commit f6c3a4850b55d976882a2eae4027a8e75c67dacd
author Gabriel Marin <gmx@chromium.org> Wed Apr 24 18:28:22 2019
committer Commit Bot <commit-bot@chromium.org> Wed Apr 24 18:28:22 2019
tree 0d0668fd45c7ca9b7c5b530bd4ba7fcd7c4e1151
parent ec95381026318fac4d8c2c154cb3e76f08654113

tcmalloc: Remove use of LINKER_INITIALIZED in STLPageHeapAllocator

Remove use of LINKER_INITILIZED flag for
STLPageHeapAllocator<T, LockingTag>::underlying_.

This is a templated static variable and the compiler doesn't optimize
it away as expected. The reasoning is that the templated variable may
be instantiated from multiple compilation units and the optimization
pass misses this opportunity.

Removing the explicit constructor, enables the compiler to optimize the
global constructor away.

BUG=724399,b:119055819

Change-Id: I8674bfe7dc42a24ef522733f45a9330ae2b33946
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1580043
Commit-Queue: Gabriel Marin <gmx@chromium.org>
Reviewed-by: Will Harris <wfh@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#653673}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: f2131e7ccf1ca01a4e09058316f019b3ecb78fb7