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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-04-02 22:30:39 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-04-02 22:30:39 +0000 |
| commit | e3b23cde80b19507f1d8b641a541e91ace0864dc (patch) | |
| tree | 10806194e6d64949fd2dd95d36f75211a6c7f84c /lib/CodeGen | |
| parent | 8a06af96698537377275dd7848db69915638dd26 (diff) | |
| download | external_llvm-e3b23cde80b19507f1d8b641a541e91ace0864dc.tar.gz external_llvm-e3b23cde80b19507f1d8b641a541e91ace0864dc.tar.bz2 external_llvm-e3b23cde80b19507f1d8b641a541e91ace0864dc.zip | |
Allocate virtual registers in ascending order.
This is just the fallback tie-breaker ordering, the main allocation
order is still descending size.
Patch by Shamil Kurmangaleev!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153904 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen')
| -rw-r--r-- | lib/CodeGen/RegAllocGreedy.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/CodeGen/RegAllocGreedy.cpp b/lib/CodeGen/RegAllocGreedy.cpp index f29a85287b..d00259a6d9 100644 --- a/lib/CodeGen/RegAllocGreedy.cpp +++ b/lib/CodeGen/RegAllocGreedy.cpp @@ -428,13 +428,13 @@ void RAGreedy::enqueue(LiveInterval *LI) { Prio |= (1u << 30); } - Queue.push(std::make_pair(Prio, Reg)); + Queue.push(std::make_pair(Prio, ~Reg)); } LiveInterval *RAGreedy::dequeue() { if (Queue.empty()) return 0; - LiveInterval *LI = &LIS->getInterval(Queue.top().second); + LiveInterval *LI = &LIS->getInterval(~Queue.top().second); Queue.pop(); return LI; } |