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Added support for both call/jmpl instructions

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@930 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Ruchira Sasanka
2001-10-21 16:43:41 +00:00
parent 5ab1f87786
commit b3b6f5338c
5 changed files with 250 additions and 141 deletions
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35
lib/Target/SparcV9/RegAlloc/PhyRegAlloc.cpp
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@@ -149,7 +149,7 @@ void PhyRegAlloc::setCallInterferences(const MachineInstr *MInst,
const LiveVarSet *const LVSetAft )
{
// Now find the LR of the return value of the call
// The last *implicit operand* is the return value of a call
// We do this because, we look at the LV set *after* the instruction
// to determine, which LRs must be saved across calls. The return value
@@ -158,19 +158,13 @@ void PhyRegAlloc::setCallInterferences(const MachineInstr *MInst,
LiveRange *RetValLR = NULL;
unsigned NumOfImpRefs = MInst->getNumImplicitRefs();
if( NumOfImpRefs > 0 ) {
if( MInst->implicitRefIsDefined(NumOfImpRefs-1) ) {
const Value *RetVal = MInst->getImplicitRef(NumOfImpRefs-1);
RetValLR = LRI.getLiveRangeForValue( RetVal );
assert( RetValLR && "No LR for RetValue of call");
}
const Value *RetVal = MRI.getCallInstRetVal( MInst );
if( RetVal ) {
RetValLR = LRI.getLiveRangeForValue( RetVal );
assert( RetValLR && "No LR for RetValue of call");
}
if( DEBUG_RA)
cout << "\n For call inst: " << *MInst;
@@ -356,20 +350,17 @@ void PhyRegAlloc::insertCallerSavingCode(const MachineInstr *MInst,
// to determine, which LRs must be saved across calls. The return value
// of the call is live in this set - but we must not save/restore it.
unsigned NumOfImpRefs = MInst->getNumImplicitRefs();
if( NumOfImpRefs > 0 ) {
if( MInst->implicitRefIsDefined(NumOfImpRefs-1) ) {
const Value *RetVal = MInst->getImplicitRef(NumOfImpRefs-1);
LiveRange *RetValLR = LRI.getLiveRangeForValue( RetVal );
assert( RetValLR && "No LR for RetValue of call");
const Value *RetVal = MRI.getCallInstRetVal( MInst );
PushedRegSet.insert(
MRI.getUnifiedRegNum((RetValLR->getRegClass())->getID(),
RetValLR->getColor() ) );
}
if( RetVal ) {
LiveRange *RetValLR = LRI.getLiveRangeForValue( RetVal );
assert( RetValLR && "No LR for RetValue of call");
PushedRegSet.insert(
MRI.getUnifiedRegNum((RetValLR->getRegClass())->getID(),
RetValLR->getColor() ) );
}