Changes in directory llvm/lib/Support:
SmallPtrSet.cpp updated: 1.4 -> 1.5
---
Log message:
do not let the table fill up with tombstones.
---
Diffs of the changes: (+5 -1)
SmallPtrSet.cpp | 6 +++++-
1 files changed, 5 insertions(+), 1 deletion(-)
Index: llvm/lib/Support/SmallPtrSet.cpp
diff -u llvm/lib/Support/SmallPtrSet.cpp:1.4
llvm/lib/Support/SmallPtrSet.cpp:1.5
--- llvm/lib/Support/SmallPtrSet.cpp:1.4 Mon Feb 5 17:10:31 2007
+++ llvm/lib/Support/SmallPtrSet.cpp Tue Feb 6 19:11:25 2007
@@ -32,7 +32,8 @@
}
// If more than 3/4 of the array is full, grow.
- if (NumElements*4 >= CurArraySize*3)
+ if (NumElements*4 >= CurArraySize*3 ||
+ CurArraySize-(NumElements+NumTombstones) < CurArraySize/8)
Grow();
// Okay, we know we have space. Find a hash bucket.
@@ -40,6 +41,8 @@
if (*Bucket == Ptr) return false; // Already inserted, good.
// Otherwise, insert it!
+ if (*Bucket == getTombstoneMarker())
+ --NumTombstones;
*Bucket = Ptr;
++NumElements; // Track density.
return true;
@@ -69,6 +72,7 @@
// Set this as a tombstone.
*Bucket = getTombstoneMarker();
--NumElements;
+ ++NumTombstones;
return true;
}
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