Duncan P. N. Exon Smith 73e3fb6ba8 AsmPrinter: Convert DIE::Values to a linked list ...

Change `DIE::Values` to a singly linked list, where each node is
allocated on a `BumpPtrAllocator`.  In order to support `push_back()`,
the list is circular, and points at the tail element instead of the
head.  I abstracted the core list logic out to `IntrusiveBackList` so
that it can be reused for `DIE::Children`, which also cares about
`push_back()`.

This drops llc memory usage from 799 MB down to 735 MB, about 8%.

(I'm looking at `llc` memory usage on `verify-uselistorder.lto.opt.bc`;
see r236629 for details.)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240733 91177308-0d34-0410-b5e6-96231b3b80d8

2015-06-25 23:46:41 +00:00

..

CMakeLists.txt

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DIEHashTest.cpp

AsmPrinter: Convert DIE::Values to a linked list

2015-06-25 23:46:41 +00:00

Makefile

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