llvm-project

Commit Graph

Author	SHA1	Message	Date
Nikita Popov	4564974504	[SCCP] Propagate inequalities Teach SCCP to create notconstant lattice values from inequality assumes and nonnull metadata, and update getConstant() to make use of them. Additionally isOverdefined() needs to be changed to consider notconstant an overdefined value. Handling inequality branches is delayed until our branch on undef story in other passes has been improved. Differential Revision: https://reviews.llvm.org/D83643	2020-08-04 20:20:52 +02:00
Nikita Popov	f4199b8f0b	[SCCP] Add assume non null test (NFC)	2020-07-25 16:02:15 +02:00
Nikita Popov	9dfea03517	[SCCP] Handle assume predicates Take assume predicates into account when visiting ssa.copy. The handling is the same as for branch predicates, with the difference that we're always on the true edge. Differential Revision: https://reviews.llvm.org/D83257	2020-07-07 20:22:52 +02:00

Author

SHA1

Message

Date

Nikita Popov

4564974504

[SCCP] Propagate inequalities

Teach SCCP to create notconstant lattice values from inequality
assumes and nonnull metadata, and update getConstant() to make
use of them. Additionally isOverdefined() needs to be changed to
consider notconstant an overdefined value.

Handling inequality branches is delayed until our branch on undef
story in other passes has been improved.

Differential Revision: https://reviews.llvm.org/D83643

2020-08-04 20:20:52 +02:00

Nikita Popov

f4199b8f0b

[SCCP] Add assume non null test (NFC)

2020-07-25 16:02:15 +02:00

Nikita Popov

9dfea03517

[SCCP] Handle assume predicates

Take assume predicates into account when visiting ssa.copy. The
handling is the same as for branch predicates, with the difference
that we're always on the true edge.

Differential Revision: https://reviews.llvm.org/D83257

2020-07-07 20:22:52 +02:00

3 Commits