Commit Graph

12 Commits

Author SHA1 Message Date
Peter Collingbourne 6201d78653 gold-plugin: Simplify naming of object files created with save-temps or obj-path.
Now we never append a number to the file name for task ID 0.

Differential Revision: https://reviews.llvm.org/D29160

llvm-svn: 293132
2017-01-26 02:07:05 +00:00
Davide Italiano 2ceb628f36 [LTO] Reject modules without datalayout.
Also, udpate the ~60 failing tests in the tree which did
not contain a valid datalayout.
This fixes PR31123. lld will be updated in a following patch,
immediately after this is committed.

Differential Revision:  https://reviews.llvm.org/D27082

llvm-svn: 289719
2016-12-14 21:57:04 +00:00
Teresa Johnson 896fee2846 [gold] Split plugin options controlling ThinLTO and codegen parallelism.
Summary:
As suggested in D24826, use different options for ThinLTO backend
parallelism from the option controlling regular LTO code gen
parallelism. They are already split in the LTO API, and this enables
controlling them with different clang options.

Reviewers: pcc, mehdi_amini

Subscribers: dexonsmith, llvm-commits, mehdi_amini

Differential Revision: https://reviews.llvm.org/D24873

llvm-svn: 282290
2016-09-23 20:35:19 +00:00
NAKAMURA Takumi a535636759 Fix tests in llvm/test/tools/gold/X86 to satisfy r279014.
They would unexpectedly pass if test/tools/gold/X86/Output had outputs of previous tests.

llvm-svn: 279214
2016-08-19 06:44:44 +00:00
Teresa Johnson 9ba95f99f3 Restore "Resolution-based LTO API."
This restores commit r278330, with fixes for a few bot failures:
- Fix a late change I had made to the save temps output file that I
  missed due to existing files sitting on my disk
- Fix a bunch of Windows bot failures with "ambiguous call to overloaded
  function" due to confusion between llvm::make_unique vs
  std::make_unique (preface the new make_unique calls with "llvm::")
- Attempt to fix a modules bot failure by adding a missing include
  to LTO/Config.h.

Original change:

Resolution-based LTO API.

Summary:
This introduces a resolution-based LTO API. The main advantage of this API over
existing APIs is that it allows the linker to supply a resolution for each
symbol in each object, rather than the combined object as a whole. This will
become increasingly important for use cases such as ThinLTO which require us
to process symbol resolutions in a more complicated way than just adjusting
linkage.

Patch by Peter Collingbourne.

Reviewers: rafael, tejohnson, mehdi_amini

Subscribers: lhames, tejohnson, mehdi_amini, llvm-commits

Differential Revision: https://reviews.llvm.org/D20268

llvm-svn: 278338
2016-08-11 14:58:12 +00:00
Teresa Johnson cbf684e6c6 Revert "Resolution-based LTO API."
This reverts commit r278330.

I made a change to the save temps output that is causing issues with the
bots. Didn't realize this because I had older output files sitting on
disk in my test output directory.

llvm-svn: 278331
2016-08-11 13:03:56 +00:00
Teresa Johnson f99573b3ee Resolution-based LTO API.
Summary:
This introduces a resolution-based LTO API. The main advantage of this API over
existing APIs is that it allows the linker to supply a resolution for each
symbol in each object, rather than the combined object as a whole. This will
become increasingly important for use cases such as ThinLTO which require us
to process symbol resolutions in a more complicated way than just adjusting
linkage.

Patch by Peter Collingbourne.

Reviewers: rafael, tejohnson, mehdi_amini

Subscribers: lhames, tejohnson, mehdi_amini, llvm-commits

Differential Revision: https://reviews.llvm.org/D20268

Address review comments

llvm-svn: 278330
2016-08-11 12:56:40 +00:00
Evgeniy Stepanov 268826a287 [gold] Save bitcode for module partitions (save-temps + split codegen).
llvm-svn: 265583
2016-04-06 18:32:13 +00:00
Arnaud A. de Grandmaison ba4e977cff Tweak 2 x86 gold tests so they can run on non-x86 platforms
llvm-svn: 247415
2015-09-11 14:45:34 +00:00
NAKAMURA Takumi 3c0f9d8170 Tweak llvm/test/tools/gold/X86/parallel.ll to run with pthread-unaware ld.gold on Linux.
If ld.gold is configured without --enable-thread, ld.gold might not load libpthread.so.
Preloading LLVMgold.so loads also libpthread.so.

llvm-svn: 246739
2015-09-03 00:48:59 +00:00
NAKAMURA Takumi 44e3c5f36c Suppress llvm/test/tools/gold/X86/parallel.ll while investigating.
For me,

  Program received signal SIGSEGV, Segmentation fault.
  0x00007ffff7deb0dc in _dl_fixup () from /lib64/ld-linux-x86-64.so.2

llvm-svn: 246641
2015-09-02 10:59:21 +00:00
Peter Collingbourne 87202a4aac gold-plugin: Implement parallel LTO code generation using llvm::splitCodeGen.
Parallelism can be enabled using a new plugin option, jobs=N, where N is
the number of code generation threads.

Differential Revision: http://reviews.llvm.org/D12308

llvm-svn: 246584
2015-09-01 20:40:22 +00:00