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| author | Evan Cheng <evan.cheng@apple.com> | 2012-09-21 20:04:28 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2012-09-21 20:04:28 +0000 |
| commit | bb36a438722d4d56febc07c6472c8446bb6faafe (patch) | |
| tree | dc4087eac8744b01f28bc0db43904ac33b8d5115 /lib/CodeGen/RegAllocGreedy.cpp | |
| parent | fdb6ec34cd378dd2acb8032f9210c94be3e88fe9 (diff) | |
| download | llvm-bb36a438722d4d56febc07c6472c8446bb6faafe.tar.gz llvm-bb36a438722d4d56febc07c6472c8446bb6faafe.tar.bz2 llvm-bb36a438722d4d56febc07c6472c8446bb6faafe.tar.xz | |
Fix a significant recent(?) regression. StackSlotColoring no longer did anything
because LiveStackAnalysis was not preserved by VirtRegWriter. This caused
big stack usage regression in some cases.
rdar://12340383
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164408 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 20ba804446..06f69c1e0d 100644 --- a/lib/CodeGen/RegAllocGreedy.cpp +++ b/lib/CodeGen/RegAllocGreedy.cpp @@ -330,9 +330,9 @@ void RAGreedy::getAnalysisUsage(AnalysisUsage &AU) const { AU.addPreserved<SlotIndexes>(); AU.addRequired<LiveDebugVariables>(); AU.addPreserved<LiveDebugVariables>(); - AU.addRequired<CalculateSpillWeights>(); AU.addRequired<LiveStacks>(); AU.addPreserved<LiveStacks>(); + AU.addRequired<CalculateSpillWeights>(); AU.addRequired<MachineDominatorTree>(); AU.addPreserved<MachineDominatorTree>(); AU.addRequired<MachineLoopInfo>(); |