[PATCH] D20613: Make SectionPiece 8 bytes smaller on LP64.

[Rui Ueyama via llvm-commits]

ruiu created this revision.
ruiu added a reviewer: silvas.
ruiu added a subscriber: llvm-commits.

This patch makes SectionPiece class 8 bytes smaller on platforms
on which pointer size is 8 bytes. Sean suggested in a post commit
review for r270340 that this could make a differentce, and it
actually is. Time to link clang (with debug info) improved from
6.725 seconds to 6.589 seconds or by 2%.

http://reviews.llvm.org/D20613

Files:
  ELF/InputSection.h
  ELF/OutputSections.cpp
  ELF/OutputSections.h

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