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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-01-06 01:21:53 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-01-06 01:21:53 +0000 |
| commit | 8bfe50871f9cb1b022483e0e1307ab5b8c9e5650 (patch) | |
| tree | 7592b8d248dae5cc9576b9d7a315230bccffd99d /include/llvm/InitializePasses.h | |
| parent | 05e353c4eda22c99967453029dfa7de276409951 (diff) | |
| download | llvm-8bfe50871f9cb1b022483e0e1307ab5b8c9e5650.tar.gz llvm-8bfe50871f9cb1b022483e0e1307ab5b8c9e5650.tar.bz2 llvm-8bfe50871f9cb1b022483e0e1307ab5b8c9e5650.tar.xz | |
Add the SpillPlacement analysis pass.
This pass precomputes CFG block frequency information that can be used by the
register allocator to find optimal spill code placement.
Given an interference pattern, placeSpills() will compute which basic blocks
should have the current variable enter or exit in a register, and which blocks
prefer the stack.
The algorithm is ready to consume block frequencies from profiling data, but for
now it gets by with the static estimates used for spill weights.
This is a work in progress and still not hooked up to RegAllocGreedy.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122938 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/llvm/InitializePasses.h')
| -rw-r--r-- | include/llvm/InitializePasses.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/llvm/InitializePasses.h b/include/llvm/InitializePasses.h index dc45716328..0781280976 100644 --- a/include/llvm/InitializePasses.h +++ b/include/llvm/InitializePasses.h @@ -203,6 +203,7 @@ void initializeSimplifyLibCallsPass(PassRegistry&); void initializeSingleLoopExtractorPass(PassRegistry&); void initializeSinkingPass(PassRegistry&); void initializeSlotIndexesPass(PassRegistry&); +void initializeSpillPlacementPass(PassRegistry&); void initializeStackProtectorPass(PassRegistry&); void initializeStackSlotColoringPass(PassRegistry&); void initializeStripDeadDebugInfoPass(PassRegistry&); |