[lld] d7e6575 - [lld/mac] Tweak reserve() argument in unwind code

[Nico Weber via llvm-commits]

Author: Nico Weber
Date: 2021-07-07T11:44:22-04:00
New Revision: d7e65757ed8f2dfe17b71cf169a3c83a155d1c2b

URL: https://github.com/llvm/llvm-project/commit/d7e65757ed8f2dfe17b71cf169a3c83a155d1c2b
DIFF: https://github.com/llvm/llvm-project/commit/d7e65757ed8f2dfe17b71cf169a3c83a155d1c2b.diff

LOG: [lld/mac] Tweak reserve() argument in unwind code

addEntriesForFunctionsWithoutUnwindInfo() can add entries to cuVector, so
cuCount can be stale. Use cuVector.size() instead.

No behavior change.

Added: 
    

Modified: 
    lld/MachO/UnwindInfoSection.cpp

Removed: 
    


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diff  --git a/lld/MachO/UnwindInfoSection.cpp b/lld/MachO/UnwindInfoSection.cpp
index 3bc1ec3445ff1..4864a248d6b16 100644
--- a/lld/MachO/UnwindInfoSection.cpp
+++ b/lld/MachO/UnwindInfoSection.cpp
@@ -379,7 +379,7 @@ template <class Ptr> void UnwindInfoSectionImpl<Ptr>::finalize() {
 
   // Rather than sort & fold the 32-byte entries directly, we create a
   // vector of pointers to entries and sort & fold that instead.
-  cuPtrVector.reserve(cuCount);
+  cuPtrVector.reserve(cuVector.size());
   for (CompactUnwindEntry<Ptr> &cuEntry : cuVector)
     cuPtrVector.emplace_back(&cuEntry);
   llvm::sort(cuPtrVector, [](const CompactUnwindEntry<Ptr> *a,