llvm-project

Commit Graph

Author	SHA1	Message	Date
Matt Arsenault	fee41517fe	AMDGPU/GlobalISel: Introduce post-legalize combiner The current set of custom combines are only really useful after legalization, so move them there. There is a lot of overlap in the boilerplate here, but I think we do want a pretty different set of combines before and after legalize. I think we will want a lot of overlap between the post-legalize and a post-regbankselect combiner.	2020-02-24 22:12:12 -05:00
Matt Arsenault	78d455adf0	GlobalISel: Add combine to narrow G_LSHR Produce an unmerge to a narrower type and introduce a narrower shift if needed. I wasn't sure if there was a better way to parameterize the target's preferred shift type for the GICombineRule, so manually call the combine helper.	2020-02-17 08:04:52 -08:00

Author

SHA1

Message

Date

Matt Arsenault

fee41517fe

AMDGPU/GlobalISel: Introduce post-legalize combiner

The current set of custom combines are only really useful after
legalization, so move them there. There is a lot of overlap in the
boilerplate here, but I think we do want a pretty different set of
combines before and after legalize. I think we will want a lot of
overlap between the post-legalize and a post-regbankselect combiner.

2020-02-24 22:12:12 -05:00

Matt Arsenault

78d455adf0

GlobalISel: Add combine to narrow G_LSHR

Produce an unmerge to a narrower type and introduce a narrower shift
if needed. I wasn't sure if there was a better way to parameterize the
target's preferred shift type for the GICombineRule, so manually call
the combine helper.

2020-02-17 08:04:52 -08:00

2 Commits