llvm-project

Commit Graph

Author	SHA1	Message	Date
Matt Arsenault	e64c7c7530	Fix missing CHECK-LABELs llvm-svn: 191853	2013-10-02 20:29:00 +00:00
Arnold Schwaighofer	53e622cef4	Don't vectorize if there are outside loop users of the induction variable. We would have to compute the pre increment value, either by computing it on every loop iteration or by splitting the edge out of the loop and inserting a computation for it there. For now, just give up vectorizing such loops. Fixes PR17179. llvm-svn: 190790	2013-09-16 16:17:24 +00:00
Arnold Schwaighofer	70a9be5297	LoopVectorize: PHIs with only outside users should prevent vectorization We check that instructions in the loop don't have outside users (except if they are reduction values). Unfortunately, we skipped this check for if-convertable PHIs. Fixes PR16184. llvm-svn: 183035	2013-05-31 19:53:50 +00:00

Author

SHA1

Message

Date

Matt Arsenault

e64c7c7530

Fix missing CHECK-LABELs

llvm-svn: 191853

2013-10-02 20:29:00 +00:00

Arnold Schwaighofer

53e622cef4

Don't vectorize if there are outside loop users of the induction variable.

We would have to compute the pre increment value, either by computing it on
every loop iteration or by splitting the edge out of the loop and inserting a
computation for it there.

For now, just give up vectorizing such loops.

Fixes PR17179.

llvm-svn: 190790

2013-09-16 16:17:24 +00:00

Arnold Schwaighofer

70a9be5297

LoopVectorize: PHIs with only outside users should prevent vectorization

We check that instructions in the loop don't have outside users (except if
they are reduction values). Unfortunately, we skipped this check for
if-convertable PHIs.

Fixes PR16184.

llvm-svn: 183035

2013-05-31 19:53:50 +00:00

3 Commits