llvm-project

Commit Graph

Author	SHA1	Message	Date
Matt Arsenault	1ef3ed0eb4	GlobalISel: Rewrite getLCMType Try to make the behavior more consistent with getGCDType, and bias towards returning something closer to the source type whenever there's an ambiguity.	2020-07-20 21:06:30 -04:00
Matt Arsenault	12d5bec8c7	GlobalISel: Handle more cases in getGCDType Try harder to find a canonical unmerge type when trying to cover the desired target type. Handle finding a compatible unmerge type for two vectors with different element types. This will return the largest multiple of the source vector element that will evenly divide the target vector type. Also make the handling mixing scalars and vectors, and prefer the source element type as the unmerge target type.	2020-07-20 20:53:35 -04:00
Matt Arsenault	4fb2116ee7	GlobalISel: Add unit tests for some utils functions The test constants were originally constexpr, but this apparently crashes old versions of gcc.	2020-06-24 12:00:38 -04:00

Author

SHA1

Message

Date

Matt Arsenault

1ef3ed0eb4

GlobalISel: Rewrite getLCMType

Try to make the behavior more consistent with getGCDType, and bias
towards returning something closer to the source type whenever there's
an ambiguity.

2020-07-20 21:06:30 -04:00

Matt Arsenault

12d5bec8c7

GlobalISel: Handle more cases in getGCDType

Try harder to find a canonical unmerge type when trying to cover the
desired target type. Handle finding a compatible unmerge type for two
vectors with different element types. This will return the largest
multiple of the source vector element that will evenly divide the
target vector type.

Also make the handling mixing scalars and vectors, and prefer the
source element type as the unmerge target type.

2020-07-20 20:53:35 -04:00

Matt Arsenault

4fb2116ee7

GlobalISel: Add unit tests for some utils functions

The test constants were originally constexpr, but this apparently
crashes old versions of gcc.

2020-06-24 12:00:38 -04:00

3 Commits