[llvm] [memprof] Speed up caller-callee pair extraction (PR #116184)
Kazu Hirata via llvm-commits
llvm-commits at lists.llvm.org
Thu Nov 14 09:04:19 PST 2024
================
@@ -1303,6 +1303,10 @@ Error IndexedMemProfReader::deserializeV3(const unsigned char *Start,
FrameBase = Ptr;
CallStackBase = Start + CallStackPayloadOffset;
+ // Compute the number of elements in the radix tree array.
+ RadixTreeSize = (RecordPayloadOffset - CallStackPayloadOffset) /
----------------
kazutakahirata wrote:
What kind of assertion do you have in mind on the generator side? Something like this?
```
// The deserializer relies on the fact that the record section immediately follows
// the radix tree array.
assert(CallStackPayloadOffset <= RecordPayloadOffset);
```
By the way, I've updated the comment in the latest revision.
https://github.com/llvm/llvm-project/pull/116184
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