[PATCH] D50223: [Support] Add zlib::compress which operates on std::unique_ptr<uint8_t[]>

[Fangrui Song via Phabricator via llvm-commits]

MaskRay updated this revision to Diff 159067.
MaskRay added a comment.

Use set_size


Repository:
  rL LLVM

https://reviews.llvm.org/D50223

Files:
  lib/Support/Compression.cpp


Index: lib/Support/Compression.cpp
===================================================================
--- lib/Support/Compression.cpp
+++ lib/Support/Compression.cpp
@@ -61,15 +61,15 @@
                      SmallVectorImpl<char> &CompressedBuffer,
                      CompressionLevel Level) {
   unsigned long CompressedSize = ::compressBound(InputBuffer.size());
-  CompressedBuffer.resize(CompressedSize);
+  CompressedBuffer.reserve(CompressedSize);
   int CLevel = encodeZlibCompressionLevel(Level);
   int Res = ::compress2((Bytef *)CompressedBuffer.data(), &CompressedSize,
                         (const Bytef *)InputBuffer.data(), InputBuffer.size(),
                         CLevel);
   // Tell MemorySanitizer that zlib output buffer is fully initialized.
   // This avoids a false report when running LLVM with uninstrumented ZLib.
   __msan_unpoison(CompressedBuffer.data(), CompressedSize);
-  CompressedBuffer.resize(CompressedSize);
+  CompressedBuffer.set_size(CompressedSize);
   return Res ? createError(convertZlibCodeToString(Res)) : Error::success();
 }
 


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