Commit Graph

5 Commits

Author SHA1 Message Date
Chandler Carruth 2946cd7010 Update the file headers across all of the LLVM projects in the monorepo
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

llvm-svn: 351636
2019-01-19 08:50:56 +00:00
Aditya Nandakumar f75d4f329c [GISel]: Provide standard interface to observe changes in GISel passes
https://reviews.llvm.org/D54980

This provides a standard API across GISel passes to observe and notify
passes about changes (insertions/deletions/mutations) to MachineInstrs.
This patch also removes the recordInsertion method in MachineIRBuilder
and instead provides method to setObserver.

Reviewed by: vkeles.

llvm-svn: 348406
2018-12-05 20:14:52 +00:00
Daniel Sanders 7fe7acc6b1 [aarch64][globalisel] Define G_ATOMIC_CMPXCHG and G_ATOMICRMW_* and make them legal
The IRTranslator cannot generate these instructions at the moment so there's no
issue with not having implemented ISel for them yet. D40092 will add
G_ATOMIC_CMPXCHG_WITH_SUCCESS and G_ATOMICRMW_* to the IRTranslator and a
further patch will add support for lowering G_ATOMIC_CMPXCHG_WITH_SUCCESS into
G_ATOMIC_CMPXCHG with an external success check via the `Lower` action.

The separation of G_ATOMIC_CMPXCHG_WITH_SUCCESS and G_ATOMIC_CMPXCHG is
to import SelectionDAG rules while still supporting targets that prefer to
custom lower the original LLVM-IR-like operation.

llvm-svn: 319216
2017-11-28 20:21:15 +00:00
Tim Northover 9136617a3f GlobalISel: legalize va_arg on AArch64.
Uses a Custom implementation because the slot sizes being a multiple of the
pointer size isn't really universal, even for the architectures that do have a
simple "void *" va_list.

llvm-svn: 295255
2017-02-15 23:22:50 +00:00
Tim Northover 69fa84a6e9 GlobalISel: rename legalizer components to match others.
The previous names were both misleading (the MachineLegalizer actually
contained the info tables) and inconsistent with the selector & translator (in
having a "Machine") prefix. This should make everything sensible again.

The only functional change is the name of a couple of command-line options.

llvm-svn: 284287
2016-10-14 22:18:18 +00:00