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8 Commits

Author SHA1 Message Date
Evgeniy Stepanov
5fe6dfe713 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
Evgeniy Stepanov
e383f522a4 Preserve extern_weak linkage in CloneModule. 
Only force "extern" linkage if the function used to be a definition
in the source module. Declarations keep their original linkage.

llvm-svn: 265043
 2016-03-31 20:21:31 +00:00
Evgeniy Stepanov
730f156c56 Remove personality for declarations in CloneModule. 
Personality is copied as part of copyFunctionAttributes, but it is
invalid on a declaration. Remove the personality attribute it the
function body is not cloned.

Also add a verifier run over output modules in the llvm-split tool.

llvm-svn: 264667
 2016-03-28 21:37:02 +00:00
Sergei Larin
6eb351346a [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
Sergei Larin
72115d5fb6 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
Rafael Espindola
9cb8841b77 Have a single way for creating unique value names. 
We had two code paths. One would create names like "foo.1" and the other
names like "foo1".

For globals it is important to use "foo.1" to help C++ name demangling.
For locals there is no strong reason to go one way or the other so I
kept the most common mangling (foo1).

llvm-svn: 253804
 2015-11-22 00:16:24 +00:00
David Blaikie
65b92c4f37 [opaque pointer type] Add textual IR support for explicit type parameter for global aliases 
update.py:
import fileinput
import sys
import re

alias_match_prefix = r"(.*(?:=|:|^)\s*(?:external |)(?:(?:private|internal|linkonce|linkonce_odr|weak|weak_odr|common|appending|extern_weak|available_externally) )?(?:default |hidden |protected )?(?:dllimport |dllexport )?(?:unnamed_addr |)(?:thread_local(?:\([a-z]*\))? )?alias"
plain = re.compile(alias_match_prefix + r" (.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|addrspacecast|\[\[[a-zA-Z]|\{\{).*$)")
cast  = re.compile(alias_match_prefix + r") ((?:bitcast|inttoptr|addrspacecast)\s*\(.* to (.*?)(| addrspace\(\d+\) *)\*\)\s*(?:;.*)?$)")
gep   = re.compile(alias_match_prefix + r") ((?:getelementptr)\s*(?:inbounds)?\s*\((?P<type>.*), (?P=type)(?:\s*addrspace\(\d+\)\s*)?\* .*\)\s*(?:;.*)?$)")

def conv(line):
  m = re.match(cast, line)
  if m:
    return m.group(1) + " " + m.group(3) + ", " + m.group(2)
  m = re.match(gep, line)
  if m:
    return m.group(1) + " " + m.group(3) + ", " + m.group(2)
  m = re.match(plain, line)
  if m:
    return m.group(1) + ", " + m.group(2) + m.group(3) + "*" + m.group(4) + "\n"
  return line

for line in sys.stdin:
  sys.stdout.write(conv(line))

apply.sh:
for name in "$@"
do
  python3 `dirname "$0"`/update.py < "$name" > "$name.tmp" && mv "$name.tmp" "$name"
  rm -f "$name.tmp"
done

The actual commands:
From llvm/src:
find test/ -name *.ll | xargs ./apply.sh
From llvm/src/tools/clang:
find test/ -name *.mm -o -name *.m -o -name *.cpp -o -name *.c | xargs -I '{}' ../../apply.sh "{}"
From llvm/src/tools/polly:
find test/ -name *.ll | xargs ./apply.sh

llvm-svn: 247378
 2015-09-11 03:22:04 +00:00
Peter Collingbourne
96b0ffdce8 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