- Rewrite code that update register live interval that's split.

- Create and update spill slot live intervals.
- Lots of bug fixes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58367 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 16 insertions, 0 deletions

diff --git a/include/llvm/CodeGen/LiveStackAnalysis.h b/include/llvm/CodeGen/LiveStackAnalysis.h
index 5c88bb83c5..6b5235a5d1 100644
--- a/include/llvm/CodeGen/LiveStackAnalysis.h
+++ b/include/llvm/CodeGen/LiveStackAnalysis.h
@@ -52,6 +52,22 @@ namespace llvm {
       return I->second;
     }
 
+    LiveInterval &getInterval(int Slot) {
+      SS2IntervalMap::iterator I = s2iMap.find(Slot);
+      assert(I != s2iMap.end() && "Interval does not exist for stack slot");
+      return I->second;
+    }
+
+    const LiveInterval &getInterval(int Slot) const {
+      SS2IntervalMap::const_iterator I = s2iMap.find(Slot);
+      assert(I != s2iMap.end() && "Interval does not exist for stack slot");
+      return I->second;
+    }
+
+    bool hasInterval(unsigned reg) const {
+      return s2iMap.count(reg);
+    }
+
     BumpPtrAllocator& getVNInfoAllocator() { return VNInfoAllocator; }
 
     virtual void getAnalysisUsage(AnalysisUsage &AU) const;