Renaming:

isTriviallyReMaterializable -> hasNoSideEffects
  isReallyTriviallyReMaterializable -> isTriviallyReMaterializable

llvm-svn: 44702
This commit is contained in:
Bill Wendling 2007-12-08 07:17:56 +00:00
parent f47015bc74
commit 2b07d8c5a0
5 changed files with 16 additions and 16 deletions

View File

@ -288,24 +288,24 @@ public:
return get(Opcode).Flags & M_HAS_OPTIONAL_DEF;
}
/// isTriviallyReMaterializable - Return true if the instruction is trivially
/// hasNoSideEffects - Return true if the instruction is trivially
/// rematerializable, meaning it has no side effects and requires no operands
/// that aren't always available.
bool isTriviallyReMaterializable(MachineInstr *MI) const {
bool hasNoSideEffects(MachineInstr *MI) const {
return (MI->getInstrDescriptor()->Flags & M_REMATERIALIZIBLE) &&
isReallyTriviallyReMaterializable(MI);
isTriviallyReMaterializable(MI);
}
protected:
/// isReallyTriviallyReMaterializable - For instructions with opcodes for
/// which the M_REMATERIALIZABLE flag is set, this function tests whether the
/// instruction itself is actually trivially rematerializable, considering
/// its operands. This is used for targets that have instructions that are
/// only trivially rematerializable for specific uses. This predicate must
/// return false if the instruction has any side effects other than
/// producing a value, or if it requres any address registers that are not
/// always available.
virtual bool isReallyTriviallyReMaterializable(MachineInstr *MI) const {
/// isTriviallyReMaterializable - For instructions with opcodes for which the
/// M_REMATERIALIZABLE flag is set, this function tests whether the
/// instruction itself is actually trivially rematerializable, considering its
/// operands. This is used for targets that have instructions that are only
/// trivially rematerializable for specific uses. This predicate must return
/// false if the instruction has any side effects other than producing a
/// value, or if it requres any address registers that are not always
/// available.
virtual bool isTriviallyReMaterializable(MachineInstr *MI) const {
return true;
}

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@ -613,7 +613,7 @@ bool LiveIntervals::isReMaterializable(const LiveInterval &li,
return false;
isLoad = false;
if (tii_->isTriviallyReMaterializable(MI)) {
if (tii_->hasNoSideEffects(MI)) {
isLoad = MI->getInstrDescriptor()->Flags & M_LOAD_FLAG;
return true;
}

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@ -120,7 +120,7 @@ namespace {
if (TID->ImplicitUses || !I.getNumOperands()) return false;
MachineOpCode Opcode = TID->Opcode;
return TII->isTriviallyReMaterializable(&I) &&
return TII->hasNoSideEffects(&I) &&
// FIXME: Below necessary?
!(TII->isReturn(Opcode) ||
TII->isTerminatorInstr(Opcode) ||

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@ -116,7 +116,7 @@ unsigned X86InstrInfo::isStoreToStackSlot(MachineInstr *MI,
}
bool X86InstrInfo::isReallyTriviallyReMaterializable(MachineInstr *MI) const {
bool X86InstrInfo::isTriviallyReMaterializable(MachineInstr *MI) const {
switch (MI->getOpcode()) {
default: break;
case X86::MOV8rm:

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@ -239,7 +239,7 @@ public:
unsigned& destReg) const;
unsigned isLoadFromStackSlot(MachineInstr *MI, int &FrameIndex) const;
unsigned isStoreToStackSlot(MachineInstr *MI, int &FrameIndex) const;
bool isReallyTriviallyReMaterializable(MachineInstr *MI) const;
bool isTriviallyReMaterializable(MachineInstr *MI) const;
/// convertToThreeAddress - This method must be implemented by targets that
/// set the M_CONVERTIBLE_TO_3_ADDR flag. When this flag is set, the target