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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-04-12 19:32:53 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-04-12 19:32:53 +0000 |
| commit | fd5c51342a429ecab86a645282d0b36b216c0256 (patch) | |
| tree | bd5a3578e22fd96cf4fd203bfb8a658db3566e4d /lib/CodeGen/SplitKit.h | |
| parent | 5d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962 (diff) | |
| download | llvm-fd5c51342a429ecab86a645282d0b36b216c0256.tar.gz llvm-fd5c51342a429ecab86a645282d0b36b216c0256.tar.bz2 llvm-fd5c51342a429ecab86a645282d0b36b216c0256.tar.xz | |
Create new intervals for isolated blocks during region splitting.
This merges the behavior of splitSingleBlocks into splitAroundRegion, so the
RS_Region and RS_Block register stages can be coalesced. That means the leftover
intervals after region splitting go directly to spilling instead of a second
pass of per-block splitting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129379 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/SplitKit.h')
| -rw-r--r-- | lib/CodeGen/SplitKit.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/CodeGen/SplitKit.h b/lib/CodeGen/SplitKit.h index fab56f70d9..a387896a5d 100644 --- a/lib/CodeGen/SplitKit.h +++ b/lib/CodeGen/SplitKit.h @@ -347,6 +347,11 @@ public: // ===--- High level methods ---=== + /// splitSingleBlock - Split CurLI into a separate live interval around the + /// uses in a single block. This is intended to be used as part of a larger + /// split, and doesn't call finish(). + void splitSingleBlock(const SplitAnalysis::BlockInfo &BI); + /// splitSingleBlocks - Split CurLI into a separate live interval inside each /// basic block in Blocks. void splitSingleBlocks(const SplitAnalysis::BlockPtrSet &Blocks); |