[PATCH] D49094: Reduce memory usage when creating .gdb_index. NFC.

Mon Jul 9 11:40:45 PDT 2018

ruiu created this revision.
ruiu added a reviewer: grimar.
Herald added subscribers: arichardson, emaste.
Herald added a reviewer: espindola.

.gdb_index sections can be very large. When you are compiling
multi-gibibyte executables, they can be larger than 1 GiB. The previous
implementation of .gdb_index seems to consume too much memory.

This patch is to reduce the memory consumption by eliminating temporary
objects.

https://reviews.llvm.org/D49094

Files:
  lld/ELF/SyntheticSections.cpp
  lld/ELF/SyntheticSections.h

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