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dupli always has an interval now.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115708 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen 2010-10-05 23:10:04 +00:00
parent 6dbbff9172
commit d00f7e0c76
1 changed files with 11 additions and 14 deletions
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25
lib/CodeGen/SplitKit.cpp
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@ -798,6 +798,7 @@ SplitEditor::addTruncSimpleRange(SlotIndex Start, SlotIndex End, VNInfo *VNI) {
/// instructions using curli to use the new intervals.
void SplitEditor::rewrite() {
assert(!openli_.getLI() && "Previous LI not closed before rewrite");
assert(dupli_.getLI() && "No dupli for rewrite. Noop spilt?");
// First we need to fill in the live ranges in dupli.
// If values were redefined, we need a full recoloring with SSA update.
@ -863,23 +864,19 @@ void SplitEditor::rewrite() {
break;
}
}
if (LI) {
MO.setReg(LI->reg);
sa_.removeUse(MI);
DEBUG(dbgs() << " rewrite " << Idx << '\t' << *MI);
}
MO.setReg(LI->reg);
sa_.removeUse(MI);
DEBUG(dbgs() << " rewrite " << Idx << '\t' << *MI);
}
// dupli_ goes in last, after rewriting.
if (dupli_.getLI()) {
if (dupli_.getLI()->empty()) {
DEBUG(dbgs() << " dupli became empty?\n");
lis_.removeInterval(dupli_.getLI()->reg);
dupli_.reset(0);
} else {
dupli_.getLI()->RenumberValues(lis_);
intervals_.push_back(dupli_.getLI());
}
if (dupli_.getLI()->empty()) {
DEBUG(dbgs() << " dupli became empty?\n");
lis_.removeInterval(dupli_.getLI()->reg);
dupli_.reset(0);
} else {
dupli_.getLI()->RenumberValues(lis_);
intervals_.push_back(dupli_.getLI());
}
// Calculate spill weight and allocation hints for new intervals.