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Use getRegClassID() instead of getRegClass()->getID(), since it's there.

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Shorten the markSuggestedColorUsable method.
Add a switch for saving reg. alloc. state (coming soon).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8697 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Brian Gaeke 2003-09-24 17:50:28 +00:00
parent eefaeb84f1
commit 59b1c566c9
2 changed files with 30 additions and 34 deletions
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32
lib/CodeGen/RegAlloc/PhyRegAlloc.cpp
View File

@ -39,6 +39,10 @@ DRA_opt("dregalloc", cl::Hidden, cl::location(DEBUG_RA),
clEnumValN(RA_DEBUG_Verbose, "v", "extra debug output"),
0));
static cl::opt<bool>
SaveRegAllocState("save-ra-state", cl::Hidden,
cl::desc("write reg. allocator state into module"));
FunctionPass *getRegisterAllocator(TargetMachine &T) {
return new PhyRegAlloc (T);
}
@ -76,7 +80,7 @@ void PhyRegAlloc::createIGNodeListsAndIGs() {
// if the Value * is not null, and LR is not yet written to the IGNodeList
if (!(L->getUserIGNode()) ) {
RegClass *const RC = // RegClass of first value in the LR
RegClassList[ L->getRegClass()->getID() ];
RegClassList[ L->getRegClassID() ];
RC->addLRToIG(L); // add this LR to an IG
}
}
@ -427,7 +431,7 @@ bool PhyRegAlloc::markAllocatedRegs(MachineInstr* MInst)
// An operand may have a color whether or not it needs spilling
if (LR->hasColor())
MInst->SetRegForOperand(OpNum,
MRI.getUnifiedRegNum(LR->getRegClass()->getID(),
MRI.getUnifiedRegNum(LR->getRegClassID(),
LR->getColor()));
}
}
@ -675,7 +679,7 @@ void PhyRegAlloc::insertCode4SpilledLR(const LiveRange *LR,
// This may insert code before and after MInst to free up the value. If so,
// this code should be first/last in the spill sequence before/after MInst.
int TmpRegU=(LR->hasColor()
? MRI.getUnifiedRegNum(LR->getRegClass()->getID(),LR->getColor())
? MRI.getUnifiedRegNum(LR->getRegClassID(),LR->getColor())
: getUsableUniRegAtMI(RegType, &LVSetBef, MInst, MIBef,MIAft));
// Set the operand first so that it this register does not get used
@ -1118,10 +1122,10 @@ void PhyRegAlloc::colorIncomingArgs()
//----------------------------------------------------------------------------
// This method calls setSugColorUsable method of each live range. This
// will determine whether the suggested color of LR is really usable.
// A suggested color is not usable when the suggested color is volatile
// AND when there are call interferences
// This method determines whether the suggested color of each live range
// is really usable, and then calls its setSuggestedColorUsable() method to
// record the answer. A suggested color is NOT usable when the suggested color
// is volatile AND when there are call interferences.
//----------------------------------------------------------------------------
void PhyRegAlloc::markUnusableSugColors()
@ -1132,16 +1136,10 @@ void PhyRegAlloc::markUnusableSugColors()
for (; HMI != HMIEnd ; ++HMI ) {
if (HMI->first) {
LiveRange *L = HMI->second; // get the LiveRange
if (L) {
if (L->hasSuggestedColor()) {
int RCID = L->getRegClass()->getID();
if (MRI.isRegVolatile( RCID, L->getSuggestedColor()) &&
L->isCallInterference() )
L->setSuggestedColorUsable( false );
else
L->setSuggestedColorUsable( true );
}
} // if L->hasSuggestedColor()
if (L && L->hasSuggestedColor ())
L->setSuggestedColorUsable
(!(MRI.isRegVolatile (L->getRegClassID (), L->getSuggestedColor ())
&& L->isCallInterference ()));
}
} // for all LR's in hash map
}

32
lib/Target/SparcV9/RegAlloc/PhyRegAlloc.cpp
View File

@ -39,6 +39,10 @@ DRA_opt("dregalloc", cl::Hidden, cl::location(DEBUG_RA),
clEnumValN(RA_DEBUG_Verbose, "v", "extra debug output"),
0));
static cl::opt<bool>
SaveRegAllocState("save-ra-state", cl::Hidden,
cl::desc("write reg. allocator state into module"));
FunctionPass *getRegisterAllocator(TargetMachine &T) {
return new PhyRegAlloc (T);
}
@ -76,7 +80,7 @@ void PhyRegAlloc::createIGNodeListsAndIGs() {
// if the Value * is not null, and LR is not yet written to the IGNodeList
if (!(L->getUserIGNode()) ) {
RegClass *const RC = // RegClass of first value in the LR
RegClassList[ L->getRegClass()->getID() ];
RegClassList[ L->getRegClassID() ];
RC->addLRToIG(L); // add this LR to an IG
}
}
@ -427,7 +431,7 @@ bool PhyRegAlloc::markAllocatedRegs(MachineInstr* MInst)
// An operand may have a color whether or not it needs spilling
if (LR->hasColor())
MInst->SetRegForOperand(OpNum,
MRI.getUnifiedRegNum(LR->getRegClass()->getID(),
MRI.getUnifiedRegNum(LR->getRegClassID(),
LR->getColor()));
}
}
@ -675,7 +679,7 @@ void PhyRegAlloc::insertCode4SpilledLR(const LiveRange *LR,
// This may insert code before and after MInst to free up the value. If so,
// this code should be first/last in the spill sequence before/after MInst.
int TmpRegU=(LR->hasColor()
? MRI.getUnifiedRegNum(LR->getRegClass()->getID(),LR->getColor())
? MRI.getUnifiedRegNum(LR->getRegClassID(),LR->getColor())
: getUsableUniRegAtMI(RegType, &LVSetBef, MInst, MIBef,MIAft));
// Set the operand first so that it this register does not get used
@ -1118,10 +1122,10 @@ void PhyRegAlloc::colorIncomingArgs()
//----------------------------------------------------------------------------
// This method calls setSugColorUsable method of each live range. This
// will determine whether the suggested color of LR is really usable.
// A suggested color is not usable when the suggested color is volatile
// AND when there are call interferences
// This method determines whether the suggested color of each live range
// is really usable, and then calls its setSuggestedColorUsable() method to
// record the answer. A suggested color is NOT usable when the suggested color
// is volatile AND when there are call interferences.
//----------------------------------------------------------------------------
void PhyRegAlloc::markUnusableSugColors()
@ -1132,16 +1136,10 @@ void PhyRegAlloc::markUnusableSugColors()
for (; HMI != HMIEnd ; ++HMI ) {
if (HMI->first) {
LiveRange *L = HMI->second; // get the LiveRange
if (L) {
if (L->hasSuggestedColor()) {
int RCID = L->getRegClass()->getID();
if (MRI.isRegVolatile( RCID, L->getSuggestedColor()) &&
L->isCallInterference() )
L->setSuggestedColorUsable( false );
else
L->setSuggestedColorUsable( true );
}
} // if L->hasSuggestedColor()
if (L && L->hasSuggestedColor ())
L->setSuggestedColorUsable
(!(MRI.isRegVolatile (L->getRegClassID (), L->getSuggestedColor ())
&& L->isCallInterference ()));
}
} // for all LR's in hash map
}