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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-02-25 01:04:22 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-02-25 01:04:22 +0000 |
| commit | 57f1e2cee06f9b57995727d786aeb1031c5376bd (patch) | |
| tree | fb5767fa8f40572259156bee80fa8a4fd5af421b /lib/CodeGen/RegAllocGreedy.cpp | |
| parent | acca09bd64080393a047204eafad46e2fc34ee68 (diff) | |
| download | external_llvm-57f1e2cee06f9b57995727d786aeb1031c5376bd.tar.gz external_llvm-57f1e2cee06f9b57995727d786aeb1031c5376bd.tar.bz2 external_llvm-57f1e2cee06f9b57995727d786aeb1031c5376bd.zip | |
Try harder to get the hint by preferring to evict hint interference.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126463 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/RegAllocGreedy.cpp')
| -rw-r--r-- | lib/CodeGen/RegAllocGreedy.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/CodeGen/RegAllocGreedy.cpp b/lib/CodeGen/RegAllocGreedy.cpp index 03d1372c2f..406485aaf4 100644 --- a/lib/CodeGen/RegAllocGreedy.cpp +++ b/lib/CodeGen/RegAllocGreedy.cpp @@ -379,6 +379,9 @@ unsigned RAGreedy::tryEvict(LiveInterval &VirtReg, // Best so far. BestPhys = PhysReg; BestWeight = Weight; + // Stop if the hint can be used. + if (Order.isHint(PhysReg)) + break; } if (!BestPhys) |