llvm-project

Commit Graph

Author	SHA1	Message	Date
Sanjay Patel	3a3aaf67e0	[DAG] optimize negation of bool Use mask and negate for legalization of i1 source type with SIGN_EXTEND_INREG. With the mask, this should be no worse than 2 shifts. The mask can be eliminated in some cases, so that should be better than 2 shifts. This change exposed some missing folds related to negation: https://reviews.llvm.org/rL284239 https://reviews.llvm.org/rL284395 There may be others, so please let me know if you see any regressions. Differential Revision: https://reviews.llvm.org/D25485 llvm-svn: 284611	2016-10-19 16:58:59 +00:00
Sanjay Patel	928f3d73f6	[PowerPC] add tests for PR30661 llvm-svn: 284279	2016-10-14 20:51:41 +00:00

Author

SHA1

Message

Date

Sanjay Patel

3a3aaf67e0

[DAG] optimize negation of bool

Use mask and negate for legalization of i1 source type with SIGN_EXTEND_INREG.
With the mask, this should be no worse than 2 shifts. The mask can be eliminated
in some cases, so that should be better than 2 shifts.

This change exposed some missing folds related to negation:
https://reviews.llvm.org/rL284239
https://reviews.llvm.org/rL284395

There may be others, so please let me know if you see any regressions.

Differential Revision: https://reviews.llvm.org/D25485

llvm-svn: 284611

2016-10-19 16:58:59 +00:00

Sanjay Patel

928f3d73f6

[PowerPC] add tests for PR30661

llvm-svn: 284279

2016-10-14 20:51:41 +00:00

2 Commits