tree 2ab4a587fd457e2fa1c690623b5546bedd108896
parent 02d01250dbb75327239bfc97608544926fab2c32
author Than McIntosh <thanm@google.com> 1588689471 -0400
committer Than McIntosh <thanm@google.com> 1588958356 +0000

gollvm: sync with trunk

Sync with trunk at e53d4869a0d, part 1.

This update required quite a few changes. Highlights:

- the LLVM LIRBuilder class now has even more paths that assume that
  you are inserting instructions into an existing basic block parented
  by an existing function, as opposed to generating them without a
  parent. This required converting over all of the builder uses in the
  bridge to use the BlockLIRBuilder, which works around these issues.
  After this change the BinstructionsLIRBuilder helper is no longer
  referenced, so it has been removed.

- convert to using llvm::MaybeAlign as opposed to raw unsigned values
  in places where alignment is set on variables, etc.

- adapt to changes in the LLVM value type class hierarchy (no more
  SequentialType, new sibling types for fixed and variable length
  vector types)

- adapt to some signature changes in LLVM instruction creation
  functions (typically to be more explicit about types)

This CL takes care of llvm-goc, gotools, and libgo, however a lot
of the unit tests need to be remastered (this will be in a follow
on CL).

Updates golang/go#38728.

Change-Id: I491fe30edb4fb3ee9d6e509ebd8b2777e0373b8f
Reviewed-on: https://go-review.googlesource.com/c/gollvm/+/232497
Reviewed-by: eric fang <eric.fang@arm.com>
Reviewed-by: Cherry Zhang <cherryyz@google.com>