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Change ConstantFoldConstantExpression to accept a null 

TargetData pointer. The only thing it's used for are
calls to ConstantFoldCompareInstOperands and
ConstantFoldInstOperands, which both already accept a
null TargetData pointer. This makes
ConstantFoldConstantExpression easier to use in clients
where TargetData is optional.

llvm-svn: 72741
This commit is contained in:
Dan Gohman 2009-06-02 21:48:15 +00:00
parent d52dddf022
commit 136bd719f0
2 changed files with 1 additions and 3 deletions
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2
llvm/include/llvm/Analysis/ConstantFolding.h
View File

@ -34,7 +34,7 @@ Constant *ConstantFoldInstruction(Instruction *I, const TargetData *TD = 0);
/// using the specified TargetData. If successful, the constant result is
/// result is returned, if not, null is returned.
Constant *ConstantFoldConstantExpression(ConstantExpr *CE,
const TargetData *TD);
const TargetData *TD = 0);
/// ConstantFoldInstOperands - Attempt to constant fold an instruction with the
/// specified operands. If successful, the constant result is returned, if not,

2
llvm/lib/Analysis/ConstantFolding.cpp
View File

@ -317,8 +317,6 @@ Constant *llvm::ConstantFoldInstruction(Instruction *I, const TargetData *TD) {
/// result is returned, if not, null is returned.
Constant *llvm::ConstantFoldConstantExpression(ConstantExpr *CE,
const TargetData *TD) {
assert(TD && "ConstantFoldConstantExpression requires a valid TargetData.");
SmallVector<Constant*, 8> Ops;
for (User::op_iterator i = CE->op_begin(), e = CE->op_end(); i != e; ++i)
Ops.push_back(cast<Constant>(*i));