Revert "[Decompression] Fail gracefully when out of memory"

This reverts commit r312526.

Revert "Fix test/DebugInfo/dwarfdump-decompression-invalid-size.test"

This reverts commit r312527.

It causes an ASan failure:
http://lab.llvm.org:8080/green/job/clang-stage2-cmake-RgSan_check/4150

llvm-svn: 312582

1 files changed, 3 insertions, 11 deletions

diff --git a/llvm/lib/Object/Decompressor.cpp b/llvm/lib/Object/Decompressor.cpp
index 89821822484..53f084d7620 100644
--- a/llvm/lib/Object/Decompressor.cpp
+++ b/llvm/lib/Object/Decompressor.cpp
@@ -23,7 +23,7 @@ Expected<Decompressor> Decompressor::create(StringRef Name, StringRef Data,
   if (!zlib::isAvailable())
     return createError("zlib is not available");
 
-  Decompressor D(Name, Data);
+  Decompressor D(Data);
   Error Err = isGnuStyle(Name) ? D.consumeCompressedGnuHeader()
                                : D.consumeCompressedZLibHeader(Is64Bit, IsLE);
   if (Err)
@@ -31,8 +31,8 @@ Expected<Decompressor> Decompressor::create(StringRef Name, StringRef Data,
   return D;
 }
 
-Decompressor::Decompressor(StringRef Name, StringRef Data)
-    : SectionName(Name), SectionData(Data), DecompressedSize(0) {}
+Decompressor::Decompressor(StringRef Data)
+    : SectionData(Data), DecompressedSize(0) {}
 
 Error Decompressor::consumeCompressedGnuHeader() {
   if (!SectionData.startswith("ZLIB"))
@@ -92,11 +92,3 @@ Error Decompressor::decompress(MutableArrayRef<char> Buffer) {
   size_t Size = Buffer.size();
   return zlib::uncompress(SectionData, Buffer.data(), Size);
 }
-
-void Decompressor::outOfMemoryHandler(void *Data, const std::string &Message,
-                                      bool) {
-  const auto *D = static_cast<const Decompressor *>(Data);
-  report_fatal_error("decompression of '" + Twine(D->SectionName) +
-                     "' failed: unable to allocate " +
-                     Twine(D->DecompressedSize) + " bytes.");
-}