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Avoid read after free.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49760 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng 2008-04-16 01:22:28 +00:00
parent 302cd54299
commit d94950c473
1 changed files with 1 additions and 1 deletions
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2
lib/CodeGen/SimpleRegisterCoalescing.cpp
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@ -553,7 +553,6 @@ static void removeRange(LiveInterval &li, unsigned Start, unsigned End,
static void removeIntervalIfEmpty(LiveInterval &li, LiveIntervals *li_,
const TargetRegisterInfo *tri_) {
if (li.empty()) {
li_->removeInterval(li.reg);
if (TargetRegisterInfo::isPhysicalRegister(li.reg))
for (const unsigned* SR = tri_->getSubRegisters(li.reg); *SR; ++SR) {
if (!li_->hasInterval(*SR))
@ -562,6 +561,7 @@ static void removeIntervalIfEmpty(LiveInterval &li, LiveIntervals *li_,
if (sli.empty())
li_->removeInterval(*SR);
}
li_->removeInterval(li.reg);
}
}