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| author | Bill Wendling <isanbard@gmail.com> | 2008-01-04 20:54:55 +0000 |
|---|---|---|
| committer | Bill Wendling <isanbard@gmail.com> | 2008-01-04 20:54:55 +0000 |
| commit | 67d65bb69d5cad957cbb6d672dc0b4a19c211a42 (patch) | |
| tree | 18e75f184bc456659e065bd81df678486e1f3c3d /lib/CodeGen/RegAllocLinearScan.cpp | |
| parent | b670a1737bae5c3ecc65042d3a1b10d774ecd252 (diff) | |
Don't recalculate the loop info and loop dominators analyses if they're
preserved.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45596 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/RegAllocLinearScan.cpp')
| -rw-r--r-- | lib/CodeGen/RegAllocLinearScan.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/CodeGen/RegAllocLinearScan.cpp b/lib/CodeGen/RegAllocLinearScan.cpp index 17d416a4a6..6f850eb1b3 100644 --- a/lib/CodeGen/RegAllocLinearScan.cpp +++ b/lib/CodeGen/RegAllocLinearScan.cpp @@ -104,6 +104,8 @@ namespace { // to coalescing and which analyses coalescing invalidates. AU.addRequiredTransitive<RegisterCoalescer>(); AU.addRequired<MachineLoopInfo>(); + AU.addPreserved<MachineLoopInfo>(); + AU.addPreservedID(MachineDominatorsID); MachineFunctionPass::getAnalysisUsage(AU); } |