llvm-project

Commit Graph

Author	SHA1	Message	Date
Matt Arsenault	d40e1c3fbc	Add triple to test to fix bots llvm-svn: 217612	2014-09-11 17:50:20 +00:00
Matt Arsenault	8239eaab99	Add DAG combine for shl + add of constants. Do (shl (add x, c1), c2) -> (add (shl x, c2), c1 << c2) This is already done for multiplies, but since multiplies by powers of two are turned into shifts, we also need to handle it here. This might want checks for isLegalAddImmediate to avoid transforming an add of a legal immediate with one that isn't. llvm-svn: 217610	2014-09-11 17:34:19 +00:00

Author

SHA1

Message

Date

Matt Arsenault

d40e1c3fbc

Add triple to test to fix bots

llvm-svn: 217612

2014-09-11 17:50:20 +00:00

Matt Arsenault

8239eaab99

Add DAG combine for shl + add of constants.

Do
 (shl (add x, c1), c2) -> (add (shl x, c2), c1 << c2)

This is already done for multiplies, but since multiplies
by powers of two are turned into shifts, we also need
to handle it here.

This might want checks for isLegalAddImmediate to avoid
transforming an add of a legal immediate with one that isn't.

llvm-svn: 217610

2014-09-11 17:34:19 +00:00

2 Commits