Commit Graph

8 Commits

Author SHA1 Message Date
David Majnemer 95549497ec [GlobalDCE, Misc] Don't remove functions referenced by ifuncs
We forgot to consider the target of ifuncs when considering if a
function was alive or dead.

N.B. Also update a few auxiliary tools like bugpoint and
verify-uselistorder.

This fixes PR27593.

llvm-svn: 268468
2016-05-04 00:20:48 +00:00
Mehdi Amini b550cb1750 [NFC] Header cleanup
Removed some unused headers, replaced some headers with forward class declarations.

Found using simple scripts like this one:
clear && ack --cpp -l '#include "llvm/ADT/IndexedMap.h"' | xargs grep -L 'IndexedMap[<]' | xargs grep -n --color=auto 'IndexedMap'

Patch by Eugene Kosov <claprix@yandex.ru>

Differential Revision: http://reviews.llvm.org/D19219

From: Mehdi Amini <mehdi.amini@apple.com>
llvm-svn: 266595
2016-04-18 09:17:29 +00:00
Evgeniy Stepanov f74f091ea6 Preserve blockaddress use edges in the module splitter.
"blockaddress" can not apply to an external function. All
blockaddress constant uses must belong to the same module as the
definition of the target function.

llvm-svn: 265061
2016-03-31 21:55:11 +00:00
Matthias Braun b30f2f5141 Avoid overly large SmallPtrSet/SmallSet
These sets perform linear searching in small mode so it is never a good
idea to use SmallSize/N bigger than 32.

llvm-svn: 259283
2016-01-30 01:24:31 +00:00
Sergei Larin 427f570ce1 [SplitModule] In split module utility we should never separate alias with its aliasee.
Summary: When splitting module with preserving locals, we currently do not handle case of global alias being separated with its aliasee.

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D16585

llvm-svn: 259075
2016-01-28 18:59:28 +00:00
Tobias Edler von Koch 3f4f6f3ed6 Add a change accidentally left out from r258100
Also remove an executable bit introduced by r258083.

llvm-svn: 258101
2016-01-18 23:35:24 +00:00
Sergei Larin d19d4d30d8 Add to the split module utility an SCC based method which allows not to globalize any local variables.
Summary:
    Currently llvm::SplitModule as the first step globalizes all local objects, which might not be desirable in some scenarios.
    This change adds a new flag to llvm::SplitModule that uses SCC approach to search for a balanced partition without the need to externalize symbols.
    Such partition might not be possible or fully balanced for a given number of partitions, and is a function of the module properties (global/local dependencies within the module).
    
    Joint development Tobias Edler von Koch (tobias@codeaurora.org) and Sergei Larin (slarin@codeaurora.org)
    
    Subscribers: llvm-commits, joker.eph
    
    Differential Revision: http://reviews.llvm.org/D16124

llvm-svn: 258083
2016-01-18 21:07:13 +00:00
Peter Collingbourne 1dc6a8d179 TransformUtils: Introduce module splitter.
The module splitter splits a module into linkable partitions. It will
be used to implement parallel LTO code generation.

This initial version of the splitter does not attempt to deal with the
somewhat subtle symbol visibility issues around module splitting. These
will be dealt with in a future change.

Differential Revision: http://reviews.llvm.org/D12132

llvm-svn: 245662
2015-08-21 02:48:20 +00:00