[llvm] 8d2258f - [memprof] Call llvm::SmallVector::reserve (#93324)

[via llvm-commits]

Author: Kazu Hirata
Date: 2024-05-24T10:42:46-07:00
New Revision: 8d2258fd3b2a4cde56cc2c679a9ee5b2c966a9e0

URL: https://github.com/llvm/llvm-project/commit/8d2258fd3b2a4cde56cc2c679a9ee5b2c966a9e0
DIFF: https://github.com/llvm/llvm-project/commit/8d2258fd3b2a4cde56cc2c679a9ee5b2c966a9e0.diff

LOG: [memprof] Call llvm::SmallVector::reserve (#93324)

Added: 
    

Modified: 
    llvm/lib/ProfileData/MemProf.cpp

Removed: 
    


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diff  --git a/llvm/lib/ProfileData/MemProf.cpp b/llvm/lib/ProfileData/MemProf.cpp
index 5c86c0d9c7bbb..e5608644519db 100644
--- a/llvm/lib/ProfileData/MemProf.cpp
+++ b/llvm/lib/ProfileData/MemProf.cpp
@@ -208,6 +208,7 @@ static IndexedMemProfRecord deserializeV2(const MemProfSchema &Schema,
   // Read the meminfo nodes.
   const uint64_t NumNodes =
       endian::readNext<uint64_t, llvm::endianness::little>(Ptr);
+  Record.AllocSites.reserve(NumNodes);
   for (uint64_t I = 0; I < NumNodes; I++) {
     IndexedAllocationInfo Node;
     Node.CSId = endian::readNext<CallStackId, llvm::endianness::little>(Ptr);
@@ -219,6 +220,7 @@ static IndexedMemProfRecord deserializeV2(const MemProfSchema &Schema,
   // Read the callsite information.
   const uint64_t NumCtxs =
       endian::readNext<uint64_t, llvm::endianness::little>(Ptr);
+  Record.CallSiteIds.reserve(NumCtxs);
   for (uint64_t J = 0; J < NumCtxs; J++) {
     CallStackId CSId =
         endian::readNext<CallStackId, llvm::endianness::little>(Ptr);