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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-08-03 23:16:09 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-08-03 23:16:09 +0000 |
| commit | a92afc18a8ff72b905902d75a2a4920d5438ca0c (patch) | |
| tree | b7ca8ed99fa27926c51a8f928d547da47ddc276f /lib/CodeGen/RegAllocGreedy.cpp | |
| parent | 5787124820f9f544216675c020ff0b33e090d181 (diff) | |
| download | llvm-a92afc18a8ff72b905902d75a2a4920d5438ca0c.tar.gz llvm-a92afc18a8ff72b905902d75a2a4920d5438ca0c.tar.bz2 llvm-a92afc18a8ff72b905902d75a2a4920d5438ca0c.tar.xz | |
Enable compact region splitting by default.
This helps generate better code in functions with high register
pressure.
The previous version of compact region splitting caused regressions
because the regions were a bit too large. A stronger negative bias
applied in r136832 fixed this problem.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136836 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/RegAllocGreedy.cpp')
| -rw-r--r-- | lib/CodeGen/RegAllocGreedy.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/CodeGen/RegAllocGreedy.cpp b/lib/CodeGen/RegAllocGreedy.cpp index 4c130d0026..87b12c687e 100644 --- a/lib/CodeGen/RegAllocGreedy.cpp +++ b/lib/CodeGen/RegAllocGreedy.cpp @@ -52,7 +52,7 @@ STATISTIC(NumGlobalSplits, "Number of split global live ranges"); STATISTIC(NumLocalSplits, "Number of split local live ranges"); STATISTIC(NumEvicted, "Number of interferences evicted"); -cl::opt<bool> CompactRegions("compact-regions"); +cl::opt<bool> CompactRegions("compact-regions", cl::init(true)); static RegisterRegAlloc greedyRegAlloc("greedy", "greedy register allocator", createGreedyRegisterAllocator); |