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Change all self assignments X=X to (void)X, so that we can turn on a

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new gcc warning that complains on self-assignments and
self-initializations.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122458 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jeffrey Yasskin
2010-12-23 00:58:24 +00:00
parent 65e43a259f
commit 8e68c38735
20 changed files with 31 additions and 37 deletions
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2
lib/CodeGen/RegAllocLinearScan.cpp
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@@ -934,7 +934,7 @@ LiveInterval *RALinScan::hasNextReloadInterval(LiveInterval *cur) {
void RALinScan::DowngradeRegister(LiveInterval *li, unsigned Reg) {
bool isNew = DowngradedRegs.insert(Reg);
isNew = isNew; // Silence compiler warning.
(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) {