From d7e65757ed8f2dfe17b71cf169a3c83a155d1c2b Mon Sep 17 00:00:00 2001
From: Nico Weber <thakis@chromium.org>
Date: Wed, 7 Jul 2021 11:44:22 -0400
Subject: [PATCH] [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.
---
 lld/MachO/UnwindInfoSection.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lld/MachO/UnwindInfoSection.cpp b/lld/MachO/UnwindInfoSection.cpp
index 3bc1ec3..4864a24 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,
-- 
2.7.4