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Add const to CanBeFoldedBy, CheckAndMask, and CheckOrMask. 

llvm-svn: 40480
This commit is contained in:
Dan Gohman 2007-07-24 23:00:27 +00:00
parent 5a629d4cee
commit f0bb12848f
3 changed files with 11 additions and 7 deletions
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10
llvm/include/llvm/CodeGen/SelectionDAGISel.h
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@ -74,7 +74,9 @@ public:
/// CanBeFoldedBy - Returns true if the specific operand node N of U can be
/// folded during instruction selection that starts at Root?
virtual bool CanBeFoldedBy(SDNode *N, SDNode *U, SDNode *Root) { return true;}
virtual bool CanBeFoldedBy(SDNode *N, SDNode *U, SDNode *Root) const {
return true;
}
/// CreateTargetHazardRecognizer - Return a newly allocated hazard recognizer
/// to use for this target when scheduling the DAG.
@ -164,8 +166,10 @@ protected:
SelectionDAG &DAG);
// Calls to these predicates are generated by tblgen.
bool CheckAndMask(SDOperand LHS, ConstantSDNode *RHS, int64_t DesiredMaskS);
bool CheckOrMask(SDOperand LHS, ConstantSDNode *RHS, int64_t DesiredMaskS);
bool CheckAndMask(SDOperand LHS, ConstantSDNode *RHS,
int64_t DesiredMaskS) const;
bool CheckOrMask(SDOperand LHS, ConstantSDNode *RHS,
int64_t DesiredMaskS) const;
private:
void SelectBasicBlock(BasicBlock *BB, MachineFunction &MF,

4
llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
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@ -4799,7 +4799,7 @@ HazardRecognizer *SelectionDAGISel::CreateTargetHazardRecognizer() {
/// actual value in the DAG on the RHS of an AND, and DesiredMaskS is the value
/// specified in the .td file (e.g. 255).
bool SelectionDAGISel::CheckAndMask(SDOperand LHS, ConstantSDNode *RHS,
int64_t DesiredMaskS) {
int64_t DesiredMaskS) const {
uint64_t ActualMask = RHS->getValue();
uint64_t DesiredMask =DesiredMaskS & MVT::getIntVTBitMask(LHS.getValueType());
@ -4828,7 +4828,7 @@ bool SelectionDAGISel::CheckAndMask(SDOperand LHS, ConstantSDNode *RHS,
/// actual value in the DAG on the RHS of an OR, and DesiredMaskS is the value
/// specified in the .td file (e.g. 255).
bool SelectionDAGISel::CheckOrMask(SDOperand LHS, ConstantSDNode *RHS,
int64_t DesiredMaskS) {
int64_t DesiredMaskS) const {
uint64_t ActualMask = RHS->getValue();
uint64_t DesiredMask =DesiredMaskS & MVT::getIntVTBitMask(LHS.getValueType());

4
llvm/lib/Target/X86/X86ISelDAGToDAG.cpp
View File

@ -132,7 +132,7 @@ namespace {
virtual void EmitFunctionEntryCode(Function &Fn, MachineFunction &MF);
virtual bool CanBeFoldedBy(SDNode *N, SDNode *U, SDNode *Root);
virtual bool CanBeFoldedBy(SDNode *N, SDNode *U, SDNode *Root) const;
// Include the pieces autogenerated from the target description.
#include "X86GenDAGISel.inc"
@ -272,7 +272,7 @@ static inline bool isNonImmUse(SDNode *Root, SDNode *Def, SDNode *ImmedUse,
}
bool X86DAGToDAGISel::CanBeFoldedBy(SDNode *N, SDNode *U, SDNode *Root) {
bool X86DAGToDAGISel::CanBeFoldedBy(SDNode *N, SDNode *U, SDNode *Root) const {
if (FastISel) return false;
// If U use can somehow reach N through another path then U can't fold N or