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Hoist hasLoadFromStackSlot and hasStoreToStackSlot.

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These the methods are target-independent since they simply scan the
memory operands.  They can live in TargetInstrInfoImpl.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137063 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen
2011-08-08 20:53:24 +00:00
parent 6d74631062
commit 2df3f58a0b
4 changed files with 42 additions and 57 deletions
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36
lib/CodeGen/TargetInstrInfoImpl.cpp
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@ -160,6 +160,42 @@ bool TargetInstrInfoImpl::PredicateInstruction(MachineInstr *MI,
return MadeChange;
}
bool TargetInstrInfoImpl::hasLoadFromStackSlot(const MachineInstr *MI,
const MachineMemOperand *&MMO,
int &FrameIndex) const {
for (MachineInstr::mmo_iterator o = MI->memoperands_begin(),
oe = MI->memoperands_end();
o != oe;
++o) {
if ((*o)->isLoad() && (*o)->getValue())
if (const FixedStackPseudoSourceValue *Value =
dyn_cast<const FixedStackPseudoSourceValue>((*o)->getValue())) {
FrameIndex = Value->getFrameIndex();
MMO = *o;
return true;
}
}
return false;
}
bool TargetInstrInfoImpl::hasStoreToStackSlot(const MachineInstr *MI,
const MachineMemOperand *&MMO,
int &FrameIndex) const {
for (MachineInstr::mmo_iterator o = MI->memoperands_begin(),
oe = MI->memoperands_end();
o != oe;
++o) {
if ((*o)->isStore() && (*o)->getValue())
if (const FixedStackPseudoSourceValue *Value =
dyn_cast<const FixedStackPseudoSourceValue>((*o)->getValue())) {
FrameIndex = Value->getFrameIndex();
MMO = *o;
return true;
}
}
return false;
}
void TargetInstrInfoImpl::reMaterialize(MachineBasicBlock &MBB,
MachineBasicBlock::iterator I,
unsigned DestReg,