diff options
author | Manman Ren <manman.ren@gmail.com> | 2013-10-01 19:52:23 +0000 |
---|---|---|
committer | Manman Ren <manman.ren@gmail.com> | 2013-10-01 19:52:23 +0000 |
commit | 620f436b205ab75e1dd48b9af8823bc30c53fd0e (patch) | |
tree | 14f7063a4c9f6a7de435b7b16894045baeb9ffb0 /docs/conf.py | |
parent | dfef7cbfc6a96d129b99750f554c7dbc000d3228 (diff) | |
download | external_llvm-620f436b205ab75e1dd48b9af8823bc30c53fd0e.zip external_llvm-620f436b205ab75e1dd48b9af8823bc30c53fd0e.tar.gz external_llvm-620f436b205ab75e1dd48b9af8823bc30c53fd0e.tar.bz2 |
Debug Info: remove duplication of DIEs when a DIE is part of the type system
and it is shared across CUs.
We add a few maps in DwarfDebug to map MDNodes for the type system to the
corresponding DIEs: MDTypeNodeToDieMap, MDSPNodeToDieMap, and
MDStaticMemberNodeToDieMap. These DIEs can be shared across CUs, that is why we
keep the maps in DwarfDebug instead of CompileUnit.
Sometimes, when we try to add an attribute to a DIE, the DIE is not yet added
to its owner yet, so we don't know whether we should use ref_addr or ref4.
We create a worklist that will be processed during finalization to add
attributes with the correct form (ref_addr or ref4).
We add addDIEEntry to DwarfDebug to be a wrapper around DIE->addValue. It checks
whether we know the correct form, if not, we update the worklist
(DIEEntryWorklist).
A testing case is added to show that we only create a single DIE for a type
MDNode and we use ref_addr to refer to the type DIE.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191792 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'docs/conf.py')
0 files changed, 0 insertions, 0 deletions