View File

@ -20,17 +20,11 @@ namespace llvm {
/// canConstantFoldCallTo - Return true if its even possible to fold a call to
/// the specified function.
extern
bool canConstantFoldCallTo(Function *F);
/// ConstantFoldFP - Given a function that evaluates the constant, return an
/// LLVM Constant that represents the evaluated constant
extern Constant *
ConstantFoldFP(double (*NativeFP)(double), double V, const Type *Ty);
/// ConstantFoldCall - Attempt to constant fold a call to the specified function
/// with the specified arguments, returning null if unsuccessful.
extern Constant *
ConstantFoldCall(Function *F, const std::vector<Constant*> &Operands);
Constant *
ConstantFoldCall(Function *F, Constant** Operands, unsigned NumOperands);
}

9
include/llvm/Transforms/Utils/Local.h
View File

@ -24,6 +24,7 @@ class Pass;
class PHINode;
class AllocaInst;
class ConstantExpr;
class TargetData;
//===----------------------------------------------------------------------===//
// Local constant propagation...
@ -32,7 +33,7 @@ class ConstantExpr;
/// doConstantPropagation - Constant prop a specific instruction. Returns true
/// and potentially moves the iterator if constant propagation was performed.
///
bool doConstantPropagation(BasicBlock::iterator &I);
bool doConstantPropagation(BasicBlock::iterator &I, const TargetData *TD = 0);
/// ConstantFoldTerminator - If a terminator instruction is predicated on a
/// constant value, convert it into an unconditional branch to the constant
@ -46,7 +47,7 @@ bool ConstantFoldTerminator(BasicBlock *BB);
/// is returned. Note that this function can only fail when attempting to fold
/// instructions like loads and stores, which have no constant expression form.
///
Constant *ConstantFoldInstruction(Instruction *I);
Constant *ConstantFoldInstruction(Instruction *I, const TargetData *TD = 0);
/// ConstantFoldInstOperands - Attempt to constant fold an instruction with the
/// specified operands. If successful, the constant result is returned, if not,
@ -56,7 +57,9 @@ Constant *ConstantFoldInstruction(Instruction *I);
///
Constant *ConstantFoldInstOperands(
const Instruction *I, ///< The model instruction
const std::vector<Constant*> &Ops ///< The constant operands to use.
Constant** Ops, ///< The array of constant operands to use.
unsigned NumOps, ///< The number of operands provided.
const TargetData *TD = 0 ///< Optional target information.
);