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Changed implementation of Serialize::EmitDiffPtrID and

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Deserialize::ReadDiffPtrID to read and emit bools instead of unsigned
integers. This should result in a nice space optimization once we have
"auto-abbreviation" generation in place.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44200 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Ted Kremenek
2007-11-17 00:45:37 +00:00
parent 04ab82a806
commit 07cad1c6ce
2 changed files with 5 additions and 4 deletions
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4
include/llvm/Bitcode/Deserialize.h
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@ -141,8 +141,8 @@ public:
SerializedPtrID ReadPtrID() { return (SerializedPtrID) ReadInt(); } SerializedPtrID ReadPtrID() { return (SerializedPtrID) ReadInt(); }
SerializedPtrID ReadDiffPtrID(SerializedPtrID& PrevID) { SerializedPtrID ReadDiffPtrID(SerializedPtrID& PrevID) {
unsigned x = ReadInt(); bool x = ReadBool();
return (SerializedPtrID) (x ? (PrevID+x) : 0); return (SerializedPtrID) (x ? (PrevID+1) : 0);
} }

5
include/llvm/Bitcode/Serialize.h
View File

@ -57,10 +57,11 @@ public:
SerializedPtrID ptr_id = getPtrId(ptr); SerializedPtrID ptr_id = getPtrId(ptr);
if (ptr_id == 0) if (ptr_id == 0)
EmitInt(0); EmitBool(false);
else { else {
assert (ptr_id > PrevID); assert (ptr_id > PrevID);
EmitInt(ptr_id-PrevID); assert (PrevID == 0 || ptr_id - PrevID == 1);
EmitBool(true);
} }
return ptr_id; return ptr_id;