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Zap the last two -Wself-assign warnings in llvm.

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Simplify RALinScan::DowngradeRegister with TRI::getOverlaps while we are there.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122940 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen
2011-01-06 01:33:22 +00:00
parent 8bfe50871f
commit 19bb35db1f
2 changed files with 5 additions and 8 deletions
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10
lib/CodeGen/RegAllocLinearScan.cpp
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@ -933,13 +933,9 @@ LiveInterval *RALinScan::hasNextReloadInterval(LiveInterval *cur) {
}
void RALinScan::DowngradeRegister(LiveInterval *li, unsigned Reg) {
bool isNew = DowngradedRegs.insert(Reg);
(void)isNew; // Silence compiler warning.
assert(isNew && "Multiple reloads holding the same register?");
DowngradeMap.insert(std::make_pair(li->reg, Reg));
for (const unsigned *AS = tri_->getAliasSet(Reg); *AS; ++AS) {
isNew = DowngradedRegs.insert(*AS);
isNew = isNew; // Silence compiler warning.
for (const unsigned *AS = tri_->getOverlaps(Reg); *AS; ++AS) {
bool isNew = DowngradedRegs.insert(*AS);
(void)isNew; // Silence compiler warning.
assert(isNew && "Multiple reloads holding the same register?");
DowngradeMap.insert(std::make_pair(li->reg, *AS));
}