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avoid unnecessary direct access to LiveInterval::ranges

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190170 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Matthias Braun
2013-09-06 16:44:32 +00:00
parent 1920156982
commit b63db85350
4 changed files with 37 additions and 34 deletions
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12
lib/CodeGen/RegisterCoalescer.cpp
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@@ -527,11 +527,11 @@ bool RegisterCoalescer::hasOtherReachingDefs(LiveInterval &IntA,
for (LiveInterval::iterator AI = IntA.begin(), AE = IntA.end();
AI != AE; ++AI) {
if (AI->valno != AValNo) continue;
LiveInterval::Ranges::iterator BI =
std::upper_bound(IntB.ranges.begin(), IntB.ranges.end(), AI->start);
if (BI != IntB.ranges.begin())
LiveInterval::iterator BI =
std::upper_bound(IntB.begin(), IntB.end(), AI->start);
if (BI != IntB.begin())
--BI;
for (; BI != IntB.ranges.end() && AI->end >= BI->start; ++BI) {
for (; BI != IntB.end() && AI->end >= BI->start; ++BI) {
if (BI->valno == BValNo)
continue;
if (BI->start <= AI->start && BI->end > AI->start)
@@ -1089,8 +1089,8 @@ bool RegisterCoalescer::joinCopy(MachineInstr *CopyMI, bool &Again) {
});
// When possible, let DstReg be the larger interval.
if (!CP.isPartial() && LIS->getInterval(CP.getSrcReg()).ranges.size() >
LIS->getInterval(CP.getDstReg()).ranges.size())
if (!CP.isPartial() && LIS->getInterval(CP.getSrcReg()).size() >
LIS->getInterval(CP.getDstReg()).size())
CP.flip();
}