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| author | Gabor Greif <ggreif@gmail.com> | 2009-03-04 20:36:44 +0000 |
|---|---|---|
| committer | Gabor Greif <ggreif@gmail.com> | 2009-03-04 20:36:44 +0000 |
| commit | c23b8719ef9d6b1220e854b37d40e9e1c48a82bc (patch) | |
| tree | afd0f1a6f924ba5609ce8f6212078b7407895840 /include/llvm/CodeGen/MachineBasicBlock.h | |
| parent | 076aee32e86bc4a0c096262b3261923f25220dc6 (diff) | |
Give sentinel traits the right to determine the policy where the sentinel is kept.
This should result in less indirect memory accesses, less dead writes and tighter code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66061 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/llvm/CodeGen/MachineBasicBlock.h')
| -rw-r--r-- | include/llvm/CodeGen/MachineBasicBlock.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/llvm/CodeGen/MachineBasicBlock.h b/include/llvm/CodeGen/MachineBasicBlock.h index 5a9f3991f2..de0a4c40f1 100644 --- a/include/llvm/CodeGen/MachineBasicBlock.h +++ b/include/llvm/CodeGen/MachineBasicBlock.h @@ -38,6 +38,9 @@ public: } void destroySentinel(MachineInstr *) const {} + MachineInstr *provideInitialHead() const { return createSentinel(); } + MachineInstr *ensureHead(MachineInstr*) const { return createSentinel(); } + void addNodeToList(MachineInstr* N); void removeNodeFromList(MachineInstr* N); void transferNodesFromList(ilist_traits &SrcTraits, |